feat(cover): 支持横版封面并收紧底栏图标间距

- Drama 新增 coverLandscape，WatchProgress 新增 dramaCoverLandscape
- 继续观看横幅优先使用横版封面，缺省回退竖版
- 底部导航栏图标与文字间距由 5dp 收紧至 1dp

.gitea/workflows/ci.yml

@@ -0,0 +1,25 @@
+# Author: fruit.com.cn
+# ReelShort 客户端 CI：静态分析 + 测试门禁
+name: flutter-ci
+
+on:
+  push:
+    branches: [develop, main]
+  pull_request:
+    branches: [develop, main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          cache: true
+      - name: 依赖
+        run: flutter pub get
+      - name: 静态分析（零告警门禁）
+        run: dart analyze --fatal-infos
+      - name: 单元测试（全绿门禁）
+        run: flutter test -r expanded

.gitignore

@@ -65,3 +65,6 @@ app.*.map.json
 .env
 .env.*
 !.env.example
+
+# IDE 的 Flutter Widget Preview 生成目录。
+.widget_preview/

README.md

@@ -71,42 +71,45 @@ flutter pub get
 ```bash
 adb devices
 adb reverse tcp:8081 tcp:8081
-flutter run -d <device> \
-  --dart-define=API_BASE_URL=http://127.0.0.1:8081
+flutter run -d <device>
 ```
 
 `adb reverse` 将手机的 `127.0.0.1:8081` 转发到电脑；USB 断开或重新连接后需要
-重新执行。
+重新执行。此时用调试条把地址改成 `http://127.0.0.1:8081`（见下节）。
 
-Android 模拟器访问宿主机时使用：
-
-```bash
-flutter run --dart-define=API_BASE_URL=http://10.0.2.2:8081
-```
+Android 模拟器访问宿主机时，同样在调试条里填 `http://10.0.2.2:8081`。
 
 ### iOS
 
 手机与 Mac 需在同一网络，首次启动允许“本地网络”权限：
 
 ```bash
-flutter run -d <udid> \
-  --dart-define=API_BASE_URL=http://<Mac局域网IP>:8081
+flutter run -d <udid>
 ```
 
-### Debug 运行时地址
+### 服务地址配置
 
-debug 包在找剧页加载失败时会显示调试条，点其中的「修改服务器地址」可直接改成
-当前电脑 IP，保存后立即重载，不用重新打包。地址优先级：
+地址是代码里的一个开关，**不做任何网络探测**，也不用传构建参数。两套环境各占
+一个文件：
 
-```text
-本地运行时设置 > --dart-define(API_BASE_URL) > AppConfig.defaultBaseUrl
+| 文件 | 用途 | 默认值 |
+| --- | --- | --- |
+| `lib/core/config/dev_config.dart` | 开发 / 联调 | `http://192.168.31.243:8081` |
+| `lib/core/config/prod_config.dart` | 生产 | `http://39.162.50.99:8081` |
+
+切换环境只改 `lib/core/config/app_config.dart` 里的一个布尔值：
+
+```dart
+static const bool useDevConfig = true; // false 即用生产地址
 ```
 
-`devHostBaseUrl` 默认写死为 `http://192.168.31.243:8081`
-（`lib/core/config/app_config.dart`）。debug 包启动时按
-「环回 `127.0.0.1` → `devHostBaseUrl` → 公网」顺序探测可用地址；release 包不探测，
-固定使用公网地址。换 Wi-Fi、路由器换网段后 `devHostBaseUrl` 会失效，此时要么传
-`--dart-define`，要么改这个常量。release 包不显示地址入口，也不读取本地覆盖。
+换 Wi-Fi 或换网段时只改 `dev_config.dart` 的 `baseUrl`。打生产包前把
+`useDevConfig` 改成 `false`；release 构建若仍为 `true` 会在启动时直接报错，
+避免线上包连到开发机。
+
+debug 包在找剧页加载失败时会显示调试条，点「修改服务器地址」可临时改成当前
+电脑 IP，保存后立即重载、不需要重新打包，该覆盖保存在本地偏好里（仅 debug
+生效，release 不读取）。
 
 ## 画中画
 
@@ -151,30 +154,26 @@ xcodebuild -resolvePackageDependencies \
 
 ```bash
 adb uninstall com.stormg.lumadrama
-flutter run -d <device> \
-  --dart-define=API_BASE_URL=http://127.0.0.1:8081
+flutter run -d <device>
 ```
 
 ## 生产打包（Android）
 
-生产包只包含以下两个 ABI，**打成一个 APK**，不做 split：
+两个渠道出两种产物，源码同一套：
 
-| ABI | 适用设备 |
-| --- | --- |
-| `arm64-v8a` | 现代手机（64 位） |
-| `armeabi-v7a` | 老 32 位机 |
-
-```bash
-flutter build apk --release --target-platform android-arm64,android-arm
-# 产出单个：build/app/outputs/flutter-apk/app-release.apk（约 37MB）
-```
+| 渠道 | 产物 | 命令 | 体积 |
+| --- | --- | --- | --- |
+| Google Play | AAB（按设备下发） | `flutter build appbundle --release` | 上传 28MB，用户下载约 8MB |
+| 国内各大市场 | 通用 APK（arm64 + v7） | `flutter build apk --release` | 约 13MB |
 
 说明：
 
 - `android/app/build.gradle.kts` 的 `release` 已配置 `abiFilters`，只保留 `arm64-v8a` 与 `armeabi-v7a`，插件也不会再带入 `x86_64` 原生库。
-- `x86_64` 只用于模拟器，不进入生产包。
-- 不要直接运行 `flutter build apk --release`：默认会编译三套原生库，包体约 57MB。
-- 只有需要进一步压缩单机下载体积时，才考虑 `--split-per-abi` 出分架构包（arm64 约 21MB、armv7 约 19MB），默认不用。
+- `android/gradle.properties` 里固定了 `split-debug-info=build/symbols` 与 `dart-obfuscation=true`，**IDE 里点 Build APK / Build App Bundle 也会生效**：`libapp.so` 从 ~8MB/ABI 降到 ~1.1MB/ABI。
+- `useLegacyPackaging = true`：原生库以压缩形式存储，这是国内 APK 从 40MB 降到 13MB 的主要原因；代价是安装时解压。
+- **每次发版都要归档 `build/symbols`**，线上崩溃栈需要它还原。
+- release 仍在用 debug 签名（`build.gradle.kts` 的 TODO），上架前必须换成正式 keystore。
+- 不要用 `--split-per-abi`：与 `abiFilters` 冲突；Play 的 AAB 已经按设备拆好。
 
 ## 生产打包（iOS）
 

android/app/build.gradle.kts

@@ -35,6 +35,13 @@ android {
             ndk {
                 abiFilters += listOf("arm64-v8a", "armeabi-v7a")
             }
+            // R8 裁剪未使用的 Java/Kotlin 代码与资源，减小 dex 与 res。
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro",
+            )
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
             signingConfig = signingConfigs.getByName("debug")
@@ -52,6 +59,9 @@ kotlin {
 androidComponents {
     onVariants(selector().withBuildType("release")) { variant ->
         variant.packaging.jniLibs.excludes.add("lib/x86_64/**")
+        // 原生库随 APK 压缩存储：下载体积明显小于解压后的体积，代价是安装时解压。
+        // 本包 90% 体积是 so，这一项对国内商店的 APK 分发影响最大。
+        variant.packaging.jniLibs.useLegacyPackaging = true
     }
 }
 

android/app/proguard-rules.pro

@@ -0,0 +1,11 @@
+# Author: fruit.com.cn
+#
+# R8 保号规则：Flutter 引擎与插件自带的 consumer rules 已覆盖大部分场景，
+# 这里只补本项目原生层通过反射/通道访问、裁剪后容易失效的入口。
+
+# 画中画与权限通道由 MainActivity 直接注册，保留应用包名下的入口类。
+-keep class com.stormg.lumadrama.** { *; }
+
+# Flutter 引擎在 release 下通过 JNI 回调这些类，禁止改名。
+-keep class io.flutter.** { *; }
+-dontwarn io.flutter.embedding.**

android/gradle.properties

@@ -6,3 +6,8 @@ android.useAndroidX=true
 android.newDsl=false
 # This builtInKotlin flag was added by the Flutter template
 android.builtInKotlin=false
+
+# release 包默认剥离 Dart 调试符号并混淆：libapp.so 由 ~8MB 降到 ~1MB/ABI。
+# 符号表输出到 build/symbols，崩溃分析时用它还原堆栈，发布前务必归档。
+split-debug-info=build/symbols
+dart-obfuscation=true

lib/app.dart

@@ -47,6 +47,7 @@ import 'core/data/services/playlist_controller.dart';
 import 'core/data/services/event_tracker.dart';
 import 'core/data/services/playback_position_cache.dart';
 import 'core/data/services/playback_session.dart';
+import 'core/data/services/unlocked_episode_registry.dart';
 import 'core/data/services/video_player_port.dart';
 import 'core/data/services/wallet_controller.dart';
 import 'core/navigation/app_route_observer.dart';
@@ -207,6 +208,10 @@ class _LumaDramaAppState extends State<LumaDramaApp> {
 
   late final LocaleController _localeController = LocaleController();
 
+  /// 登录期内共享的「已解锁收费集」：播放页进出、feed 与全屏切换都要沿用。
+  late final UnlockedEpisodeRegistry _unlockedEpisodes =
+      UnlockedEpisodeRegistry();
+
   @override
   void initState() {
     super.initState();
@@ -226,6 +231,8 @@ class _LumaDramaAppState extends State<LumaDramaApp> {
     if (_auth.isSignedIn == _wasSignedIn) return;
     _wasSignedIn = _auth.isSignedIn;
     _interactionController.clear();
+    // 解锁结论属于账号：换人登录后不能沿用上一个人的可播判断。
+    _unlockedEpisodes.clear();
     if (_auth.isSignedIn) {
       unawaited(_favoriteController.load());
       unawaited(_walletController.load());
@@ -271,6 +278,7 @@ class _LumaDramaAppState extends State<LumaDramaApp> {
           Provider<CatalogApi>.value(value: _catalogApi),
         Provider<PlaybackRepository>.value(value: _playback),
         Provider<PlaybackPositionCache>.value(value: _playbackPositionCache),
+        Provider<UnlockedEpisodeRegistry>.value(value: _unlockedEpisodes),
         Provider<WatchHistoryRepository>.value(value: _watchHistory),
         Provider<FavoriteRepository>.value(value: _favorites),
         Provider<CommentRepository>.value(value: _commentRepository),

lib/core/config/app_config.dart

@@ -1,173 +1,51 @@
 // Author: fruit.com.cn
 
-import 'dart:io';
+import 'dev_config.dart';
+import 'prod_config.dart';
 
-import 'package:flutter/foundation.dart';
-
-/// 客户端与后端约定的运行时配置。
+/// 客户端运行时配置。
 ///
-/// 接口地址优先级：运行时设置 > `--dart-define=API_BASE_URL=...` > 平台默认值。
-/// 开发机的局域网地址会随网络变化，换网络后改 [devHostBaseUrl] 即可。
-class AppConfig {
-  const AppConfig._();
-
-  /// 开发调试默认服务地址，当前指向本机局域网 IP。
+/// 两套环境各一个文件：
+/// - `dev_config.dart`：[DevConfig]（本机联调）
+/// - `prod_config.dart`：[ProdConfig]（生产）
+///
+/// 切换环境只改下面这一个布尔值，不用传任何构建参数、也不做网络探测。
+abstract final class AppConfig {
+  /// **环境开关**：true 用开发环境，false 用生产环境。
   ///
-  /// 换网络时只改这一行，地址不要带结尾斜杠。
-  static const String devHostBaseUrl = 'http://192.168.31.243:8081';
+  /// 打生产包前必须改成 false；release 构建若仍为 true 会在启动时直接报错。
+  static const bool useDevConfig = true;
 
-  /// 本机后端地址：通过 `adb reverse tcp:8081 tcp:8081` 映射到开发机，
-  /// 探测可达时 App 直连本机服务；不可达时回落到公网地址。
-  static const String lanBaseUrl = 'http://127.0.0.1:8081';
-
-  /// 公网地址（远程/移动网络访问时使用）。
-  static const String publicBaseUrl = 'http://39.162.50.99:8081';
-
-  static const String _overrideBaseUrl = String.fromEnvironment('API_BASE_URL');
+  /// 当前选中的环境地址。
+  static String get baseUrl =>
+      useDevConfig ? DevConfig.baseUrl : ProdConfig.baseUrl;
 
+  /// 调试面板手改的地址（见 `ServerEndpoint`）；为空表示用上面的环境地址。
   static String _runtimeBaseUrl = '';
 
+  /// 启动期异步准备（iOS 无线数据权限弹窗），目录请求前等待它。
   static Future<void>? _ready;
 
-  /// 启动地址探测完成信号；默认已完成，避免影响既有测试与调用方。
+  /// 启动准备完成信号；默认已完成，避免影响既有测试与调用方。
   static Future<void> get ready => _ready ?? Future<void>.value();
   static set ready(Future<void> value) => _ready = value;
 
-  static const Duration _probeTimeout = Duration(seconds: 2);
-  static const List<String> _probeCandidates = [
-    lanBaseUrl,
-    devHostBaseUrl,
-    if (devHostBaseUrl != publicBaseUrl) publicBaseUrl,
-  ];
+  static const Duration requestTimeout = Duration(seconds: 8);
 
-  /// Build-time server URL supplied through `--dart-define=API_BASE_URL`.
-  static String get compiledBaseUrl => _overrideBaseUrl;
+  /// 实际使用的服务地址：运行时手改优先，否则用环境开关选中的地址。
+  static String get apiBaseUrl =>
+      _runtimeBaseUrl.isNotEmpty ? _runtimeBaseUrl : baseUrl;
 
-  /// Existing platform-aware fallback used when no runtime or build override exists.
-  static String get defaultBaseUrl => _defaultBaseUrl;
-
-  /// Effective server URL, including the debug-only runtime override.
-  static String get apiBaseUrl => _runtimeBaseUrl.isNotEmpty
-      ? _runtimeBaseUrl
-      : (compiledBaseUrl.isNotEmpty ? compiledBaseUrl : defaultBaseUrl);
-
-  /// 生产包固定走公网地址；仅 debug 才按平台默认到环回/开发机。
-  static final String _defaultBaseUrl = kReleaseMode
-      ? publicBaseUrl
-      : (_runsOnDevMachine
-            ? lanBaseUrl
-            : devHostBaseUrl);
-
-  /// 模拟器、桌面端与开发机同机，环回地址可用；iOS 真机不满足。
-  /// Android 没有等价的探测方式，统一按真机处理（模拟器用
-  /// `--dart-define=API_BASE_URL=http://10.0.2.2:8081` 覆盖）。
-  static final bool _runsOnDevMachine =
-      kIsWeb ||
-      defaultTargetPlatform == TargetPlatform.macOS ||
-      defaultTargetPlatform == TargetPlatform.windows ||
-      defaultTargetPlatform == TargetPlatform.linux ||
-      (defaultTargetPlatform == TargetPlatform.iOS &&
-          Platform.environment.containsKey('SIMULATOR_DEVICE_NAME'));
-
-  /// Applies an already normalized runtime URL. Passing null clears it.
+  /// 应用一个已经规范化的运行时地址；传 null 表示清除。
   static void applyRuntimeBaseUrl(String? value) {
     _runtimeBaseUrl = value ?? '';
   }
 
-  /// Clears the in-memory runtime override, mainly for tests and restarts.
+  /// 清除运行时地址，主要给测试与重启流程用。
   static void clearRuntimeBaseUrl() {
     _runtimeBaseUrl = '';
   }
 
-  static const Duration requestTimeout = Duration(seconds: 8);
-
-  /// 按环回、开发机、公网顺序探测，写入首个返回 200 的地址。
-  ///
-  /// 全部不可达时使用平台默认地址，真机保留开发机地址，避免退回公网。
-  static Future<void> probeAndApplyBaseUrl({
-    Future<bool> Function(String baseUrl)? probe,
-    String? fallbackBaseUrl,
-
-    /// 编译期地址测试注入；未传时读取 `API_BASE_URL`。
-    String? compiledOverride,
-  }) async {
-    final compiled = compiledOverride ?? compiledBaseUrl;
-    if (compiled.isNotEmpty) {
-      if (_runtimeBaseUrl.isEmpty) applyRuntimeBaseUrl(compiled);
-      return;
-    }
-    // 生产包固定公网地址，不再探测环回/开发机局域网地址，避免请求到开发机。
-    if (kReleaseMode) {
-      if (_runtimeBaseUrl.isEmpty) applyRuntimeBaseUrl(publicBaseUrl);
-      return;
-    }
-    final candidates = <String>[
-      if (_runtimeBaseUrl.isNotEmpty) _runtimeBaseUrl,
-      for (final candidate in _probeCandidates)
-        if (candidate != _runtimeBaseUrl) candidate,
-    ];
-    final results = await Future.wait([
-      for (final candidate in candidates)
-        probe == null
-            ? _probeBaseUrl(candidate)
-            : _runInjectedProbe(candidate, probe),
-    ]);
-    for (var index = 0; index < candidates.length; index++) {
-      final candidate = candidates[index];
-      final result = results[index];
-      if (kDebugMode) {
-        final status = result.ok
-            ? 'ok'
-            : 'fail(${result.reason ?? 'request failed'})';
-        debugPrint('[probe] $candidate -> $status');
-      }
-      if (result.ok) {
-        applyRuntimeBaseUrl(candidate);
-        return;
-      }
-    }
-    applyRuntimeBaseUrl(fallbackBaseUrl ?? defaultBaseUrl);
-  }
-
-  static Future<_ProbeResult> _runInjectedProbe(
-    String baseUrl,
-    Future<bool> Function(String baseUrl) probe,
-  ) async {
-    try {
-      return _ProbeResult(ok: await probe(baseUrl));
-    } catch (error) {
-      return _ProbeResult(ok: false, reason: error.toString());
-    }
-  }
-
-  static Future<_ProbeResult> _probeBaseUrl(String baseUrl) async {
-    final client = HttpClient()..connectionTimeout = _probeTimeout;
-    try {
-      return await _requestCategories(
-        client,
-        Uri.parse('$baseUrl/app/categories'),
-      ).timeout(_probeTimeout);
-    } catch (error) {
-      return _ProbeResult(ok: false, reason: error.toString());
-    } finally {
-      client.close(force: true);
-    }
-  }
-
-  static Future<_ProbeResult> _requestCategories(
-    HttpClient client,
-    Uri uri,
-  ) async {
-    final request = await client.getUrl(uri);
-    final response = await request.close();
-    await response.drain<void>();
-    final ok = response.statusCode == 200;
-    return _ProbeResult(
-      ok: ok,
-      reason: ok ? null : 'HTTP ${response.statusCode}',
-    );
-  }
-
   /// 后端返回的是相对路径（/files/...），这里补上服务地址。
   static String mediaUrl(String path) {
     if (path.isEmpty) return '';
@@ -175,10 +53,3 @@ class AppConfig {
     return '$apiBaseUrl$path';
   }
 }
-
-class _ProbeResult {
-  const _ProbeResult({required this.ok, this.reason});
-
-  final bool ok;
-  final String? reason;
-}

lib/core/config/dev_config.dart

@@ -0,0 +1,9 @@
+// Author: fruit.com.cn
+
+/// 开发环境配置。
+///
+/// 本机联调用：换 Wi-Fi、换网段后只改这里的 [baseUrl]，地址不要带结尾斜杠。
+abstract final class DevConfig {
+  /// 开发机后端地址。
+  static const String baseUrl = 'http://192.168.31.243:8081';
+}

lib/core/config/prod_config.dart

@@ -0,0 +1,9 @@
+// Author: fruit.com.cn
+
+/// 生产环境配置。
+///
+/// 发版前确认这里的 [baseUrl]，地址不要带结尾斜杠。
+abstract final class ProdConfig {
+  /// 生产后端地址。
+  static const String baseUrl = 'http://39.162.50.99:8081';
+}

lib/core/config/server_endpoint.dart

@@ -22,16 +22,9 @@ abstract final class ServerEndpoint {
     return value.replaceFirst(RegExp(r'/+$'), '');
   }
 
-  /// Resolves runtime > dart-define > default using normalized valid values.
-  static String resolve({
-    required String? stored,
-    required String compiled,
-    required String fallback,
-  }) {
-    return normalize(stored) ??
-        normalize(compiled) ??
-        normalize(fallback) ??
-        fallback;
+  /// 运行时手改优先，其次构建期默认地址；两者都必须先通过规范校验。
+  static String resolve({required String? stored, required String fallback}) {
+    return normalize(stored) ?? normalize(fallback) ?? fallback;
   }
 
   /// Loads the persisted override before the app creates its ApiClient.
@@ -46,11 +39,7 @@ abstract final class ServerEndpoint {
       final prefs = preferences ?? SharedPreferencesAsync();
       final stored = await prefs.getString(preferenceKey);
       AppConfig.applyRuntimeBaseUrl(
-        resolve(
-          stored: stored,
-          compiled: AppConfig.compiledBaseUrl,
-          fallback: AppConfig.defaultBaseUrl,
-        ),
+        resolve(stored: stored, fallback: AppConfig.baseUrl),
       );
     } catch (_) {
       AppConfig.clearRuntimeBaseUrl();

lib/core/data/models/drama.dart

@@ -97,11 +97,13 @@ class Drama {
     required this.title,
     required this.synopsis,
     required this.posterUrl,
+    this.coverLandscape = '',
     this.episodes = const [],
     this.titleLocales = const {},
     this.synopsisLocales = const {},
     this.tag = '',
     this.tagLocales = const {},
+    this.tagCode = '',
     this.tagColor = '',
     this.category = '',
     this.categoryLocales = const {},
@@ -127,8 +129,14 @@ class Drama {
   final Map<String, String> synopsisLocales;
   final String tag;
   final Map<String, String> tagLocales;
+
+  /// 标签语义码（如 `NEW_ARRIVAL`）。文案会随语言变，语义判断只认这个码。
+  final String tagCode;
   final String tagColor;
   final String posterUrl;
+
+  /// 横版封面，用于继续观看横幅等横向展示位；为空时回退竖版 `posterUrl`。
+  final String coverLandscape;
   final List<Episode> episodes;
   final String category;
   final Map<String, String> categoryLocales;
@@ -172,8 +180,10 @@ class Drama {
       synopsisLocales: text.synopsisLocales,
       tag: text.tag,
       tagLocales: text.tagLocales,
+      tagCode: (json['tagCode'] as String? ?? '').trim(),
       tagColor: json['tagColor'] as String? ?? '',
       posterUrl: json['cover'] as String? ?? '',
+      coverLandscape: json['coverLandscape'] as String? ?? '',
       episodes: preview is Map<String, dynamic>
           ? [Episode.fromJson(preview)]
           : const [],
@@ -204,8 +214,10 @@ class Drama {
       synopsisLocales: text.synopsisLocales,
       tag: text.tag,
       tagLocales: text.tagLocales,
+      tagCode: (json['tagCode'] as String? ?? '').trim(),
       tagColor: json['tagColor'] as String? ?? '',
       posterUrl: json['cover'] as String? ?? '',
+      coverLandscape: json['coverLandscape'] as String? ?? '',
       category: text.category,
       categoryLocales: text.categoryLocales,
       types: text.types,
@@ -315,7 +327,10 @@ class _DramaText {
     final category = _firstText(categoryLocales, json['category'], types);
     return _DramaText(
       title: _firstText(titleLocales, json['title']),
-      synopsis: _firstText(synopsisLocales, json['synopsis'] ?? json['description']),
+      synopsis: _firstText(
+        synopsisLocales,
+        json['synopsis'] ?? json['description'],
+      ),
       titleLocales: titleLocales,
       synopsisLocales: synopsisLocales,
       tag: _firstText(tagLocales, json['tag']),
@@ -328,7 +343,11 @@ class _DramaText {
   }
 }
 
-String _firstText(Map<String, String> locales, Object? fallback, [List<Map<String, String>>? types]) {
+String _firstText(
+  Map<String, String> locales,
+  Object? fallback, [
+  List<Map<String, String>>? types,
+]) {
   final chinese = locales['zh'] ?? '';
   if (chinese.isNotEmpty) return chinese;
   if (types != null && types.isNotEmpty) {
@@ -339,7 +358,9 @@ String _firstText(Map<String, String> locales, Object? fallback, [List<Map<Strin
 }
 
 String _genreText(List<Map<String, String>> types, Object? fallback) {
-  final names = types.map((item) => item['zh'] ?? '').where((value) => value.isNotEmpty);
+  final names = types
+      .map((item) => item['zh'] ?? '')
+      .where((value) => value.isNotEmpty);
   final joined = names.join(' / ');
   if (joined.isNotEmpty) return joined;
   return fallback is String ? fallback : '';

lib/core/data/models/watch_progress.dart

@@ -16,6 +16,7 @@ class WatchProgress {
     this.dramaTitle,
     this.titleLocales = const {},
     this.dramaCover,
+    this.dramaCoverLandscape,
     this.episodeNumber,
     this.totalEpisodes,
     this.finished = false,
@@ -29,6 +30,9 @@ class WatchProgress {
   final String? dramaTitle;
   final Map<String, String> titleLocales;
   final String? dramaCover;
+
+  /// 横版封面，用于继续观看横幅等横向位；为空时回退 [dramaCover]。
+  final String? dramaCoverLandscape;
   final int? episodeNumber;
   final int? totalEpisodes;
   final Duration position;
@@ -60,6 +64,7 @@ class WatchProgress {
       dramaTitle: json['dramaTitle']?.toString(),
       titleLocales: localeMap(json['titleLocales']),
       dramaCover: json['dramaCover']?.toString(),
+      dramaCoverLandscape: json['dramaCoverLandscape']?.toString(),
       episodeNumber: json['episodeNumber'] == null
           ? null
           : jsonToInt(json['episodeNumber']),
@@ -83,6 +88,7 @@ class WatchProgress {
     if (dramaTitle != null) 'dramaTitle': dramaTitle,
     if (titleLocales.isNotEmpty) 'titleLocales': titleLocales,
     if (dramaCover != null) 'dramaCover': dramaCover,
+    if (dramaCoverLandscape != null) 'dramaCoverLandscape': dramaCoverLandscape,
     if (episodeNumber != null) 'episodeNumber': episodeNumber,
     if (totalEpisodes != null) 'totalEpisodes': totalEpisodes,
     'positionMs': position.inMilliseconds,

lib/core/data/models/watch_record.dart

@@ -46,6 +46,14 @@ class WatchRecord {
     return pageCover.isNotEmpty ? pageCover : drama?.posterUrl ?? '';
   }
 
+  /// 横向展示位（继续观看横幅）优先用横版封面，缺省回退竖版。
+  String get displayLandscapeCover {
+    final pageLandscape = progress.dramaCoverLandscape?.trim() ?? '';
+    if (pageLandscape.isNotEmpty) return pageLandscape;
+    final landscape = drama?.coverLandscape.trim() ?? '';
+    return landscape.isNotEmpty ? landscape : displayCover;
+  }
+
   /// 分页接口已带展示字段时无需等待详情加载。
   bool get hasDisplayMetadata =>
       displayTitle.isNotEmpty ||

lib/core/data/remote/account_api.dart

@@ -4,6 +4,7 @@ import '../models/account_device.dart';
 import '../models/account_export.dart';
 import '../models/account_profile.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 个人中心接口：`/app/me*`。
 class AccountApi {
@@ -23,11 +24,9 @@ class AccountApi {
 
   Future<List<AccountDevice>> devices() async {
     final data = await _client.get('/app/me/devices');
-    if (data is! List) return const [];
-    return [
-      for (final item in data)
-        if (item is Map) AccountDevice.fromJson(item.cast<String, dynamic>()),
-    ];
+    return ResponseDecoders.asMapList(
+      data,
+    ).map(AccountDevice.fromJson).toList();
   }
 
   Future<AccountExport> export() async {
@@ -47,6 +46,7 @@ class AccountApi {
     await _client.post('/app/me/deactivate/cancel');
   }
 
+  /// 个人资料允许缺失：后端未返回对象时按空对象解析，页面用默认值兜底。
   Map<String, dynamic> _map(Object? data) =>
-      data is Map ? data.cast<String, dynamic>() : const {};
+      ResponseDecoders.tryMap(data) ?? const {};
 }

lib/core/data/remote/catalog_api.dart

@@ -6,6 +6,7 @@ import '../models/page_result.dart';
 import '../models/playlist_detail.dart';
 import '../models/search_result.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 客户端目录接口，对应后端 `/app/**`。
 class CatalogApi {
@@ -14,11 +15,15 @@ class CatalogApi {
   final ApiClient _client;
 
   Future<HomeFeed> homeFeed() async {
-    return HomeFeed.fromJson(_asMap(await _client.get('/app/home/feed')));
+    return HomeFeed.fromJson(
+      ResponseDecoders.asMap(await _client.get('/app/home/feed')),
+    );
   }
 
   Future<HomeFeed> discoverFeed() async {
-    return HomeFeed.fromJson(_asMap(await _client.get('/app/discover/feed')));
+    return HomeFeed.fromJson(
+      ResponseDecoders.asMap(await _client.get('/app/discover/feed')),
+    );
   }
 
   /// 推荐流；types/categoryId 为空表示不过滤，cursor 为上一页末条。
@@ -29,7 +34,7 @@ class CatalogApi {
     int size = 10,
   }) async {
     return FeedPage.fromJson(
-      _asMap(
+      ResponseDecoders.asMap(
         await _client.get(
           '/app/feed',
           query: {
@@ -58,7 +63,7 @@ class CatalogApi {
         'pageSize': '$pageSize',
       },
     );
-    return SearchResult.fromJson(_asMap(data));
+    return SearchResult.fromJson(ResponseDecoders.asMap(data));
   }
 
   static const int playlistPageSize = 10;
@@ -86,7 +91,7 @@ class CatalogApi {
     int pageSize = playlistDramaPageSize,
   }) async {
     return PlaylistDetail.fromJson(
-      _asMap(
+      ResponseDecoders.asMap(
         await _client.get(
           '/app/playlists/$id',
           query: {
@@ -138,20 +143,13 @@ class CatalogApi {
 
   Future<Drama> dramaDetail(String dramaId) async {
     return Drama.fromDetailJson(
-      _asMap(await _client.get('/app/dramas/$dramaId')),
+      ResponseDecoders.asMap(await _client.get('/app/dramas/$dramaId')),
     );
   }
 
   List<ContentCategory> _categories(Object? data) {
-    if (data is! List) return const [];
-    return [
-      for (final item in data)
-        if (item is Map<String, dynamic>) ContentCategory.fromJson(item),
-    ];
-  }
-
-  Map<String, dynamic> _asMap(Object? data) {
-    if (data is Map<String, dynamic>) return data;
-    throw const ApiException(-1, '返回数据格式异常');
+    return ResponseDecoders.asMapList(
+      data,
+    ).map(ContentCategory.fromJson).toList();
   }
 }

lib/core/data/remote/category_api.dart

@@ -4,6 +4,7 @@ import '../models/content_category.dart';
 import '../models/drama.dart';
 import '../models/page_result.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 内容分类接口，对应契约 `GET /app/categories`。
 class CategoryApi {
@@ -16,11 +17,9 @@ class CategoryApi {
   /// 拉取已启用分类，id 全程按字符串解析。
   Future<List<ContentCategory>> list() async {
     final data = await _client.get('/app/categories');
-    if (data is! List) return const [];
-    return [
-      for (final item in data)
-        if (item is Map<String, dynamic>) ContentCategory.fromJson(item),
-    ];
+    return ResponseDecoders.asMapList(
+      data,
+    ).map(ContentCategory.fromJson).toList();
   }
 
   /// 分类下已上线短剧，pageIndex 从 1 开始。

lib/core/data/remote/commerce_api.dart

@@ -4,6 +4,7 @@ import '../models/order.dart';
 import '../models/product.dart';
 import '../models/wallet.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 金币与解锁接口，对应契约 §1.8。
 class CommerceApi {
@@ -13,8 +14,7 @@ class CommerceApi {
 
   Future<WalletSnapshot> wallet() async {
     final data = await _client.get('/app/wallet');
-    if (data is Map<String, dynamic>) return WalletSnapshot.fromJson(data);
-    throw const ApiException(-1, '返回数据格式异常');
+    return WalletSnapshot.fromJson(ResponseDecoders.asMap(data));
   }
 
   /// 上架商品列表；`type` 传 `COIN_PACK` 或 `VIP`。
@@ -23,13 +23,9 @@ class CommerceApi {
       '/app/products',
       query: type == null ? null : {'type': type},
     );
-    if (data is List) {
-      return data
-          .whereType<Map<String, dynamic>>()
-          .map(AppProduct.fromJson)
-          .toList();
-    }
-    throw const ApiException(-1, '返回数据格式异常');
+    return ResponseDecoders.requiredMapList(
+      data,
+    ).map(AppProduct.fromJson).toList();
   }
 
   /// 创建充值订单，返回 `CREATED` 状态订单。
@@ -38,13 +34,11 @@ class CommerceApi {
       '/app/orders',
       body: {'productId': productId},
     );
-    if (data is Map<String, dynamic>) return AppOrder.fromJson(data);
-    throw const ApiException(-1, '返回数据格式异常');
+    return AppOrder.fromJson(ResponseDecoders.asMap(data));
   }
 
   Future<UnlockResult> unlock(String episodeId) async {
     final data = await _client.post('/app/episodes/$episodeId/unlock');
-    if (data is Map<String, dynamic>) return UnlockResult.fromJson(data);
-    throw const ApiException(-1, '返回数据格式异常');
+    return UnlockResult.fromJson(ResponseDecoders.asMap(data));
   }
 }

lib/core/data/remote/download_api.dart

@@ -3,6 +3,7 @@
 import '../models/download_license.dart';
 import '../models/download_policy.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 离线下载授权接口，对应契约 §1.6 的全部 8 个接口。
 ///
@@ -15,7 +16,7 @@ class DownloadApi {
   /// 拉取配额和偏好策略。
   Future<DownloadPolicy> policy() async {
     return DownloadPolicy.fromJson(
-      _asMap(await _client.get('/app/downloads/policy')),
+      ResponseDecoders.asMap(await _client.get('/app/downloads/policy')),
     );
   }
 
@@ -30,7 +31,7 @@ class DownloadApi {
   /// 申请下载授权；同集重复申请由服务端保证幂等。
   Future<DownloadLicense> grant(String episodeId, {String? quality}) async {
     return DownloadLicense.fromJson(
-      _asMap(
+      ResponseDecoders.asMap(
         await _client.post(
           '/app/downloads',
           body: {'episodeId': episodeId, 'quality': ?quality},
@@ -42,17 +43,17 @@ class DownloadApi {
   /// 拉取当前设备的授权列表。
   Future<List<DownloadLicense>> list() async {
     final data = await _client.get('/app/downloads');
-    if (data is! List) return const [];
-    return [
-      for (final item in data)
-        if (item is Map<String, dynamic>) DownloadLicense.fromJson(item),
-    ];
+    return ResponseDecoders.asMapList(
+      data,
+    ).map(DownloadLicense.fromJson).toList();
   }
 
   /// 续传前刷新短时效下载地址。
   Future<DownloadLicense> refreshUrl(String episodeId) async {
     return DownloadLicense.fromJson(
-      _asMap(await _client.get('/app/downloads/$episodeId/url')),
+      ResponseDecoders.asMap(
+        await _client.get('/app/downloads/$episodeId/url'),
+      ),
     );
   }
 
@@ -67,7 +68,7 @@ class DownloadApi {
     String? errorMsg,
   }) async {
     return DownloadLicense.fromJson(
-      _asMap(
+      ResponseDecoders.asMap(
         await _client.post(
           '/app/downloads/$episodeId/progress',
           body: {
@@ -93,9 +94,4 @@ class DownloadApi {
     final data = await _client.delete('/app/downloads');
     return data is int ? data : 0;
   }
-
-  Map<String, dynamic> _asMap(Object? data) {
-    if (data is Map<String, dynamic>) return data;
-    throw const ApiException(-1, '');
-  }
 }

lib/core/data/remote/playback_api.dart

@@ -3,6 +3,7 @@
 import '../models/episode_stats.dart';
 import '../models/play_ticket.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 播放票据接口：`GET /app/episodes/{id}/play`（契约 §1.4）。
 ///
@@ -15,14 +16,12 @@ class PlaybackApi {
 
   Future<PlayTicket> ticket(String episodeId) async {
     final data = await _client.get('/app/episodes/$episodeId/play');
-    if (data is Map<String, dynamic>) return PlayTicket.fromJson(data);
-    throw const ApiException(-1, '返回数据格式异常');
+    return PlayTicket.fromJson(ResponseDecoders.asMap(data));
   }
 
   /// 轻量刷新互动计数：不签发地址，也不占用播放票据缓存。
   Future<EpisodeStats> episodeStats(String episodeId) async {
     final data = await _client.get('/app/episodes/$episodeId/stats');
-    if (data is Map<String, dynamic>) return EpisodeStats.fromJson(data);
-    throw const ApiException(-1, '返回数据格式异常');
+    return EpisodeStats.fromJson(ResponseDecoders.asMap(data));
   }
 }

lib/core/data/remote/response_decoders.dart

@@ -0,0 +1,49 @@
+// Author: fruit.com.cn
+
+import 'api_exception.dart';
+
+/// 接口响应 `data` 字段的统一解析。
+///
+/// 此前每个 `*_api.dart` 各写一份 `is Map` 判断与错误文案，还出现过抛空
+/// message 导致界面显示空白的情况；统一收口到这里，语义只有三种：
+/// 必须为对象、可为空对象、对象数组。
+abstract final class ResponseDecoders {
+  /// 业务失败码：HTTP 成功但 `data` 结构不符合约定。
+  static const int malformedCode = -1;
+
+  /// `data` 结构异常时的提示，可直接展示给用户。
+  static const String malformedMessage = '返回数据格式异常';
+
+  /// 要求 `data` 是对象，否则抛 [ApiException]。
+  static Map<String, dynamic> asMap(Object? data) {
+    final map = tryMap(data);
+    if (map == null) {
+      throw const ApiException(malformedCode, malformedMessage);
+    }
+    return map;
+  }
+
+  /// 允许缺失：`data` 为空或不是对象时返回 null。
+  static Map<String, dynamic>? tryMap(Object? data) {
+    if (data is Map<String, dynamic>) return data;
+    if (data is Map) return data.cast<String, dynamic>();
+    return null;
+  }
+
+  /// 对象数组；不是数组时按空列表处理，避免列表页因结构异常白屏。
+  static List<Map<String, dynamic>> asMapList(Object? data) {
+    if (data is! List) return const [];
+    return data
+        .whereType<Map>()
+        .map((item) => item.cast<String, dynamic>())
+        .toList();
+  }
+
+  /// 对象数组；不是数组时抛 [ApiException]，用于不能静默为空的数据（如商品）。
+  static List<Map<String, dynamic>> requiredMapList(Object? data) {
+    if (data is! List) {
+      throw const ApiException(malformedCode, malformedMessage);
+    }
+    return asMapList(data);
+  }
+}

lib/core/data/remote/watch_api.dart

@@ -3,6 +3,7 @@
 import '../models/page_result.dart';
 import '../models/watch_progress.dart';
 import 'api_client.dart';
+import 'response_decoders.dart';
 
 /// 观看进度接口：`/app/watch/*`（契约 §1.5）。支持账号或设备身份。
 class WatchApi {
@@ -28,7 +29,8 @@ class WatchApi {
         'source': source,
       },
     );
-    return data is Map<String, dynamic> ? WatchProgress.fromJson(data) : null;
+    final map = ResponseDecoders.tryMap(data);
+    return map == null ? null : WatchProgress.fromJson(map);
   }
 
   /// 某部剧的续看位置；没有记录时后端返回空 data。
@@ -37,7 +39,8 @@ class WatchApi {
       '/app/watch/progress',
       query: {'dramaId': dramaId},
     );
-    return data is Map<String, dynamic> ? WatchProgress.fromJson(data) : null;
+    final map = ResponseDecoders.tryMap(data);
+    return map == null ? null : WatchProgress.fromJson(map);
   }
 
   /// 最近观看分页：`pageIndex`/`pageSize`，解包 `PageResult`。
@@ -49,13 +52,9 @@ class WatchApi {
       '/app/watch/recent',
       query: {'pageIndex': '$pageIndex', 'pageSize': '$pageSize'},
     );
-    if (data is! Map) {
-      return const PageResult();
-    }
-    return PageResult.fromJson(
-      Map<String, dynamic>.from(data),
-      WatchProgress.fromJson,
-    );
+    final map = ResponseDecoders.tryMap(data);
+    if (map == null) return const PageResult();
+    return PageResult.fromJson(map, WatchProgress.fromJson);
   }
 
   /// 删除某部剧的观看记录（记录页清单条用）。

lib/core/data/services/catalog_retry.dart

@@ -1,12 +0,0 @@
-// Author: fruit.com.cn
-
-import '../../config/app_config.dart';
-
-/// 重新探测服务地址后再加载指定目录数据。
-Future<void> retryCatalogLoad({
-  required Future<void> Function() reload,
-  Future<void> Function()? probe,
-}) async {
-  await (probe ?? AppConfig.probeAndApplyBaseUrl)();
-  await reload();
-}

lib/core/data/services/channel_feed_controller.dart

@@ -0,0 +1,233 @@
+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+
+import '../../data/models/drama.dart';
+import '../../data/models/feed_page.dart';
+
+/// 单个分桶（频道/分类）的游标分页状态。
+class ChannelFeedState {
+  List<Drama> dramas = const [];
+  String? cursor;
+  bool hasMore = true;
+  bool loaded = false;
+  bool loading = false;
+  bool loadingMore = false;
+  String? lastError;
+  int requestSeq = 0;
+  Future<bool>? inFlight;
+  bool skipNextRefresh = false;
+
+  /// 正在持有 [loading] 的那次刷新请求的序号；被抢占时据此只由原请求复位。
+  int? loadingOwner;
+}
+
+/// 按 key 分桶的游标分页控制器基类。
+///
+/// 首页频道与剧场分类的逻辑完全同构：缓存优先渲染、请求序号防串台、
+/// 分页去重追加。两者此前各写一份，改动容易只改一边，故收口到这里，
+/// 子类只需提供分桶 key 与「如何发一次请求」。
+abstract class ChannelFeedController<K> extends ChangeNotifier {
+  ChannelFeedController(
+    K initialKey, {
+    bool initiallySelected = true,
+    this.requestTimeout = defaultRequestTimeout,
+  }) : _current = initialKey,
+       _selected = initiallySelected;
+
+  static const int pageSize = 20;
+  static const Duration defaultRequestTimeout = Duration(seconds: 10);
+
+  final Duration requestTimeout;
+  final Map<K, ChannelFeedState> _states = {};
+  K _current;
+  bool _selected;
+  bool _disposed = false;
+
+  K get currentKey => _current;
+  String? get lastError => _state(_current).lastError;
+  List<Drama> get dramas => _state(_current).dramas;
+  String? get cursor => _state(_current).cursor;
+  bool get hasMore => _state(_current).hasMore;
+  bool get loaded => _state(_current).loaded;
+  bool get isLoading => _state(_current).loading;
+  bool get loadingMore => _state(_current).loadingMore;
+  bool get loadingFirstPage => !loaded && _state(_current).loading;
+
+  /// 子类实现：按 key 拉一页；[cursor] 为空表示首屏/刷新。
+  @protected
+  Future<FeedPage> fetchPage(K key, {String? cursor});
+
+  /// 同步切换分桶；有缓存先渲染，无缓存时复用或等待在飞请求。
+  @protected
+  Future<void> selectKey(K next) async {
+    if (_selected && next == _current) return;
+    _current = next;
+    _selected = true;
+    _notify();
+    final state = _state(next);
+    if (state.dramas.isNotEmpty) {
+      if (state.skipNextRefresh) {
+        state.skipNextRefresh = false;
+      } else if (!state.loading) {
+        unawaited(_refresh(next, keepData: true));
+      }
+      return;
+    }
+    if (state.loading) {
+      final inFlight = state.inFlight;
+      if (inFlight != null) await inFlight;
+      state.skipNextRefresh = false;
+      return;
+    }
+    await _refresh(next, keepData: false);
+  }
+
+  /// 用已有数据填充某个分桶，不发起网络请求。
+  @protected
+  void seedKey(K key, List<Drama> dramas) {
+    final state = _state(key);
+    state
+      ..requestSeq = state.requestSeq + 1
+      ..dramas = List.unmodifiable(dramas)
+      ..cursor = null
+      ..hasMore = false
+      ..loaded = true
+      ..loading = false
+      ..loadingOwner = null
+      ..loadingMore = false
+      ..lastError = null
+      ..inFlight = null;
+    _notifyIfCurrent(key);
+  }
+
+  /// 后台预取某个分桶首屏；成功后标记「切过去不必再刷一次」。
+  @protected
+  Future<void> prefetchKey(K key) async {
+    final state = _state(key);
+    if (state.loaded || state.loading) return;
+    final success = await _refresh(key, keepData: false);
+    if (success && !_disposed) state.skipNextRefresh = true;
+  }
+
+  /// 刷新当前分桶，失败时保留旧数据。
+  Future<bool> refreshCurrent() async {
+    final state = _state(_current);
+    if (state.loading) {
+      return await state.inFlight ?? false;
+    }
+    return _refresh(_current, keepData: true);
+  }
+
+  /// 加载当前分桶下一页并去重追加。
+  Future<void> loadMore() async {
+    final key = _current;
+    final state = _state(key);
+    if (!state.hasMore || state.loadingMore || state.cursor == null) return;
+    final seq = ++state.requestSeq;
+    state.loadingMore = true;
+    _notifyIfCurrent(key);
+    try {
+      final page = await fetchPage(
+        key,
+        cursor: state.cursor,
+      ).timeout(requestTimeout);
+      if (!_acceptSequence(key, seq)) return;
+      final seen = state.dramas.map((drama) => drama.id).toSet();
+      final appended = page.dramas
+          .where((drama) => seen.add(drama.id))
+          .toList();
+      state
+        ..dramas = List.unmodifiable([...state.dramas, ...appended])
+        ..cursor = page.nextCursor
+        ..hasMore = page.hasMore
+        ..loaded = true
+        ..lastError = null;
+    } catch (error) {
+      if (_acceptSequence(key, seq)) {
+        state.lastError = error.toString();
+      }
+    } finally {
+      state.loadingMore = false;
+      _notifyIfCurrent(key);
+    }
+  }
+
+  Future<bool> _refresh(K key, {required bool keepData}) {
+    final state = _state(key);
+    final operation = _performRefresh(key, keepData: keepData);
+    state.inFlight = operation;
+    unawaited(_clearInFlight(state, operation));
+    return operation;
+  }
+
+  Future<bool> _performRefresh(K key, {required bool keepData}) async {
+    final state = _state(key);
+    final seq = ++state.requestSeq;
+    state
+      ..loading = true
+      ..loadingOwner = seq
+      ..lastError = null;
+    _notifyIfCurrent(key);
+    try {
+      final page = await fetchPage(key).timeout(requestTimeout);
+      if (!_acceptSequence(key, seq)) return false;
+      state
+        ..dramas = List.unmodifiable(page.dramas)
+        ..cursor = page.nextCursor
+        ..hasMore = page.hasMore
+        ..loaded = true
+        ..lastError = null;
+      _notifyIfCurrent(key);
+      return true;
+    } catch (error) {
+      if (!_acceptSequence(key, seq)) return false;
+      if (!keepData) state.dramas = const [];
+      state
+        ..loaded = true
+        ..lastError = error.toString();
+      _notifyIfCurrent(key);
+      return false;
+    } finally {
+      // 只由「真正拥有 loading 的那次请求」复位：被 loadMore 抢占时它不再
+      // 更新数据，但必须收掉自己打开的加载态，否则该分桶会一直显示加载中，
+      // 之后 refreshCurrent 也只会读到已清空的 inFlight 而永远返回 false。
+      if (!_disposed && state.loadingOwner == seq) {
+        state
+          ..loading = false
+          ..loadingOwner = null;
+        _notifyIfCurrent(key);
+      }
+    }
+  }
+
+  Future<void> _clearInFlight(
+    ChannelFeedState state,
+    Future<bool> operation,
+  ) async {
+    await operation;
+    if (identical(state.inFlight, operation)) state.inFlight = null;
+  }
+
+  ChannelFeedState _state(K key) =>
+      _states.putIfAbsent(key, ChannelFeedState.new);
+
+  bool _acceptSequence(K key, int seq) =>
+      !_disposed && _state(key).requestSeq == seq;
+
+  void _notifyIfCurrent(K key) {
+    if (!_disposed && key == _current) _notify();
+  }
+
+  void _notify() {
+    if (!_disposed) notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _disposed = true;
+    super.dispose();
+  }
+}

lib/core/data/services/favorite_controller.dart

@@ -1,17 +1,18 @@
 // Author: fruit.com.cn
 
-import 'package:flutter/foundation.dart';
-
 import '../models/drama.dart';
+import '../models/page_result.dart';
 import '../remote/api_client.dart';
 import '../repositories/favorite_repository.dart';
+import 'paged_list_controller.dart';
 
 /// 收藏状态：**以服务端为准**。
 ///
 /// 点击收藏先乐观更新（立刻变色），失败再回滚并给出提示 —— 网络抖动时不至于
 /// "点了没反应"或"看起来收藏了其实没有"。
-class FavoriteController extends ChangeNotifier {
-  FavoriteController(this._repository, {this.pageSize = defaultPageSize});
+class FavoriteController extends PagedListController<Drama> {
+  FavoriteController(this._repository, {this.pageSize = defaultPageSize})
+    : super(fallbackErrorKey: 'favoritesError');
 
   static const int defaultPageSize = 20;
 
@@ -19,17 +20,9 @@ class FavoriteController extends ChangeNotifier {
   final int pageSize;
   final Set<String> _saved = {};
   final Map<String, int> _favoriteCounts = {};
-  List<Drama> cards = const [];
-  int total = 0;
-  bool loading = false;
-  bool loadingMore = false;
-  bool hasMore = false;
-  String? error;
-  String? loadMoreError;
-  int? lastErrorCode;
-  int _pageIndex = 0;
-  int _requestSeq = 0;
-  bool _disposed = false;
+
+  /// 收藏列表卡片（按服务端顺序）。
+  List<Drama> get cards => items;
 
   Set<String> get savedIds => Set.unmodifiable(_saved);
 
@@ -38,6 +31,33 @@ class FavoriteController extends ChangeNotifier {
   /// 当前剧收藏数；包含本地 toggle 增量。
   int? favoriteCount(String dramaId) => _favoriteCounts[dramaId];
 
+  /// 页面统一把收藏失败翻译成固定 key。
+  @override
+  String? errorKeyFor(Object failure) => 'favoritesError';
+
+  @override
+  Future<PageResult<Drama>> fetchPage(int pageIndex) {
+    return _repository.page(pageIndex: pageIndex, pageSize: pageSize);
+  }
+
+  @override
+  String itemKey(Drama item) => item.id;
+
+  /// 第一页到位后，用服务端列表校准收藏集合与计数。
+  @override
+  void onItemsReplaced() {
+    _saved
+      ..clear()
+      ..addAll(items.map((drama) => drama.id));
+    _rememberCardCounts(items);
+  }
+
+  @override
+  Future<void> onPageLoaded(List<Drama> added) async {
+    _saved.addAll(added.map((drama) => drama.id));
+    _rememberCardCounts(added);
+  }
+
   /// 首次展示时缓存卡片基数；之后统一由本控制器维护，避免页面各存一份。
   int? favoriteCountFor(Drama drama) {
     final current = _favoriteCounts[drama.id];
@@ -82,81 +102,6 @@ class FavoriteController extends ChangeNotifier {
     if (notify) this.notify();
   }
 
-  void notify() {
-    if (!_disposed) notifyListeners();
-  }
-
-  /// 拉收藏列表：列表既用于"我的"页展示，也用于校准 [savedIds]。
-  Future<void> load() async {
-    final request = ++_requestSeq;
-    loading = true;
-    loadingMore = false;
-    error = null;
-    loadMoreError = null;
-    lastErrorCode = null;
-    notify();
-    try {
-      final page = await _repository.page(pageIndex: 1, pageSize: pageSize);
-      if (_disposed || request != _requestSeq) return;
-      final list = _uniqueCards(page.list);
-      cards = list;
-      _saved
-        ..clear()
-        ..addAll(list.map((drama) => drama.id));
-      _rememberCardCounts(list);
-      total = page.total;
-      _pageIndex = 1;
-      hasMore = page.list.isNotEmpty && cards.length < total;
-    } catch (failure) {
-      if (!_disposed && request == _requestSeq) {
-        error = 'favoritesError';
-        if (failure is ApiException) lastErrorCode = failure.code;
-      }
-    } finally {
-      if (!_disposed && request == _requestSeq) {
-        loading = false;
-        notify();
-      }
-    }
-  }
-
-  /// 追加下一页；正在刷新、已在加载或无更多时直接忽略。
-  Future<void> loadMore() async {
-    if (loading || loadingMore || !hasMore) return;
-    final request = ++_requestSeq;
-    loadingMore = true;
-    loadMoreError = null;
-    lastErrorCode = null;
-    notify();
-    try {
-      final page = await _repository.page(
-        pageIndex: _pageIndex + 1,
-        pageSize: pageSize,
-      );
-      if (_disposed || request != _requestSeq) return;
-      final known = cards.map((drama) => drama.id).toSet();
-      final appended = _uniqueCards(
-        page.list,
-      ).where((drama) => known.add(drama.id)).toList(growable: false);
-      cards = [...cards, ...appended];
-      _saved.addAll(appended.map((drama) => drama.id));
-      _rememberCardCounts(appended);
-      total = page.total;
-      _pageIndex += 1;
-      hasMore = page.list.isNotEmpty && cards.length < total;
-    } catch (failure) {
-      if (!_disposed && request == _requestSeq) {
-        loadMoreError = 'favoritesError';
-        if (failure is ApiException) lastErrorCode = failure.code;
-      }
-    } finally {
-      if (!_disposed && request == _requestSeq) {
-        loadingMore = false;
-        notify();
-      }
-    }
-  }
-
   /// 每次切换都以接口状态为准；匿名请求由设备号归属。
   ///
   /// [card] 是当前剧的卡片（播放页/详情页手上就有）：收藏成功时直接放进列表，
@@ -169,15 +114,13 @@ class FavoriteController extends ChangeNotifier {
         : favoriteCountFor(card);
     final previousCards = cards;
     final previousTotal = total;
-    final previousHasMore = hasMore;
     // 乐观更新
     if (wasSaved) {
       _saved.remove(dramaId);
       _stepCount(dramaId, -1);
       if (cards.any((drama) => drama.id == dramaId)) {
-        cards = cards.where((drama) => drama.id != dramaId).toList();
-        total = total > 0 ? total - 1 : 0;
-        hasMore = cards.length < total;
+        setItems(cards.where((drama) => drama.id != dramaId).toList());
+        setTotal(total - 1);
       }
     } else {
       _saved.add(dramaId);
@@ -191,13 +134,11 @@ class FavoriteController extends ChangeNotifier {
         _saved.add(dramaId);
         if (wasSaved) {
           _restoreCount(dramaId, previousCount);
-          cards = previousCards;
-          total = previousTotal;
-          hasMore = previousHasMore;
+          setItems(previousCards);
+          setTotal(previousTotal);
         } else if (card != null && !cards.any((drama) => drama.id == dramaId)) {
-          cards = [card, ...cards];
-          total += 1;
-          hasMore = cards.length < total;
+          setItems([card, ...cards]);
+          setTotal(total + 1);
         }
       } else {
         _saved.remove(dramaId);
@@ -205,18 +146,16 @@ class FavoriteController extends ChangeNotifier {
           _restoreCount(dramaId, previousCount);
         }
         if (cards.any((drama) => drama.id == dramaId)) {
-          cards = cards.where((drama) => drama.id != dramaId).toList();
-          total = total > 0 ? total - 1 : 0;
-          hasMore = cards.length < total;
+          setItems(cards.where((drama) => drama.id != dramaId).toList());
+          setTotal(total - 1);
         }
       }
       notify();
       return true;
     } catch (failure) {
       // 回滚
-      cards = previousCards;
-      total = previousTotal;
-      hasMore = previousHasMore;
+      setItems(previousCards);
+      setTotal(previousTotal);
       if (wasSaved) {
         _saved.add(dramaId);
       } else {
@@ -235,27 +174,24 @@ class FavoriteController extends ChangeNotifier {
     if (ids.isEmpty) return true;
     final previousCards = cards;
     final previousTotal = total;
-    final previousHasMore = hasMore;
     final removed = cards.where((drama) => ids.contains(drama.id)).toList();
     if (removed.isEmpty) return true;
     final previousCounts = {
       for (final drama in removed) drama.id: _favoriteCounts[drama.id],
     };
-    cards = cards.where((drama) => !ids.contains(drama.id)).toList();
+    setItems(cards.where((drama) => !ids.contains(drama.id)).toList());
     for (final id in ids) {
       _saved.remove(id);
       _stepCount(id, -1);
     }
-    total = total > removed.length ? total - removed.length : 0;
-    hasMore = cards.length < total;
+    setTotal(total - removed.length);
     notify();
     try {
       await _repository.removeMany(dramaIds);
       return true;
     } catch (_) {
-      cards = previousCards;
-      total = previousTotal;
-      hasMore = previousHasMore;
+      setItems(previousCards);
+      setTotal(previousTotal);
       for (final drama in removed) {
         _saved.add(drama.id);
       }
@@ -276,9 +212,8 @@ class FavoriteController extends ChangeNotifier {
     _saved.remove(dramaId);
     _stepCount(dramaId, -1);
     final next = [...cards]..removeAt(index);
-    cards = next;
-    total = total > 0 ? total - 1 : 0;
-    hasMore = cards.length < total;
+    setItems(next);
+    setTotal(total - 1);
     notify();
     try {
       await _repository.remove(dramaId);
@@ -289,11 +224,10 @@ class FavoriteController extends ChangeNotifier {
         index > restored.length ? restored.length : index,
         removed,
       );
-      cards = restored;
+      setItems(restored);
       _saved.add(dramaId);
       _restoreCount(dramaId, previousCount);
-      total += 1;
-      hasMore = cards.length < total;
+      setTotal(total + 1);
       notify();
       return false;
     }
@@ -301,27 +235,11 @@ class FavoriteController extends ChangeNotifier {
 
   /// 退出登录时清空：收藏状态属于账号，不能跨账号串联。
   void clear() {
-    _requestSeq += 1;
+    resetPaging();
     _saved.clear();
-    cards = const [];
-    total = 0;
-    loading = false;
-    hasMore = false;
-    loadingMore = false;
-    loadMoreError = null;
-    error = null;
-    _pageIndex = 0;
     notify();
   }
 
-  List<Drama> _uniqueCards(List<Drama> source) {
-    final seen = <String>{};
-    return [
-      for (final drama in source)
-        if (seen.add(drama.id)) drama,
-    ];
-  }
-
   void _rememberCardCounts(List<Drama> dramas) {
     for (final drama in dramas) {
       final count = drama.favoriteCount;
@@ -345,10 +263,4 @@ class FavoriteController extends ChangeNotifier {
       _favoriteCounts[dramaId] = count;
     }
   }
-
-  @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
-  }
 }

lib/core/data/services/home_feed_controller.dart

@@ -1,223 +1,41 @@
 // Author: fruit.com.cn
 
-import 'dart:async';
-
-import 'package:flutter/foundation.dart';
-
 import '../../data/models/drama.dart';
+import '../../data/models/feed_page.dart';
 import '../../data/repositories/catalog_repository.dart';
 import '../../../pages/home/home_feed_channel.dart';
+import 'channel_feed_controller.dart';
 
 /// 首页内容类型频道状态：每频道独立缓存、刷新和游标分页。
-class HomeFeedController extends ChangeNotifier {
-  HomeFeedController(
-    this._repository, {
-    this.requestTimeout = defaultRequestTimeout,
-  }) : _states = {
-         for (final channel in HomeFeedChannel.values)
-           channel: _ChannelFeedState(),
-       };
-
-  static const int pageSize = 20;
-  static const Duration defaultRequestTimeout = Duration(seconds: 10);
+class HomeFeedController extends ChannelFeedController<HomeFeedChannel> {
+  HomeFeedController(this._repository, {super.requestTimeout})
+    : super(HomeFeedChannel.recommend);
 
   final CatalogRepository _repository;
-  final Duration requestTimeout;
-  final Map<HomeFeedChannel, _ChannelFeedState> _states;
-  HomeFeedChannel _channel = HomeFeedChannel.recommend;
-  bool _disposed = false;
 
-  HomeFeedChannel get channel => _channel;
-  String? get lastError => _state(_channel).lastError;
-  List<Drama> get dramas => _state(_channel).dramas;
-  String? get cursor => _state(_channel).cursor;
-  bool get hasMore => _state(_channel).hasMore;
-  bool get loaded => _state(_channel).loaded;
-  bool get isLoading => _state(_channel).loading;
-  bool get loadingMore => _state(_channel).loadingMore;
-  bool get loadingFirstPage => !loaded && _state(_channel).loading;
+  HomeFeedChannel get channel => currentKey;
 
   /// 用首页聚合接口打平的数据填充推荐首屏，不发起网络请求。
-  void seedRecommend(List<Drama> dramas) {
-    final state = _state(HomeFeedChannel.recommend);
-    state
-      ..requestSeq = state.requestSeq + 1
-      ..dramas = List.unmodifiable(dramas)
-      ..cursor = null
-      ..hasMore = false
-      ..loaded = true
-      ..loading = false
-      ..loadingMore = false
-      ..lastError = null
-      ..inFlight = null;
-    _notifyIfCurrent(HomeFeedChannel.recommend);
-  }
+  void seedRecommend(List<Drama> dramas) =>
+      seedKey(HomeFeedChannel.recommend, dramas);
 
   /// 后台预取漫剧与真人剧首屏，不切换频道，也不影响当前列表。
   Future<void> prefetchChannels() async {
     await Future.wait([
-      _prefetchChannel(HomeFeedChannel.anime),
-      _prefetchChannel(HomeFeedChannel.live),
+      prefetchKey(HomeFeedChannel.anime),
+      prefetchKey(HomeFeedChannel.live),
     ]);
   }
 
   /// 同步切到目标频道；有缓存先渲染，无缓存时复用或等待在飞请求。
-  Future<void> selectChannel(HomeFeedChannel next) async {
-    if (next == _channel) return;
-    _channel = next;
-    _notify();
-    final state = _state(next);
-    if (state.dramas.isNotEmpty) {
-      if (state.skipNextRefresh) {
-        state.skipNextRefresh = false;
-      } else if (!state.loading) {
-        unawaited(_refresh(next, keepData: true));
-      }
-      return;
-    }
-    if (state.loading) {
-      final inFlight = state.inFlight;
-      if (inFlight != null) await inFlight;
-      state.skipNextRefresh = false;
-      return;
-    }
-    await _refresh(next, keepData: false);
-  }
-
-  /// 刷新当前频道，失败时保留旧数据。
-  Future<bool> refreshCurrent() async {
-    final state = _state(_channel);
-    if (state.loading) {
-      return await state.inFlight ?? false;
-    }
-    return _refresh(_channel, keepData: true);
-  }
-
-  /// 加载当前频道下一页并去重追加。
-  Future<void> loadMore() async {
-    final channel = _channel;
-    final state = _state(channel);
-    if (!state.hasMore || state.loadingMore || state.cursor == null) return;
-    final seq = ++state.requestSeq;
-    state.loadingMore = true;
-    _notifyIfCurrent(channel);
-    try {
-      final page = await _repository
-          .fetchFeed(
-            types: channel.apiTypes,
-            cursor: state.cursor,
-            size: pageSize,
-          )
-          .timeout(requestTimeout);
-      if (!_acceptSequence(channel, seq)) return;
-      final seen = state.dramas.map((drama) => drama.id).toSet();
-      final appended = page.dramas
-          .where((drama) => seen.add(drama.id))
-          .toList();
-      state
-        ..dramas = List.unmodifiable([...state.dramas, ...appended])
-        ..cursor = page.nextCursor
-        ..hasMore = page.hasMore
-        ..loaded = true
-        ..lastError = null;
-    } catch (error) {
-      if (_acceptSequence(channel, seq)) {
-        state.lastError = error.toString();
-      }
-    } finally {
-      state.loadingMore = false;
-      _notifyIfCurrent(channel);
-    }
-  }
-
-  Future<bool> _refresh(HomeFeedChannel channel, {required bool keepData}) {
-    final state = _state(channel);
-    final operation = _performRefresh(channel, keepData: keepData);
-    state.inFlight = operation;
-    unawaited(_clearInFlight(state, operation));
-    return operation;
-  }
-
-  Future<void> _prefetchChannel(HomeFeedChannel channel) async {
-    final state = _state(channel);
-    if (state.loaded || state.loading) return;
-    final success = await _refresh(channel, keepData: false);
-    if (success && !_disposed) state.skipNextRefresh = true;
-  }
-
-  Future<bool> _performRefresh(
-    HomeFeedChannel channel, {
-    required bool keepData,
-  }) async {
-    final state = _state(channel);
-    final seq = ++state.requestSeq;
-    state
-      ..loading = true
-      ..lastError = null;
-    _notifyIfCurrent(channel);
-    try {
-      final page = await _repository
-          .fetchFeed(types: channel.apiTypes, size: pageSize)
-          .timeout(requestTimeout);
-      if (!_acceptSequence(channel, seq)) return false;
-      state
-        ..dramas = List.unmodifiable(page.dramas)
-        ..cursor = page.nextCursor
-        ..hasMore = page.hasMore
-        ..loaded = true
-        ..loading = false
-        ..lastError = null;
-      _notifyIfCurrent(channel);
-      return true;
-    } catch (error) {
-      if (!_acceptSequence(channel, seq)) return false;
-      if (!keepData) state.dramas = const [];
-      state
-        ..loaded = true
-        ..loading = false
-        ..lastError = error.toString();
-      _notifyIfCurrent(channel);
-      return false;
-    }
-  }
-
-  Future<void> _clearInFlight(
-    _ChannelFeedState state,
-    Future<bool> operation,
-  ) async {
-    await operation;
-    if (identical(state.inFlight, operation)) state.inFlight = null;
-  }
-
-  _ChannelFeedState _state(HomeFeedChannel channel) => _states[channel]!;
-
-  bool _acceptSequence(HomeFeedChannel channel, int seq) =>
-      !_disposed && _state(channel).requestSeq == seq;
-
-  void _notifyIfCurrent(HomeFeedChannel channel) {
-    if (!_disposed && channel == _channel) _notify();
-  }
-
-  void _notify() {
-    if (!_disposed) notifyListeners();
-  }
+  Future<void> selectChannel(HomeFeedChannel next) => selectKey(next);
 
   @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
+  Future<FeedPage> fetchPage(HomeFeedChannel key, {String? cursor}) {
+    return _repository.fetchFeed(
+      types: key.apiTypes,
+      cursor: cursor,
+      size: ChannelFeedController.pageSize,
+    );
   }
 }
-
-class _ChannelFeedState {
-  List<Drama> dramas = const [];
-  String? cursor;
-  bool hasMore = true;
-  bool loaded = false;
-  bool loading = false;
-  bool loadingMore = false;
-  String? lastError;
-  int requestSeq = 0;
-  Future<bool>? inFlight;
-  bool skipNextRefresh = false;
-}

lib/core/data/services/notices_controller.dart

@@ -1,118 +1,30 @@
 // Author: fruit.com.cn
 
-import 'package:flutter/foundation.dart';
-
 import '../models/notice.dart';
-import '../remote/api_client.dart';
+import '../models/page_result.dart';
 import '../repositories/notice_repository.dart';
+import 'paged_list_controller.dart';
 
-/// Pagination and state controller for the anonymous notices page.
-class NoticesController extends ChangeNotifier {
-  NoticesController(this._repository, {this.pageSize = 20});
+/// 公告页状态：匿名可看，按页追加。
+class NoticesController extends PagedListController<AppNotice> {
+  NoticesController(this._repository, {this.pageSize = 20})
+    : super(fallbackErrorKey: 'noticesLoadFailed');
 
   final NoticeRepository _repository;
   final int pageSize;
-  final List<AppNotice> _notices = [];
-  int _pageIndex = 0;
-  int _total = 0;
-  bool _disposed = false;
-  bool loading = false;
-  bool loadingMore = false;
-  bool refreshing = false;
-  String? error;
-  String? loadMoreError;
 
-  /// Loaded notices in server order.
-  List<AppNotice> get notices => List.unmodifiable(_notices);
+  /// 当前已加载公告（服务端顺序）。
+  List<AppNotice> get notices => items;
 
-  /// Whether another page is expected from the latest total.
-  bool get hasMore => _notices.length < _total;
-
-  /// Loads the first page.
-  Future<void> load() async {
-    loading = true;
-    error = null;
-    loadMoreError = null;
-    _notify();
-    await _replaceFirstPage();
-    loading = false;
-    _notify();
-  }
-
-  /// Refreshes from page one while keeping the current page visible.
-  Future<void> refresh() async {
-    refreshing = true;
-    error = null;
-    loadMoreError = null;
-    _notify();
-    await _replaceFirstPage();
-    refreshing = false;
-    _notify();
-  }
-
-  /// Appends the next page when loaded count is below total.
-  Future<void> loadMore() async {
-    if (loading || loadingMore || refreshing || !hasMore) return;
-    loadingMore = true;
-    loadMoreError = null;
-    _notify();
-    try {
-      final page = await _repository.page(
-        pageIndex: _pageIndex + 1,
-        pageSize: pageSize,
-      );
-      _appendUnique(page.notices);
-      _pageIndex++;
-      _total = page.total;
-    } catch (failure, stackTrace) {
-      debugPrint('[NoticesController] load more failed: $failure');
-      debugPrintStack(
-        stackTrace: stackTrace,
-        label: '[NoticesController] load more failed',
-      );
-      loadMoreError = _message(failure) ?? 'noticesLoadFailed';
-    } finally {
-      loadingMore = false;
-      _notify();
-    }
-  }
-
-  Future<void> _replaceFirstPage() async {
-    try {
-      final page = await _repository.page(pageIndex: 1, pageSize: pageSize);
-      if (_disposed) return;
-      _notices
-        ..clear()
-        ..addAll(page.notices);
-      _pageIndex = 1;
-      _total = page.total;
-    } catch (failure, stackTrace) {
-      debugPrint('[NoticesController] load failed: $failure');
-      debugPrintStack(
-        stackTrace: stackTrace,
-        label: '[NoticesController] load failed',
-      );
-      if (!_disposed) error = _message(failure) ?? 'noticesLoadFailed';
-    }
-  }
-
-  void _appendUnique(List<AppNotice> incoming) {
-    final ids = _notices.map((notice) => notice.id).toSet();
-    for (final notice in incoming) {
-      if (ids.add(notice.id)) _notices.add(notice);
-    }
-  }
-
-  String? _message(Object failure) =>
-      failure is ApiException ? failure.message : null;
-
-  void _notify() {
-    if (!_disposed) notifyListeners();
+  @override
+  Future<PageResult<AppNotice>> fetchPage(int pageIndex) async {
+    final page = await _repository.page(
+      pageIndex: pageIndex,
+      pageSize: pageSize,
+    );
+    return PageResult(total: page.total, list: page.notices);
   }
 
   @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
-  }
+  String itemKey(AppNotice item) => item.id;
 }

lib/core/data/services/paged_list_controller.dart

@@ -0,0 +1,216 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/foundation.dart';
+
+import '../models/page_result.dart';
+import '../remote/api_client.dart';
+
+/// 分页列表控制器基类（`pageIndex` + `total` 模式）。
+///
+/// 收藏、观看记录、剧单、公告四个页面的分页逻辑此前各写一份：请求序号防串台、
+/// loading/loadingMore 互斥、跨页去重追加、hasMore 判定 —— 修一处 bug 要同步
+/// 抄四遍。这里收口成模板方法，子类只回答两件事：怎么取一页、怎么标识一条。
+abstract class PagedListController<T> extends ChangeNotifier {
+  PagedListController({this.fallbackErrorKey, this.dedupe = true});
+
+  /// 非 [ApiException] 的失败文案 key（页面用 `errorText` 翻译）。
+  final String? fallbackErrorKey;
+
+  /// 是否跨页按 [itemKey] 去重。
+  final bool dedupe;
+
+  List<T> _items = const [];
+  int _pageIndex = 0;
+  int _total = 0;
+  int _requestSeq = 0;
+  bool _disposed = false;
+
+  bool loading = false;
+  bool loadingMore = false;
+  bool refreshing = false;
+  bool loaded = false;
+  String? error;
+  String? loadMoreError;
+  int? lastErrorCode;
+
+  /// 当前已加载条目（按服务端顺序）。
+  List<T> get items => _items;
+  int get total => _total;
+  int get pageIndex => _pageIndex;
+
+  /// 已加载数未达总数即视为还有下一页。
+  bool get hasMore => _items.length < _total;
+
+  @protected
+  bool get isDisposed => _disposed;
+
+  /// 子类实现：取第 [pageIndex] 页（从 1 开始）。
+  @protected
+  Future<PageResult<T>> fetchPage(int pageIndex);
+
+  /// 子类实现：跨页去重用的稳定标识。
+  @protected
+  String itemKey(T item);
+
+  /// 失败文案：默认优先用后端消息，其次 [fallbackErrorKey]。
+  @protected
+  String? errorKeyFor(Object failure) {
+    if (failure is ApiException && failure.message.isNotEmpty) {
+      return failure.message;
+    }
+    return fallbackErrorKey;
+  }
+
+  /// 第一页替换完成后的同步钩子（如同步收藏集合）。
+  @protected
+  void onItemsReplaced() {}
+
+  /// 每页数据写入后的异步钩子（如补取详情）。
+  @protected
+  Future<void> onPageLoaded(List<T> added) async {}
+
+  /// 子类做局部乐观更新时改写列表。
+  @protected
+  void setItems(List<T> next) => _items = next;
+
+  /// 子类做局部乐观更新时改写总数。
+  @protected
+  void setTotal(int value) => _total = value < 0 ? 0 : value;
+
+  /// 子类回滚分页游标。
+  @protected
+  void restorePageIndex(int value) => _pageIndex = value;
+
+  /// 子类清空/重置分页状态，并让在飞请求失效。
+  @protected
+  void resetPaging() {
+    _requestSeq += 1;
+    _items = const [];
+    _total = 0;
+    _pageIndex = 0;
+    loading = false;
+    loadingMore = false;
+    refreshing = false;
+    loaded = false;
+    error = null;
+    loadMoreError = null;
+    lastErrorCode = null;
+  }
+
+  /// 让在飞请求失效（切换身份、清空等）。
+  @protected
+  void invalidateRequests() => _requestSeq += 1;
+
+  /// 重新拉第一页；失败时保留旧数据。
+  Future<void> load() => _fetchFirstPage(refresh: false);
+
+  /// 刷新第一页，且不清空当前列表（滚动位置不跳）。
+  Future<void> refresh() => _fetchFirstPage(refresh: true);
+
+  /// 第一页请求会抢占在飞的分页请求：被抢占的一方不再复位标志，
+  /// 所以三个 loading 标志必须在这里统一接管，否则会永远停在 true。
+  Future<void> _fetchFirstPage({required bool refresh}) async {
+    final request = ++_requestSeq;
+    loading = !refresh;
+    refreshing = refresh;
+    loadingMore = false;
+    error = null;
+    loadMoreError = null;
+    lastErrorCode = null;
+    notify();
+    try {
+      final page = await fetchPage(1);
+      if (_stale(request)) return;
+      final list = _unique(page.list);
+      _items = list;
+      _total = page.total;
+      _pageIndex = 1;
+      loaded = true;
+      onItemsReplaced();
+      notify();
+      await onPageLoaded(list);
+    } catch (failure) {
+      if (!_stale(request)) _recordError(failure, more: false);
+    } finally {
+      if (!_stale(request)) {
+        loading = false;
+        refreshing = false;
+        notify();
+      }
+    }
+  }
+
+  /// 追加下一页；刷新中、加载中或没有更多时忽略。
+  Future<void> loadMore() async {
+    if (loading || loadingMore || refreshing || !hasMore) return;
+    final request = ++_requestSeq;
+    loadingMore = true;
+    loadMoreError = null;
+    lastErrorCode = null;
+    notify();
+    try {
+      final page = await fetchPage(_pageIndex + 1);
+      if (_stale(request)) return;
+      // 关掉去重的列表（如剧单）按服务端顺序原样追加，不做跨页过滤。
+      final appended = dedupe ? _newItems(page.list) : page.list;
+      _items = [..._items, ...appended];
+      // 服务端 total 偏大但已翻到空页时，按已加载数收口，避免反复请求空页。
+      _total = page.list.isEmpty ? _items.length : page.total;
+      _pageIndex += 1;
+      notify();
+      await onPageLoaded(appended);
+    } catch (failure) {
+      if (!_stale(request)) _recordError(failure, more: true);
+    } finally {
+      if (!_stale(request)) {
+        loadingMore = false;
+        notify();
+      }
+    }
+  }
+
+  List<T> _unique(List<T> source) {
+    if (!dedupe) return source;
+    final seen = <String>{};
+    return [
+      for (final item in source)
+        if (seen.add(itemKey(item))) item,
+    ];
+  }
+
+  /// 追加页去重：既要过滤页内重复，也要过滤与已加载条目重复。
+  List<T> _newItems(List<T> source) {
+    final known = _items.map(itemKey).toSet();
+    return [
+      for (final item in source)
+        if (known.add(itemKey(item))) item,
+    ];
+  }
+
+  void _recordError(Object failure, {required bool more}) {
+    if (kDebugMode) {
+      final phase = more ? 'load more' : 'load';
+      debugPrint('[$runtimeType] $phase failed: $failure');
+    }
+    final message = errorKeyFor(failure);
+    if (more) {
+      loadMoreError = message;
+    } else {
+      error = message;
+    }
+    if (failure is ApiException) lastErrorCode = failure.code;
+  }
+
+  bool _stale(int request) => _disposed || request != _requestSeq;
+
+  @protected
+  void notify() {
+    if (!_disposed) notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _disposed = true;
+    super.dispose();
+  }
+}

lib/core/data/services/playback_position_cache.dart

@@ -33,10 +33,15 @@ class PlaybackPositionCache {
   PlaybackPositionCache({
     DateTime Function()? now,
     this.maxAge = _defaultMaxAge,
+    this.maxEntries = defaultMaxEntries,
   }) : _now = now ?? DateTime.now;
 
+  /// 最多保留的集数：长会话连看几十部剧也不至于让 Map 无限增长。
+  static const int defaultMaxEntries = 100;
+
   final DateTime Function() _now;
   final Duration maxAge;
+  final int maxEntries;
   final Map<String, CachedPlaybackPosition> _positions = {};
 
   /// 保存最近有效播放位置；零位置不会覆盖已有记录。
@@ -57,6 +62,24 @@ class PlaybackPositionCache {
       duration: duration,
       updatedAt: _now(),
     );
+    _evictOverflow();
+  }
+
+  /// 超出上限时按写入时间淘汰最旧的一条，避免长会话内存只增不减。
+  void _evictOverflow() {
+    while (maxEntries > 0 && _positions.length > maxEntries) {
+      String? oldestKey;
+      DateTime? oldestAt;
+      for (final entry in _positions.entries) {
+        final at = entry.value.updatedAt;
+        if (oldestAt == null || at.isBefore(oldestAt)) {
+          oldestAt = at;
+          oldestKey = entry.key;
+        }
+      }
+      if (oldestKey == null) return;
+      _positions.remove(oldestKey);
+    }
   }
 
   /// 读取同剧同集且未过期的最近位置。

lib/core/data/services/playlist_controller.dart

@@ -2,71 +2,32 @@
 
 import 'package:flutter/foundation.dart';
 
+import '../models/page_result.dart';
 import '../models/playlist_detail.dart';
 import '../remote/catalog_api.dart';
 import '../repositories/playlist_repository.dart';
+import 'paged_list_controller.dart';
 
 /// 推荐页剧单：已启用剧单及其短剧卡片。
-class PlaylistController extends ChangeNotifier {
-  PlaylistController(this._repository);
-
-  final PlaylistRepository _repository;
+class PlaylistController extends PagedListController<PlaylistDetail> {
+  PlaylistController(this._repository)
+    : super(fallbackErrorKey: 'playlistsError', dedupe: false);
 
   static const int pageSize = CatalogApi.playlistPageSize;
 
-  List<PlaylistDetail> items = const [];
-  bool loading = false;
-  bool loadingMore = false;
-  bool loaded = false;
-  bool hasMore = false;
-  String? error;
-  int _pageIndex = 1;
-  bool _disposed = false;
+  final PlaylistRepository _repository;
 
-  /// 从第一页重新拉取。失败保留错误态，成功后替换本地缓存。
-  Future<void> load() async {
-    loading = true;
-    error = null;
-    _notify();
-    try {
-      final page = await _repository.fetchPlaylists(pageSize: pageSize);
-      items = page.list;
-      _pageIndex = 1;
-      hasMore = items.length < page.total;
-      loaded = true;
-    } catch (exception) {
-      error = 'playlistsError';
-      if (kDebugMode) debugPrint('[playlist] $exception');
-    } finally {
-      loading = false;
-      _notify();
-    }
+  @override
+  Future<PageResult<PlaylistDetail>> fetchPage(int pageIndex) {
+    return _repository.fetchPlaylists(pageIndex: pageIndex, pageSize: pageSize);
   }
 
-  /// 滚到底时追加下一页。没有更多或正在请求时直接返回。
-  Future<void> loadMore() async {
-    if (loading || loadingMore || !hasMore) return;
-    loadingMore = true;
-    _notify();
-    try {
-      final page = await _repository.fetchPlaylists(
-        pageIndex: _pageIndex + 1,
-        pageSize: pageSize,
-      );
-      if (page.list.isEmpty) {
-        hasMore = false;
-      } else {
-        items = [...items, ...page.list];
-        _pageIndex += 1;
-        hasMore = items.length < page.total;
-      }
-    } catch (exception) {
-      if (kDebugMode) debugPrint('[playlist] more $exception');
-    } finally {
-      loadingMore = false;
-      _notify();
-    }
-  }
+  @override
+  String itemKey(PlaylistDetail item) => item.id;
+
+  /// 剧单页把失败统一收敛成固定 key，由页面翻译成文案。
+  @override
+  String? errorKeyFor(Object failure) => 'playlistsError';
 
   /// 打开某一剧单时再取一次详情；失败则回落到列表里已有的那条。
   Future<PlaylistDetail> detail(
@@ -94,14 +55,4 @@ class PlaylistController extends ChangeNotifier {
       );
     }
   }
-
-  void _notify() {
-    if (!_disposed) notifyListeners();
-  }
-
-  @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
-  }
 }

lib/core/data/services/sprite_thumbnail_asset_loader.dart

@@ -8,7 +8,8 @@ import 'package:dio/dio.dart';
 
 import '../../config/app_config.dart';
 
-const int spriteThumbnailDecodeMaxDimension = 2048;
+/// 雪碧图解码上限：擦洗预览只占很小一块区域，2048 会让单张位图膨胀到 16MB。
+const int spriteThumbnailDecodeMaxDimension = 1024;
 
 /// VTT 资源拒绝访问，服务层据此清缓存并重试一次。
 class SpriteThumbnailForbiddenException implements Exception {

lib/core/data/services/theater_feed_controller.dart

@@ -1,187 +1,27 @@
 // Author: fruit.com.cn
 
-import 'dart:async';
-
-import 'package:flutter/foundation.dart';
-
-import '../../data/models/drama.dart';
+import '../../data/models/feed_page.dart';
 import '../../data/repositories/catalog_repository.dart';
+import 'channel_feed_controller.dart';
 
 /// 剧场页服务端分类列表：按 categoryId 独立缓存、刷新和游标分页。
-class TheaterFeedController extends ChangeNotifier {
-  TheaterFeedController(
-    this._repository, {
-    this.requestTimeout = defaultRequestTimeout,
-  });
-
-  static const int pageSize = 20;
-  static const Duration defaultRequestTimeout = Duration(seconds: 10);
+class TheaterFeedController extends ChannelFeedController<String?> {
+  TheaterFeedController(this._repository, {super.requestTimeout})
+    : super(null, initiallySelected: false);
 
   final CatalogRepository _repository;
-  final Duration requestTimeout;
-  final Map<String?, _CategoryFeedState> _states = {};
-  String? _categoryId;
-  bool _initialized = false;
-  bool _disposed = false;
 
-  String? get categoryId => _categoryId;
-  String? get lastError => _state(_categoryId).lastError;
-  List<Drama> get dramas => _state(_categoryId).dramas;
-  String? get cursor => _state(_categoryId).cursor;
-  bool get hasMore => _state(_categoryId).hasMore;
-  bool get loaded => _state(_categoryId).loaded;
-  bool get loadingMore => _state(_categoryId).loadingMore;
-  bool get loadingFirstPage => !loaded && _state(_categoryId).loading;
+  String? get categoryId => currentKey;
 
   /// 同步切换分类；有缓存先渲染，无缓存时等待或发起首屏请求。
-  Future<void> select(String? next) async {
-    if (_initialized && next == _categoryId) return;
-    _categoryId = next;
-    _initialized = true;
-    _notify();
-
-    final state = _state(next);
-    if (state.dramas.isNotEmpty) {
-      if (!state.loading) {
-        unawaited(_refresh(next, keepData: true));
-      }
-      return;
-    }
-    if (state.loading) {
-      final inFlight = state.inFlight;
-      if (inFlight != null) await inFlight;
-      return;
-    }
-    await _refresh(next, keepData: false);
-  }
-
-  /// 刷新当前分类；失败时保留已有列表。
-  Future<bool> refreshCurrent() async {
-    final state = _state(_categoryId);
-    if (state.loading) {
-      return await state.inFlight ?? false;
-    }
-    return _refresh(_categoryId, keepData: true);
-  }
-
-  /// 加载当前分类下一页并去重追加。
-  Future<void> loadMore() async {
-    final categoryId = _categoryId;
-    final state = _state(categoryId);
-    if (!state.hasMore || state.loadingMore || state.cursor == null) return;
-    final sequence = ++state.requestSeq;
-    state.loadingMore = true;
-    _notifyIfCurrent(categoryId);
-    try {
-      final page = await _repository
-          .fetchFeed(
-            categoryId: categoryId,
-            cursor: state.cursor,
-            size: pageSize,
-          )
-          .timeout(requestTimeout);
-      if (!_acceptSequence(categoryId, sequence)) return;
-      final seen = state.dramas.map((drama) => drama.id).toSet();
-      final appended = page.dramas
-          .where((drama) => seen.add(drama.id))
-          .toList();
-      state
-        ..dramas = List.unmodifiable([...state.dramas, ...appended])
-        ..cursor = page.nextCursor
-        ..hasMore = page.hasMore
-        ..loaded = true
-        ..lastError = null;
-    } catch (error) {
-      if (_acceptSequence(categoryId, sequence)) {
-        state.lastError = error.toString();
-      }
-    } finally {
-      state.loadingMore = false;
-      _notifyIfCurrent(categoryId);
-    }
-  }
-
-  Future<bool> _refresh(String? categoryId, {required bool keepData}) {
-    final state = _state(categoryId);
-    final operation = _performRefresh(categoryId, keepData: keepData);
-    state.inFlight = operation;
-    unawaited(_clearInFlight(state, operation));
-    return operation;
-  }
-
-  Future<bool> _performRefresh(
-    String? categoryId, {
-    required bool keepData,
-  }) async {
-    final state = _state(categoryId);
-    final sequence = ++state.requestSeq;
-    state
-      ..loading = true
-      ..lastError = null;
-    _notifyIfCurrent(categoryId);
-    try {
-      final page = await _repository
-          .fetchFeed(categoryId: categoryId, size: pageSize)
-          .timeout(requestTimeout);
-      if (!_acceptSequence(categoryId, sequence)) return false;
-      state
-        ..dramas = List.unmodifiable(page.dramas)
-        ..cursor = page.nextCursor
-        ..hasMore = page.hasMore
-        ..loaded = true
-        ..loading = false
-        ..lastError = null;
-      _notifyIfCurrent(categoryId);
-      return true;
-    } catch (error) {
-      if (!_acceptSequence(categoryId, sequence)) return false;
-      if (!keepData) state.dramas = const [];
-      state
-        ..loaded = true
-        ..loading = false
-        ..lastError = error.toString();
-      _notifyIfCurrent(categoryId);
-      return false;
-    }
-  }
-
-  Future<void> _clearInFlight(
-    _CategoryFeedState state,
-    Future<bool> operation,
-  ) async {
-    await operation;
-    if (identical(state.inFlight, operation)) state.inFlight = null;
-  }
-
-  _CategoryFeedState _state(String? categoryId) =>
-      _states.putIfAbsent(categoryId, _CategoryFeedState.new);
-
-  bool _acceptSequence(String? categoryId, int sequence) =>
-      !_disposed && _state(categoryId).requestSeq == sequence;
-
-  void _notifyIfCurrent(String? categoryId) {
-    if (!_disposed && categoryId == _categoryId) _notify();
-  }
-
-  void _notify() {
-    if (!_disposed) notifyListeners();
-  }
+  Future<void> select(String? next) => selectKey(next);
 
   @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
+  Future<FeedPage> fetchPage(String? key, {String? cursor}) {
+    return _repository.fetchFeed(
+      categoryId: key,
+      cursor: cursor,
+      size: ChannelFeedController.pageSize,
+    );
   }
 }
-
-class _CategoryFeedState {
-  List<Drama> dramas = const [];
-  String? cursor;
-  bool hasMore = true;
-  bool loaded = false;
-  bool loading = false;
-  bool loadingMore = false;
-  String? lastError;
-  int requestSeq = 0;
-  Future<bool>? inFlight;
-}

lib/core/data/services/unlocked_episode_registry.dart

@@ -0,0 +1,22 @@
+// Author: fruit.com.cn
+
+/// 本次登录期内已确认可播的收费集。
+///
+/// 解锁本身是服务端行为（`POST /app/episodes/{id}/unlock` 成功即生效），
+/// 客户端只需要记住「这一集不用再挡」。若不记住，退出播放页再进来会先闪
+/// 一次锁定态，且会被 [PlaybackSession.selectLocked] 提前释放播放器。
+///
+/// 生命周期跟随账号：登录态变化时由 `app.dart` 调用 [clear]，避免换账号后
+/// 沿用上一个人的解锁结论。
+class UnlockedEpisodeRegistry {
+  final Set<String> _episodeIds = <String>{};
+
+  bool contains(String episodeId) => _episodeIds.contains(episodeId);
+
+  void markUnlocked(String episodeId) {
+    if (episodeId.isEmpty) return;
+    _episodeIds.add(episodeId);
+  }
+
+  void clear() => _episodeIds.clear();
+}

lib/core/data/services/watch_records_controller.dart

@@ -3,23 +3,26 @@
 import 'package:flutter/foundation.dart';
 
 import '../models/drama.dart';
+import '../models/page_result.dart';
 import '../models/watch_progress.dart';
 import '../models/watch_record.dart';
 import '../remote/api_client.dart';
 import '../repositories/catalog_repository.dart';
 import '../repositories/watch_history_repository.dart';
+import 'paged_list_controller.dart';
 
 /// 独立观看记录页状态。
 ///
 /// 分页接口提供标题/封面/集号；详情按 dramaId 去重后补取，供点击播放使用。
-class WatchRecordsController extends ChangeNotifier {
+class WatchRecordsController extends PagedListController<WatchRecord> {
   factory WatchRecordsController({
     required WatchHistoryRepository history,
     required CatalogRepository catalog,
     int pageSize = defaultPageSize,
   }) => WatchRecordsController._(history, catalog, pageSize);
 
-  WatchRecordsController._(this._history, this._catalog, this.pageSize);
+  WatchRecordsController._(this._history, this._catalog, this.pageSize)
+    : super(fallbackErrorKey: 'progressError');
 
   static const int defaultPageSize = 20;
   static const int detailConcurrency = 4;
@@ -29,98 +32,32 @@ class WatchRecordsController extends ChangeNotifier {
   final int pageSize;
   final Map<String, Drama> _detailCache = {};
 
-  List<WatchRecord> records = const [];
-  int total = 0;
-  bool loading = false;
-  bool loadingMore = false;
-  bool hasMore = false;
   bool clearing = false;
-  String? error;
-  String? loadMoreError;
   String? actionError;
-  int? lastErrorCode;
-  int _pageIndex = 0;
-  int _requestSeq = 0;
-  bool _disposed = false;
 
-  /// 加载最近记录并补齐详情；单条详情失败不拖垮整页。
-  Future<void> load() async {
-    final request = ++_requestSeq;
-    loading = true;
-    loadingMore = false;
-    error = null;
-    loadMoreError = null;
-    actionError = null;
-    lastErrorCode = null;
-    _notify();
-    try {
-      final page = await _history.recent(pageIndex: 1, pageSize: pageSize);
-      if (_disposed || request != _requestSeq) return;
-      records = _uniqueRecords(page.list);
-      total = page.total;
-      _pageIndex = 1;
-      hasMore = page.list.isNotEmpty && records.length < total;
-      _notify();
-      await _hydrate(records.map((record) => record.dramaId).toList());
-    } catch (failure, stackTrace) {
-      debugPrint(
-        '[WatchRecordsController] recent failed '
-        '${failure.runtimeType}: $failure',
-      );
-      debugPrintStack(
-        stackTrace: stackTrace,
-        label: '[WatchRecordsController] recent failed',
-      );
-      if (!_disposed && request == _requestSeq) {
-        error = failure is ApiException ? failure.message : 'progressError';
-        if (failure is ApiException) lastErrorCode = failure.code;
-      }
-    } finally {
-      if (!_disposed && request == _requestSeq) {
-        loading = false;
-        _notify();
-      }
-    }
+  /// 当前已加载记录（按服务端顺序）。
+  List<WatchRecord> get records => items;
+
+  @override
+  Future<PageResult<WatchRecord>> fetchPage(int pageIndex) async {
+    final page = await _history.recent(
+      pageIndex: pageIndex,
+      pageSize: pageSize,
+    );
+    return PageResult(total: page.total, list: _uniqueRecords(page.list));
   }
 
-  /// 追加下一页；刷新、加载中或无更多时忽略。
-  Future<void> loadMore() async {
-    if (loading || loadingMore || !hasMore) return;
-    final request = ++_requestSeq;
-    loadingMore = true;
-    loadMoreError = null;
-    lastErrorCode = null;
-    _notify();
-    try {
-      final page = await _history.recent(
-        pageIndex: _pageIndex + 1,
-        pageSize: pageSize,
-      );
-      if (_disposed || request != _requestSeq) return;
-      final known = records.map((record) => record.dramaId).toSet();
-      final appended = _uniqueRecords(
-        page.list,
-      ).where((record) => known.add(record.dramaId)).toList(growable: false);
-      records = [...records, ...appended];
-      total = page.total;
-      _pageIndex += 1;
-      hasMore = page.list.isNotEmpty && records.length < total;
-      _notify();
-      await _hydrate(appended.map((record) => record.dramaId).toList());
-    } catch (failure) {
-      if (!_disposed && request == _requestSeq) {
-        loadMoreError = failure is ApiException
-            ? failure.message
-            : 'progressError';
-        if (failure is ApiException) lastErrorCode = failure.code;
-      }
-    } finally {
-      if (!_disposed && request == _requestSeq) {
-        loadingMore = false;
-        _notify();
-      }
-    }
-  }
+  @override
+  String itemKey(WatchRecord item) => item.dramaId;
+
+  /// 第一页成功替换后清掉上一轮的操作错误（如删除失败提示）。
+  @override
+  void onItemsReplaced() => actionError = null;
+
+  /// 只补缺标题的详情，单条失败不拖垮整页。
+  @override
+  Future<void> onPageLoaded(List<WatchRecord> added) =>
+      _hydrate(added.map((record) => record.dramaId).toList());
 
   /// 只重试一条详情失败记录。
   Future<void> retryDetail(String dramaId) async {
@@ -130,9 +67,9 @@ class WatchRecordsController extends ChangeNotifier {
       index,
       records[index].copyWith(detailLoading: true, detailFailed: false),
     );
-    _notify();
+    notify();
     await _loadDetail(dramaId);
-    _notify();
+    notify();
   }
 
   /// 点击有标题的记录时再按需加载详情，避免列表阶段产生 N+1。
@@ -140,7 +77,7 @@ class WatchRecordsController extends ChangeNotifier {
     final cached = _detailCache[dramaId];
     if (cached != null) return cached;
     await _loadDetail(dramaId);
-    _notify();
+    notify();
     return _detailCache[dramaId];
   }
 
@@ -157,62 +94,66 @@ class WatchRecordsController extends ChangeNotifier {
     final index = _recordIndex(dramaId);
     if (index < 0) return true;
     final removed = records[index];
-    records = [...records]..removeAt(index);
-    total = total > 0 ? total - 1 : 0;
-    hasMore = records.length < total;
+    setItems([...records]..removeAt(index));
+    setTotal(total - 1);
     actionError = null;
     lastErrorCode = null;
-    _notify();
+    notify();
     try {
       await _history.remove(dramaId);
       return true;
     } catch (failure) {
-      final next = [...records];
+      final next = [...items];
       next.insert(index > next.length ? next.length : index, removed);
-      records = next;
-      total += 1;
-      hasMore = records.length < total;
+      setItems(next);
+      setTotal(total + 1);
       actionError = 'recordDeleteFailed';
       if (failure is ApiException) lastErrorCode = failure.code;
       return false;
     } finally {
-      _notify();
+      notify();
     }
   }
 
   /// 清空全部记录，先更新 UI，失败恢复原列表。
   Future<bool> clear() async {
     if (records.isEmpty) return true;
-    _requestSeq += 1;
+    invalidateRequests();
     final previous = records;
     final previousTotal = total;
-    final previousPageIndex = _pageIndex;
-    records = const [];
-    total = 0;
-    hasMore = false;
-    _pageIndex = 0;
+    final previousPageIndex = pageIndex;
+    setItems(const []);
+    setTotal(0);
+    restorePageIndex(0);
     loadingMore = false;
     clearing = true;
     actionError = null;
     lastErrorCode = null;
-    _notify();
+    notify();
     try {
       await _history.clear();
       return true;
     } catch (failure) {
-      records = previous;
-      total = previousTotal;
-      _pageIndex = previousPageIndex;
-      hasMore = records.length < total;
+      setItems(previous);
+      setTotal(previousTotal);
+      restorePageIndex(previousPageIndex);
       actionError = 'recordClearFailed';
       if (failure is ApiException) lastErrorCode = failure.code;
       return false;
     } finally {
       clearing = false;
-      _notify();
+      notify();
     }
   }
 
+  /// 切换账号/设备身份时清除内存数据，不删除服务端记录。
+  void reset() {
+    resetPaging();
+    clearing = false;
+    actionError = null;
+    notify();
+  }
+
   List<WatchRecord> _uniqueRecords(List<WatchProgress> recent) {
     final seen = <String>{};
     return [
@@ -239,7 +180,7 @@ class WatchRecordsController extends ChangeNotifier {
         ? queue.length
         : detailConcurrency;
     Future<void> worker() async {
-      while (queue.isNotEmpty && !_disposed) {
+      while (queue.isNotEmpty && !isDisposed) {
         await _loadDetail(queue.removeAt(0));
       }
     }
@@ -272,7 +213,7 @@ class WatchRecordsController extends ChangeNotifier {
     }
     try {
       final detail = await _catalog.fetchDrama(dramaId);
-      if (_disposed) return null;
+      if (isDisposed) return null;
       _detailCache[dramaId] = detail;
       final current = _recordIndex(dramaId);
       if (current < 0) return detail;
@@ -286,15 +227,18 @@ class WatchRecordsController extends ChangeNotifier {
       );
       return detail;
     } catch (failure, stackTrace) {
-      debugPrint(
-        '[WatchRecordsController] detail failed dramaId=$dramaId '
-        '${failure.runtimeType}: $failure',
-      );
-      debugPrintStack(
-        stackTrace: stackTrace,
-        label: '[WatchRecordsController] detail failed dramaId=$dramaId',
-      );
-      if (_disposed) return null;
+      // 弱网时详情会成批失败，release 下不需要逐条打堆栈。
+      if (kDebugMode) {
+        debugPrint(
+          '[WatchRecordsController] detail failed dramaId=$dramaId '
+          '${failure.runtimeType}: $failure',
+        );
+        debugPrintStack(
+          stackTrace: stackTrace,
+          label: '[WatchRecordsController] detail failed dramaId=$dramaId',
+        );
+      }
+      if (isDisposed) return null;
       final current = _recordIndex(dramaId);
       if (current < 0) return null;
       _replaceAt(
@@ -315,33 +259,6 @@ class WatchRecordsController extends ChangeNotifier {
   void _replaceAt(int index, WatchRecord record) {
     final next = [...records];
     next[index] = record;
-    records = next;
-  }
-
-  void _notify() {
-    if (!_disposed) notifyListeners();
-  }
-
-  /// 切换账号/设备身份时清除内存数据，不删除服务端记录。
-  void reset() {
-    _requestSeq += 1;
-    records = const [];
-    total = 0;
-    loading = false;
-    loadingMore = false;
-    hasMore = false;
-    clearing = false;
-    error = null;
-    loadMoreError = null;
-    actionError = null;
-    lastErrorCode = null;
-    _pageIndex = 0;
-    _notify();
-  }
-
-  @override
-  void dispose() {
-    _disposed = true;
-    super.dispose();
+    setItems(next);
   }
 }

lib/core/theme/app_dimens.dart

@@ -37,7 +37,7 @@ abstract final class AppDimens {
   static const double previewSectionTitle = 14;
   static const double chipFont = 10;
   static const double navLabel = 13;
-  static const double navLabelGap = 5;
+  static const double navLabelGap = 1;
 
   static const double buttonHeight = 48;
   static const double primaryButtonHeight = 52;
@@ -150,8 +150,8 @@ abstract final class AppDimens {
   static const double recommendSectionTitle = 17;
   static const double recommendSectionSubtitle = 11;
   static const double recommendSectionMore = 12;
-  // 封面 122*(4/3)≈163 + 间距6 + 两行标题39 + 间距6 + 标签13 ≈ 227。
-  static const double recommendRowHeight = 228;
+  // 封面 122*(4/3)≈163 + 间距6 + 两行标题≈42 + 间距6 + 标签≈13 ≈ 230，留 6 余量。
+  static const double recommendRowHeight = 236;
   static const double recommendCardWidth = 122;
 
   /// 首页热播榜。
@@ -189,9 +189,9 @@ abstract final class AppDimens {
   static const double followingAddIconStroke = 1.5;
   static const double followingGridGap = 6;
   static const double followingGridRowGap = 12;
-  // 单行标题 16*1.3=20.8 + 间距 6+4 + 副标题行高约 18.6 ≈ 49.4，留 0.6 余量；
-  // 按 48 估算在副标题行高偏高的字体下会溢出 1~2px。
-  static const double followingCardTextExtent = 50;
+
+  /// 追剧网格卡文字区：间距 6 + 两行剧名 16*1.3*2=41.6 ≈ 48，留 4 余量。
+  static const double followingCardTextExtent = 52;
   static const double followingSubtitleFont = 12;
   static const double followingSubtitleGap = 4;
   static const double followingProgressHeight = 2;

lib/core/widgets/catalog_endpoint_editor.dart

@@ -15,12 +15,11 @@ const String _invalid = '请输入合法地址，例如 http://192.168.1.10:8081
 const String _saveFailed = '服务地址保存失败';
 const String _localNetworkHint = '手机需与电脑同一 Wi-Fi，并在 iOS 设置-隐私与安全性-本地网络 中允许本应用';
 
-/// Debug 下编辑服务地址，保存后重新探测并加载目录。
+/// Debug 下编辑服务地址，保存后立即按新地址重新加载目录。
 Future<void> showCatalogEndpointEditor(
   BuildContext context, {
   required Future<void> Function() reload,
   Future<bool> Function(String value)? save,
-  Future<void> Function()? probe,
 }) async {
   if (!kDebugMode) return;
   final value = await showDialog<String>(
@@ -37,7 +36,6 @@ Future<void> showCatalogEndpointEditor(
     }
     return;
   }
-  await (probe ?? () => AppConfig.probeAndApplyBaseUrl())();
   await reload();
 }
 

lib/l10n/app_en.arb

@@ -316,6 +316,7 @@
     }
   },
   "episodes": "Episodes",
+  "similarDramas": "More like this",
   "synopsisTitle": "Synopsis",
   "watchEpisodeOne": "Watch episode 1",
   "continueEpisode": "Continue episode {number}",
@@ -432,7 +433,7 @@
   "joinVip": "Join VIP",
   "earnRewards": "Earn Rewards",
   "freeBonus": "Get Free Bonus",
-  "watchHistory": "Watch History",
+  "watchHistory": "History",
   "settings": "Settings",
   "serverAddress": "Server address",
   "serverSettings": "Server settings",
@@ -492,7 +493,7 @@
   "progressError": "Your watch position could not be loaded.",
   "favoritesError": "Your favorites could not be loaded.",
   "favoriteToggleFailed": "Could not update favorites. Please retry.",
-  "myFavorites": "My favorites",
+  "myFavorites": "Favorites",
   "noFavorites": "No favorites yet.",
   "downloads": "Downloads",
   "downloadsError": "Download settings could not be loaded.",
@@ -785,7 +786,7 @@
   "visitor": "Visitor",
   "copyUid": "Copy UID",
   "uidCopied": "UID copied",
-  "offlineDownloads": "Offline downloads",
+  "offlineDownloads": "Downloads",
   "watchPreferences": "Watch preferences",
   "contactSupport": "Contact support",
   "vipBrandName": "FruitShorts VIP",
@@ -803,7 +804,7 @@
       "total": { "type": "int" }
     }
   },
-  "myFavorites": "My Favorites",
+  "myFavorites": "Favorites",
   "manage": "Manage",
   "continueWatching": "Continue Watching",
   "continueWatchingSubtitle": "Episode {episode} of {total}",

lib/l10n/app_id.arb

@@ -295,6 +295,7 @@
     }
   },
   "episodes": "Episode",
+  "similarDramas": "Rekomendasi Serupa",
   "synopsisTitle": "Sinopsis",
   "watchEpisodeOne": "Tonton episode 1",
   "continueEpisode": "Lanjut episode {number}",
@@ -411,7 +412,7 @@
   "joinVip": "Gabung VIP",
   "earnRewards": "Dapatkan Hadiah",
   "freeBonus": "Bonus Gratis",
-  "watchHistory": "Riwayat Tontonan",
+  "watchHistory": "Riwayat",
   "settings": "Pengaturan",
   "serverAddress": "Alamat server",
   "serverSettings": "Pengaturan server",
@@ -471,7 +472,7 @@
   "progressError": "Posisi tonton gagal dimuat.",
   "favoritesError": "Daftar favorit gagal dimuat.",
   "favoriteToggleFailed": "Gagal memperbarui favorit. Coba lagi.",
-  "myFavorites": "Favorit saya",
+  "myFavorites": "Favorit",
   "noFavorites": "Belum ada favorit.",
   "downloads": "Unduhan",
   "downloadsError": "Pengaturan unduhan gagal dimuat.",
@@ -747,7 +748,7 @@
   "visitor": "Pengunjung",
   "copyUid": "Salin UID",
   "uidCopied": "UID disalin",
-  "offlineDownloads": "Unduhan offline",
+  "offlineDownloads": "Unduhan",
   "watchPreferences": "Preferensi tontonan",
   "contactSupport": "Hubungi dukungan",
   "vipBrandName": "FruitShorts VIP",
@@ -765,7 +766,7 @@
       "total": { "type": "int" }
     }
   },
-  "myFavorites": "Favorit Saya",
+  "myFavorites": "Favorit",
   "manage": "Kelola",
   "continueWatching": "Lanjutkan",
   "continueWatchingSubtitle": "Episode {episode} dari {total}",

lib/l10n/app_localizations.dart

@@ -1276,6 +1276,12 @@ abstract class AppLocalizations {
   /// **'Episodes'**
   String get episodes;
 
+  /// No description provided for @similarDramas.
+  ///
+  /// In en, this message translates to:
+  /// **'More like this'**
+  String get similarDramas;
+
   /// No description provided for @synopsisTitle.
   ///
   /// In en, this message translates to:
@@ -1771,7 +1777,7 @@ abstract class AppLocalizations {
   /// No description provided for @watchHistory.
   ///
   /// In en, this message translates to:
-  /// **'Watch History'**
+  /// **'History'**
   String get watchHistory;
 
   /// No description provided for @settings.
@@ -2131,7 +2137,7 @@ abstract class AppLocalizations {
   /// No description provided for @myFavorites.
   ///
   /// In en, this message translates to:
-  /// **'My Favorites'**
+  /// **'Favorites'**
   String get myFavorites;
 
   /// No description provided for @noFavorites.
@@ -3415,7 +3421,7 @@ abstract class AppLocalizations {
   /// No description provided for @offlineDownloads.
   ///
   /// In en, this message translates to:
-  /// **'Offline downloads'**
+  /// **'Downloads'**
   String get offlineDownloads;
 
   /// No description provided for @watchPreferences.

lib/l10n/app_localizations_en.dart

@@ -644,6 +644,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get episodes => 'Episodes';
 
+  @override
+  String get similarDramas => 'More like this';
+
   @override
   String get synopsisTitle => 'Synopsis';
 
@@ -903,7 +906,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String get freeBonus => 'Get Free Bonus';
 
   @override
-  String get watchHistory => 'Watch History';
+  String get watchHistory => 'History';
 
   @override
   String get settings => 'Settings';
@@ -1089,7 +1092,7 @@ class AppLocalizationsEn extends AppLocalizations {
       'Could not update favorites. Please retry.';
 
   @override
-  String get myFavorites => 'My Favorites';
+  String get myFavorites => 'Favorites';
 
   @override
   String get noFavorites => 'No favorites yet.';
@@ -1783,7 +1786,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String get uidCopied => 'UID copied';
 
   @override
-  String get offlineDownloads => 'Offline downloads';
+  String get offlineDownloads => 'Downloads';
 
   @override
   String get watchPreferences => 'Watch preferences';

lib/l10n/app_localizations_id.dart

@@ -645,6 +645,9 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get episodes => 'Episode';
 
+  @override
+  String get similarDramas => 'Rekomendasi Serupa';
+
   @override
   String get synopsisTitle => 'Sinopsis';
 
@@ -906,7 +909,7 @@ class AppLocalizationsId extends AppLocalizations {
   String get freeBonus => 'Bonus Gratis';
 
   @override
-  String get watchHistory => 'Riwayat Tontonan';
+  String get watchHistory => 'Riwayat';
 
   @override
   String get settings => 'Pengaturan';
@@ -1091,7 +1094,7 @@ class AppLocalizationsId extends AppLocalizations {
   String get favoriteToggleFailed => 'Gagal memperbarui favorit. Coba lagi.';
 
   @override
-  String get myFavorites => 'Favorit Saya';
+  String get myFavorites => 'Favorit';
 
   @override
   String get noFavorites => 'Belum ada favorit.';
@@ -1785,7 +1788,7 @@ class AppLocalizationsId extends AppLocalizations {
   String get uidCopied => 'UID disalin';
 
   @override
-  String get offlineDownloads => 'Unduhan offline';
+  String get offlineDownloads => 'Unduhan';
 
   @override
   String get watchPreferences => 'Preferensi tontonan';

lib/l10n/app_localizations_zh.dart

@@ -638,6 +638,9 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get episodes => '选集';
 
+  @override
+  String get similarDramas => '相似推荐';
+
   @override
   String get synopsisTitle => '简介';
 

lib/l10n/app_zh.arb

@@ -281,6 +281,7 @@
   "episodeCount": "{count} 集",
   "technicalDemoCount": "免费试看 · {count} 集",
   "episodes": "选集",
+  "similarDramas": "相似推荐",
   "synopsisTitle": "简介",
   "watchEpisodeOne": "观看第 1 集",
   "continueEpisode": "续看第 {number} 集",

lib/main.dart

@@ -13,10 +13,14 @@ import 'core/platform/wireless_data_prompt.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  // 生产包不能连开发机：忘了改开关时宁可启动即失败。
+  if (kReleaseMode && AppConfig.useDevConfig) {
+    throw StateError('release 构建请把 AppConfig.useDevConfig 改成 false');
+  }
   await ServerEndpoint.load();
   AppConfig.ready = WirelessDataPrompt.awaitDecision(
     enabled: !kIsWeb && defaultTargetPlatform == TargetPlatform.iOS,
-  ).then((_) => AppConfig.probeAndApplyBaseUrl());
+  );
   runApp(const LumaDramaApp());
   unawaited(
     SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]),

lib/pages/discover/discover_view.dart

@@ -10,7 +10,6 @@ import 'package:provider/provider.dart';
 import '../../core/data/models/drama.dart';
 import '../../core/data/repositories/catalog_repository.dart';
 import '../../core/data/repositories/search_repository.dart';
-import '../../core/data/services/catalog_retry.dart';
 import '../../core/data/services/category_controller.dart';
 import '../../core/data/services/theater_feed_controller.dart';
 import '../../core/formatting/error_text.dart';
@@ -154,14 +153,19 @@ class _DiscoverPageState extends State<DiscoverPage> {
               edgeOffset: _stickyHeaderHeight + 8,
               onRefresh: () =>
                   Future.wait([categories.load(), theater.refreshCurrent()]),
-              child: ListView(
+              child: CustomScrollView(
                 controller: logic.scroll,
                 physics: AppPullToRefresh.physics,
-                padding: EdgeInsets.only(
-                  top: showHeader ? _stickyHeaderHeight : 0,
-                  bottom: AppDimens.spaceXl,
-                ),
-                children: _content(l10n, categories),
+                slivers: [
+                  if (showHeader)
+                    const SliverToBoxAdapter(
+                      child: SizedBox(height: _stickyHeaderHeight),
+                    ),
+                  ..._content(l10n, categories),
+                  const SliverToBoxAdapter(
+                    child: SizedBox(height: AppDimens.spaceXl),
+                  ),
+                ],
               ),
             ),
           ),
@@ -229,12 +233,12 @@ class _DiscoverPageState extends State<DiscoverPage> {
       ];
     }
     if (categories.loading && categories.categories.isEmpty) {
-      return [_block(const CircularProgressIndicator(strokeWidth: 2))];
+      return [_sliverBlock(const CircularProgressIndicator(strokeWidth: 2))];
     }
     final error = categories.error;
     if (error != null) {
       return [
-        _block(
+        _sliverBlock(
           EmptyState(
             key: const Key('home-categories-error'),
             icon: Icons.cloud_off_rounded,
@@ -254,12 +258,12 @@ class _DiscoverPageState extends State<DiscoverPage> {
       ];
     }
     if (theater.loadingFirstPage) {
-      return [_block(const CircularProgressIndicator(strokeWidth: 2))];
+      return [_sliverBlock(const CircularProgressIndicator(strokeWidth: 2))];
     }
     final theaterError = theater.lastError;
     if (theaterError != null && theater.dramas.isEmpty) {
       return [
-        _block(
+        _sliverBlock(
           EmptyState(
             key: const Key('home-categories-error'),
             icon: Icons.cloud_off_rounded,
@@ -283,38 +287,49 @@ class _DiscoverPageState extends State<DiscoverPage> {
   List<Widget> _theaterBlocks(AppLocalizations l10n) {
     final dramas = theater.dramas;
     return [
-      _toolbar(),
+      SliverToBoxAdapter(child: _toolbar()),
       if (dramas.isEmpty)
-        Padding(
-          padding: const EdgeInsets.symmetric(vertical: 40),
-          child: EmptyState(
-            key: const Key('discover-empty'),
-            icon: Icons.movie_filter_outlined,
-            title: l10n.noStories,
-            subtitle: l10n.emptyHint,
+        SliverToBoxAdapter(
+          child: Padding(
+            padding: const EdgeInsets.symmetric(vertical: 40),
+            child: EmptyState(
+              key: const Key('discover-empty'),
+              icon: Icons.movie_filter_outlined,
+              title: l10n.noStories,
+              subtitle: l10n.emptyHint,
+            ),
           ),
         )
       else
-        DramaGrid(l10n: l10n, dramas: dramas, onOpen: _openDrama),
+        SliverDramaGrid(
+          key: const Key('home-all-dramas-grid'),
+          l10n: l10n,
+          dramas: dramas,
+          onOpen: _openDrama,
+        ),
       if (theater.loadingMore)
-        const Padding(
-          padding: EdgeInsets.symmetric(vertical: 20),
-          child: Center(
-            child: SizedBox.square(
-              key: Key('theater-load-more'),
-              dimension: 22,
-              child: CircularProgressIndicator(strokeWidth: 2),
+        const SliverToBoxAdapter(
+          child: Padding(
+            padding: EdgeInsets.symmetric(vertical: 20),
+            child: Center(
+              child: SizedBox.square(
+                key: Key('theater-load-more'),
+                dimension: 22,
+                child: CircularProgressIndicator(strokeWidth: 2),
+              ),
             ),
           ),
         )
       else if (dramas.isNotEmpty && !theater.hasMore)
-        Padding(
-          key: const Key('paged-list-no-more'),
-          padding: const EdgeInsets.symmetric(vertical: 16),
-          child: Text(
-            l10n.noMoreItems,
-            textAlign: TextAlign.center,
-            style: const TextStyle(color: AppColors.textHint, fontSize: 12),
+        SliverToBoxAdapter(
+          child: Padding(
+            key: const Key('paged-list-no-more'),
+            padding: const EdgeInsets.symmetric(vertical: 16),
+            child: Text(
+              l10n.noMoreItems,
+              textAlign: TextAlign.center,
+              style: const TextStyle(color: AppColors.textHint, fontSize: 12),
+            ),
           ),
         ),
     ];
@@ -402,21 +417,19 @@ class _DiscoverPageState extends State<DiscoverPage> {
     Navigator.of(context).push<void>(MaterialPageRoute(builder: (_) => page));
   }
 
+  Widget _sliverBlock(Widget child) => SliverToBoxAdapter(child: _block(child));
+
   Widget _block(Widget child) => ConstrainedBox(
     constraints: const BoxConstraints(minHeight: 280),
     child: Center(child: child),
   );
 
   Future<void> _retryCategories(CategoryController categories) {
-    return retryCatalogLoad(reload: categories.load);
+    return categories.load();
   }
 
-  Future<void> _retryTheater() async {
-    await retryCatalogLoad(
-      reload: () async {
-        await theater.refreshCurrent();
-      },
-    );
+  Future<void> _retryTheater() {
+    return theater.refreshCurrent();
   }
 
   Future<void> _editTheaterEndpoint() {

lib/pages/discover/widgets/discover_search_results.dart

@@ -10,6 +10,8 @@ import '../../../l10n/app_localizations.dart';
 import 'drama_grid.dart';
 
 /// 剧场搜索结果：加载、失败与空结果都留在同一页内。
+///
+/// 自身是 sliver，好让结果网格跟着剧场页一起懒加载。
 class DiscoverSearchResults extends StatelessWidget {
   const DiscoverSearchResults({
     super.key,
@@ -26,16 +28,24 @@ class DiscoverSearchResults extends StatelessWidget {
   final VoidCallback onRetry;
   final ValueChanged<Drama> onOpen;
 
+  static const EdgeInsets _topPadding = EdgeInsets.only(top: 12);
+
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
-    return Padding(
-      padding: const EdgeInsets.only(top: 12),
-      child: _content(l10n),
+    if (!loading && error == null && results.isNotEmpty) {
+      return SliverPadding(
+        padding: _topPadding,
+        sliver: SliverDramaGrid(l10n: l10n, dramas: results, onOpen: onOpen),
+      );
+    }
+    return SliverPadding(
+      padding: _topPadding,
+      sliver: SliverToBoxAdapter(child: _state(l10n)),
     );
   }
 
-  Widget _content(AppLocalizations l10n) {
+  Widget _state(AppLocalizations l10n) {
     if (loading) {
       return const Padding(
         padding: EdgeInsets.symmetric(vertical: 80),
@@ -61,14 +71,11 @@ class DiscoverSearchResults extends StatelessWidget {
         onAction: onRetry,
       );
     }
-    if (results.isEmpty) {
-      return EmptyState(
-        key: const Key('discover-search-empty'),
-        icon: Icons.search_off_rounded,
-        title: l10n.noSearchResults,
-        subtitle: l10n.emptyHint,
-      );
-    }
-    return DramaGrid(l10n: l10n, dramas: results, onOpen: onOpen);
+    return EmptyState(
+      key: const Key('discover-search-empty'),
+      icon: Icons.search_off_rounded,
+      title: l10n.noSearchResults,
+      subtitle: l10n.emptyHint,
+    );
   }
 }

lib/pages/discover/widgets/drama_grid.dart

@@ -7,9 +7,9 @@ import '../../../core/data/models/drama.dart';
 import '../../../core/formatting/count_format.dart';
 import '../../../core/theme/app_colors.dart';
 import '../../../core/theme/app_dimens.dart';
+import '../../../core/widgets/remote_image.dart';
 import '../../../l10n/app_localizations.dart';
 
-const int _columns = 2;
 const double _columnGap = 8;
 const double _cardGap = 14;
 const double _gridHorizontalPadding = 12;
@@ -28,8 +28,10 @@ const Color _tagChipBackground = AppColors.raised;
 final RegExp _tagSplitter = RegExp(r'[,/、·]');
 
 /// 剧场/分类页共用的双列剧目网格。
-class DramaGrid extends StatelessWidget {
-  const DramaGrid({
+///
+/// 按行懒加载：翻到第 N 页时只构建当前可见的几张卡，长列表不会把整本目录都留在树上。
+class SliverDramaGrid extends StatelessWidget {
+  const SliverDramaGrid({
     super.key,
     required this.l10n,
     required this.dramas,
@@ -42,33 +44,41 @@ class DramaGrid extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Padding(
-      key: const Key('home-all-dramas-section'),
+    final rowCount = (dramas.length + 1) ~/ 2;
+    return SliverPadding(
       padding: const EdgeInsets.symmetric(horizontal: _gridHorizontalPadding),
-      child: Row(
-        key: const Key('home-all-dramas-grid'),
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
-          Expanded(child: _column(0)),
-          const SizedBox(width: _columnGap),
-          Expanded(child: _column(1)),
-        ],
+      sliver: SliverList(
+        delegate: SliverChildBuilderDelegate((context, row) {
+          final left = dramas[row * 2];
+          final rightIndex = row * 2 + 1;
+          final right = rightIndex < dramas.length ? dramas[rightIndex] : null;
+          return Padding(
+            // 行间距沿用卡片间距，首行不需要。
+            padding: EdgeInsets.only(top: row == 0 ? 0 : _cardGap),
+            child: Row(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Expanded(child: _card(left)),
+                const SizedBox(width: _columnGap),
+                Expanded(
+                  child: right == null
+                      ? const SizedBox.shrink()
+                      : _card(right),
+                ),
+              ],
+            ),
+          );
+        }, childCount: rowCount),
       ),
     );
   }
 
-  Widget _column(int start) {
-    final children = <Widget>[];
-    for (var index = start; index < dramas.length; index += _columns) {
-      final drama = dramas[index];
-      children.add(
-        DramaGridCard(l10n: l10n, drama: drama, onTap: () => onOpen(drama)),
-      );
-      if (index + _columns < dramas.length) {
-        children.add(const SizedBox(height: _cardGap));
-      }
-    }
-    return Column(children: children);
+  Widget _card(Drama drama) {
+    return DramaGridCard(
+      l10n: l10n,
+      drama: drama,
+      onTap: () => onOpen(drama),
+    );
   }
 }
 
@@ -218,16 +228,28 @@ class _DiscoverCoverImage extends StatelessWidget {
   Widget build(BuildContext context) {
     final url = AppConfig.mediaUrl(path);
     if (url.isEmpty) return _placeholder();
-    return Image.network(
-      url,
-      width: double.infinity,
-      height: double.infinity,
-      fit: BoxFit.cover,
-      loadingBuilder: (context, child, progress) {
-        if (progress == null) return child;
-        return _placeholder();
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        // 卡片只有半屏宽，按原图解码一张竖版海报就是数 MB，按布局宽度限一下。
+        final decodeWidth = constraints.hasBoundedWidth
+            ? resolveImageDecodePixels(
+                constraints.maxWidth,
+                MediaQuery.devicePixelRatioOf(context),
+              )
+            : null;
+        return Image.network(
+          url,
+          width: double.infinity,
+          height: double.infinity,
+          fit: BoxFit.cover,
+          cacheWidth: decodeWidth,
+          loadingBuilder: (context, child, progress) {
+            if (progress == null) return child;
+            return _placeholder();
+          },
+          errorBuilder: (_, _, _) => _placeholder(),
+        );
       },
-      errorBuilder: (_, _, _) => _placeholder(),
     );
   }
 

lib/pages/downloads/downloads_page.dart

@@ -374,7 +374,7 @@ class _LicenseTile extends StatelessWidget {
               Expanded(
                 child: Text(
                   license.dramaTitle,
-                  maxLines: 1,
+                  maxLines: 2,
                   overflow: TextOverflow.ellipsis,
                   style: const TextStyle(
                     color: AppColors.onSurface,

lib/pages/filter/filter_page.dart

@@ -23,7 +23,9 @@ const double _optionHorizontal = 5;
 const double _optionVertical = 5;
 const double _optionRunGap = 4;
 const double _cardGap = 14;
-const double _gridAspectRatio = 0.56;
+
+/// 卡片比例：三列网格里要装下封面 + 两行剧名 + 元信息。
+const double _gridAspectRatio = 0.53;
 const double _groupFontSize = 13;
 const double _labelFontSize = 12;
 

lib/pages/filter/widgets/filter_result_card.dart

@@ -88,7 +88,7 @@ class FilterResultCard extends StatelessWidget {
           Text(
             drama.title,
             key: Key('filter-title-${drama.id}'),
-            maxLines: 1,
+            maxLines: 2,
             overflow: TextOverflow.ellipsis,
             style: const TextStyle(
               color: AppColors.onSurface,

lib/pages/following/following_favorites_grid.dart

@@ -167,18 +167,10 @@ class FollowingFavoritesGrid extends StatelessWidget {
     bool isEditing,
     Set<String> picked,
   ) {
-    final l10n = AppLocalizations.of(context)!;
     if (index == controller.cards.length) {
       return FollowingAddCard(onTap: onGoHome);
     }
     final drama = controller.cards[index];
-    final record = history.recordForDrama(drama.id);
-    final episode = drama.episodes.isEmpty ? 1 : drama.episodes.first.number;
-    final watchedEpisode = record?.episodeNumber ?? 0;
-    final total = drama.episodeCount;
-    final subtitle = watchedEpisode > 0 && total > 0
-        ? l10n.watchedEpisodeTotal(watchedEpisode, total)
-        : l10n.favoriteEpisodeProgress(episode, total);
     return FollowingGridCard(
       dramaId: drama.id,
       title: drama.localizedTitle(Localizations.localeOf(context).languageCode),
@@ -186,10 +178,7 @@ class FollowingFavoritesGrid extends StatelessWidget {
       viewCount: drama.viewCount,
       editing: isEditing,
       selected: isEditing ? picked.contains(drama.id) : null,
-      subtitle: subtitle,
-      // TODO(backend): Drama 增加 hasUpdate / latestEpisodeNumber / isFinished
-      // 字段后，在此传 updateBadge（l10n.hasUpdateBadge）、红色更新副标题
-      // （l10n.updatedToEpisode）或灰色完结副标题（l10n.finishedAllEpisodes）。
+      // TODO(backend): Drama 增加 hasUpdate 字段后，在此传 updateBadge。
       onTap: () => _openOrToggle(context, drama.id, isEditing),
     );
   }

lib/pages/following/following_grid_card.dart

@@ -19,21 +19,18 @@ class FollowingGridCard extends StatelessWidget {
     required this.title,
     required this.posterUrl,
     required this.viewCount,
-    required this.subtitle,
     required this.onTap,
     this.progress,
     this.editing = false,
     this.selected,
     this.onRemove,
     this.updateBadge,
-    this.subtitleColor,
   });
 
   final String dramaId;
   final String title;
   final String posterUrl;
   final int viewCount;
-  final String subtitle;
   final VoidCallback onTap;
   final double? progress;
   final bool editing;
@@ -44,9 +41,6 @@ class FollowingGridCard extends StatelessWidget {
   /// 待后端在 Drama 增加更新状态字段后由收藏网格传入。
   final String? updateBadge;
 
-  /// 副标题颜色；更新中用强调红，完结用默认灰。
-  final Color? subtitleColor;
-
   @override
   Widget build(BuildContext context) {
     return InkWell(
@@ -165,7 +159,7 @@ class FollowingGridCard extends StatelessWidget {
           const SizedBox(height: AppDimens.cardCoverTitleGap),
           Text(
             title,
-            maxLines: 1,
+            maxLines: 2,
             overflow: TextOverflow.ellipsis,
             textAlign: TextAlign.left,
             style: const TextStyle(
@@ -175,17 +169,6 @@ class FollowingGridCard extends StatelessWidget {
               height: AppDimens.cardTitleLineHeight,
             ),
           ),
-          const SizedBox(height: AppDimens.followingSubtitleGap),
-          Text(
-            subtitle,
-            maxLines: 1,
-            overflow: TextOverflow.ellipsis,
-            textAlign: TextAlign.left,
-            style: TextStyle(
-              color: subtitleColor ?? AppColors.textTertiary,
-              fontSize: AppDimens.followingCardSubtitleFontNew,
-            ),
-          ),
         ],
       ),
     );

lib/pages/following/following_page.dart

@@ -69,10 +69,14 @@ class _FollowingPageState extends State<FollowingPage> {
       history: context.read<WatchHistoryRepository>(),
       catalog: context.read<CatalogRepository>(),
     );
-    unawaited(_history.load());
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (mounted) unawaited(widget.favoriteController.load());
-    });
+    // IndexedStack 启动时就会建好本页：不可见时先不拉数据，等切到本 tab 再加载，
+    // 免得冷启动和首页 feed 抢网络。
+    if (widget.visible) {
+      unawaited(_history.load());
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (mounted) unawaited(widget.favoriteController.load());
+      });
+    }
   }
 
   void _onAuthChanged() {
@@ -107,6 +111,13 @@ class _FollowingPageState extends State<FollowingPage> {
     super.didUpdateWidget(oldWidget);
     if (!oldWidget.visible && widget.visible) {
       unawaited(_history.load());
+      // 启动时本页不可见，收藏没在这里拉过；首次可见时补齐（已有数据就不重复请求）。
+      // 放在帧后，避免构建期间触发 controller 通知。
+      if (widget.favoriteController.cards.isEmpty) {
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          if (mounted) unawaited(widget.favoriteController.load());
+        });
+      }
     }
     if (oldWidget.historyRequest == widget.historyRequest) return;
     WidgetsBinding.instance.addPostFrameCallback((_) {

lib/pages/following/widgets/continue_watching_banner.dart

@@ -33,13 +33,12 @@ class ContinueWatchingBanner extends StatelessWidget {
     return SizedBox(
       height: AppDimens.followingBannerHeight,
       child: ClipRRect(
-        borderRadius:
-            BorderRadius.circular(AppDimens.followingBannerRadius),
+        borderRadius: BorderRadius.circular(AppDimens.followingBannerRadius),
         child: Stack(
           fit: StackFit.expand,
           children: [
             RemoteImage(
-              record.displayCover,
+              record.displayLandscapeCover,
               fit: BoxFit.cover,
               showFallbackIcon: true,
               fallbackColor: AppColors.contentSurface,
@@ -82,8 +81,7 @@ class ContinueWatchingBanner extends StatelessWidget {
                                 overflow: TextOverflow.ellipsis,
                                 style: const TextStyle(
                                   color: AppColors.bannerTitleWarm,
-                                  fontSize:
-                                      AppDimens.followingBannerTitleFont,
+                                  fontSize: AppDimens.followingBannerTitleFont,
                                   fontWeight: FontWeight.w400,
                                 ),
                               ),
@@ -143,8 +141,7 @@ class _ContinueButton extends StatelessWidget {
         height: AppDimens.followingBannerButtonHeight,
         child: Padding(
           padding: const EdgeInsets.symmetric(
-            horizontal:
-                AppDimens.followingBannerButtonHorizontalPadding,
+            horizontal: AppDimens.followingBannerButtonHorizontalPadding,
           ),
           child: Row(
             mainAxisSize: MainAxisSize.min,
@@ -188,9 +185,7 @@ class _ProgressBar extends StatelessWidget {
         height: AppDimens.followingBannerProgressHeight,
         width: double.infinity,
         child: DecoratedBox(
-          decoration: const BoxDecoration(
-            color: Color(0x66FFFFFF),
-          ),
+          decoration: const BoxDecoration(color: Color(0x66FFFFFF)),
           child: Align(
             alignment: Alignment.centerLeft,
             child: FractionallySizedBox(

lib/pages/home/home_view.dart

@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 
-import '../../core/config/app_config.dart';
 import '../../core/data/remote/catalog_api.dart';
 import '../../core/data/services/home_feed_controller.dart';
 import '../../core/data/services/catalog_controller.dart';
@@ -67,7 +66,7 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
   ) async {
     _resumeRetryInFlight = true;
     try {
-      await AppConfig.probeAndApplyBaseUrl();
+      // 地址是构建期常量，回前台只需要重试失败的数据请求。
       await Future.wait([
         if (catalog.error != null) catalog.load(),
         if (categories.error != null) categories.load(),
@@ -80,10 +79,7 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
   @override
   Widget build(BuildContext context) {
     final catalog = context.watch<CatalogController>();
-    return Theme(
-      data: AppTheme.dark(),
-      child: _buildHome(context, catalog),
-    );
+    return Theme(data: AppTheme.dark(), child: _buildHome(context, catalog));
   }
 
   Widget _buildHome(BuildContext context, CatalogController catalog) {
@@ -165,24 +161,18 @@ class _HomeTabsState extends State<_HomeTabs> {
   }
 
   Widget _body(BuildContext context) {
-    final pages = <Widget>[
-      _recommend(context),
-      _recommendDiscover(context),
-      FollowingPage(
+    final builders = <WidgetBuilder>[
+      _recommend,
+      _recommendDiscover,
+      (context) => FollowingPage(
         onGoHome: () => logic.select(0),
         favoriteController: context.read<FavoriteController>(),
         historyRequest: logic.followingHistoryRequest,
         visible: logic.tab == 2,
       ),
-      _my(context),
+      _my,
     ];
-    return IndexedStack(
-      index: logic.tab,
-      children: [
-        for (var index = 0; index < pages.length; index++)
-          TickerMode(enabled: logic.tab == index, child: pages[index]),
-      ],
-    );
+    return _LazyTabStack(index: logic.tab, builders: builders);
   }
 
   Widget _recommend(BuildContext context) {
@@ -252,3 +242,42 @@ class _HomeTabsState extends State<_HomeTabs> {
     logic.select(tab);
   }
 }
+
+/// 四个根 tab 的容器：只有被访问过的 tab 才真正构建并常驻。
+///
+/// 冷启动时只建推荐页，其余 tab 等第一次切过去再建，省掉三棵子树和它们各自的请求。
+class _LazyTabStack extends StatefulWidget {
+  const _LazyTabStack({required this.index, required this.builders});
+
+  final int index;
+  final List<WidgetBuilder> builders;
+
+  @override
+  State<_LazyTabStack> createState() => _LazyTabStackState();
+}
+
+class _LazyTabStackState extends State<_LazyTabStack> {
+  late final Set<int> _visited = {widget.index};
+
+  @override
+  void didUpdateWidget(covariant _LazyTabStack oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    _visited.add(widget.index);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IndexedStack(
+      index: widget.index,
+      children: [
+        for (var index = 0; index < widget.builders.length; index++)
+          TickerMode(
+            enabled: widget.index == index,
+            child: _visited.contains(index)
+                ? widget.builders[index](context)
+                : const SizedBox.shrink(),
+          ),
+      ],
+    );
+  }
+}

lib/pages/new_releases/new_releases_page.dart

@@ -22,7 +22,9 @@ const int _moreLimit = 12;
 const int _filmHoles = 8;
 const double _cardPadding = 8;
 const double _cardWidth = 124;
-const double _rowHeight = 204;
+
+/// 横向卡片行高：封面 144 + 两行剧名 + 上映日期。
+const double _rowHeight = 226;
 const double _cardRadius = 12;
 const double _loadMoreThreshold = 200;
 
@@ -135,64 +137,79 @@ class _NewReleasesPageState extends State<NewReleasesPage> {
                     child: AppPullToRefresh(
                       key: const Key('new-releases-refresh'),
                       onRefresh: _refresh,
-                      child: ListView(
+                      child: CustomScrollView(
                         key: const Key('new-releases-list'),
                         controller: _scroll,
                         physics: AppPullToRefresh.physics,
-                        padding: const EdgeInsets.only(bottom: 24),
-                        children: hero == null
+                        slivers: hero == null
                             ? [
-                                SizedBox(
-                                  height: 420,
-                                  child: Center(
-                                    child: Text(
-                                      l10n.noStories,
-                                      key: const Key('new-releases-empty'),
-                                      style: const TextStyle(
-                                        color: AppColors.muted,
+                                SliverToBoxAdapter(
+                                  child: SizedBox(
+                                    height: 420,
+                                    child: Center(
+                                      child: Text(
+                                        l10n.noStories,
+                                        key: const Key('new-releases-empty'),
+                                        style: const TextStyle(
+                                          color: AppColors.muted,
+                                        ),
                                       ),
                                     ),
                                   ),
                                 ),
                               ]
                             : [
-                                Padding(
-                                  padding: const EdgeInsets.symmetric(
-                                    horizontal: 16,
+                                SliverToBoxAdapter(
+                                  child: Padding(
+                                    padding: const EdgeInsets.symmetric(
+                                      horizontal: 16,
+                                    ),
+                                    child: _heroCard(context, l10n, hero),
                                   ),
-                                  child: _heroCard(context, l10n, hero),
                                 ),
-                                const SizedBox(height: 14),
-                                const _FilmStrip(),
-                                const SizedBox(height: 14),
+                                const SliverToBoxAdapter(
+                                  child: SizedBox(height: 14),
+                                ),
+                                const SliverToBoxAdapter(child: _FilmStrip()),
+                                const SliverToBoxAdapter(
+                                  child: SizedBox(height: 14),
+                                ),
                                 if (more.isNotEmpty) ...[
-                                  _moreHeader(l10n),
-                                  const SizedBox(height: 10),
-                                  SizedBox(
-                                    height: _rowHeight,
-                                    child: ListView.separated(
-                                      key: const Key('new-releases-row'),
-                                      scrollDirection: Axis.horizontal,
-                                      padding: const EdgeInsets.symmetric(
-                                        horizontal: 16,
+                                  SliverToBoxAdapter(child: _moreHeader(l10n)),
+                                  const SliverToBoxAdapter(
+                                    child: SizedBox(height: 10),
+                                  ),
+                                  SliverToBoxAdapter(
+                                    child: SizedBox(
+                                      height: _rowHeight,
+                                      child: ListView.separated(
+                                        key: const Key('new-releases-row'),
+                                        scrollDirection: Axis.horizontal,
+                                        padding: const EdgeInsets.symmetric(
+                                          horizontal: 16,
+                                        ),
+                                        itemCount: more.length,
+                                        separatorBuilder: (_, _) =>
+                                            const SizedBox(width: 10),
+                                        itemBuilder: (context, index) =>
+                                            _moreCard(
+                                              context,
+                                              l10n,
+                                              more[index],
+                                              index,
+                                            ),
                                       ),
-                                      itemCount: more.length,
-                                      separatorBuilder: (_, _) =>
-                                          const SizedBox(width: 10),
-                                      itemBuilder: (context, index) =>
-                                          _moreCard(
-                                            context,
-                                            l10n,
-                                            more[index],
-                                            index,
-                                          ),
                                     ),
                                   ),
                                 ],
-                                const SizedBox(height: 20),
-                                _allHeader(l10n),
-                                const SizedBox(height: 10),
-                                DramaGrid(
+                                const SliverToBoxAdapter(
+                                  child: SizedBox(height: 20),
+                                ),
+                                SliverToBoxAdapter(child: _allHeader(l10n)),
+                                const SliverToBoxAdapter(
+                                  child: SizedBox(height: 10),
+                                ),
+                                SliverDramaGrid(
                                   key: const Key('new-releases-all-grid'),
                                   l10n: l10n,
                                   dramas: visible,
@@ -200,12 +217,17 @@ class _NewReleasesPageState extends State<NewReleasesPage> {
                                     playDramaFromCatalog(context, drama),
                                   ),
                                 ),
-                                PagedLoadFooter(
-                                  loading: pager.loading,
-                                  hasMore: pager.hasMore,
-                                  hasItems: visible.isNotEmpty,
-                                  loadMoreKey: const Key(
-                                    'new-releases-load-more',
+                                SliverToBoxAdapter(
+                                  child: Padding(
+                                    padding: const EdgeInsets.only(bottom: 24),
+                                    child: PagedLoadFooter(
+                                      loading: pager.loading,
+                                      hasMore: pager.hasMore,
+                                      hasItems: visible.isNotEmpty,
+                                      loadMoreKey: const Key(
+                                        'new-releases-load-more',
+                                      ),
+                                    ),
                                   ),
                                 ),
                               ],
@@ -445,7 +467,7 @@ class _NewReleasesPageState extends State<NewReleasesPage> {
             const SizedBox(height: 4),
             Text(
               drama.title,
-              maxLines: 1,
+              maxLines: 2,
               overflow: TextOverflow.ellipsis,
               style: const TextStyle(
                 color: AppColors.onSurface,

lib/pages/player/player_binding.dart

@@ -5,6 +5,7 @@ import '../../core/data/repositories/playback_repository.dart';
 import '../../core/data/services/android_picture_in_picture.dart';
 import '../../core/data/services/download_controller.dart';
 import '../../core/data/services/playback_position_cache.dart';
+import '../../core/data/services/unlocked_episode_registry.dart';
 import '../../core/data/services/wallet_controller.dart';
 import 'player_logic.dart';
 
@@ -13,6 +14,7 @@ class PlayerBinding {
     required WatchHistoryRepository history,
     required PlaybackRepository playback,
     required PlaybackPositionCache positionCache,
+    UnlockedEpisodeRegistry? unlockedEpisodes,
     WalletController? wallet,
     DownloadController? downloads,
     bool Function()? isSignedIn,
@@ -20,6 +22,7 @@ class PlayerBinding {
     history: history,
     playback: playback,
     positionCache: positionCache,
+    unlockedEpisodes: unlockedEpisodes,
     pictureInPicture: AndroidPictureInPicture(),
     wallet: wallet,
     downloads: downloads,

lib/pages/player/player_logic.dart

@@ -27,6 +27,7 @@ import '../../core/data/services/platform_share_service.dart';
 import '../../core/data/services/playback_position_cache.dart';
 import '../../core/data/services/playback_queue.dart';
 import '../../core/data/services/playback_session.dart';
+import '../../core/data/services/unlocked_episode_registry.dart';
 import '../../core/data/services/video_player_port.dart';
 import '../../core/data/services/wallet_controller.dart';
 import '../../core/formatting/localized_content.dart';
@@ -34,12 +35,11 @@ import '../../core/theme/app_colors.dart';
 import '../../core/navigation/fade_page_route.dart';
 import '../../l10n/app_localizations.dart';
 import '../discover/search_page.dart';
-import '../drama_detail/drama_detail_view.dart';
 import '../mine/mine_types.dart';
 import '../mine/mine_view.dart';
 import 'player_view.dart';
 import 'widgets/drama_comments_sheet.dart';
-import 'widgets/episode_picker_sheet.dart';
+import 'widgets/drama_info_sheet.dart';
 
 typedef _PlaybackSnapshot = ({
   Duration position,
@@ -64,11 +64,13 @@ class PlayerLogic extends ChangeNotifier {
     required this.pictureInPicture,
     this.wallet,
     this.downloads,
+    UnlockedEpisodeRegistry? unlockedEpisodes,
     PlaybackPositionCache? positionCache,
     Future<void> Function()? waitForFrame,
     DateTime Function()? clock,
     bool Function()? isSignedIn,
-  }) : positionCache = positionCache ?? PlaybackPositionCache(),
+  }) : unlockedEpisodes = unlockedEpisodes ?? UnlockedEpisodeRegistry(),
+       positionCache = positionCache ?? PlaybackPositionCache(),
        _waitForFrame =
            waitForFrame ?? (() => WidgetsBinding.instance.endOfFrame),
        _clock = clock ?? DateTime.now,
@@ -79,6 +81,9 @@ class PlayerLogic extends ChangeNotifier {
   final AndroidPictureInPicture pictureInPicture;
   final WalletController? wallet;
   final DownloadController? downloads;
+
+  /// 已确认可播的收费集（登录期内共享）：退出播放页再进来不必重新挡一次。
+  final UnlockedEpisodeRegistry unlockedEpisodes;
   final PlaybackPositionCache positionCache;
   final Future<void> Function() _waitForFrame;
   final DateTime Function() _clock;
@@ -104,6 +109,9 @@ class PlayerLogic extends ChangeNotifier {
   ResumePoint? resumePoint;
   bool resumeLoaded = false;
 
+  /// 续看点加载中的请求：进页与首次准备播放会同时触发，复用同一次请求。
+  Future<void>? _resumePointLoad;
+
   /// 票据三态：加载中 / 失败（可重试）/ 被后端判定为不可播放
   bool ticketLoading = false;
   String? ticketError;
@@ -169,14 +177,15 @@ class PlayerLogic extends ChangeNotifier {
 
   /// 当前设备是否为 iOS 真机环境（面板据此显示自动小窗开关）。
   bool get iosDevice => !kIsWeb && Platform.isIOS;
+
   /// PiP 状态是全局单通道回调，须广播给所有存活的 PlayerLogic：
   /// 推荐页每页一个 logic，若只保留最后一次注册的 handler，
   /// 相邻预加载页会盖掉正在播放页的注册，导致小窗 UI 不隐藏且无声音。
   static final Set<PlayerLogic> _pipSubscribers = <PlayerLogic>{};
+
   /// 「记住上次选集」：dramaId → 集号。只在用户从选集面板主动挑集时写入
   /// （见 [_recordPickedEpisode]），feed 里同一部剧据此显示上次选中的集。
   static final Map<String, int> pickedEpisode = {};
-  final Set<String> _unlockedEpisodeIds = {};
   final Map<String, EpisodeStats> _episodeStats = {};
   final Map<String, DateTime> _episodeStatsFetchedAt = {};
   final Map<String, Future<void>> _episodeStatsInFlight = {};
@@ -505,7 +514,15 @@ class PlayerLogic extends ChangeNotifier {
   }
 
   /// 服务端续看位置：进播放页时取一次，用于"定位到上次那一集的那一秒"。
-  Future<void> loadResumePoint() async {
+  Future<void> loadResumePoint() {
+    final inFlight = _resumePointLoad;
+    if (inFlight != null) return inFlight;
+    return _resumePointLoad = _loadResumePoint().whenComplete(() {
+      _resumePointLoad = null;
+    });
+  }
+
+  Future<void> _loadResumePoint() async {
     final entry = queue.entryAt(initialIndex);
     final cached = positionCache.read(
       entry.episode.id,
@@ -562,7 +579,7 @@ class PlayerLogic extends ChangeNotifier {
       final localPath = await downloads?.findLocalPath(episode.id);
       if (request != pageRequest) return false;
       if (localPath != null) {
-        _unlockedEpisodeIds.add(episode.id);
+        unlockedEpisodes.markUnlocked(episode.id);
         blockedTicket = null;
         blockedEpisodeId = null;
         qualities = const [];
@@ -587,7 +604,7 @@ class PlayerLogic extends ChangeNotifier {
       final playUrl = preferred ?? ticket.playUrl;
       if (preferred == null) selectedQuality = 'AUTO';
       if (ticket.accessible && playUrl.isNotEmpty) {
-        _unlockedEpisodeIds.add(episode.id);
+        unlockedEpisodes.markUnlocked(episode.id);
         // 签名地址原样写回，不做任何拼接/改写（AppConfig.mediaUrl 只补 host）
         sessionEpisodes[index] = episode.withVideoUrl(
           playUrl,
@@ -860,7 +877,7 @@ class PlayerLogic extends ChangeNotifier {
         unlockError = service.unlockError;
         return false;
       }
-      _unlockedEpisodeIds.add(episode.id);
+      unlockedEpisodes.markUnlocked(episode.id);
       final ready = await ensureTicket(index, forceRefresh: true);
       if (ready) {
         await _selectVisible(index);
@@ -1274,9 +1291,9 @@ class PlayerLogic extends ChangeNotifier {
         await _waitUntilFrameReady(player.controller);
         return;
       }
-      await pendingWrite;
+      // 上一条进度写盘与续看点拉取互不依赖，并行等，少一个网络往返的首帧延迟。
       // 服务端每剧只记一条：只有"记录里的那一集"才定位，其它集从头播
-      if (resumePoint == null) await loadResumePoint();
+      await Future.wait([pendingWrite, if (!resumeLoaded) loadResumePoint()]);
       if (resumePositionFor(episode.id) == null) {
         final dramaId = _dramaIdForEpisode(episode.id);
         final cached = dramaId == null
@@ -1688,7 +1705,16 @@ class PlayerLogic extends ChangeNotifier {
   /// 收费集只有在本会话确认可播或解锁成功后才解除门禁。
   bool isEpisodeLocked(Episode episode) {
     return (episode.locked || !episode.isFree) &&
-        !_unlockedEpisodeIds.contains(episode.id);
+        !unlockedEpisodes.contains(episode.id);
+  }
+
+  /// 单页锁定判定：剧集自身锁定 + 会话锁态（只约束当前页）+ 后端拒绝。
+  ///
+  /// 播放页的多个渲染分支都必须走这里，否则相邻预加载页会被会话锁态误判成锁定。
+  bool isEpisodeBlockedFor(Episode episode, int index) {
+    return isEpisodeLocked(episode) ||
+        (index == session.currentIndex && session.isLocked) ||
+        blockedEpisodeId == episode.id;
   }
 
   /// 按可见队列选择一集，并预热上一集与下一集。
@@ -1806,22 +1832,9 @@ class PlayerLogic extends ChangeNotifier {
     if (context.mounted) Navigator.of(context).pop();
   }
 
-  Future<void> openDetail(BuildContext context) async {
-    session.setOverlayOpen(true);
-    await saveCurrentProgress();
-    try {
-      if (!context.mounted) return;
-      await Navigator.of(context).push(
-        FadePageRoute<void>(
-          builder: (_) =>
-              DramaDetailPage(drama: queue.entryAt(session.currentIndex).drama),
-        ),
-      );
-    } finally {
-      session.setOverlayOpen(false);
-    }
-    await saveCurrentProgress();
-  }
+  /// 剧名与选集共用同一个弹窗：点剧名默认停在详情页签。
+  Future<void> openDetail(BuildContext context) =>
+      _showDramaSheet(context, DramaInfoTab.detail);
 
   String? _dramaIdForEpisode(String episodeId) {
     for (final entry in queue.entries) {
@@ -1857,13 +1870,21 @@ class PlayerLogic extends ChangeNotifier {
     await resumeAfterFullPlayer();
   }
 
-  Future<void> showEpisodes(BuildContext context) async {
+  /// 选集入口：同一个弹窗，直接停在选集页签。
+  Future<void> showEpisodes(BuildContext context) =>
+      _showDramaSheet(context, DramaInfoTab.episodes);
+
+  Future<void> _showDramaSheet(
+    BuildContext context,
+    DramaInfoTab initialTab,
+  ) async {
     final entry = queue.entryAt(session.currentIndex);
     final drama = await _withFullEpisodes(context, entry.drama);
     if (!context.mounted) return;
     final homeFeed = feedDramas != null;
     final currentNumber = entry.episode.number;
     session.setOverlayOpen(true);
+    await saveCurrentProgress();
     await session.playbackSettled;
     if (!context.mounted) {
       session.setOverlayOpen(false);
@@ -1874,16 +1895,20 @@ class PlayerLogic extends ChangeNotifier {
         context: context,
         backgroundColor: AppColors.transparent,
         isScrollControlled: true,
-        builder: (_) => EpisodePickerSheet(
+        builder: (_) => DramaInfoSheet(
           drama: drama,
           currentNumber: currentNumber,
-          onSelect: (index) =>
+          initialTab: initialTab,
+          onSelectEpisode: (index) =>
               _selectFromSheet(context, drama, index, homeFeed, currentNumber),
+          onOpenRelated: (related) =>
+              unawaited(openSeriesAt(context, related, 0)),
         ),
       );
     } finally {
       session.setOverlayOpen(false);
     }
+    await saveCurrentProgress();
   }
 
   /// 列表卡片只带一集可播预览，需要完整剧集时补一次详情；

lib/pages/player/player_view.dart

@@ -20,6 +20,7 @@ import '../../core/data/services/playback_position_cache.dart';
 import '../../core/data/services/playback_session.dart';
 import '../../core/data/services/sprite_thumbnail_axis.dart';
 import '../../core/data/services/playback_thumbnail_service.dart';
+import '../../core/data/services/unlocked_episode_registry.dart';
 import '../../core/data/services/video_player_port.dart';
 import '../../core/data/services/wallet_controller.dart';
 import '../../core/formatting/error_text.dart';
@@ -60,6 +61,17 @@ const double _playerLoadingSize = 24;
 const double _playerLoadingStrokeWidth = 2;
 const double _feedRefreshTopGap = 56;
 
+/// 相邻集海报预缓存宽度：列表卡片只有百来 dp，按原图解码会占数 MB。
+const int _posterPreviewWidth = 360;
+
+/// 画中画还原封面接近全屏，保留更高分辨率但不必按原图。
+const int _posterPipWidth = 720;
+
+/// 预缓存用低分辨率 provider；与 RemoteImage 一样限制解码尺寸，避免整张原图进缓存。
+ImageProvider _posterProvider(String url, {required int width}) {
+  return ResizeImage(NetworkImage(url), width: width, allowUpscaling: false);
+}
+
 class PlayerPageHandoff {
   PlayerPageHandoff({required this.sourceUserWantsPlay});
 
@@ -167,6 +179,7 @@ class _PlayerPageState extends State<PlayerPage>
       history: context.read<WatchHistoryRepository>(),
       playback: context.read<PlaybackRepository>(),
       positionCache: context.read<PlaybackPositionCache>(),
+      unlockedEpisodes: _readUnlockedEpisodes(context),
       wallet: widget.wallet,
       downloads: widget.downloads,
       isSignedIn: () => context.read<AuthController>().isSignedIn,
@@ -176,6 +189,9 @@ class _PlayerPageState extends State<PlayerPage>
     _thumbnailService = PlaybackThumbnailService(
       sourceResolver: _resolveThumbnailSource,
     );
+    // 容量必须盖住「同时预取的数量」：渲染栈有上一集/当前集/下一集三个槽位，
+    // 每槽预取当前 cue + 1 个相邻 cue，约 6 张。容量小于这个数时，每次重建都会
+    // 把别处刚解码的雪碧图挤掉，形成「重建→重新下载解码→notify→重建」的死循环。
     _spriteAxisService = SpriteThumbnailAxisService(spriteCacheCapacity: 8)
       ..addListener(_handleSpriteFrameChanged);
     WidgetsBinding.instance.addObserver(this);
@@ -349,6 +365,16 @@ class _PlayerPageState extends State<PlayerPage>
     setState(() => _playbackSpeed = value);
   }
 
+  /// 全局解锁登记表（登录期内共享）；直接构造播放页的测试没有 Provider，
+  /// 返回 null 让 PlayerLogic 退化成页面自用的一份。
+  UnlockedEpisodeRegistry? _readUnlockedEpisodes(BuildContext context) {
+    try {
+      return context.read<UnlockedEpisodeRegistry>();
+    } on ProviderNotFoundException {
+      return null;
+    }
+  }
+
   void _hideChrome() {
     if (!_chromeVisible) return;
     setState(() => _chromeVisible = false);
@@ -495,9 +521,10 @@ class _PlayerPageState extends State<PlayerPage>
         final imageUrl = AppConfig.mediaUrl(posterUrl);
         if (_precachedPosterUrls.add(imageUrl)) {
           unawaited(
-            precacheImage(NetworkImage(imageUrl), context).catchError((
-              Object _,
-            ) {
+            precacheImage(
+              _posterProvider(imageUrl, width: _posterPreviewWidth),
+              context,
+            ).catchError((Object _) {
               _precachedPosterUrls.remove(imageUrl);
             }),
           );
@@ -716,7 +743,15 @@ class _PlayerPageState extends State<PlayerPage>
         if (logic.pip) {
           final poster = logic.trackedEpisode?.posterUrl?.trim();
           if (poster != null && poster.isNotEmpty) {
-            unawaited(precacheImage(NetworkImage(poster), context));
+            unawaited(
+              precacheImage(
+                _posterProvider(
+                  AppConfig.mediaUrl(poster),
+                  width: _posterPipWidth,
+                ),
+                context,
+              ),
+            );
           }
         }
         return Stack(
@@ -956,10 +991,7 @@ class _PlayerPageState extends State<PlayerPage>
     }
     final episode = _resolvedEpisode(index);
     final selected = index == currentIndex;
-    final locked =
-        logic.isEpisodeLocked(episode) ||
-        (selected && logic.session.isLocked) ||
-        logic.blockedEpisodeId == episode.id;
+    final locked = logic.isEpisodeBlockedFor(episode, index);
     final port = locked
         ? null
         : (selected ? logic.session.active : null) ??
@@ -982,19 +1014,19 @@ class _PlayerPageState extends State<PlayerPage>
     final thumbnailReady =
         thumbnailsUrl != null &&
         _spriteAxisService.cachedFrameAt(thumbnailsUrl, Duration.zero) != null;
-    if (!locked && !posterReady && thumbnailsUrl != null) {
+    // 只在没命中时预取：prepareAt 会触发下载解码并 notifyListeners -> 重建，
+    // 无条件调用会让每次重建都排一次异步任务。
+    if (!locked && !posterReady && !thumbnailReady && thumbnailsUrl != null) {
       unawaited(_spriteAxisService.prepareAt(thumbnailsUrl, Duration.zero));
     }
     if (selected &&
         !locked &&
         videoPort != null &&
         videoPort.controller.value.isInitialized) {
-      unawaited(
-        _spriteAxisService.prepareAt(
-          thumbnailsUrl,
-          videoPort.controller.value.position,
-        ),
-      );
+      final position = videoPort.controller.value.position;
+      if (_spriteAxisService.cachedFrameAt(thumbnailsUrl, position) == null) {
+        unawaited(_spriteAxisService.prepareAt(thumbnailsUrl, position));
+      }
     }
     final pagePosition = indices.indexOf(index);
     return PlayerRenderSlotData(
@@ -1042,10 +1074,7 @@ class _PlayerPageState extends State<PlayerPage>
     final drama = entry.drama;
     final episode = _resolvedEpisode(index);
     final selected = index == logic.session.currentIndex;
-    final locked =
-        logic.isEpisodeLocked(episode) ||
-        logic.session.isLocked ||
-        logic.blockedEpisodeId == episode.id;
+    final locked = logic.isEpisodeBlockedFor(episode, index);
     // Selection changes before the prepared slot is promoted. Use its controller
     // throughout the handoff instead of briefly falling back to a placeholder.
     final port = locked
@@ -1258,7 +1287,8 @@ class _PlayerPageState extends State<PlayerPage>
         if (widget.homeMode && !_chromeVisible && !_boosting && !_scrubbing)
           Positioned(
             right: 12,
-            bottom: 56,
+            // 进度条触控带 16pt + 8pt 间距，退出清屏按钮贴着进度条上方。
+            bottom: 24,
             child: ExitClearScreenButton(
               key: const Key('home-feed-exit-clear-screen'),
               tooltip: l10n.exitClearScreen,
@@ -1294,10 +1324,7 @@ class _PlayerPageState extends State<PlayerPage>
     final drama = entry.drama;
     final episode = _resolvedEpisode(index);
     final selected = index == logic.session.currentIndex;
-    final locked =
-        logic.isEpisodeLocked(episode) ||
-        logic.session.isLocked ||
-        logic.blockedEpisodeId == episode.id;
+    final locked = logic.isEpisodeBlockedFor(episode, index);
     final port = locked
         ? null
         : (selected ? logic.session.active : null) ??

lib/pages/player/widgets/drama_info_sheet.dart

@@ -0,0 +1,571 @@
+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import '../../../core/data/models/drama.dart';
+import '../../../core/formatting/count_format.dart';
+import '../../../core/formatting/localized_content.dart';
+import '../../../core/theme/app_colors.dart';
+import '../../../core/theme/app_dimens.dart';
+import '../../../core/widgets/app_glow_panel.dart';
+import '../../../core/widgets/auth_gate.dart';
+import '../../../core/widgets/remote_image.dart';
+import '../../../l10n/app_localizations.dart';
+import '../../../core/data/services/catalog_controller.dart';
+import '../../../core/data/services/favorite_controller.dart';
+import 'episode_picker_cell.dart';
+
+const int _columns = 6;
+const double _sheetHeightFactor = 0.62;
+const double _cellAspect = 1.05;
+const double _sheetRadius = 20;
+const double _pageHorizontal = 20;
+const double _tabGap = 20;
+const double _posterWidth = 86;
+const double _posterRadius = 8;
+const double _relatedWidth = 104;
+const double _relatedGap = 10;
+const int _synopsisLines = 3;
+const int _maxTags = 4;
+const int _maxRelated = 8;
+final RegExp _tagSplitter = RegExp(r'[,/、·]');
+
+const TextStyle _synopsisStyle = TextStyle(
+  color: AppColors.textPrimary,
+  fontSize: 14,
+  height: 1.55,
+);
+
+/// 弹窗页签：简介 / 选集。
+enum DramaInfoTab { detail, episodes }
+
+/// 播放页的剧名弹窗：简介与选集在同一个面板内切换，不再跳转详情页。
+///
+/// 布局：拖拽条 → 页签 + 关闭 → 内容（海报信息块 / 选集网格）。
+class DramaInfoSheet extends StatefulWidget {
+  const DramaInfoSheet({
+    super.key,
+    required this.drama,
+    required this.currentNumber,
+    required this.onSelectEpisode,
+    this.onOpenRelated,
+    this.initialTab = DramaInfoTab.detail,
+  });
+
+  final Drama drama;
+
+  /// 当前播放集号，用于选集网格高亮。
+  final int currentNumber;
+
+  /// 点击某集，参数为该集在原始列表中的索引。
+  final ValueChanged<int> onSelectEpisode;
+
+  /// 点相似推荐里的短剧，交给外层决定怎么打开。
+  final ValueChanged<Drama>? onOpenRelated;
+
+  final DramaInfoTab initialTab;
+
+  @override
+  State<DramaInfoSheet> createState() => _DramaInfoSheetState();
+}
+
+class _DramaInfoSheetState extends State<DramaInfoSheet> {
+  late DramaInfoTab _tab = widget.initialTab;
+  bool _synopsisExpanded = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return AnnotatedRegion<SystemUiOverlayStyle>(
+      key: const Key('drama-info-system-overlay'),
+      value: SystemUiOverlayStyle.light.copyWith(
+        statusBarColor: AppColors.transparent,
+        systemNavigationBarColor: AppColors.card,
+        systemNavigationBarDividerColor: AppColors.transparent,
+        systemNavigationBarIconBrightness: Brightness.light,
+        systemNavigationBarContrastEnforced: false,
+      ),
+      child: AppGlowPanel(
+        borderRadius: const BorderRadius.vertical(
+          top: Radius.circular(_sheetRadius),
+        ),
+        border: false,
+        child: Container(
+          key: const Key('drama-info-sheet'),
+          height: MediaQuery.sizeOf(context).height * _sheetHeightFactor,
+          decoration: const BoxDecoration(color: AppColors.transparent),
+          child: SafeArea(
+            top: false,
+            bottom: true,
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _grabber(),
+                _headerRow(AppLocalizations.of(context)!),
+                Expanded(
+                  child: _tab == DramaInfoTab.detail
+                      ? _detailPane()
+                      : _episodePane(),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _grabber() {
+    return Center(
+      child: Container(
+        width: 36,
+        height: 4,
+        margin: const EdgeInsets.only(top: 8),
+        decoration: BoxDecoration(
+          color: AppColors.border,
+          borderRadius: BorderRadius.circular(2),
+        ),
+      ),
+    );
+  }
+
+  Widget _headerRow(AppLocalizations l10n) {
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(_pageHorizontal, 6, 8, 2),
+      child: Row(
+        children: [
+          _tabButton(
+            key: const Key('drama-info-tab-detail'),
+            label: l10n.synopsisTitle,
+            tab: DramaInfoTab.detail,
+          ),
+          const SizedBox(width: _tabGap),
+          _tabButton(
+            key: const Key('drama-info-tab-episodes'),
+            label: l10n.episodes,
+            tab: DramaInfoTab.episodes,
+          ),
+          const Spacer(),
+          _closeButton(l10n),
+        ],
+      ),
+    );
+  }
+
+  /// 视觉上是个小圆钮，点按区域仍是 40pt，避免太小点不中。
+  Widget _closeButton(AppLocalizations l10n) {
+    return SizedBox(
+      key: const Key('drama-info-close'),
+      width: 40,
+      height: 40,
+      child: Center(
+        child: Semantics(
+          button: true,
+          label: l10n.close,
+          child: Material(
+            color: AppColors.raised,
+            shape: const CircleBorder(),
+            clipBehavior: Clip.antiAlias,
+            child: InkWell(
+              onTap: () => Navigator.pop(context),
+              child: const SizedBox(
+                width: 24,
+                height: 24,
+                child: Icon(
+                  Icons.close_rounded,
+                  size: 14,
+                  color: AppColors.onPrimary,
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _tabButton({
+    required Key key,
+    required String label,
+    required DramaInfoTab tab,
+  }) {
+    final selected = _tab == tab;
+    return GestureDetector(
+      key: key,
+      behavior: HitTestBehavior.opaque,
+      onTap: () {
+        if (_tab != tab) setState(() => _tab = tab);
+      },
+      child: Padding(
+        padding: const EdgeInsets.symmetric(vertical: 6),
+        child: Text(
+          label,
+          style: TextStyle(
+            color: selected ? AppColors.onSurface : AppColors.muted,
+            fontSize: 18,
+            fontWeight: selected ? FontWeight.w800 : FontWeight.w600,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _detailPane() {
+    final l10n = AppLocalizations.of(context)!;
+    final drama = widget.drama;
+    final tags = _tagValues(
+      drama,
+      Localizations.localeOf(context).languageCode,
+    );
+    final related = _relatedDramas();
+    return ListView(
+      key: const Key('drama-info-detail'),
+      padding: const EdgeInsets.fromLTRB(
+        _pageHorizontal,
+        12,
+        _pageHorizontal,
+        28,
+      ),
+      children: [
+        _headline(l10n, drama),
+        const SizedBox(height: 16),
+        _synopsis(l10n, drama),
+        if (tags.isNotEmpty) ...[const SizedBox(height: 14), _tagRow(tags)],
+        const SizedBox(height: 20),
+        _favoriteButton(l10n, drama),
+        if (related.isNotEmpty) ...[
+          const SizedBox(height: 26),
+          _relatedSection(l10n, related),
+        ],
+      ],
+    );
+  }
+
+  /// 海报 + 剧名 + 热度。
+  Widget _headline(AppLocalizations l10n, Drama drama) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        ClipRRect(
+          borderRadius: BorderRadius.circular(_posterRadius),
+          child: SizedBox(
+            width: _posterWidth,
+            child: AspectRatio(
+              aspectRatio: 3 / 4,
+              child: RemoteImage(
+                drama.posterUrl,
+                fit: BoxFit.cover,
+                showFallbackIcon: true,
+              ),
+            ),
+          ),
+        ),
+        const SizedBox(width: 14),
+        Expanded(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                localizedDramaTitle(l10n, drama),
+                key: const Key('drama-info-title'),
+                maxLines: 2,
+                overflow: TextOverflow.ellipsis,
+                style: const TextStyle(
+                  color: AppColors.onSurface,
+                  fontSize: 20,
+                  fontWeight: FontWeight.w800,
+                  height: 1.25,
+                ),
+              ),
+              const SizedBox(height: 8),
+              Row(
+                children: [
+                  const Icon(
+                    Icons.local_fire_department_rounded,
+                    size: 16,
+                    color: AppColors.blue,
+                  ),
+                  const SizedBox(width: 4),
+                  Text(
+                    formatInteractionCount(drama.viewCount),
+                    style: const TextStyle(
+                      color: AppColors.onSurface,
+                      fontSize: 13,
+                      fontWeight: FontWeight.w600,
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Text(
+                    l10n.episodeCountLabel(drama.episodeCount),
+                    style: const TextStyle(
+                      color: AppColors.muted,
+                      fontSize: 13,
+                    ),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _synopsis(AppLocalizations l10n, Drama drama) {
+    final synopsis = localizedDramaSynopsis(l10n, drama).trim();
+    if (synopsis.isEmpty) return const SizedBox.shrink();
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        final painter = TextPainter(
+          text: TextSpan(text: synopsis, style: _synopsisStyle),
+          maxLines: _synopsisLines,
+          textDirection: TextDirection.ltr,
+        )..layout(maxWidth: constraints.maxWidth);
+        final overflows = painter.didExceedMaxLines;
+        return Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              synopsis,
+              key: const Key('drama-info-synopsis'),
+              maxLines: _synopsisExpanded ? null : _synopsisLines,
+              overflow: _synopsisExpanded
+                  ? TextOverflow.visible
+                  : TextOverflow.ellipsis,
+              style: _synopsisStyle,
+            ),
+            if (overflows)
+              GestureDetector(
+                key: const Key('drama-info-synopsis-toggle'),
+                onTap: () =>
+                    setState(() => _synopsisExpanded = !_synopsisExpanded),
+                child: Padding(
+                  padding: const EdgeInsets.only(top: 4),
+                  child: Text(
+                    _synopsisExpanded ? l10n.showLess : l10n.expandSynopsis,
+                    style: const TextStyle(
+                      color: AppColors.textPrimary,
+                      fontSize: 13,
+                      fontWeight: FontWeight.w700,
+                    ),
+                  ),
+                ),
+              ),
+          ],
+        );
+      },
+    );
+  }
+
+  Widget _tagRow(List<String> tags) {
+    return Wrap(
+      key: const Key('drama-info-tags'),
+      spacing: 8,
+      runSpacing: 8,
+      children: [
+        for (final tag in tags)
+          Container(
+            padding: const EdgeInsets.fromLTRB(10, 5, 4, 5),
+            decoration: BoxDecoration(
+              color: AppColors.raised,
+              borderRadius: BorderRadius.circular(6),
+            ),
+            child: Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Text(
+                  tag,
+                  style: const TextStyle(
+                    color: AppColors.textPrimary,
+                    fontSize: 12,
+                    fontWeight: FontWeight.w500,
+                  ),
+                ),
+                const Icon(
+                  Icons.chevron_right_rounded,
+                  size: 14,
+                  color: AppColors.subtle,
+                ),
+              ],
+            ),
+          ),
+      ],
+    );
+  }
+
+  Widget _favoriteButton(AppLocalizations l10n, Drama drama) {
+    final favorites = context.watch<FavoriteController>();
+    final saved = favorites.isSaved(drama.id);
+    return SizedBox(
+      height: 48,
+      child: Material(
+        color: AppColors.raised,
+        borderRadius: BorderRadius.circular(12),
+        child: InkWell(
+          key: const Key('drama-info-favorite'),
+          borderRadius: BorderRadius.circular(12),
+          onTap: () => unawaited(_toggleFavorite(l10n, drama)),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Icon(
+                saved ? Icons.bookmark_rounded : Icons.bookmark_border_rounded,
+                size: 20,
+                color: AppColors.onPrimary,
+              ),
+              const SizedBox(width: 8),
+              Text(
+                l10n.favorite,
+                style: const TextStyle(
+                  color: AppColors.onPrimary,
+                  fontSize: 15,
+                  fontWeight: FontWeight.w700,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _relatedSection(AppLocalizations l10n, List<Drama> related) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          l10n.similarDramas,
+          style: const TextStyle(
+            color: AppColors.onSurface,
+            fontSize: 17,
+            fontWeight: FontWeight.w800,
+          ),
+        ),
+        const SizedBox(height: 12),
+        SizedBox(
+          height: _relatedWidth / 3 * 4 + 8,
+          child: ListView.separated(
+            key: const Key('drama-info-related'),
+            scrollDirection: Axis.horizontal,
+            itemCount: related.length,
+            separatorBuilder: (_, _) => const SizedBox(width: _relatedGap),
+            itemBuilder: (context, index) {
+              final drama = related[index];
+              return GestureDetector(
+                key: Key('drama-info-related-${drama.id}'),
+                onTap: () {
+                  Navigator.pop(context);
+                  widget.onOpenRelated?.call(drama);
+                },
+                child: ClipRRect(
+                  borderRadius: BorderRadius.circular(10),
+                  child: SizedBox(
+                    width: _relatedWidth,
+                    child: AspectRatio(
+                      aspectRatio: 3 / 4,
+                      child: RemoteImage(
+                        drama.posterUrl,
+                        fit: BoxFit.cover,
+                        showFallbackIcon: true,
+                      ),
+                    ),
+                  ),
+                ),
+              );
+            },
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _episodePane() {
+    final l10n = AppLocalizations.of(context)!;
+    final episodes = widget.drama.episodes;
+    if (episodes.isEmpty) {
+      return Center(
+        child: Text(
+          l10n.noEpisodesYet,
+          key: const Key('drama-info-no-episodes'),
+          style: const TextStyle(color: AppColors.muted, fontSize: 13),
+        ),
+      );
+    }
+    return GridView.builder(
+      key: const Key('drama-info-episodes'),
+      padding: const EdgeInsets.fromLTRB(
+        _pageHorizontal,
+        8,
+        _pageHorizontal,
+        12,
+      ),
+      gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+        crossAxisCount: _columns,
+        mainAxisSpacing: AppDimens.spaceSm,
+        crossAxisSpacing: AppDimens.spaceSm,
+        childAspectRatio: _cellAspect,
+      ),
+      itemCount: episodes.length,
+      itemBuilder: (context, index) {
+        final episode = episodes[index];
+        return EpisodePickerCell(
+          key: Key('player-episode-${episode.number}'),
+          episode: episode,
+          selected: episode.number == widget.currentNumber,
+          lockLabel: l10n.locked,
+          onTap: () {
+            Navigator.pop(context);
+            widget.onSelectEpisode(index);
+          },
+        );
+      },
+    );
+  }
+
+  Future<void> _toggleFavorite(AppLocalizations l10n, Drama drama) async {
+    final favorites = context.read<FavoriteController>();
+    final ok = await favorites.toggle(drama.id, card: drama);
+    if (ok || !mounted) return;
+    if (favorites.lastErrorCode == 200007) {
+      await ensureSignedIn(context);
+      return;
+    }
+    ScaffoldMessenger.of(
+      context,
+    ).showSnackBar(SnackBar(content: Text(l10n.favoriteToggleFailed)));
+  }
+
+  /// 相似推荐先用目录里的其它剧兜底，没有目录来源就不显示这一块。
+  List<Drama> _relatedDramas() {
+    final CatalogController catalog;
+    try {
+      catalog = context.read<CatalogController>();
+    } on ProviderNotFoundException {
+      return const [];
+    }
+    return catalog.dramas
+        .where((item) => item.id != widget.drama.id)
+        .take(_maxRelated)
+        .toList(growable: false);
+  }
+
+  List<String> _tagValues(Drama drama, String languageCode) {
+    final localized = drama.localizedTypeLabels(languageCode);
+    if (localized.isNotEmpty) {
+      return localized.take(_maxTags).toList(growable: false);
+    }
+    final result = <String>[];
+    for (final source in [drama.genre, drama.category]) {
+      for (final part in source.split(_tagSplitter)) {
+        final tag = part.trim();
+        if (tag.isEmpty || result.contains(tag)) continue;
+        result.add(tag);
+        if (result.length == _maxTags) return result;
+      }
+    }
+    return result;
+  }
+}

lib/pages/player/widgets/episode_picker_sheet.dart

@@ -1,147 +0,0 @@
-// Author: fruit.com.cn
-
-import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-
-import '../../../core/data/models/drama.dart';
-import '../../../core/formatting/localized_content.dart';
-import '../../../core/theme/app_colors.dart';
-import '../../../core/theme/app_dimens.dart';
-import '../../../core/widgets/app_glow_panel.dart';
-import '../../../l10n/app_localizations.dart';
-import 'episode_picker_cell.dart';
-
-const int _columns = 6;
-const double _sheetHeightFactor = 0.52;
-const double _cellAspect = 1.05;
-const double _sheetRadius = 20;
-
-/// K28 选集面板：六列等宽网格、当前集高亮、锁定集显示锁标。
-class EpisodePickerSheet extends StatelessWidget {
-  /// 创建选集面板。
-  const EpisodePickerSheet({
-    super.key,
-    required this.drama,
-    required this.currentNumber,
-    required this.onSelect,
-  });
-
-  /// 当前短剧。
-  final Drama drama;
-
-  /// 当前集号。
-  final int currentNumber;
-
-  /// 点击某集，参数为该集在原始列表中的索引。
-  final ValueChanged<int> onSelect;
-
-  @override
-  Widget build(BuildContext context) {
-    final l10n = AppLocalizations.of(context)!;
-    final episodes = drama.episodes;
-    return AnnotatedRegion<SystemUiOverlayStyle>(
-      key: const Key('player-episodes-system-overlay'),
-      value: SystemUiOverlayStyle.light.copyWith(
-        statusBarColor: AppColors.transparent,
-        systemNavigationBarColor: AppColors.card,
-        systemNavigationBarDividerColor: AppColors.transparent,
-        systemNavigationBarIconBrightness: Brightness.light,
-        systemNavigationBarContrastEnforced: false,
-      ),
-      child: AppGlowPanel(
-        borderRadius: const BorderRadius.vertical(
-          top: Radius.circular(_sheetRadius),
-        ),
-        border: false,
-        child: Container(
-          key: const Key('player-episodes-sheet'),
-          height: MediaQuery.sizeOf(context).height * _sheetHeightFactor,
-          decoration: const BoxDecoration(color: AppColors.transparent),
-          child: SafeArea(
-          top: false,
-          bottom: true,
-          child: Column(
-            crossAxisAlignment: CrossAxisAlignment.start,
-            children: [
-              Padding(
-                padding: const EdgeInsets.fromLTRB(20, 14, 8, 4),
-                child: Row(
-                  children: [
-                    Expanded(
-                      child: Text(
-                        l10n.episodes,
-                        style: const TextStyle(
-                          color: AppColors.onSurface,
-                          fontSize: 20,
-                          fontWeight: FontWeight.w800,
-                        ),
-                      ),
-                    ),
-                    IconButton(
-                      key: const Key('player-episodes-close'),
-                      tooltip: l10n.close,
-                      onPressed: () => Navigator.pop(context),
-                      icon: const Icon(Icons.close_rounded),
-                    ),
-                  ],
-                ),
-              ),
-              Padding(
-                padding: const EdgeInsets.fromLTRB(20, 0, 20, 12),
-                child: Row(
-                  children: [
-                    Expanded(
-                      child: Text(
-                        localizedDramaTitle(l10n, drama),
-                        maxLines: 1,
-                        overflow: TextOverflow.ellipsis,
-                        style: const TextStyle(
-                          color: AppColors.onSurface,
-                          fontSize: 14,
-                          fontWeight: FontWeight.w600,
-                        ),
-                      ),
-                    ),
-                    Text(
-                      l10n.episodeCountLabel(episodes.length),
-                      style: const TextStyle(
-                        color: AppColors.muted,
-                        fontSize: 12,
-                      ),
-                    ),
-                  ],
-                ),
-              ),
-              Expanded(
-                child: GridView.builder(
-                  padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
-                  gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
-                    crossAxisCount: _columns,
-                    mainAxisSpacing: AppDimens.spaceSm,
-                    crossAxisSpacing: AppDimens.spaceSm,
-                    childAspectRatio: _cellAspect,
-                  ),
-                  itemCount: episodes.length,
-                  itemBuilder: (context, index) {
-                    final episode = episodes[index];
-                    return EpisodePickerCell(
-                      key: Key('player-episode-${episode.number}'),
-                      episode: episode,
-                      selected: episode.number == currentNumber,
-                      lockLabel: l10n.locked,
-                      onTap: () {
-                        Navigator.pop(context);
-                        onSelect(index);
-                      },
-                    );
-                  },
-                ),
-              ),
-            ],
-          ),
-        ),
-        ),
-      ),
-    );
-  }
-}

lib/pages/player/widgets/exit_clear_screen_button.dart

@@ -4,6 +4,10 @@ import 'package:flutter/material.dart';
 
 import '../../../core/theme/app_colors.dart';
 
+const List<Shadow> _iconShadows = [
+  Shadow(color: AppColors.shadow, blurRadius: 6, offset: Offset(0, 1)),
+];
+
 /// Shared floating action used to leave clear-screen mode.
 class ExitClearScreenButton extends StatelessWidget {
   const ExitClearScreenButton({
@@ -25,11 +29,15 @@ class ExitClearScreenButton extends StatelessWidget {
         onPressed: onPressed,
         padding: EdgeInsets.zero,
         style: IconButton.styleFrom(
-          backgroundColor: AppColors.controlScrim,
+          backgroundColor: AppColors.transparent,
           foregroundColor: AppColors.onPrimary,
           shape: const CircleBorder(),
         ),
-        icon: const Icon(Icons.fullscreen_exit_rounded, size: 18),
+        icon: const Icon(
+          Icons.fullscreen_exit_rounded,
+          size: 22,
+          shadows: _iconShadows,
+        ),
       ),
     );
   }

lib/pages/player/widgets/home_feed_overlay.dart

@@ -21,13 +21,16 @@ import 'scrub_preview_card.dart';
 part 'home_feed_overlay_parts.dart';
 
 const double _progressHeight = 2;
-const double _progressHitHeight = 32;
+
+/// 进度条触控带高度：没有滑块圆点后收到 16pt，够手指按住这条线拖动。
+const double _progressHitHeight = 16;
 const double _pageHorizontal = 20;
 const double _railRight = 14;
 const double _railGap = 12;
-// 观看条高 44；2pt 进度线视觉上沿距观看条顶约 7pt（线中心距进度条盒底 8）。
-// 信息面板底边取 44+16=60，使简介↔进度线、进度线↔观看条两侧间距均为 7pt。
-const double _bottomInfoInset = homeFeedWatchAllHeight + 16;
+// 进度线贴着屏幕底部（线心距底 4pt），观看条底边只留 8pt，视觉上就是线上一根条。
+const double _watchAllBottomInset = 8;
+// 信息面板底边直接贴住观看条顶沿，中间不留缝。
+const double _bottomInfoInset = _watchAllBottomInset + homeFeedWatchAllHeight;
 const double _railBottomOffset = 40;
 const Duration _overlayFadeDuration = Duration(milliseconds: 120);
 const List<Shadow> _boostTextShadows = [
@@ -152,7 +155,7 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
           Positioned(
             left: 0,
             right: 0,
-            bottom: homeFeedWatchAllHeight + 12,
+            bottom: _watchAllBottomInset + homeFeedWatchAllHeight + 12,
             child: AnimatedOpacity(
               duration: _overlayFadeDuration,
               opacity: widget.boosting ? 1 : 0,
@@ -162,10 +165,30 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
               ),
             ),
           ),
+          // 观看条在下、进度条在上：进度条 32pt 触控盒要盖住观看条下沿的空白，
+          // 否则拖拽 seek 的起点会被观看条吞掉。两块的可见区域（文字/进度线）互不遮挡。
           Positioned(
             left: _pageHorizontal,
             right: _pageHorizontal,
-            bottom: homeFeedWatchAllHeight,
+            bottom: _watchAllBottomInset,
+            child: AnimatedOpacity(
+              duration: _overlayFadeDuration,
+              opacity: widget.visible && !_scrubbing && !widget.boosting
+                  ? 1
+                  : 0,
+              child: IgnorePointer(
+                ignoring: !widget.visible || _scrubbing || widget.boosting,
+                child: HomeFeedWatchAllBar(
+                  drama: widget.drama,
+                  onTap: widget.onOpenFullPlayer,
+                ),
+              ),
+            ),
+          ),
+          Positioned(
+            left: _pageHorizontal,
+            right: _pageHorizontal,
+            bottom: 0,
             child: _FeedProgressBar(
               controller: widget.controller,
               locked: widget.locked,
@@ -182,27 +205,7 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
               onSeek: widget.onSeek,
             ),
           ),
-          Positioned(
-            left: 0,
-            right: 0,
-            bottom: 0,
-            child: AnimatedOpacity(
-              duration: _overlayFadeDuration,
-              opacity: widget.visible && !_scrubbing && !widget.boosting
-                  ? 1
-                  : 0,
-              child: IgnorePointer(
-                ignoring: !widget.visible || _scrubbing || widget.boosting,
-                child: HomeFeedWatchAllBar(
-                  drama: widget.drama,
-                  onTap: widget.onOpenFullPlayer,
-                ),
-              ),
-            ),
-          ),
-          // 信息面板放在最后（最上层）：进度条 32px 触控盒向上伸进底部避让区，
-          // 若面板在前，简介/展开按钮底部的触控留白会被进度条吞掉点击。
-          // 视觉上避让条带为空，提层不改变观感。
+          // 信息面板放在最后（最上层），底部避让区永远优先响应简介/展开按钮的点击。
           Positioned(
             left: _pageHorizontal,
             right: _railRight,

lib/pages/player/widgets/home_feed_overlay_parts.dart

@@ -2,10 +2,9 @@
 
 part of 'home_feed_overlay.dart';
 
-const double _thumbSize = 6;
-const double _thumbActiveSize = 14;
 const double _trackActiveHeight = 6;
-const double _lineCenterFromBottom = 8;
+// 进度线贴住屏幕底部（线心距底 4pt）；播放进度只靠蓝色已播段表达，不画滑块圆点。
+const double _lineCenterFromBottom = 4;
 const double _timeBubbleWidth = 96;
 const double _timeBubbleMargin = 12;
 const Key _inactiveTrackKey = Key('home-feed-progress-inactive');
@@ -305,7 +304,7 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
               height: widget.height,
               child: ColoredBox(
                 key: _inactiveTrackKey,
-                color: AppColors.border,
+                color: AppColors.inactiveTrack,
               ),
             ),
           ),
@@ -345,20 +344,11 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
   Widget _track(double fraction, double width) {
     final dragging = _preview != null;
     final trackHeight = dragging ? _trackActiveHeight : widget.height;
-    final size = dragging ? _thumbActiveSize : _thumbSize;
-    final finger = (width * fraction).clamp(0.0, width).toDouble();
-    final thumbSlotLeft = dragging
-        ? finger - _thumbActiveSize / 2
-        : (finger - _thumbActiveSize / 2)
-              .clamp(0.0, width - _thumbActiveSize)
-              .toDouble();
-    final playedWidth = dragging ? finger : width * fraction;
+    final playedWidth = (width * fraction).clamp(0.0, width).toDouble();
     final trackSlotBottom = _lineCenterFromBottom - _trackActiveHeight / 2;
-    final thumbSlotBottom = _lineCenterFromBottom - _thumbActiveSize / 2;
     return SizedBox(
       height: widget.hitHeight,
       child: Stack(
-        clipBehavior: Clip.none,
         children: [
           Positioned(
             left: 0,
@@ -374,7 +364,8 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
                       key: const Key('home-feed-progress-track'),
                       width: width,
                       height: trackHeight,
-                      color: AppColors.border,
+                      // 和剧集播放页进度条共用同一个槽底色，两个入口观感一致。
+                      color: AppColors.inactiveTrack,
                     ),
                   ),
                   Align(
@@ -390,24 +381,6 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
               ),
             ),
           ),
-          Positioned(
-            left: thumbSlotLeft,
-            bottom: thumbSlotBottom,
-            child: SizedBox.square(
-              dimension: _thumbActiveSize,
-              child: Center(
-                child: Container(
-                  key: const Key('home-feed-progress-thumb'),
-                  width: size,
-                  height: size,
-                  decoration: const BoxDecoration(
-                    color: AppColors.onPrimary,
-                    shape: BoxShape.circle,
-                  ),
-                ),
-              ),
-            ),
-          ),
         ],
       ),
     );

lib/pages/player/widgets/home_feed_recommend_panel.dart

@@ -13,7 +13,14 @@ import 'interaction_rail.dart';
 const double _seriesFont = 17;
 const double _tagFont = 12;
 const double _synopsisFont = 14;
-const double _watchAllHeight = 44;
+const double _watchAllHeight = 38;
+
+/// 观看条内部左右留白与圆角：外沿由 overlay 按页面边距对齐，内部不再重复内缩。
+const double _watchAllInset = 12;
+const double _watchAllRadius = 12;
+
+/// 标题、标签、简介之间的行间距：底部信息本来就挤，留 4pt 够分层。
+const double _blockGap = 4;
 const List<Shadow> _textShadows = [
   Shadow(color: AppColors.shadow, blurRadius: 6, offset: Offset(0, 1)),
 ];
@@ -57,6 +64,7 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
     final dramaTitle = localizedDramaTitle(l10n, widget.drama);
     final synopsis = localizedDramaSynopsis(l10n, widget.drama).trim();
     final genres = _genreValues(Localizations.localeOf(context).languageCode);
+    final tags = _tagChips(l10n, genres);
     return Column(
       key: const Key('home-feed-info-panel'),
       mainAxisSize: MainAxisSize.min,
@@ -104,18 +112,21 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
             ],
           ),
         ),
-        const SizedBox(height: 6),
-        _tagMetaRow(l10n, genres),
+        // 没有标签就整行跳过，不给标题和简介之间留空档。
+        if (tags.isNotEmpty) ...[
+          const SizedBox(height: _blockGap),
+          _tagRow(tags),
+        ],
         if (synopsis.isNotEmpty) ...[
-          const SizedBox(height: 8),
+          const SizedBox(height: _blockGap),
           _synopsis(l10n, synopsis),
         ],
       ],
     );
   }
 
-  Widget _tagMetaRow(AppLocalizations l10n, List<String> genres) {
-    final chips = <Widget>[
+  List<Widget> _tagChips(AppLocalizations l10n, List<String> genres) {
+    return [
       if (isHotDrama(widget.drama))
         _TagChip(
           key: const Key('home-feed-hot-badge'),
@@ -125,6 +136,9 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
       for (final genre in genres)
         _TagChip(key: Key('home-feed-tag-$genre'), label: genre),
     ];
+  }
+
+  Widget _tagRow(List<Widget> chips) {
     return SizedBox(
       key: const Key('home-feed-tags'),
       height: 22,
@@ -149,10 +163,7 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
     );
     final span = TextSpan(
       children: [
-        TextSpan(
-          text: prefix,
-          style: baseStyle,
-        ),
+        TextSpan(text: prefix, style: baseStyle),
         TextSpan(
           text: ' | ',
           style: baseStyle.copyWith(
@@ -368,7 +379,7 @@ class _TagChip extends StatelessWidget {
   }
 }
 
-/// 底部通栏条：🎬 观看完整剧集  全 N 集。
+/// 底部「观看完整剧集」条：浮在底部，不再铺满整屏宽度。
 class HomeFeedWatchAllBar extends StatelessWidget {
   const HomeFeedWatchAllBar({
     super.key,
@@ -382,42 +393,45 @@ class HomeFeedWatchAllBar extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
-    return Material(
-      key: const Key('home-feed-full-series-bg'),
-      color: AppColors.textPrimary.withValues(alpha: 0.15),
-      child: InkWell(
-        key: const Key('home-feed-full-series'),
-        onTap: onTap,
-        child: SizedBox(
-          height: _watchAllHeight,
-          child: Padding(
-            padding: const EdgeInsets.symmetric(horizontal: 20),
-            child: Row(
-              children: [
-                const Icon(
-                  Icons.movie_rounded,
-                  size: 22,
-                  color: AppColors.onPrimary,
-                ),
-                const SizedBox(width: 10),
-                Expanded(
-                  child: Text(
-                    l10n.watchFullSeries('${drama.episodeCount}'),
-                    maxLines: 1,
-                    overflow: TextOverflow.ellipsis,
-                    style: const TextStyle(
-                      color: AppColors.textPrimary,
-                      fontSize: 15,
-                      fontWeight: FontWeight.w500,
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(_watchAllRadius),
+      child: Material(
+        key: const Key('home-feed-full-series-bg'),
+        color: AppColors.textPrimary.withValues(alpha: 0.15),
+        child: InkWell(
+          key: const Key('home-feed-full-series'),
+          onTap: onTap,
+          child: SizedBox(
+            height: _watchAllHeight,
+            child: Padding(
+              padding: const EdgeInsets.symmetric(horizontal: _watchAllInset),
+              child: Row(
+                children: [
+                  const Icon(
+                    Icons.movie_rounded,
+                    size: 22,
+                    color: AppColors.onPrimary,
+                  ),
+                  const SizedBox(width: 10),
+                  Expanded(
+                    child: Text(
+                      l10n.watchFullSeries('${drama.episodeCount}'),
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
+                      style: const TextStyle(
+                        color: AppColors.textPrimary,
+                        fontSize: 15,
+                        fontWeight: FontWeight.w500,
+                      ),
                     ),
                   ),
-                ),
-                const Icon(
-                  Icons.chevron_right_rounded,
-                  size: 22,
-                  color: AppColors.textPrimary,
-                ),
-              ],
+                  const Icon(
+                    Icons.chevron_right_rounded,
+                    size: 22,
+                    color: AppColors.textPrimary,
+                  ),
+                ],
+              ),
             ),
           ),
         ),

lib/pages/player/widgets/player_center_toggle.dart

@@ -6,7 +6,9 @@ import '../../../core/theme/app_colors.dart';
 
 const double _toggleSize = 68;
 const double _iconSize = 36;
-const Color _toggleBackground = AppColors.controlSoftScrim;
+
+/// 播放/暂停压在画面上，垫一层半透明深色圆底保证亮画面下也能看见。
+const Color _toggleBackground = Color(0x66000000);
 const List<Shadow> _iconShadows = [
   Shadow(color: AppColors.shadow, blurRadius: 12),
 ];

lib/pages/player/widgets/player_overlay.dart

@@ -19,8 +19,17 @@ import 'seek_progress_bar.dart';
 
 part 'player_overlay_parts.dart';
 
-const double _topButtonSize = 36;
+const double _topButtonSize = 40;
 const double _topBarHeight = 58;
+
+/// 底部信息、选集条、进度条之间的统一行距。
+const double _blockGap = 8;
+
+/// 底部选集条与右侧清屏按钮的统一高度，两者必须等高。
+const double _bottomActionHeight = 34;
+
+/// 选集条内部左右留白。
+const double _bottomActionInset = 10;
 const double _boostHintIconSize = 16;
 const double _boostHintFontSize = 13;
 const double _synopsisRailInset = 54;
@@ -107,11 +116,12 @@ class PlayerPlaybackOverlay extends StatelessWidget {
                     key: const Key('player-back'),
                     tooltip: data.l10n.backToSeries,
                     icon: Icons.chevron_left_rounded,
+                    iconSize: 30,
                     onPressed: actions.onBack!,
                   )
                 else
                   const SizedBox(width: _topButtonSize),
-                const SizedBox(width: 8),
+                const SizedBox(width: 2),
                 Expanded(
                   child: Text(
                     data.l10n.episodeLabel(data.episode.number),
@@ -135,7 +145,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
                 _TopButton(
                   key: const Key('player-more'),
                   tooltip: data.l10n.more,
-                  icon: Icons.more_vert_rounded,
+                  icon: Icons.more_horiz_rounded,
                   onPressed: actions.onMore,
                 ),
               ],
@@ -226,19 +236,20 @@ class PlayerPlaybackOverlay extends StatelessWidget {
             child: _bottomInfo(context),
           ),
           if (data.boosting) _boostHint(),
-          _bottomProgress(),
-          // 加速时收起底栏。拖动进度时底栏只隐藏，占位保留，进度条不挪位。
+          // 加速时收起选集条。拖动进度时只隐藏，占位保留，底部不跳动。
           scrubbing
               ? IgnorePointer(
                   child: Opacity(opacity: 0, child: _bottomActions()),
                 )
               : Offstage(offstage: data.boosting, child: _bottomActions()),
+          // 进度条压在最底部，和首页 feed 一致。
+          _bottomProgress(),
         ],
       ),
     );
   }
 
-  /// 加速提示：橙色小三角 + 当前倍速文案，悬在进度条上方。
+  /// 加速提示：橙色小三角 + 当前倍速文案，压在底部信息区下方。
   Widget _boostHint() {
     return Padding(
       key: const Key('player-speed-boost-hint'),
@@ -270,25 +281,28 @@ class PlayerPlaybackOverlay extends StatelessWidget {
   Widget _bottomInfo(BuildContext context) {
     final series = localizedDramaTitle(data.l10n, data.drama);
     final synopsis = localizedDramaSynopsis(data.l10n, data.drama);
+    // 右侧让出互动栏的宽度：剧名和简介一样，收在互动栏左侧，长标题也不会钻到按钮下面。
     return Padding(
       key: const Key('player-controls-bottom'),
-      padding: const EdgeInsets.fromLTRB(14, 8, 14, 0),
+      padding: const EdgeInsets.fromLTRB(
+        14,
+        _blockGap,
+        14 + _synopsisRailInset,
+        0,
+      ),
       child: Column(
         mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           _detailRow(series),
           const SizedBox(height: 4),
-          Padding(
-            padding: const EdgeInsets.only(right: _synopsisRailInset),
-            child: _EpisodeSynopsis(
-              key: const Key('player-episode-synopsis'),
-              l10n: data.l10n,
-              drama: data.drama,
-              episodeNumber: data.episode.number,
-              synopsis: synopsis,
-              authorNote: data.authorNote,
-            ),
+          _EpisodeSynopsis(
+            key: const Key('player-episode-synopsis'),
+            l10n: data.l10n,
+            drama: data.drama,
+            episodeNumber: data.episode.number,
+            synopsis: synopsis,
+            authorNote: data.authorNote,
           ),
         ],
       ),
@@ -296,9 +310,10 @@ class PlayerPlaybackOverlay extends StatelessWidget {
   }
 
   Widget _bottomProgress() {
+    // 进度条不贴底：底部留 16pt，线心离底边更远，也不再和选集条挤在一起。
     return Padding(
       key: const Key('player-progress-container'),
-      padding: EdgeInsets.fromLTRB(14, controlsVisible ? 2 : 8, 14, 0),
+      padding: const EdgeInsets.fromLTRB(14, 2, 14, 16),
       child: SeekProgressBar(
         key: const Key('player-progress'),
         valueListenable: data.controller,
@@ -345,10 +360,9 @@ class PlayerPlaybackOverlay extends StatelessWidget {
                   ),
                 ),
               ),
-              const SizedBox(width: 4),
               const Icon(
                 Icons.chevron_right_rounded,
-                color: AppColors.playerMuted,
+                color: AppColors.onPrimary,
                 size: 20,
                 shadows: _playerTextShadows,
               ),
@@ -362,55 +376,63 @@ class PlayerPlaybackOverlay extends StatelessWidget {
   Widget _bottomActions() {
     return Padding(
       key: const Key('player-bottom-actions'),
-      padding: const EdgeInsets.fromLTRB(14, 6, 14, 6),
+      padding: const EdgeInsets.fromLTRB(14, 2, 14, 0),
       child: Row(
         children: [
-          Expanded(
-            child: Material(
-              key: const Key('player-episodes-pill'),
-              color: AppColors.playerOverlayPill,
-              borderRadius: BorderRadius.circular(7),
-              clipBehavior: Clip.antiAlias,
-              child: InkWell(
-                key: const Key('player-episodes'),
-                onTap: actions.onEpisodes,
-                borderRadius: BorderRadius.circular(7),
-                child: Padding(
-                  padding: const EdgeInsets.symmetric(
-                    horizontal: 14,
-                    vertical: 8,
-                  ),
-                  child: Row(
-                    children: [
-                      Expanded(
-                        child: Text(
-                          '${data.l10n.episodes} · '
-                          '${data.l10n.allEpisodesBadge(data.totalEpisodes)} · '
-                          '${data.l10n.freeWatch}',
-                          maxLines: 1,
-                          overflow: TextOverflow.ellipsis,
-                          style: const TextStyle(
+          // 清屏后只留右下角的退出按钮，左侧选集条一起收起。
+          if (!controlsVisible)
+            const Spacer()
+          else ...[
+            Expanded(
+              // 选集条给一层浅底色：视频画面亮时纯文字不好认，也顺带标出可点区域。
+              child: Material(
+                key: const Key('player-episodes-pill'),
+                color: AppColors.textPrimary.withValues(alpha: 0.14),
+                borderRadius: BorderRadius.circular(8),
+                clipBehavior: Clip.antiAlias,
+                child: InkWell(
+                  key: const Key('player-episodes'),
+                  onTap: actions.onEpisodes,
+                  borderRadius: BorderRadius.circular(8),
+                  child: Padding(
+                    padding: const EdgeInsets.symmetric(
+                      horizontal: _bottomActionInset,
+                    ),
+                    child: SizedBox(
+                      height: _bottomActionHeight,
+                      child: Row(
+                        children: [
+                          Expanded(
+                            child: Text(
+                              '${data.l10n.episodes} · '
+                              '${data.l10n.allEpisodesBadge(data.totalEpisodes)} · '
+                              '${data.l10n.freeWatch}',
+                              maxLines: 1,
+                              overflow: TextOverflow.ellipsis,
+                              style: const TextStyle(
+                                color: AppColors.onPrimary,
+                                fontSize: 13.5,
+                                fontWeight: FontWeight.w800,
+                                shadows: _playerTextShadows,
+                              ),
+                            ),
+                          ),
+                          const SizedBox(width: 8),
+                          const Icon(
+                            Icons.keyboard_arrow_up_rounded,
                             color: AppColors.onPrimary,
-                            fontSize: 13.5,
-                            fontWeight: FontWeight.w800,
+                            size: 18,
                             shadows: _playerTextShadows,
                           ),
-                        ),
+                        ],
                       ),
-                      const SizedBox(width: 8),
-                      const Icon(
-                        Icons.keyboard_arrow_up_rounded,
-                        color: AppColors.onPrimary,
-                        size: 18,
-                        shadows: _playerTextShadows,
-                      ),
-                    ],
+                    ),
                   ),
                 ),
               ),
             ),
-          ),
-          const SizedBox(width: 8),
+            const SizedBox(width: 8),
+          ],
           _BottomIconButton(
             key: const Key('player-bottom-clear-screen'),
             tooltip: controlsVisible
@@ -419,6 +441,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
             icon: controlsVisible
                 ? Icons.fullscreen_rounded
                 : Icons.fullscreen_exit_rounded,
+            height: _bottomActionHeight,
             onPressed: controlsVisible ? actions.onClear : actions.onExitClear,
           ),
         ],

lib/pages/player/widgets/player_overlay_parts.dart

@@ -2,17 +2,20 @@
 
 part of 'player_overlay.dart';
 
+/// 顶部按钮：直接压在画面上，不加底色，靠文字/图标阴影保证可读性。
 class _TopButton extends StatelessWidget {
   const _TopButton({
     super.key,
     required this.tooltip,
     required this.icon,
     required this.onPressed,
+    this.iconSize = 22,
   });
 
   final String tooltip;
   final IconData icon;
   final VoidCallback onPressed;
+  final double iconSize;
 
   @override
   Widget build(BuildContext context) {
@@ -22,11 +25,11 @@ class _TopButton extends StatelessWidget {
         tooltip: tooltip,
         padding: EdgeInsets.zero,
         style: IconButton.styleFrom(
-          backgroundColor: AppColors.controlScrim,
+          backgroundColor: AppColors.transparent,
           foregroundColor: AppColors.onPrimary,
         ),
         onPressed: onPressed,
-        icon: Icon(icon, size: 18),
+        icon: Icon(icon, size: iconSize, shadows: _playerTextShadows),
       ),
     );
   }
@@ -41,7 +44,7 @@ class _SpeedEntry extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Material(
-      color: AppColors.controlScrim,
+      color: AppColors.transparent,
       borderRadius: BorderRadius.circular(999),
       child: InkWell(
         onTap: onTap,
@@ -81,25 +84,30 @@ class _BottomIconButton extends StatelessWidget {
     required this.tooltip,
     required this.icon,
     required this.onPressed,
+    this.height = 40,
   });
 
   final String tooltip;
   final IconData icon;
   final VoidCallback onPressed;
 
+  /// 与左侧选集条等高，两个控件底部齐平。
+  final double height;
+
   @override
   Widget build(BuildContext context) {
-    return SizedBox.square(
-      dimension: 40,
+    return SizedBox(
+      width: 40,
+      height: height,
       child: IconButton(
         tooltip: tooltip,
         padding: EdgeInsets.zero,
         style: IconButton.styleFrom(
-          backgroundColor: AppColors.playerOverlayPill,
+          backgroundColor: AppColors.transparent,
           foregroundColor: AppColors.onPrimary,
         ),
         onPressed: onPressed,
-        icon: Icon(icon, size: 22),
+        icon: Icon(icon, size: 24, shadows: _playerTextShadows),
       ),
     );
   }
@@ -242,8 +250,10 @@ class _EpisodeSynopsisState extends State<_EpisodeSynopsis> {
             ),
           ),
           const SizedBox(width: 2),
-          _toggle(widget.l10n.expandSynopsis,
-              padding: const EdgeInsets.only(left: 6)),
+          _toggle(
+            widget.l10n.expandSynopsis,
+            padding: const EdgeInsets.only(left: 6),
+          ),
         ],
       ),
     );
@@ -291,12 +301,12 @@ class _EpisodeSynopsisState extends State<_EpisodeSynopsis> {
   /// 分隔竖线：同字号 w400 + 45% 透明白，靠两侧空格留白。
   /// 必须用 TextSpan：WidgetSpan 占位盒的基线对齐会让第n集与简介错位。
   TextSpan _separatorSpan() => TextSpan(
-        text: '  |  ',
-        style: _lineStyle.copyWith(
-          color: AppColors.onPrimary.withValues(alpha: 0.45),
-          fontWeight: FontWeight.w400,
-        ),
-      );
+    text: '  |  ',
+    style: _lineStyle.copyWith(
+      color: AppColors.onPrimary.withValues(alpha: 0.45),
+      fontWeight: FontWeight.w400,
+    ),
+  );
 
   Widget _toggle(String label, {required EdgeInsets padding}) {
     return GestureDetector(

lib/pages/player/widgets/seek_progress_bar.dart

@@ -321,10 +321,8 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
                         trackHeight: trackHeight,
                         activeTrackColor: AppColors.blue,
                         inactiveTrackColor: widget.inactiveTrackColor,
-                        thumbColor: AppColors.onPrimary,
-                        thumbShape: RoundSliderThumbShape(
-                          enabledThumbRadius: scrubbing ? 8 : 6,
-                        ),
+                        // 播放页进度条不画滑块圆点：进度只靠蓝色已播段表达。
+                        thumbShape: SliderComponentShape.noThumb,
                         overlayShape: RoundSliderOverlayShape(
                           overlayRadius: widget.compact ? 12 : 18,
                         ),

lib/pages/ranking/ranking_page.dart

@@ -464,7 +464,7 @@ class _RankingRow extends StatelessWidget {
                     children: [
                       Text(
                         drama.title,
-                        maxLines: 1,
+                        maxLines: 2,
                         overflow: TextOverflow.ellipsis,
                         style: const TextStyle(
                           color: AppColors.textPrimary,

lib/pages/recommend/recommend_discover_page.dart

@@ -138,8 +138,7 @@ class _RecommendDiscoverPageState extends State<RecommendDiscoverPage>
     }
   }
 
-  Future<void> _openDrama(Drama drama) =>
-      playDramaFromCatalog(context, drama);
+  Future<void> _openDrama(Drama drama) => playDramaFromCatalog(context, drama);
 
   @override
   Widget build(BuildContext context) {
@@ -163,9 +162,7 @@ class _RecommendDiscoverPageState extends State<RecommendDiscoverPage>
           Positioned.fill(
             child: categoryList.isEmpty
                 ? const Center(
-                    child: CircularProgressIndicator(
-                      color: AppColors.brandRed,
-                    ),
+                    child: CircularProgressIndicator(color: AppColors.brandRed),
                   )
                 : PageView.builder(
                     key: const Key('recommend-channel-pager'),
@@ -184,7 +181,8 @@ class _RecommendDiscoverPageState extends State<RecommendDiscoverPage>
                         carouselActive: widget.active && index == selectedIndex,
                         mediaTop: mediaTop,
                         onRequest: _ensureCategory,
-                        onRefresh: () => _refreshCategory(category.id, index == 0),
+                        onRefresh: () =>
+                            _refreshCategory(category.id, index == 0),
                         onOpenDrama: _openDrama,
                       );
                     },
@@ -294,11 +292,7 @@ class _ChannelFeedState extends State<_ChannelFeed>
     List<Drama> newArrivals = const [];
     List<Drama> rest = dramas;
     if (widget.isFeatured && dramas.isNotEmpty) {
-      final lang = Localizations.localeOf(context).languageCode;
-      final badge = AppLocalizations.of(context)!.newArrivalBadge;
-      newArrivals = dramas
-          .where((drama) => _isNewArrivalTag(drama, lang, badge))
-          .toList(growable: false);
+      newArrivals = dramas.where(isNewArrivalTag).toList(growable: false);
       if (newArrivals.isNotEmpty) {
         final newIds = newArrivals.map((drama) => drama.id).toSet();
         rest = dramas
@@ -326,7 +320,9 @@ class _ChannelFeedState extends State<_ChannelFeed>
           hasScrollBody: false,
           child: Padding(
             padding: EdgeInsets.only(
-              top: showCarousel ? 0 : widget.mediaTop + RecommendChannelNav.height,
+              top: showCarousel
+                  ? 0
+                  : widget.mediaTop + RecommendChannelNav.height,
             ),
             child: Center(child: _placeholder(slot.loading)),
           ),
@@ -334,12 +330,11 @@ class _ChannelFeedState extends State<_ChannelFeed>
       );
     } else if (widget.isFeatured) {
       // 无轮播图时内容需避开顶部悬浮导航。
-      final contentTop =
-          showCarousel ? 24.0 : widget.mediaTop + RecommendChannelNav.height + 16;
+      final contentTop = showCarousel
+          ? 24.0
+          : widget.mediaTop + RecommendChannelNav.height + 16;
       if (newArrivals.isNotEmpty) {
-        sliverList.add(
-          SliverToBoxAdapter(child: SizedBox(height: contentTop)),
-        );
+        sliverList.add(SliverToBoxAdapter(child: SizedBox(height: contentTop)));
         sliverList.add(
           SliverToBoxAdapter(
             child: HomeNewArrivalRow(
@@ -348,9 +343,7 @@ class _ChannelFeedState extends State<_ChannelFeed>
             ),
           ),
         );
-        sliverList.add(
-          const SliverToBoxAdapter(child: SizedBox(height: 28)),
-        );
+        sliverList.add(const SliverToBoxAdapter(child: SizedBox(height: 28)));
       }
       sliverList.add(
         _gridSliver(
@@ -363,7 +356,9 @@ class _ChannelFeedState extends State<_ChannelFeed>
       sliverList.add(
         _gridSliver(
           dramas,
-          topPadding: showCarousel ? 20 : widget.mediaTop + RecommendChannelNav.height + 16,
+          topPadding: showCarousel
+              ? 20
+              : widget.mediaTop + RecommendChannelNav.height + 16,
           crossAxisCount: 3,
         ),
       );
@@ -427,7 +422,6 @@ class _ChannelFeedState extends State<_ChannelFeed>
     const pageSide = 14.0;
     const cardGap = 9.0;
     const rowGap = 16.0;
-    const cardBodyExtent = 44.0; // 封面下间距 + 剧名行 + 集数行
     // 两列时卡更大，卡间距略放宽。
     final spacing = crossAxisCount == 2 ? 12.0 : cardGap;
     return SliverPadding(
@@ -437,7 +431,7 @@ class _ChannelFeedState extends State<_ChannelFeed>
           final itemWidth =
               (constraints.crossAxisExtent - spacing * (crossAxisCount - 1)) /
               crossAxisCount;
-          final itemExtent = itemWidth * 157 / 110 + cardBodyExtent;
+          final itemExtent = itemWidth * 157 / 110 + homePosterCardBodyExtent;
           return SliverGrid(
             key: Key('recommend-category-grid-${widget.categoryId}'),
             gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
@@ -446,17 +440,14 @@ class _ChannelFeedState extends State<_ChannelFeed>
               mainAxisSpacing: rowGap,
               mainAxisExtent: itemExtent,
             ),
-            delegate: SliverChildBuilderDelegate(
-              (context, index) {
-                final drama = dramas[index];
-                return HomePosterCard(
-                  key: Key('recommend-category-card-${drama.id}'),
-                  drama: drama,
-                  onTap: () => widget.onOpenDrama(drama),
-                );
-              },
-              childCount: dramas.length,
-            ),
+            delegate: SliverChildBuilderDelegate((context, index) {
+              final drama = dramas[index];
+              return HomePosterCard(
+                key: Key('recommend-category-card-${drama.id}'),
+                drama: drama,
+                onTap: () => widget.onOpenDrama(drama),
+              );
+            }, childCount: dramas.length),
           );
         },
       ),
@@ -464,14 +455,11 @@ class _ChannelFeedState extends State<_ChannelFeed>
   }
 }
 
-/// 判定接口下发的短剧标签是否为「上新」。
+/// 「上新」标签语义码，对应后台 content_tag.code。
+const String newArrivalTagCode = 'NEW_ARRIVAL';
+
+/// 判定短剧是否属于「上新」板块。
 ///
-/// 完全以后端返回的 `tag` / `tagLocales`（经 [Drama.localizedTag] 本地化）
-/// 为准；兼容「上新 / NEW / BARU」三种文案，并兼容「本周上新」这类带前后缀的写法。
-bool _isNewArrivalTag(Drama drama, String lang, String localizedBadge) {
-  final tag = drama.localizedTag(lang).trim();
-  if (tag.isEmpty) return false;
-  if (tag == localizedBadge) return true;
-  final lower = tag.toLowerCase();
-  return tag.contains('上新') || lower == 'new' || lower == 'baru';
-}
+/// 只看语义码：码由后台标签管理配置，文案怎么改、切什么语言都不影响。
+bool isNewArrivalTag(Drama drama) =>
+    drama.tagCode.trim().toUpperCase() == newArrivalTagCode;

lib/pages/recommend/widgets/home_hero_carousel.dart

@@ -46,15 +46,25 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
   static const double _dotGap = 9;
   static const double _ctaHeight = 38;
 
-  final PageController _controller = PageController();
+  /// 无限轮播：PageView 用虚拟大页码，取模映射到真实 banner，首尾天然相接。
+  static const int _basePage = 1000;
+
+  late final PageController _controller;
   Timer? _timer;
+  int _page = 0;
   int _index = 0;
   bool _pressed = false;
   bool _tickerEnabled = true;
 
+  /// 起始页码取 banner 数量的大倍数，向左右滑都不会到头。
+  static int _initialPageOf(int bannerCount) =>
+      bannerCount > 1 ? bannerCount * _basePage : 0;
+
   @override
   void initState() {
     super.initState();
+    _page = _initialPageOf(widget.banners.length);
+    _controller = PageController(initialPage: _page);
     WidgetsBinding.instance.addPostFrameCallback((_) => _syncTimer());
   }
 
@@ -72,8 +82,11 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
   void didUpdateWidget(covariant HomeHeroCarousel oldWidget) {
     super.didUpdateWidget(oldWidget);
     if (oldWidget.banners.length != widget.banners.length) {
-      if (_index >= widget.banners.length) _index = 0;
-      _syncTimer();
+      // 首屏 banner 是异步到的：列表从空变有之后要把页码挪到虚拟起点，
+      // 否则左滑第一下就到头了。
+      _page = _initialPageOf(widget.banners.length);
+      _index = 0;
+      _jumpToBasePage();
     }
     if (oldWidget.banners.length != widget.banners.length ||
         oldWidget.active != widget.active) {
@@ -91,7 +104,8 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
   void _syncTimer() {
     _timer?.cancel();
     _timer = null;
-    final canAdvance = mounted &&
+    final canAdvance =
+        mounted &&
         widget.active &&
         _tickerEnabled &&
         !_pressed &&
@@ -102,12 +116,16 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
 
   void _advance() {
     if (!_controller.hasClients || widget.banners.length < 2) return;
-    final next = (_index + 1) % widget.banners.length;
-    _controller.animateToPage(
-      next,
-      duration: _pageDuration,
-      curve: Curves.easeOutCubic,
-    );
+    // 虚拟页码无限，直接翻下一页即可，不用在末尾跳回第 0 页。
+    _controller.nextPage(duration: _pageDuration, curve: Curves.easeOutCubic);
+  }
+
+  /// 把 PageView 静默挪到虚拟起点：视觉上是同一张图，不会闪。
+  void _jumpToBasePage() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted || !_controller.hasClients) return;
+      if (_controller.page?.round() != _page) _controller.jumpToPage(_page);
+    });
   }
 
   @override
@@ -134,9 +152,17 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
           children: [
             PageView.builder(
               controller: _controller,
-              itemCount: widget.banners.length,
-              onPageChanged: (value) => setState(() => _index = value),
-              itemBuilder: (context, index) => _bannerPage(context, index),
+              // 数量大于 1 时用无限页码做无缝循环，取模映射到真实 banner。
+              itemCount: widget.banners.length > 1
+                  ? null
+                  : widget.banners.length,
+              onPageChanged: (value) => setState(() {
+                _page = value;
+                final count = widget.banners.length;
+                _index = count == 0 ? 0 : value % count;
+              }),
+              itemBuilder: (context, page) =>
+                  _bannerPage(context, page % widget.banners.length),
             ),
             Positioned(left: 0, right: 0, bottom: 14, child: _dots(context)),
           ],
@@ -288,16 +314,18 @@ class _HeroCopy extends StatelessWidget {
             color: AppColors.textPrimary.withValues(alpha: 0.95),
             fontSize: 15,
             fontWeight: FontWeight.w400,
-            shadows: const [
-              Shadow(color: Color(0x80000000), blurRadius: 8),
-            ],
+            shadows: const [Shadow(color: Color(0x80000000), blurRadius: 8)],
           ),
         ),
         const SizedBox(height: 20),
         Row(
           mainAxisSize: MainAxisSize.min,
           children: [
-            _WatchButton(height: ctaHeight, label: l10n.watchNowAction, onTap: onWatch),
+            _WatchButton(
+              height: ctaHeight,
+              label: l10n.watchNowAction,
+              onTap: onWatch,
+            ),
             const SizedBox(width: 12),
             _FavoriteCircle(size: ctaHeight, drama: drama),
           ],

lib/pages/recommend/widgets/home_recommend_content.dart

@@ -15,6 +15,12 @@ const double _cardCoverHeight = 157;
 const double _cardGap = 9;
 const double _cardRadius = 12;
 
+/// 海报卡封面以下的高度：上间距 8 + 两行剧名 + 2 + 集数行 + 余量。
+///
+/// 横向列表和网格都要给一个有限的卡片高度，这里是唯一来源，
+/// 两行剧名撑高时只改这一处，不会出现某个入口高度不够而溢出。
+const double homePosterCardBodyExtent = 62;
+
 /// 上新横滑卡板块。无板块标题，卡片左上角带「上新」角标。
 /// 内层横向 ListView 会自行识别横向手势，不与外层纵向滚动冲突。
 class HomeNewArrivalRow extends StatelessWidget {
@@ -32,8 +38,7 @@ class HomeNewArrivalRow extends StatelessWidget {
     if (dramas.isEmpty) return const SizedBox.shrink();
     return SizedBox(
       key: const Key('home-new-arrival-row'),
-      height:
-          _cardCoverHeight + 8 + 20 + 2 + 16, // 封面 + 剧名行 + 集数行 + 余量
+      height: _cardCoverHeight + homePosterCardBodyExtent,
       child: ListView.separated(
         scrollDirection: Axis.horizontal,
         padding: const EdgeInsets.symmetric(horizontal: _pageSide),
@@ -130,7 +135,7 @@ class HomePosterCard extends StatelessWidget {
           const SizedBox(height: 8),
           Text(
             drama.localizedTitle(lang),
-            maxLines: 1,
+            maxLines: 2,
             overflow: TextOverflow.ellipsis,
             style: const TextStyle(
               color: AppColors.textPrimary,
@@ -192,7 +197,11 @@ class HomeEditorPickBanner extends StatelessWidget {
                   gradient: LinearGradient(
                     begin: Alignment.centerLeft,
                     end: Alignment.centerRight,
-                    colors: [Color(0xE6000000), Color(0x4D000000), Color(0x1A000000)],
+                    colors: [
+                      Color(0xE6000000),
+                      Color(0x4D000000),
+                      Color(0x1A000000),
+                    ],
                   ),
                 ),
               ),

pubspec.lock

@@ -105,14 +105,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.2"
-  cupertino_icons:
-    dependency: "direct main"
-    description:
-      name: cupertino_icons
-      sha256: "41e005c33bd814be4d3096aff55b1908d419fde52ca656c8c47719ec745873cd"
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.0.9"
   dio:
     dependency: "direct main"
     description:
@@ -253,7 +245,7 @@ packages:
     source: sdk
     version: "0.0.0"
   intl:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: intl
       sha256: "1ca20c894b1717686a2319b8548763d812bc0aabdac580420a44c5178c57a867"

pubspec.yaml

@@ -33,9 +33,6 @@ dependencies:
   flutter:
     sdk: flutter
 
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.8
   # 网络层用 dio（统一拦截器/超时/错误映射）；纯 Dart 无原生插件，仍然不引代码生成与图片缓存库
   dio: ^5.7.0
   provider: ^6.1.5+1
@@ -48,6 +45,8 @@ dependencies:
     sdk: flutter
   path_provider: 2.1.5
   html: ^0.15.6
+  # 播放量等数字的本地化格式（NumberFormat）；版本由 flutter_localizations 钉住
+  intl: any
   # 画中画：Android 原生 PiP，OnLeavePiP 支持退后台自动进小窗
   floating: ^6.0.0
   # 运行时权限：systemAlertWindow（「显示在其他应用上层」）
@@ -90,7 +89,8 @@ flutter:
     - assets/icon/splash_logo.png
     - assets/icon/splash_logo_android12.png
     - assets/icon/rail/
-    - assets/auth/
+    # 只打包代码实际引用的那张登录背景（其余 3 张留在仓库但不进包）。
+    - assets/auth/bg_3.jpg
 
   # To add assets to your application, add an assets section, like this:
   # assets:

test/catalog/drama_model_test.dart

@@ -46,6 +46,23 @@ void main() {
     expect(drama.episodeCount, 12);
   });
 
+  test('should_parse_landscape_cover_for_horizontal_slots', () {
+    final card = Drama.fromCardJson(const {
+      'id': 5,
+      'title': '闪婚后',
+      'cover': '/files/cover.jpg',
+      'coverLandscape': '/files/cover-wide.jpg',
+    });
+    final legacy = Drama.fromDetailJson(const {
+      'id': 6,
+      'title': '替嫁新娘',
+      'cover': '/files/cover-2.jpg',
+    });
+
+    expect(card.coverLandscape, '/files/cover-wide.jpg');
+    expect(legacy.coverLandscape, isEmpty);
+  });
+
   test('should_count_shipped_episodes_when_detail_response_is_parsed', () {
     final drama = Drama.fromDetailJson(const {
       'id': 5,

test/config/server_endpoint_test.dart

@@ -1,4 +1,4 @@
-import 'dart:async';
+// Author: fruit.com.cn
 
 import 'package:flutter_test/flutter_test.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -6,6 +6,8 @@ import 'package:shared_preferences_platform_interface/in_memory_shared_preferenc
 import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
 
 import 'package:fruitshorts/core/config/app_config.dart';
+import 'package:fruitshorts/core/config/dev_config.dart';
+import 'package:fruitshorts/core/config/prod_config.dart';
 import 'package:fruitshorts/core/config/server_endpoint.dart';
 
 void main() {
@@ -35,11 +37,10 @@ void main() {
     expect(ServerEndpoint.normalize('http://'), isNull);
   });
 
-  test('should_prioritize_runtime_over_dart_define_over_default', () {
+  test('should_prefer_valid_stored_url_over_build_default', () {
     expect(
       ServerEndpoint.resolve(
         stored: ' http://runtime.test:8081/ ',
-        compiled: 'http://define.test:8081',
         fallback: 'http://default.test:8081',
       ),
       'http://runtime.test:8081',
@@ -47,173 +48,57 @@ void main() {
     expect(
       ServerEndpoint.resolve(
         stored: 'ftp://invalid',
-        compiled: 'http://define.test:8081/',
-        fallback: 'http://default.test:8081',
+        fallback: 'http://default.test:8081/',
       ),
-      'http://define.test:8081',
+      'http://default.test:8081',
     );
     expect(
       ServerEndpoint.resolve(
         stored: null,
-        compiled: '',
-        fallback: 'http://default.test:8081/',
+        fallback: 'http://default.test:8081',
       ),
       'http://default.test:8081',
     );
   });
 
-  test('should_use_the_configured_local_address_for_device_default', () {
-    final uri = Uri.parse(AppConfig.devHostBaseUrl);
-    expect(uri.scheme, 'http');
-    expect(uri.host, isNotEmpty);
-    expect(uri.port, 8081);
-    expect(uri.path, isEmpty);
+  test('should_pick_address_by_environment_switch', () {
+    // 仓库里的开关默认指向开发环境。
+    expect(AppConfig.useDevConfig, isTrue);
+    expect(AppConfig.baseUrl, DevConfig.baseUrl);
+    expect(AppConfig.apiBaseUrl, DevConfig.baseUrl);
+    expect(Uri.parse(AppConfig.baseUrl).port, 8081);
   });
 
-  test('should_skip_probe_when_compiled_override_is_set', () async {
-    const compiled = 'http://compiled.test:8081';
-    var probeCalls = 0;
+  test('should_keep_dev_and_prod_addresses_in_separate_files', () {
+    final dev = Uri.parse(DevConfig.baseUrl);
+    final prod = Uri.parse(ProdConfig.baseUrl);
 
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: compiled,
-      probe: (_) async {
-        probeCalls++;
-        return true;
-      },
-    );
-
-    expect(probeCalls, 0);
-    expect(AppConfig.apiBaseUrl, compiled);
+    expect(dev.scheme, 'http');
+    expect(dev.port, 8081);
+    expect(dev.path, isEmpty);
+    expect(prod.scheme, 'http');
+    expect(prod.port, 8081);
+    expect(prod.path, isEmpty);
+    expect(DevConfig.baseUrl, isNot(ProdConfig.baseUrl));
   });
 
-  test('should_keep_runtime_endpoint_when_compiled_override_is_set', () async {
-    const runtime = 'http://runtime.test:8081';
-    const compiled = 'http://compiled.test:8081';
-    var probeCalls = 0;
-    AppConfig.applyRuntimeBaseUrl(runtime);
+  test('should_prefer_runtime_override_over_environment_switch', () {
+    AppConfig.applyRuntimeBaseUrl('http://runtime.test:8081');
 
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: compiled,
-      probe: (_) async {
-        probeCalls++;
-        return true;
-      },
-    );
-
-    expect(probeCalls, 0);
-    expect(AppConfig.apiBaseUrl, runtime);
+    expect(AppConfig.apiBaseUrl, 'http://runtime.test:8081');
+    expect(AppConfig.baseUrl, DevConfig.baseUrl);
   });
 
-  test('should_keep_probing_when_compiled_override_is_empty', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: '',
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == AppConfig.publicBaseUrl;
-      },
+  test('should_append_host_to_relative_media_paths', () {
+    expect(AppConfig.mediaUrl(''), '');
+    expect(
+      AppConfig.mediaUrl('https://cdn.test/a.mp4'),
+      'https://cdn.test/a.mp4',
     );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.publicBaseUrl);
-  });
-
-  test(
-    'should_probe_all_candidates_in_parallel_before_applying_priority',
-    () async {
-      final attempts = <String>[];
-      var active = 0;
-      var maxActive = 0;
-      final allStarted = Completer<void>();
-
-      final probing = AppConfig.probeAndApplyBaseUrl(
-        fallbackBaseUrl: AppConfig.devHostBaseUrl,
-        probe: (baseUrl) async {
-          attempts.add(baseUrl);
-          active++;
-          if (active > maxActive) maxActive = active;
-          if (active == 3) allStarted.complete();
-          await allStarted.future;
-          active--;
-          return baseUrl == AppConfig.lanBaseUrl ||
-              baseUrl == AppConfig.devHostBaseUrl;
-        },
-      );
-
-      await probing.timeout(const Duration(seconds: 1));
-
-      expect(attempts, [
-        AppConfig.lanBaseUrl,
-        AppConfig.devHostBaseUrl,
-        AppConfig.publicBaseUrl,
-      ]);
-      expect(maxActive, 3);
-      expect(AppConfig.apiBaseUrl, AppConfig.lanBaseUrl);
-    },
-  );
-
-  test('should_probe_loopback_then_public_in_order', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      fallbackBaseUrl: AppConfig.devHostBaseUrl,
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == AppConfig.publicBaseUrl;
-      },
+    expect(
+      AppConfig.mediaUrl('/files/a.mp4'),
+      '${AppConfig.apiBaseUrl}/files/a.mp4',
     );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.publicBaseUrl);
-  });
-
-  test('should_use_platform_default_when_all_probes_fail', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      fallbackBaseUrl: AppConfig.devHostBaseUrl,
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return false;
-      },
-    );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.devHostBaseUrl);
-  });
-
-  test('should_probe_explicit_runtime_endpoint_first', () async {
-    const custom = 'http://custom.test:8081';
-    final attempts = <String>[];
-    AppConfig.applyRuntimeBaseUrl(custom);
-
-    await AppConfig.probeAndApplyBaseUrl(
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == custom;
-      },
-    );
-
-    expect(attempts, [
-      custom,
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, custom);
   });
 
   test('should_apply_stored_url_only_when_debug_is_enabled', () async {

test/core/api_client_test.dart

@@ -136,19 +136,19 @@ void main() {
   });
 
   test(
-    'should_use_probed_endpoint_when_client_was_created_before_probe',
+    'should_follow_runtime_endpoint_applied_after_client_creation',
     () async {
-      const probedBaseUrl = 'http://probed.test:8081';
+      const runtimeBaseUrl = 'http://runtime.test:8081';
       final adapter = FakeHttpAdapter(
         (_) async => FakeHttpResponse(envelope(null)),
       );
       final client = ApiClient(adapter: adapter);
 
-      AppConfig.applyRuntimeBaseUrl(probedBaseUrl);
+      AppConfig.applyRuntimeBaseUrl(runtimeBaseUrl);
       addTearDown(AppConfig.clearRuntimeBaseUrl);
       await client.get('/app/home/feed');
 
-      expect(adapter.requests.single.uri.origin, probedBaseUrl);
+      expect(adapter.requests.single.uri.origin, runtimeBaseUrl);
     },
   );
 }

test/core/data/services/channel_feed_controller_test.dart

@@ -0,0 +1,50 @@
+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/drama.dart';
+import 'package:fruitshorts/core/data/models/feed_page.dart';
+import 'package:fruitshorts/core/data/services/channel_feed_controller.dart';
+
+void main() {
+  test('should_clear_loading_when_load_more_supersedes_refresh', () async {
+    final pendingRefresh = Completer<FeedPage>();
+    final controller = _ScriptedFeedController([
+      () async => FeedPage(
+        dramas: [_drama('a')],
+        nextCursor: 'cursor-1',
+        hasMore: true,
+      ),
+      () => pendingRefresh.future,
+      () async => FeedPage(dramas: [_drama('b')], hasMore: false),
+    ]);
+    await controller.refreshCurrent();
+    expect(controller.hasMore, isTrue);
+
+    final refresh = controller.refreshCurrent();
+    final more = controller.loadMore();
+    pendingRefresh.complete(FeedPage(dramas: [_drama('late')], hasMore: false));
+    await Future.wait([refresh, more]);
+
+    // 刷新被翻页抢占后，加载态必须收掉，否则该分桶永远显示加载中且无法再刷新。
+    expect(controller.isLoading, isFalse);
+    expect(controller.loadingMore, isFalse);
+    expect(controller.dramas.map((drama) => drama.id), contains('b'));
+    expect(controller.dramas.map((drama) => drama.id), isNot(contains('late')));
+    controller.dispose();
+  });
+}
+
+class _ScriptedFeedController extends ChannelFeedController<String> {
+  _ScriptedFeedController(this._pages) : super('all');
+
+  final List<Future<FeedPage> Function()> _pages;
+
+  @override
+  Future<FeedPage> fetchPage(String key, {String? cursor}) =>
+      _pages.removeAt(0)();
+}
+
+Drama _drama(String id) =>
+    Drama(id: id, title: id, synopsis: id, posterUrl: '');

test/core/paged_list_controller_test.dart

@@ -0,0 +1,129 @@
+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/page_result.dart';
+import 'package:fruitshorts/core/data/remote/api_client.dart';
+import 'package:fruitshorts/core/data/services/paged_list_controller.dart';
+
+/// 用最薄的子类验证基类契约：分页、去重、空页收口与错误映射。
+class _NumberController extends PagedListController<int> {
+  _NumberController(this.pages, {super.fallbackErrorKey});
+
+  final List<PageResult<int>> pages;
+  final List<int> requested = [];
+  Object? failure;
+
+  @override
+  Future<PageResult<int>> fetchPage(int pageIndex) async {
+    requested.add(pageIndex);
+    if (failure != null) throw failure!;
+    if (pages.isEmpty) return const PageResult();
+    return pages.removeAt(0);
+  }
+
+  @override
+  String itemKey(int item) => '$item';
+
+  /// 基类的失效入口是 protected，测试里包一层。
+  void invalidate() => invalidateRequests();
+}
+
+void main() {
+  test('should_append_only_new_items_when_next_page_overlaps', () async {
+    final controller = _NumberController([
+      const PageResult(total: 4, list: [1, 2]),
+      const PageResult(total: 4, list: [2, 3]),
+    ]);
+
+    await controller.load();
+    await controller.loadMore();
+
+    expect(controller.items, [1, 2, 3]);
+    expect(controller.requested, [1, 2]);
+    controller.dispose();
+  });
+
+  test('should_stop_paging_when_empty_page_arrives', () async {
+    final controller = _NumberController([
+      const PageResult(total: 99, list: [1]),
+      const PageResult(total: 99, list: []),
+    ]);
+
+    await controller.load();
+    expect(controller.hasMore, isTrue);
+
+    await controller.loadMore();
+    expect(controller.hasMore, isFalse);
+    await controller.loadMore();
+    expect(controller.requested, [1, 2]);
+    controller.dispose();
+  });
+
+  test('should_expose_backend_message_when_api_fails', () async {
+    final controller = _NumberController([])
+      ..failure = const ApiException(500, '服务暂不可用');
+
+    await controller.load();
+
+    expect(controller.error, '服务暂不可用');
+    expect(controller.lastErrorCode, 500);
+    controller.dispose();
+  });
+
+  test('should_fall_back_to_key_when_failure_is_not_api_error', () async {
+    final controller = _NumberController([], fallbackErrorKey: 'loadFailed')
+      ..failure = StateError('boom');
+
+    await controller.load();
+
+    expect(controller.error, 'loadFailed');
+    controller.dispose();
+  });
+
+  test('should_ignore_stale_response_when_invalidated', () async {
+    final controller = _NumberController([
+      const PageResult(total: 1, list: [1]),
+    ]);
+
+    final pending = controller.load();
+    controller.invalidate();
+    await pending;
+
+    expect(controller.items, isEmpty);
+    expect(controller.loaded, isFalse);
+    controller.dispose();
+  });
+
+  test('should_not_stick_loading_when_refresh_supersedes_load', () async {
+    final first = Completer<PageResult<int>>();
+    final controller = _DeferredController([
+      () => first.future,
+      () async => const PageResult(total: 1, list: [2]),
+    ]);
+
+    final loading = controller.load();
+    final refreshing = controller.refresh();
+    first.complete(const PageResult(total: 1, list: [1]));
+    await Future.wait([loading, refreshing]);
+
+    expect(controller.loading, isFalse);
+    expect(controller.refreshing, isFalse);
+    expect(controller.items, [2]);
+    controller.dispose();
+  });
+}
+
+/// 让每个请求各自挂起，用来构造「后发请求抢占先发请求」的时序。
+class _DeferredController extends PagedListController<int> {
+  _DeferredController(this._pages);
+
+  final List<Future<PageResult<int>> Function()> _pages;
+
+  @override
+  Future<PageResult<int>> fetchPage(int pageIndex) => _pages.removeAt(0)();
+
+  @override
+  String itemKey(int item) => '$item';
+}

test/core/playlist_controller_test.dart

@@ -22,12 +22,25 @@ void main() {
 
     controller.dispose();
   });
+
+  test('should_keep_duplicate_ids_when_repository_repeats_items', () async {
+    // 剧单不去重：服务端分页错位时按原样展示，不能悄悄吞掉条目。
+    final repository = _PagedPlaylists(total: 12, repeatLastOfFirstPage: true);
+    final controller = PlaylistController(repository);
+
+    await controller.load();
+    await controller.loadMore();
+
+    expect(controller.items, hasLength(12));
+    controller.dispose();
+  });
 }
 
 class _PagedPlaylists implements PlaylistRepository {
-  _PagedPlaylists({required this.total});
+  _PagedPlaylists({required this.total, this.repeatLastOfFirstPage = false});
 
   final int total;
+  final bool repeatLastOfFirstPage;
 
   @override
   Future<PageResult<PlaylistDetail>> fetchPlaylists({
@@ -44,7 +57,7 @@ class _PagedPlaylists implements PlaylistRepository {
       list: [
         for (var index = start; index < end; index++)
           PlaylistDetail(
-            id: '$index',
+            id: '${repeatLastOfFirstPage && index == pageSize ? start - 1 : index}',
             name: '剧单$index',
             description: '',
             dramaCount: 0,

test/core/response_decoders_test.dart

@@ -0,0 +1,87 @@
+// Author: fruit.com.cn
+
+import 'dart:convert';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/remote/api_client.dart';
+import 'package:fruitshorts/core/data/remote/download_api.dart';
+import 'package:fruitshorts/core/data/remote/response_decoders.dart';
+
+import '../support/fake_http_adapter.dart';
+
+void main() {
+  group('ResponseDecoders', () {
+    test('should_return_same_map_when_data_is_object', () {
+      const source = {'id': '1'};
+      expect(ResponseDecoders.asMap(source), same(source));
+    });
+
+    test('should_throw_with_readable_message_when_data_is_not_object', () {
+      expect(
+        () => ResponseDecoders.asMap(const []),
+        throwsA(
+          isA<ApiException>()
+              .having((e) => e.code, 'code', ResponseDecoders.malformedCode)
+              .having(
+                (e) => e.message,
+                'message',
+                ResponseDecoders.malformedMessage,
+              ),
+        ),
+      );
+      expect(ResponseDecoders.malformedMessage, isNotEmpty);
+    });
+
+    test('should_return_null_when_try_map_receives_non_object', () {
+      expect(ResponseDecoders.tryMap(null), isNull);
+      expect(ResponseDecoders.tryMap('text'), isNull);
+      expect(ResponseDecoders.tryMap({'a': 1})?['a'], 1);
+    });
+
+    test('should_skip_non_object_items_when_decoding_object_list', () {
+      final decoded = ResponseDecoders.asMapList([
+        {'id': '1'},
+        'bad',
+        {'id': '2'},
+      ]);
+      expect(decoded.map((item) => item['id']), ['1', '2']);
+    });
+
+    test('should_return_empty_list_when_data_is_not_list', () {
+      expect(ResponseDecoders.asMapList(const {}), isEmpty);
+      expect(ResponseDecoders.asMapList(null), isEmpty);
+    });
+
+    test('should_throw_when_required_list_receives_non_list', () {
+      expect(
+        () => ResponseDecoders.requiredMapList(const {}),
+        throwsA(isA<ApiException>()),
+      );
+    });
+  });
+
+  test(
+    'should_raise_readable_error_when_download_policy_data_is_malformed',
+    () async {
+      final adapter = FakeHttpAdapter(
+        (options) async => FakeHttpResponse(
+          jsonEncode({'code': 0, 'message': 'ok', 'data': null}),
+        ),
+      );
+      final client = ApiClient(adapter: adapter);
+      final api = DownloadApi(client);
+
+      await expectLater(
+        api.policy(),
+        throwsA(
+          isA<ApiException>().having(
+            (error) => error.message,
+            'message',
+            ResponseDecoders.malformedMessage,
+          ),
+        ),
+      );
+      client.close();
+    },
+  );
+}

test/discover/home_all_dramas_grid_test.dart

@@ -384,7 +384,7 @@ void main() {
 
     expect(refresh.edgeOffset, 52);
     expect(
-      tester.widget<ListView>(_verticalFeed).physics,
+      tester.widget<CustomScrollView>(_verticalFeed).physics,
       AppPullToRefresh.physics,
     );
     await tester.drag(_verticalFeed, const Offset(0, 240));
@@ -396,7 +396,8 @@ void main() {
 }
 
 final Finder _verticalFeed = find.byWidgetPredicate(
-  (widget) => widget is ListView && widget.scrollDirection == Axis.vertical,
+  (widget) =>
+      widget is CustomScrollView && widget.scrollDirection == Axis.vertical,
 );
 
 Future<void> _pumpTheater(

test/discover/theater_pages_test.dart

@@ -8,6 +8,7 @@ import 'package:fruitshorts/core/data/models/home_feed.dart';
 import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/widgets/app_pull_to_refresh.dart';
 import 'package:fruitshorts/pages/discover/discover_view.dart';
+import 'package:fruitshorts/pages/discover/widgets/drama_grid.dart';
 import 'package:fruitshorts/core/data/repositories/favorite_repository.dart';
 import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
@@ -234,25 +235,26 @@ void main() {
     await tester.pumpAndSettle();
 
     final list = find.byKey(const Key('new-releases-list'));
-    expect(tester.widget<ListView>(list).physics, AppPullToRefresh.physics);
-    await tester.drag(list, const Offset(0, -400));
-    await tester.pump();
-    expect(_countKeys('home-drama-card-'), 20);
+    expect(
+      tester.widget<CustomScrollView>(list).physics,
+      AppPullToRefresh.physics,
+    );
 
+    // 网格懒加载后只保留可见行，页数直接看传给网格的剧目数。
+    List<Drama> gridDramas() => tester
+        .widget<SliverDramaGrid>(find.byKey(const Key('new-releases-all-grid')))
+        .dramas;
+    expect(gridDramas(), hasLength(20));
+
+    // jumpTo 不发滚动通知，滑到底后再拖一下才会触发加载。
     final position = _scrollPosition(tester, const Key('new-releases-list'));
     position.jumpTo(position.maxScrollExtent);
     await tester.pump();
-    expect(find.byKey(const Key('new-releases-load-more')), findsOneWidget);
-    await tester.pump(const Duration(milliseconds: 299));
-    expect(_countKeys('home-drama-card-'), 20);
-    await tester.pump(const Duration(milliseconds: 1));
+    await tester.drag(list, const Offset(0, -60));
     await tester.pump();
-    expect(_countKeys('home-drama-card-'), 40);
-
+    expect(find.byKey(const Key('new-releases-load-more')), findsOneWidget);
     await tester.pumpAndSettle();
-    position.jumpTo(position.maxScrollExtent);
-    await tester.pumpAndSettle();
-    expect(find.byKey(const Key('new-releases-no-more')), findsNothing);
+    expect(gridDramas(), hasLength(40));
 
     position.jumpTo(0);
     await tester.pump();
@@ -262,10 +264,7 @@ void main() {
     await tester.pumpAndSettle();
     expect(repository.fetchCalls, beforeRefresh + 1);
     expect(position.pixels, 0);
-
-    await tester.drag(list, const Offset(0, -400));
-    await tester.pump();
-    expect(_countKeys('home-drama-card-'), 20);
+    expect(gridDramas(), hasLength(20));
   });
 
   testWidgets('should_refresh_reserve_without_load_more', (tester) async {
@@ -327,14 +326,6 @@ ScrollPosition _scrollPosition(WidgetTester tester, Key listKey) {
   return tester.state<ScrollableState>(scrollable.first).position;
 }
 
-int _countKeys(String prefix) => find
-    .byWidgetPredicate((widget) {
-      final key = widget.key;
-      return key is ValueKey<String> && key.value.startsWith(prefix);
-    })
-    .evaluate()
-    .length;
-
 class _CountingCatalogRepository extends FakeCatalogRepository {
   _CountingCatalogRepository({super.dramas});
 

test/following/following_page_test.dart

@@ -23,6 +23,28 @@ import '../support/fake_interaction_repositories.dart';
 import '../support/widget_player.dart';
 
 void main() {
+  testWidgets('should_defer_watch_history_until_following_tab_is_opened', (
+    tester,
+  ) async {
+    SharedPreferencesAsyncPlatform.instance =
+        InMemorySharedPreferencesAsync.empty();
+    final catalog = FakeCatalogRepository();
+    final history = _IdentityWatchHistoryRepository(
+      device: [_historyProgress('the-signal-demo', 'Device history')],
+      account: const [],
+    );
+    await tester.pumpWidget(_app(catalog: catalog, history: history));
+    await tester.pumpAndSettle();
+
+    // 首页默认停在推荐 tab：追剧页在启动时还没被构建，不该提前拉观看历史。
+    expect(history.recentCalls, 0);
+
+    await tester.tap(find.byKey(const Key('tab-follow')));
+    await tester.pumpAndSettle();
+
+    expect(history.recentCalls, greaterThan(0));
+  });
+
   testWidgets('should_render_following_tabs_grid_and_edit_actions', (
     tester,
   ) async {

test/home/catalog_diagnostics_test.dart

@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 import 'package:fruitshorts/core/config/app_config.dart';
-import 'package:fruitshorts/core/data/services/catalog_retry.dart';
 import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/widgets/catalog_endpoint_editor.dart';
 import 'package:fruitshorts/l10n/app_localizations.dart';
@@ -55,20 +54,7 @@ void main() {
     );
   });
 
-  test('should_probe_before_reloading_catalog', () async {
-    final steps = <String>[];
-
-    await retryCatalogLoad(
-      probe: () async => steps.add('probe'),
-      reload: () async => steps.add('load'),
-    );
-
-    expect(steps, ['probe', 'load']);
-  });
-
-  testWidgets('should_save_probe_and_reload_after_valid_endpoint', (
-    tester,
-  ) async {
+  testWidgets('should_save_and_reload_after_valid_endpoint', (tester) async {
     AppConfig.applyRuntimeBaseUrl('http://127.0.0.1:8081');
     final steps = <String>[];
     await _pumpEndpointEditor(
@@ -77,7 +63,6 @@ void main() {
         steps.add('save:$value');
         return true;
       },
-      probe: () async => steps.add('probe'),
       reload: () async => steps.add('load'),
     );
 
@@ -101,12 +86,11 @@ void main() {
     await tester.tap(find.byKey(const Key('catalog-debug-endpoint-save')));
     await tester.pumpAndSettle();
 
-    expect(steps, ['save:http://10.0.0.8:8081', 'probe', 'load']);
+    expect(steps, ['save:http://10.0.0.8:8081', 'load']);
   });
 
   testWidgets('should_reject_invalid_endpoint_without_saving', (tester) async {
     var saves = 0;
-    var probes = 0;
     var loads = 0;
     await _pumpEndpointEditor(
       tester,
@@ -114,7 +98,6 @@ void main() {
         saves++;
         return true;
       },
-      probe: () async => probes++,
       reload: () async => loads++,
     );
 
@@ -134,7 +117,6 @@ void main() {
       findsOneWidget,
     );
     expect(saves, 0);
-    expect(probes, 0);
     expect(loads, 0);
   });
 }
@@ -142,7 +124,6 @@ void main() {
 Future<void> _pumpEndpointEditor(
   WidgetTester tester, {
   required Future<bool> Function(String value) save,
-  required Future<void> Function() probe,
   required Future<void> Function() reload,
 }) async {
   await tester.pumpWidget(
@@ -152,12 +133,7 @@ Future<void> _pumpEndpointEditor(
           body: TextButton(
             key: const Key('open-endpoint-editor'),
             onPressed: () => unawaited(
-              showCatalogEndpointEditor(
-                context,
-                save: save,
-                probe: probe,
-                reload: reload,
-              ),
+              showCatalogEndpointEditor(context, save: save, reload: reload),
             ),
             child: const Text('open'),
           ),

test/home/home_preview_layout_test.dart

@@ -293,7 +293,10 @@ void main() {
     expect(find.byKey(const Key('home-feed-synopsis-more')), findsOneWidget);
     await tester.tap(find.byKey(const Key('home-feed-synopsis-more')));
     await tester.pump();
-    expect(find.byKey(const Key('home-feed-synopsis-expanded')), findsOneWidget);
+    expect(
+      find.byKey(const Key('home-feed-synopsis-expanded')),
+      findsOneWidget,
+    );
     expect(
       tester
           .widget<Text>(find.byKey(const Key('home-feed-synopsis-expanded')))
@@ -371,7 +374,7 @@ void main() {
       find.byKey(const Key('home-feed-progress-inactive')),
       findsOneWidget,
     );
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsNothing);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsNothing);
     await tester.tap(find.byKey(const Key('rail-share')));
     expect(shares, 1);
   });
@@ -575,26 +578,36 @@ void main() {
     await tester.pumpAndSettle();
 
     final bar = tester.getRect(find.byKey(const Key('home-feed-full-series')));
-    expect(bar.height, 44);
+    expect(bar.height, 38);
     final overlayRect = tester.getRect(
       find.byKey(const Key('home-feed-gesture')),
     );
-    // 通栏观看条铺满浮层宽度，不再左右内缩。
-    expect(bar.left, closeTo(overlayRect.left, 0.1));
-    expect(bar.width, closeTo(overlayRect.width, 0.1));
-    // 进度线中心比观看条顶沿高 8pt。
+    // 观看条与底部进度条共用同一组左右边距（各 20pt），宽度一致。
+    expect(bar.left, closeTo(overlayRect.left + 20, 0.1));
+    expect(bar.width, closeTo(overlayRect.width - 40, 0.1));
     expect(
-      bar.top -
-          tester
-              .getCenter(find.byKey(const Key('home-feed-progress-track')))
-              .dy,
-      closeTo(8, 0.1),
+      bar.left,
+      closeTo(
+        tester.getRect(find.byKey(const Key('home-feed-progress'))).left,
+        0.1,
+      ),
     );
+    expect(
+      bar.width,
+      closeTo(
+        tester.getRect(find.byKey(const Key('home-feed-progress'))).width,
+        0.1,
+      ),
+    );
+    // 进度线贴着浮层底部（线心距底 4pt），且位于观看条下方。
+    final trackCenter = tester.getCenter(
+      find.byKey(const Key('home-feed-progress-track')),
+    );
+    expect(overlayRect.bottom - trackCenter.dy, closeTo(4, 0.1));
+    expect(trackCenter.dy, greaterThan(bar.bottom));
     expect(
       tester
-          .widget<Material>(
-            find.byKey(const Key('home-feed-full-series-bg')),
-          )
+          .widget<Material>(find.byKey(const Key('home-feed-full-series-bg')))
           .color,
       AppColors.textPrimary.withValues(alpha: 0.15),
     );
@@ -602,13 +615,9 @@ void main() {
       tester.getRect(find.textContaining('Watch full series')).center.dy,
       closeTo(bar.center.dy, 2),
     );
-    expect(
-      tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
-      const Size(6, 6),
-    );
     expect(
       tester.getSize(find.byKey(const Key('home-feed-progress'))).height,
-      greaterThanOrEqualTo(32),
+      greaterThanOrEqualTo(16),
     );
     expect(
       tester
@@ -620,19 +629,6 @@ void main() {
         .getRect(find.byKey(const Key('home-feed-progress-track')))
         .center
         .dy;
-    expect(
-      tester
-          .getRect(find.byKey(const Key('home-feed-progress-thumb')))
-          .center
-          .dy,
-      closeTo(
-        tester
-            .getRect(find.byKey(const Key('home-feed-progress-track')))
-            .center
-            .dy,
-        0.5,
-      ),
-    );
 
     final gesture = await tester.startGesture(
       tester.getCenter(find.byKey(const Key('home-feed-progress'))),
@@ -704,10 +700,6 @@ void main() {
       closeTo(trackRect.right - 12, 0.1),
     );
     await tester.pump(const Duration(milliseconds: 130));
-    expect(
-      tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
-      const Size(14, 14),
-    );
     expect(
       tester.getSize(find.byKey(const Key('home-feed-progress-track'))).height,
       6,
@@ -719,19 +711,6 @@ void main() {
           .dy,
       closeTo(idleTrackCenter, 0.1),
     );
-    expect(
-      tester
-          .getRect(find.byKey(const Key('home-feed-progress-thumb')))
-          .center
-          .dy,
-      closeTo(
-        tester
-            .getRect(find.byKey(const Key('home-feed-progress-track')))
-            .center
-            .dy,
-        0.5,
-      ),
-    );
     await gesture.up();
     await tester.pumpAndSettle();
     expect(scrubVisibility.last, isFalse);
@@ -746,10 +725,6 @@ void main() {
     );
     expect(seeked, isNotNull);
     expect(seeked!.inSeconds, greaterThan(0));
-    expect(
-      tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
-      const Size(6, 6),
-    );
     expect(
       tester.getSize(find.byKey(const Key('home-feed-progress-track'))).height,
       2,
@@ -825,11 +800,11 @@ void main() {
       isBuffering: true,
     );
     await tester.pump(const Duration(milliseconds: 200));
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsOneWidget);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsOneWidget);
     expect(find.byKey(const Key('progress-loading')), findsNothing);
 
     await tester.pump(const Duration(milliseconds: 200));
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsNothing);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsNothing);
     expect(find.byKey(const Key('progress-loading')), findsOneWidget);
 
     controller.value = const VideoPlayerValue(
@@ -838,7 +813,7 @@ void main() {
       isInitialized: true,
     );
     await tester.pump();
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsOneWidget);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsOneWidget);
 
     final gesture = await tester.startGesture(
       tester.getCenter(find.byKey(const Key('home-feed-progress'))),
@@ -853,7 +828,7 @@ void main() {
     );
     await tester.pump(const Duration(milliseconds: 400));
 
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsOneWidget);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsOneWidget);
     expect(find.byKey(const Key('progress-loading')), findsNothing);
 
     controller.value = const VideoPlayerValue(
@@ -872,7 +847,7 @@ void main() {
       isBuffering: true,
     );
     await tester.pump(const Duration(milliseconds: 400));
-    expect(find.byKey(const Key('home-feed-progress-thumb')), findsOneWidget);
+    expect(find.byKey(const Key('home-feed-progress-played')), findsOneWidget);
     expect(find.byKey(const Key('progress-loading')), findsNothing);
   });
 

test/playback/playback_position_cache_test.dart

@@ -89,6 +89,25 @@ void main() {
     expect(cache.latestForDrama('drama-a')?.episodeId, 'episode-2');
   });
 
+  test('should_evict_oldest_entry_when_capacity_exceeded', () {
+    var now = DateTime(2026, 10, 22, 12);
+    final cache = PlaybackPositionCache(now: () => now, maxEntries: 2);
+
+    for (final episodeId in ['episode-1', 'episode-2', 'episode-3']) {
+      cache.save(
+        episodeId: episodeId,
+        dramaId: 'drama-a',
+        position: const Duration(seconds: 30),
+        duration: const Duration(minutes: 3),
+      );
+      now = now.add(const Duration(minutes: 1));
+    }
+
+    expect(cache.read('episode-1', dramaId: 'drama-a'), isNull);
+    expect(cache.read('episode-2', dramaId: 'drama-a'), isNotNull);
+    expect(cache.read('episode-3', dramaId: 'drama-a'), isNotNull);
+  });
+
   test('should_reject_expired_cached_position', () {
     var now = DateTime(2026, 10, 22, 12);
     final cache = PlaybackPositionCache(now: () => now);

test/playback/progress_throttle_test.dart

@@ -158,6 +158,18 @@ void main() {
       logic.dispose();
     });
 
+    test('should_share_one_request_when_resume_point_loads_concurrently', () async {
+      final history = FakeWatchHistory()..saved = const Duration(seconds: 20);
+      final logic = _logic(history, drama: _drama('signal'));
+
+      // 进页与首次准备播放会同时要续看点，只应发一次请求。
+      await Future.wait([logic.loadResumePoint(), logic.loadResumePoint()]);
+
+      expect(logic.resumeLoaded, isTrue);
+      expect(history.reads, ['signal']);
+      logic.dispose();
+    });
+
     test('should_not_seek_when_position_is_zero', () async {
       final history = FakeWatchHistory()
         ..records['signal'] = const WatchProgress(

test/playback/sprite_thumbnail_axis_test.dart

@@ -159,6 +159,31 @@ void main() {
     expect(loader.spriteCalls, hasLength(6));
   });
 
+  testWidgets('should_not_reload_three_slots_sprites_when_capacity_fits', (
+    tester,
+  ) async {
+    final loader = _FakeSpriteLoader(vtt: _spriteVtt);
+    // 播放页三个槽位各预取 2 张，容量必须 >= 6，否则每轮重建都会重新下载解码。
+    final service = SpriteThumbnailAxisService(
+      loader: loader,
+      spriteCacheCapacity: 8,
+    );
+    addTearDown(service.dispose);
+    const urls = [
+      'https://cdn.test/episode-0/thumbnails.vtt',
+      'https://cdn.test/episode-1/thumbnails.vtt',
+      'https://cdn.test/episode-2/thumbnails.vtt',
+    ];
+
+    for (var round = 0; round < 3; round++) {
+      for (final url in urls) {
+        await service.prepareAt(url, Duration.zero);
+      }
+    }
+
+    expect(loader.spriteCalls, hasLength(6));
+  });
+
   testWidgets('should_refresh_vtt_after_ten_minute_ttl', (tester) async {
     var now = DateTime(2026, 10, 22);
     final loader = _FakeSpriteLoader(vtt: _spriteVtt);

test/playback/video_player_port_test.dart

@@ -18,9 +18,8 @@ void main() {
     );
 
     expect(uri.isAbsolute, isTrue);
-    // Uri.parse().toString() 会把 host 规范成小写，而 devHostBaseUrl 里的
-    // Bonjour 名字带大写（jiangdeMacBook-Air.local）—— 比较时统一小写，
-    // 否则会依赖运行平台（flutter test 里 defaultTargetPlatform 默认是 android）
+    // Uri.parse().toString() 会把 host 规范成小写，而开发地址可能带大写
+    // （Bonjour 名字），比较时统一小写，否则会依赖运行平台。
     expect(
       uri.toString().toLowerCase(),
       '${AppConfig.apiBaseUrl}/files/episode/202610/clip.mp4'.toLowerCase(),

test/player/player_center_toggle_test.dart

@@ -35,12 +35,12 @@ void main() {
       Key('player-play-toggle'),
     ]) {
       expect(tester.getSize(find.byKey(key)), const Size(68, 68));
-      // 圆形底改为半透明黑色，不再是完全透明或蓝色实底。
+      // 圆形深色底：压在亮画面上也能看见播放/暂停。
       final container = tester.widget<Container>(
         find.descendant(of: find.byKey(key), matching: find.byType(Container)),
       );
       final decoration = container.decoration! as BoxDecoration;
-      expect(decoration.color, Colors.black26);
+      expect(decoration.color, const Color(0x66000000));
       expect(decoration.shape, BoxShape.circle);
       final icon = tester.widget<Icon>(
         find.descendant(of: find.byKey(key), matching: find.byType(Icon)),

test/player/player_fullscreen_test.dart

@@ -983,9 +983,11 @@ void main() {
     expect(find.byKey(const Key('player-video-tap')), findsOneWidget);
     expect(find.byKey(const Key('player-bottom-clear-screen')), findsOneWidget);
     expect(find.byTooltip('Exit clear screen'), findsOneWidget);
+    // 清屏后左侧选集条一起收起，只留右下角的退出按钮。
+    expect(find.byKey(const Key('player-episodes-pill')), findsNothing);
     expect(
       tester.getSize(find.byKey(const Key('player-bottom-clear-screen'))),
-      const Size(40, 40),
+      const Size(40, 34),
     );
 
     await tester.tapAt(const Offset(80, 300));
@@ -1100,8 +1102,8 @@ void main() {
     expect(find.byKey(const Key('player-speed-boost-hint')), findsNothing);
     expect(find.byKey(const Key('player-interaction-rail')), findsNothing);
     expect(find.byTooltip('Exit clear screen'), findsOneWidget);
-    // 清屏态本来显示的选集胶囊与右下按钮，在加速结束后恢复。
-    expect(find.byKey(const Key('player-episodes-pill')), findsOneWidget);
+    // 清屏态只恢复右下退出按钮；左侧选集条在清屏下一直不显示。
+    expect(find.byKey(const Key('player-episodes-pill')), findsNothing);
     expect(find.byKey(const Key('player-bottom-clear-screen')), findsOneWidget);
     expect(
       find.descendant(
@@ -1118,7 +1120,7 @@ void main() {
 
     expect(
       tester.getSize(find.byKey(const Key('player-back'))),
-      const Size(36, 36),
+      const Size(40, 40),
     );
     expect(tester.takeException(), isNull);
   });
@@ -1160,17 +1162,12 @@ void main() {
           .child,
       isNotNull,
     );
+    // 选集条给一层浅底色，标出可点区域。
     expect(
       tester
           .widget<Material>(find.byKey(const Key('player-episodes-pill')))
           .color,
-      AppColors.playerOverlayPill,
-    );
-    expect(
-      tester
-          .widget<Material>(find.byKey(const Key('player-episodes-pill')))
-          .borderRadius,
-      BorderRadius.circular(7),
+      AppColors.textPrimary.withValues(alpha: 0.14),
     );
     expect(
       tester
@@ -1186,9 +1183,14 @@ void main() {
           ?.fontSize,
       13.5,
     );
+    // 清屏按钮与左侧选集条等高。
     expect(
       tester.getSize(find.byKey(const Key('player-bottom-clear-screen'))),
-      const Size(40, 40),
+      const Size(40, 34),
+    );
+    expect(
+      tester.getSize(find.byKey(const Key('player-episodes-pill'))).height,
+      34,
     );
     expect(find.byKey(const Key('progress-loading')), findsNothing);
     expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
@@ -1289,7 +1291,8 @@ void main() {
         matching: find.byIcon(Icons.keyboard_arrow_up_rounded),
       ),
     );
-    expect(pill.right - arrow.right, closeTo(14, 0.5));
+    // 选集条左右各留 10pt 内边距，箭头不再贴边。
+    expect(pill.right - arrow.right, closeTo(10, 0.5));
     expect(arrow.left - label.right, closeTo(8, 0.5));
   });
 
@@ -1551,7 +1554,8 @@ void main() {
       ),
     );
     expect(chevron.left - title.right, lessThanOrEqualTo(6));
-    expect(chevron.right, lessThanOrEqualTo(320 - 14));
+    // 剧名和简介一样收在互动栏左侧，不再铺到屏幕最右边。
+    expect(chevron.right, lessThanOrEqualTo(320 - 14 - 54));
     final synopsis = tester.widget<Text>(
       find.byKey(const Key('player-synopsis')),
     );
@@ -1647,11 +1651,11 @@ void main() {
     await tester.tap(find.byKey(const Key('player-episodes')));
     await tester.pumpAndSettle();
 
-    expect(find.byKey(const Key('player-episodes-sheet')), findsOneWidget);
-    expect(find.byKey(const Key('player-episodes-close')), findsOneWidget);
+    expect(find.byKey(const Key('drama-info-sheet')), findsOneWidget);
+    expect(find.byKey(const Key('drama-info-close')), findsOneWidget);
     final grid = tester.widget<GridView>(
       find.descendant(
-        of: find.byKey(const Key('player-episodes-sheet')),
+        of: find.byKey(const Key('drama-info-sheet')),
         matching: find.byType(GridView),
       ),
     );
@@ -1659,14 +1663,14 @@ void main() {
         grid.gridDelegate as SliverGridDelegateWithFixedCrossAxisCount;
     expect(delegate.crossAxisCount, 6);
     final overlay = tester.widget<AnnotatedRegion<SystemUiOverlayStyle>>(
-      find.byKey(const Key('player-episodes-system-overlay')),
+      find.byKey(const Key('drama-info-system-overlay')),
     );
     expect(overlay.value.systemNavigationBarColor, AppColors.card);
     expect(overlay.value.systemNavigationBarContrastEnforced, isFalse);
     final safeArea = tester.widget<SafeArea>(
       find
           .descendant(
-            of: find.byKey(const Key('player-episodes-sheet')),
+            of: find.byKey(const Key('drama-info-sheet')),
             matching: find.byType(SafeArea),
           )
           .first,
@@ -2030,7 +2034,7 @@ void _expectFullscreenOverlay(WidgetTester tester) {
   expect(find.byKey(const Key('player-synopsis')), findsOneWidget);
   expect(find.byKey(const Key('player-more')), findsOneWidget);
   for (final key in const [Key('player-back'), Key('player-more')]) {
-    expect(tester.getSize(find.byKey(key)), const Size(36, 36));
+    expect(tester.getSize(find.byKey(key)), const Size(40, 40));
   }
   expect(find.byKey(const Key('player-play-toggle')), findsNothing);
   expect(find.byKey(const Key('player-episodes')), findsOneWidget);

test/player/player_locked_auth_flow_test.dart

@@ -8,6 +8,7 @@ import 'package:fruitshorts/core/data/repositories/commerce_repository.dart';
 import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
 import 'package:fruitshorts/core/data/services/android_picture_in_picture.dart';
 import 'package:fruitshorts/core/data/services/playback_session.dart';
+import 'package:fruitshorts/core/data/services/unlocked_episode_registry.dart';
 import 'package:fruitshorts/core/data/services/wallet_controller.dart';
 import 'package:fruitshorts/pages/player/player_logic.dart';
 import 'package:fruitshorts/pages/player/player_view.dart';
@@ -120,6 +121,36 @@ void main() {
     logic.dispose();
     await _drain(logic);
   });
+
+  test('should_keep_episode_unlocked_when_reentering_player_page', () async {
+    final registry = UnlockedEpisodeRegistry();
+    registry.markUnlocked('locked-1');
+    final playback = FakePlaybackRepository(
+      ticket: const PlayTicket(
+        episodeId: 'locked-1',
+        accessible: true,
+        accessType: 'ENTITLED',
+        playUrl: '/files/locked-1.mp4',
+      ),
+    );
+    // 重进播放页 = 新建 PlayerLogic，但沿用同一张解锁登记表。
+    final logic = _logic(playback, unlockedEpisodes: registry);
+    logic.attach(
+      const PlayerPage(drama: _lockedDrama, initialIndex: 0),
+      isMounted: () => true,
+    );
+    logic.start(
+      factory: (_) => _NoopPlayer(),
+      coordinator: PlaybackCoordinator(),
+    );
+    await _drain(logic);
+
+    expect(logic.isEpisodeLocked(logic.sessionEpisodes.single), isFalse);
+    expect(logic.session.active, isNotNull);
+
+    logic.dispose();
+    await _drain(logic);
+  });
 }
 
 PlayerLogic _logic(
@@ -127,11 +158,13 @@ PlayerLogic _logic(
   bool signedIn = true,
   bool Function()? isSignedIn,
   WalletController? wallet,
+  UnlockedEpisodeRegistry? unlockedEpisodes,
 }) {
   return PlayerLogic(
     history: FakeWatchHistory(),
     playback: playback,
     wallet: wallet,
+    unlockedEpisodes: unlockedEpisodes,
     pictureInPicture: AndroidPictureInPicture(
       channel: const MethodChannel('test/player_locked_auth_flow/pip'),
     ),

test/player/player_open_detail_test.dart

@@ -103,7 +103,10 @@ void main() {
       await _pumpSession(tester);
       await tester.runAsync(() => logic.session.playbackSettled);
 
-      expect(find.byType(DramaDetailPage), findsOneWidget);
+      expect(find.byType(DramaDetailPage), findsNothing);
+      expect(find.byKey(const Key('drama-info-sheet')), findsOneWidget);
+      expect(find.byKey(const Key('drama-info-tab-detail')), findsOneWidget);
+      expect(find.byKey(const Key('drama-info-detail')), findsOneWidget);
       expect(logic.session.active, same(active));
       expect(logic.session.currentIndex, index);
       expect(logic.session.userWantsPlay, isTrue);
@@ -118,7 +121,7 @@ void main() {
         const Duration(minutes: 1, seconds: 22),
       );
 
-      await tester.pageBack();
+      await tester.tap(find.byKey(const Key('drama-info-close')));
       await tester.pump();
       await tester.pump(const Duration(milliseconds: 400));
       await _pumpSession(tester);

test/player/seek_scrub_visibility_test.dart

@@ -37,11 +37,8 @@ void main() {
     expect(find.byKey(const Key('scrub-overlay')), findsNothing);
     expect(harness.scrubStarts, 1);
     expect(_sliderTheme(tester).trackHeight, 6);
-    expect(
-      (_sliderTheme(tester).thumbShape! as RoundSliderThumbShape)
-          .enabledThumbRadius,
-      8,
-    );
+    // 不画滑块圆点，进度只靠已播段表达。
+    expect(_sliderTheme(tester).thumbShape, SliderComponentShape.noThumb);
 
     await gesture.moveBy(const Offset(72, 0));
     await tester.pump();
@@ -67,11 +64,7 @@ void main() {
     expect(harness.scrubEnds, 1);
     expect(harness.seeks, 1);
     expect(_sliderTheme(tester).trackHeight, 2);
-    expect(
-      (_sliderTheme(tester).thumbShape! as RoundSliderThumbShape)
-          .enabledThumbRadius,
-      6,
-    );
+    expect(_sliderTheme(tester).thumbShape, SliderComponentShape.noThumb);
   });
 
   testWidgets('feed progress tap does not clear overlay content', (
@@ -154,29 +147,27 @@ void main() {
     await tester.pumpAndSettle();
   });
 
-  testWidgets('feed progress thumb stays on the finger when dragged right', (
-    tester,
-  ) async {
-    await _pumpFeedOverlay(tester);
-    final bar = find.byKey(const Key('home-feed-progress'));
-    final gesture = await tester.startGesture(tester.getCenter(bar));
+  testWidgets(
+    'feed progress played segment follows the finger when dragged right',
+    (tester) async {
+      await _pumpFeedOverlay(tester);
+      final bar = find.byKey(const Key('home-feed-progress'));
+      final gesture = await tester.startGesture(tester.getCenter(bar));
 
-    await gesture.moveBy(const Offset(800, 0));
-    await tester.pump();
+      await gesture.moveBy(const Offset(800, 0));
+      await tester.pump();
 
-    final thumbCenter = tester
-        .getRect(find.byKey(const Key('home-feed-progress-thumb')))
-        .center
-        .dx;
-    final playedRight = tester
-        .getRect(find.byKey(const Key('home-feed-progress-played')))
-        .right;
-    expect(thumbCenter, closeTo(tester.getRect(bar).right, 0.5));
-    expect(playedRight, closeTo(thumbCenter, 0.5));
+      expect(
+        tester
+            .getRect(find.byKey(const Key('home-feed-progress-played')))
+            .right,
+        closeTo(tester.getRect(bar).right, 0.5),
+      );
 
-    await gesture.up();
-    await tester.pumpAndSettle();
-  });
+      await gesture.up();
+      await tester.pumpAndSettle();
+    },
+  );
 
   testWidgets('full player drag clears chrome and release restores it', (
     tester,

test/recommend/home_hero_carousel_test.dart

@@ -0,0 +1,83 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/home_feed.dart';
+import 'package:fruitshorts/core/theme/app_colors.dart';
+import 'package:fruitshorts/l10n/app_localizations.dart';
+import 'package:fruitshorts/pages/recommend/widgets/home_hero_carousel.dart';
+
+const List<FeedBanner> _banners = [
+  FeedBanner(id: '1', imageUrl: 'https://cdn.test/a.png'),
+  FeedBanner(id: '2', imageUrl: 'https://cdn.test/b.png'),
+];
+
+Widget _harness(List<FeedBanner> banners) {
+  return MaterialApp(
+    locale: const Locale('en'),
+    supportedLocales: AppLocalizations.supportedLocales,
+    localizationsDelegates: AppLocalizations.localizationsDelegates,
+    home: Scaffold(
+      body: HomeHeroCarousel(
+        banners: banners,
+        dramaFor: (_) => null,
+        onWatch: (_) {},
+      ),
+    ),
+  );
+}
+
+Color? _dotColor(WidgetTester tester, int index) {
+  final decoration =
+      tester
+              .widget<Container>(find.byKey(Key('home-hero-dot-$index')))
+              .decoration
+          as BoxDecoration?;
+  return decoration?.color;
+}
+
+void main() {
+  testWidgets('should_keep_looping_backwards_from_the_first_banner', (
+    tester,
+  ) async {
+    await tester.pumpWidget(_harness(_banners));
+    await tester.pumpAndSettle();
+
+    expect(_dotColor(tester, 0), AppColors.brandRed);
+
+    // 从第一张往右滑：无缝轮播应该接到最后一张，而不是被边界挡住。
+    await tester.fling(find.byType(PageView), const Offset(700, 0), 1200);
+    await tester.pumpAndSettle();
+
+    expect(_dotColor(tester, 1), AppColors.brandRed);
+    expect(_dotColor(tester, 0), isNot(AppColors.brandRed));
+  });
+
+  testWidgets('should_wrap_to_first_banner_after_last_auto_advance', (
+    tester,
+  ) async {
+    await tester.pumpWidget(_harness(_banners));
+    await tester.pumpAndSettle();
+
+    // 自动播两次：第 2 张之后应回到第 1 张，且页码继续往前走不回头。
+    await tester.pump(const Duration(milliseconds: 4600));
+    await tester.pumpAndSettle();
+    expect(_dotColor(tester, 1), AppColors.brandRed);
+
+    await tester.pump(const Duration(milliseconds: 4600));
+    await tester.pumpAndSettle();
+    expect(_dotColor(tester, 0), AppColors.brandRed);
+  });
+
+  testWidgets('should_not_loop_when_only_one_banner', (tester) async {
+    await tester.pumpWidget(
+      _harness(const [FeedBanner(id: '1', imageUrl: 'https://cdn.test/a.png')]),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('home-hero-dot-0')), findsNothing);
+    await tester.pump(const Duration(milliseconds: 6000));
+    await tester.pumpAndSettle();
+    expect(tester.takeException(), isNull);
+  });
+}

test/recommend/recommend_sections_test.dart

@@ -3,6 +3,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:fruitshorts/app.dart';
+import 'package:fruitshorts/core/data/models/drama.dart';
 import 'package:fruitshorts/core/data/repositories/favorite_repository.dart';
 import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
@@ -10,6 +11,7 @@ import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/theme/app_dimens.dart';
 import 'package:fruitshorts/core/widgets/app_bottom_nav.dart';
 import 'package:fruitshorts/pages/player/player_view.dart';
+import 'package:fruitshorts/pages/recommend/recommend_discover_page.dart';
 import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
 import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
 
@@ -34,7 +36,10 @@ void main() {
     expect(find.byKey(const Key('recommend-tab-recommend')), findsOneWidget);
     expect(find.byKey(const Key('recommend-tab-playlist')), findsOneWidget);
     expect(find.byKey(const Key('recommend-tab-all')), findsOneWidget);
-    expect(find.byKey(const Key('recommend-feed-player'), skipOffstage: false), findsOneWidget);
+    expect(
+      find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+      findsOneWidget,
+    );
     expect(find.byKey(const Key('recommend-top-gradient')), findsOneWidget);
     final recommendText = tester.widget<Text>(
       find.descendant(
@@ -65,7 +70,9 @@ void main() {
       find.byKey(const Key('recommend-top-nav')),
     );
     // 右侧依次是搜索和金色礼物盒（钱包入口），礼物盒贴右边距 8。
-    final searchRect = tester.getRect(find.byKey(const Key('recommend-search')));
+    final searchRect = tester.getRect(
+      find.byKey(const Key('recommend-search')),
+    );
     final giftRect = tester.getRect(find.byKey(const Key('recommend-gift')));
     expect(giftRect.right, closeTo(topNavRect.right - 8, 0.1));
     expect(searchRect.right, lessThanOrEqualTo(giftRect.left));
@@ -78,7 +85,12 @@ void main() {
       tester
           .getRect(find.byKey(const Key('recommend-top-nav')))
           .overlaps(
-            tester.getRect(find.byKey(const Key('recommend-feed-player'), skipOffstage: false)),
+            tester.getRect(
+              find.byKey(
+                const Key('recommend-feed-player'),
+                skipOffstage: false,
+              ),
+            ),
           ),
       isTrue,
     );
@@ -387,7 +399,10 @@ void main() {
       tester.getRect(find.byKey(const Key('all-dramas-filters'))).top,
       closeTo(fixedFilterTop, 0.1),
     );
-    expect(find.byKey(const Key('all-filter-classification-all')), findsOneWidget);
+    expect(
+      find.byKey(const Key('all-filter-classification-all')),
+      findsOneWidget,
+    );
     expect(find.byKey(const Key('all-filter-category-all')), findsOneWidget);
     expect(find.byKey(const Key('all-filter-tag-all')), findsOneWidget);
     expect(
@@ -407,7 +422,10 @@ void main() {
     await tester.tap(find.byKey(const Key('recommend-tab-playlist')));
     await tester.pumpAndSettle();
     expect(find.byKey(const Key('recommend-section-hits')), findsOneWidget);
-    expect(find.byKey(const Key('recommend-feed-player'), skipOffstage: false), findsOneWidget);
+    expect(
+      find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+      findsOneWidget,
+    );
     expect(find.byType(AppBottomNav), findsOneWidget);
 
     await tester.ensureVisible(find.byKey(const Key('recommend-tab-all')));
@@ -430,7 +448,10 @@ void main() {
     await tester.drag(pages, const Offset(-320, 0));
     await tester.pumpAndSettle();
     expect(find.byKey(const Key('recommend-section-hits')), findsOneWidget);
-    expect(find.byKey(const Key('recommend-feed-player'), skipOffstage: false), findsOneWidget);
+    expect(
+      find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+      findsOneWidget,
+    );
     expect(
       tester
           .widget<Text>(
@@ -454,7 +475,10 @@ void main() {
 
     await tester.drag(pages, const Offset(640, 0));
     await tester.pumpAndSettle();
-    expect(find.byKey(const Key('recommend-feed-player'), skipOffstage: false), findsOneWidget);
+    expect(
+      find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+      findsOneWidget,
+    );
     expect(find.byKey(const Key('recommend-tab-recommend')), findsOneWidget);
     _drainOverflows(tester);
   });
@@ -497,7 +521,9 @@ void main() {
     await _pumpRecommend(tester);
 
     final gesture = await tester.startGesture(
-      tester.getCenter(find.byKey(const Key('recommend-feed-player'), skipOffstage: false)),
+      tester.getCenter(
+        find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+      ),
     );
     await gesture.moveBy(const Offset(0, 80));
     await tester.pump();
@@ -505,7 +531,10 @@ void main() {
     final feedScroll = tester.state<ScrollableState>(
       find
           .descendant(
-            of: find.byKey(const Key('recommend-feed-player'), skipOffstage: false),
+            of: find.byKey(
+              const Key('recommend-feed-player'),
+              skipOffstage: false,
+            ),
             matching: find.byType(Scrollable),
           )
           .first,
@@ -544,6 +573,25 @@ void main() {
     expect(search.focusNode?.hasFocus, isTrue);
     _drainOverflows(tester);
   });
+
+  test('should_judge_new_arrival_only_by_tag_code', () {
+    Drama tagged({String tagCode = '', String tag = ''}) => Drama(
+      id: 'tagged',
+      title: 'Tagged',
+      synopsis: 'synopsis',
+      posterUrl: '',
+      tag: tag,
+      tagCode: tagCode,
+    );
+
+    expect(isNewArrivalTag(tagged(tagCode: 'NEW_ARRIVAL')), isTrue);
+    expect(isNewArrivalTag(tagged(tagCode: ' new_arrival ')), isTrue);
+    // 其它语义码（以及没有码的标签）都不算上新，文案不参与判断。
+    expect(isNewArrivalTag(tagged(tagCode: 'HOT')), isFalse);
+    expect(isNewArrivalTag(tagged(tagCode: 'NEW_RELEASE')), isFalse);
+    expect(isNewArrivalTag(tagged(tag: '上新')), isFalse);
+    expect(isNewArrivalTag(tagged()), isFalse);
+  });
 }
 
 /// 测试字体（等宽方块字形）比真实字体宽/高，卡片固定高度会报 2~4px

test/theme/app_dimens_test.dart

@@ -19,7 +19,7 @@ void main() {
     expect(AppDimens.sectionTitle, 16);
     expect(AppDimens.pageTitle, 20);
     expect(AppDimens.navLabel, 13);
-    expect(AppDimens.navLabelGap, 5);
+    expect(AppDimens.navLabelGap, 1);
     expect(AppDimens.navIcon, 30);
     expect(AppDimens.buttonHeight, 48);
     expect(AppDimens.primaryButtonHeight, 52);

test/watch/watch_records_controller_test.dart

@@ -8,6 +8,7 @@ import 'package:fruitshorts/core/data/models/feed_page.dart';
 import 'package:fruitshorts/core/data/models/home_feed.dart';
 import 'package:fruitshorts/core/data/models/page_result.dart';
 import 'package:fruitshorts/core/data/models/watch_progress.dart';
+import 'package:fruitshorts/core/data/models/watch_record.dart';
 import 'package:fruitshorts/core/data/repositories/catalog_repository.dart';
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
 import 'package:fruitshorts/core/data/remote/api_client.dart';
@@ -278,6 +279,25 @@ void main() {
 
     expect(controller.error, '账号不存在，请先注册');
   });
+
+  test('should_prefer_page_landscape_cover_and_fall_back_to_portrait', () {
+    WatchRecord record(String? landscape) => WatchRecord(
+      progress: WatchProgress(
+        dramaId: '1',
+        episodeId: 'episode-1',
+        position: const Duration(seconds: 12),
+        duration: const Duration(seconds: 60),
+        dramaCover: '/files/poster.webp',
+        dramaCoverLandscape: landscape,
+      ),
+    );
+
+    expect(
+      record('/files/wide.webp').displayLandscapeCover,
+      '/files/wide.webp',
+    );
+    expect(record(null).displayLandscapeCover, '/files/poster.webp');
+  });
 }
 
 class ControlledWatchHistory implements WatchHistoryRepository {