merge: 增加推荐剧单渐变背景

docs/plans/PROGRESS.md

@@ -1270,3 +1270,8 @@ $ flutter test
 - 继续观看全部入口可切到追剧页播放历史 tab；`flutter analyze`：No issues found。
 - 用户区昵称与 UID 收紧为 4 间距，昵称列相对头像垂直居中；UID 12、复制图标 14。
 - UID 行改用 GestureDetector 并锁定 16 高，昵称与 UID 间距 2、昵称行高 1.15，避免 Material 热区撑高；`flutter analyze`：No issues found。
+
+## 2026-10-22 推荐剧单渐变背景
+
+- 仅为推荐页「剧单」子页增加暖黑三段渐变和品牌橙径向光晕，推荐视频与全部短剧背景不变。
+- 渐变复用「我的」页色值，光晕使用 `#26FF6B2C`；分区与卡片样式保持原样；`flutter analyze`：No issues found。

lib/core/theme/app_colors.dart

@@ -101,6 +101,7 @@ abstract final class AppColors {
   static const mineIconSupport = Color(0xFFA78BFA);
   static const mineIconLanguage = Color(0xFF22D3EE);
   static const mineIconSettings = Color(0xFFA1A1AA);
+  static const recommendPlaylistGlow = Color(0x26FF6B2C);
 
   /// 次级文字与列表 chevron。
   static const textPrimary = Color(0xFFFFFFFF);

lib/pages/recommend/recommend_page.dart

@@ -68,14 +68,7 @@ class _RecommendPageState extends State<RecommendPage> {
                   ),
                   _KeepAliveTab(
                     key: const PageStorageKey('recommend-tab-playlists'),
-                    child: _withTopNavSpace(
+                    child: _recommendPlaylists(categories),
-                      RecommendSectionsView(
-                        feedController: widget.feedController,
-                        categories: categories,
-                        onOpenDrama: _openDrama,
-                        onMore: _handleMore,
-                      ),
-                    ),
                   ),
                   _KeepAliveTab(
                     key: const PageStorageKey('recommend-tab-all'),
@@ -173,6 +166,50 @@ class _RecommendPageState extends State<RecommendPage> {
     );
   }
 
+  Widget _recommendPlaylists(CategoryController categories) {
+    return DecoratedBox(
+      key: const Key('recommend-playlist-surface'),
+      decoration: const BoxDecoration(
+        gradient: LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [
+            AppColors.mineGradientTop,
+            AppColors.mineGradientMiddle,
+            AppColors.mineGradientBottom,
+          ],
+          stops: [0, 0.4, 0.75],
+        ),
+      ),
+      child: Stack(
+        fit: StackFit.expand,
+        children: [
+          const DecoratedBox(
+            key: Key('recommend-playlist-glow'),
+            decoration: BoxDecoration(
+              gradient: RadialGradient(
+                center: Alignment(0, -0.95),
+                radius: 0.9,
+                colors: [
+                  AppColors.recommendPlaylistGlow,
+                  AppColors.transparent,
+                ],
+              ),
+            ),
+          ),
+          _withTopNavSpace(
+            RecommendSectionsView(
+              feedController: widget.feedController,
+              categories: categories,
+              onOpenDrama: _openDrama,
+              onMore: _handleMore,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   void _selectTab(RecommendInnerTab tab) {
     setState(() {
       _tab = tab;

test/recommend/recommend_sections_test.dart

@@ -143,6 +143,31 @@ void main() {
     expect(find.text('New This Week'), findsOneWidget);
     expect(find.text('Costume Drama Awards'), findsOneWidget);
     expect(find.byType(AppBottomNav), findsOneWidget);
+    final playlistSurface = tester.widget<DecoratedBox>(
+      find.byKey(const Key('recommend-playlist-surface')),
+    );
+    final playlistGradient =
+        (playlistSurface.decoration as BoxDecoration).gradient!
+            as LinearGradient;
+    expect(playlistGradient.begin, Alignment.topCenter);
+    expect(playlistGradient.end, Alignment.bottomCenter);
+    expect(playlistGradient.colors, const [
+      AppColors.mineGradientTop,
+      AppColors.mineGradientMiddle,
+      AppColors.mineGradientBottom,
+    ]);
+    expect(playlistGradient.stops, const [0, 0.4, 0.75]);
+    final playlistGlow = tester.widget<DecoratedBox>(
+      find.byKey(const Key('recommend-playlist-glow')),
+    );
+    final glowGradient =
+        (playlistGlow.decoration as BoxDecoration).gradient! as RadialGradient;
+    expect(glowGradient.center, const Alignment(0, -0.95));
+    expect(glowGradient.radius, 0.9);
+    expect(glowGradient.colors, const [
+      AppColors.recommendPlaylistGlow,
+      AppColors.transparent,
+    ]);
     final sectionTitle = tester.widget<Text>(find.text("This Week's Hits"));
     expect(sectionTitle.style?.fontSize, AppDimens.recommendSectionTitle);
     expect(sectionTitle.style?.fontWeight, FontWeight.w700);