diff --git a/lib/core/data/models/account_device.dart b/lib/core/data/models/account_device.dart
new file mode 100644
index 0000000..35c64d5
--- /dev/null
+++ b/lib/core/data/models/account_device.dart
@@ -0,0 +1,40 @@
+// Author: fruit.com.cn
+
+import 'json_numbers.dart';
+
+/// 登录设备列表项；只保留页面展示需要的字段。
+class AccountDevice {
+  const AccountDevice({
+    required this.id,
+    required this.deviceId,
+    required this.platform,
+    required this.deviceModel,
+    required this.status,
+    this.firstSeenAt,
+    this.lastSeenAt,
+  });
+
+  final String id;
+  final String deviceId;
+  final String platform;
+  final String deviceModel;
+  final String status;
+  final DateTime? firstSeenAt;
+  final DateTime? lastSeenAt;
+
+  /// 兼容 Long 字符串与数字；userId/deleted 不解析、不展示。
+  factory AccountDevice.fromJson(Map<String, dynamic> json) {
+    return AccountDevice(
+      id: jsonToId(json['id']),
+      deviceId: json['deviceId']?.toString() ?? '',
+      platform: json['platform']?.toString() ?? '',
+      deviceModel: json['deviceModel']?.toString() ?? '',
+      status: json['status']?.toString() ?? '',
+      firstSeenAt: _date(json['firstSeenAt']),
+      lastSeenAt: _date(json['lastSeenAt']),
+    );
+  }
+
+  static DateTime? _date(dynamic value) =>
+      DateTime.tryParse(value?.toString() ?? '');
+}
diff --git a/lib/core/data/models/account_export.dart b/lib/core/data/models/account_export.dart
new file mode 100644
index 0000000..8bf0298
--- /dev/null
+++ b/lib/core/data/models/account_export.dart
@@ -0,0 +1,74 @@
+// Author: fruit.com.cn
+
+import 'dart:convert';
+
+import 'account_device.dart';
+import 'account_profile.dart';
+
+/// 导出中的登录凭据摘要。
+class AccountCredential {
+  const AccountCredential({
+    required this.type,
+    required this.masked,
+    required this.verified,
+  });
+
+  final String type;
+  final String masked;
+  final bool verified;
+
+  factory AccountCredential.fromJson(Map<String, dynamic> json) {
+    return AccountCredential(
+      type: json['type']?.toString() ?? '',
+      masked: json['masked']?.toString() ?? '',
+      verified: json['verified'] == true,
+    );
+  }
+}
+
+/// 账号导出数据；`rawJson` 用于复制后端下发的完整内容。
+class AccountExport {
+  const AccountExport({
+    required this.profile,
+    required this.credentials,
+    required this.consentCount,
+    required this.devices,
+    required this.raw,
+  });
+
+  final AccountProfile profile;
+  final List<AccountCredential> credentials;
+  final int consentCount;
+  final List<AccountDevice> devices;
+  final Map<String, dynamic> raw;
+
+  int get deviceCount => devices.length;
+  String get rawJson => const JsonEncoder.withIndent('  ').convert(raw);
+
+  factory AccountExport.fromJson(Map<String, dynamic> json) {
+    final profile = _map(json['profile']);
+    final credentials = _list(json['credentials']);
+    final consents = _list(json['consents']);
+    final devices = _list(json['devices']);
+    return AccountExport(
+      profile: AccountProfile.fromJson(profile),
+      credentials: [
+        for (final item in credentials) AccountCredential.fromJson(item),
+      ],
+      consentCount: consents.length,
+      devices: [for (final item in devices) AccountDevice.fromJson(item)],
+      raw: json,
+    );
+  }
+
+  static Map<String, dynamic> _map(dynamic value) =>
+      value is Map ? value.cast<String, dynamic>() : const {};
+
+  static List<Map<String, dynamic>> _list(dynamic value) {
+    if (value is! List) return const [];
+    return [
+      for (final item in value)
+        if (item is Map) item.cast<String, dynamic>(),
+    ];
+  }
+}
diff --git a/lib/core/data/models/account_profile.dart b/lib/core/data/models/account_profile.dart
new file mode 100644
index 0000000..f874723
--- /dev/null
+++ b/lib/core/data/models/account_profile.dart
@@ -0,0 +1,101 @@
+// Author: fruit.com.cn
+
+import 'auth_session.dart';
+import 'json_numbers.dart';
+
+/// 当前账号资料；字段与 `GET/PUT /app/me` 的实际响应一致。
+class AccountProfile {
+  const AccountProfile({
+    required this.uid,
+    required this.nickname,
+    required this.avatarUrl,
+    required this.gender,
+    required this.countryCode,
+    required this.regionCode,
+    required this.language,
+    required this.timezone,
+    required this.currency,
+    required this.status,
+    required this.maskedTarget,
+    required this.vipLevel,
+    this.createdAt,
+    this.lastLoginAt,
+    this.vipExpireAt,
+  });
+
+  final String uid;
+  final String nickname;
+  final String avatarUrl;
+  final String gender;
+  final String countryCode;
+  final String regionCode;
+  final String language;
+  final String timezone;
+  final String currency;
+  final String status;
+  final String maskedTarget;
+  final int vipLevel;
+  final DateTime? createdAt;
+  final DateTime? lastLoginAt;
+  final DateTime? vipExpireAt;
+
+  /// 解析资料响应；缺失字段按空值处理。
+  factory AccountProfile.fromJson(Map<String, dynamic> json) {
+    return AccountProfile(
+      uid: jsonToId(json['uid']),
+      nickname: json['nickname']?.toString() ?? '',
+      avatarUrl: json['avatarUrl']?.toString() ?? '',
+      gender: json['gender']?.toString() ?? '',
+      countryCode: json['countryCode']?.toString() ?? '',
+      regionCode: json['regionCode']?.toString() ?? '',
+      language: json['language']?.toString() ?? '',
+      timezone: json['timezone']?.toString() ?? '',
+      currency: json['currency']?.toString() ?? '',
+      status: json['status']?.toString() ?? '',
+      maskedTarget: json['maskedTarget']?.toString() ?? '',
+      vipLevel: jsonToInt(json['vipLevel']),
+      createdAt: _date(json['createdAt']),
+      lastLoginAt: _date(json['lastLoginAt']),
+      vipExpireAt: _date(json['vipExpireAt']),
+    );
+  }
+
+  static DateTime? _date(dynamic value) =>
+      DateTime.tryParse(value?.toString() ?? '');
+
+  /// 转为本地登录态摘要；只同步登录态实际使用的三项。
+  AuthUser toAuthUser() =>
+      AuthUser(uid: uid, nickname: nickname, avatarUrl: avatarUrl);
+}
+
+/// 资料更新请求；null 字段不会进入请求体。
+class AccountProfileUpdate {
+  const AccountProfileUpdate({
+    this.nickname,
+    this.avatarUrl,
+    this.gender,
+    this.birthday,
+    this.language,
+    this.timezone,
+    this.regionCode,
+  });
+
+  final String? nickname;
+  final String? avatarUrl;
+  final String? gender;
+  final String? birthday;
+  final String? language;
+  final String? timezone;
+  final String? regionCode;
+
+  /// 只发送本次有值的字段。
+  Map<String, dynamic> toJson() => {
+    if (nickname != null) 'nickname': nickname,
+    if (avatarUrl != null) 'avatarUrl': avatarUrl,
+    if (gender != null) 'gender': gender,
+    if (birthday != null) 'birthday': birthday,
+    if (language != null) 'language': language,
+    if (timezone != null) 'timezone': timezone,
+    if (regionCode != null) 'regionCode': regionCode,
+  };
+}
diff --git a/lib/core/data/remote/account_api.dart b/lib/core/data/remote/account_api.dart
new file mode 100644
index 0000000..44c78bf
--- /dev/null
+++ b/lib/core/data/remote/account_api.dart
@@ -0,0 +1,52 @@
+// Author: fruit.com.cn
+
+import '../models/account_device.dart';
+import '../models/account_export.dart';
+import '../models/account_profile.dart';
+import 'api_client.dart';
+
+/// 个人中心接口：`/app/me*`。
+class AccountApi {
+  const AccountApi(this._client);
+
+  final ApiClient _client;
+
+  Future<AccountProfile> profile() async {
+    final data = await _client.get('/app/me');
+    return AccountProfile.fromJson(_map(data));
+  }
+
+  Future<AccountProfile> updateProfile(AccountProfileUpdate update) async {
+    final data = await _client.put('/app/me', body: update.toJson());
+    return AccountProfile.fromJson(_map(data));
+  }
+
+  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>()),
+    ];
+  }
+
+  Future<AccountExport> export() async {
+    final data = await _client.get('/app/me/export');
+    return AccountExport.fromJson(_map(data));
+  }
+
+  Future<DateTime?> deactivate({String reason = ''}) async {
+    final data = await _client.post(
+      '/app/me/deactivate',
+      body: {'reason': reason.trim()},
+    );
+    return DateTime.tryParse(data?.toString() ?? '');
+  }
+
+  Future<void> cancelDeactivation() async {
+    await _client.post('/app/me/deactivate/cancel');
+  }
+
+  Map<String, dynamic> _map(Object? data) =>
+      data is Map ? data.cast<String, dynamic>() : const {};
+}
diff --git a/lib/core/data/repositories/account_repository.dart b/lib/core/data/repositories/account_repository.dart
new file mode 100644
index 0000000..7bc9cfe
--- /dev/null
+++ b/lib/core/data/repositories/account_repository.dart
@@ -0,0 +1,47 @@
+// Author: fruit.com.cn
+
+import '../models/account_device.dart';
+import '../models/account_export.dart';
+import '../models/account_profile.dart';
+import '../remote/account_api.dart';
+
+/// 账号中心的数据来源。
+abstract interface class AccountRepository {
+  Future<AccountProfile> profile();
+
+  Future<AccountProfile> updateProfile(AccountProfileUpdate update);
+
+  Future<List<AccountDevice>> devices();
+
+  Future<AccountExport> export();
+
+  Future<DateTime?> deactivate(String reason);
+
+  Future<void> cancelDeactivation();
+}
+
+/// HTTP 实现。
+class HttpAccountRepository implements AccountRepository {
+  const HttpAccountRepository(this._api);
+
+  final AccountApi _api;
+
+  @override
+  Future<AccountProfile> profile() => _api.profile();
+
+  @override
+  Future<AccountProfile> updateProfile(AccountProfileUpdate update) =>
+      _api.updateProfile(update);
+
+  @override
+  Future<List<AccountDevice>> devices() => _api.devices();
+
+  @override
+  Future<AccountExport> export() => _api.export();
+
+  @override
+  Future<DateTime?> deactivate(String reason) => _api.deactivate(reason: reason);
+
+  @override
+  Future<void> cancelDeactivation() => _api.cancelDeactivation();
+}
diff --git a/test/account/account_api_test.dart b/test/account/account_api_test.dart
new file mode 100644
index 0000000..5bb1e97
--- /dev/null
+++ b/test/account/account_api_test.dart
@@ -0,0 +1,187 @@
+// Author: fruit.com.cn
+
+import 'dart:convert';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/account_profile.dart';
+import 'package:fruitshorts/core/data/remote/account_api.dart';
+import 'package:fruitshorts/core/data/remote/api_client.dart';
+
+import '../support/fake_http_adapter.dart';
+
+void main() {
+  String envelope(Object? data, {int code = 0, String message = 'ok'}) =>
+      jsonEncode({'code': code, 'message': message, 'data': data});
+
+  AccountApi apiWith(FakeHttpAdapter adapter) => AccountApi(
+    ApiClient(baseUrl: 'http://127.0.0.1:8081', adapter: adapter),
+  );
+
+  test('should_get_profile_and_parse_numeric_vip_level', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(
+        envelope({
+          'uid': 'U-K19',
+          'nickname': 'Nadia',
+          'avatarUrl': 'https://cdn/avatar.png',
+          'gender': 'female',
+          'countryCode': 'ID',
+          'regionCode': 'JK',
+          'language': 'id',
+          'timezone': 'Asia/Jakarta',
+          'currency': 'IDR',
+          'status': 'normal',
+          'maskedTarget': 'n***@example.com',
+          'createdAt': '2026-10-19T08:00:00',
+          'lastLoginAt': '2026-10-19T09:00:00',
+          'vipLevel': 2,
+          'vipExpireAt': null,
+        }),
+      ),
+    );
+
+    final profile = await apiWith(adapter).profile();
+
+    expect(adapter.requests.single.method, 'GET');
+    expect(adapter.requests.single.uri.path, '/app/me');
+    expect(profile.uid, 'U-K19');
+    expect(profile.nickname, 'Nadia');
+    expect(profile.vipLevel, 2);
+    expect(profile.createdAt, DateTime(2026, 10, 19, 8));
+  });
+
+  test('should_send_only_changed_profile_fields_when_updating', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(
+        envelope({'uid': 'U-K19', 'nickname': 'Nadia Baru'}),
+      ),
+    );
+
+    final profile = await apiWith(adapter).updateProfile(
+      const AccountProfileUpdate(
+        nickname: 'Nadia Baru',
+        gender: 'female',
+        birthday: '1999-01-02',
+      ),
+    );
+
+    expect(adapter.requests.single.method, 'PUT');
+    expect(adapter.requests.single.uri.path, '/app/me');
+    expect(adapter.requests.single.data, {
+      'nickname': 'Nadia Baru',
+      'gender': 'female',
+      'birthday': '1999-01-02',
+    });
+    expect(profile.nickname, 'Nadia Baru');
+  });
+
+  test('should_parse_device_ids_from_strings_and_numbers', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(
+        envelope([
+          {
+            'id': '2111012753262120962',
+            'userId': '2111012753262120000',
+            'deviceId': 'd-device-1234',
+            'platform': 'IOS',
+            'deviceModel': 'iPhone 15',
+            'firstSeenAt': '2026-10-18T08:00:00',
+            'lastSeenAt': '2026-10-19T09:00:00',
+            'status': 'active',
+            'deleted': 0,
+          },
+          {
+            'id': 7,
+            'deviceId': 'd-android-5678',
+            'platform': 'ANDROID',
+          },
+        ]),
+      ),
+    );
+
+    final devices = await apiWith(adapter).devices();
+
+    expect(adapter.requests.single.uri.path, '/app/me/devices');
+    expect(devices.first.id, '2111012753262120962');
+    expect(devices.first.lastSeenAt, DateTime(2026, 10, 19, 9));
+    expect(devices.last.id, '7');
+    expect(devices.last.deviceModel, '');
+  });
+
+  test('should_parse_export_counts_and_keep_complete_json', () async {
+    final data = {
+      'profile': {'uid': 'U-K19', 'nickname': 'Nadia'},
+      'credentials': [
+        {'type': 'EMAIL', 'masked': 'n***@example.com', 'verified': true},
+      ],
+      'consents': [
+        {'scene': 'privacy', 'version': '2026-10-01'},
+      ],
+      'devices': [
+        {'id': '9', 'deviceId': 'd-device-1234', 'status': 'active'},
+      ],
+    };
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(envelope(data)),
+    );
+
+    final export = await apiWith(adapter).export();
+
+    expect(adapter.requests.single.uri.path, '/app/me/export');
+    expect(export.profile.nickname, 'Nadia');
+    expect(export.credentials.single.masked, 'n***@example.com');
+    expect(export.credentials.single.verified, isTrue);
+    expect(export.consentCount, 1);
+    expect(export.deviceCount, 1);
+    expect(export.rawJson, contains('"credentials"'));
+  });
+
+  test('should_request_deactivation_with_reason_and_parse_schedule', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(
+        envelope('2026-11-03T09:30:00'),
+      ),
+    );
+
+    final scheduledAt = await apiWith(
+      adapter,
+    ).deactivate(reason: '不再使用');
+
+    expect(adapter.requests.single.method, 'POST');
+    expect(adapter.requests.single.uri.path, '/app/me/deactivate');
+    expect(adapter.requests.single.data, {'reason': '不再使用'});
+    expect(scheduledAt, DateTime(2026, 11, 3, 9, 30));
+  });
+
+  test('should_cancel_deactivation_with_post_and_no_body', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(envelope(null)),
+    );
+
+    await apiWith(adapter).cancelDeactivation();
+
+    expect(adapter.requests.single.method, 'POST');
+    expect(
+      adapter.requests.single.uri.path,
+      '/app/me/deactivate/cancel',
+    );
+    expect(adapter.requests.single.data, isNull);
+  });
+
+  test('should_keep_backend_message_when_cancel_fails', () async {
+    final adapter = FakeHttpAdapter(
+      (_) async => FakeHttpResponse(
+        envelope(null, code: 100009, message: '没有待处理的注销申请'),
+      ),
+    );
+
+    await expectLater(
+      apiWith(adapter).cancelDeactivation(),
+      throwsA(
+        isA<ApiException>()
+            .having((error) => error.code, 'code', 100009)
+            .having((error) => error.message, 'message', '没有待处理的注销申请'),
+      ),
+    );
+  });
+}