diff --git a/lib/models/search_result.dart b/lib/models/search_result.dart
index aeeebf23..9a820a47 100644
--- a/lib/models/search_result.dart
+++ b/lib/models/search_result.dart
@@ -150,10 +150,9 @@ class SearchStartEvent extends SearchEvent {
   SearchStartEvent({
     required this.query,
     required this.totalSources,
-    required int timestamp,
+    required super.timestamp,
   }) : super(
           type: SearchEventType.start,
-          timestamp: timestamp,
         );
 
   factory SearchStartEvent.fromJson(Map<String, dynamic> json) {
@@ -175,10 +174,9 @@ class SearchSourceResultEvent extends SearchEvent {
     required this.source,
     required this.sourceName,
     required this.results,
-    required int timestamp,
+    required super.timestamp,
   }) : super(
           type: SearchEventType.sourceResult,
-          timestamp: timestamp,
         );
 
   factory SearchSourceResultEvent.fromJson(Map<String, dynamic> json) {
@@ -206,10 +204,9 @@ class SearchSourceErrorEvent extends SearchEvent {
     required this.source,
     required this.sourceName,
     required this.error,
-    required int timestamp,
+    required super.timestamp,
   }) : super(
           type: SearchEventType.sourceError,
-          timestamp: timestamp,
         );
 
   factory SearchSourceErrorEvent.fromJson(Map<String, dynamic> json) {
@@ -230,10 +227,9 @@ class SearchCompleteEvent extends SearchEvent {
   SearchCompleteEvent({
     required this.totalResults,
     required this.completedSources,
-    required int timestamp,
+    required super.timestamp,
   }) : super(
           type: SearchEventType.complete,
-          timestamp: timestamp,
         );
 
   factory SearchCompleteEvent.fromJson(Map<String, dynamic> json) {
diff --git a/lib/screens/anime_screen.dart b/lib/screens/anime_screen.dart
index 132adac5..9c8d25f5 100644
--- a/lib/screens/anime_screen.dart
+++ b/lib/screens/anime_screen.dart
@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:google_fonts/google_fonts.dart';
 import 'package:provider/provider.dart';
 import '../services/theme_service.dart';
 import '../widgets/capsule_tab_switcher.dart';
diff --git a/lib/screens/live_player_screen.dart b/lib/screens/live_player_screen.dart
index 87ffb110..647b9f9e 100644
--- a/lib/screens/live_player_screen.dart
+++ b/lib/screens/live_player_screen.dart
@@ -433,10 +433,12 @@ class _LivePlayerScreenState extends State<LivePlayerScreen>
             children: [
               Column(
                 children: [
-                  // Windows 自定义标题栏
+                  // Windows 自定义标题栏（跟随主题）
                   if (Platform.isWindows)
-                    const WindowsTitleBar(
-                      customBackgroundColor: Color(0xFF000000),
+                    WindowsTitleBar(
+                      customBackgroundColor: isDarkMode
+                          ? const Color(0xFF121212)
+                          : const Color(0xFFf5f5f5),
                     ),
                   // 主要内容
                   Expanded(
@@ -1798,8 +1800,8 @@ class _LivePlayerScreenState extends State<LivePlayerScreen>
                     Container(
                       width: 4,
                       height: 4,
-                      decoration: BoxDecoration(
-                        color: const Color(0xFF27ae60),
+                      decoration: const BoxDecoration(
+                        color: Color(0xFF27ae60),
                         shape: BoxShape.circle,
                       ),
                     ),
diff --git a/lib/screens/login_screen.dart b/lib/screens/login_screen.dart
index c2fbe4cc..9b437793 100644
--- a/lib/screens/login_screen.dart
+++ b/lib/screens/login_screen.dart
@@ -28,6 +28,11 @@ class _LoginScreenState extends State<LoginScreen> {
   bool _isLoading = false;
   bool _isFormValid = false;
   bool _isLocalMode = false;
+  bool _showAdvancedSettings = false;
+  bool _enableBrowserHeaders = false;
+  final _userAgentController = TextEditingController();
+  final _customHeaderNameController = TextEditingController();
+  final _customHeaderValueController = TextEditingController();
 
   // 点击计数器相关
   int _logoTapCount = 0;
@@ -41,6 +46,23 @@ class _LoginScreenState extends State<LoginScreen> {
     _passwordController.addListener(_validateForm);
     _subscriptionUrlController.addListener(_validateForm);
     _loadSavedUserData();
+    _loadAdvancedSettings();
+  }
+
+  void _loadAdvancedSettings() async {
+    final ua = await UserDataService.getCustomUserAgent();
+    final enabled = await UserDataService.getEnableBrowserHeaders();
+    final header = await UserDataService.getCustomHeader();
+    if (mounted) {
+      setState(() {
+        _userAgentController.text = ua;
+        _enableBrowserHeaders = enabled;
+        if (header.isNotEmpty) {
+          _customHeaderNameController.text = header.keys.first;
+          _customHeaderValueController.text = header.values.first;
+        }
+      });
+    }
   }
 
   void _loadSavedUserData() async {
@@ -82,6 +104,9 @@ class _LoginScreenState extends State<LoginScreen> {
     _usernameController.dispose();
     _passwordController.dispose();
     _subscriptionUrlController.dispose();
+    _userAgentController.dispose();
+    _customHeaderNameController.dispose();
+    _customHeaderValueController.dispose();
     _tapTimer?.cancel();
     super.dispose();
   }
@@ -257,16 +282,23 @@ class _LoginScreenState extends State<LoginScreen> {
   }
 
   String _parseCookies(http.Response response) {
-    // 解析 Set-Cookie 头部
-    List<String> cookies = [];
-
-    // 获取所有 Set-Cookie 头部
-    final setCookieHeaders = response.headers['set-cookie'];
-    if (setCookieHeaders != null) {
-      // HTTP 头部通常是 String 类型
-      final cookieParts = setCookieHeaders.split(';');
-      if (cookieParts.isNotEmpty) {
-        cookies.add(cookieParts[0].trim());
+    final allCookies = response.headers['set-cookie'];
+    if (allCookies == null || allCookies.isEmpty) return '';
+
+    final lines = allCookies
+        .split('\n')
+        .expand((line) => line.split(','))
+        .where((s) => s.trim().isNotEmpty)
+        .toList();
+
+    final cookies = <String>[];
+    for (final line in lines) {
+      final semicolonIdx = line.indexOf(';');
+      final nameValue = semicolonIdx > 0
+          ? line.substring(0, semicolonIdx).trim()
+          : line.trim();
+      if (nameValue.contains('=')) {
+        cookies.add(nameValue);
       }
     }
 
@@ -301,16 +333,37 @@ class _LoginScreenState extends State<LoginScreen> {
       });
 
       try {
+        // 保存高级设置
+        await UserDataService.saveCustomUserAgent(_userAgentController.text);
+        await UserDataService.saveEnableBrowserHeaders(_enableBrowserHeaders);
+        await UserDataService.saveCustomHeader(
+            _customHeaderNameController.text,
+            _customHeaderValueController.text);
+
         // 处理 URL
         String baseUrl = _processUrl(_urlController.text);
         String loginUrl = '$baseUrl/api/login';
 
+        final loginHeaders = <String, String>{
+          'Content-Type': 'application/json',
+        };
+        loginHeaders['User-Agent'] = _userAgentController.text;
+        if (_enableBrowserHeaders) {
+          loginHeaders['Accept-Language'] = 'zh-CN,zh;q=0.9,en;q=0.8';
+          loginHeaders['Sec-Fetch-Site'] = 'same-origin';
+          loginHeaders['Sec-Fetch-Mode'] = 'cors';
+          loginHeaders['Sec-Fetch-Dest'] = 'empty';
+        }
+        if (_customHeaderNameController.text.isNotEmpty &&
+            _customHeaderValueController.text.isNotEmpty) {
+          loginHeaders[_customHeaderNameController.text.trim()] =
+              _customHeaderValueController.text.trim();
+        }
+
         // 发送登录请求
         final response = await http.post(
           Uri.parse(loginUrl),
-          headers: {
-            'Content-Type': 'application/json',
-          },
+          headers: loginHeaders,
           body: json.encode({
             'username': _usernameController.text,
             'password': _passwordController.text,
@@ -502,6 +555,168 @@ class _LoginScreenState extends State<LoginScreen> {
     }
   }
 
+  Widget _buildAdvancedSettingsToggle() {
+    return Padding(
+      padding: const EdgeInsets.only(top: 12),
+      child: GestureDetector(
+        onTap: () {
+          setState(() {
+            _showAdvancedSettings = !_showAdvancedSettings;
+          });
+        },
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              _showAdvancedSettings
+                  ? Icons.expand_less
+                  : Icons.expand_more,
+              color: const Color(0xFF7f8c8d),
+              size: 18,
+            ),
+            const SizedBox(width: 4),
+            Text(
+              '高级设置',
+              style: FontUtils.poppins(
+                fontSize: 13,
+                color: const Color(0xFF7f8c8d),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildAdvancedSettingsPanel() {
+    return Padding(
+      padding: const EdgeInsets.only(top: 12),
+      child: Container(
+        decoration: BoxDecoration(
+          color: Colors.white.withValues(alpha: 0.4),
+          borderRadius: BorderRadius.circular(12),
+        ),
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              children: [
+                Text(
+                  'User-Agent',
+                  style: FontUtils.poppins(
+                    fontSize: 12,
+                    fontWeight: FontWeight.w600,
+                    color: const Color(0xFF2c3e50),
+                  ),
+                ),
+                const Spacer(),
+                SizedBox(
+                  height: 20,
+                  child: Switch.adaptive(
+                    value: _enableBrowserHeaders,
+                    onChanged: (v) {
+                      setState(() {
+                        _enableBrowserHeaders = v;
+                      });
+                    },
+                    materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                  ),
+                ),
+                Text(
+                  '浏览器头',
+                  style: FontUtils.poppins(
+                    fontSize: 12,
+                    color: const Color(0xFF7f8c8d),
+                  ),
+                ),
+              ],
+            ),
+            const SizedBox(height: 8),
+            TextFormField(
+              controller: _userAgentController,
+              maxLines: 2,
+              minLines: 1,
+              style: FontUtils.poppins(
+                fontSize: 12,
+                color: const Color(0xFF2c3e50),
+              ),
+              decoration: InputDecoration(
+                hintText: '自定义 User-Agent',
+                hintStyle: FontUtils.poppins(
+                  fontSize: 12,
+                  color: const Color(0xFFbdc3c7),
+                ),
+                filled: true,
+                fillColor: Colors.white.withValues(alpha: 0.5),
+                border: OutlineInputBorder(
+                  borderRadius: BorderRadius.circular(8),
+                  borderSide: BorderSide.none,
+                ),
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 12, vertical: 10),
+              ),
+            ),
+            const SizedBox(height: 12),
+            Row(
+              children: [
+                Expanded(
+                  child: TextFormField(
+                    controller: _customHeaderNameController,
+                    style: FontUtils.poppins(
+                      fontSize: 12,
+                      color: const Color(0xFF2c3e50),
+                    ),
+                    decoration: InputDecoration(
+                      hintText: '自定义头名称',
+                      hintStyle: FontUtils.poppins(
+                        fontSize: 12,
+                        color: const Color(0xFFbdc3c7),
+                      ),
+                      filled: true,
+                      fillColor: Colors.white.withValues(alpha: 0.5),
+                      border: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(8),
+                        borderSide: BorderSide.none,
+                      ),
+                      contentPadding: const EdgeInsets.symmetric(
+                        horizontal: 12, vertical: 10),
+                    ),
+                  ),
+                ),
+                const SizedBox(width: 8),
+                Expanded(
+                  child: TextFormField(
+                    controller: _customHeaderValueController,
+                    style: FontUtils.poppins(
+                      fontSize: 12,
+                      color: const Color(0xFF2c3e50),
+                    ),
+                    decoration: InputDecoration(
+                      hintText: '自定义头值',
+                      hintStyle: FontUtils.poppins(
+                        fontSize: 12,
+                        color: const Color(0xFFbdc3c7),
+                      ),
+                      filled: true,
+                      fillColor: Colors.white.withValues(alpha: 0.5),
+                      border: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(8),
+                        borderSide: BorderSide.none,
+                      ),
+                      contentPadding: const EdgeInsets.symmetric(
+                        horizontal: 12, vertical: 10),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     final isTablet = DeviceUtils.isTablet(context);
@@ -775,7 +990,7 @@ class _LoginScreenState extends State<LoginScreen> {
                           ? Row(
                               mainAxisAlignment: MainAxisAlignment.center,
                               children: [
-                                SizedBox(
+                                const SizedBox(
                                   height: 18,
                                   width: 18,
                                   child: CircularProgressIndicator(
@@ -805,6 +1020,9 @@ class _LoginScreenState extends State<LoginScreen> {
                               ),
                             ),
                     ),
+                    // 高级设置折叠面板
+                    _buildAdvancedSettingsToggle(),
+                    if (_showAdvancedSettings) _buildAdvancedSettingsPanel(),
                   ],
                 ),
         ),
@@ -1072,6 +1290,9 @@ class _LoginScreenState extends State<LoginScreen> {
                                 ),
                               ),
                       ),
+                      // 高级设置折叠面板
+                      _buildAdvancedSettingsToggle(),
+                      if (_showAdvancedSettings) _buildAdvancedSettingsPanel(),
                     ],
                   ),
           ),
diff --git a/lib/screens/player_screen.dart b/lib/screens/player_screen.dart
index c0e45455..15f4fd05 100644
--- a/lib/screens/player_screen.dart
+++ b/lib/screens/player_screen.dart
@@ -545,7 +545,7 @@ class _PlayerScreenState extends State<PlayerScreen>
       // 异步保存播放记录（不等待结果）
       PageCacheService().savePlayRecord(playRecord, context).then((_) {
         debugPrint(
-            '保存播放进度 [场景: $scene]: source: $currentSourceSnapshot, id: $currentIDSnapshot, 第${currentEpisodeIndexSnapshot + 1}集, 时间: ${playTime}秒');
+            '保存播放进度 [场景: $scene]: source: $currentSourceSnapshot, id: $currentIDSnapshot, 第${currentEpisodeIndexSnapshot + 1}集, 时间: $playTime秒');
       }).catchError((e) {
         debugPrint('保存播放进度失败 [场景: $scene]: $e');
       });
@@ -1165,7 +1165,7 @@ class _PlayerScreenState extends State<PlayerScreen>
     // 等待下一帧，确保 MobileVideoPlayerWidget 已经重新创建
     WidgetsBinding.instance.addPostFrameCallback((_) {
       if (mounted && currentDetail != null) {
-        debugPrint('恢复播放: 第${resumeEpisodeIndex + 1}集, ${resumeSeconds}秒');
+        debugPrint('恢复播放: 第${resumeEpisodeIndex + 1}集, $resumeSeconds秒');
         // 调用 startPlay 重新初始化播放器
         startPlay(resumeEpisodeIndex, resumeSeconds);
       }
@@ -1435,12 +1435,12 @@ class _PlayerScreenState extends State<PlayerScreen>
     return LayoutBuilder(
       builder: (context, constraints) {
         final double screenWidth = constraints.maxWidth;
-        final double padding = 16.0;
-        final double spacing = 12.0;
+        const double padding = 16.0;
+        const double spacing = 12.0;
         final crossAxisCount = _isTablet ? 6 : 3;
         final double availableWidth =
             screenWidth - (padding * 2) - (spacing * (crossAxisCount - 1));
-        final double minItemWidth = 80.0;
+        const double minItemWidth = 80.0;
         final double calculatedItemWidth = availableWidth / crossAxisCount;
         final double itemWidth = math.max(calculatedItemWidth, minItemWidth);
         final double itemHeight = itemWidth * 2.0;
@@ -1639,7 +1639,7 @@ class _PlayerScreenState extends State<PlayerScreen>
           builder: (context, constraints) {
             // 计算按钮宽度：根据设备类型调整
             final screenWidth = constraints.maxWidth;
-            final horizontalPadding = 32.0; // 左右各16
+            const horizontalPadding = 32.0; // 左右各16
             final availableWidth = screenWidth - horizontalPadding;
             final cardsPerView = _isTablet ? 6.2 : 3.2;
             final buttonWidth = (availableWidth / cardsPerView) - 6; // 减去右边距6
@@ -1800,7 +1800,7 @@ class _PlayerScreenState extends State<PlayerScreen>
       builder: (context) {
         return StatefulBuilder(
           builder: (BuildContext context, StateSetter setState) {
-            return Container(
+            return SizedBox(
               height: panelHeight,
               width: double.infinity,
               child: PlayerEpisodesPanel(
@@ -1901,7 +1901,7 @@ class _PlayerScreenState extends State<PlayerScreen>
       builder: (context) {
         return StatefulBuilder(
           builder: (BuildContext context, StateSetter setState) {
-            return Container(
+            return SizedBox(
               height: panelHeight,
               width: double.infinity,
               child: PlayerDetailsPanel(
@@ -2038,7 +2038,7 @@ class _PlayerScreenState extends State<PlayerScreen>
       builder: (context, constraints) {
         // 计算卡片宽度：根据设备类型调整
         final screenWidth = constraints.maxWidth;
-        final horizontalPadding = 32.0; // 左右各16
+        const horizontalPadding = 32.0; // 左右各16
         final availableWidth = screenWidth - horizontalPadding;
         final cardsPerView = _isTablet ? 6.2 : 3.2;
         final cardWidth = (availableWidth / cardsPerView) - 6; // 减去右边距6
@@ -2168,7 +2168,7 @@ class _PlayerScreenState extends State<PlayerScreen>
       builder: (context) {
         return StatefulBuilder(
           builder: (BuildContext context, StateSetter setState) {
-            return Container(
+            return SizedBox(
               height: panelHeight,
               width: double.infinity,
               child: PlayerSourcesPanel(
@@ -2619,10 +2619,12 @@ class _PlayerScreenState extends State<PlayerScreen>
           ),
           child: Column(
             children: [
-              // Windows 自定义标题栏（播放页使用纯黑背景）
+              // Windows 自定义标题栏（播放页跟随主题）
               if (Platform.isWindows)
-                const WindowsTitleBar(
-                  customBackgroundColor: Color(0xFF000000),
+                WindowsTitleBar(
+                  customBackgroundColor: isDarkMode
+                      ? const Color(0xFF121212)
+                      : const Color(0xFFf5f5f5),
                 ),
               // 主要内容
               Expanded(
diff --git a/lib/screens/search_screen.dart b/lib/screens/search_screen.dart
index 1fffbebb..aa45f50b 100644
--- a/lib/screens/search_screen.dart
+++ b/lib/screens/search_screen.dart
@@ -38,7 +38,7 @@ class _SearchScreenState extends State<SearchScreen>
   final ScrollController _scrollController = ScrollController();
   String _searchQuery = '';
   List<String> _searchHistory = [];
-  List<SearchResult> _searchResults = [];
+  final List<SearchResult> _searchResults = [];
   bool _hasSearched = false;
   bool _hasReceivedStart = false; // 是否已收到start消息
   String? _searchError;
diff --git a/lib/services/api_service.dart b/lib/services/api_service.dart
index 5b0eddc7..02c16339 100644
--- a/lib/services/api_service.dart
+++ b/lib/services/api_service.dart
@@ -73,6 +73,30 @@ class ApiService {
     return '$cleanBaseUrl$cleanEndpoint';
   }
 
+  /// 添加浏览器特征头
+  static Future<void> _addBrowserHeaders(Map<String, String> headers) async {
+    final ua = await UserDataService.getCustomUserAgent();
+    headers['User-Agent'] = ua;
+
+    final enabled = await UserDataService.getEnableBrowserHeaders();
+    if (enabled) {
+      headers['Accept-Language'] = 'zh-CN,zh;q=0.9,en;q=0.8';
+      headers['Accept-Encoding'] = 'gzip, deflate, br';
+      headers['Sec-Fetch-Site'] = 'same-origin';
+      headers['Sec-Fetch-Mode'] = 'cors';
+      headers['Sec-Fetch-Dest'] = 'empty';
+      headers['Sec-Ch-Ua'] =
+          '"Chromium";v="124", "Google Chrome";v="124", "Not-A.Brand";v="99"';
+      headers['Sec-Ch-Ua-Mobile'] = '?0';
+      headers['Sec-Ch-Ua-Platform'] = '"Windows"';
+    }
+
+    final customHeader = await UserDataService.getCustomHeader();
+    if (customHeader.isNotEmpty) {
+      headers.addAll(customHeader);
+    }
+  }
+
   /// 构建请求头
   static Future<Map<String, String>> _buildHeaders({
     Map<String, String>? additionalHeaders,
@@ -83,6 +107,9 @@ class ApiService {
       'Accept': 'application/json',
     };
 
+    // 添加浏览器特征头
+    await _addBrowserHeaders(headers);
+
     // 添加认证cookies
     if (includeAuth) {
       final cookies = await _getCookies();
@@ -574,13 +601,16 @@ class ApiService {
       }
       String loginUrl = '$baseUrl/api/login';
 
+      final loginHeaders = <String, String>{
+        'Content-Type': 'application/json',
+      };
+      await _addBrowserHeaders(loginHeaders);
+
       // 发送登录请求
       final response = await http
           .post(
             Uri.parse(loginUrl),
-            headers: {
-              'Content-Type': 'application/json',
-            },
+            headers: loginHeaders,
             body: json.encode({
               'username': username,
               'password': password,
@@ -802,17 +832,26 @@ class ApiService {
     }
   }
 
-  /// 解析 Set-Cookie 头部
+  /// 解析 Set-Cookie 头部，提取所有 Cookie 的 name=value
   static String _parseCookies(http.Response response) {
-    List<String> cookies = [];
-
-    // 获取所有 Set-Cookie 头部
-    final setCookieHeaders = response.headers['set-cookie'];
-    if (setCookieHeaders != null) {
-      // HTTP 头部通常是 String 类型
-      final cookieParts = setCookieHeaders.split(';');
-      if (cookieParts.isNotEmpty) {
-        cookies.add(cookieParts[0].trim());
+    final allCookies = response.headers['set-cookie'];
+    if (allCookies == null || allCookies.isEmpty) return '';
+
+    // 按 \n（Dart http 包多值拼接方式）或 ","（HTTP 标准）切分多个 cookie
+    final lines = allCookies
+        .split('\n')
+        .expand((line) => line.split(','))
+        .where((s) => s.trim().isNotEmpty)
+        .toList();
+
+    final cookies = <String>[];
+    for (final line in lines) {
+      final semicolonIdx = line.indexOf(';');
+      final nameValue = semicolonIdx > 0
+          ? line.substring(0, semicolonIdx).trim()
+          : line.trim();
+      if (nameValue.contains('=')) {
+        cookies.add(nameValue);
       }
     }
 
diff --git a/lib/services/douban_service.dart b/lib/services/douban_service.dart
index a69b889d..22597550 100644
--- a/lib/services/douban_service.dart
+++ b/lib/services/douban_service.dart
@@ -203,9 +203,9 @@ class DoubanService {
       // 为了保持与现有代码的兼容性，将时长转换为字符串
       String? duration;
       if (episodeLength != null) {
-        duration = '${episodeLength}分钟';
+        duration = '$episodeLength分钟';
       } else if (movieDuration != null) {
-        duration = '${movieDuration}分钟';
+        duration = '$movieDuration分钟';
       }
 
       // 提取剧情简介 - 两个正则都匹配，选择内容更长的
diff --git a/lib/services/local_search_cache_service.dart b/lib/services/local_search_cache_service.dart
index 66f0af1e..e7b86d3b 100644
--- a/lib/services/local_search_cache_service.dart
+++ b/lib/services/local_search_cache_service.dart
@@ -141,7 +141,7 @@ class LocalSearchCacheService {
     if (_cleanupTimer != null) return; // 避免重复启动
 
     _cleanupTimer = Timer.periodic(
-      Duration(milliseconds: _cacheCleanupIntervalMs),
+      const Duration(milliseconds: _cacheCleanupIntervalMs),
       (_) {
         _performCacheCleanup();
       },
diff --git a/lib/services/page_cache_service.dart b/lib/services/page_cache_service.dart
index 1a673edc..8fd7f75b 100644
--- a/lib/services/page_cache_service.dart
+++ b/lib/services/page_cache_service.dart
@@ -554,7 +554,7 @@ class PageCacheService
         final existingItem = cachedData[existingIndex];
         final updatedHistory = [
           existingItem,
-          ...cachedData.where((item) => item != query).toList()
+          ...cachedData.where((item) => item != query)
         ];
         setCache(cacheKey, updatedHistory);
       }
diff --git a/lib/services/sse_search_service.dart b/lib/services/sse_search_service.dart
index 8dac40b3..c2a4931a 100644
--- a/lib/services/sse_search_service.dart
+++ b/lib/services/sse_search_service.dart
@@ -270,7 +270,7 @@ class SSESearchService {
     _buffer = '';
 
     // 使用流式 UTF-8 解码器，自动处理跨 chunk 的多字节字符
-    final utf8Decoder = const Utf8Decoder(allowMalformed: false);
+    const utf8Decoder = Utf8Decoder(allowMalformed: false);
 
     // 流式处理 SSE 数据
     await for (final chunk in response.stream.transform(utf8Decoder)) {
diff --git a/lib/services/user_data_service.dart b/lib/services/user_data_service.dart
index 7e89e160..b93695e4 100644
--- a/lib/services/user_data_service.dart
+++ b/lib/services/user_data_service.dart
@@ -11,6 +11,10 @@ class UserDataService {
   static const String _preferSpeedTestKey = 'prefer_speed_test';
   static const String _localSearchKey = 'local_search';
   static const String _isLocalModeKey = 'is_local_mode';
+  static const String _customUserAgentKey = 'custom_user_agent';
+  static const String _enableBrowserHeadersKey = 'enable_browser_headers';
+  static const String _customHeaderNameKey = 'custom_header_name';
+  static const String _customHeaderValueKey = 'custom_header_value';
   
   // 内存缓存
   static bool? _isLocalModeCache;
@@ -257,4 +261,45 @@ class UserDataService {
   static bool getIsLocalModeSync() {
     return _isLocalModeCache ?? false;
   }
+
+  static const String _defaultUserAgent =
+      'Mozilla/5.0 (Windows NT 10.0; Win64; x64) '
+      'AppleWebKit/537.36 (KHTML, like Gecko) '
+      'Chrome/124.0.0.0 Safari/537.36';
+
+  static Future<void> saveCustomUserAgent(String ua) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(_customUserAgentKey, ua);
+  }
+
+  static Future<String> getCustomUserAgent() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getString(_customUserAgentKey) ?? _defaultUserAgent;
+  }
+
+  static Future<void> saveEnableBrowserHeaders(bool enabled) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool(_enableBrowserHeadersKey, enabled);
+  }
+
+  static Future<bool> getEnableBrowserHeaders() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getBool(_enableBrowserHeadersKey) ?? false;
+  }
+
+  static Future<void> saveCustomHeader(String name, String value) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(_customHeaderNameKey, name);
+    await prefs.setString(_customHeaderValueKey, value);
+  }
+
+  static Future<Map<String, String>> getCustomHeader() async {
+    final prefs = await SharedPreferences.getInstance();
+    final name = prefs.getString(_customHeaderNameKey) ?? '';
+    final value = prefs.getString(_customHeaderValueKey) ?? '';
+    if (name.isNotEmpty && value.isNotEmpty) {
+      return {name: value};
+    }
+    return {};
+  }
 }
diff --git a/lib/services/version_service.dart b/lib/services/version_service.dart
index a9415bcc..63f79835 100644
--- a/lib/services/version_service.dart
+++ b/lib/services/version_service.dart
@@ -81,7 +81,7 @@ class VersionService {
     // 检查上次检查时间（每天最多提示一次）
     final lastCheck = prefs.getInt(_lastCheckKey) ?? 0;
     final now = DateTime.now().millisecondsSinceEpoch;
-    final dayInMs = 24 * 60 * 60 * 1000;
+    const dayInMs = 24 * 60 * 60 * 1000;
     
     if (now - lastCheck < dayInMs) {
       return false;
diff --git a/lib/widgets/continue_watching_section.dart b/lib/widgets/continue_watching_section.dart
index a9f1c7fc..d89f082d 100644
--- a/lib/widgets/continue_watching_section.dart
+++ b/lib/widgets/continue_watching_section.dart
@@ -3,7 +3,6 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../models/play_record.dart';
 import '../models/video_info.dart';
-import '../services/api_service.dart';
 import '../services/page_cache_service.dart';
 import '../services/theme_service.dart';
 import '../utils/device_utils.dart';
diff --git a/lib/widgets/dlna_player_controls.dart b/lib/widgets/dlna_player_controls.dart
index ffc1c35e..b15a182a 100644
--- a/lib/widgets/dlna_player_controls.dart
+++ b/lib/widgets/dlna_player_controls.dart
@@ -304,16 +304,16 @@ class _DLNAPlayerControlsState extends State<DLNAPlayerControls> {
             ),
           ),
           // 中央加载指示器
-          Center(
+          const Center(
             child: Column(
               mainAxisSize: MainAxisSize.min,
               children: [
-                const CircularProgressIndicator(
+                CircularProgressIndicator(
                   color: Colors.white,
                   strokeWidth: 3,
                 ),
-                const SizedBox(height: 16),
-                const Text(
+                SizedBox(height: 16),
+                Text(
                   '视频加载中...',
                   style: TextStyle(
                     color: Colors.white,
diff --git a/lib/widgets/favorites_grid.dart b/lib/widgets/favorites_grid.dart
index 419326a6..0c31772c 100644
--- a/lib/widgets/favorites_grid.dart
+++ b/lib/widgets/favorites_grid.dart
@@ -349,10 +349,10 @@ class _FavoritesGridState extends State<FavoritesGrid>
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Icon(
+          const Icon(
             Icons.error_outline,
             size: 80,
-            color: const Color(0xFFbdc3c7),
+            color: Color(0xFFbdc3c7),
           ),
           const SizedBox(height: 24),
           Text(
diff --git a/lib/widgets/mobile_player_controls.dart b/lib/widgets/mobile_player_controls.dart
index a5bd2fb6..eee0ac8b 100644
--- a/lib/widgets/mobile_player_controls.dart
+++ b/lib/widgets/mobile_player_controls.dart
@@ -244,8 +244,9 @@ class _MobilePlayerControlsState extends State<MobilePlayerControls> {
   }
 
   void _onSwipeUpdate(DragUpdateDetails details) {
-    if (_isLocked || !_isSeekingViaSwipe || widget.live || _screenSize == null)
+    if (_isLocked || !_isSeekingViaSwipe || widget.live || _screenSize == null) {
       return;
+    }
     final screenWidth = _screenSize!.width;
     final swipeDistance = details.globalPosition.dx - _swipeStartX;
     final swipeRatio = swipeDistance / (screenWidth * 0.5);
diff --git a/lib/widgets/player_details_panel.dart b/lib/widgets/player_details_panel.dart
index f0408d39..261cc364 100644
--- a/lib/widgets/player_details_panel.dart
+++ b/lib/widgets/player_details_panel.dart
@@ -168,7 +168,7 @@ class PlayerDetailsPanel extends StatelessWidget {
                           ],
                           if (totalEpisodes != null && totalEpisodes > 1) ...[
                             Text(
-                              '全${totalEpisodes}集',
+                              '全$totalEpisodes集',
                               style: theme.textTheme.bodyMedium?.copyWith(
                                 color: isDarkMode
                                     ? Colors.grey[400]
@@ -364,7 +364,7 @@ class PlayerDetailsPanel extends StatelessWidget {
                           const SizedBox(height: 4),
                           if (totalEpisodes > 1)
                             Text(
-                              '全${totalEpisodes}集',
+                              '全$totalEpisodes集',
                               style: theme.textTheme.bodyMedium?.copyWith(
                                 color: isDarkMode
                                     ? Colors.grey[400]
diff --git a/lib/widgets/search_result_agg_grid.dart b/lib/widgets/search_result_agg_grid.dart
index 5316176e..306d4828 100644
--- a/lib/widgets/search_result_agg_grid.dart
+++ b/lib/widgets/search_result_agg_grid.dart
@@ -158,10 +158,10 @@ class _SearchResultAggGridState extends State<SearchResultAggGrid>
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Icon(
+          const Icon(
             Icons.search_off,
             size: 80,
-            color: const Color(0xFFbdc3c7),
+            color: Color(0xFFbdc3c7),
           ),
           const SizedBox(height: 24),
           Text(
diff --git a/lib/widgets/user_menu.dart b/lib/widgets/user_menu.dart
index f2f6cb03..f8e3d582 100644
--- a/lib/widgets/user_menu.dart
+++ b/lib/widgets/user_menu.dart
@@ -850,10 +850,10 @@ class _UserMenuState extends State<UserMenu> {
                           ),
                           child: Row(
                             children: [
-                              Icon(
+                              const Icon(
                                 LucideIcons.trash2,
                                 size: 20,
-                                color: const Color(0xFFf59e0b),
+                                color: Color(0xFFf59e0b),
                               ),
                               const SizedBox(width: 12),
                               Text(
@@ -890,10 +890,10 @@ class _UserMenuState extends State<UserMenu> {
                           ),
                           child: Row(
                             children: [
-                              Icon(
+                              const Icon(
                                 LucideIcons.download,
                                 size: 20,
-                                color: const Color(0xFF3b82f6),
+                                color: Color(0xFF3b82f6),
                               ),
                               const SizedBox(width: 12),
                               Text(
diff --git a/lib/widgets/video_menu_bottom_sheet.dart b/lib/widgets/video_menu_bottom_sheet.dart
index df956867..eaeb317d 100644
--- a/lib/widgets/video_menu_bottom_sheet.dart
+++ b/lib/widgets/video_menu_bottom_sheet.dart
@@ -68,7 +68,7 @@ class CollapsibleScrollPhysics extends ScrollPhysics {
   @override
   ScrollPhysics buildParent(ScrollPhysics? ancestor) {
     // 根据平台选择合适的父物理效果
-    final parentPhysics = isIOS ? BouncingScrollPhysics() : ClampingScrollPhysics();
+    final parentPhysics = isIOS ? const BouncingScrollPhysics() : const ClampingScrollPhysics();
     return parent?.applyTo(ancestor ?? parentPhysics) ?? parentPhysics;
   }
 }
@@ -803,7 +803,7 @@ class _VideoMenuBottomSheetState extends State<VideoMenuBottomSheet>
                                       // 关闭按钮
                                       GestureDetector(
                                         onTap: widget.onClose,
-                                        child: Container(
+                                        child: SizedBox(
                                           width: 32,
                                           height: 32,
                                           child: Icon(
@@ -938,10 +938,10 @@ class _VideoMenuBottomSheetState extends State<VideoMenuBottomSheet>
                   child: Row(
                     mainAxisSize: MainAxisSize.min,
                     children: [
-                      Icon(
+                      const Icon(
                         Icons.star,
                         size: 16,
-                        color: const Color(0xFFFFB800),
+                        color: Color(0xFFFFB800),
                       ),
                       const SizedBox(width: 4),
                       Text(
@@ -1102,10 +1102,10 @@ class _VideoMenuBottomSheetState extends State<VideoMenuBottomSheet>
                   child: Row(
                     mainAxisSize: MainAxisSize.min,
                     children: [
-                      Icon(
+                      const Icon(
                         Icons.star,
                         size: 16,
-                        color: const Color(0xFFE91E63),
+                        color: Color(0xFFE91E63),
                       ),
                       const SizedBox(width: 4),
                       Text(
diff --git a/lib/widgets/video_player_widget.dart b/lib/widgets/video_player_widget.dart
index 29e38375..fea486c1 100644
--- a/lib/widgets/video_player_widget.dart
+++ b/lib/widgets/video_player_widget.dart
@@ -168,7 +168,13 @@ class _VideoPlayerWidgetState extends State<VideoPlayerWidget>
     if (_playerDisposed) {
       return;
     }
-    _player = Player();
+    _player = Player(
+      configuration: PlayerConfiguration(
+        title: 'Selene',
+        bufferSize: 32 * 1024 * 1024,
+        logLevel: MPVLogLevel.error,
+      ),
+    );
     _videoController = VideoController(_player!);
     _setupPlayerListeners();
     if (_currentUrl != null) {
diff --git a/lib/widgets/windows_title_bar.dart b/lib/widgets/windows_title_bar.dart
index c1a31eb7..a672da66 100644
--- a/lib/widgets/windows_title_bar.dart
+++ b/lib/widgets/windows_title_bar.dart
@@ -170,7 +170,7 @@ class _WindowsButtonHoverState extends State<_WindowsButtonHover> {
           color: backgroundColor ?? Colors.transparent,
           child: Center(
             child: widget.isCloseButton && _isHovered
-                ? Icon(
+                ? const Icon(
                     Icons.close,
                     size: 16,
                     color: Colors.white,