diff --git a/lib/services/api/nexusphp_adapter.dart b/lib/services/api/nexusphp_adapter.dart
index 2924535..6386830 100644
--- a/lib/services/api/nexusphp_adapter.dart
+++ b/lib/services/api/nexusphp_adapter.dart
@@ -14,6 +14,7 @@ import 'nexusphp_helper.dart';
 class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
   late SiteConfig _siteConfig;
   late Dio _dio;
+  static final RegExp _whitespaceRegExp = RegExp(r'[\s\u200B-\u200D\uFEFF]');
   Map<String, String>? _discountMapping;
   Map<String, String>? _tagMapping;
   static final Logger _logger = Logger();
@@ -39,7 +40,9 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
     await _loadTagMapping();
     swDiscount.stop();
     if (kDebugMode) {
-      _logger.d('NexusPHPAdapter.init: 加载优惠映射耗时=${swDiscount.elapsedMilliseconds}ms');
+      _logger.d(
+        'NexusPHPAdapter.init: 加载优惠映射耗时=${swDiscount.elapsedMilliseconds}ms',
+      );
     }
 
     _dio = Dio(
@@ -75,7 +78,9 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
     );
     swInterceptors.stop();
     if (kDebugMode) {
-      _logger.d('NexusPHPAdapter.init: 配置Dio与拦截器耗时=${swInterceptors.elapsedMilliseconds}ms');
+      _logger.d(
+        'NexusPHPAdapter.init: 配置Dio与拦截器耗时=${swInterceptors.elapsedMilliseconds}ms',
+      );
     }
     swTotal.stop();
     if (kDebugMode) {
@@ -91,9 +96,7 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
         SiteType.nexusphp,
       );
       if (template?.discountMapping != null) {
-        _discountMapping = Map<String, String>.from(
-          template!.discountMapping,
-        );
+        _discountMapping = Map<String, String>.from(template!.discountMapping);
       }
       final specialMapping = await SiteConfigService.getDiscountMapping(
         _siteConfig.baseUrl,
@@ -283,8 +286,6 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
       }
     }
 
-
-
     final name = item['name'] as String;
     final smallDescr = item['small_descr'] as String? ?? '';
 
@@ -311,8 +312,6 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
       }
     }
 
-
-
     return TorrentItem(
       id: (item['id'] as int).toString(),
       name: name,
@@ -369,7 +368,11 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
   }
 
   @override
-  Future<TorrentCommentList> fetchComments(String id, {int pageNumber = 1, int pageSize = 20}) async {
+  Future<TorrentCommentList> fetchComments(
+    String id, {
+    int pageNumber = 1,
+    int pageSize = 20,
+  }) async {
     try {
       final response = await _dio.get(
         '/api/v1/comments',
@@ -506,9 +509,7 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
   Future<List<SearchCategoryConfig>> getSearchCategories() async {
     // 通过baseUrl匹配预设配置
     final defaultCategories =
-        await SiteConfigService.getDefaultSearchCategories(
-          _siteConfig.baseUrl,
-        );
+        await SiteConfigService.getDefaultSearchCategories(_siteConfig.baseUrl);
 
     // 如果获取到默认分类配置，则直接返回
     if (defaultCategories.isNotEmpty) {
@@ -536,13 +537,13 @@ class NexusPHPAdapter with NexusPHPHelper implements SiteAdapter {
           for (final section in sectionsData) {
             final sectionName = section['name'] as String;
             final sectionDisplayName = (section['display_name'] as String)
-                .replaceAll(RegExp(r'[\s\u200B-\u200D\uFEFF]'), '');
+                .replaceAll(_whitespaceRegExp, '');
             final categoriesData = section['categories'] as List;
 
             for (final category in categoriesData) {
               final categoryId = category['id'];
               final categoryName = (category['name'] as String).replaceAll(
-                RegExp(r'[\s\u200B-\u200D\uFEFF]'),
+                _whitespaceRegExp,
                 '',
               );
               categories.add(
diff --git a/lib/services/api/nexusphp_web_adapter.dart b/lib/services/api/nexusphp_web_adapter.dart
index de866d1..34ca1c2 100644
--- a/lib/services/api/nexusphp_web_adapter.dart
+++ b/lib/services/api/nexusphp_web_adapter.dart
@@ -41,6 +41,12 @@ class ParseSearchParams {
   });
 }
 
+final RegExp _sizeRegExp = RegExp(r'([\d.]+)\s*(\w+)');
+final RegExp _relativeUrlRegExp = RegExp(
+  r'(src|href)="((?!https?://|//|data:|javascript:|#)[^"]+)"',
+  caseSensitive: false,
+);
+
 /// 解析结果对象
 class ParsedTorrentResult {
   final List<TorrentItem> items;
@@ -1147,7 +1153,7 @@ class NexusPHPWebAdapter extends SiteAdapter
           // 解析文件大小为字节数
           int sizeInBytes = 0;
           if (sizeText.isNotEmpty) {
-            final sizeMatch = RegExp(r'([\d.]+)\s*(\w+)').firstMatch(sizeText);
+            final sizeMatch = _sizeRegExp.firstMatch(sizeText);
             if (sizeMatch != null) {
               final sizeValue = double.tryParse(sizeMatch.group(1) ?? '0') ?? 0;
               final unit = sizeMatch.group(2)?.toUpperCase() ?? 'B';
@@ -1303,10 +1309,7 @@ class NexusPHPWebAdapter extends SiteAdapter
           } else {
             // HTML 模式：处理相对URL
             extractedContent = extractedContent.replaceAllMapped(
-              RegExp(
-                r'(src|href)="((?!https?://|//|data:|javascript:|#)[^"]+)"',
-                caseSensitive: false,
-              ),
+              _relativeUrlRegExp,
               (match) {
                 final attr = match.group(1);
                 final path = match.group(2)!;
diff --git a/lib/services/downloader/qbittorrent_client.dart b/lib/services/downloader/qbittorrent_client.dart
index ceaffb4..bec1da4 100644
--- a/lib/services/downloader/qbittorrent_client.dart
+++ b/lib/services/downloader/qbittorrent_client.dart
@@ -11,6 +11,9 @@ import 'downloader_config.dart';
 import 'downloader_models.dart';
 import 'torrent_file_downloader_mixin.dart';
 
+final RegExp _httpRegExp = RegExp(r'https?://');
+final RegExp _sidRegExp = RegExp(r'SID=([^;]+)');
+
 /// qBittorrent下载器客户端实现
 class QbittorrentClient
     with TorrentFileDownloaderMixin
@@ -65,7 +68,7 @@ class QbittorrentClient
   String _buildBase(QbittorrentConfig c) {
     var urlStr = c.host.trim();
     // 补全协议
-    if (!urlStr.startsWith(RegExp(r'https?://'))) {
+    if (!urlStr.startsWith(_httpRegExp)) {
       urlStr = 'http://$urlStr';
     }
 
@@ -223,7 +226,7 @@ class QbittorrentClient
         // 从响应头中提取会话ID
         final cookies = response.headers['set-cookie'];
         if (cookies != null && cookies.isNotEmpty) {
-          final sidMatch = RegExp(r'SID=([^;]+)').firstMatch(cookies.first);
+          final sidMatch = _sidRegExp.firstMatch(cookies.first);
           if (sidMatch != null) {
             _sessionId = sidMatch.group(1);
             return;
@@ -308,7 +311,6 @@ class QbittorrentClient
       forceRelay = true;
     }
 
-
     final useRelay = config.useLocalRelay || forceRelay;
     if (!useRelay) {
       body['urls'] = url;
@@ -339,8 +341,6 @@ class QbittorrentClient
     await _request('POST', '/torrents/add', body: body);
   }
 
-
-
   /// 根据版本获取暂停任务的 API 路径
   String _getPauseApiPath(String? version) {
     if (version == null) return '/torrents/pause'; // 默认使用 4.x 的路径
diff --git a/lib/services/downloader/rutorrent_client.dart b/lib/services/downloader/rutorrent_client.dart
index d065d58..27a5b0c 100644
--- a/lib/services/downloader/rutorrent_client.dart
+++ b/lib/services/downloader/rutorrent_client.dart
@@ -12,6 +12,8 @@ import 'downloader_config.dart';
 import 'downloader_models.dart';
 import 'torrent_file_downloader_mixin.dart';
 
+final RegExp _httpRegExp = RegExp(r'https?://');
+
 /// ruTorrent下载器客户端实现
 class RuTorrentClient
     with TorrentFileDownloaderMixin
@@ -66,7 +68,7 @@ class RuTorrentClient
   String _buildBase(RuTorrentConfig c) {
     var urlStr = c.host.trim();
     // 补全协议
-    if (!urlStr.startsWith(RegExp(r'https?://'))) {
+    if (!urlStr.startsWith(_httpRegExp)) {
       urlStr = 'http://$urlStr';
     }
 
@@ -291,8 +293,6 @@ class RuTorrentClient
     return FormatUtil.parseInt(val) ?? 0;
   }
 
-
-
   @override
   Future<void> testConnection() async {
     try {
diff --git a/lib/services/downloader/transmission_client.dart b/lib/services/downloader/transmission_client.dart
index bc32e35..20d6a3f 100644
--- a/lib/services/downloader/transmission_client.dart
+++ b/lib/services/downloader/transmission_client.dart
@@ -10,6 +10,8 @@ import 'downloader_config.dart';
 import 'downloader_models.dart';
 import 'torrent_file_downloader_mixin.dart';
 
+final RegExp _httpRegExp = RegExp(r'https?://');
+
 /// Transmission下载器客户端实现
 class TransmissionClient
     with TorrentFileDownloaderMixin
@@ -32,17 +34,19 @@ class TransmissionClient
     required this.password,
     Function(TransmissionConfig)? onConfigUpdated,
   }) : _onConfigUpdated = onConfigUpdated {
-    _dio = Dio(BaseOptions(
-      connectTimeout: const Duration(seconds: 10),
-      receiveTimeout: const Duration(seconds: 30),
-      headers: {
+    _dio = Dio(
+      BaseOptions(
+        connectTimeout: const Duration(seconds: 10),
+        receiveTimeout: const Duration(seconds: 30),
+        headers: {
           'User-Agent':
               'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36',
-              'Content-Type': 'application/json',
-      },
+          'Content-Type': 'application/json',
+        },
         followRedirects: true,
         maxRedirects: 5,
-    ));
+      ),
+    );
   }
 
   /// 获取基础URL
@@ -52,7 +56,7 @@ class TransmissionClient
   String _buildBase(TransmissionConfig c) {
     var urlStr = c.host.trim();
     // 补全协议
-    if (!urlStr.startsWith(RegExp(r'https?://'))) {
+    if (!urlStr.startsWith(_httpRegExp)) {
       urlStr = 'http://$urlStr';
     }
 
@@ -85,18 +89,15 @@ class TransmissionClient
   }) async {
     final url = '$_baseUrl$_rpcPath';
 
-    final requestBody = {
-      'method': method,
-      'arguments': ?arguments,
-    };
+    final requestBody = {'method': method, 'arguments': ?arguments};
 
-    final requestHeaders = <String, String>{
-      'Content-Type': 'application/json',
-    };
+    final requestHeaders = <String, String>{'Content-Type': 'application/json'};
 
     // 添加认证信息
     if (config.username.isNotEmpty) {
-      final credentials = base64Encode(utf8.encode('${config.username}:$password'));
+      final credentials = base64Encode(
+        utf8.encode('${config.username}:$password'),
+      );
       requestHeaders['Authorization'] = 'Basic $credentials';
     }
 
@@ -129,7 +130,9 @@ class TransmissionClient
       // 检查是否需要会话ID
       if (e.response?.statusCode == 409) {
         // 从响应头中提取会话ID
-        final sessionId = e.response?.headers.value('X-Transmission-Session-Id');
+        final sessionId = e.response?.headers.value(
+          'X-Transmission-Session-Id',
+        );
         if (sessionId != null) {
           _sessionId = sessionId;
           // 重试请求
@@ -142,15 +145,15 @@ class TransmissionClient
       }
 
       if (e.response?.statusCode != null && e.response!.statusCode! >= 400) {
-        throw HttpException('HTTP ${e.response!.statusCode}: ${e.response!.data}');
+        throw HttpException(
+          'HTTP ${e.response!.statusCode}: ${e.response!.data}',
+        );
       }
 
       throw Exception('Request failed: ${e.message}');
     }
   }
 
-
-
   @override
   Future<void> testConnection() async {
     try {
@@ -283,13 +286,16 @@ class TransmissionClient
   }
 
   @override
-  Future<void> deleteTasks(List<String> hashes, {bool deleteFiles = false}) async {
+  Future<void> deleteTasks(
+    List<String> hashes, {
+    bool deleteFiles = false,
+  }) async {
     final ids = await _hashesToIds(hashes);
     if (ids.isNotEmpty) {
-      await _rpcRequest('torrent-remove', arguments: {
-        'ids': ids,
-        'delete-local-data': deleteFiles,
-      });
+      await _rpcRequest(
+        'torrent-remove',
+        arguments: {'ids': ids, 'delete-local-data': deleteFiles},
+      );
     }
   }
 
@@ -303,9 +309,12 @@ class TransmissionClient
   @override
   Future<List<String>> getTags() async {
     // 获取所有种子的标签
-    final response = await _rpcRequest('torrent-get', arguments: {
-      'fields': ['labels'],
-    });
+    final response = await _rpcRequest(
+      'torrent-get',
+      arguments: {
+        'fields': ['labels'],
+      },
+    );
 
     final List<dynamic> torrents = response['torrents'] as List<dynamic>? ?? [];
     final Set<String> allLabels = {};
@@ -346,9 +355,12 @@ class TransmissionClient
   @override
   Future<List<String>> getPaths() async {
     // 获取所有种子的下载路径
-    final response = await _rpcRequest('torrent-get', arguments: {
-      'fields': ['downloadDir'],
-    });
+    final response = await _rpcRequest(
+      'torrent-get',
+      arguments: {
+        'fields': ['downloadDir'],
+      },
+    );
 
     final List<dynamic> torrents = response['torrents'] as List<dynamic>? ?? [];
     final Set<String> allPaths = {};
@@ -386,9 +398,12 @@ class TransmissionClient
   Future<List<int>> _hashesToIds(List<String> hashes) async {
     if (hashes.isEmpty) return [];
 
-    final response = await _rpcRequest('torrent-get', arguments: {
-      'fields': ['id', 'hashString'],
-    });
+    final response = await _rpcRequest(
+      'torrent-get',
+      arguments: {
+        'fields': ['id', 'hashString'],
+      },
+    );
 
     final List<dynamic> torrents = response['torrents'] as List<dynamic>? ?? [];
     final List<int> ids = [];
@@ -457,7 +472,9 @@ class TransmissionClient
       addedOn: torrent['addedDate'] ?? 0,
       amountLeft: leftUntilDone,
       ratio: (torrent['uploadRatio'] as num? ?? 0).toDouble(),
-      timeActive: (torrent['activityDate'] as int? ?? 0) - (torrent['addedDate'] as int? ?? 0),
+      timeActive:
+          (torrent['activityDate'] as int? ?? 0) -
+          (torrent['addedDate'] as int? ?? 0),
       uploaded: torrent['uploadedEver'] ?? 0,
     );
   }
@@ -486,4 +503,4 @@ class TransmissionClient
   void dispose() {
     _dio.close();
   }
-}
\ No newline at end of file
+}
diff --git a/lib/utils/format.dart b/lib/utils/format.dart
index a3de6a6..091b209 100644
--- a/lib/utils/format.dart
+++ b/lib/utils/format.dart
@@ -46,6 +46,7 @@ class FormatUtil {
   }
 
   static final RegExp _nonDigitRegExp = RegExp(r'\D');
+  static final RegExp _timezoneRegExp = RegExp(r'Z|[+-]\d{2}:?\d{2}$');
 
   /// 解析字符串为整数
   /// 先判断有没有小数点，有的话则截取整数部分，然后移除掉所有的非数字字符，最后返回int.tryParse的结果
@@ -193,7 +194,7 @@ class Formatters {
           normalizedDate = normalizedDate.replaceRange(10, 11, 'T');
         }
 
-        if (normalizedDate.contains(RegExp(r'Z|[+-]\d{2}:?\d{2}$'))) {
+        if (normalizedDate.contains(FormatUtil._timezoneRegExp)) {
           return DateTime.parse(normalizedDate).toLocal();
         } else {
           return DateTime.parse("$normalizedDate$actualZone").toLocal();
diff --git a/lib/widgets/web_login_widget.dart b/lib/widgets/web_login_widget.dart
index a155474..808d717 100644
--- a/lib/widgets/web_login_widget.dart
+++ b/lib/widgets/web_login_widget.dart
@@ -4,6 +4,11 @@ import 'package:logger/logger.dart';
 import 'package:flutter_inappwebview/flutter_inappwebview.dart';
 import 'package:pt_mate/utils/notification_helper.dart';
 
+final RegExp _titleRegExp = RegExp(
+  r'<title>(.*?)<\/title>',
+  caseSensitive: false,
+);
+
 class WebLoginWidget extends StatefulWidget {
   final String baseUrl;
   final String? loginPath; // 自定义登录页面路径，默认为 /login.php
@@ -77,10 +82,7 @@ class _WebLoginWidgetState extends State<WebLoginWidget> {
       if (html == null || html.isEmpty) return;
 
       // 检查页面标题
-      final titleMatch = RegExp(
-        r'<title>(.*?)<\/title>',
-        caseSensitive: false,
-      ).firstMatch(html);
+      final titleMatch = _titleRegExp.firstMatch(html);
       final title = titleMatch?.group(1) ?? "";
 
       // 如果标题包含登录字样，说明尚未成功
@@ -311,7 +313,11 @@ class _WebLoginWidgetState extends State<WebLoginWidget> {
         _logger.w('CookieManager未获取到cookie');
       }
       if (mounted) {
-                NotificationHelper.showInfo(context, '无法获取cookie，请检查登录状态', duration: const Duration(seconds: 3));
+        NotificationHelper.showInfo(
+          context,
+          '无法获取cookie，请检查登录状态',
+          duration: const Duration(seconds: 3),
+        );
       }
       return false;
     } catch (e) {
@@ -319,7 +325,7 @@ class _WebLoginWidgetState extends State<WebLoginWidget> {
         _logger.e('提取cookie时出错: $e');
       }
       if (mounted) {
-                NotificationHelper.showError(context, 'Cookie提取失败: $e');
+        NotificationHelper.showError(context, 'Cookie提取失败: $e');
       }
       return false;
     }
diff --git a/pubspec.lock b/pubspec.lock
index 507755d..2ed0eaf 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -69,10 +69,10 @@ packages:
     dependency: transitive
     description:
       name: characters
-      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.0"
+    version: "1.4.1"
   checked_yaml:
     dependency: transitive
     description:
@@ -649,18 +649,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
+      sha256: "12956d0ad8390bbcc63ca2e1469c0619946ccb52809807067a7020d57e647aa6"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.17"
+    version: "0.12.18"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.11.1"
+    version: "0.13.0"
   meta:
     dependency: transitive
     description:
@@ -1022,10 +1022,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
+      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.7"
+    version: "0.7.9"
   timezone:
     dependency: transitive
     description: