diff --git a/lib/app/app.dart b/lib/app/app.dart
index b0b3cdb..02c49df 100644
--- a/lib/app/app.dart
+++ b/lib/app/app.dart
@@ -4,6 +4,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
 
 import '../common/router/app_router.dart';
+import '../common/lifecycle/refresh_coordinator.dart';
 import '../common/theme/jinzhi_theme.dart';
 import '../common/theme/spacing.dart';
 import '../common/theme/theme_controller.dart';
@@ -13,6 +14,9 @@ class JinzhiApp extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
+    // Keep the app-wide foreground refresh coordinator alive. Features opt in
+    // by registering only while their screen is visible.
+    ref.watch(refreshCoordinatorProvider);
     final router = ref.watch(routerProvider);
     final mode = ref.watch(themeModeControllerProvider);
     // DM Sans 作主字体（拉丁/数字），中文走系统级联（iOS 苹方 / Android 厂商
diff --git a/lib/app/bootstrap.dart b/lib/app/bootstrap.dart
index cba7b64..bd028e1 100644
--- a/lib/app/bootstrap.dart
+++ b/lib/app/bootstrap.dart
@@ -4,12 +4,18 @@ import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter/widgets.dart';
 
 import '../common/services/device_header_service.dart';
+import '../common/storage/secure_identity_storage.dart';
 import '../common/storage/storage_service.dart';
+import '../common/widgets/easy_refresh_localization.dart';
 import 'app.dart';
 
 Future<Widget> bootstrap() async {
   WidgetsFlutterBinding.ensureInitialized();
+  configureEasyRefreshChineseLocalization();
   await StorageService.instance;
+  await SecureIdentityStorage(
+    StorageService.to.preferences,
+  ).restoreAccessToken();
   if (!kIsWeb) {
     if (Platform.isAndroid) {
       // Before consent this only initializes app version and channel. The
diff --git a/lib/common/lifecycle/refresh_coordinator.dart b/lib/common/lifecycle/refresh_coordinator.dart
new file mode 100644
index 0000000..52ae7eb
--- /dev/null
+++ b/lib/common/lifecycle/refresh_coordinator.dart
@@ -0,0 +1,84 @@
+import 'dart:async';
+
+import 'package:flutter/widgets.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+typedef RefreshCallback = FutureOr<void> Function();
+
+/// Coordinates safe refresh points without owning any feature data.
+///
+/// A screen registers its callback while it is visible. Registered callbacks
+/// run when the app returns to the foreground; callers can also request a
+/// manual refresh through the returned handle.
+class RefreshCoordinator with WidgetsBindingObserver {
+  RefreshCoordinator() {
+    WidgetsBinding.instance.addObserver(this);
+  }
+
+  final Set<_RefreshRegistration> _registrations = {};
+  AppLifecycleState _lifecycleState = AppLifecycleState.resumed;
+
+  bool get isForeground => _lifecycleState == AppLifecycleState.resumed;
+
+  RefreshRegistration register({
+    required RefreshCallback onRefresh,
+    bool active = true,
+  }) {
+    final registration = _RefreshRegistration(onRefresh, active);
+    _registrations.add(registration);
+    return RefreshRegistration._(this, registration);
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    _lifecycleState = state;
+    if (state == AppLifecycleState.resumed) refreshVisible();
+  }
+
+  void refreshVisible() {
+    for (final registration in _registrations) {
+      if (registration.active) unawaited(_run(registration));
+    }
+  }
+
+  Future<void> _run(_RefreshRegistration registration) async {
+    try {
+      await registration.onRefresh();
+    } catch (_) {
+      // Refresh failures belong to the owning feature's state/UI.
+    }
+  }
+
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    _registrations.clear();
+  }
+}
+
+class RefreshRegistration {
+  RefreshRegistration._(this._coordinator, this._registration);
+
+  final RefreshCoordinator _coordinator;
+  final _RefreshRegistration _registration;
+
+  bool get active => _registration.active;
+
+  set active(bool value) => _registration.active = value;
+
+  void refreshNow() => _coordinator._run(_registration);
+
+  void dispose() => _coordinator._registrations.remove(_registration);
+}
+
+class _RefreshRegistration {
+  _RefreshRegistration(this.onRefresh, this.active);
+
+  final RefreshCallback onRefresh;
+  bool active;
+}
+
+final refreshCoordinatorProvider = Provider<RefreshCoordinator>((ref) {
+  final coordinator = RefreshCoordinator();
+  ref.onDispose(coordinator.dispose);
+  return coordinator;
+});
diff --git a/lib/common/network/auth_interceptor.dart b/lib/common/network/auth_interceptor.dart
index b180754..e6a6352 100644
--- a/lib/common/network/auth_interceptor.dart
+++ b/lib/common/network/auth_interceptor.dart
@@ -2,8 +2,11 @@ import 'package:dio/dio.dart';
 
 import '../services/device_header_service.dart';
 import '../storage/secure_identity_storage.dart';
+import '../storage/storage_service.dart';
 
-final _defaultIdentityStorage = SecureIdentityStorage();
+final _defaultIdentityStorage = SecureIdentityStorage(
+  StorageService.to.preferences,
+);
 
 Future<void> saveJwt(String token) => _defaultIdentityStorage.saveJwt(token);
 Future<void> clearJwt() => _defaultIdentityStorage.clearJwt();
diff --git a/lib/common/router/app_router.dart b/lib/common/router/app_router.dart
index d9f927a..446104a 100644
--- a/lib/common/router/app_router.dart
+++ b/lib/common/router/app_router.dart
@@ -54,22 +54,43 @@ final routerProvider = Provider<GoRouter>((ref) {
       return null;
     },
     routes: [
-      ShellRoute(
-        builder: (context, state, child) =>
-            TabShell(location: state.matchedLocation, child: child),
-        routes: [
-          GoRoute(
-            path: AppRoutes.assets,
-            builder: (ctx, s) => const AssetsPage(),
+      StatefulShellRoute.indexedStack(
+        builder: (context, state, navigationShell) => TabShell(
+          location: state.matchedLocation,
+          navigationShell: navigationShell,
+        ),
+        branches: [
+          StatefulShellBranch(
+            routes: [
+              GoRoute(
+                path: AppRoutes.assets,
+                builder: (ctx, s) => const AssetsPage(),
+              ),
+            ],
           ),
-          GoRoute(
-            path: AppRoutes.market,
-            builder: (ctx, s) => const MarketPage(),
+          StatefulShellBranch(
+            routes: [
+              GoRoute(
+                path: AppRoutes.market,
+                builder: (ctx, s) => const MarketPage(),
+              ),
+            ],
           ),
-          GoRoute(path: AppRoutes.news, builder: (ctx, s) => const NewsPage()),
-          GoRoute(
-            path: AppRoutes.profile,
-            builder: (ctx, s) => const ProfilePage(),
+          StatefulShellBranch(
+            routes: [
+              GoRoute(
+                path: AppRoutes.news,
+                builder: (ctx, s) => const NewsPage(),
+              ),
+            ],
+          ),
+          StatefulShellBranch(
+            routes: [
+              GoRoute(
+                path: AppRoutes.profile,
+                builder: (ctx, s) => const ProfilePage(),
+              ),
+            ],
           ),
         ],
       ),
diff --git a/lib/common/router/tab_shell.dart b/lib/common/router/tab_shell.dart
index 8eb1f5c..520a0ba 100644
--- a/lib/common/router/tab_shell.dart
+++ b/lib/common/router/tab_shell.dart
@@ -8,9 +8,13 @@ import '../widgets/adaptive.dart';
 import 'app_router.dart';
 
 class TabShell extends StatefulWidget {
-  const TabShell({super.key, required this.child, required this.location});
+  const TabShell({
+    super.key,
+    required this.navigationShell,
+    required this.location,
+  });
 
-  final Widget child;
+  final StatefulNavigationShell navigationShell;
   final String location;
 
   @override
@@ -22,10 +26,7 @@ class _TabShellState extends State<TabShell> {
 
   bool _showCompactHeader = false;
 
-  static const _tabs = ['/assets', '/market', '/news', '/profile'];
-
-  int get _index =>
-      _tabs.indexWhere((t) => widget.location.startsWith(t)).clamp(0, 3);
+  int get _index => widget.navigationShell.currentIndex;
 
   @override
   void didUpdateWidget(covariant TabShell oldWidget) {
@@ -104,7 +105,7 @@ class _TabShellState extends State<TabShell> {
               color: cs.background,
               child: NotificationListener<ScrollNotification>(
                 onNotification: _handleScrollNotification,
-                child: Stack(children: [Positioned.fill(child: widget.child)]),
+                child: widget.navigationShell,
               ),
             ),
             bottomNavigationBar: SafeArea(
@@ -129,7 +130,7 @@ class _TabShellState extends State<TabShell> {
                           ),
                           child: Row(
                             children: [
-                              for (var i = 0; i < _tabs.length; i++)
+                              for (var i = 0; i < _labels.length; i++)
                                 Expanded(
                                   child: _TabButton(
                                     icon: i == _index
@@ -137,7 +138,11 @@ class _TabShellState extends State<TabShell> {
                                         : _outlineIcons[i],
                                     label: _labels[i],
                                     selected: i == _index,
-                                    onTap: () => context.go(_tabs[i]),
+                                    onTap: () =>
+                                        widget.navigationShell.goBranch(
+                                          i,
+                                          initialLocation: i == _index,
+                                        ),
                                   ),
                                 ),
                             ],
diff --git a/lib/common/storage/secure_identity_storage.dart b/lib/common/storage/secure_identity_storage.dart
index a14dd28..ccb98c8 100644
--- a/lib/common/storage/secure_identity_storage.dart
+++ b/lib/common/storage/secure_identity_storage.dart
@@ -1,21 +1,98 @@
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
-const _jwtKey = 'jwt_token';
+import 'storage_keys.dart';
+import 'storage_service.dart';
+
+abstract interface class SecureKeyValueStorage {
+  Future<String?> read(String key);
+  Future<void> write(String key, String value);
+  Future<void> delete(String key);
+}
+
+class FlutterSecureKeyValueStorage implements SecureKeyValueStorage {
+  const FlutterSecureKeyValueStorage();
+
+  static const _storage = FlutterSecureStorage();
+
+  @override
+  Future<String?> read(String key) => _storage.read(key: key);
+  @override
+  Future<void> write(String key, String value) =>
+      _storage.write(key: key, value: value);
+  @override
+  Future<void> delete(String key) => _storage.delete(key: key);
+}
 
 /// Sensitive identity values stay behind one injectable storage boundary.
+/// Legacy plaintext preferences are migrated only after a secure write works.
 class SecureIdentityStorage {
-  SecureIdentityStorage({FlutterSecureStorage? storage})
-    : _storage = storage ?? const FlutterSecureStorage();
+  SecureIdentityStorage(
+    this._preferences, {
+    SecureKeyValueStorage secureStorage = const FlutterSecureKeyValueStorage(),
+  }) : _storage = secureStorage;
 
-  final FlutterSecureStorage _storage;
+  static const _accessTokenKey = 'access_token';
+  static const _legacySecureJwtKey = 'jwt_token';
 
-  Future<void> saveJwt(String token) =>
-      _storage.write(key: _jwtKey, value: token);
-  Future<void> clearJwt() => _storage.delete(key: _jwtKey);
-  Future<String?> readJwt() => _storage.read(key: _jwtKey);
+  final SharedPreferences _preferences;
+  final SecureKeyValueStorage _storage;
+
+  Future<String?> restoreAccessToken() async {
+    final current = _normalized(await _storage.read(_accessTokenKey));
+    final legacyPreferences = _normalized(
+      _preferences.getString(storageLegacyAccessToken),
+    );
+    final legacySecure = current == null
+        ? _normalized(await _storage.read(_legacySecureJwtKey))
+        : null;
+    final token = current ?? legacyPreferences ?? legacySecure;
+    if (current == null && token != null) {
+      await _storage.write(_accessTokenKey, token);
+    }
+    await _storage.delete(_legacySecureJwtKey);
+    await _preferences.remove(storageLegacyAccessToken);
+    if (token == null) {
+      await _preferences.remove(storageAuthSessionActive);
+    } else {
+      await _preferences.setBool(storageAuthSessionActive, true);
+    }
+    return token;
+  }
+
+  Future<String?> readJwt() async {
+    final token = _normalized(await _storage.read(_accessTokenKey));
+    if (token == null || _preferences.containsKey(storageLegacyAccessToken)) {
+      return restoreAccessToken();
+    }
+    return token;
+  }
+
+  Future<void> saveJwt(String token) async {
+    final normalized = _normalized(token);
+    if (normalized == null) {
+      throw ArgumentError.value(token, 'token', 'must not be empty');
+    }
+    await _storage.write(_accessTokenKey, normalized);
+    await _storage.delete(_legacySecureJwtKey);
+    await _preferences.remove(storageLegacyAccessToken);
+    await _preferences.setBool(storageAuthSessionActive, true);
+  }
+
+  Future<void> clearJwt() async {
+    await _storage.delete(_accessTokenKey);
+    await _storage.delete(_legacySecureJwtKey);
+    await _preferences.remove(storageLegacyAccessToken);
+    await _preferences.remove(storageAuthSessionActive);
+  }
 }
 
 final secureIdentityStorageProvider = Provider<SecureIdentityStorage>(
-  (ref) => SecureIdentityStorage(),
+  (ref) => SecureIdentityStorage(StorageService.to.preferences),
 );
+
+String? _normalized(String? value) {
+  final normalized = value?.trim() ?? '';
+  return normalized.isEmpty ? null : normalized;
+}
diff --git a/lib/common/storage/storage_keys.dart b/lib/common/storage/storage_keys.dart
index 4f48447..afb9710 100644
--- a/lib/common/storage/storage_keys.dart
+++ b/lib/common/storage/storage_keys.dart
@@ -8,6 +8,11 @@ const storageJinzhiPurityPresets = 'jinzhi_purity_presets';
 const storageJinzhiPriceColorMode = 'jinzhi_price_color_mode';
 const storageJinzhiMockLoggedIn = 'jinzhi_mock_logged_in';
 
+// Previous builds could persist credentials in SharedPreferences. These keys
+// exist only for one-time migration into secure storage.
+const storageLegacyAccessToken = 'access_token';
+const storageAuthSessionActive = 'auth_session_active';
+
 // 设备/广告标识。由各自的 SDK/ATT 流程写入，DeviceHeaderService 读出注入
 // header；未写入则为空、注入时被过滤。
 const storageDeviceToken = 'device_token'; // 推送 token
diff --git a/lib/common/storage/storage_service.dart b/lib/common/storage/storage_service.dart
index c7390e5..5bc6a39 100644
--- a/lib/common/storage/storage_service.dart
+++ b/lib/common/storage/storage_service.dart
@@ -6,6 +6,8 @@ class StorageService {
   static StorageService? _instance;
   static StorageService get to => _instance!;
 
+  SharedPreferences get preferences => _prefs;
+
   static Future<StorageService> get instance async {
     if (_instance != null) return _instance!;
     final prefs = await SharedPreferences.getInstance();
@@ -17,4 +19,6 @@ class StorageService {
   Future<void> setBool(String key, bool v) => _prefs.setBool(key, v);
   String? getString(String key) => _prefs.getString(key);
   Future<void> setString(String key, String v) => _prefs.setString(key, v);
+  bool containsKey(String key) => _prefs.containsKey(key);
+  Future<void> remove(String key) => _prefs.remove(key);
 }
diff --git a/lib/common/widgets/app_network_image.dart b/lib/common/widgets/app_network_image.dart
new file mode 100644
index 0000000..eb09616
--- /dev/null
+++ b/lib/common/widgets/app_network_image.dart
@@ -0,0 +1,104 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:shadcn_ui/shadcn_ui.dart';
+
+/// 金值统一的网络图片入口。
+///
+/// 图片会自动使用 [CachedNetworkImage] 的磁盘缓存；业务页面不应直接创建
+/// `Image.network`，以保证加载和失败状态的视觉及缓存策略一致。
+class AppNetworkImage extends StatelessWidget {
+  const AppNetworkImage({
+    super.key,
+    required this.imageUrl,
+    this.width,
+    this.height,
+    this.fit = BoxFit.cover,
+    this.alignment = Alignment.center,
+    this.borderRadius,
+    this.cacheKey,
+    this.httpHeaders,
+    this.placeholder,
+    this.errorWidget,
+    this.semanticLabel,
+  });
+
+  final String imageUrl;
+  final double? width;
+  final double? height;
+  final BoxFit fit;
+  final Alignment alignment;
+  final BorderRadius? borderRadius;
+  final String? cacheKey;
+  final Map<String, String>? httpHeaders;
+  final Widget? placeholder;
+  final Widget? errorWidget;
+  final String? semanticLabel;
+
+  @override
+  Widget build(BuildContext context) {
+    final child = imageUrl.trim().isEmpty
+        ? _ImageFallback(errorWidget: errorWidget)
+        : CachedNetworkImage(
+            imageUrl: imageUrl,
+            cacheKey: cacheKey,
+            httpHeaders: httpHeaders,
+            width: width,
+            height: height,
+            fit: fit,
+            alignment: alignment,
+            fadeInDuration: const Duration(milliseconds: 150),
+            placeholder: (_, _) =>
+                placeholder ?? const _ImageLoadingPlaceholder(),
+            errorWidget: (_, _, _) => _ImageFallback(errorWidget: errorWidget),
+          );
+
+    final clipped = borderRadius == null
+        ? child
+        : ClipRRect(borderRadius: borderRadius!, child: child);
+    if (semanticLabel == null) return clipped;
+    return Semantics(image: true, label: semanticLabel, child: clipped);
+  }
+}
+
+class _ImageLoadingPlaceholder extends StatelessWidget {
+  const _ImageLoadingPlaceholder();
+
+  @override
+  Widget build(BuildContext context) {
+    final colors = ShadTheme.of(context).colorScheme;
+    return ColoredBox(
+      color: colors.muted,
+      child: Center(
+        child: SizedBox(
+          width: 20,
+          height: 20,
+          child: CircularProgressIndicator(
+            strokeWidth: 2,
+            color: colors.mutedForeground,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _ImageFallback extends StatelessWidget {
+  const _ImageFallback({required this.errorWidget});
+
+  final Widget? errorWidget;
+
+  @override
+  Widget build(BuildContext context) {
+    if (errorWidget != null) return errorWidget!;
+    final colors = ShadTheme.of(context).colorScheme;
+    return ColoredBox(
+      color: colors.muted,
+      child: Center(
+        child: Icon(
+          Icons.image_not_supported_outlined,
+          color: colors.mutedForeground,
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/common/widgets/app_refresh.dart b/lib/common/widgets/app_refresh.dart
new file mode 100644
index 0000000..38880a3
--- /dev/null
+++ b/lib/common/widgets/app_refresh.dart
@@ -0,0 +1,28 @@
+import 'package:easy_refresh/easy_refresh.dart';
+import 'package:flutter/widgets.dart';
+
+typedef RefreshAction = Future<void> Function();
+
+/// Shared pull-to-refresh and load-more wrapper for future list features.
+class AppRefresh extends StatelessWidget {
+  const AppRefresh({
+    super.key,
+    required this.child,
+    this.onRefresh,
+    this.onLoad,
+    this.controller,
+  });
+
+  final Widget child;
+  final RefreshAction? onRefresh;
+  final RefreshAction? onLoad;
+  final EasyRefreshController? controller;
+
+  @override
+  Widget build(BuildContext context) => EasyRefresh(
+    controller: controller,
+    onRefresh: onRefresh,
+    onLoad: onLoad,
+    child: child,
+  );
+}
diff --git a/lib/common/widgets/async_state_view.dart b/lib/common/widgets/async_state_view.dart
new file mode 100644
index 0000000..02a57e5
--- /dev/null
+++ b/lib/common/widgets/async_state_view.dart
@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+import 'app_state_card.dart';
+
+/// Shared loading, failure and empty-state contract for feature pages.
+class AsyncStateView<T> extends StatelessWidget {
+  const AsyncStateView({
+    super.key,
+    required this.state,
+    required this.data,
+    this.isEmpty,
+    this.empty,
+    this.loading,
+    this.onRetry,
+    this.errorTitle = '加载失败',
+    this.errorSubtitle = '请检查网络后重试',
+    this.emptyIcon = Icons.inbox_outlined,
+    this.emptyTitle = '暂无内容',
+    this.emptySubtitle = '暂时没有可展示的数据',
+  });
+
+  final AsyncValue<T> state;
+  final Widget Function(T value) data;
+  final bool Function(T value)? isEmpty;
+  final Widget Function()? empty;
+  final Widget? loading;
+  final VoidCallback? onRetry;
+  final String errorTitle;
+  final String errorSubtitle;
+  final IconData emptyIcon;
+  final String emptyTitle;
+  final String emptySubtitle;
+
+  @override
+  Widget build(BuildContext context) {
+    return state.when(
+      loading: () =>
+          loading ?? const Center(child: CircularProgressIndicator()),
+      error: (_, _) => Center(
+        child: AppStateCard(
+          icon: Icons.error_outline,
+          title: errorTitle,
+          subtitle: errorSubtitle,
+          buttonLabel: onRetry == null ? null : '重试',
+          onButtonPressed: onRetry,
+          buttonStyle: AppStateButtonStyle.filled,
+        ),
+      ),
+      data: (value) => isEmpty?.call(value) == true
+          ? empty?.call() ??
+                Center(
+                  child: AppStateCard(
+                    icon: emptyIcon,
+                    title: emptyTitle,
+                    subtitle: emptySubtitle,
+                  ),
+                )
+          : data(value),
+    );
+  }
+}
diff --git a/lib/common/widgets/easy_refresh_localization.dart b/lib/common/widgets/easy_refresh_localization.dart
new file mode 100644
index 0000000..0183af6
--- /dev/null
+++ b/lib/common/widgets/easy_refresh_localization.dart
@@ -0,0 +1,25 @@
+import 'package:easy_refresh/easy_refresh.dart';
+
+/// Applies one Chinese copy set to every pull-to-refresh/list-load control.
+void configureEasyRefreshChineseLocalization() {
+  EasyRefresh.defaultHeaderBuilder = () => const ClassicHeader(
+    dragText: '下拉刷新',
+    armedText: '松开刷新',
+    readyText: '刷新中...',
+    processingText: '刷新中...',
+    processedText: '刷新成功',
+    noMoreText: '没有更多了',
+    failedText: '刷新失败',
+    messageText: '上次更新于 %T',
+  );
+  EasyRefresh.defaultFooterBuilder = () => const ClassicFooter(
+    dragText: '上拉加载',
+    armedText: '松开加载更多',
+    readyText: '加载中...',
+    processingText: '加载中...',
+    processedText: '加载完成',
+    noMoreText: '没有更多了',
+    failedText: '加载失败',
+    messageText: '上次更新于 %T',
+  );
+}
diff --git a/lib/features/settings/application/feedback_email_service.dart b/lib/features/settings/application/feedback_email_service.dart
new file mode 100644
index 0000000..3afd72b
--- /dev/null
+++ b/lib/features/settings/application/feedback_email_service.dart
@@ -0,0 +1,155 @@
+import 'package:device_info_plus/device_info_plus.dart';
+import 'package:flutter/foundation.dart';
+import 'package:package_info_plus/package_info_plus.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+import '../../../common/services/device_header_service.dart';
+import '../../auth/data/auth_models.dart';
+
+class FeedbackEmailService {
+  const FeedbackEmailService._();
+
+  static const recipient = 'business@yqzhice.top';
+  static const productName = '金值';
+
+  static Future<void> send(AuthState? authState) async {
+    final email = await _buildEmail(authState);
+    final uri = composeMailtoUri(
+      recipient: email.recipient,
+      subject: email.subject,
+      body: email.body,
+    );
+    try {
+      final launched = await launchUrl(
+        uri,
+        mode: LaunchMode.externalApplication,
+      );
+      if (!launched) throw const FeedbackEmailUnavailableException();
+    } catch (_) {
+      throw const FeedbackEmailUnavailableException();
+    }
+  }
+
+  @visibleForTesting
+  static Uri composeMailtoUri({
+    required String recipient,
+    required String subject,
+    required String body,
+  }) => Uri(
+    scheme: 'mailto',
+    path: recipient,
+    query: _encodeQueryParameters({'subject': subject, 'body': body}),
+  );
+
+  static String _encodeQueryParameters(
+    Map<String, String> parameters,
+  ) => parameters.entries
+      .map(
+        (entry) =>
+            '${Uri.encodeComponent(entry.key)}=${Uri.encodeComponent(entry.value)}',
+      )
+      .join('&');
+
+  static Future<_FeedbackEmail> _buildEmail(AuthState? authState) async {
+    final packageInfo = await PackageInfo.fromPlatform();
+    final device = await _loadDeviceInfo();
+    try {
+      await DeviceHeaderService.to.ensureInitialized();
+    } catch (_) {}
+
+    final headers = DeviceHeaderService.to.commonHeaders();
+    final loggedIn = authState is LoggedInAuthState ? authState : null;
+    final version = '${packageInfo.version}+${packageInfo.buildNumber}';
+    final diagnostics = [
+      'App version: $version',
+      'Channel: ${headers['User-Channel'] ?? ''}',
+      'OS version: ${device.osVersion}',
+      'Device manufacturer: ${device.manufacturer}',
+      'Device model: ${device.model}',
+      'Login type: ${loggedIn == null ? 'guest' : 'phone'}',
+      'Phone: ${loggedIn?.user.phone ?? ''}',
+    ].join('\n');
+    return _FeedbackEmail(
+      recipient: recipient,
+      subject:
+          '$productName反馈[$version]-[${device.manufacturer}]-[${device.osVersion}]',
+      body: [
+        '$productName团队你好，',
+        '请描述你的问题，可附上截图或视频：',
+        '',
+        '',
+        '----',
+        diagnostics,
+      ].join('\n'),
+    );
+  }
+
+  static Future<_FeedbackDeviceInfo> _loadDeviceInfo() async {
+    final plugin = DeviceInfoPlugin();
+    try {
+      if (kIsWeb) {
+        final info = await plugin.webBrowserInfo;
+        return _FeedbackDeviceInfo(
+          osVersion: info.platform ?? 'web',
+          manufacturer: info.browserName.name,
+          model: info.userAgent ?? '',
+        );
+      }
+      if (defaultTargetPlatform == TargetPlatform.android) {
+        final info = await plugin.androidInfo;
+        return _FeedbackDeviceInfo(
+          osVersion: info.version.release,
+          manufacturer: info.manufacturer,
+          model: info.model,
+        );
+      }
+      if (defaultTargetPlatform == TargetPlatform.iOS) {
+        final info = await plugin.iosInfo;
+        return _FeedbackDeviceInfo(
+          osVersion: info.systemVersion,
+          manufacturer: 'Apple',
+          model: info.utsname.machine,
+        );
+      }
+      return const _FeedbackDeviceInfo(
+        osVersion: '',
+        manufacturer: '',
+        model: '',
+      );
+    } catch (_) {
+      return const _FeedbackDeviceInfo(
+        osVersion: '',
+        manufacturer: '',
+        model: '',
+      );
+    }
+  }
+}
+
+class FeedbackEmailUnavailableException implements Exception {
+  const FeedbackEmailUnavailableException();
+}
+
+class _FeedbackEmail {
+  const _FeedbackEmail({
+    required this.recipient,
+    required this.subject,
+    required this.body,
+  });
+
+  final String recipient;
+  final String subject;
+  final String body;
+}
+
+class _FeedbackDeviceInfo {
+  const _FeedbackDeviceInfo({
+    required this.osVersion,
+    required this.manufacturer,
+    required this.model,
+  });
+
+  final String osVersion;
+  final String manufacturer;
+  final String model;
+}
diff --git a/lib/features/settings/presentation/settings_page.dart b/lib/features/settings/presentation/settings_page.dart
index 95ed0f1..75de0e3 100644
--- a/lib/features/settings/presentation/settings_page.dart
+++ b/lib/features/settings/presentation/settings_page.dart
@@ -1,6 +1,5 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:flutter_remix/flutter_remix.dart';
 import 'package:go_router/go_router.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
@@ -20,6 +19,7 @@ import '../../auth/application/auth_controller.dart';
 import '../../auth/data/auth_models.dart';
 import '../../profile/application/profile_settings_controller.dart';
 import '../../profile/data/profile_models.dart';
+import '../application/feedback_email_service.dart';
 
 class SettingsPage extends HookConsumerWidget {
   const SettingsPage({super.key});
@@ -31,8 +31,6 @@ class SettingsPage extends HookConsumerWidget {
     final profileSettings = ref.watch(profileSettingsControllerProvider);
     final authAsync = ref.watch(authProvider);
     final loggedIn = authAsync.valueOrNull is LoggedInAuthState;
-    final contactDebugTapCount = useState(0);
-    final contactLastTapAt = useRef<DateTime?>(null);
 
     return Scaffold(
       backgroundColor: cs.background,
@@ -199,21 +197,12 @@ class SettingsPage extends HookConsumerWidget {
               _NavRow(
                 icon: FlutterRemix.mail_line,
                 label: '联系我们',
-                trailing: 'business@hnsiderui.cn',
-                onTap: () {
-                  final now = DateTime.now();
-                  final lastTapAt = contactLastTapAt.value;
-                  if (lastTapAt == null ||
-                      now.difference(lastTapAt) >
-                          const Duration(milliseconds: 500)) {
-                    contactDebugTapCount.value = 0;
-                  }
-                  contactLastTapAt.value = now;
-                  contactDebugTapCount.value += 1;
-                  if (contactDebugTapCount.value >= 10) {
-                    contactDebugTapCount.value = 0;
-                    contactLastTapAt.value = null;
-                    context.push(AppRoutes.debug);
+                trailing: FeedbackEmailService.recipient,
+                onTap: () async {
+                  try {
+                    await FeedbackEmailService.send(authAsync.valueOrNull);
+                  } catch (_) {
+                    if (context.mounted) _showFeedbackEmailFailDialog(context);
                   }
                 },
               ),
@@ -337,13 +326,15 @@ class SettingsPage extends HookConsumerWidget {
               _ChoiceButton(
                 label: PriceColorMode.redUpGreenDown.label,
                 selected: current == PriceColorMode.redUpGreenDown,
-                onTap: () => Navigator.of(ctx).pop(PriceColorMode.redUpGreenDown),
+                onTap: () =>
+                    Navigator.of(ctx).pop(PriceColorMode.redUpGreenDown),
               ),
               const SizedBox(height: 12),
               _ChoiceButton(
                 label: PriceColorMode.greenUpRedDown.label,
                 selected: current == PriceColorMode.greenUpRedDown,
-                onTap: () => Navigator.of(ctx).pop(PriceColorMode.greenUpRedDown),
+                onTap: () =>
+                    Navigator.of(ctx).pop(PriceColorMode.greenUpRedDown),
               ),
             ],
           ),
@@ -351,9 +342,9 @@ class SettingsPage extends HookConsumerWidget {
       ),
     );
     if (selected != null && context.mounted) {
-      ref.read(profileSettingsControllerProvider.notifier).setPriceColorMode(
-            selected,
-          );
+      ref
+          .read(profileSettingsControllerProvider.notifier)
+          .setPriceColorMode(selected);
     }
   }
 
@@ -720,6 +711,24 @@ class SettingsPage extends HookConsumerWidget {
   }
 }
 
+void _showFeedbackEmailFailDialog(BuildContext context) {
+  showDialog<void>(
+    context: context,
+    builder: (context) => AlertDialog(
+      title: const Text('无法发送反馈'),
+      content: const Text(
+        '请配置并登录系统邮箱，或使用其他邮箱发送邮件至 ${FeedbackEmailService.recipient}。',
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: const Text('确定'),
+        ),
+      ],
+    ),
+  );
+}
+
 class _Section extends StatelessWidget {
   const _Section(this.title);
 
@@ -1081,9 +1090,7 @@ class _ChoiceButton extends StatelessWidget {
         decoration: BoxDecoration(
           color: selected ? cs.primary : cs.secondary,
           borderRadius: BorderRadius.circular(12),
-          border: Border.all(
-            color: selected ? cs.primary : cs.border,
-          ),
+          border: Border.all(color: selected ? cs.primary : cs.border),
         ),
         child: Text(
           label,
@@ -1182,10 +1189,7 @@ class _ValueRow extends StatelessWidget {
             style: TextStyle(fontSize: 15, color: cs.foreground),
           ),
         ),
-        Text(
-          value,
-          style: TextStyle(fontSize: 13, color: cs.mutedForeground),
-        ),
+        Text(value, style: TextStyle(fontSize: 13, color: cs.mutedForeground)),
       ],
     );
   }
diff --git a/pubspec.lock b/pubspec.lock
index 71cd272..d4f2710 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -155,6 +155,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "8.12.6"
+  cached_network_image:
+    dependency: "direct main"
+    description:
+      name: cached_network_image
+      sha256: "7c1183e361e5c8b0a0f21a28401eecdbde252441106a9816400dd4c2b2424916"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.1"
+  cached_network_image_platform_interface:
+    dependency: transitive
+    description:
+      name: cached_network_image_platform_interface
+      sha256: "35814b016e37fbdc91f7ae18c8caf49ba5c88501813f73ce8a07027a395e2829"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.1"
+  cached_network_image_web:
+    dependency: transitive
+    description:
+      name: cached_network_image_web
+      sha256: "980842f4e8e2535b8dbd3d5ca0b1f0ba66bf61d14cc3a17a9b4788a3685ba062"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.1"
   characters:
     dependency: transitive
     description:
@@ -315,6 +339,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.2"
+  easy_refresh:
+    dependency: "direct main"
+    description:
+      name: easy_refresh
+      sha256: "513a5dc82c044f8a9c9a3d600b3d5d3256070575bfd8761940533d8e209ba79b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.5.1"
   extended_image:
     dependency: transitive
     description:
@@ -384,6 +416,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.5.2"
+  flutter_cache_manager:
+    dependency: "direct main"
+    description:
+      name: flutter_cache_manager
+      sha256: "400b6592f16a4409a7f2bb929a9a7e38c72cceb8ffb99ee57bbf2cb2cecf8386"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.1"
   flutter_dotenv:
     dependency: "direct main"
     description:
@@ -808,6 +848,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  octo_image:
+    dependency: transitive
+    description:
+      name: octo_image
+      sha256: "34faa6639a78c7e3cbe79be6f9f96535867e879748ade7d17c9b1ae7536293bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   package_config:
     dependency: transitive
     description:
@@ -840,6 +888,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_drawing:
+    dependency: transitive
+    description:
+      name: path_drawing
+      sha256: bbb1934c0cbb03091af082a6389ca2080345291ef07a5fa6d6e078ba8682f977
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
   path_parsing:
     dependency: transitive
     description:
@@ -916,9 +972,9 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: f381964
-      resolved-ref: f3819645c70c02b878c754a61ef9ebd3421f2127
-      url: "https://github.com/maoios/platform_metadata.git"
+      ref: main
+      resolved-ref: bbe1aa0213d3f310f35be59829380ecf01fe9e96
+      url: "https://gitea.neuronlabs.art/zhouyu/platform_metadata.git"
     source: git
     version: "0.0.2+2"
   plugin_platform_interface:
@@ -1174,6 +1230,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.10.2"
+  sqflite:
+    dependency: transitive
+    description:
+      name: sqflite
+      sha256: e2297b1da52f127bc7a3da11439985d9b536f75070f3325e62ada69a5c585d03
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  sqflite_android:
+    dependency: transitive
+    description:
+      name: sqflite_android
+      sha256: ecd684501ebc2ae9a83536e8b15731642b9570dc8623e0073d227d0ee2bfea88
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2+2"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      sha256: "6ef422a4525ecc601db6c0a2233ff448c731307906e92cabc9ba292afaae16a6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.6"
+  sqflite_darwin:
+    dependency: transitive
+    description:
+      name: sqflite_darwin
+      sha256: "279832e5cde3fe99e8571879498c9211f3ca6391b0d818df4e17d9fff5c6ccb3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  sqflite_platform_interface:
+    dependency: transitive
+    description:
+      name: sqflite_platform_interface
+      sha256: "8dd4515c7bdcae0a785b0062859336de775e8c65db81ae33dd5445f35be61920"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   stack_trace:
     dependency: transitive
     description:
@@ -1214,6 +1310,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.1"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      sha256: c254ade258ec8282947a0acbbc90b9575b4f19673533ee46f2f6e9b3aeefd7c0
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.0"
   term_glyph:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 82c1ec6..b75816a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -36,6 +36,9 @@ dependencies:
   google_fonts: ^6.2.1
   flutter_remix: ^0.0.3
   shimmer: ^3.0.0
+  # 网络图片与磁盘缓存
+  cached_network_image: ^3.4.1
+  flutter_cache_manager: ^3.4.1
   flutter_markdown_plus: ^1.0.7
   video_player: ^2.10.0 # 启动页视频背景
   # 工具
@@ -66,6 +69,7 @@ dependencies:
   fluttertoast: ^9.0.0
   shorebird_code_push: ^2.0.6
   flutter_html: ^3.0.0
+  easy_refresh: ^3.5.1
 
 
 
diff --git a/test/common/feedback_email_service_test.dart b/test/common/feedback_email_service_test.dart
new file mode 100644
index 0000000..23bf982
--- /dev/null
+++ b/test/common/feedback_email_service_test.dart
@@ -0,0 +1,17 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jinzhi_flutter_app/features/settings/application/feedback_email_service.dart';
+
+void main() {
+  test('encodes feedback email subject and body as a mailto URI', () {
+    final uri = FeedbackEmailService.composeMailtoUri(
+      recipient: 'support@example.com',
+      subject: '金值反馈',
+      body: '问题描述\n第二行',
+    );
+
+    expect(uri.scheme, 'mailto');
+    expect(uri.path, 'support@example.com');
+    expect(uri.queryParameters['subject'], '金值反馈');
+    expect(uri.queryParameters['body'], '问题描述\n第二行');
+  });
+}
diff --git a/test/common/lifecycle/refresh_coordinator_test.dart b/test/common/lifecycle/refresh_coordinator_test.dart
new file mode 100644
index 0000000..cff0de9
--- /dev/null
+++ b/test/common/lifecycle/refresh_coordinator_test.dart
@@ -0,0 +1,22 @@
+import 'package:flutter/widgets.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jinzhi_flutter_app/common/lifecycle/refresh_coordinator.dart';
+
+void main() {
+  testWidgets('refreshes active registrations when returning to foreground', (
+    tester,
+  ) async {
+    final coordinator = RefreshCoordinator();
+    addTearDown(coordinator.dispose);
+    var activeCalls = 0;
+    var inactiveCalls = 0;
+    coordinator.register(onRefresh: () => activeCalls++);
+    coordinator.register(onRefresh: () => inactiveCalls++, active: false);
+
+    coordinator.didChangeAppLifecycleState(AppLifecycleState.resumed);
+    await tester.pump();
+
+    expect(activeCalls, 1);
+    expect(inactiveCalls, 0);
+  });
+}
diff --git a/test/common/storage/secure_identity_storage_test.dart b/test/common/storage/secure_identity_storage_test.dart
new file mode 100644
index 0000000..808f3f0
--- /dev/null
+++ b/test/common/storage/secure_identity_storage_test.dart
@@ -0,0 +1,56 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jinzhi_flutter_app/common/storage/secure_identity_storage.dart';
+import 'package:jinzhi_flutter_app/common/storage/storage_keys.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+void main() {
+  setUp(() => SharedPreferences.setMockInitialValues({}));
+
+  test(
+    'migrates a legacy SharedPreferences token into secure storage',
+    () async {
+      SharedPreferences.setMockInitialValues({
+        storageLegacyAccessToken: ' legacy ',
+      });
+      final preferences = await SharedPreferences.getInstance();
+      final secure = _MemorySecureStorage();
+      final storage = SecureIdentityStorage(preferences, secureStorage: secure);
+
+      expect(await storage.restoreAccessToken(), 'legacy');
+      expect(await secure.read('access_token'), 'legacy');
+      expect(preferences.containsKey(storageLegacyAccessToken), isFalse);
+      expect(preferences.getBool(storageAuthSessionActive), isTrue);
+    },
+  );
+
+  test(
+    'migrates the previous secure jwt key when no current token exists',
+    () async {
+      final preferences = await SharedPreferences.getInstance();
+      final secure = _MemorySecureStorage({'jwt_token': 'secure-legacy'});
+      final storage = SecureIdentityStorage(preferences, secureStorage: secure);
+
+      expect(await storage.restoreAccessToken(), 'secure-legacy');
+      expect(await secure.read('access_token'), 'secure-legacy');
+      expect(await secure.read('jwt_token'), isNull);
+    },
+  );
+}
+
+class _MemorySecureStorage implements SecureKeyValueStorage {
+  _MemorySecureStorage([Map<String, String>? initial])
+    : _values = {...?initial};
+
+  final Map<String, String> _values;
+
+  @override
+  Future<void> delete(String key) async => _values.remove(key);
+
+  @override
+  Future<String?> read(String key) async => _values[key];
+
+  @override
+  Future<void> write(String key, String value) async {
+    _values[key] = value;
+  }
+}
diff --git a/test/common/widgets/app_network_image_test.dart b/test/common/widgets/app_network_image_test.dart
new file mode 100644
index 0000000..c12a9be
--- /dev/null
+++ b/test/common/widgets/app_network_image_test.dart
@@ -0,0 +1,38 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jinzhi_flutter_app/common/theme/jinzhi_theme.dart';
+import 'package:jinzhi_flutter_app/common/widgets/app_network_image.dart';
+import 'package:shadcn_ui/shadcn_ui.dart';
+
+void main() {
+  testWidgets('uses the standard fallback for an empty image URL', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      ShadApp(
+        theme: ShadThemeData(colorScheme: jinzhiLightScheme),
+        home: const Scaffold(body: AppNetworkImage(imageUrl: '  ')),
+      ),
+    );
+
+    expect(find.byIcon(Icons.image_not_supported_outlined), findsOneWidget);
+  });
+
+  testWidgets('uses a supplied fallback for an empty image URL', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      ShadApp(
+        theme: ShadThemeData(colorScheme: jinzhiLightScheme),
+        home: const Scaffold(
+          body: AppNetworkImage(
+            imageUrl: '',
+            errorWidget: Text('image unavailable'),
+          ),
+        ),
+      ),
+    );
+
+    expect(find.text('image unavailable'), findsOneWidget);
+  });
+}