1

app/lib/screens/feed/feed_screen.dart

@@ -8,6 +8,7 @@ import '../../core/log/action_logger.dart';
 import '../../core/storage/feed_progress_store.dart';
 import '../../core/theme/app_theme.dart';
 import '../../models/video_item.dart';
+import '../../providers/auth_provider.dart';
 import '../../providers/feed_provider.dart';
 import '../../router.dart';
 import 'widgets/comment_sheet.dart';
@@ -85,6 +86,8 @@ class _FeedScreenState extends ConsumerState<FeedScreen>
   void didPopNext() {
     if (!mounted) return;
     if (!ref.read(feedTabVisibleProvider)) return;
+    // 游客额度已用尽：保持锁定，不恢复播放
+    if (ref.read(guestLockedProvider)) return;
     ActionLogger.I.log('feed_did_pop_next', page: '/home', detail: {
       'strategy': _strategy.name,
     });
@@ -124,8 +127,8 @@ class _FeedScreenState extends ConsumerState<FeedScreen>
       notifier.pool.pauseCurrent();
     } else if (state == AppLifecycleState.resumed) {
       _appActive = true;
-      // 仅在首页 Tab 可见时恢复（在"我的"等页面回前台不播）
-      if (ref.read(feedTabVisibleProvider)) {
+      // 仅在首页 Tab 可见时恢复（在"我的"等页面回前台不播）；游客锁定时不恢复
+      if (ref.read(feedTabVisibleProvider) && !ref.read(guestLockedProvider)) {
         unawaited(() async {
           await notifier.pool.resume();
           await notifier.rebindCurrent();
@@ -183,11 +186,13 @@ class _FeedScreenState extends ConsumerState<FeedScreen>
       }
       // jumpToPage 后 resume + rebindCurrent：suspend 已 stop 槽位，仅 play
       // 播不起来，必须 rebind 重新 open（有断点记录则 seek 续播）
-      unawaited(() async {
-        final n = ref.read(feedProvider(_strategy).notifier);
-        await n.pool.resume();
-        await n.rebindCurrent();
-      }());
+      if (!ref.read(guestLockedProvider)) {
+        unawaited(() async {
+          final n = ref.read(feedProvider(_strategy).notifier);
+          await n.pool.resume();
+          await n.rebindCurrent();
+        }());
+      }
     });
   }
 
@@ -208,6 +213,15 @@ class _FeedScreenState extends ConsumerState<FeedScreen>
   Widget build(BuildContext context) {
     final state = ref.watch(feedProvider(_strategy));
     final notifier = ref.read(feedProvider(_strategy).notifier);
+    final guestLocked = ref.watch(guestLockedProvider);
+
+    // 登录成功后解除游客锁并恢复当前视频播放（登录态下改为积分/会员计费）
+    ref.listen<AuthState>(authProvider, (previous, next) {
+      if (next.isLoggedIn && ref.read(guestLockedProvider)) {
+        ref.read(guestLockedProvider.notifier).state = false;
+        unawaited(ref.read(feedProvider(_strategy).notifier).rebindCurrent());
+      }
+    });
 
     // 冷启动续播：列表加载完成后把 PageView 定位到恢复的下标（每个策略一次）。
     // Notifier 会在 refresh 时按上次 videoId 恢复 currentIndex，此处只负责跳页，
@@ -304,6 +318,9 @@ class _FeedScreenState extends ConsumerState<FeedScreen>
             bottom: 0,
             child: FreeQuotaBanner(remaining: state.freeRemainingToday),
           ),
+
+          // 游客免费额度已用尽：全屏锁（必须登录，点「再逛逛」也无法继续观看）
+          if (guestLocked) const Positioned.fill(child: GuestLockOverlay()),
         ],
       ),
     );

app/lib/screens/feed/widgets/feed_overlays.dart

@@ -59,6 +59,50 @@ void showGuestLimitDialog(BuildContext context) {
   );
 }
 
+/// 游客免费额度用完后的全屏锁：盖住播放区并吞掉手势，
+/// 用户点「再逛逛」关闭弹窗后依然无法继续观看（必须登录）
+class GuestLockOverlay extends StatelessWidget {
+  const GuestLockOverlay({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Colors.black.withValues(alpha: 0.92),
+      child: Center(
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 32),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              const Icon(Icons.lock_outline, size: 48, color: AppColors.gold),
+              const SizedBox(height: 16),
+              const Text(
+                '今日免费次数已用完',
+                style: TextStyle(
+                    fontSize: 18,
+                    fontWeight: FontWeight.w700,
+                    color: Colors.white),
+              ),
+              const SizedBox(height: 8),
+              const Text(
+                '注册或登录后继续观看，登录即可解锁全部视频',
+                textAlign: TextAlign.center,
+                style: TextStyle(
+                    fontSize: 13, color: AppColors.textSecondary, height: 1.6),
+              ),
+              const SizedBox(height: 24),
+              ElevatedButton(
+                onPressed: () => context.go('/login'),
+                child: const Text('去登录/注册'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
 /// 积分不足：引导充值 / 开通会员（2001）
 void showPointsInsufficientDialog(BuildContext context, int points) {
   showDialog<void>(