fix(favorite): 统一收藏状态与互动图标

test/player/double_tap_like_test.dart

@@ -3,6 +3,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:fruitshorts/core/data/services/interaction_controller.dart';
+import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/theme/app_theme.dart';
 import 'package:fruitshorts/l10n/app_localizations.dart';
 import 'package:fruitshorts/pages/player/widgets/home_feed_overlay.dart';
@@ -41,13 +42,13 @@ void main() {
       );
       expect(repository.likeTargets, hasLength(1));
       expect(haptics.lightImpacts, 1);
-      expect(
+      final likeImage = tester.widget<Image>(
         find.descendant(
           of: find.byKey(const Key('rail-like')),
-          matching: find.byIcon(Icons.favorite_rounded),
+          matching: find.byType(Image),
         ),
-        findsOneWidget,
       );
+      expect(likeImage.color, AppColors.doubleTapHeartRed);
     }
   });
 

test/player/player_fullscreen_test.dart

@@ -630,6 +630,53 @@ void main() {
     expect(interactions.likeTargets, ['EPISODE:the-signal-demo-1']);
   });
 
+  testWidgets('should_keep_favorite_count_when_player_saves_and_returns', (
+    tester,
+  ) async {
+    await _pumpApp(tester);
+    await tester.tap(find.byKey(const Key('tab-recommend')));
+    await tester.pumpAndSettle();
+
+    final initialCount = _railLabel(tester, const Key('rail-save'));
+    await tester.tap(find.byKey(const Key('home-feed-series-name')));
+    await tester.pumpAndSettle();
+    expect(_railLabel(tester, const Key('player-rail-save')), initialCount);
+    await tester.tap(find.byKey(const Key('player-rail-save')));
+    await tester.pumpAndSettle();
+
+    final savedCount = _railLabel(tester, const Key('player-rail-save'));
+    expect(savedCount, isNot(initialCount));
+    await tester.tap(find.byKey(const Key('player-back')));
+    await tester.pumpAndSettle();
+
+    expect(find.byType(AuthPage), findsNothing);
+    expect(_railLabel(tester, const Key('rail-save')), savedCount);
+  });
+
+  testWidgets('should_keep_favorite_state_when_recommend_opens_player', (
+    tester,
+  ) async {
+    await _pumpApp(tester);
+    await tester.tap(find.byKey(const Key('tab-recommend')));
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byKey(const Key('rail-save')));
+    await tester.pumpAndSettle();
+    final savedCount = _railLabel(tester, const Key('rail-save'));
+
+    await tester.tap(find.byKey(const Key('home-feed-series-name')));
+    await tester.pumpAndSettle();
+
+    expect(_railLabel(tester, const Key('player-rail-save')), savedCount);
+    final saveImage = tester.widget<Image>(
+      find.descendant(
+        of: find.byKey(const Key('player-rail-save')),
+        matching: find.byType(Image),
+      ),
+    );
+    expect(saveImage.color, AppColors.blue);
+  });
+
   testWidgets('should_keep_video_surface_background_black', (tester) async {
     await _pumpApp(tester);
     await _openSeriesPlayer(tester);
@@ -646,9 +693,7 @@ void main() {
     expect(find.byKey(const Key('player-fallback-scrim')), findsNothing);
   });
 
-  testWidgets('should_open_comments_without_login', (
-    tester,
-  ) async {
+  testWidgets('should_open_comments_without_login', (tester) async {
     await _pumpApp(tester);
     await _openSeriesPlayer(tester);
 
@@ -1914,7 +1959,6 @@ void main() {
       find.text('Available unlock methods vary by title.'),
       findsOneWidget,
     );
-
   });
 
   testWidgets('should_require_login_before_opening_unlock_flow', (