fix(flutter): 简介灰字统一并透明暂停按钮

test/player/player_center_toggle_test.dart

@@ -33,16 +33,16 @@ void main() {
       Key('player-play-toggle'),
     ]) {
       expect(tester.getSize(find.byKey(key)), const Size(52, 52));
-      final container = tester.widget<Container>(
+      // 暂停按钮改为透明背景，容器已不再绘制任何底色或装饰。
+      expect(
         find.descendant(of: find.byKey(key), matching: find.byType(Container)),
+        findsNothing,
       );
-      final decoration = container.decoration! as BoxDecoration;
-      expect(decoration.color, AppColors.blue);
-      expect(decoration.shape, BoxShape.circle);
       final icon = tester.widget<Icon>(
         find.descendant(of: find.byKey(key), matching: find.byType(Icon)),
       );
       expect(icon.size, 26);
+      expect(icon.color, AppColors.onPrimary);
     }
   });
 }

test/player/player_fullscreen_test.dart

@@ -380,6 +380,30 @@ void main() {
     expect(tester.widget<Text>(synopsis).maxLines, 1);
   });
 
+  testWidgets('should_share_one_muted_style_across_label_and_synopsis', (
+    tester,
+  ) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+
+    TextStyle styleOf(Finder finder) =>
+        tester.widget<Text>(finder).style ?? const TextStyle();
+    final label = styleOf(find.byKey(const Key('player-episode-label')));
+    final synopsis = styleOf(find.byKey(const Key('player-synopsis')));
+    final separator = styleOf(
+      find.descendant(
+        of: find.byKey(const Key('player-episode-synopsis')),
+        matching: find.text('|'),
+      ),
+    );
+    for (final style in [label, synopsis, separator]) {
+      expect(style.fontSize, 12);
+      expect(style.fontWeight, FontWeight.w500);
+      expect(style.color?.withValues(alpha: 1), AppColors.playerMuted);
+    }
+    expect(separator.color, isNot(Colors.white));
+  });
+
   testWidgets('should_fit_long_title_and_synopsis_at_320_width', (
     tester,
   ) async {