fix(flutter): 放大透明播放按钮

test/player/player_center_toggle_test.dart

@@ -6,7 +6,9 @@ import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/pages/player/widgets/player_center_toggle.dart';
 
 void main() {
-  testWidgets('should_use_one_shared_52px_center_toggle_style', (tester) async {
+  testWidgets('should_use_one_shared_72px_transparent_toggle_style', (
+    tester,
+  ) async {
     await tester.pumpWidget(
       MaterialApp(
         home: Scaffold(
@@ -32,7 +34,7 @@ void main() {
       Key('test-center-toggle-a'),
       Key('player-play-toggle'),
     ]) {
-      expect(tester.getSize(find.byKey(key)), const Size(52, 52));
+      expect(tester.getSize(find.byKey(key)), const Size(72, 72));
       // 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)),
@@ -41,8 +43,10 @@ void main() {
       final icon = tester.widget<Icon>(
         find.descendant(of: find.byKey(key), matching: find.byType(Icon)),
       );
-      expect(icon.size, 26);
+      expect(icon.size, 40);
       expect(icon.color, AppColors.onPrimary);
+      expect(icon.shadows, isNotNull);
+      expect(icon.shadows, isNotEmpty);
     }
   });
 }