fix(player): 评论成功提示改黑色浮层并去除输入弹窗遮罩

test/comment/drama_comments_sheet_test.dart

@@ -291,21 +291,32 @@ void main() {
     await tester.pump(const Duration(milliseconds: 500));
 
     expect(find.byKey(const Key('comment-composer-sheet')), findsNothing);
-    final successSnackBar = find.byKey(
+    final successOverlay = find.byKey(
       const Key('comment-post-success-snackbar'),
     );
-    expect(successSnackBar, findsOneWidget);
+    expect(successOverlay, findsOneWidget);
     expect(find.text('发表成功'), findsOneWidget);
-    final snackBar = tester.widget<SnackBar>(successSnackBar);
-    expect(snackBar.action, isNull);
-    expect(snackBar.behavior, SnackBarBehavior.floating);
-    expect(snackBar.duration, const Duration(milliseconds: 1500));
+    expect(find.byType(SnackBar), findsNothing);
+    final capsule = tester.widget<Container>(successOverlay);
+    final decoration = capsule.decoration! as BoxDecoration;
+    expect(decoration.color, Colors.black.withValues(alpha: 0.82));
+    expect(decoration.borderRadius, BorderRadius.circular(8));
     expect(
-      tester.getRect(find.text('发表成功')).bottom,
-      lessThanOrEqualTo(
-        tester.getRect(find.byKey(const Key('player-comments-sheet'))).top,
-      ),
+      capsule.padding,
+      const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
     );
+    final successText = tester.widget<Text>(find.text('发表成功'));
+    expect(successText.style?.color, Colors.white);
+    expect(successText.style?.fontSize, 14);
+    final placeholderRect = tester.getRect(
+      find.byKey(const Key('comment-input-placeholder')),
+    );
+    expect(
+      tester.getRect(successOverlay).bottom,
+      lessThan(placeholderRect.top),
+    );
+    await tester.pump(const Duration(milliseconds: 1200));
+    expect(successOverlay, findsNothing);
     expect(find.byKey(const Key('comment-list')), findsOneWidget);
     expect(find.byKey(const Key('comment-count-label')), findsOneWidget);
     expect(find.byKey(const Key('comment-input-placeholder')), findsOneWidget);
@@ -341,6 +352,10 @@ void main() {
     final composer = find.byKey(const Key('comment-composer-sheet'));
     final composerInput = find.byKey(const Key('comment-composer-input'));
     expect(composer, findsOneWidget);
+    expect(
+      ModalRoute.of(tester.element(composer))?.barrierColor,
+      Colors.transparent,
+    );
     final compactHeight = tester.getSize(composer).height;
     expect(compactHeight, inInclusiveRange(100, 150));
     expect(tester.widget<TextField>(composerInput).focusNode?.hasFocus, isTrue);
@@ -406,12 +421,21 @@ void main() {
     await tester.tap(find.byKey(const Key('comment-input-placeholder')));
     await tester.pumpAndSettle();
     expect(sheet, findsOneWidget);
-    expect(find.byKey(const Key('comment-composer-sheet')), findsOneWidget);
+    final composer = find.byKey(const Key('comment-composer-sheet'));
+    expect(composer, findsOneWidget);
+    expect(
+      find.byKey(const Key('comment-composer-dismiss-layer')),
+      findsOneWidget,
+    );
 
-    await tester.tapAt(const Offset(20, 20));
+    final sheetRect = tester.getRect(sheet);
+    final composerRect = tester.getRect(composer);
+    await tester.tapAt(
+      Offset(sheetRect.center.dx, (sheetRect.top + composerRect.top) / 2),
+    );
     await tester.pumpAndSettle();
     expect(sheet, findsOneWidget);
-    expect(find.byKey(const Key('comment-composer-sheet')), findsNothing);
+    expect(composer, findsNothing);
 
     await tester.tapAt(const Offset(20, 20));
     await tester.pumpAndSettle();