fix(player): 完善进度预览清屏与下拉刷新

test/player/player_fullscreen_test.dart

@@ -570,14 +570,11 @@ void main() {
       32,
     );
 
-    await tester.tap(find.byKey(const Key('player-synopsis-toggle')));
-    await tester.pumpAndSettle();
-    final expandedBottom = tester.getRect(
+    final bottomPanel = tester.getRect(
       find.byKey(const Key('player-controls-bottom')),
     );
-    // K29.9 展开态展示简介全文，高度会增长，但仍需留在画面下半区。
-    expect(expandedBottom.height, lessThanOrEqualTo(330));
-    expect(expandedBottom.top, greaterThanOrEqualTo(screenHeight * 0.5));
+    expect(bottomPanel.height, lessThanOrEqualTo(330));
+    expect(bottomPanel.top, greaterThanOrEqualTo(screenHeight * 0.5));
     expect(tester.takeException(), isNull);
   });
 
@@ -753,8 +750,33 @@ void main() {
   });
 
   testWidgets('should_toggle_synopsis_with_inline_text_button', (tester) async {
-    await _pumpApp(tester);
-    await _openSeriesPlayer(tester);
+    final longCopy = Drama(
+      id: 'long-copy-demo',
+      title: 'Long Title',
+      synopsis:
+          'A very long synopsis that keeps describing the story far beyond '
+          'the two lines available under the title in the fullscreen player.',
+      posterUrl: '/files/long-copy-demo.png',
+      genre: 'Drama',
+      detailLoaded: true,
+      episodes: const [
+        Episode(
+          id: 'long-copy-demo-1',
+          number: 1,
+          title: 'Episode 1',
+          isFree: true,
+          videoUrl: 'https://example.test/long-demo-1.mp4',
+        ),
+      ],
+    );
+    await _pumpApp(
+      tester,
+      catalog: FakeCatalogRepository(dramas: [longCopy]),
+    );
+    await _openSeriesPlayer(
+      tester,
+      cardKey: const Key('home-feed-card-long-copy-demo'),
+    );
 
     final toggle = find.byKey(const Key('player-synopsis-toggle'));
     final synopsis = find.byKey(const Key('player-synopsis'));
@@ -762,10 +784,26 @@ void main() {
       find.descendant(of: toggle, matching: find.text('More')),
       findsOneWidget,
     );
-    expect(tester.widget<Text>(synopsis).maxLines, 1);
     expect(
-      tester.getRect(toggle).left - tester.getRect(synopsis).right,
-      lessThanOrEqualTo(4),
+      tester
+          .widget<Text>(
+            find.descendant(of: toggle, matching: find.text('More')),
+          )
+          .style
+          ?.color,
+      AppColors.textPrimary,
+    );
+    expect(tester.widget<Text>(synopsis).maxLines, 2);
+    expect(
+      tester.widget<Padding>(find.byKey(const Key('player-synopsis-gap'))).padding,
+      const EdgeInsets.only(left: 6),
+    );
+    final synopsisRect = tester.getRect(synopsis);
+    final toggleRect = tester.getRect(toggle);
+    expect(toggleRect.left, greaterThan(synopsisRect.left));
+    expect(
+      toggleRect.center.dy,
+      greaterThan(synopsisRect.top + synopsisRect.height * 0.45),
     );
 
     await tester.tap(toggle);
@@ -774,7 +812,12 @@ void main() {
       find.descendant(of: toggle, matching: find.text('Less')),
       findsOneWidget,
     );
-    expect(tester.widget<Text>(synopsis).maxLines, isNull);
+    expect(tester.widget<Text>(find.byKey(const Key('player-synopsis'))).maxLines, isNull);
+    final lessRect = tester.getRect(toggle);
+    final textRect = tester.getRect(find.byKey(const Key('player-synopsis')));
+    final block = tester.getRect(find.byKey(const Key('player-episode-synopsis')));
+    expect(lessRect.top, greaterThanOrEqualTo(textRect.bottom - 1));
+    expect(block.right - lessRect.right, lessThanOrEqualTo(2));
 
     await tester.tap(toggle);
     await tester.pumpAndSettle();
@@ -782,7 +825,7 @@ void main() {
       find.descendant(of: toggle, matching: find.text('More')),
       findsOneWidget,
     );
-    expect(tester.widget<Text>(synopsis).maxLines, 1);
+    expect(tester.widget<Text>(synopsis).maxLines, 2);
   });
 
   testWidgets('should_share_one_muted_style_across_label_and_synopsis', (
@@ -860,7 +903,11 @@ void main() {
     final synopsis = tester.widget<Text>(
       find.byKey(const Key('player-synopsis')),
     );
-    expect(synopsis.maxLines, 1);
+    expect(
+      tester.getRect(find.byKey(const Key('player-synopsis'))).right,
+      lessThanOrEqualTo(320 - 14 - 54),
+    );
+    expect(synopsis.maxLines, 2);
     expect(synopsis.overflow, TextOverflow.ellipsis);
     expect(
       tester.getRect(find.byKey(const Key('player-episodes-pill'))).right,