fix(player): 收紧推荐页互动栏间距

lib/pages/player/widgets/home_feed_overlay.dart

@@ -273,7 +273,6 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
       onSave: widget.onSave,
       onLike: widget.onLike,
       onComments: widget.onComments,
-      onShare: widget.onShare,
       onEpisodes: widget.onEpisodes ?? widget.onOpenFullPlayer,
     );
   }

lib/pages/player/widgets/home_feed_recommend_panel.dart

@@ -305,7 +305,6 @@ class HomeFeedActionRail extends StatelessWidget {
     required this.onSave,
     required this.onLike,
     required this.onComments,
-    required this.onShare,
     required this.onEpisodes,
     this.favoriteCount,
     this.likeCount,
@@ -320,13 +319,13 @@ class HomeFeedActionRail extends StatelessWidget {
   final VoidCallback onSave;
   final VoidCallback onLike;
   final VoidCallback onComments;
-  final VoidCallback onShare;
   final VoidCallback onEpisodes;
 
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
     return InteractionRail(
+      itemGap: 14,
       items: [
         InteractionRailItem(
           key: const Key('rail-save'),
@@ -337,14 +336,6 @@ class HomeFeedActionRail extends StatelessWidget {
           selected: saved,
           onTap: onSave,
         ),
-        InteractionRailItem(
-          key: const Key('rail-comments'),
-          asset: 'assets/icon/rail/rail_comment.png',
-          label: l10n.comments,
-          count: commentCount,
-          countKey: const Key('rail-comments-count'),
-          onTap: onComments,
-        ),
         InteractionRailItem(
           key: const Key('rail-like'),
           asset: 'assets/icon/rail/rail_like.png',
@@ -356,10 +347,12 @@ class HomeFeedActionRail extends StatelessWidget {
           onTap: onLike,
         ),
         InteractionRailItem(
-          key: const Key('rail-share'),
+          key: const Key('rail-comments'),
-          asset: 'assets/icon/rail/rail_share.png',
+          asset: 'assets/icon/rail/rail_comment.png',
-          label: l10n.share,
+          label: l10n.comments,
-          onTap: onShare,
+          count: commentCount,
+          countKey: const Key('rail-comments-count'),
+          onTap: onComments,
         ),
         InteractionRailItem(
           key: const Key('rail-episodes'),

lib/pages/player/widgets/interaction_rail.dart

@@ -7,7 +7,7 @@ import '../../../core/theme/app_colors.dart';
 
 const double _buttonSize = 44;
 const double _iconSize = 32;
-const double _itemGap = 24;
+const double _defaultItemGap = 24;
 
 /// 互动栏单项：图标、计数与点击。
 class InteractionRailItem {
@@ -36,9 +36,14 @@ class InteractionRailItem {
 
 /// 播放页与首页 feed 共用的右侧互动栏：收藏/评论/喜欢/分享。
 class InteractionRail extends StatelessWidget {
-  const InteractionRail({super.key, required this.items});
+  const InteractionRail({
+    super.key,
+    required this.items,
+    this.itemGap = _defaultItemGap,
+  });
 
   final List<InteractionRailItem> items;
+  final double itemGap;
 
   @override
   Widget build(BuildContext context) {
@@ -46,7 +51,7 @@ class InteractionRail extends StatelessWidget {
       mainAxisSize: MainAxisSize.min,
       children: [
         for (var index = 0; index < items.length; index++) ...[
-          if (index > 0) const SizedBox(height: _itemGap),
+          if (index > 0) SizedBox(height: itemGap),
           _RailButton(item: items[index]),
         ],
       ],

test/home/home_preview_layout_test.dart

@@ -346,7 +346,7 @@ void main() {
     );
     expect(saveImage.color, AppColors.onPrimary);
     expect(find.byKey(const Key('rail-comments')), findsOneWidget);
-    expect(find.byKey(const Key('rail-share')), findsOneWidget);
+    expect(find.byKey(const Key('rail-share')), findsNothing);
     expect(
       tester.widget<Text>(find.byKey(const Key('rail-comments-count'))).data,
       '12',
@@ -364,19 +364,6 @@ void main() {
           .assetName,
       'assets/icon/rail/rail_comment.png',
     );
-    expect(
-      (tester
-                  .widget<Image>(
-                    find.descendant(
-                      of: find.byKey(const Key('rail-share')),
-                      matching: find.byType(Image),
-                    ),
-                  )
-                  .image
-              as AssetImage)
-          .assetName,
-      'assets/icon/rail/rail_share.png',
-    );
     expect(find.byKey(const Key('rail-episodes')), findsOneWidget);
     expect(
       find.descendant(
@@ -385,6 +372,13 @@ void main() {
       ),
       findsOneWidget,
     );
+    final saveRect = tester.getRect(find.byKey(const Key('rail-save')));
+    final likeRect = tester.getRect(find.byKey(const Key('rail-like')));
+    final commentsRect = tester.getRect(find.byKey(const Key('rail-comments')));
+    final episodesRect = tester.getRect(find.byKey(const Key('rail-episodes')));
+    expect(likeRect.top - saveRect.bottom, closeTo(14, 0.1));
+    expect(commentsRect.top - likeRect.bottom, closeTo(14, 0.1));
+    expect(episodesRect.top - commentsRect.bottom, closeTo(14, 0.1));
     expect(
       tester.getRect(find.byKey(const Key('home-feed-action-rail'))).right,
       closeTo(

test/player/player_fullscreen_test.dart

@@ -1351,6 +1351,17 @@ void main() {
     expect(shareImage.width, 32);
     expect(shareImage.height, 32);
     expect(shareImage.colorBlendMode, BlendMode.srcIn);
+    final saveRect = tester.getRect(find.byKey(const Key('player-rail-save')));
+    final commentsRect = tester.getRect(
+      find.byKey(const Key('player-rail-comments')),
+    );
+    final likeRect = tester.getRect(find.byKey(const Key('player-rail-like')));
+    final shareRect = tester.getRect(
+      find.byKey(const Key('player-rail-share')),
+    );
+    expect(commentsRect.top - saveRect.bottom, closeTo(24, 0.1));
+    expect(likeRect.top - commentsRect.bottom, closeTo(24, 0.1));
+    expect(shareRect.top - likeRect.bottom, closeTo(24, 0.1));
 
     final saveButton = tester.widget<IconButton>(
       find.descendant(