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'),
-          asset: 'assets/icon/rail/rail_share.png',
-          label: l10n.share,
-          onTap: onShare,
+          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-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]),
         ],
       ],