fix(ui): unify layout wrappers and simplify player/shop detail pages

app/(order)/chat/page.tsx

@@ -16,7 +16,7 @@ export default function ChatListPage() {
     <div className="container mx-auto py-8 px-4 max-w-2xl">
       <h1 className="text-2xl font-bold mb-6">消息</h1>
 
-      <div className="space-y-2">
+      <div className="space-y-3">
         {sessions.map((session) => {
           const other =
             session.participants.find((participant) => participant.id !== userId) ??
@@ -58,10 +58,12 @@ export default function ChatListPage() {
         })}
 
         {sessions.length === 0 && (
-          <div className="text-center py-12 text-muted-foreground">
-            <MessageSquare className="h-12 w-12 mx-auto mb-2 opacity-50" />
-            暂无消息
-          </div>
+          <Card>
+            <CardContent className="py-8 text-center text-sm text-muted-foreground">
+              <MessageSquare className="h-12 w-12 mx-auto mb-2 opacity-50" />
+              暂无消息
+            </CardContent>
+          </Card>
         )}
       </div>
     </div>