修复手机端名单抽屉滚动失效问题：打通 flex 高度约束链，启用 overflow-y:auto

public/css/chat.css

@@ -801,13 +801,17 @@ a:hover {
         color: #fff;
     }
 
-    /* ── 名单/房间抽屉：复用原 right-panel 结构 ── */
+    /* ── 名单/房间抽屉：限制最大高度，内部用户列表区启用滚动 ── */
+    #mobile-drawer-users {
+        max-height: 80vh;
+    }
+
     #mobile-drawer-users .mobile-drawer-body {
-        max-height: 65vh;
         overflow: hidden;
         display: flex;
         flex-direction: column;
         flex: 1;
+        min-height: 0;
     }
 
     #mobile-drawer-users .mobile-right-clone {
@@ -825,7 +829,8 @@ a:hover {
     #mobile-drawer-users .user-list-content {
         flex: 1;
         overflow-y: auto;
-        max-height: calc(65vh - 80px);
+        min-height: 0;
+        -webkit-overflow-scrolling: touch;
     }
 
     #mobile-drawer-users .online-stats {

resources/views/chat/partials/layout/mobile-drawer.blade.php

@@ -86,7 +86,7 @@
 
         {{-- 用户列表容器 --}}
         <div id="mob-online-users-list"
-            style="flex:1;overflow-y:auto;padding:2px 0;">
+            style="flex:1;overflow-y:auto;min-height:0;-webkit-overflow-scrolling:touch;">
             <div style="text-align:center;color:#aaa;padding:20px;font-size:12px;">加载中...</div>
         </div>