优化：使用说明页增加后台入口和退出登录按钮

resources/views/rooms/guide.blade.php

@@ -13,10 +13,16 @@
 @section('nav-title', '使用说明')
 
 @section('nav-right')
-    <a href="{{ route('rooms.index') }}"
-        class="bg-indigo-500 hover:bg-indigo-400 px-4 py-2 rounded-md font-bold text-sm transition shadow-sm">
-        ← 返回大厅
-    </a>
+    {{-- admin 后台直达 --}}
+    @if (Auth::user()->user_level >= 15)
+        <a href="{{ route('admin.dashboard') }}" class="text-indigo-200 hover:text-white font-bold hidden sm:block">⚙️ 后台</a>
+    @endif
+    {{-- 退出登录 --}}
+    <form action="{{ route('logout') }}" method="POST" class="inline">
+        @csrf
+        <button type="submit"
+            class="text-sm border border-white/30 hover:bg-white/10 px-4 py-2 rounded-md transition font-medium">退出登录</button>
+    </form>
 @endsection
 
 @section('head')