diff --git a/__pycache__/main.cpython-312.pyc b/__pycache__/main.cpython-312.pyc
index 40dc01a..acda3f5 100644
Binary files a/__pycache__/main.cpython-312.pyc and b/__pycache__/main.cpython-312.pyc differ
diff --git a/main.py b/main.py
index 41accc8..70eacc3 100644
--- a/main.py
+++ b/main.py
@@ -1234,6 +1234,49 @@ def add_user_api(user_data: AddUserRequest):
             release_db_connection(conn)
         return JSONResponse(content={"success": False, "message": f"添加失败: {str(e)}"}, status_code=500)
 
+@app.post("/api/admin/login")
+async def admin_login(request: Request):
+    """
+    管理后台登录验证接口。
+    """
+    try:
+        body = await request.json()
+        password = body.get('password', '')
+        
+        secret = os.getenv("ADD_USER_SECRET", "123quant-speed")
+        
+        if password == secret:
+            response = JSONResponse(content={"success": True, "message": "登录成功"})
+            response.set_cookie(
+                key="admin_auth",
+                value="true",
+                httponly=True,
+                max_age=60*60*24*7,
+                samesite="lax"
+            )
+            return response
+        else:
+            return JSONResponse(content={"success": False, "message": "密码错误"}, status_code=401)
+    except Exception as e:
+        return JSONResponse(content={"success": False, "message": str(e)}, status_code=500)
+
+@app.get("/api/admin/check-auth")
+async def check_admin_auth(request: Request):
+    """
+    检查管理员是否已登录。
+    """
+    auth_cookie = request.cookies.get("admin_auth")
+    return {"success": auth_cookie == "true", "authenticated": auth_cookie == "true"}
+
+@app.post("/api/admin/logout")
+async def admin_logout():
+    """
+    管理员退出登录。
+    """
+    response = JSONResponse(content={"success": True, "message": "已退出登录"})
+    response.delete_cookie("admin_auth")
+    return response
+
 @app.get("/admin", response_class=HTMLResponse)
 async def admin_page(request: Request):
     """
diff --git a/templates/add_user.html b/templates/add_user.html
index 4acd99f..bf6bb6d 100644
--- a/templates/add_user.html
+++ b/templates/add_user.html
@@ -297,28 +297,62 @@
     </div>
 
     <script>
-        // Use secret from backend
-        const ACCESS_SECRET = "{{ secret }}";
+        document.addEventListener('DOMContentLoaded', checkAuthStatus);
 
-        // Password Check Logic
-        function checkSecret() {
-            const input = document.getElementById('secret-input');
-            const error = document.getElementById('secret-error');
-            const overlay = document.getElementById('password-overlay');
-            
-            if (input.value === ACCESS_SECRET) {
-                overlay.style.opacity = '0';
-                setTimeout(() => {
-                    overlay.style.display = 'none';
-                }, 500);
-            } else {
-                error.classList.remove('hidden');
-                input.value = '';
-                input.focus();
+        async function checkAuthStatus() {
+            try {
+                const res = await fetch('/api/admin/check-auth');
+                const data = await res.json();
+                
+                if (data.authenticated) {
+                    hideOverlay();
+                } else {
+                    showOverlay();
+                }
+            } catch (e) {
+                showOverlay();
+            }
+        }
+
+        function showOverlay() {
+            document.getElementById('password-overlay').style.display = 'flex';
+        }
+
+        function hideOverlay() {
+            const overlay = document.getElementById('password-overlay');
+            overlay.style.opacity = '0';
+            setTimeout(() => {
+                overlay.style.display = 'none';
+            }, 500);
+        }
+
+        async function checkSecret() {
+            const input = document.getElementById('secret-input');
+            const error = document.getElementById('secret-error');
+            const password = input.value;
+            
+            try {
+                const res = await fetch('/api/admin/login', {
+                    method: 'POST',
+                    headers: {'Content-Type': 'application/json'},
+                    body: JSON.stringify({password: password})
+                });
+                const data = await res.json();
+                
+                if (data.success) {
+                    error.classList.add('hidden');
+                    hideOverlay();
+                } else {
+                    error.classList.remove('hidden');
+                    input.value = '';
+                    input.focus();
+                }
+            } catch (e) {
+                error.textContent = '网络错误';
+                error.classList.remove('hidden');
             }
         }
 
-        // Allow pressing Enter to submit password
         document.getElementById('secret-input').addEventListener('keypress', function (e) {
             if (e.key === 'Enter') {
                 checkSecret();
diff --git a/templates/admin.html b/templates/admin.html
index ac3944c..fc6699f 100644
--- a/templates/admin.html
+++ b/templates/admin.html
@@ -329,6 +329,27 @@
                 </button>
             </a>
         </div>
+
+        <div class="card" style="padding: 20px;">
+            <h2 style="margin-bottom: 15px;">快捷导航</h2>
+            <div style="display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;">
+                <a href="/add-user" style="text-decoration: none;">
+                    <button style="background: linear-gradient(90deg, #28a745 0%, #20c997 100%);">
+                        ➕ 添加嘉宾
+                    </button>
+                </a>
+                <a href="/edit" style="text-decoration: none;">
+                    <button style="background: linear-gradient(90deg, #ffc107 0%, #fd7e14 100%);">
+                        ✏️ 编辑信息
+                    </button>
+                </a>
+                <a href="/data-base" style="text-decoration: none;">
+                    <button style="background: linear-gradient(90deg, #17a2b8 0%, #138496 100%);">
+                        🗄️ 数据库管理
+                    </button>
+                </a>
+            </div>
+        </div>
         
         <div class="card">
             <h2>基本信息设置</h2>
@@ -603,26 +624,61 @@
                     header.parentElement.classList.toggle('collapsed');
                 });
             });
+            
+            checkAuthStatus();
         });
 
-        // Use secret from backend
-        const ACCESS_SECRET = "{{ secret }}";
+        async function checkAuthStatus() {
+            try {
+                const res = await fetch('/api/admin/check-auth');
+                const data = await res.json();
+                
+                if (data.authenticated) {
+                    hideOverlay();
+                } else {
+                    showOverlay();
+                }
+            } catch (e) {
+                showOverlay();
+            }
+        }
 
-        // Password Check Logic
-        function checkSecret() {
+        function showOverlay() {
+            document.getElementById('password-overlay').style.display = 'flex';
+        }
+
+        function hideOverlay() {
+            const overlay = document.getElementById('password-overlay');
+            overlay.style.opacity = '0';
+            setTimeout(() => {
+                overlay.style.display = 'none';
+            }, 500);
+        }
+
+        async function checkSecret() {
             const input = document.getElementById('secret-input');
             const error = document.getElementById('secret-error');
-            const overlay = document.getElementById('password-overlay');
+            const password = input.value;
             
-            if (input.value === ACCESS_SECRET) {
-                overlay.style.opacity = '0';
-                setTimeout(() => {
-                    overlay.style.display = 'none';
-                }, 500);
-            } else {
+            try {
+                const res = await fetch('/api/admin/login', {
+                    method: 'POST',
+                    headers: {'Content-Type': 'application/json'},
+                    body: JSON.stringify({password: password})
+                });
+                const data = await res.json();
+                
+                if (data.success) {
+                    error.style.display = 'none';
+                    hideOverlay();
+                } else {
+                    error.style.display = 'block';
+                    input.value = '';
+                    input.focus();
+                }
+            } catch (e) {
+                error.textContent = '网络错误';
                 error.style.display = 'block';
-                input.value = '';
-                input.focus();
             }
         }
 
diff --git a/templates/data_base.html b/templates/data_base.html
index 5fde983..a9e441d 100644
--- a/templates/data_base.html
+++ b/templates/data_base.html
@@ -360,6 +360,18 @@
     </style>
 </head>
 <body>
+    <!-- Password Overlay -->
+    <div id="password-overlay" style="position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--bg-color); z-index: 9999; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(10px);">
+        <div class="card" style="text-align: center; width: 90%; max-width: 400px;">
+            <h2 style="margin-bottom: 20px; color: var(--primary-color);">请输入访问密钥</h2>
+            <div class="form-group">
+                <input type="password" id="secret-input" placeholder="输入密钥" style="text-align: center;">
+            </div>
+            <button onclick="checkSecret()">确认</button>
+            <p id="secret-error" style="color: #ff6b6b; margin-top: 15px; display: none;">密钥错误</p>
+        </div>
+    </div>
+
     <div class="container">
         <h1>数据库管理</h1>
         
@@ -410,6 +422,68 @@
     <div id="message"></div>
 
     <script>
+        document.addEventListener('DOMContentLoaded', checkAuthStatus);
+
+        async function checkAuthStatus() {
+            try {
+                const res = await fetch('/api/admin/check-auth');
+                const data = await res.json();
+                
+                if (data.authenticated) {
+                    hideOverlay();
+                } else {
+                    showOverlay();
+                }
+            } catch (e) {
+                showOverlay();
+            }
+        }
+
+        function showOverlay() {
+            document.getElementById('password-overlay').style.display = 'flex';
+        }
+
+        function hideOverlay() {
+            const overlay = document.getElementById('password-overlay');
+            overlay.style.opacity = '0';
+            setTimeout(() => {
+                overlay.style.display = 'none';
+            }, 500);
+        }
+
+        async function checkSecret() {
+            const input = document.getElementById('secret-input');
+            const error = document.getElementById('secret-error');
+            const password = input.value;
+            
+            try {
+                const res = await fetch('/api/admin/login', {
+                    method: 'POST',
+                    headers: {'Content-Type': 'application/json'},
+                    body: JSON.stringify({password: password})
+                });
+                const data = await res.json();
+                
+                if (data.success) {
+                    error.style.display = 'none';
+                    hideOverlay();
+                } else {
+                    error.style.display = 'block';
+                    input.value = '';
+                    input.focus();
+                }
+            } catch (e) {
+                error.textContent = '网络错误';
+                error.style.display = 'block';
+            }
+        }
+
+        document.getElementById('secret-input').addEventListener('keypress', function (e) {
+            if (e.key === 'Enter') {
+                checkSecret();
+            }
+        });
+
         let currentTable = '';
         let currentPage = 1;
         let pageSize = 50;
diff --git a/templates/edit.html b/templates/edit.html
index 69733bd..1d7556d 100644
--- a/templates/edit.html
+++ b/templates/edit.html
@@ -273,6 +273,18 @@
     </style>
 </head>
 <body>
+    <!-- Password Overlay -->
+    <div id="password-overlay" style="position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--bg-color); z-index: 9999; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(10px);">
+        <div class="card" style="text-align: center; width: 90%; max-width: 400px;">
+            <h2 style="margin-bottom: 20px;">请输入访问密钥</h2>
+            <div class="input-group">
+                <input type="password" id="secret-input" placeholder="输入密钥" style="text-align: center;">
+            </div>
+            <button onclick="checkSecret()">确认</button>
+            <p id="secret-error" class="error-msg hidden">密钥错误</p>
+        </div>
+    </div>
+
     <div class="container">
         <header>
             <img src="{{ config.header_image }}" alt="{{ config.event_title }}" class="header-img" onerror="this.style.display='none'">
@@ -384,6 +396,68 @@
     </div>
 
     <script>
+        document.addEventListener('DOMContentLoaded', checkAuthStatus);
+
+        async function checkAuthStatus() {
+            try {
+                const res = await fetch('/api/admin/check-auth');
+                const data = await res.json();
+                
+                if (data.authenticated) {
+                    hideOverlay();
+                } else {
+                    showOverlay();
+                }
+            } catch (e) {
+                showOverlay();
+            }
+        }
+
+        function showOverlay() {
+            document.getElementById('password-overlay').style.display = 'flex';
+        }
+
+        function hideOverlay() {
+            const overlay = document.getElementById('password-overlay');
+            overlay.style.opacity = '0';
+            setTimeout(() => {
+                overlay.style.display = 'none';
+            }, 500);
+        }
+
+        async function checkSecret() {
+            const input = document.getElementById('secret-input');
+            const error = document.getElementById('secret-error');
+            const password = input.value;
+            
+            try {
+                const res = await fetch('/api/admin/login', {
+                    method: 'POST',
+                    headers: {'Content-Type': 'application/json'},
+                    body: JSON.stringify({password: password})
+                });
+                const data = await res.json();
+                
+                if (data.success) {
+                    error.classList.add('hidden');
+                    hideOverlay();
+                } else {
+                    error.classList.remove('hidden');
+                    input.value = '';
+                    input.focus();
+                }
+            } catch (e) {
+                error.textContent = '网络错误';
+                error.classList.remove('hidden');
+            }
+        }
+
+        document.getElementById('secret-input').addEventListener('keypress', function (e) {
+            if (e.key === 'Enter') {
+                checkSecret();
+            }
+        });
+
         async function searchUser() {
             const query = document.getElementById('search-input').value.trim();
             const btn = document.getElementById('search-btn');