diff --git a/backend/app/main.py b/backend/app/main.py
index 52ed3cc..a82986e 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -3,7 +3,17 @@ from pathlib import Path
 
 # 添加项目根目录到 Python 路径
 current_file = Path(__file__).resolve()
+package_dir = current_file.parent
 project_root = current_file.parent.parent
+
+# When this file is executed as `python app/main.py`, Python automatically puts
+# `/.../backend/app` on sys.path. That shadows the third-party `mcp` package
+# with our local `app/mcp` package and breaks `from mcp.server.fastmcp import FastMCP`.
+try:
+    sys.path.remove(str(package_dir))
+except ValueError:
+    pass
+
 if str(project_root) not in sys.path:
     sys.path.insert(0, str(project_root))
 
diff --git a/backend/app/services/admin_settings_service.py b/backend/app/services/admin_settings_service.py
index 3dba0dd..03a01d2 100644
--- a/backend/app/services/admin_settings_service.py
+++ b/backend/app/services/admin_settings_service.py
@@ -17,6 +17,9 @@ def _validate_parameter_request(request):
     if not param_key:
         return "参数键不能为空"
 
+    if param_key in SystemConfigService.DEPRECATED_BRANDING_PARAMETER_KEYS:
+        return f"{param_key} 已废弃，现已改为前端固定文案，不再支持配置"
+
     if param_key == SystemConfigService.TOKEN_EXPIRE_DAYS:
         if request.category != "system":
             return "token_expire_days 必须归类为 system"
@@ -173,7 +176,10 @@ def list_parameters(category: str | None = None, keyword: str | None = None):
 
             query += " ORDER BY category ASC, param_key ASC"
             cursor.execute(query, tuple(params))
-            rows = cursor.fetchall()
+            rows = [
+                row for row in cursor.fetchall()
+                if row["param_key"] not in SystemConfigService.DEPRECATED_BRANDING_PARAMETER_KEYS
+            ]
             return create_api_response(
                 code="200",
                 message="获取参数列表成功",
@@ -185,6 +191,9 @@ def list_parameters(category: str | None = None, keyword: str | None = None):
 
 def get_parameter(param_key: str):
     try:
+        if param_key in SystemConfigService.DEPRECATED_BRANDING_PARAMETER_KEYS:
+            return create_api_response(code="404", message="参数不存在")
+
         SystemConfigService.ensure_builtin_parameters()
         with get_db_connection() as conn:
             cursor = conn.cursor(dictionary=True)
diff --git a/backend/app/services/system_config_service.py b/backend/app/services/system_config_service.py
index 1a000f6..753ad6f 100644
--- a/backend/app/services/system_config_service.py
+++ b/backend/app/services/system_config_service.py
@@ -21,10 +21,12 @@ class SystemConfigService:
 
     # 品牌配置
     APP_NAME = 'app_name'
-    CONSOLE_SUBTITLE = 'console_subtitle'
-    PREVIEW_TITLE = 'preview_title'
-    LOGIN_WELCOME = 'login_welcome'
-    FOOTER_TEXT = 'footer_text'
+    DEPRECATED_BRANDING_PARAMETER_KEYS = frozenset({
+        'console_subtitle',
+        'preview_title',
+        'login_welcome',
+        'footer_text',
+    })
 
     # 声纹配置
     VOICEPRINT_TEMPLATE_TEXT = 'voiceprint_template_text'
@@ -97,42 +99,6 @@ class SystemConfigService:
             "description": "前端应用标题。",
             "is_active": 1,
         },
-        {
-            "param_key": CONSOLE_SUBTITLE,
-            "param_name": "控制台副标题",
-            "param_value": "智能会议协作平台",
-            "value_type": "string",
-            "category": PUBLIC_CATEGORY,
-            "description": "登录后控制台副标题。",
-            "is_active": 1,
-        },
-        {
-            "param_key": PREVIEW_TITLE,
-            "param_name": "会议预览标题",
-            "param_value": "会议预览",
-            "value_type": "string",
-            "category": PUBLIC_CATEGORY,
-            "description": "会议预览页标题。",
-            "is_active": 1,
-        },
-        {
-            "param_key": LOGIN_WELCOME,
-            "param_name": "登录欢迎语",
-            "param_value": "欢迎登录 iMeeting，请输入您的账号信息。",
-            "value_type": "string",
-            "category": PUBLIC_CATEGORY,
-            "description": "登录页欢迎语。",
-            "is_active": 1,
-        },
-        {
-            "param_key": FOOTER_TEXT,
-            "param_name": "页脚文案",
-            "param_value": "©2026 iMeeting",
-            "value_type": "string",
-            "category": PUBLIC_CATEGORY,
-            "description": "系统页脚文案。",
-            "is_active": 1,
-        },
     ]
 
     @classmethod
@@ -703,10 +669,6 @@ class SystemConfigService:
         public_configs = cls.get_configs_by_category(cls.PUBLIC_CATEGORY)
         required_keys = [
             cls.APP_NAME,
-            cls.CONSOLE_SUBTITLE,
-            cls.PREVIEW_TITLE,
-            cls.LOGIN_WELCOME,
-            cls.FOOTER_TEXT,
             cls.PAGE_SIZE,
             cls.MAX_AUDIO_SIZE,
             cls.MAX_IMAGE_SIZE,
@@ -720,12 +682,7 @@ class SystemConfigService:
         max_image_size_mb = cls.get_max_image_size()
 
         return {
-            **public_configs,
             "app_name": str(public_configs[cls.APP_NAME]).strip(),
-            "console_subtitle": str(public_configs[cls.CONSOLE_SUBTITLE]).strip(),
-            "preview_title": str(public_configs[cls.PREVIEW_TITLE]).strip(),
-            "login_welcome": str(public_configs[cls.LOGIN_WELCOME]).strip(),
-            "footer_text": str(public_configs[cls.FOOTER_TEXT]).strip(),
             "page_size": str(page_size),
             "PAGE_SIZE": page_size,
             "max_audio_size": str(max_audio_size_mb),
diff --git a/backend/sql/imeeting-seed-latest.sql b/backend/sql/imeeting-seed-latest.sql
index 54a4889..90a0c5c 100644
--- a/backend/sql/imeeting-seed-latest.sql
+++ b/backend/sql/imeeting-seed-latest.sql
@@ -160,11 +160,7 @@ VALUES
   ('page_size',              '系统分页大小',         '10',       'number', 'public', '系统通用分页数量。',                 1, NOW(), NOW()),
   ('max_audio_size',         '音频上传大小限制',     '100',      'number', 'public', '音频上传大小限制，单位：MB。',         1, NOW(), NOW()),
   ('max_image_size',         '图片上传大小限制',     '10',       'number', 'public', '图片上传大小限制，单位：MB。',         1, NOW(), NOW()),
-  ('app_name',               '系统名称',             'iMeeting', 'string', 'public', '前端应用标题。',                     1, NOW(), NOW()),
-  ('console_subtitle',       '控制台副标题',         '智能会议协作平台', 'string', 'public', '登录后控制台副标题。',     1, NOW(), NOW()),
-  ('preview_title',          '会议预览标题',         '会议预览', 'string', 'public', '会议预览页标题。',                   1, NOW(), NOW()),
-  ('login_welcome',          '登录欢迎语',           '欢迎登录 iMeeting，请输入您的账号信息。', 'string', 'public', '登录页欢迎语。', 1, NOW(), NOW()),
-  ('footer_text',            '页脚文案',             '©2026 iMeeting', 'string', 'public', '系统页脚文案。',           1, NOW(), NOW())
+  ('app_name',               '系统名称',             'iMeeting', 'string', 'public', '前端应用标题。',                     1, NOW(), NOW())
 ON DUPLICATE KEY UPDATE
   `param_name` = VALUES(`param_name`),
   `param_value` = VALUES(`param_value`),
diff --git a/frontend/src/config/systemManagementModules.jsx b/frontend/src/config/systemManagementModules.jsx
index e56903e..9addbd4 100644
--- a/frontend/src/config/systemManagementModules.jsx
+++ b/frontend/src/config/systemManagementModules.jsx
@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { lazy } from 'react';
 import {
   UserOutlined,
   KeyOutlined,
@@ -10,7 +10,7 @@ import {
   DeploymentUnitOutlined,
 } from '@ant-design/icons';
 
-export const SYSTEM_MANAGEMENT_OVERVIEW_LOADER = () => import('../pages/admin/SystemManagementOverview');
+export const SYSTEM_MANAGEMENT_OVERVIEW_COMPONENT = lazy(() => import('../pages/admin/SystemManagementOverview'));
 
 export const SYSTEM_MANAGEMENT_MODULES = [
   {
@@ -19,7 +19,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '账号、角色、密码重置',
     path: '/admin/management/user-management',
     icon: <UserOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/UserManagement'),
+    component: lazy(() => import('../pages/admin/UserManagement')),
     group: '基础治理',
   },
   {
@@ -28,7 +28,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '菜单与角色授权矩阵',
     path: '/admin/management/permission-management',
     icon: <KeyOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/PermissionManagement'),
+    component: lazy(() => import('../pages/admin/PermissionManagement')),
     group: '基础治理',
   },
   {
@@ -37,7 +37,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '码表、平台类型、扩展属性',
     path: '/admin/management/dict-management',
     icon: <DatabaseOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/DictManagement'),
+    component: lazy(() => import('../pages/admin/DictManagement')),
     group: '基础治理',
   },
   {
@@ -46,7 +46,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: 'ASR 热词与同步',
     path: '/admin/management/hot-word-management',
     icon: <FontSizeOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/HotWordManagement'),
+    component: lazy(() => import('../pages/admin/HotWordManagement')),
     group: '基础治理',
   },
   {
@@ -55,7 +55,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '系统参数统一配置',
     path: '/admin/management/parameter-management',
     icon: <SettingOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/ParameterManagement'),
+    component: lazy(() => import('../pages/admin/ParameterManagement')),
     group: '平台配置',
   },
   {
@@ -64,7 +64,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '音频模型与 LLM 模型配置',
     path: '/admin/management/model-management',
     icon: <AppstoreOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/ModelManagement'),
+    component: lazy(() => import('../pages/admin/ModelManagement')),
     group: '平台配置',
   },
   {
@@ -73,7 +73,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '版本、下载地址、发布状态',
     path: '/admin/management/client-management',
     icon: <DesktopOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/ClientManagement'),
+    component: lazy(() => import('../pages/ClientManagement')),
     group: '设备与应用',
   },
   {
@@ -82,7 +82,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '外部系统入口与图标配置',
     path: '/admin/management/external-app-management',
     icon: <AppstoreOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/ExternalAppManagement'),
+    component: lazy(() => import('../pages/admin/ExternalAppManagement')),
     group: '设备与应用',
   },
   {
@@ -91,7 +91,7 @@ export const SYSTEM_MANAGEMENT_MODULES = [
     desc: '专用设备、激活和绑定状态',
     path: '/admin/management/terminal-management',
     icon: <DeploymentUnitOutlined style={{ fontSize: 18, color: '#1d4ed8' }} />,
-    loader: () => import('../pages/admin/TerminalManagement'),
+    component: lazy(() => import('../pages/admin/TerminalManagement')),
     group: '设备与应用',
   },
 ];
diff --git a/frontend/src/pages/AdminManagement.jsx b/frontend/src/pages/AdminManagement.jsx
index 2cdfe6f..49d7ef2 100644
--- a/frontend/src/pages/AdminManagement.jsx
+++ b/frontend/src/pages/AdminManagement.jsx
@@ -1,9 +1,9 @@
-import React, { Suspense, lazy, useMemo } from 'react';
+import React, { Suspense, useMemo } from 'react';
 import { Alert } from 'antd';
 import { Navigate, useParams } from 'react-router-dom';
 import {
   DEFAULT_SYSTEM_MANAGEMENT_MODULE,
-  SYSTEM_MANAGEMENT_OVERVIEW_LOADER,
+  SYSTEM_MANAGEMENT_OVERVIEW_COMPONENT,
   SYSTEM_MANAGEMENT_MODULE_MAP,
 } from '../config/systemManagementModules';
 
@@ -13,17 +13,11 @@ const AdminManagement = () => {
 
   const currentModule = useMemo(() => (
     currentModuleKey === DEFAULT_SYSTEM_MANAGEMENT_MODULE
-      ? { loader: SYSTEM_MANAGEMENT_OVERVIEW_LOADER }
+      ? { component: SYSTEM_MANAGEMENT_OVERVIEW_COMPONENT }
       : SYSTEM_MANAGEMENT_MODULE_MAP[currentModuleKey]
   ), [currentModuleKey]);
 
-  const CurrentComponent = useMemo(() => {
-    if (!currentModule?.loader) {
-      return null;
-    }
-
-    return lazy(currentModule.loader);
-  }, [currentModule]);
+  const CurrentComponent = currentModule?.component || null;
 
   if (!moduleKey) {
     return <Navigate to={`/admin/management/${DEFAULT_SYSTEM_MANAGEMENT_MODULE}`} replace />;
@@ -42,7 +36,7 @@ const AdminManagement = () => {
 
   return (
     <Suspense fallback={<Alert type="info" showIcon message="管理模块加载中..." />}>
-      <CurrentComponent />
+      <CurrentComponent key={currentModuleKey} />
     </Suspense>
   );
 };
diff --git a/frontend/src/pages/admin/ParameterManagement.jsx b/frontend/src/pages/admin/ParameterManagement.jsx
index 37c258b..8402677 100644
--- a/frontend/src/pages/admin/ParameterManagement.jsx
+++ b/frontend/src/pages/admin/ParameterManagement.jsx
@@ -26,10 +26,7 @@ const PUBLIC_PARAM_KEYS = new Set([
   'app_name',
   'page_size',
   'max_audio_size',
-  'preview_title',
-  'login_welcome',
-  'footer_text',
-  'console_subtitle',
+  'max_image_size',
 ]);
 
 const ParameterManagement = () => {
diff --git a/frontend/src/utils/configService.js b/frontend/src/utils/configService.js
index 7421085..17127a2 100644
--- a/frontend/src/utils/configService.js
+++ b/frontend/src/utils/configService.js
@@ -3,12 +3,13 @@ import { buildApiUrl, API_ENDPOINTS } from '../config/api';
 
 const PUBLIC_CONFIG_CACHE_KEY = 'imeeting_public_config_cache';
 const PUBLIC_CONFIG_CACHE_TTL = 5 * 60 * 1000;
+const FIXED_BRANDING = {
+  console_subtitle: '智能会议协作平台',
+  preview_title: '会议预览',
+  login_welcome: '欢迎登录，请输入您的账号信息。',
+};
 const REQUIRED_PUBLIC_CONFIG_KEYS = [
   'app_name',
-  'console_subtitle',
-  'preview_title',
-  'login_welcome',
-  'footer_text',
   'PAGE_SIZE',
   'MAX_FILE_SIZE',
   'MAX_IMAGE_SIZE',
@@ -50,10 +51,6 @@ const validatePublicConfig = (configs) => {
   return {
     ...configs,
     app_name: String(configs.app_name).trim(),
-    console_subtitle: String(configs.console_subtitle).trim(),
-    preview_title: String(configs.preview_title).trim(),
-    login_welcome: String(configs.login_welcome).trim(),
-    footer_text: String(configs.footer_text).trim(),
     PAGE_SIZE: pageSize,
     page_size: String(pageSize),
     MAX_FILE_SIZE: maxFileSize,
@@ -115,12 +112,13 @@ class ConfigService {
   }
 
   buildBrandingConfig(configs) {
+    const appName = String(configs?.app_name || 'iMeeting').trim() || 'iMeeting';
     return {
-      app_name: configs.app_name,
-      console_subtitle: configs.console_subtitle,
-      preview_title: configs.preview_title,
-      login_welcome: configs.login_welcome,
-      footer_text: configs.footer_text,
+      app_name: appName,
+      console_subtitle: FIXED_BRANDING.console_subtitle,
+      preview_title: FIXED_BRANDING.preview_title,
+      login_welcome: FIXED_BRANDING.login_welcome,
+      footer_text: `©${new Date().getFullYear()} ${appName}`,
     };
   }