refactor: 备用大模型整合到大模型配置页

- 备用大模型不再单独页面，直接在大模型配置页显示 - 新增/编辑使用模态框，更简洁高效 - 移除独立的 backup_llm.html 和 backup_llm_form.html - 统一侧边栏导航，移除备用大模型链接 - API 改为只返回 JSON，不再渲染页面
fix: 统一后台管理侧边栏导航
2026-04-16 15:58:17 +08:00 · 2026-04-16 15:41:01 +08:00 · 2026-04-16 14:36:13 +08:00 · 2026-04-15 01:10:59 +08:00 · 2026-04-14 19:17:24 +08:00
23 changed files with 768 additions and 251 deletions
--- a/admin.py
+++ b/admin.py
@@ -10,7 +10,7 @@ import json

 from models import (db, User, Translation, TranslationCache, GuestTranslation, 
                   SystemConfig, OperationLog, DataPackage, UserPackage, DynamicConfig,
-                   UserTypeConfig, MembershipPlanConfig)
+                   UserTypeConfig, MembershipPlanConfig, BackupLLMConfig)
 from config import USER_LIMITS, MEMBERSHIP_PLANS

 admin_bp = Blueprint('admin', __name__, url_prefix='/admin')
@@ -686,7 +686,10 @@ def llm_config():
        'timeout': DynamicConfig.get('llm_timeout', LLM_CONFIG.get('timeout')),
    }
    
-    return render_template('admin/llm_config.html', config=config)
+    # 获取备用大模型配置
+    backup_configs = BackupLLMConfig.query.order_by(BackupLLMConfig.sort_order).all()
+    
+    return render_template('admin/llm_config.html', config=config, backup_configs=[c.to_dict() for c in backup_configs])


@admin_bp.route('/llm_config/save', methods=['POST'])
@@ -1217,4 +1220,186 @@ def get_membership_plan(plan_key):
 def get_all_membership_plans():
    """获取所有会员套餐配置"""
    plans = MembershipPlanConfig.query.filter_by(is_active=True).order_by(MembershipPlanConfig.sort_order).all()
-    return [p.to_dict() for p in plans]
+    return [p.to_dict() for p in plans]
+
+
+# ==================== 备用大模型接口管理 ====================
+@admin_bp.route('/backup-llm')
+@admin_required
+def backup_llm_list():
+    """备用大模型接口列表 - 重定向到大模型配置页"""
+    return redirect(url_for('admin.llm_config'))
+
+
+@admin_bp.route('/backup-llm/add', methods=['POST'])
+@admin_required
+def add_backup_llm():
+    """添加备用大模型接口"""
+    data = request.json
+    
+    config = BackupLLMConfig(
+        provider_name=data.get('provider_name'),
+        api_base=data.get('api_base'),
+        api_key=data.get('api_key'),
+        model=data.get('model'),
+        is_active=data.get('is_active', True),
+        sort_order=int(data.get('sort_order', 0)),
+        description=data.get('description'),
+    )
+    
+    db.session.add(config)
+    db.session.commit()
+    
+    # 记录日志
+    log = OperationLog(
+        user_id=session.get('user_id'),
+        username='admin',
+        action='add_backup_llm',
+        target=config.provider_name,
+        detail=json.dumps(config.to_dict(), ensure_ascii=False)
+    )
+    db.session.add(log)
+    db.session.commit()
+    
+    return jsonify({'success': True, 'config': config.to_dict()})
+
+
+@admin_bp.route('/backup-llm/<int:config_id>/edit', methods=['POST'])
+@admin_required
+def edit_backup_llm(config_id):
+    """编辑备用大模型接口"""
+    config = BackupLLMConfig.query.get_or_404(config_id)
+    data = request.json
+    
+    config.provider_name = data.get('provider_name', config.provider_name)
+    config.api_base = data.get('api_base', config.api_base)
+    config.api_key = data.get('api_key', config.api_key)
+    config.model = data.get('model', config.model)
+    config.is_active = data.get('is_active', True)
+    config.sort_order = int(data.get('sort_order', config.sort_order))
+    config.description = data.get('description', config.description)
+    
+    db.session.commit()
+    
+    # 记录日志
+    log = OperationLog(
+        user_id=session.get('user_id'),
+        username='admin',
+        action='edit_backup_llm',
+        target=config.provider_name,
+        detail=json.dumps(config.to_dict(), ensure_ascii=False)
+    )
+    db.session.add(log)
+    db.session.commit()
+    
+    return jsonify({'success': True, 'config': config.to_dict()})
+
+
+@admin_bp.route('/backup-llm/<int:config_id>/delete', methods=['POST'])
+@admin_required
+def delete_backup_llm(config_id):
+    """删除备用大模型接口"""
+    config = BackupLLMConfig.query.get_or_404(config_id)
+    
+    provider_name = config.provider_name
+    db.session.delete(config)
+    db.session.commit()
+    
+    # 记录日志
+    log = OperationLog(
+        user_id=session.get('user_id'),
+        username='admin',
+        action='delete_backup_llm',
+        target=provider_name
+    )
+    db.session.add(log)
+    db.session.commit()
+    
+    return jsonify({'success': True})
+
+
+@admin_bp.route('/backup-llm/<int:config_id>/toggle', methods=['POST'])
+@admin_required
+def toggle_backup_llm(config_id):
+    """切换备用大模型接口状态"""
+    config = BackupLLMConfig.query.get_or_404(config_id)
+    config.is_active = not config.is_active
+    db.session.commit()
+    
+    return jsonify({'success': True, 'is_active': config.is_active})
+
+
+@admin_bp.route('/backup-llm/<int:config_id>/test', methods=['POST'])
+@admin_required
+def test_backup_llm(config_id):
+    """测试备用大模型接口"""
+    config = BackupLLMConfig.query.get_or_404(config_id)
+    
+    try:
+        from openai import OpenAI
+        
+        client = OpenAI(
+            api_key=config.api_key or 'sk-test',
+            base_url=config.api_base,
+        )
+        
+        model = config.model or 'default'
+        
+        # 发送简单测试请求
+        response = client.chat.completions.create(
+            model=model,
+            messages=[{"role": "user", "content": "Hello"}],
+            max_tokens=10,
+            timeout=10,
+        )
+        
+        return jsonify({
+            'success': True,
+            'provider': config.provider_name,
+            'model': model,
+            'response': response.choices[0].message.content[:50] if response.choices else 'OK'
+        })
+        
+    except Exception as e:
+        return jsonify({'success': False, 'error': str(e)})
+
+
+@admin_bp.route('/backup-llm/init', methods=['POST'])
+@admin_required
+def init_backup_llm():
+    """初始化默认备用大模型"""
+    init_default_backup_llm()
+    return jsonify({'success': True})
+
+
+def init_default_backup_llm():
+    """初始化默认备用大模型接口配置"""
+    defaults = [
+        ('本地LM Studio', 'http://localhost:1234/v1', None, None, 0),
+        ('OpenAI', 'https://api.openai.com/v1', None, 'gpt-4', 1),
+        ('DeepSeek', 'https://api.deepseek.com/v1', None, 'deepseek-chat', 2),
+        ('阿里百炼', 'https://dashscope.aliyuncs.com/compatible-mode/v1', None, 'qwen-turbo', 3),
+        ('SiliconFlow', 'https://api.siliconflow.cn/v1', None, 'Qwen/Qwen2.5-72B-Instruct', 4),
+    ]
+    
+    for provider_name, api_base, api_key, model, sort_order in defaults:
+        existing = BackupLLMConfig.query.filter_by(provider_name=provider_name).first()
+        if not existing:
+            config = BackupLLMConfig(
+                provider_name=provider_name,
+                api_base=api_base,
+                api_key=api_key,
+                model=model,
+                is_active=True,
+                sort_order=sort_order,
+                description=f'{provider_name} 默认接口',
+            )
+            db.session.add(config)
+    
+    db.session.commit()
+
+
+def get_backup_llm_configs():
+    """获取所有备用大模型配置（供其他模块使用）"""
+    configs = BackupLLMConfig.query.filter_by(is_active=True).order_by(BackupLLMConfig.sort_order).all()
+    return [c.to_dict() for c in configs]
--- a/app.py
+++ b/app.py
@@ -223,6 +223,8 @@ def pricing():
        'priority_queue': '优先处理队列',
        'custom_instruction': '自定义翻译要求',
        'api_access': 'API接口调用',
+        'email_notify': '邮件通知',
+        'email_attachment': '邮件附件发送',
    }
    
    # 从数据库读取动态配置的会员套餐
@@ -289,10 +291,15 @@ def profile():
    daily_remaining = limits['daily_translations'] - user.daily_count if limits['daily_translations'] > 0 else '无限'
    max_pages = limits['max_pages'] if limits['max_pages'] > 0 else '无限'
    
+    # 检查是否有邮件附件权限
+    user_features = limits.get('features', [])
+    has_email_attachment = 'email_attachment' in user_features or user_features == ['all']
+    
    return render_template('profile.html', 
        user=user,
        daily_remaining=daily_remaining,
-        max_pages=max_pages
+        max_pages=max_pages,
+        has_email_attachment=has_email_attachment
    )


@@ -861,11 +868,29 @@ def update_settings():
            user.phone = phone
            user.phone_verified = False
    
+    # 通知邮箱（更换后邮件通知发送到此邮箱）
+    if 'email' in data:
+        email = data.get('email', '')
+        if email and '@' in email:
+            # 检查邮箱是否已被其他用户使用
+            existing = User.query.filter(User.email == email, User.id != user.id).first()
+            if existing:
+                return jsonify({'error': '该邮箱已被其他用户使用'}), 400
+            user.email = email
+    
    # 通知设置
    if 'notify_on_complete' in data:
        user.notify_on_complete = data.get('notify_on_complete', True)
    if 'notify_on_expire' in data:
        user.notify_on_expire = data.get('notify_on_expire', True)
+    if 'notify_with_attachment' in data:
+        # 检查是否有附件权限
+        limits = USER_LIMITS.get(user.user_type, USER_LIMITS['free'])
+        user_features = limits.get('features', [])
+        if 'email_attachment' in user_features or user_features == ['all']:
+            user.notify_with_attachment = data.get('notify_with_attachment', False)
+        else:
+            return jsonify({'error': '邮件附件功能需VIP会员', 'feature': 'email_attachment'}), 403
    if 'email_notify' in data:
        user.email_notify = data.get('email_notify', True)
    
--- a/config.py
+++ b/config.py
@@ -39,19 +39,19 @@ USER_LIMITS = {
        "daily_translations": 10,
        "max_pages": 50,
        "max_file_size": 30 * 1024 * 1024,  # 30MB
-        "features": ["basic_translate", "retranslate", "export_pdf", "history"],
+        "features": ["basic_translate", "retranslate", "export_pdf", "history", "email_notify"],
    },
    "vip_basic": {  # 基础会员 (月付 ¥29)
        "daily_translations": 50,
        "max_pages": 100,
        "max_file_size": 50 * 1024 * 1024,
-        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf"],
+        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "email_notify", "email_attachment"],
    },
    "vip_pro": {    # 专业会员 (月付 ¥99)
        "daily_translations": 200,
        "max_pages": 500,
        "max_file_size": 100 * 1024 * 1024,
-        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "batch_translate", "custom_terms"],
+        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "batch_translate", "custom_terms", "email_notify", "email_attachment"],
    },
    "vip_enterprise": {  # 企业会员 (年付 ¥999)
        "daily_translations": -1,  # 无限制
--- a/models.py
+++ b/models.py
@@ -54,6 +54,7 @@ class User(db.Model):
    # 邮件通知设置
    email_notify = db.Column(db.Boolean, default=True)  # 邮件通知开关
    notify_on_complete = db.Column(db.Boolean, default=True)  # 翻译完成通知
+    notify_with_attachment = db.Column(db.Boolean, default=False)  # 邮件带附件（VIP功能）
    notify_on_expire = db.Column(db.Boolean, default=True)   # 会员到期提醒
    
    # 关系
@@ -132,6 +133,7 @@ class User(db.Model):
            'invite_rewards': self.invite_rewards,
            'email_notify': self.email_notify,
            'notify_on_complete': self.notify_on_complete,
+            'notify_with_attachment': self.notify_with_attachment,
            'notify_on_expire': self.notify_on_expire,
            'daily_count': self.daily_count,
            'total_count': self.total_count,
@@ -867,6 +869,44 @@ class EmailNotification(db.Model):
        }


+# ==================== 备用大模型接口配置 ====================
+class BackupLLMConfig(db.Model):
+    """备用大模型接口配置"""
+    __tablename__ = 'backup_llm_config'
+    
+    id = db.Column(db.Integer, primary_key=True)
+    
+    # 服务商信息
+    provider_name = db.Column(db.String(100), nullable=False)    # 服务商名称: OpenAI, DeepSeek, 阿里百炼, etc.
+    api_base = db.Column(db.String(255), nullable=False)         # API地址
+    api_key = db.Column(db.String(255), nullable=True)           # API Key（可选）
+    model = db.Column(db.String(100), nullable=True)             # 默认模型
+    
+    # 状态
+    is_active = db.Column(db.Boolean, default=True)              # 是否启用
+    sort_order = db.Column(db.Integer, default=0)                # 排序
+    
+    # 备注
+    description = db.Column(db.String(255), nullable=True)       # 备注
+    
+    # 时间
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'provider_name': self.provider_name,
+            'api_base': self.api_base,
+            'api_key': self.api_key,
+            'model': self.model,
+            'is_active': self.is_active,
+            'sort_order': self.sort_order,
+            'description': self.description,
+            'created_at': self.created_at.isoformat() if self.created_at else None,
+        }
+
+
 # ==================== 邮件模板配置 ====================
 class EmailTemplateConfig(db.Model):
    """邮件模板配置"""
--- a/templates/admin/cache.html
+++ b/templates/admin/cache.html
@@ -20,14 +20,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/dashboard.html
+++ b/templates/admin/dashboard.html
@@ -59,56 +59,23 @@
    <!-- 侧边栏 -->
    <nav class="sidebar">
        <div class="position-absolute top-0 w-100 p-3 border-bottom border-secondary">
-            <h5 class="text-white mb-0">
-                <i class="bi bi-gear-fill"></i> 后台管理
-            </h5>
+            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item">
-                <a class="nav-link active" href="{{ url_for('admin.dashboard') }}">
-                    <i class="bi bi-speedometer2"></i> 数据概览
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.users') }}">
-                    <i class="bi bi-people"></i> 用户管理
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.translations') }}">
-                    <i class="bi bi-file-text"></i> 翻译记录
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.cache_list') }}">
-                    <i class="bi bi-database"></i> 缓存管理
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.stats') }}">
-                    <i class="bi bi-bar-chart"></i> 统计报表
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.logs') }}">
-                    <i class="bi bi-list-check"></i> 操作日志
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.llm_config') }}">
-                    <i class="bi bi-cpu"></i> 大模型配置
-                </a>
-            </li>
-            <li class="nav-item">
-                <a class="nav-link" href="{{ url_for('admin.settings') }}">
-                    <i class="bi bi-sliders"></i> 系统配置
-                </a>
-            </li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
-            <a href="/" class="btn btn-outline-light btn-sm w-100">
-                <i class="bi bi-house"></i> 返回前台
-            </a>
+            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
        </div>
    </nav>

--- a/templates/admin/llm_config.html
+++ b/templates/admin/llm_config.html
@@ -12,6 +12,8 @@
        .sidebar .nav-link { color: #adb5bd; padding: 12px 20px; }
        .sidebar .nav-link:hover, .sidebar .nav-link.active { color: #fff; background: rgba(255,255,255,0.1); }
        .main-content { margin-left: 250px; padding: 20px; }
+        .table th, .table td { font-size: 0.9rem; }
+        .status-badge { font-size: 0.75rem; }
    </style>
 </head>
 <body>
@@ -20,14 +22,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
@@ -35,9 +40,10 @@
    </nav>

    <main class="main-content">
+        <!-- 主配置 -->
        <div class="card">
            <div class="card-header">
-                <h6 class="mb-0"><i class="bi bi-cpu"></i> 大模型接口配置</h6>
+                <h6 class="mb-0"><i class="bi bi-cpu"></i> 主大模型接口配置</h6>
            </div>
            <div class="card-body">
                <form id="llmConfigForm">
@@ -63,62 +69,145 @@
                            <div class="mb-3">
                                <label class="form-label">最大输出Token</label>
                                <input type="number" class="form-control" name="max_tokens" value="{{ config.max_tokens }}" placeholder="8000">
-                                <small class="text-muted">每次翻译最大输出长度</small>
                            </div>
                            <div class="mb-3">
                                <label class="form-label">分块大小</label>
                                <input type="number" class="form-control" name="chunk_size" value="{{ config.chunk_size }}" placeholder="2000">
-                                <small class="text-muted">PDF文本分块大小</small>
                            </div>
                            <div class="mb-3">
                                <label class="form-label">超时时间（秒）</label>
                                <input type="number" class="form-control" name="timeout" value="{{ config.timeout }}" placeholder="180">
-                                <small class="text-muted">API请求超时时间</small>
                            </div>
                        </div>
                    </div>
                    
                    <div class="mt-3">
                        <button type="submit" class="btn btn-primary"><i class="bi bi-check-lg"></i> 保存配置</button>
-                        <button type="button" class="btn btn-outline-secondary" onclick="testConnection()"><i class="bi bi-plug"></i> 测试连接</button>
+                        <button type="button" class="btn btn-outline-secondary" onclick="testMainConnection()"><i class="bi bi-plug"></i> 测试连接</button>
                        <button type="button" class="btn btn-outline-warning" onclick="resetToDefault()"><i class="bi bi-arrow-counterclockwise"></i> 恢复默认</button>
                    </div>
                </form>
                
-                <div id="testResult" class="mt-3" style="display:none;"></div>
+                <div id="mainTestResult" class="mt-3" style="display:none;"></div>
            </div>
        </div>
        
+        <!-- 备用大模型 -->
        <div class="card mt-3">
-            <div class="card-header"><h6 class="mb-0"><i class="bi bi-info-circle"></i> 常用模型配置参考</h6></div>
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <h6 class="mb-0"><i class="bi bi-cloud"></i> 备用大模型接口</h6>
+                <button class="btn btn-sm btn-primary" onclick="showAddModal()"><i class="bi bi-plus-lg"></i> 新增</button>
+            </div>
            <div class="card-body">
-                <table class="table table-sm">
+                <table class="table table-sm table-hover">
                    <thead class="table-light">
-                        <tr><th>服务商</th><th>API地址</th><th>模型示例</th></tr>
+                        <tr>
+                            <th style="width: 40px;">#</th>
+                            <th>服务商</th>
+                            <th>API地址</th>
+                            <th>模型</th>
+                            <th style="width: 70px;">状态</th>
+                            <th style="width: 130px;">操作</th>
+                        </tr>
                    </thead>
                    <tbody>
-                        <tr><td>本地LM Studio</td><td>http://localhost:1234/v1</td><td>根据加载的模型</td></tr>
-                        <tr><td>OpenAI</td><td>https://api.openai.com/v1</td><td>gpt-4, gpt-3.5-turbo</td></tr>
-                        <tr><td>DeepSeek</td><td>https://api.deepseek.com/v1</td><td>deepseek-chat</td></tr>
-                        <tr><td>阿里百炼</td><td>https://dashscope.aliyuncs.com/compatible-mode/v1</td><td>qwen-turbo, qwen-plus</td></tr>
-                        <tr><td>SiliconFlow</td><td>https://api.siliconflow.cn/v1</td><td>Qwen/Qwen2.5-72B-Instruct</td></tr>
+                        {% for item in backup_configs %}
+                        <tr id="backup-row-{{ item.id }}">
+                            <td>{{ item.sort_order }}</td>
+                            <td>
+                                <strong>{{ item.provider_name }}</strong>
+                                {% if item.description %}<br><small class="text-muted">{{ item.description }}</small>{% endif %}
+                            </td>
+                            <td><code style="font-size: 0.8rem;">{{ item.api_base }}</code></td>
+                            <td><code style="font-size: 0.8rem;">{{ item.model or '默认' }}</code></td>
+                            <td>
+                                {% if item.is_active %}
+                                <span class="badge bg-success status-badge">启用</span>
+                                {% else %}
+                                <span class="badge bg-secondary status-badge">禁用</span>
+                                {% endif %}
+                            </td>
+                            <td>
+                                <button class="btn btn-sm btn-outline-primary" onclick="testBackup({{ item.id }})" title="测试"><i class="bi bi-plug"></i></button>
+                                <button class="btn btn-sm btn-outline-secondary" onclick="showEditModal({{ item.id }})" title="编辑"><i class="bi bi-pencil"></i></button>
+                                <button class="btn btn-sm btn-outline-warning" onclick="toggleBackup({{ item.id }})" title="切换"><i class="bi bi-toggle2"></i></button>
+                                <button class="btn btn-sm btn-outline-danger" onclick="deleteBackup({{ item.id }})" title="删除"><i class="bi bi-trash"></i></button>
+                            </td>
+                        </tr>
+                        {% else %}
+                        <tr><td colspan="6" class="text-center text-muted py-3">暂无备用大模型配置</td></tr>
+                        {% endfor %}
                    </tbody>
                </table>
+                
+                <div id="backupTestResult" class="mt-2" style="display:none;"></div>
            </div>
        </div>
    </main>
    
+    <!-- 新增/编辑模态框 -->
+    <div class="modal fade" id="backupModal" tabindex="-1">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h6 class="modal-title" id="modalTitle">新增备用大模型</h6>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <form id="backupForm">
+                        <input type="hidden" id="backup_id" name="id">
+                        <div class="mb-3">
+                            <label class="form-label">服务商名称 <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control" id="provider_name" name="provider_name" required placeholder="如: OpenAI">
+                        </div>
+                        <div class="mb-3">
+                            <label class="form-label">API地址 <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control" id="api_base" name="api_base" required placeholder="https://api.openai.com/v1">
+                        </div>
+                        <div class="mb-3">
+                            <label class="form-label">API Key</label>
+                            <input type="text" class="form-control" id="api_key" name="api_key" placeholder="sk-xxx（可选）">
+                        </div>
+                        <div class="mb-3">
+                            <label class="form-label">默认模型</label>
+                            <input type="text" class="form-control" id="model" name="model" placeholder="gpt-4">
+                        </div>
+                        <div class="mb-3">
+                            <label class="form-label">备注</label>
+                            <input type="text" class="form-control" id="description" name="description">
+                        </div>
+                        <div class="row">
+                            <div class="col-6">
+                                <label class="form-label">排序</label>
+                                <input type="number" class="form-control" id="sort_order" name="sort_order" value="0">
+                            </div>
+                            <div class="col-6">
+                                <label class="form-label">状态</label>
+                                <select class="form-select" id="is_active" name="is_active">
+                                    <option value="true">启用</option>
+                                    <option value="false">禁用</option>
+                                </select>
+                            </div>
+                        </div>
+                    </form>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
+                    <button type="button" class="btn btn-primary" onclick="saveBackup()"><i class="bi bi-check-lg"></i> 保存</button>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
    <script>
+    // 主配置
    document.getElementById('llmConfigForm').addEventListener('submit', function(e) {
        e.preventDefault();
        const formData = new FormData(this);
        const data = {};
        formData.forEach((value, key) => {
-            if (key === 'max_tokens' || key === 'chunk_size' || key === 'timeout') {
-                data[key] = parseInt(value) || 0;
-            } else {
-                data[key] = value;
-            }
+            data[key] = ['max_tokens', 'chunk_size', 'timeout'].includes(key) ? parseInt(value) || 0 : value;
        });
        
        fetch('/admin/llm_config/save', {
@@ -127,30 +216,20 @@
            body: JSON.stringify(data)
        })
        .then(r => r.json())
-        .then(res => {
-            if (res.success) {
-                alert('配置已保存！');
-            } else {
-                alert('保存失败: ' + res.error);
-            }
-        })
+        .then(res => alert(res.success ? '配置已保存！' : '保存失败: ' + res.error))
        .catch(err => alert('请求失败: ' + err));
    });
    
-    function testConnection() {
+    function testMainConnection() {
        const formData = new FormData(document.getElementById('llmConfigForm'));
        const data = {};
        formData.forEach((value, key) => {
-            if (key === 'max_tokens' || key === 'chunk_size' || key === 'timeout') {
-                data[key] = parseInt(value) || 0;
-            } else {
-                data[key] = value;
-            }
+            data[key] = ['max_tokens', 'chunk_size', 'timeout'].includes(key) ? parseInt(value) || 0 : value;
        });
        
-        const resultDiv = document.getElementById('testResult');
-        resultDiv.style.display = 'block';
-        resultDiv.innerHTML = '<div class="alert alert-info">正在测试连接...</div>';
+        const div = document.getElementById('mainTestResult');
+        div.style.display = 'block';
+        div.innerHTML = '<div class="alert alert-info"><i class="bi bi-hourglass-split"></i> 测试中...</div>';
        
        fetch('/admin/llm_config/test', {
            method: 'POST',
@@ -159,27 +238,113 @@
        })
        .then(r => r.json())
        .then(res => {
-            if (res.success) {
-                resultDiv.innerHTML = '<div class="alert alert-success"><i class="bi bi-check-circle"></i> 连接成功！模型: ' + res.model + '</div>';
-            } else {
-                resultDiv.innerHTML = '<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 连接失败: ' + res.error + '</div>';
-            }
+            div.innerHTML = res.success 
+                ? `<div class="alert alert-success"><i class="bi bi-check-circle"></i> 连接成功！模型: ${res.model}</div>`
+                : `<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 连接失败: ${res.error}</div>`;
        })
-        .catch(err => {
-            resultDiv.innerHTML = '<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 请求失败: ' + err + '</div>';
-        });
+        .catch(err => div.innerHTML = `<div class="alert alert-danger">请求失败: ${err}</div>`);
    }
    
    function resetToDefault() {
-        if (confirm('确定恢复默认配置吗？')) {
+        if (confirm('确定恢复默认配置？')) {
            fetch('/admin/llm_config/reset', {method: 'POST'})
            .then(r => r.json())
+            .then(res => res.success ? location.reload() : alert('恢复失败: ' + res.error));
+        }
+    }
+    
+    // 备用大模型
+    const backupData = {{ backup_configs | tojson }};
+    const modal = new bootstrap.Modal(document.getElementById('backupModal'));
+    
+    function showAddModal() {
+        document.getElementById('modalTitle').textContent = '新增备用大模型';
+        document.getElementById('backup_id').value = '';
+        document.getElementById('provider_name').value = '';
+        document.getElementById('api_base').value = '';
+        document.getElementById('api_key').value = '';
+        document.getElementById('model').value = '';
+        document.getElementById('description').value = '';
+        document.getElementById('sort_order').value = '0';
+        document.getElementById('is_active').value = 'true';
+        modal.show();
+    }
+    
+    function showEditModal(id) {
+        const item = backupData.find(b => b.id === id);
+        if (!item) return;
+        
+        document.getElementById('modalTitle').textContent = '编辑备用大模型';
+        document.getElementById('backup_id').value = id;
+        document.getElementById('provider_name').value = item.provider_name;
+        document.getElementById('api_base').value = item.api_base;
+        document.getElementById('api_key').value = item.api_key || '';
+        document.getElementById('model').value = item.model || '';
+        document.getElementById('description').value = item.description || '';
+        document.getElementById('sort_order').value = item.sort_order;
+        document.getElementById('is_active').value = item.is_active ? 'true' : 'false';
+        modal.show();
+    }
+    
+    function saveBackup() {
+        const id = document.getElementById('backup_id').value;
+        const data = {
+            provider_name: document.getElementById('provider_name').value,
+            api_base: document.getElementById('api_base').value,
+            api_key: document.getElementById('api_key').value,
+            model: document.getElementById('model').value,
+            description: document.getElementById('description').value,
+            sort_order: parseInt(document.getElementById('sort_order').value) || 0,
+            is_active: document.getElementById('is_active').value === 'true'
+        };
+        
+        const url = id ? `/admin/backup-llm/${id}/edit` : '/admin/backup-llm/add';
+        
+        fetch(url, {
+            method: 'POST',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify(data)
+        })
+        .then(r => r.json())
+        .then(res => {
+            if (res.success) {
+                modal.hide();
+                location.reload();
+            } else {
+                alert('保存失败: ' + (res.error || '未知错误'));
+            }
+        })
+        .catch(err => alert('请求失败: ' + err));
+    }
+    
+    function testBackup(id) {
+        const div = document.getElementById('backupTestResult');
+        div.style.display = 'block';
+        div.innerHTML = '<div class="alert alert-info"><i class="bi bi-hourglass-split"></i> 测试中...</div>';
+        
+        fetch(`/admin/backup-llm/${id}/test`, {method: 'POST'})
+        .then(r => r.json())
+        .then(res => {
+            div.innerHTML = res.success 
+                ? `<div class="alert alert-success"><i class="bi bi-check-circle"></i> ${res.provider} 连接成功</div>`
+                : `<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 连接失败: ${res.error}</div>`;
+        })
+        .catch(err => div.innerHTML = `<div class="alert alert-danger">请求失败: ${err}</div>`);
+    }
+    
+    function toggleBackup(id) {
+        fetch(`/admin/backup-llm/${id}/toggle`, {method: 'POST'})
+        .then(r => r.json())
+        .then(res => res.success ? location.reload() : alert('操作失败'));
+    }
+    
+    function deleteBackup(id) {
+        if (confirm('确定删除此备用接口？')) {
+            fetch(`/admin/backup-llm/${id}/delete`, {method: 'POST'})
+            .then(r => r.json())
            .then(res => {
-                if (res.success) {
-                    location.reload();
-                } else {
-                    alert('恢复失败: ' + res.error);
-                }
+                if (res.success) document.getElementById(`backup-row-${id}`).remove();
+                else alert('删除失败');
            });
        }
    }
--- a/templates/admin/logs.html
+++ b/templates/admin/logs.html
@@ -20,14 +20,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/membership.html
+++ b/templates/admin/membership.html
@@ -25,15 +25,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/membership_plan_form.html
+++ b/templates/admin/membership_plan_form.html
@@ -20,15 +20,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/membership_plans.html
+++ b/templates/admin/membership_plans.html
@@ -28,15 +28,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/package_form.html
+++ b/templates/admin/package_form.html
@@ -20,15 +20,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/packages.html
+++ b/templates/admin/packages.html
@@ -24,15 +24,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/settings.html
+++ b/templates/admin/settings.html
@@ -22,14 +22,16 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
--- a/templates/admin/stats.html
+++ b/templates/admin/stats.html
@@ -21,14 +21,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/translation_detail.html
+++ b/templates/admin/translation_detail.html
@@ -21,14 +21,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/translations.html
+++ b/templates/admin/translations.html
@@ -21,14 +21,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/user_detail.html
+++ b/templates/admin/user_detail.html
@@ -22,14 +22,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/user_limits.html
+++ b/templates/admin/user_limits.html
@@ -20,14 +20,16 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
--- a/templates/admin/user_type_form.html
+++ b/templates/admin/user_type_form.html
@@ -21,15 +21,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/user_types.html
+++ b/templates/admin/user_types.html
@@ -29,15 +29,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/admin/users.html
+++ b/templates/admin/users.html
@@ -23,14 +23,17 @@
            <h5 class="text-white mb-0"><i class="bi bi-gear-fill"></i> 后台管理</h5>
        </div>
        <ul class="nav flex-column">
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.dashboard') }}"><i class="bi bi-speedometer2"></i> 数据概览</a></li>
            <li class="nav-item"><a class="nav-link active" href="{{ url_for('admin.users') }}"><i class="bi bi-people"></i> 用户管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
-            <li class="nav-item"><a class="nav-link" href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.translations') }}"><i class="bi bi-file-text"></i> 翻译记录</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.cache_list') }}"><i class="bi bi-database"></i> 缓存管理</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.packages') }}"><i class="bi bi-box-seam"></i> 数据包套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.stats') }}"><i class="bi bi-bar-chart"></i> 统计报表</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.logs') }}"><i class="bi bi-list-check"></i> 操作日志</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.llm_config') }}"><i class="bi bi-cpu"></i> 大模型配置</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.user_types') }}"><i class="bi bi-person-badge"></i> 用户类型</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.membership_plans') }}"><i class="bi bi-credit-card"></i> 会员套餐</a></li>
+            <li class="nav-item"><a class="nav-link " href="{{ url_for('admin.settings') }}"><i class="bi bi-sliders"></i> 系统配置</a></li>
        </ul>
        <div class="position-absolute bottom-0 w-100 p-3 border-top border-secondary">
            <a href="/" class="btn btn-outline-light btn-sm w-100"><i class="bi bi-house"></i> 返回前台</a>
--- a/templates/profile.html
+++ b/templates/profile.html
@@ -186,20 +186,54 @@
                    <!-- 邮件通知设置 -->
                    <div class="col-md-6 mb-3">
                        <div class="border rounded p-3">
-                            <h6 class="mb-3">📧 邮件通知</h6>
-                            <div class="form-check mb-2">
-                                <input class="form-check-input" type="checkbox" id="notifyComplete" 
-                                       {% if user.notify_on_complete %}checked{% endif %}
-                                       onchange="updateNotifySettings()">
-                                <label class="form-check-label">翻译完成通知（含附件）</label>
+                            <h6 class="mb-3">📧 通知邮箱</h6>
+                            <div id="emailStatus">
+                                {% if user.email %}
+                                <p class="mb-2">当前通知邮箱：<strong>{{ user.email }}</strong></p>
+                                <button class="btn btn-outline-secondary btn-sm mb-3" onclick="showEmailModal()">更换通知邮箱</button>
+                                {% else %}
+                                <p class="text-muted">未设置通知邮箱</p>
+                                <button class="btn btn-primary btn-sm" onclick="showEmailModal()">绑定邮箱</button>
+                                {% endif %}
+                                
+                                <hr class="my-2">
+                                
+                                <!-- 翻译完成邮件通知（所有用户都有） -->
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" id="notifyComplete" 
+                                           {% if user.notify_on_complete %}checked{% endif %}
+                                           onchange="updateNotifySettings()">
+                                    <label class="form-check-label">翻译完成邮件通知</label>
+                                </div>
+                                
+                                <!-- 邮件带附件（VIP功能） -->
+                                {% if has_email_attachment %}
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" id="notifyAttachment" 
+                                           {% if user.notify_with_attachment %}checked{% endif %}
+                                           onchange="updateNotifySettings()">
+                                    <label class="form-check-label">邮件带附件发送 <span class="badge bg-success">VIP</span></label>
+                                </div>
+                                {% else %}
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" disabled>
+                                    <label class="form-check-label text-muted">邮件带附件发送 <span class="badge bg-secondary">需VIP</span></label>
+                                    <a href="/pricing" class="small ms-2">升级会员</a>
+                                </div>
+                                {% endif %}
+                                
+                                <!-- 会员到期提醒 -->
+                                {% if user.user_type.startswith('vip') %}
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" id="notifyExpire"
+                                           {% if user.notify_on_expire %}checked{% endif %}
+                                           onchange="updateNotifySettings()">
+                                    <label class="form-check-label">会员到期提醒</label>
+                                </div>
+                                {% endif %}
+                                
+                                <small class="text-muted">通知将发送至上述邮箱</small>
                            </div>
-                            <div class="form-check mb-2">
-                                <input class="form-check-input" type="checkbox" id="notifyExpire"
-                                       {% if user.notify_on_expire %}checked{% endif %}
-                                       onchange="updateNotifySettings()">
-                                <label class="form-check-label">会员到期提醒</label>
-                            </div>
-                            <small class="text-muted">通知发送至：{{ user.email }}</small>
                        </div>
                    </div>
                </div>
@@ -334,6 +368,33 @@
        </div>
    </div>

+    <!-- 更换邮箱模态框 -->
+    <div class="modal fade" id="emailModal" tabindex="-1">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">更换通知邮箱</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <form id="emailForm">
+                        <div class="mb-3">
+                            <label class="form-label">新邮箱地址</label>
+                            <input type="email" class="form-control" id="newEmail" placeholder="example@email.com" required>
+                        </div>
+                        <div class="alert alert-info">
+                            <small>💡 更换后，通知邮件将发送至新邮箱</small>
+                        </div>
+                    </form>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
+                    <button type="button" class="btn btn-primary" onclick="submitEmail()">确认更换</button>
+                </div>
+            </div>
+        </div>
+    </div>
+
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
    <script>
        // 加载账户流水
@@ -485,21 +546,27 @@
        // 更新通知设置
        function updateNotifySettings() {
            const notifyComplete = document.getElementById('notifyComplete').checked;
-            const notifyExpire = document.getElementById('notifyExpire').checked;
+            const notifyExpire = document.getElementById('notifyExpire')?.checked || false;
+            const notifyAttachment = document.getElementById('notifyAttachment')?.checked || false;
            
            fetch('/api/profile/settings', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    notify_on_complete: notifyComplete,
-                    notify_on_expire: notifyExpire
+                    notify_on_expire: notifyExpire,
+                    notify_with_attachment: notifyAttachment
                })
            })
            .then(r => r.json())
            .then(data => {
                if (data.success) {
-                    // 不刷新页面，只显示提示
                    console.log('设置已更新');
+                } else if (data.feature === 'email_attachment') {
+                    alert('邮件附件功能需要VIP会员');
+                    location.href = '/pricing';
+                } else {
+                    alert('更新失败：' + data.error);
                }
            });
        }
@@ -527,6 +594,35 @@
                alert('手机号格式不正确');
            }
        }
+        
+        // 更换邮箱
+        function showEmailModal() {
+            new bootstrap.Modal(document.getElementById('emailModal')).show();
+        }
+        
+        function submitEmail() {
+            const newEmail = document.getElementById('newEmail').value;
+            
+            if (!newEmail || !newEmail.includes('@')) {
+                alert('请输入有效的邮箱地址');
+                return;
+            }
+            
+            fetch('/api/profile/settings', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ email: newEmail })
+            })
+            .then(r => r.json())
+            .then(data => {
+                if (data.success) {
+                    alert('通知邮箱已更新为：' + newEmail);
+                    location.reload();
+                } else {
+                    alert('更新失败：' + data.error);
+                }
+            });
+        }
    </script>
 </body>
 </html>
Author	SHA1	Message	Date
coder	db98c2b82c	refactor: 备用大模型整合到大模型配置页 - 备用大模型不再单独页面，直接在大模型配置页显示 - 新增/编辑使用模态框，更简洁高效 - 移除独立的 backup_llm.html 和 backup_llm_form.html - 统一侧边栏导航，移除备用大模型链接 - API 改为只返回 JSON，不再渲染页面	2026-04-16 15:58:17 +08:00
coder	9c7d1a512e	fix: 统一后台管理侧边栏导航 - 所有后台页面统一包含完整导航链接 - 新增: 数据包套餐、备用大模型、用户类型、会员套餐 - 修复不同页面导航不一致的问题	2026-04-16 15:41:01 +08:00
coder	8ef9df65d2	feat: 备用大模型接口管理功能 - 新增 BackupLLMConfig 数据模型存储备用大模型配置 - 支持手动新增、编辑、删除备用大模型接口 - 支持测试连接功能 - 大模型配置页面静态表格改为动态管理的备用接口链接 - 默认初始化5个常用大模型服务商配置	2026-04-16 14:36:13 +08:00
coder	9a36b9245a	feat: 拆分邮件通知选项，根据会员权益显示 - 翻译完成邮件通知（所有用户） - 鮮件带附件发送（VIP专属，free用户显示需VIP） - 会员到期提醒（仅VIP用户显示） - 添加 notify_with_attachment 字段 - 更新各等级权益：email_notify/email_attachment	2026-04-15 01:10:59 +08:00
coder	56709b1a65	fix: 个人中心邮箱显示逻辑优化 - 显示用户注册邮箱作为通知邮箱 - 支持更换通知邮箱（一次只能通知一个） - 添加更换邮箱模态框 - API接口检查邮箱是否已被其他用户使用	2026-04-14 19:17:24 +08:00