/* 页脚样式 */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 20px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 200px;
            margin-bottom: 30px;
            padding-right: 20px;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: #bbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: white;
        }
        
        .contact-info {
            color: #bbb;
        }
        
        .contact-info p {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--accent);
            margin-top: 3px;
        }
        
        .qrcode {
            display: flex;
            gap: 20px;
        }
        
        .qrcode-item {
            text-align: center;
        }
        
        .qrcode-item img {
            width: 100px;
            height: 100px;
            margin-bottom: 10px;
            background-color: white;
            padding: 5px;
        }
        
        .qrcode-item p {
            font-size: 14px;
            color: #bbb;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #bbb;
            font-size: 14px;
        }
                 
        :root {
            --primary: #0056b3;
            --secondary: #003d82;
            --accent: #00a8e8;
            --light: #f8f9fa;
            --dark: #343a40;
            --gray: #6c757d;
        }
        
         /* 悬浮客服组件样式 */
        .floating-service {
            position: fixed;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .service-item {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50%;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .service-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
        }
        
        .service-item i {
            font-size: 22px;
            color: #3498db;
        }
        
        .service-item.qq i {
            color: #3498db;
        }
        
        .service-item.wechat i {
            color: #2ecc71;
        }
        
        .service-item.back-to-top i {
            color: #e74c3c;
        }
        
        .service-tooltip {
            position: absolute;
            right: 60px;
            background: #2c3e50;
            color: white;
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 14px;
            white-space: nowrap;
            opacity: 0;
            transition: opacity 0.3s;
            pointer-events: none;
        }
        
        .service-tooltip:after {
            content: '';
            position: absolute;
            top: 50%;
            right: -5px;
            transform: translateY(-50%);
            border-left: 5px solid #2c3e50;
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
        }
        
        .service-item:hover .service-tooltip {
            opacity: 1;
        }
        
        /* QQ客服选择弹窗 - 修改为侧边显示 */
        .qq-modal {
            display: none;
            position: fixed;
            right: 80px; /* 悬浮按钮宽度 + 间距 */
            top: 50%;
            transform: translateY(-50%);
            z-index: 2000;
            background: white;
            padding: 15px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            width: 250px;
        }
        
        .qq-content h3 {
            margin-bottom: 15px;
            color: #2c3e50;
            font-size: 16px;
        }
        
        .qq-option {
            padding: 10px;
            margin: 5px 0;
            background: #f5f7fa;
            border-radius: 5px;
            cursor: pointer;
            transition: background 0.2s;
        }
        
        .qq-option:hover {
            background: #e0e5eb;
        }
        
        .close-qq-modal {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            margin-top: 10px;
            width: 100%;
        }
        
        /* 微信二维码弹窗 - 修改为侧边显示 */
        .qrcode-modal {
            display: none;
            position: fixed;
            right: 80px; /* 悬浮按钮宽度 + 间距 */
            top: 50%;
            transform: translateY(-50%);
            z-index: 2000;
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            width: 220px;
        }
        
        .qrcode-content h3 {
            margin-bottom: 10px;
            color: #2c3e50;
            font-size: 16px;
        }
        
        .qrcode-img {
            width: 160px;
            height: 160px;
            background: #f5f7fa;
            margin: 0 auto 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #7f8c8d;
            font-size: 14px;
        }
        
        .close-modal {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            margin-top: 10px;
            width: 100%;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .floating-service {
                right: 10px;
            }
            
            .service-item {
                width: 44px;
                height: 44px;
            }
            
            .service-item i {
                font-size: 20px;
            }
            
            .qq-modal, .qrcode-modal {
                right: 60px;
                width: 200px;
            }
            
            .qrcode-img {
                width: 140px;
                height: 140px;
            }
        }