* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 顶部关键词 */
        .top-keywords {
            background-color: #f1f1f1;
            padding: 8px 0;
            text-align: center;
            font-size: 14px;
            color: #666;
            border-bottom: 1px solid #e0e0e0;
        }
        
       
        
        /* 主内容区 */
        .main-content {
            display: flex;
            margin: 30px 0;
            gap: 30px;
        }
        
        .products {
            flex: 3;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .company-info-sidebar {
            flex: 1;
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 0 15px rgba(0,0,0,0.05);
            height: fit-content;
            position: sticky;
            top: 70px;
        }
        
        /* 产品卡片 */
        .product-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 0 10px rgba(0,0,0,0.08);
            transition: transform 0.3s;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
        }
        
        .product-img {
            height: 180px;
            background: #eee;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #777;
            font-size: 14px;
        }
        
        .product-details {
            padding: 15px;
        }
        
        .product-title {
            font-weight: bold;
            margin-bottom: 8px;
            font-size: 16px;
        }
        
        .product-desc {
            color: #666;
            font-size: 14px;
            margin-bottom: 15px;
        }
        
        .product-price {
            color: #e74c3c;
            font-weight: bold;
        }
        
        /* 公司信息 */
        .company-info h3 {
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
            color: #2c3e50;
        }
        
        .company-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .contact-item i {
            color: #3498db;
            width: 20px;
        }
        
        /* 页脚 */
        .footer {
            background: #2c3e50;
            color: white;
            padding: 40px 0 20px;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .footer-links a {
            color: #ddd;
            text-decoration: none;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .footer-contact {
            text-align: center;
            margin-bottom: 25px;
        }
        
        .footer-address, .footer-copyright {
            text-align: center;
            margin-bottom: 15px;
            color: #bbb;
        }
        
        .footer-keywords {
            text-align: center;
            font-size: 14px;
            color: #999;
            margin-top: 20px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .products {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .header {
                flex-direction: column;
                text-align: center;
                padding: 15px 0;
            }
            
            .logo {
                margin-bottom: 15px;
                justify-content: center;
            }
            
            .company-name {
                margin-right: 0;
                margin-bottom: 15px;
            }
            
            .search-bar {
                width: 100%;
                max-width: none;
            }
            
            .main-content {
                flex-direction: column;
            }
            
            .company-info-sidebar {
                position: static;
                margin-top: 20px;
            }
            
            .products {
                grid-template-columns: 1fr;
            }
        }