/* 自定义样式 */
        :root {
            --primary-color: #1e88e5;
            --secondary-color: #f8f9fa;
            --text-color: #333;
            --light-text: #777;
        }
        
        body {
            font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
            color: var(--text-color);
            line-height: 1.6;
        }
        
        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
        }
        
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://picsum.photos/1920/600') no-repeat center center;
            background-size: cover;
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        
        .quick-links {
            padding: 40px 0;
            background-color: var(--secondary-color);
        }
        
        .quick-link-item {
            text-align: center;
            padding: 20px;
            transition: all 0.3s;
        }
        
        .quick-link-item:hover {
            transform: translateY(-5px);
        }
        
        .quick-link-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 30px;
            text-align: center;
        }
        
        .section-title:after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--primary-color);
        }
        
        .product-card {
            margin-bottom: 30px;
            transition: all 0.3s;
            border: none;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        }
        
        .product-img {
            height: 200px;
            object-fit: cover;
        }
        
        .news-item {
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .news-item:last-child {
            border-bottom: none;
        }
        
        .news-date {
            color: var(--light-text);
            font-size: 0.9rem;
        }
        
        .contact-info {
            background-color: var(--secondary-color);
            padding: 40px 0;
        }
        
        .contact-icon {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-right: 10px;
        }
        
        footer {
            background-color: #343a40;
            color: white;
            padding: 30px 0;
        }
        
        /* 移动端特定样式 */
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            
            .quick-link-item {
                margin-bottom: 20px;
            }
            
            .navbar-brand {
                font-size: 1.2rem;
            }
        }