/* 优势展示 */
        .advantages {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .advantage-card {
            background-color: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            text-align: center;
        }
        
        .advantage-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .advantage-card h3 {
            color: var(--secondary);
            margin-bottom: 10px;
        }
    .product-card-img1 {            height: 200px;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
}
    .product-card-img2 {            height: 200px;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
}
    .product-card-img3 {            height: 200px;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
}