/* 产品页面样式 */
.product-hero {
    position: relative;
    height: 500px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/product/01.png');
    background-position: center;
    background-size: cover;
    opacity: 1;
    z-index: 1;
}

.product-hero .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.product-hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0;
    display: none;
}

.product-categories-section {
    padding: 100px 0;
    background: #f5f5f5;
}

.product-categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.category-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(230,0,18,0.2);
}

.category-card-image {
    height: 280px;
    overflow: hidden;
    position: relative;
}

.category-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.category-card:hover .category-card-image img {
    transform: scale(1.05);
}

.category-card-content {
    padding: 35px 30px;
    border-top: 4px solid #e60012;
}

.category-card-title {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
    text-align: center;
}

.category-card-subtitle {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    text-align: center;
}

@media (max-width: 1024px) {
    .product-categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-hero {
        height: 150px;
    }
    
    .product-hero-title {
        font-size: 36px;
    }
    
    .product-categories-grid {
        grid-template-columns: 1fr;
    }
    
    .product-categories-section {
        padding: 60px 0;
    }
}