/* 产品页面样式 */
.page-header {
    background: linear-gradient(135deg, var(--background-dark), var(--background-medium));
    color: var(--text-primary);
    text-align: center;
    padding: 60px 20px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    font-weight: bold;
    background: linear-gradient(45deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.2em;
    opacity: 0.8;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

/* 产品网格布局 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* 产品卡片样式 */
.product-card {
    background: var(--background-medium);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-dark);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px var(--shadow-dark);
    border-color: var(--primary-color);
}

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: var(--background-light);
    transition: transform 0.3s ease;
}

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

.product-card h3 {
    font-size: 1.3em;
    margin: 20px 20px 10px 20px;
    color: var(--text-primary);
    font-weight: bold;
}

.product-card .price {
    font-size: 1.4em;
    color: var(--secondary-color);
    font-weight: bold;
    margin: 0 20px 10px 20px;
}

.product-card .description {
    color: var(--text-secondary);
    margin: 0 20px 20px 20px;
    line-height: 1.5;
}

.product-card .add-to-cart {
    width: calc(100% - 40px);
    margin: 0 20px 20px 20px;
    padding: 12px;
    background: var(--primary-color);
    color: var(--background-dark);
    border: none;
    border-radius: 6px;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card .add-to-cart:hover {
    background: #00cc6a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
}

/* 导航栏活跃状态 */
header nav ul li a.active {
    background: rgba(0, 255, 136, 0.2);
    border-radius: 4px;
    padding: 8px 12px;
    color: var(--primary-color);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
        gap: 20px;
    }
    
    .page-header {
        padding: 40px 20px;
    }
    
    .page-header h1 {
        font-size: 2.2em;
    }
}