/* Responsive Styles */

/* 平板端 (768px - 1199px) */
@media (max-width: 1199px) {
    .main-content {
        max-width: 100%;
    }
    
    .sidebar-categories {
        width: 180px;
    }
    
    .sidebar-right {
        width: 240px;
    }
    
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 移动端 (<768px) */
@media (max-width: 767px) {
    body {
        padding-top: 110px;
    }
    
    /* 主内容区域 */
    .main-content {
        flex-direction: column;
        padding: var(--spacing-sm);
    }
    
    .sidebar-categories {
        width: 100%;
    }
    
    .category-menu {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .category-item {
        border-bottom: none;
        border-right: 1px solid var(--border-color);
        flex-shrink: 0;
    }
    
    .category-item:last-child {
        border-right: none;
    }
    
    .category-item a {
        white-space: nowrap;
    }
    
    /* 顶部导航栏 */
    .top-nav .container {
        flex-wrap: wrap;
    }
    
    .logo {
        order: 1;
    }
    
    .user-actions {
        order: 2;
    }
    
    .search-box {
        order: 3;
        width: 100%;
        max-width: 100%;
        margin-top: var(--spacing-sm);
    }
    
    /* 主导航菜单 */
    .main-nav .container {
        gap: var(--spacing-md);
        overflow-x: auto;
        justify-content: flex-start;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-item {
        white-space: nowrap;
        padding: var(--spacing-sm) 0;
    }
    
    /* 轮播图 */
    .carousel-container {
        height: 250px;
    }
    
    .carousel-btn {
        padding: var(--spacing-sm);
        font-size: 1.5rem;
    }
    
    /* 商品网格 */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .product-image {
        height: 180px;
    }
    
    .product-title {
        font-size: 0.85rem;
        height: 45px;
    }
    
    .product-price {
        font-size: 1.1rem;
    }
    
    .product-sales {
        font-size: 0.8rem;
    }
    
    /* 页面底部 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    /* 确保触摸目标至少44x44px */
    .nav-item,
    .user-actions a,
    .search-box button,
    .carousel-btn,
    .dot {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* 小屏幕移动端 (<480px) */
@media (max-width: 479px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo a {
        font-size: 1.25rem;
    }
    
    .carousel-container {
        height: 200px;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
}