/* 响应式设计 */

/* 平板设备 */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .cart-wrapper {
        grid-template-columns: 1fr;
    }

    .cart-summary {
        position: static;
    }

    .product-detail {
        grid-template-columns: 1fr;
    }

    .brand-story-content,
    .brand-story-full {
        grid-template-columns: 1fr;
    }

    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .points-coupons {
        grid-template-columns: 1fr;
    }
}

/* 手机设备 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transition: left 0.3s ease;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .banner-content h2 {
        font-size: 2rem;
    }

    .banner-content p {
        font-size: 1rem;
    }

    .banner-prev,
    .banner-next {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .quick-order-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-quick-order {
        width: 100%;
        max-width: 300px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .category-tabs,
    .store-filters,
    .ranking-tabs {
        flex-wrap: wrap;
    }

    .section-title {
        font-size: 2rem;
    }

    .member-benefits {
        grid-template-columns: 1fr;
    }

    .ingredients-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .stores-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .search-box-wrapper {
        flex-direction: column;
    }

    .ranking-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .ranking-product {
        width: 100%;
    }

    .similar-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 1rem;
        margin: 1rem;
    }

    .toast {
        bottom: 20px;
        right: 20px;
        left: 20px;
        right: 20px;
    }
}

/* 小屏幕手机 */
@media (max-width: 480px) {
    .banner-section {
        height: 400px;
    }

    .banner-content h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 15px;
    }

    .cart-item {
        flex-direction: column;
    }

    .cart-item-image {
        width: 100%;
        height: 200px;
    }

    .custom-options {
        flex-direction: column;
    }

    .option-label {
        width: 100%;
    }
}