/* 商品页面专用样式 */

/* 面包屑导航 */
.breadcrumb {
    background: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: #666;
}

/* 商品页面布局 */
.products-page {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
    margin-top: 30px;
}

/* 侧边栏 */
.sidebar {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    height: fit-content;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 100px;
}

.filter-section {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
}

.filter-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.filter-section h3 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
}

.filter-section ul {
    list-style: none;
}

.filter-section li {
    margin-bottom: 8px;
}

.filter-section a {
    color: #666;
    text-decoration: none;
    padding: 5px 0;
    display: block;
    transition: color 0.3s ease;
}

.filter-section a:hover,
.filter-section a.active {
    color: #667eea;
    font-weight: 500;
}

.filter-section label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.filter-section label:hover {
    color: #333;
}

.filter-section input[type="checkbox"] {
    accent-color: #667eea;
}

/* 商品内容区域 */
.products-content {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* 工具栏 */
.products-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
    flex-wrap: wrap;
    gap: 15px;
}

.results-info {
    color: #666;
}

.results-info strong {
    color: #333;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options label {
    color: #666;
    font-weight: 500;
}

.sort-options select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #333;
    cursor: pointer;
}

.view-options {
    display: flex;
    gap: 5px;
}

.view-grid,
.view-list {
    background: none;
    border: 1px solid #ddd;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-grid.active,
.view-list.active {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

/* 商品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

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

.products-grid.list-view .product-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 20px;
}

.products-grid.list-view .product-card img {
    height: 150px;
}

/* 商品卡片 */
.product-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid #f0f0f0;
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    border-color: #667eea;
}

.product-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
    z-index: 2;
}

.product-badge.new {
    background: #2ecc71;
}

.product-badge.discount {
    background: #e74c3c;
}

.product-badge.popular {
    background: #f39c12;
}

.product-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
    line-height: 1.4;
}

.product-desc {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.stars {
    color: #ffc107;
    font-size: 14px;
}

.rating-text {
    color: #999;
    font-size: 12px;
}

.product-price {
    margin-bottom: 15px;
}

.current-price {
    font-size: 20px;
    font-weight: bold;
    color: #e74c3c;
}

.original-price {
    font-size: 14px;
    color: #999;
    text-decoration: line-through;
    margin-left: 8px;
}

.product-actions {
    display: flex;
    gap: 10px;
}

.add-to-cart {
    flex: 1;
    background: #667eea;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.add-to-cart:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.view-detail {
    padding: 10px 15px;
    background: transparent;
    color: #667eea;
    border: 1px solid #667eea;
    border-radius: 6px;
    text-decoration: none;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
}

.view-detail:hover {
    background: #667eea;
    color: #fff;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.page-btn {
    padding: 10px 15px;
    border: 1px solid #ddd;
    background: #fff;
    color: #333;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover:not(:disabled) {
    background: #f8f9fa;
    border-color: #667eea;
}

.page-btn.active {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-dots {
    color: #999;
    padding: 0 5px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.empty-state img {
    width: 120px;
    height: 120px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.empty-state p {
    margin-bottom: 20px;
}

.empty-state button {
    background: #667eea;
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 40px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .products-page {
        grid-template-columns: 200px 1fr;
        gap: 20px;
    }
    
    .sidebar {
        padding: 15px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .products-page {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .sidebar {
        position: static;
        order: 2;
        margin-top: 20px;
    }
    
    .products-content {
        order: 1;
    }
    
    .products-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .products-grid.list-view .product-card {
        grid-template-columns: 1fr;
    }
    
    .products-grid.list-view .product-card img {
        height: 200px;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .page-btn {
        padding: 8px 12px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card {
        margin: 0 auto;
        max-width: 350px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .view-detail {
        text-align: center;
    }
}

/* 筛选器折叠功能（移动端） */
@media (max-width: 768px) {
    .sidebar {
        background: transparent;
        box-shadow: none;
        padding: 0;
    }
    
    .filter-toggle {
        background: #667eea;
        color: #fff;
        border: none;
        padding: 12px 20px;
        border-radius: 6px;
        cursor: pointer;
        width: 100%;
        margin-bottom: 15px;
        font-weight: 500;
    }
    
    .filters-content {
        background: #fff;
        border-radius: 12px;
        padding: 20px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        display: none;
    }
    
    .filters-content.active {
        display: block;
    }
}