/* 专题详情页面样式 */

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 0;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.breadcrumb a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: #4f46e5;
}

.breadcrumb span:not(.current) {
    color: #d1d5db;
}

.breadcrumb .current {
    color: #1f2937;
    font-weight: 500;
}

/* 专题头部 */
.collection-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 50px 40px;
    border-radius: 16px;
    margin-bottom: 40px;
    text-align: center;
}

.collection-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    line-height: 1.3;
}

.collection-description {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 25px;
    line-height: 1.7;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.collection-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    opacity: 0.9;
}

.meta-item svg {
    opacity: 0.8;
}

/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.product-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.product-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f9fafb;
}

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

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

.product-content {
    padding: 20px;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 10px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-operator {
    display: inline-block;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.product-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.feature-tag {
    background: #fef3c7;
    color: #92400e;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.product-action {
    padding-top: 15px;
    border-top: 1px solid #f3f4f6;
}

.btn-view {
    display: inline-block;
    color: #4f46e5;
    font-weight: 600;
    font-size: 0.95rem;
}

.product-card:hover .btn-view {
    color: #7c3aed;
}

/* 分页导航 */
.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin: 50px 0;
    padding: 30px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.pagination-numbers {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.pagination-link {
    padding: 10px 18px;
    border-radius: 8px;
    background: white;
    border: 1px solid #e5e7eb;
    color: #4b5563;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    min-width: 44px;
    text-align: center;
}

.pagination-link:hover {
    background: #f9fafb;
    border-color: #4f46e5;
    color: #4f46e5;
    transform: translateY(-2px);
}

.pagination-current {
    padding: 10px 18px;
    border-radius: 8px;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    font-weight: 600;
    min-width: 44px;
    text-align: center;
}

.pagination-ellipsis {
    padding: 10px 8px;
    color: #9ca3af;
}

.pagination-info {
    color: #6b7280;
    font-size: 0.95rem;
    text-align: center;
    padding-top: 10px;
    border-top: 1px solid #f3f4f6;
    width: 100%;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-state p {
    color: #6b7280;
    font-size: 1.1rem;
    margin-bottom: 25px;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

/* SEO内容区域 */
.seo-content-section {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e5e7eb;
    margin-top: 50px;
}

.seo-content-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f3f4f6;
}

.seo-content-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #374151;
    margin: 30px 0 15px 0;
}

.seo-content-section p {
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 20px;
}

.keywords-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
}

.keyword-tag {
    background: #f3f4f6;
    color: #4b5563;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.back-link {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.back-link a {
    color: #4f46e5;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.back-link a:hover {
    color: #7c3aed;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .collection-hero {
        padding: 40px 25px;
    }
    
    .collection-title {
        font-size: 2rem;
    }
    
    .collection-description {
        font-size: 1.1rem;
    }
    
    .collection-meta {
        gap: 20px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .seo-content-section {
        padding: 25px 20px;
    }
    
    .seo-content-section h2 {
        font-size: 1.5rem;
    }
    
    .seo-content-section h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .collection-title {
        font-size: 1.75rem;
    }
    
    .collection-description {
        font-size: 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-content {
        padding: 15px;
    }
}