/* 频道列表页通用样式 */

/* 频道头部 */
.channel-header {
    padding: 80px 0 40px;
    margin-top: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.channel-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.channel-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.channel-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

.channel-text h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.channel-text p {
    font-size: 16px;
    opacity: 0.9;
}

.channel-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 28px;
    font-weight: 700;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

/* 频道内容区域 */
.channel-content {
    padding: 40px 0 60px;
    background: var(--gray-lighter);
    min-height: 60vh;
}

/* 子分类导航 */
.category-nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.category-item {
    padding: 10px 20px;
    background: var(--gray-lighter);
    color: var(--dark-light);
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.category-item:hover {
    background: var(--primary);
    color: white;
}

.category-item.active {
    background: var(--primary);
    color: white;
}

/* 筛选栏 */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.filter-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-label {
    font-size: 14px;
    color: var(--gray);
}

.filter-select {
    padding: 8px 16px;
    border: 1px solid var(--gray-light);
    border-radius: 6px;
    font-size: 14px;
    color: var(--dark);
    cursor: pointer;
    outline: none;
}

.filter-select:focus {
    border-color: var(--primary);
}

.article-count {
    font-size: 14px;
    color: var(--gray);
}

/* 文章网格 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

@media (max-width: 1024px) {
    .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .article-grid {
        grid-template-columns: 1fr;
    }
}

/* 文章卡片 */
.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

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

.card-cover {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
    overflow: hidden;
}

.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 12px;
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
}

.card-body {
    padding: 20px;
}

.card-body h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-body p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--gray-light);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.page-btn {
    padding: 10px 16px;
    background: var(--white);
    color: var(--dark);
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.page-btn:hover {
    background: var(--primary);
    color: white;
}

.page-btn.active {
    background: var(--primary);
    color: white;
}

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

.page-ellipsis {
    padding: 10px;
    color: var(--gray);
}

/* 响应式 */
@media (max-width: 768px) {
    .channel-header {
        padding: 60px 0 30px;
    }
    
    .channel-info {
        flex-direction: column;
        text-align: center;
    }
    
    .channel-stats {
        justify-content: center;
        width: 100%;
    }
    
    .channel-text h1 {
        font-size: 24px;
    }
    
    .category-nav {
        padding: 16px;
    }
    
    .category-item {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .filter-bar {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}