/* 新闻中心页面样式 - 使用CSS变量 */

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--border-light) 100%);
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
}

.page-header h1 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.page-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* 新闻筛选 */
.filter-section {
    background: var(--bg-primary);
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.filter-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: var(--font-size-md);
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 新闻列表 */
.news-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-primary);
}

.news-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.news-item {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-item.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.news-image {
    position: relative;
    overflow: hidden;
}

.news-item.featured .news-image {
    height: 400px;
}

.news-item:not(.featured) .news-image {
    height: 250px;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.news-item:hover .news-image img {
    transform: scale(1.1);
}

.news-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.news-content {
    padding: var(--spacing-xl);
}

.news-item.featured .news-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.news-meta i {
    color: var(--primary-color);
}

.news-item.featured h2 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.news-item:not(.featured) h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.news-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-normal);
}

.read-more:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.read-more i {
    transition: var(--transition-normal);
}

.read-more:hover i {
    transform: translateX(3px);
}

/* 侧边栏 */
.news-sidebar {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    height: fit-content;
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section h3 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.popular-news {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.popular-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    cursor: pointer;
    transition: box-shadow 0.2s;
}

.popular-item:hover {
    box-shadow: var(--shadow-md);
    background: #fffbe8;
}

.popular-item img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    object-fit: cover;
    flex-shrink: 0;
}

.popular-info {
    flex: 1;
    min-width: 0;
}

.popular-item-info h4 {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.popular-item-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
}

.category-list {
    list-style: none;
    padding: 0;
}

.category-list li {
    margin-bottom: var(--spacing-sm);
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.category-list a:hover {
    background: var(--primary-color);
    color: var(--text-light);
    transform: translateX(5px);
}

.category-count {
    background: var(--accent-color);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: bold;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.page-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    font-weight: 500;
}

.page-btn:hover,
.page-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-container {
        grid-template-columns: 1fr;
    }
    
    .news-item.featured {
        grid-template-columns: 1fr;
    }
    
    .news-item.featured .news-image {
        height: 250px;
    }
    
    .news-item.featured h2 {
        font-size: var(--font-size-xl);
    }
    
    .news-content {
        padding: var(--spacing-lg);
    }
    
    .news-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .page-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .news-item.featured h2 {
        font-size: var(--font-size-lg);
    }
    
    .news-item:not(.featured) h3 {
        font-size: var(--font-size-md);
    }
    
    .news-content {
        padding: var(--spacing-md);
    }
    
    .news-category {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs);
    }
    
    .popular-item {
        flex-direction: column;
        text-align: center;
    }
    
    .popular-item img {
        width: 100%;
        height: 120px;
    }
}

/* 新新闻页面布局优化 */
.news-layout {
    display: flex;
    gap: var(--spacing-xxl);
    align-items: flex-start;
}
.news-main {
    flex: 3;
}
.news-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}
.news-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    position: relative;
}
.news-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px) scale(1.02);
}
.news-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}
.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.news-card:hover .news-card-image img {
    transform: scale(1.08);
}
.news-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: var(--primary-color);
    color: #fff;
    font-size: 13px;
    border-radius: 12px;
    padding: 2px 12px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.news-card-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}
.news-card-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}
.news-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: color 0.2s;
}
.news-title:hover {
    color: var(--primary-color);
    text-decoration: underline;
}
.news-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex: 1;
}
.news-card-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: auto;
}
.read-more-btn {
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: 4px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}
.read-more-btn:hover {
    background: var(--secondary-color);
}
.news-stats {
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 2px;
}
.news-sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}
.popular-news {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}
.popular-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    cursor: pointer;
    transition: box-shadow 0.2s;
}
.popular-item:hover {
    box-shadow: var(--shadow-md);
    background: #fffbe8;
}
.popular-item img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    object-fit: cover;
    flex-shrink: 0;
}
.popular-info h4 {
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 2px;
    font-weight: 600;
}
.popular-date {
    font-size: 12px;
    color: var(--text-secondary);
}
.category-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.category-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 6px 14px;
    font-size: 15px;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.2s;
}
.category-item:hover, .category-item.active {
    background: #f3e9d7;
    color: var(--primary-color);
}
.category-count {
    font-size: 13px;
    color: var(--text-secondary);
}
@media (max-width: 1100px) {
    .news-list {
        grid-template-columns: 1fr;
    }
    .news-layout {
        flex-direction: column;
    }
    .news-sidebar {
        flex-direction: row;
        gap: var(--spacing-lg);
    }
}
@media (max-width: 600px) {
    .news-card-content {
        padding: var(--spacing-md);
    }
    .news-card-image {
        height: 140px;
    }
    .news-title {
        font-size: 16px;
    }
    .news-list {
        gap: var(--spacing-md);
    }
}