/* ==========================================
   新闻模块响应式样式
   版本：1.0.0
   创建日期：2025-02-03
   ========================================== */

/* ==================== 平板端 (768-1199px) ==================== */
@media screen and (max-width: 1199px) {
    /* 页面标题 */
    .page-title {
        font-size: 36px;
    }
    
    .page-subtitle {
        font-size: 16px;
    }
    
    /* 新闻布局 */
    .news-sidebar {
        flex: 0 0 300px;
    }
    
    /* 新闻列表项 */
    .news-item {
        flex-direction: column;
    }
    
    .news-item-image {
        width: 100%;
        height: 200px;
    }
    
    /* 新闻详情 */
    .news-article {
        padding: 30px;
    }
    
    .news-article-title {
        font-size: 24px;
    }
}

/* ==================== 移动端 (≤767px) ==================== */
@media screen and (max-width: 767px) {
    /* 页面标题 */
    .page-header {
        padding: 60px 0;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .page-subtitle {
        font-size: 14px;
    }
    
    /* 新闻布局 */
    .news-section,
    .news-detail-section {
        padding: 40px 0;
    }
    
    .news-layout,
    .news-detail-layout {
        flex-direction: column;
    }
    
    .news-main,
    .news-detail-main {
        flex: 1;
        width: 100%;
    }
    
    .news-sidebar {
        flex: 1;
        width: 100%;
    }
    
    /* 分类按钮 */
    .news-categories {
        flex-direction: column;
    }
    
    .category-btn {
        width: 100%;
        padding: 12px 15px;
        font-size: 15px;
    }
    
    /* 新闻列表项 */
    .news-item {
        padding: 20px;
        gap: 15px;
    }
    
    .news-item-image {
        width: 100%;
        height: 180px;
    }
    
    .news-item-title {
        font-size: 18px;
    }
    
    .news-item-excerpt {
        font-size: 13px;
    }
    
    /* 分页 */
    .news-pagination {
        flex-wrap: wrap;
    }
    
    .pagination-btn {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }
    
    /* 侧边栏 */
    .sidebar-widget {
        padding: 20px;
    }
    
    .widget-title {
        font-size: 16px;
    }
    
    /* 新闻详情 */
    .news-article {
        padding: 25px 20px;
    }
    
    .news-article-title {
        font-size: 22px;
    }
    
    .news-article-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .news-article-content {
        font-size: 15px;
    }
    
    .news-article-content p {
        text-indent: 1.5em;
    }
    
    .news-article-content h3 {
        font-size: 18px;
    }
    
    /* 导航 */
    .news-nav {
        flex-direction: column;
        gap: 10px;
    }
    
    .news-nav-item {
        width: 100%;
    }
    
    .news-nav-item.next {
        text-align: left;
    }
    
    /* 分享按钮 */
    .share-buttons {
        flex-wrap: wrap;
    }
    
    .share-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
}

/* ==================== 小屏手机 (≤480px) ==================== */
@media screen and (max-width: 480px) {
    /* 页面标题 */
    .page-title {
        font-size: 24px;
    }
    
    .page-subtitle {
        font-size: 13px;
    }
    
    /* 新闻列表项 */
    .news-item {
        padding: 15px;
    }
    
    .news-item-image {
        height: 160px;
    }
    
    .news-item-title {
        font-size: 16px;
    }
    
    .news-item-excerpt {
        font-size: 12px;
        -webkit-line-clamp: 3;
    }
    
    .news-item-meta {
        font-size: 12px;
    }
    
    /* 新闻详情 */
    .news-article {
        padding: 20px 15px;
    }
    
    .news-article-title {
        font-size: 20px;
    }
    
    .news-article-content {
        font-size: 14px;
    }
    
    .news-article-content p {
        text-indent: 1.2em;
    }
    
    .news-article-content h3 {
        font-size: 16px;
    }
    
    /* 侧边栏小部件 */
    .sidebar-widget {
        padding: 15px;
    }
    
    .search-input {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .search-btn {
        padding: 10px 15px;
        font-size: 13px;
    }
}

/* ==================== 大屏 (≥1400px) ==================== */
@media screen and (min-width: 1400px) {
    .page-title {
        font-size: 48px;
    }
    
    .news-sidebar {
        flex: 0 0 400px;
    }
    
    .news-article {
        padding: 50px;
    }
    
    .news-article-title {
        font-size: 32px;
    }
    
    .news-article-content {
        font-size: 18px;
    }
}

/* ==================== 打印样式 ==================== */
@media print {
    .page-header,
    .navbar,
    .news-sidebar,
    .news-nav,
    .news-share,
    .back-to-top,
    .site-footer {
        display: none !important;
    }
    
    .news-section,
    .news-detail-section {
        padding: 0;
    }
    
    .news-item {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .news-article {
        page-break-inside: avoid;
        box-shadow: none;
    }
}