/* 响应式设计 */

/* 平板设备 (768px - 992px) */
@media (max-width: 992px) {
    .content-with-sidebar {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .featured-content h2 {
        font-size: 28px;
    }

    .list-article {
        flex-direction: column;
    }

    .list-article-image {
        width: 100%;
        height: 200px;
    }

    .article-detail {
        padding: 30px;
    }

    .article-header h1 {
        font-size: 28px;
    }

    .article-featured-image img {
        height: 300px;
    }

    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

/* 移动设备 (576px - 768px) */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    nav {
        width: 100%;
        order: 3;
        margin-top: 15px;
        display: none;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
    }

    nav li {
        margin: 0;
        padding: 10px 0;
        border-bottom: 1px solid #eee;
    }

    .mobile-menu-btn {
        display: block;
    }

    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-header .section-title {
        font-size: 20px;
    }

    .featured-section {
        padding: 20px 0;
    }

    .featured-item img {
        height: 300px;
    }

    .featured-content {
        padding: 20px;
    }

    .featured-content h2 {
        font-size: 24px;
    }

    .article-detail {
        padding: 20px;
    }

    .article-header h1 {
        font-size: 24px;
    }

    .article-meta {
        flex-wrap: wrap;
    }

    .article-featured-image img {
        height: 250px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .article-navigation {
        flex-direction: column;
        gap: 15px;
    }
}

/* 小屏移动设备 (< 576px) */
@media (max-width: 576px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 15px;
    }

    .featured-item img {
        height: 250px;
    }

    .featured-content h2 {
        font-size: 20px;
    }

    .article-detail {
        padding: 15px;
    }

    .article-header h1 {
        font-size: 22px;
    }

    .article-featured-image img {
        height: 200px;
    }

    .article-content h2 {
        font-size: 20px;
    }

    .pagination a {
        padding: 8px 12px;
        margin: 0 3px;
        font-size: 14px;
    }
}