* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
                    "Helvetica Neue", Arial, sans-serif;
        color: #333;
        background-color: #f8f9fa;
        line-height: 1.6;
        text-rendering: optimizeLegibility;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        padding-bottom: 40px;
    }
    
    /* 文章内容样式 */
    .article-content p,
    .excerpt {
        hyphens: auto;
        -webkit-hyphens: auto;
        -ms-hyphens: auto;
        word-spacing: 0.05em;
        text-align: left;
        margin-bottom: 1.2em;
        text-indent: 0;
    }
    
    .article-content h1,
    .article-content h2,
    .article-content h3,
    .article-content h4,
    .article-content h5,
    .article-content h6,
    .page-header h1,
    .card-content h3 {
        letter-spacing: -0.015em;
        font-weight: 600;
        margin-bottom: 0.6em;
        line-height: 1.25;
    }
    
    .article-content h1 {
        font-size: 2.2rem;
        padding-bottom: 0.3em;
        border-bottom: 1px solid #eaecef;
        margin: 1.5em 0 0.8em;
    }
    
    .article-content h2 {
        font-size: 1.8rem;
        margin: 1.5em 0 0.8em;
    }
    
    .article-content h3 {
        font-size: 1.5rem;
        color: #0b5ed7;
        margin: 1.5em 0 0.8em;
    }
    
    .article-content img {
        max-width: 100%;
        height: auto;
        margin: 1.5em 0;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    
    .article-content :lang(en) q {
        quotes: "“" "”" "‘" "’";
    }
    
    /* 分类导航样式 */
    .category-nav {
        margin: 40px 0 30px;
        background: white;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        padding: 20px 0;
    }
    
    .category-title {
        font-weight: 600;
        color: #0d6efd;
        font-size: 1.2rem;
        margin: 0 15px 15px;
        border-left: 4px solid #0d6efd;
        padding-left: 12px;
    }
    
    .category-list {
        display: flex;
        flex-wrap: wrap;
        padding: 0 10px;
    }
    
    .category-item {
        flex: 0 0 25%;
        padding: 8px 5px;
        text-align: center;
        min-width: 120px;
    }
    
    .category-link {
        display: block;
        padding: 12px 10px;
        background: #f1f8ff;
        border-radius: 6px;
        text-decoration: none;
        color: #495057;
        font-weight: 500;
        transition: all 0.3s ease;
        height: 100%;
    }
    
    .category-link:hover {
        background: #0d6efd;
        color: white;
        transform: translateY(-3px);
        box-shadow: 0 4px 12px rgba(13, 110, 253, 0.25);
    }
    
    /* 布局样式 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }
    
    .article-header,
    .page-header {
        margin: 40px 0 30px;
    }
    
    .article-header {
        text-align: left;
    }
    
    .page-header {
        text-align: center;
    }
    
    .article-meta,
    .page-description {
        color: #6c757d;
        font-size: 0.95rem;
        margin-top: 15px;
    }
    
    .page-description {
        font-size: 1.1rem;
        max-width: 800px;
        margin: 0 auto;
    }
    
    .article-content {
        padding: 30px;
        background: white;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }
    
    /* 文章列表样式 */
    .article-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 30px;
        margin: 40px 0;
    }
    
    .article-card {
        background: white;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        transition: transform 0.3s, box-shadow 0.3s;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    
    .article-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
    }
    
    .card-image {
        height: 200px;
        overflow: hidden;
    }
    
    .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s;
    }
    
    .article-card:hover .card-image img {
        transform: scale(1.05);
    }
    
    .card-content {
        padding: 25px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    
    .card-content h3 {
        margin-top: 0;
        color: #212529;
        font-size: 1.4rem;
    }
    
    .card-content .excerpt {
        flex: 1;
        color: #495057;
        margin-bottom: 20px;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
    }
    
    .card-meta {
        display: flex;
        justify-content: space-between;
        color: #6c757d;
        font-size: 0.9rem;
        padding-top: 15px;
        border-top: 1px solid #e9ecef;
    }
    
    .read-more {
        color: #0d6efd;
        font-weight: 500;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
    }
    
    .read-more:hover {
        color: #0b5ed7;
        text-decoration: underline;
    }
    
    .read-more i {
        margin-left: 5px;
        transition: transform 0.3s;
    }
    
    .read-more:hover i {
        transform: translateX(3px);
    }
    
    /* 分页样式 */
    .pagination {
        margin-top: 50px;
        display: flex;
        justify-content: center;
    }
    
    /* 页脚样式 */
    .footer {
        text-align: center;
        margin-top: 60px;
        color: #6c757d;
        padding: 30px 0;
        border-top: 1px solid #e9ecef;
    }
    
    .footer p {
        margin-bottom: 10px;
    }
    
    .social-links {
        margin-top: 15px;
    }
    
    .social-links a {
        display: inline-block;
        width: 40px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        border-radius: 50%;
        background: #e9ecef;
        color: #495057;
        margin: 0 8px;
        transition: all 0.3s;
    }
    
    .social-links a:hover {
        background: #0d6efd;
        color: white;
        transform: translateY(-3px);
    }
    
    /* 移动端响应式 */
    @media (max-width: 991px) {
        .category-item {
            flex: 0 0 33.333%;
        }
    }
    
    @media (max-width: 768px) {
        .article-content {
            padding: 20px;
        }
        
        .article-content h1 {
            font-size: 1.8rem;
        }
        
        .article-content h2 {
            font-size: 1.5rem;
        }
        
        .page-header h1 {
            font-size: 2rem;
        }
        
        .article-grid {
            gap: 20px;
        }
        
        .category-item {
            flex: 0 0 50%;
        }
    }
    
    @media (max-width: 480px) {
        .category-item {
            flex: 0 0 100%;
        }
        
        .article-content {
            padding: 15px;
        }
        
        .article-grid {
            grid-template-columns: 1fr;
        }
        
        .card-content {
            padding: 20px;
        }
        
        .article-content p, 
        .article-content h1, 
        .article-content h2, 
        .article-content h3 {
            line-height: 1.5;
        }
    }