/* 页面标题区 */
        .article-header {
            background-color: #F9FAFB;
            padding: 120px 0 60px;
        }
        
        .article-header-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .article-category {
            font-size: 0.9rem;
            font-weight: 600;
            color: #0EA5E9;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1rem;
        }
        
        .article-title {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }
        
        @media (max-width: 768px) {
            .article-title {
                font-size: 2rem;
            }
        }
        
        .article-excerpt {
            font-size: 1.2rem;
            color: #6B7280;
            margin-bottom: 2rem;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #E5E7EB;
        }
        
        .author-info {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 1rem;
        }
        
        .author-name {
            font-weight: 600;
            margin-bottom: 0.2rem;
        }
        
        .author-title {
            color: #6B7280;
            font-size: 0.9rem;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            color: #6B7280;
        }
        
        .meta-item i {
            margin-right: 0.5rem;
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            background-color: transparent;
            padding: 0;
            margin-bottom: 2rem;
        }
        
        .breadcrumb-item a {
            color: #6B7280;
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: #1E3A8A;
        }
        
        /* 主要内容区 */
        .article-content {
            padding: 0;
        }
        
        .article-body {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .article-body h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 3rem 0 1.5rem;
            color: #1E3A8A;
        }
        
        .article-body h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 2.5rem 0 1rem;
            color: var(--dark-gray);
        }
        
        .article-body p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .article-body ul, .article-body ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        
        .article-body li {
            margin-bottom: 0.8rem;
            line-height: 1.6;
        }
        
        .article-body blockquote {
            border-left: 4px solid #0EA5E9;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            background-color: #F9FAFB;
            font-style: italic;
            font-size: 1.2rem;
            color: #6B7280;
        }
        
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem;
        }
        
        .article-body .img-caption {
            text-align: center;
            color: #6B7280;
            font-size: 0.9rem;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        
        /* 文章特色图 */
        .featured-image {
            width: 100%;
            height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 3rem;
        }
        
        @media (max-width: 768px) {
            .featured-image {
                height: 300px;
            }
        }
        
        /* 侧边栏 */
        .sidebar {
            position: sticky;
            top: 100px;
        }
        
        .sidebar-card {
            background-color: white;
            border: 1px solid #E5E7EB;
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        
        .sidebar-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: #1E3A8A;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #F9FAFB;
        }
        
        /* 目录导航 */
        .toc {
            position: sticky;
            top: 120px;
        }
        
        .toc-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .toc-item {
            margin-bottom: 0.8rem;
        }
        
        .toc-link {
            color: var(--dark-gray);
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            display: block;
            transition: all 0.2s;
        }
        
        .toc-link:hover, .toc-link.active {
            background-color: #F9FAFB;
            color: #1E3A8A;
        }
        
        .toc-subitem {
            margin-left: 1.5rem;
            margin-top: 0.5rem;
        }
        
        /* 文章操作 */
        .article-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 3rem 0;
            padding: 2rem 0;
            border-top: 1px solid #E5E7EB;
            border-bottom: 1px solid #E5E7EB;
        }
        
        .action-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: #F9FAFB;
            color: #6B7280;
            border: none;
            transition: all 0.2s;
        }
        
        .action-btn:hover {
            background-color: #1E3A8A;
            color: white;
        }
        
        /* 标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 2rem 0;
        }
        
        .tag {
            background-color: #F9FAFB;
            color: #6B7280;
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all 0.2s;
        }
        
        .tag:hover {
            background-color: #0EA5E9;
            color: white;
        }
        
        /* 作者卡片 */
        .author-card {
            background-color: #F9FAFB;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
        }
        
        .author-card-content {
            display: flex;
            align-items: center;
        }
        
        @media (max-width: 768px) {
            .author-card-content {
                flex-direction: column;
                text-align: center;
            }
        }
        
        .author-card-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 2rem;
        }
        
        @media (max-width: 768px) {
            .author-card-avatar {
                margin-right: 0;
                margin-bottom: 1.5rem;
            }
        }
        
        .author-card-name {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .author-card-bio {
            color: #6B7280;
            margin-bottom: 1rem;
        }
        
        /* 相关文章 */
        .related-articles {
            padding: 5rem 0;
            background-color: #F9FAFB;
        }
        
        .related-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: #1E3A8A;
            text-align: center;
        }
        
        .related-card {
            background-color: white;
            border: 1px solid #E5E7EB;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s;
            height: 100%;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
            border-color: #0EA5E9;
        }
        
        .related-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        
        .related-body {
            padding: 1.5rem;
        }
        
        .related-category {
            font-size: 0.85rem;
            font-weight: 600;
            color: #0EA5E9;
            margin-bottom: 0.8rem;
            display: inline-block;
        }
        
        .related-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        
        .related-card-title a {
            color: var(--dark-gray);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .related-card-title a:hover {
            color: #1E3A8A;
        }
        
        /* 评论区域 */
        .comments-section {
            padding: 5rem 0;
        }
        
        .comments-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: #1E3A8A;
        }
        
        .comment-form {
            background-color: #F9FAFB;
            border-radius: 10px;
            padding: 2rem;
            margin-bottom: 3rem;
        }
        
        .comment {
            border-bottom: 1px solid #E5E7EB;
            padding: 2rem 0;
        }
        
        .comment:last-child {
            border-bottom: none;
        }
        
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }
        
        .comment-author {
            display: flex;
            align-items: center;
        }
        
        .comment-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 1rem;
        }
        
        /* CTA区域 */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, #1E3A8A, #0EA5E9);
            color: white;
        }
        
        .cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: center;
        }
        
        /* 按钮样式 */
        .btn-primary {
            background-color: #1E3A8A;
            border-color: #1E3A8A;
            padding: 0.75rem 2rem;
            font-weight: 500;
            border-radius: 8px;
        }
        
        .btn-primary:hover {
            background-color: #1e3a8ae6;
            border-color: #1e3a8ae6;
        }
        
        .btn-outline-light {
            border-radius: 8px;
            padding: 0.75rem 2rem;
            font-weight: 500;
        }
        
       
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .sidebar {
                margin-top: 3rem;
            }
        }
        
        /* 打印样式 */
        @media print {
            .navbar, .sidebar, .article-actions, .cta-section, .footer {
                display: none;
            }
            
            .article-header {
                margin-top: 0;
                padding: 2rem 0;
            }
            
            .article-content {
                padding: 0;
            }
        }