:root {
            --primary-color: #1a3a6d;
            --secondary-color: #2e5aa7;
            --light-bg: #f5f7fa;
            --card-bg: #ffffff;
            --text-dark: #333333;
            --text-medium: #555555;
            --text-light: #777777;
            --border-color: #e1e5eb;
            --hover-color: #f0f5ff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            font-size: 18px;
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            margin-top:100px;
        }
        
        .article-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            margin: 0 auto;
            overflow: hidden;
            max-width: 1400px;
        }
        
        .article-content {
            max-width: 940px;
            margin: 0 auto;
            padding: 60px 20px;
        }
        
        .article-header {
            margin-bottom: 40px;
            padding-bottom: 30px;
            border-bottom: 1px solid #eee;
            position: relative;
        }
        
        .article-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        
        .article-date {
            display: flex;
            align-items: center;
            color: #3498db;
            font-weight: 600;
        }
        
        .article-date i {
            margin-right: 10px;
            font-size: 1.2rem;
        }
        
        .article-share {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .share-label {
            color: #7f8c8d;
            font-weight: 600;
        }
        
        .share-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #f5f7fa;
            color: #3498db;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .share-icons a:hover {
            transform: translateY(-3px);
            background: #3498db;
            color: white;
        }
        
        .article-image {
            height: 500px;
            border-radius: 10px;
            overflow: hidden;
            margin: 40px 0;
            position: relative;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .image-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 15px 20px;
            font-size: 0.9rem;
        }
        
        .article-body {
            margin: 50px 0;
        }
        
        .article-body p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            color: #333;
            line-height: 1.8;
        }
        
        .article-body img {
            max-width:100%;
        }
        
        .article-body h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        
        .article-body blockquote {
            border-left: 4px solid #3498db;
            background: #f9fbfd;
            padding: 20px 30px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #555;
        }
        
        .article-navigation {
            display: flex;
            justify-content: space-between;
            margin: 50px 0 30px;
            padding-top: 30px;
            border-top: 1px solid #eee;
        }
        
        .back-to-list {
            text-align: center;
            margin: 30px 0 50px;
        }
        
        .back-btn {
            display: inline-flex;
            align-items: center;
            text-decoration: none;
            color: white;
            font-weight: 600;
            padding: 15px 35px;
            border-radius: 30px;
            background: #2c3e50;
            transition: all 0.3s ease;
        }
        
        .back-btn:hover {
            background: #3498db;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
        }
        
        .back-btn i {
            margin-right: 10px;
        }
        

        .related-articles {
            margin: 60px 0 30px;
        }
        
        .section-title {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-bottom: 30px;
            position: relative;
            padding-bottom: 15px;
        }
        
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        
        .related-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        
        .related-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .related-content {
            padding: 20px;
        }
        
        .related-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        
        .related-date {
            color: #7f8c8d;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
        }
        
        .related-date i {
            margin-right: 8px;
        }
        

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .article-title {
                font-size: 2.4rem;
            }
            
            .article-image {
                height: 400px;
            }
        }
        
        @media (max-width: 992px) {
            .article-title {
                font-size: 2rem;
            }
            
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
        }
        
        @media (max-width: 768px) {
            .article-title {
                font-size: 1.8rem;
            }
            
            .article-image {
                height: 300px;
            }
            
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .article-share {
                width: 100%;
                justify-content: space-between;
                margin-top: 20px;
                padding-top: 20px;
                border-top: 1px solid #f0f0f0;
            }
            
            .article-navigation {
                flex-direction: column;
                gap: 20px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {

            .article-title {
                font-size: 1.6rem;
            }
            
            .article-content {
                padding: 40px 15px;
            }
            
            .article-image {
                height: 250px;
                margin: 20px 0;
            }
            
        }