/* 主内容区域 */
        .sciences-container {
            width: 100%;
            max-width: 1200px;
            margin: 120px auto 20px;
            padding: 0 15px;
        }
        
        .page-title {
            font-size: 28px;
            margin-bottom: 30px;
            color: #1a4b8c;
            text-align: center;
            position: relative;
        }
        
        .page-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 3px;
            background-color: #ffd700;
            margin: 10px auto;
        }
        
        .section-title {
            font-size: 24px;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #1a4b8c;
            color: #1a4b8c;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: #ffd700;
        }
        
        /* 科普列表样式 */
        .sciences-list {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .sciences-item {
            display: flex;
            padding: 20px;
            border-bottom: 1px solid #eee;
            transition: background-color 0.3s;
        }
        
        .sciences-item:last-child {
            border-bottom: none;
        }
        
        .sciences-item:hover {
            background-color: #f9f9f9;
        }
        
        .sciences-item.active {
            background-color: #eaf2ff;
        }
        
        .sciences-thumb {
            width: 120px;
            height: 90px;
            margin-right: 20px;
            border-radius: 6px;
            overflow: hidden;
            flex-shrink: 0;
        }
        
        .sciences-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .sciences-content {
            flex-grow: 1;
        }
        
        .sciences-title {
            font-size: 18px;
            margin-bottom: 8px;
            color: #1a4b8c;
        }
        
        .sciences-desc {
            color: #666;
            font-size: 14px;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .sciences-meta {
            display: flex;
            color: #999;
            font-size: 12px;
        }
        
        .sciences-meta span {
            margin-right: 15px;
        }
        
        
        /* 详情页样式 */
        .science-detail {
            background-color: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .detail-header {
            margin-bottom: 30px;
        }
        
        .detail-title {
            font-size: 24px;
            margin-bottom: 15px;
            color: #1a4b8c;
        }
        
        .detail-meta {
            display: flex;
            color: #888;
            font-size: 14px;
            margin-bottom: 20px;
        }
        
        .detail-meta span {
            margin-right: 20px;
        }
        
        .detail-summary {
            background-color: #f9f9f9;
            padding: 15px;
            border-radius: 6px;
            margin-bottom: 30px;
            font-size: 15px;
            line-height: 1.7;
        }
        
        .detail-content {
            line-height: 1.8;
            font-size: 16px;
        }
        
        .detail-content p {
            margin-bottom: 20px;
        }
        
        .detail-content h3 {
            margin: 30px 0 15px;
            color: #1a4b8c;
        }
        
        .detail-content img {
            max-width: 100%;
            border-radius: 8px;
            margin: 20px 0;
        }
        
        .detail-content ul, .detail-content ol {
            padding-left: 25px;
            margin-bottom: 20px;
        }
        
        .detail-content li {
            margin-bottom: 10px;
        }
        
        .file-attachments {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        
        .attachment-item {
            display: flex;
            align-items: center;
            padding: 10px 0;
        }
        
        .attachment-item i {
            color: #1a4b8c;
            margin-right: 10px;
        }
        
        .attachment-name {
            flex-grow: 1;
            font-size: 14px;
        }
        
        .attachment-size {
            color: #888;
            font-size: 14px;
            margin-right: 10px;
        }
        
        .btn {
            padding: 8px 20px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
        }
        
        .btn-primary {
            background-color: #1a4b8c;
            color: white;
        }
        
        .btn-primary:hover {
            background-color: #153a6d;
        }
        
        .btn-secondary {
            background-color: #6c757d;
            color: white;
        }
        
        .btn-secondary i {
            color: white;
        }
        
        .btn-secondary:hover {
            background-color: #5a6268;
        }
        
        /* 相关资讯 */
        .related-news {
            background-color: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .related-title {
            font-size: 20px;
            font-weight: bold;
            color: #1a4b8c;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }

        .related-list {
            display: flex;
            flex-wrap: wrap;
        }

        .related-item {
            width: 33.333%;
            padding: 0 15px;
            margin-bottom: 20px;
        }

        .related-item-title {
            font-size: 14px;
            color: #1a4b8c;
            margin-bottom: 5px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .related-item-date {
            font-size: 12px;
            color: #999;
        }
        
        
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .sciences-item {
                flex-direction: column;
            }
            
            .sciences-thumb {
                width: 100%;
                height: 180px;
                margin-bottom: 15px;
            }
            
            .sciences-actions {
                margin-left: 0;
                margin-top: 15px;
            }
        }