/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Inter", "Microsoft YaHei", Arial, sans-serif;
        }
        
        /* 全局渐变背景 */
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e5e6 100%);
            min-height: 100vh;
        }
        
        /* 页面容器：左右分栏核心布局 */
        .page-container {
            display: flex;
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 30px;
            gap: 30px;
        }
        
        /* 左侧背景文章栏 - 视觉区分 */
        .left-column,
        .right-column {
            flex: 1;
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 12px;
            padding: 35px;
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.7);
        }
        
        /* 栏目标题样式 - 突出主题 */
        .column-header {
            margin-bottom: 25px;
            position: relative;
        }
        
        .column-title {
            font-size: 22px;
            font-weight: 700;
            color: #2c3e50;
            position: relative;
            padding-bottom: 10px;
            display: inline-block;
        }
        
        .column-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            border-radius: 3px;
            transform: scaleX(0.3);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        
        .column-header:hover .column-title::after {
            transform: scaleX(1);
        }
        
        .column-desc {
            font-size: 14px;
            color: #7f8c8d;
            margin-top: 8px;
            opacity: 0.8;
        }
        
        /* 文章列表容器 - 控制间距 */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        /* 单篇文章卡片样式 - 独立视觉单元 */
        .article-card {
            padding: 22px;
            background-color: #fff;
            border-radius: 10px;
            border: 1px solid #f1f1f1;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        
        .article-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: linear-gradient(180deg, #3498db, #2ecc71);
            transition: height 0.3s ease;
        }
        
        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
            border-color: #eaeaea;
        }
        
        .article-card:hover::before {
            height: 100%;
        }
        
        /* 文章标题与内容样式 */
        .article-title {
            font-size: 17px;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 10px;
            transition: color 0.2s ease;
        }
        
        .article-card:hover .article-title {
            color: #3498db;
        }
        
        .article-content {
            font-size: 15px;
            color: #555;
            line-height: 1.7;
            text-align: justify;
            display: -webkit-box;
            -webkit-line-clamp: 4;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .article-card:hover .article-content {
            -webkit-line-clamp: 999;
        }
        
        /* 阅读进度指示 */
        .read-progress {
            height: 4px;
            background-color: #f1f1f1;
            border-radius: 2px;
            margin-top: 12px;
            overflow: hidden;
        }
        
        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            width: 0%;
            transition: width 0.5s ease;
        }
        
        .article-card:hover .progress-bar {
            width: 100%;
        }
        
        /* 响应式适配 - 小屏幕上下堆叠 */
        @media (max-width: 992px) {
            .page-container {
                flex-direction: column;
                padding: 20px;
                gap: 20px;
            }
            
            .left-column,
            .right-column {
                padding: 25px;
            }
            
            .column-title {
                font-size: 20px;
            }
            
            .article-card {
                padding: 18px;
            }
        }