body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        h1, h2, h3, h4, h5, h6 {
            color: #2c3e50;
            margin-top: 24px;
            margin-bottom: 16px;
        }
        a {
            color: #0366d6;
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }
        code {
            background-color: #f6f8fa;
            border-radius: 3px;
            font-family: Consolas, monospace;
            padding: 0.2em 0.4em;
        }
        pre {
            background-color: #f6f8fa;
            border-radius: 3px;
            padding: 16px;
            overflow: auto;
        }
        table {
            border-collapse: collapse;
            width: 100%;
        }
        th, td {
            border: 1px solid #dfe2e5;
            padding: 8px 12px;
        }
        th {
            background-color: #f6f8fa;
        }
        img {
            max-width: 100%;
        }
        blockquote {
            border-left: 4px solid #dfe2e5;
            color: #6a737d;
            margin: 0;
            padding: 0 16px;
        }
        hr {
            height: 0.25em;
            background-color: #e1e4e8;
            border: 0;
        }
        .container {
            display: flex;
            flex-wrap: wrap;
        }
        .sidebar {
            flex: 0 0 250px;
            padding-right: 20px;
            position: sticky;
            top: 20px;
            max-height: calc(100vh - 40px);
            overflow-y: auto;
        }
        .content {
            flex: 1;
            min-width: 0;
        }
        @media (max-width: 768px) {
            .container {
                flex-direction: column;
            }
            .sidebar {
                flex: 0 0 auto;
                position: static;
                max-height: none;
                margin-bottom: 20px;
            }
        }