body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            max-width: 900px;
            margin: 0 auto;
            padding: 2rem;
            color: #333;
        }
        h1 {
            text-align: center;
            color: #1a1a1a;
            margin-bottom: 0.5rem;
        }
        .version-date {
            text-align: center;
            color: #666;
            margin-bottom: 3rem;
        }
        h2 {
            color: #2c5282;
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #edf2f7;
        }
        h3 {
            color: #2d3748;
            margin-top: 1.5rem;
        }
        h4 {
            color: #2d3748;
            font-weight;bold;
        }

        .key-points {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        th, td {
            padding: 0.75rem;
            border: 1px solid #e2e8f0;
            text-align: left;
        }
        th {
            background: #f7fafc;
        }
        ul, ol {
            padding-left: 2rem;
        }
        .checkmark {
            color: #38a169;
        }