:root {
            --bg-dark: #0f172a;
            --text-primary: #f8fafc;
            --text-secondary: #94a3b8;
            --border: rgba(255, 255, 255, 0.1);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Noto Sans KR';
            --primary: #6366f1;
            --primary-light: #a5b4fc;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            background-color: var(--bg-dark);
            background: radial-gradient(circle at 50% 0%, #1e293b 0%, #0f172a 60%);
            color: var(--text-primary);
            font-family: var(--font-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        .header {
            padding: 12px 24px;
            background: rgba(15, 15, 26, 0.8);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: baseline;
            gap: 12px;
            flex-wrap: wrap;
        }

        .header a.logo {
            color: var(--text-primary);
            text-decoration: none;
            font-size: 16px;
            font-weight: 700;
        }

        .header .domain-hint {
            color: var(--text-secondary);
            font-size: 12px;
        }

        main {
            max-width: 760px;
            margin: 0 auto;
            padding: 48px 24px 96px;
        }

        h1 {
            font-size: 28px;
            margin: 0 0 8px;
            letter-spacing: -0.02em;
        }

        .effective {
            color: var(--text-secondary);
            font-size: 13px;
            margin: 0 0 40px;
        }

        h2 {
            font-size: 18px;
            margin: 40px 0 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: 15px;
            margin: 24px 0 8px;
            color: var(--primary-light);
        }

        p,
        li {
            font-size: 15px;
            color: #cbd5e1;
        }

        ul {
            padding-left: 20px;
        }

        li {
            margin-bottom: 6px;
        }

        strong {
            color: var(--text-primary);
        }

        a {
            color: var(--primary-light);
        }

        .callout {
            margin: 24px 0;
            padding: 16px 20px;
            border-left: 3px solid var(--primary);
            background: rgba(99, 102, 241, 0.08);
            border-radius: 0 8px 8px 0;
        }

        .callout p {
            margin: 0;
            color: var(--text-primary);
        }

        .table-wrap {
            overflow-x: auto;
            margin: 16px 0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 520px;
        }

        th,
        td {
            text-align: left;
            padding: 10px 12px;
            border-bottom: 1px solid var(--border);
            vertical-align: top;
            color: #cbd5e1;
        }

        th {
            color: var(--text-primary);
            font-weight: 600;
            white-space: nowrap;
        }

        footer {
            border-top: 1px solid var(--border);
            padding: 24px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 13px;
        }