:root {
            --bg: #08111f;
            --bg-2: #0d1b2e;
            --panel: #12243a;
            --panel-2: #172d46;
            --text: #edf4ff;
            --muted: #b9c8dc;
            --accent: #25d0ff;
            --accent-2: #a77cff;
            --warn: #ffd166;
            --ok: #6ee7b7;
            --bad: #ff7b7b;
            --line: rgba(255,255,255,.14);
            --shadow: 0 24px 60px rgba(0,0,0,.35);
            --radius: 22px;
            --max: 1180px;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--text);
            background:
                radial-gradient(circle at top left, rgba(37, 208, 255, .20), transparent 32rem),
                radial-gradient(circle at 85% 12%, rgba(167, 124, 255, .16), transparent 28rem),
                linear-gradient(180deg, var(--bg), #050912 72%);
            line-height: 1.65;
        }
        a { color: var(--accent); text-decoration-thickness: .08em; text-underline-offset: .18em; }
        a:hover { color: #7be4ff; }

        .nav {
            width: min(100% - 2rem, var(--max));
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: .85rem 0;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: .7rem;
            color: var(--text);
            text-decoration: none;
            font-weight: 800;
            letter-spacing: .03em;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            display: grid;
            place-items: center;
            color: #06101c;
            font-weight: 900;
        }
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: .35rem .95rem;
            font-size: .95rem;
        }
        .nav-links a { color: var(--muted); text-decoration: none; }
        .nav-links a:hover { color: var(--text); }
        main { width: min(100% - 2rem, var(--max)); margin: 0 auto; }
        .hero {
            padding: clamp(3rem, 7vw, 6.5rem) 0 2.5rem;
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
            gap: clamp(1.5rem, 4vw, 3rem);
            align-items: center;
        }
        .kicker {
            display: inline-flex;
            gap: .45rem;
            align-items: center;
            padding: .35rem .75rem;
            border: 1px solid rgba(37,208,255,.35);
            border-radius: 999px;
            background: rgba(37,208,255,.08);
            color: #bdf3ff;
            font-size: .9rem;
            font-weight: 700;
        }
        h1, h2, h3 { line-height: 1.15; margin: 0 0 1rem; }
        h1 {
            font-size: clamp(2.4rem, 6vw, 5rem);
            letter-spacing: -.055em;
            margin-top: 1rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 3rem);
            letter-spacing: -.035em;
        }
        h3 { font-size: 1.25rem; color: #f5f9ff; }
        p { margin: 0 0 1rem; }
        .lead { font-size: clamp(1.08rem, 2.2vw, 1.32rem); color: var(--muted); max-width: 72ch; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.5rem; }
        .button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .45rem;
            padding: .85rem 1.05rem;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,.18);
            color: var(--text);
            text-decoration: none;
            background: rgba(255,255,255,.06);
            font-weight: 750;
        }
        .button.primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            color: #06101c;
            border: none;
        }
        .hero-card {
            background: linear-gradient(180deg, rgba(23,45,70,.92), rgba(18,36,58,.78));
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 1.2rem;
            box-shadow: var(--shadow);
        }
        .mini-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: .8rem;
            margin-top: 1rem;
        }
        .mini-card {
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: .95rem;
            background: rgba(255,255,255,.045);
        }
        .mini-card strong { display: block; margin-bottom: .35rem; color: #fff; }
        .mini-card span { display: block; color: var(--muted); font-size: .93rem; line-height: 1.45; }
        section {
            margin: 2rem 0;
            padding: clamp(1.3rem, 3vw, 2.2rem);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: rgba(12, 25, 42, .74);
            box-shadow: 0 16px 45px rgba(0,0,0,.22);
        }
        .section-header { max-width: 78ch; margin-bottom: 1.5rem; }
        .muted { color: var(--muted); }
        .notice {
            border-left: 4px solid var(--warn);
            background: rgba(255,209,102,.08);
            padding: 1rem;
            border-radius: 14px;
            margin: 1.2rem 0;
        }
        .okbox {
            border-left: 4px solid var(--ok);
            background: rgba(110,231,183,.08);
            padding: 1rem;
            border-radius: 14px;
            margin: 1.2rem 0;
        }
        .grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
        .card {
            background: rgba(255,255,255,.045);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 1rem;
        }
        .card ul, .card ol { padding-left: 1.2rem; margin: .2rem 0 0; }
        .card li { margin: .35rem 0; }
        .table-wrap { overflow-x: auto; margin: 1rem 0; border-radius: 16px; border: 1px solid var(--line); }
        table { width: 100%; border-collapse: collapse; min-width: 720px; background: rgba(0,0,0,.12); }
        th, td { text-align: left; vertical-align: top; padding: .85rem .95rem; border-bottom: 1px solid var(--line); }
        th { color: #fff; background: rgba(255,255,255,.06); font-size: .92rem; }
        tr:last-child td { border-bottom: none; }
        code, .tag {
            font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
            background: rgba(37,208,255,.12);
            color: #bdf3ff;
            padding: .12rem .35rem;
            border-radius: .45rem;
        }
        .timeline {
            display: grid;
            gap: .8rem;
            counter-reset: step;
        }
        .step {
            display: grid;
            grid-template-columns: 3.2rem minmax(0, 1fr);
            gap: .9rem;
            align-items: start;
            padding: .95rem;
            background: rgba(255,255,255,.045);
            border: 1px solid var(--line);
            border-radius: 16px;
        }
        .step-num {
            width: 2.6rem;
            height: 2.6rem;
            border-radius: 50%;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            color: #06101c;
            font-weight: 900;
        }
        .step-title { font-weight: 800; color: #fff; margin-bottom: .2rem; }
        .svg-panel {
            background: #06101c;
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 1rem;
            overflow: hidden;
        }
        .svg-panel svg { width: 100%; height: auto; display: block; }
        .two-columns { columns: 2; column-gap: 2rem; }
        .source-list { padding-left: 1.1rem; }
        .source-list li { margin: .45rem 0; }
        .footer {
            width: min(100% - 2rem, var(--max));
            margin: 2rem auto 0;
            padding: 2rem 0 3rem;
            color: var(--muted);
            font-size: .95rem;
            border-top: 1px solid var(--line);
        }
        .print-note { display: none; }
        @media (max-width: 880px) {
            .hero, .grid-2, .grid-3 { grid-template-columns: 1fr; }
            .nav { align-items: flex-start; flex-direction: column; }
            .mini-grid { grid-template-columns: 1fr; }
            .two-columns { columns: 1; }
        }
        @media print {
            :root { --bg: #fff; --text: #111; --muted: #333; --line: #ddd; }
            body { background: #fff; color: #111; }
            .page-header, .hero-actions { display: none; }
            section, .hero-card, .card, .notice, .okbox, .svg-panel { box-shadow: none; background: #fff; color: #111; }
            a { color: #111; }
            .print-note { display: block; }
        }