:root{
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe3ef;
      --bg:#f4f8fc;
      --card:#ffffff;
      --soft:#f8fbff;
      --accent:#eaf3ff;
      --ok:#0b8a5b;
      --warn:#b45309;
      --radius:18px;
      --shadow:0 12px 30px rgba(15,23,42,.08);
      --max:1160px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Arial,Helvetica,sans-serif;
      color:var(--ink);
      background:var(--bg);
      line-height:1.76;
    }
    a{color:var(--brand);text-decoration:none}
    a:hover{text-decoration:underline}
    .wrap{max-width:var(--max);margin:0 auto;padding:32px 20px 72px}
    .hero{
      background:linear-gradient(135deg,#0b5cab 0%,#0a2f57 100%);
      color:#fff;
      padding:42px 34px;
      border-radius:26px;
      box-shadow:var(--shadow);
    }
    .eyebrow{
      display:inline-block;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.2);
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;
      letter-spacing:.05em;
      text-transform:uppercase;
      margin-bottom:14px;
    }
    h1,h2,h3{line-height:1.24;scroll-margin-top:90px}
    h1{font-size:40px;margin:0 0 12px}
    h2{font-size:30px;color:var(--brand-dark);margin:42px 0 16px}
    h3{font-size:22px;color:var(--brand);margin:24px 0 10px}
    p{margin:0 0 16px;font-size:17px}
    .hero p{color:#e8f3ff;max-width:920px;font-size:18px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
    .btn{
      display:inline-block;
      padding:13px 18px;
      border-radius:12px;
      font-weight:700;
      transition:transform .15s ease;
    }
    .btn:hover{transform:translateY(-1px);text-decoration:none}
    .btn-primary{background:#fff;color:var(--brand-dark)}
    .btn-secondary{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.24)}
    .toc,.section-card,.note,.cta-box,.faq,.spec-table-wrap,.ext-box{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .toc{margin:26px 0 30px;padding:22px 24px}
    .toc h2{margin:0 0 12px;font-size:22px;color:var(--ink)}
    .toc ol{margin:0;padding-left:20px}
    .toc li{margin:8px 0;color:var(--muted)}
    .section-card{padding:28px}
    .lede{font-size:18px}
    .note{padding:18px 20px;margin:18px 0;background:var(--soft)}
    .note strong{color:var(--brand-dark)}
    .spec-table-wrap{overflow-x:auto;margin:18px 0 26px}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:16px}
    th{background:var(--accent);color:var(--brand-dark);font-size:15px;text-transform:uppercase;letter-spacing:.03em}
    tr:last-child td{border-bottom:none}
    .two-col{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:start}
    .bullets,.checklist{padding-left:22px;margin:8px 0 18px}
    .bullets li,.checklist li{margin:10px 0;font-size:17px}
    figure{margin:30px 0}
    figure svg{width:100%;height:auto;display:block;border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
    figcaption{color:var(--muted);font-size:14px;margin-top:10px;text-align:center}
    .callout-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0}
    .callout{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:18px}
    .callout h3{margin-top:0;font-size:20px}
    .ext-box{padding:22px;margin:22px 0;background:linear-gradient(180deg,#fff 0%,#f8fbff 100%)}
    .cta-box{padding:28px;margin-top:30px;background:linear-gradient(180deg,#ffffff 0%,#f8fbff 100%)}
    .cta-box h2{margin-top:0}
    .faq{padding:28px;margin-top:26px}
    .faq-item + .faq-item{border-top:1px solid var(--line);margin-top:18px;padding-top:18px}
    .meta{color:var(--muted);font-size:14px;margin-top:26px}
    .small{font-size:14px;color:var(--muted)}
    @media (max-width:900px){
      h1{font-size:32px}
      h2{font-size:26px}
      .two-col,.callout-grid{grid-template-columns:1fr}
      .wrap{padding-left:14px;padding-right:14px}
      .hero{padding:28px 20px}
    }