:root {
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe3ef;
      --bg:#f4f8fc;
      --card:#ffffff;
      --soft:#f8fbff;
      --accent:#eaf3ff;
      --warn:#b45309;
      --ok:#0b8a5b;
    }
    * { 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:1.75;
    }
    .wrap {
      max-width:1120px;
      margin:0 auto;
      padding:32px 20px 64px;
    }
    .hero {
      background:linear-gradient(135deg, #0b5cab 0%, #083d74 100%);
      color:#fff;
      border-radius:24px;
      padding:36px 32px;
      box-shadow:0 20px 50px rgba(11,92,171,.18);
    }
    .eyebrow {
      display:inline-block;
      font-size:13px;
      letter-spacing:.08em;
      text-transform:uppercase;
      background:rgba(255,255,255,.14);
      padding:8px 12px;
      border-radius:999px;
      margin-bottom:14px;
    }
    h1,h2,h3 {
      line-height:1.25;
      color:var(--ink);
      scroll-margin-top:90px;
    }
    h1 {
      color:#fff;
      margin:0 0 12px;
      font-size:38px;
    }
    .hero p {
      margin:0;
      font-size:18px;
      max-width:880px;
      color:#e8f1fb;
    }
    .meta {
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .meta span {
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      padding:8px 12px;
      border-radius:999px;
      font-size:14px;
    }
    .toc {
      margin:24px 0 30px;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:20px;
      padding:24px;
    }
    .toc h2 {
      margin:0 0 10px;
      font-size:22px;
    }
    .toc ol {
      margin:10px 0 0 18px;
      padding:0;
    }
    .toc li {
      margin:8px 0;
      color:var(--muted);
    }
    .toc a {
      color:var(--brand-dark);
      text-decoration:none;
    }
    .toc a:hover { text-decoration:underline; }
    .section {
      background:var(--card);
      border:1px solid var(--line);
      border-radius:22px;
      padding:28px 26px;
      margin:22px 0;
    }
    .section h2 {
      margin:0 0 16px;
      font-size:30px;
    }
    .section h3 {
      margin:22px 0 10px;
      font-size:22px;
    }
    p { margin:0 0 16px; }
    ul,ol { padding-left:22px; }
    li { margin:8px 0; }
    a {
      color:var(--brand);
      text-underline-offset:2px;
    }
    .grid-2 {
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:18px;
      margin:16px 0 8px;
    }
    .card {
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:18px;
      padding:18px;
    }
    .card h3 {
      margin-top:0;
      font-size:20px;
    }
    .spec-table {
      width:100%;
      border-collapse:collapse;
      margin:18px 0;
      font-size:15px;
      background:#fff;
    }
    .spec-table th,
    .spec-table td {
      border:1px solid var(--line);
      padding:12px 10px;
      text-align:left;
      vertical-align:top;
    }
    .spec-table th {
      background:var(--accent);
    }
    .callout {
      border-left:5px solid var(--brand);
      background:var(--soft);
      padding:16px 18px;
      border-radius:14px;
      margin:18px 0;
    }
    .warn {
      border-left-color:var(--warn);
      background:#fff8ec;
    }
    .cta {
      background:linear-gradient(180deg, #f8fbff 0%, #edf5ff 100%);
      border:1px solid #cfe1f6;
      border-radius:20px;
      padding:22px;
      margin:22px 0;
    }
    .cta h3 {
      margin:0 0 10px;
      color:var(--brand-dark);
    }
    .btn-row {
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:14px;
    }
    .btn {
      display:inline-block;
      padding:12px 18px;
      border-radius:999px;
      text-decoration:none;
      font-weight:700;
    }
    .btn-primary {
      background:var(--brand);
      color:#fff;
    }
    .btn-secondary {
      background:#fff;
      color:var(--brand);
      border:1px solid #b8d2ef;
    }
    figure {
      margin:24px 0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      padding:14px;
    }
    figure img {
      width:100%;
      height:auto;
      display:block;
      border-radius:14px;
      border:1px solid #e7edf5;
      background:#fff;
    }
    figcaption {
      font-size:14px;
      color:var(--muted);
      margin-top:10px;
    }
    .faq-item {
      border-top:1px solid var(--line);
      padding:16px 0;
    }
    .faq-item:first-child { border-top:none; padding-top:0; }
    .small {
      font-size:14px;
      color:var(--muted);
    }
    .footer-note {
      margin-top:18px;
      padding-top:18px;
      border-top:1px solid var(--line);
      font-size:14px;
      color:var(--muted);
    }
    @media (max-width: 820px) {
      h1 { font-size:30px; }
      .section h2 { font-size:26px; }
      .grid-2 { grid-template-columns:1fr; }
      .wrap { padding:20px 14px 48px; }
      .hero { padding:28px 20px; }
      .section { padding:22px 18px; }
    }