:root {
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe3ef;
      --bg:#f4f8fc;
      --card:#ffffff;
      --soft:#f8fbff;
      --accent:#eaf3ff;
      --ok:#0b8a5b;
      --warn:#b45309;
    }
    * { 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:1.72;
    }
    a { color:var(--brand); text-decoration:none; }
    a:hover { text-decoration:underline; }
    .wrap { max-width:1160px; margin:0 auto; padding:0 22px 56px; }
    .hero {
      background:linear-gradient(135deg, #0b5cab 0%, #12325f 100%);
      color:#fff;
      border-radius:24px;
      padding:44px 36px;
      margin:24px 0 28px;
      box-shadow:0 18px 48px rgba(8,61,116,.16);
    }
    .eyebrow {
      display:inline-block;
      font-size:12px;
      letter-spacing:.12em;
      text-transform:uppercase;
      border:1px solid rgba(255,255,255,.28);
      border-radius:999px;
      padding:8px 12px;
      margin-bottom:16px;
    }
    .hero h1 { margin:0 0 14px; font-size:42px; line-height:1.18; }
    .hero p { margin:0 0 18px; font-size:18px; max-width:940px; color:#e8f1ff; }
    .cta-row { display:flex; gap:14px; flex-wrap:wrap; margin-top:20px; }
    .btn {
      display:inline-block;
      padding:13px 18px;
      border-radius:12px;
      font-weight:700;
      transition:.2s ease;
    }
    .btn-primary { background:#fff; color:var(--brand-dark); }
    .btn-secondary { background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.26); }
    .btn:hover { transform:translateY(-1px); text-decoration:none; }
    .hero-grid { display:grid; grid-template-columns:1.2fr .95fr; gap:22px; align-items:start; margin-top:24px; }
    .hero-card { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.16); border-radius:18px; padding:18px; }
    .hero-card h2 { margin:0 0 10px; font-size:18px; }
    .hero-card ul { margin:0; padding-left:18px; color:#e8f1ff; }
    .hero-card li { margin:8px 0; }
    .layout { display:grid; grid-template-columns:280px minmax(0,1fr); gap:28px; }
    .toc { position:sticky; top:18px; align-self:start; background:var(--card); border:1px solid var(--line); border-radius:20px; padding:20px; }
    .toc h2 { margin:0 0 12px; font-size:18px; color:var(--brand-dark); }
    .toc ol { margin:0; padding-left:18px; }
    .toc li { margin:10px 0; color:var(--muted); }
    .content { background:var(--card); border:1px solid var(--line); border-radius:24px; padding:34px; }
    .content h2 { color:var(--brand-dark); font-size:31px; line-height:1.24; margin:0 0 16px; scroll-margin-top:90px; }
    .content h3 { color:var(--brand); font-size:23px; line-height:1.3; margin:28px 0 12px; scroll-margin-top:90px; }
    .content p { margin:0 0 16px; font-size:17px; }
    .content ul, .content ol { margin:0 0 18px 22px; }
    .content li { margin:10px 0; font-size:17px; }
    .lead { font-size:19px; color:#1f3550; }
    .stat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:22px 0 26px; }
    .stat { background:var(--soft); border:1px solid var(--line); border-radius:16px; padding:18px; }
    .stat .k { display:block; font-size:28px; font-weight:800; color:var(--brand-dark); margin-bottom:6px; }
    .stat .t { display:block; color:var(--muted); font-size:14px; }
    .callout { border-left:5px solid var(--brand); background:var(--soft); padding:18px 18px 18px 20px; border-radius:14px; margin:24px 0; }
    .callout strong { color:var(--brand-dark); }
    .spec-table, .check-table { width:100%; border-collapse:separate; border-spacing:0; margin:22px 0 28px; border:1px solid var(--line); border-radius:18px; overflow:hidden; }
    .spec-table th, .spec-table td, .check-table th, .check-table td { padding:15px 16px; border-bottom:1px solid var(--line); vertical-align:top; text-align:left; }
    .spec-table th, .check-table th { background:#eef5ff; color:var(--brand-dark); font-size:15px; }
    .spec-table tr:last-child td, .check-table tr:last-child td { border-bottom:none; }
    .section-note { font-size:14px; color:var(--muted); margin-top:-10px; margin-bottom:20px; }
    .svg-figure { margin:28px 0 30px; }
    .svg-figure img { width:100%; height:auto; border:1px solid var(--line); border-radius:20px; background:#fff; display:block; }
    .svg-figure figcaption { color:var(--muted); font-size:14px; margin-top:10px; text-align:center; }
    .faq { border-top:1px solid var(--line); margin-top:28px; padding-top:8px; }
    .faq-item { border:1px solid var(--line); border-radius:16px; padding:18px; margin:14px 0; background:#fff; }
    .faq-item h3 { margin:0 0 10px; font-size:20px; }
    .cta-box { background:linear-gradient(135deg, #eff6ff 0%, #f8fbff 100%); border:1px solid #cfe0f3; border-radius:20px; padding:24px; margin-top:30px; }
    .cta-box h2 { margin-bottom:10px; }
    .tiny { font-size:13px; color:var(--muted); }
    @media (max-width: 980px) {
      .layout { grid-template-columns:1fr; }
      .toc { position:static; }
      .hero-grid { grid-template-columns:1fr; }
      .stat-grid { grid-template-columns:1fr; }
      .content { padding:24px; }
      .hero { padding:32px 24px; }
      .hero h1 { font-size:34px; }
    }