:root {
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe5f0;
      --soft:#f8fbff;
      --bg:#eff4f9;
      --card:#ffffff;
      --accent:#eaf3ff;
      --ok:#0b7a5c;
      --warn:#b45309;
      --violet:#7c3aed;
      --radius:18px;
      --shadow:0 12px 28px rgba(15,23,42,.08);
    }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
      margin:0;
      font-family:Arial, Helvetica, sans-serif;
      line-height:1.75;
      color:var(--ink);
      background:var(--bg);
    }
    a { color:var(--brand); text-decoration:none; }
    a:hover { text-decoration:underline; }
    .wrap {
      max-width:1120px;
      margin:0 auto;
      padding:28px 18px 72px;
    }
    .hero {
      background:linear-gradient(135deg, #0a3f78 0%, #0b5cab 52%, #134e9b 100%);
      color:#fff;
      border-radius:28px;
      overflow:hidden;
      box-shadow:var(--shadow);
      position:relative;
      isolation:isolate;
    }
    .hero::before {
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 88% 18%, rgba(255,255,255,.12) 0, rgba(255,255,255,.12) 12%, transparent 13%),
        linear-gradient(120deg, transparent 0 62%, rgba(255,255,255,.08) 62% 69%, transparent 69% 100%);
      pointer-events:none;
      z-index:0;
    }
    .hero-inner {
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:24px;
      padding:36px 34px;
      position:relative;
      z-index:1;
    }
    .eyebrow {
      display:inline-block;
      font-size:12px;
      letter-spacing:.12em;
      text-transform:uppercase;
      padding:8px 12px;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.28);
      border-radius:999px;
      margin-bottom:16px;
    }
    h1, h2, h3 {
      line-height:1.25;
      scroll-margin-top:88px;
    }
    h1 {
      margin:0 0 14px;
      font-size:40px;
    }
    h2 {
      font-size:32px;
      margin:0 0 14px;
      color:var(--brand-dark);
    }
    h3 {
      font-size:24px;
      margin:24px 0 10px;
      color:var(--brand);
    }
    p { margin:0 0 18px; font-size:17px; }
    .hero p { color:rgba(255,255,255,.96); max-width:720px; text-shadow:0 1px 0 rgba(0,0,0,.08); }
    .hero-side {
      background:rgba(8,31,61,.34);
      border:1px solid rgba(255,255,255,.18);
      border-radius:20px;
      padding:20px;
      backdrop-filter:blur(4px);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    }
    .hero-side h3 {
      margin-top:0;
      color:#fff;
      font-size:22px;
    }
    .hero-side ul {
      margin:0;
      padding-left:20px;
      font-size:15px;
    }
    .hero-side li { margin:8px 0; }
    .cta-row {
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .btn {
      display:inline-block;
      padding:12px 18px;
      border-radius:999px;
      font-weight:700;
      transition:.18s ease;
    }
    .btn.primary { background:#fff; color:var(--brand-dark); }
    .btn.secondary {
      background:rgba(255,255,255,.08);
      color:#fff;
      border:1px solid rgba(255,255,255,.45);
    }
    .btn.light {
      background:var(--accent);
      color:var(--brand-dark);
      border:1px solid #c6def8;
    }
    .toc {
      margin:28px 0;
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:24px;
      box-shadow:var(--shadow);
    }
    .toc h2 {
      font-size:24px;
      margin-bottom:12px;
    }
    .toc ol {
      margin:0;
      padding-left:20px;
      columns:2;
      gap:32px;
    }
    .toc li { margin:8px 0; break-inside:avoid; }
    .section {
      background:var(--card);
      border:1px solid var(--line);
      border-radius:24px;
      padding:32px;
      margin:24px 0;
      box-shadow:var(--shadow);
    }
    .lead-box {
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:20px;
      margin:18px 0 0;
    }
    .note, .signal, .checklist, .mini-card {
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:18px;
      padding:18px;
    }
    .signal {
      background:#f5fbf8;
      border-color:#cfeadf;
    }
    .figure {
      margin:26px 0 30px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:20px;
      padding:16px;
    }
    .figure img {
      width:100%;
      height:auto;
      display:block;
      border-radius:14px;
      border:1px solid #e6eef7;
      background:#fff;
    }
    .figure svg {
      width:100%;
      height:auto;
      display:block;
      border-radius:14px;
      border:1px solid #e6eef7;
      background:#fff;
    }
    .caption {
      margin:12px 2px 0;
      color:var(--muted);
      font-size:14px;
    }
    .spec-table, .decision-table {
      width:100%;
      border-collapse:collapse;
      margin:18px 0 12px;
      font-size:15px;
    }
    .spec-table th, .spec-table td, .decision-table th, .decision-table td {
      padding:13px 12px;
      border:1px solid var(--line);
      vertical-align:top;
    }
    .spec-table th, .decision-table th {
      background:#edf5ff;
      color:var(--brand-dark);
      text-align:left;
    }
    .spec-table tr:nth-child(even) td, .decision-table tr:nth-child(even) td {
      background:#fbfdff;
    }
    .grid-2, .grid-3 {
      display:grid;
      gap:18px;
    }
    .grid-2 { grid-template-columns:repeat(2, minmax(0,1fr)); }
    .grid-3 { grid-template-columns:repeat(3, minmax(0,1fr)); }
    .tag {
      display:inline-block;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
      background:#edf5ff;
      color:var(--brand-dark);
      margin:0 8px 8px 0;
    }
    .warning {
      border-left:4px solid var(--warn);
      padding-left:14px;
    }
    .checklist ul, .signal ul, .note ul {
      margin:0;
      padding-left:20px;
    }
    .checklist li, .signal li, .note li { margin:8px 0; }
    .cta-panel {
      background:linear-gradient(135deg, #0f1d35 0%, #0b5cab 100%);
      color:#fff;
      border:none;
    }
    .cta-panel h2, .cta-panel h3 { color:#fff; }
    .cta-panel p, .cta-panel li { color:rgba(255,255,255,.94); }
    .faq-item {
      border:1px solid var(--line);
      border-radius:16px;
      padding:16px 18px;
      margin:12px 0;
      background:#fff;
    }
    .faq-item summary {
      cursor:pointer;
      font-weight:700;
      color:var(--brand-dark);
    }
    .related-links a {
      display:inline-block;
      margin:0 12px 12px 0;
      padding:10px 14px;
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:999px;
    }
    .footer-note {
      color:var(--muted);
      font-size:14px;
      margin-top:18px;
    }
    @media (max-width:900px) {
      .hero-inner, .lead-box, .grid-2, .grid-3 { grid-template-columns:1fr; }
      .toc ol { columns:1; }
      h1 { font-size:32px; }
      h2 { font-size:28px; }
    }