:root {
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe3ef;
      --bg:#f4f8fc;
      --card:#ffffff;
      --soft:#f8fbff;
      --accent:#eaf3ff;
      --ok:#0b8a5b;
      --warn:#b45309;
      --shadow:0 16px 40px rgba(11,92,171,.10);
      --radius:22px;
      --max:1180px;
    }
    * { 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:1.78;
    }
    a {
      color:var(--brand);
      text-decoration:none;
    }
    a:hover { text-decoration:underline; }
    img {
      max-width:100%;
      height:auto;
      display:block;
      border-radius:18px;
    }
    .wrap {
      max-width:var(--max);
      margin:0 auto;
      padding:24px;
    }
    .missing {
      background:#fff7e9;
      border:1px solid #f4d7a1;
      border-left:6px solid var(--warn);
      border-radius:18px;
      padding:18px 20px;
      margin:10px auto 24px;
      box-shadow:var(--shadow);
    }
    .missing h2 {
      margin:0 0 8px;
      font-size:1.1rem;
      color:#8a5300;
    }
    .hero {
      background:linear-gradient(135deg, #0b5cab 0%, #083d74 100%);
      color:#fff;
      border-radius:28px;
      padding:36px 34px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero:after {
      content:"";
      position:absolute;
      inset:auto -120px -120px auto;
      width:320px;
      height:320px;
      border-radius:50%;
      background:rgba(255,255,255,.09);
    }
    .eyebrow {
      display:inline-block;
      background:rgba(255,255,255,.13);
      border:1px solid rgba(255,255,255,.18);
      color:#fff;
      padding:8px 12px;
      border-radius:999px;
      font-size:.92rem;
      letter-spacing:.02em;
      margin-bottom:14px;
    }
    h1 {
      margin:0 0 14px;
      font-size:clamp(2rem, 4vw, 3.2rem);
      line-height:1.14;
    }
    .hero p {
      font-size:1.08rem;
      max-width:860px;
      margin:0 0 18px;
      color:#e9f4ff;
    }
    .cta-row {
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
    }
    .btn {
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 16px;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      transition:.2s ease;
    }
    .btn.primary {
      background:#fff;
      color:var(--brand-dark);
    }
    .btn.secondary {
      background:transparent;
      color:#fff;
      border-color:rgba(255,255,255,.35);
    }
    .btn:hover {
      transform:translateY(-1px);
      text-decoration:none;
    }
    .layout {
      display:grid;
      grid-template-columns:minmax(0, 1fr);
      gap:24px;
      margin-top:24px;
    }
    .toc {
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:22px;
    }
    .toc h2 {
      margin:0 0 10px;
      font-size:1.1rem;
    }
    .toc ol {
      margin:0;
      padding-left:20px;
      display:grid;
      gap:10px;
    }
    .article {
      background:var(--card);
      border:1px solid var(--line);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:34px;
    }
    .article h2 {
      font-size:1.85rem;
      line-height:1.24;
      margin:38px 0 14px;
      color:var(--brand-dark);
      scroll-margin-top:90px;
    }
    .article h3 {
      font-size:1.18rem;
      margin:24px 0 8px;
      color:#18324b;
      scroll-margin-top:90px;
    }
    .article p {
      margin:0 0 16px;
      font-size:1.03rem;
    }
    .lead {
      font-size:1.09rem;
    }
    .spec-grid {
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
      margin:18px 0 26px;
    }
    .spec-card {
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:18px;
      padding:16px;
    }
    .spec-card strong {
      display:block;
      font-size:.95rem;
      color:var(--muted);
      margin-bottom:8px;
    }
    .spec-card span {
      font-size:1.15rem;
      font-weight:700;
      color:var(--brand-dark);
    }
    .checklist {
      margin:16px 0 18px;
      padding-left:22px;
    }
    .checklist li {
      margin:0 0 10px;
    }
    figure {
      margin:30px 0;
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:22px;
      padding:16px;
    }
    figcaption {
      font-size:.94rem;
      color:var(--muted);
      margin-top:12px;
    }
    .table-wrap {
      overflow:auto;
      margin:18px 0 24px;
      border:1px solid var(--line);
      border-radius:20px;
    }
    table {
      width:100%;
      border-collapse:collapse;
      background:#fff;
      min-width:760px;
    }
    th, td {
      border-bottom:1px solid var(--line);
      padding:14px 14px;
      text-align:left;
      vertical-align:top;
      font-size:.98rem;
    }
    th {
      background:#f7fbff;
      color:var(--brand-dark);
      font-size:.94rem;
    }
    tr:last-child td { border-bottom:none; }
    .callout {
      background:#f7fbff;
      border:1px solid #cfe1f5;
      border-left:6px solid var(--brand);
      border-radius:18px;
      padding:18px 20px;
      margin:20px 0;
    }
    .warn {
      background:#fff8ef;
      border-color:#f2d4a3;
      border-left-color:var(--warn);
    }
    .mini-links {
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin:18px 0 8px;
    }
    .mini-links a {
      display:block;
      background:var(--soft);
      border:1px solid var(--line);
      border-radius:16px;
      padding:14px;
      font-weight:700;
    }
    .faq-item {
      border-top:1px solid var(--line);
      padding:18px 0 0;
      margin-top:18px;
    }
    .cta-panel {
      margin-top:28px;
      padding:26px;
      background:linear-gradient(180deg, #f7fbff 0%, #eef6ff 100%);
      border:1px solid #cfe1f5;
      border-radius:24px;
    }
    .cta-grid {
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:12px;
      margin-top:16px;
    }
    .cta-grid a {
      display:block;
      padding:14px 12px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      font-weight:700;
      text-align:center;
    }
    .footnote {
      font-size:.92rem;
      color:var(--muted);
      margin-top:16px;
    }
    @media (max-width:960px) {
      .spec-grid, .mini-links, .cta-grid {
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .article {
        padding:24px;
      }
    }
    @media (max-width:640px) {
      .wrap {
        padding:16px;
      }
      .hero, .toc, .article {
        padding:20px;
      }
      .spec-grid, .mini-links, .cta-grid {
        grid-template-columns:1fr;
      }
      h1 {
        font-size:2rem;
      }
    }