:root {
      --brand:#0b5cab;
      --brand-dark:#083d74;
      --ink:#0f172a;
      --muted:#475569;
      --line:#dbe3ef;
      --bg:#f3f7fc;
      --card:#ffffff;
      --soft:#f8fbff;
      --accent:#eaf3ff;
      --ok:#0b8a5b;
      --warn:#b45309;
      --shadow:0 12px 32px rgba(15,23,42,.08);
      --radius:18px;
      --max:1120px;
    }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
      margin:0;
      font-family:Arial, Helvetica, sans-serif;
      color:var(--ink);
      background:linear-gradient(180deg,#eef5fb 0%, #f7fbff 100%);
      line-height:1.75;
    }
    a { color:var(--brand); text-decoration:none; }
    a:hover { text-decoration:underline; }
    .wrap {
      max-width:var(--max);
      margin:0 auto;
      padding:24px;
    }
    .hero {
      background:linear-gradient(135deg,#0b5cab 0%, #083d74 100%);
      color:#fff;
      border-radius:24px;
      padding:34px;
      box-shadow:var(--shadow);
      margin-top:14px;
    }
    .eyebrow {
      display:inline-block;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.25);
      color:#fff;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.04em;
      text-transform:uppercase;
      margin-bottom:14px;
    }
    h1 {
      margin:0 0 14px;
      font-size:42px;
      line-height:1.18;
    }
    h2, h3 {
      scroll-margin-top:90px;
    }
    h2 {
      font-size:30px;
      margin:0 0 14px;
      color:var(--brand-dark);
    }
    h3 {
      font-size:22px;
      margin:18px 0 10px;
      color:#12385f;
    }
    p { margin:0 0 16px; }
    .hero p {
      color:rgba(255,255,255,.94);
      font-size:17px;
      max-width:920px;
    }
    .hero-actions {
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:20px;
    }
    .btn {
      display:inline-block;
      padding:12px 16px;
      border-radius:12px;
      font-weight:700;
      border:1px solid rgba(255,255,255,.25);
    }
    .btn.primary {
      background:#fff;
      color:var(--brand-dark);
    }
    .btn.secondary {
      background:rgba(255,255,255,.12);
      color:#fff;
    }
    .meta-grid {
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
      margin-top:22px;
    }
    .meta-card {
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:16px;
      padding:14px;
    }
    .meta-card strong {
      display:block;
      font-size:13px;
      letter-spacing:.04em;
      text-transform:uppercase;
      opacity:.86;
      margin-bottom:6px;
    }
    .panel {
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:28px;
      margin:24px 0;
      box-shadow:var(--shadow);
    }
    .toc ul {
      margin:0;
      padding-left:20px;
      columns:2;
      column-gap:34px;
    }
    .toc li { margin:0 0 10px; break-inside:avoid; }
    .notice {
      background:var(--soft);
      border-left:5px solid var(--brand);
      padding:16px 18px;
      border-radius:12px;
      margin:18px 0;
    }
    .highlight-grid {
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
      margin-top:14px;
    }
    .highlight {
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      padding:18px;
    }
    .highlight h3 {
      margin-top:0;
      font-size:19px;
    }
    .figure {
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      padding:16px;
      margin:22px 0 26px;
      box-shadow:var(--shadow);
    }
    .figure img {
      display:block;
      width:100%;
      height:auto;
      border-radius:12px;
      background:#fff;
    }
    .figcaption {
      color:var(--muted);
      font-size:14px;
      margin-top:10px;
    }
    .spec-table, .rfq-table {
      width:100%;
      border-collapse:collapse;
      margin:16px 0;
      background:#fff;
      overflow:hidden;
    }
    .spec-table th, .spec-table td,
    .rfq-table th, .rfq-table td {
      border:1px solid var(--line);
      padding:12px 14px;
      text-align:left;
      vertical-align:top;
    }
    .spec-table th, .rfq-table th {
      background:var(--accent);
    }
    .checklist {
      padding-left:20px;
      margin:14px 0 16px;
    }
    .checklist li { margin-bottom:10px; }
    .split {
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:start;
    }
    .card-list {
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      padding:18px;
    }
    .card h3 {
      margin-top:0;
    }
    .cta {
      background:linear-gradient(135deg,#f8fbff 0%, #ecf5ff 100%);
      border:1px solid #cfe1f6;
      border-radius:20px;
      padding:24px;
    }
    .links-cloud {
      display:flex;
      flex-wrap:wrap;
      gap:10px 12px;
      margin-top:16px;
    }
    .links-cloud a {
      display:inline-block;
      padding:10px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#fff;
      font-size:14px;
      font-weight:700;
    }
    details {
      border:1px solid var(--line);
      border-radius:14px;
      padding:14px 16px;
      background:#fff;
      margin-bottom:12px;
    }
    summary {
      cursor:pointer;
      font-weight:700;
      color:var(--ink);
    }
    .related-links a {
      display:inline;
      font-weight:700;
    }
    .footer-note {
      font-size:13px;
      color:var(--muted);
      margin-top:22px;
    }
    @media (max-width:980px) {
      .meta-grid, .highlight-grid, .split, .card-list {
        grid-template-columns:1fr;
      }
      .toc ul {
        columns:1;
      }
      h1 {
        font-size:34px;
      }
    }