:root {
      --brand:#0f3f73;
      --brand-dark:#0b1f33;
      --accent:#f59e0b;
      --text:#1f2937;
      --muted:#5b6573;
      --line:#d7dee8;
      --bg:#ffffff;
      --soft:#f4f8fc;
    }
    * { box-sizing:border-box; }
    body {
      margin:0;
      font-family: Arial, Helvetica, sans-serif;
      color:var(--text);
      background:#eef3f8;
      line-height:1.7;
    }
    .article-shell {
      max-width: 1040px;
      margin: 0 auto;
      background: var(--bg);
      box-shadow: 0 10px 30px rgba(15,63,115,.08);
    }
    .hero {
      padding: 48px 56px 28px;
      background: linear-gradient(135deg, var(--brand-dark), var(--brand));
      color:#fff;
    }
    .eyebrow {
      display:inline-block;
      font-size:14px;
      letter-spacing:.08em;
      text-transform:uppercase;
      font-weight:700;
      color:#d8eaff;
      margin-bottom:14px;
    }
    h1 {
      margin:0 0 18px;
      font-size:42px;
      line-height:1.2;
    }
    .hero p {
      max-width: 860px;
      font-size:19px;
      margin:0 0 18px;
      color:#e6f0fb;
    }
    .cta-row {
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:20px;
    }
    .btn {
      display:inline-block;
      padding:13px 20px;
      border-radius:999px;
      text-decoration:none;
      font-weight:700;
    }
    .btn-primary {
      background:#fff;
      color:var(--brand);
    }
    .btn-secondary {
      border:1px solid rgba(255,255,255,.45);
      color:#fff;
    }
    .content {
      padding: 28px 56px 60px;
    }
    .summary-box {
      border:1px solid var(--line);
      background:var(--soft);
      border-radius:18px;
      padding:24px;
      margin: 0 0 28px;
    }
    .summary-box h2 {
      margin-top:0;
    }
    .toc {
      border:1px solid var(--line);
      border-radius:18px;
      padding:22px 24px;
      background:#fff;
      margin: 0 0 32px;
    }
    .toc h2 {
      margin:0 0 12px;
      font-size:24px;
    }
    .toc ol {
      margin:0;
      padding-left:22px;
    }
    .toc li {
      margin:8px 0;
    }
    .toc a {
      color:var(--brand);
      text-decoration:none;
    }
    h2 {
      margin:42px 0 14px;
      font-size:31px;
      line-height:1.28;
      color:var(--brand-dark);
    }
    h3 {
      margin:24px 0 10px;
      font-size:24px;
      color:var(--brand);
    }
    p {
      margin: 0 0 16px;
      font-size:18px;
    }
    ul {
      margin: 0 0 18px 22px;
      padding:0;
    }
    li {
      margin: 8px 0;
      font-size:18px;
    }
    a {
      color:var(--brand);
    }
    .checklist, .fit-table {
      width:100%;
      border-collapse:collapse;
      margin:18px 0 24px;
      font-size:17px;
    }
    .checklist th, .checklist td, .fit-table th, .fit-table td {
      border:1px solid var(--line);
      padding:14px 14px;
      vertical-align:top;
      text-align:left;
    }
    .checklist th, .fit-table th {
      background:#eff6ff;
      color:var(--brand-dark);
      font-size:16px;
    }
    .callout {
      border-left:5px solid var(--accent);
      background:#fff8eb;
      padding:18px 20px;
      border-radius:0 12px 12px 0;
      margin:22px 0;
    }
    figure {
      margin: 28px 0 30px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:#fff;
    }
    figure img {
      display:block;
      width:100%;
      height:auto;
      background:#fff;
    }
    figcaption {
      padding:14px 18px;
      font-size:15px;
      color:var(--muted);
      border-top:1px solid var(--line);
      background:#fbfdff;
    }
    .cta-panel {
      margin: 34px 0;
      padding: 26px 28px;
      border-radius: 20px;
      background: linear-gradient(135deg, #eff6ff, #f8fbff);
      border:1px solid #cfe0f4;
    }
    .cta-panel h3 {
      margin-top:0;
    }
    .faq-item {
      border-top:1px solid var(--line);
      padding:18px 0;
    }
    .faq-item:last-child {
      border-bottom:1px solid var(--line);
    }
    .small-note {
      color:var(--muted);
      font-size:15px;
    }
    .footer-note {
      margin-top:28px;
      padding-top:20px;
      border-top:1px solid var(--line);
      font-size:15px;
      color:var(--muted);
    }
    @media (max-width: 760px) {
      .hero, .content { padding:28px 20px 40px; }
      h1 { font-size:32px; }
      h2 { font-size:28px; }
      h3 { font-size:22px; }
      p, li { font-size:17px; }
    }