:root{--ink:#172722;--muted:#52615b;--green:#109d45;--deep:#0f403f;--line:#dbe5dc;--soft:#f4f8f2;--paper:#fff;--blue:#254a64;--gold:#9a6a24}
    html,body{margin:0;padding:0;background:#eef3ef;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.66}
    *{box-sizing:border-box}
    a{color:#0b6b42;text-underline-offset:3px}
    img{max-width:100%;display:block}
    .rf-page{max-width:1120px;margin:0 auto;background:var(--paper);padding:34px 48px 72px}
    .rf-kicker{margin:0 0 10px;color:#49635a;text-transform:uppercase;font-size:13px;font-weight:700;letter-spacing:.08em}
    h1{font-size:40px;line-height:1.14;margin:0 0 16px;letter-spacing:0}
    h2{font-size:27px;line-height:1.25;margin:38px 0 12px;letter-spacing:0}
    h3{font-size:19px;line-height:1.3;margin:22px 0 8px}
    p,li,td,th{font-size:16px}
    .rf-lead{font-size:18px;color:#36453f;max-width:860px;margin:0 0 22px}
    .rf-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,410px);gap:26px;align-items:center;border:1px solid var(--line);background:#f6f8f4;border-radius:8px;padding:24px;margin:18px 0 28px}
    .rf-hero-copy{min-width:0}
    .rf-hero-copy ul{padding-left:18px;margin:14px 0 20px}
    .rf-hero-copy li{margin:6px 0}
    .rf-hero-img{margin:0}
    .rf-hero-img a,.rf-figure a{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
    .rf-hero-img img{width:100%;height:auto;object-fit:contain;background:#fff}
    .rf-caption,.rf-figure figcaption,.rf-cert-caption{padding:10px 12px;color:var(--muted);font-size:14px;font-weight:700;background:#fff;border-top:1px solid var(--line)}
    .rf-summary{background:#edf7ef;border-left:4px solid var(--green);padding:16px 18px;border-radius:0 8px 8px 0;margin:22px 0 26px}
    .rf-summary h2{font-size:22px;margin:0 0 8px}
    .rf-fit{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0 26px}
    .rf-box{border:1px solid var(--line);border-radius:8px;background:#fff;padding:16px}
    .rf-box.good{border-left:4px solid var(--green)}
    .rf-box.warn{border-left:4px solid var(--gold)}
    .rf-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 4px}
    .rf-cta{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 14px;border-radius:6px;background:var(--deep);color:#fff;text-decoration:none;font-weight:700}
    .rf-cta.alt{background:var(--blue)}
    .rf-cta.third{background:#6f552f}
    table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:15px}
    th,td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}
    th{background:#edf3ee}
    .rf-proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 26px}
    .rf-proof{border:1px solid var(--line);border-radius:8px;padding:14px;background:#fff}
    .rf-proof strong{display:block;margin-bottom:4px;color:var(--deep)}
    .rf-note{background:#fff8e8;border-left:4px solid var(--gold);padding:14px 17px;border-radius:0 8px 8px 0;margin:20px 0}
    .rf-figure{margin:24px 0}
    .rf-figure img{width:100%;height:auto;max-height:390px;object-fit:contain;background:#fff}
    .rf-cert-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 8px}
    .rf-cert{border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}
    .rf-cert img{width:100%;height:118px;object-fit:contain;background:#fff}
    .rf-checklist{border:1px solid var(--line);background:#fbfdfb;border-radius:8px;padding:18px;margin:20px 0}
    .rf-checklist ol{margin:10px 0 0;padding-left:22px}
    .rf-checklist li{margin:8px 0}
    .rf-final{background:#edf5f6;border:1px solid #c9d9da;border-radius:8px;padding:20px;margin:28px 0}
    .rf-faq,.rf-sources,.rf-author{border:1px solid var(--line);border-radius:8px;background:#fff;padding:22px;margin:28px 0}
    .rf-author{display:grid;grid-template-columns:94px minmax(0,1fr);gap:16px;align-items:center}
    .rf-author img{width:94px;height:94px;border-radius:8px;object-fit:cover}
    .rf-source-link{color:#0b6b42;font-weight:700}
    .rf-source-name{color:#26332f;font-weight:700;text-decoration:underline;text-underline-offset:3px}
    .rf-footnote-ref{color:var(--green);font-weight:700;text-decoration:underline}
    .rf-footnote-backref{color:var(--green);font-weight:700;text-decoration:underline}
    .rf-sources li p{color:#26332f}
    code{background:#eef3ef;padding:1px 4px;border-radius:4px}
    @media(max-width:860px){
      .rf-page{padding:22px 14px 54px}
      h1{font-size:29px}
      h2{font-size:23px}
      .rf-hero,.rf-fit{grid-template-columns:1fr}
      .rf-proof-grid,.rf-cert-strip{grid-template-columns:1fr}
      table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
      th,td{min-width:170px}
      .rf-author{grid-template-columns:1fr}
    }