.rf-article{--ink:#172722;--muted:#52615b;--green:#109d45;--line:#dce8df;--soft:#f5faf6;--cream:#fbf8f1;max-width:1080px;margin:0 auto;padding:28px 18px 54px;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.72}
  .rf-article *{box-sizing:border-box}
  .rf-article h1{font-size:36px;line-height:1.18;margin:0 0 18px;letter-spacing:0;color:#12322d}
  .rf-article h2{font-size:25px;line-height:1.32;margin:36px 0 14px;color:#153d34}
  .rf-article h3{font-size:19px;line-height:1.38;margin:24px 0 10px;color:#203d36}
  .rf-article p{font-size:16px;margin:0 0 15px}
  .rf-article a{color:var(--green);text-decoration:none;font-weight:700}
  .rf-summary{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin:22px 0 24px}
  .rf-fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0 24px}
  .rf-box{border:1px solid var(--line);border-radius:10px;padding:18px;background:#fff}
  .rf-box h3{margin-top:0}
  .rf-table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:15px}
  .rf-table th,.rf-table td{border:1px solid var(--line);padding:12px;vertical-align:top;text-align:left}
  .rf-table th{background:var(--soft);color:#173e35}
  .rf-img{margin:24px 0;text-align:center}
  .rf-img img{display:block;max-width:100%;width:auto;height:auto;max-height:620px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff;margin:0 auto}
  .rf-img.small{max-width:760px;margin:24px auto}
  .rf-img.small img{max-width:100%}
  .rf-img figcaption{font-size:14px;color:var(--muted);margin-top:9px;text-align:left}
  .rf-callout{border-left:4px solid var(--green);background:var(--cream);padding:15px 18px;margin:22px 0}
  .rf-checklist{padding-left:20px;margin:12px 0 24px}
  .rf-checklist li{margin:8px 0;font-size:16px}
  .rf-cta{background:#123d35;color:#fff;border-radius:12px;padding:22px;margin:34px 0}
  .rf-cta h2{color:#fff;margin-top:0}
  .rf-cta p{color:#edf8f1}
  .rf-cta a{display:inline-block;background:#fff;color:#123d35;border-radius:6px;padding:10px 14px;margin:8px 8px 0 0;text-decoration:none}
  .rf-faq dt{font-weight:700;margin:18px 0 6px;color:#173e35}
  .rf-faq dd{margin:0 0 12px}
  .rf-source-link,.rf-footnote-ref,.rf-footnote-backref{color:#109d45!important;text-decoration:underline!important;text-underline-offset:2px;font-weight:700}
  .rf-sources{border-top:1px solid var(--line);margin-top:34px;padding-top:16px}
  .rf-sources ol{padding-left:0;margin-left:0;list-style-position:inside}
  .rf-sources li{margin:8px 0;color:var(--ink)}
  .rf-author{border-top:1px solid var(--line);margin-top:34px;padding-top:20px}
  .rf-author img{width:160px;max-width:100%;border-radius:12px;height:auto}
  @media(max-width:760px){.rf-article h1{font-size:29px}.rf-fit-grid{grid-template-columns:1fr}.rf-table{font-size:14px}.rf-table th,.rf-table td{padding:10px}.rf-cta a{display:block;margin-right:0}}