/* V53: source-based guides and readable comparisons */
.seo-section{margin:48px 0}.seo-section>p{max-width:82ch}.seo-section h2{margin-bottom:20px}.seo-section details{background:#fff;border:1px solid #ccd9cc;border-radius:14px;padding:20px;margin:12px 0}.seo-section summary{font-weight:700;cursor:pointer}.seo-photo{margin:24px 0}.seo-photo img{display:block;width:100%;height:auto;max-height:440px;object-fit:cover;border-radius:18px}.seo-photo figcaption{font-size:.85rem;color:#486057;margin-top:8px}.seo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.seo-grid .panel{min-width:0}.seo-grid .seo-photo{margin:0 0 20px}.seo-grid img{height:220px;object-fit:cover}.seo-table{max-width:100%;overflow-x:auto;border:1px solid #cbd7cc;border-radius:14px;margin:24px 0}.seo-table table{border-collapse:collapse;min-width:560px;width:100%;background:#fff}.seo-table th,.seo-table td{padding:18px;text-align:left;vertical-align:top;border-bottom:1px solid #dce4dc}.seo-table th{background:#e9f0e8}.seo-table tr:last-child td{border:0}.seo-link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.seo-link-grid a{display:block}.seo-breadcrumb{font-size:.85rem;display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 24px}.seo-toc{border-left:4px solid #237468;padding:14px 20px;margin:24px 0}.seo-toc ul{display:flex;flex-wrap:wrap;gap:10px 24px;list-style:none;padding:0;margin:8px 0}.seo-sources{line-height:1.8}main.home-main>.seo-section{max-width:1240px;margin:50px auto;padding:0 24px}h2[id]{scroll-margin-top:110px}
@media(max-width:760px){.seo-grid,.seo-link-grid{grid-template-columns:1fr}.seo-section{margin:34px 0}.seo-photo img{max-height:320px}.seo-table th,.seo-table td{padding:12px}.seo-toc ul{display:block}.seo-toc li{margin:10px 0}.seo-breadcrumb{font-size:.8rem}}