:root{--red:#B93A32;--orange:#D98A3A;--ink:#252322;--bg:#FAF8F5;--muted-bg:#F2EDE7;--text:#3B3836;--muted:#77716D;--accent:#E05A3F;--line:#DED6CF;--shadow:0 18px 44px rgba(37,35,34,.08);--radius:22px;--shell:min(1180px,calc(100% - 40px))}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.72}img{display:block;max-width:100%;height:auto}a{color:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;padding:10px 14px;z-index:100}.skip-link:focus{left:8px}.site-header{position:sticky;top:0;z-index:20;background:rgba(250,248,245,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(222,214,207,.8)}.header-inner{min-height:80px;display:flex;align-items:center;gap:32px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}.brand 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p{font-size:1.06rem}.prose-image{width:100%;max-height:380px;object-fit:cover;border-radius:24px;margin:28px 0}.faq-list{display:grid;gap:12px;margin-top:30px}.faq-list details{background:white;border:1px solid var(--line);border-radius:14px;padding:16px 18px}.faq-list summary{font-weight:750;cursor:pointer;color:var(--ink)}.error-page{min-height:62vh;padding-top:100px}.site-footer{background:#211f1e;color:#d8d1cc;padding:50px 0 24px}.footer-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px}.footer-grid strong{color:#fff;font-size:1.25rem}.footer-grid nav{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.footer-grid a{color:#d8d1cc}.footer-bottom{border-top:1px solid #47413e;margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;color:#908985;font-size:.86rem}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}@media(max-width:900px){:root{--shell:min(100% - 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.guide-hero{display:grid;grid-template-columns:1fr .8fr;gap:48px;align-items:center;padding:58px 0 48px}.guide-hero h1{margin:0;color:var(--ink);font-size:clamp(2.2rem,5vw,4.5rem);line-height:1.05;letter-spacing:-.04em}.guide-hero img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:26px}.guide-layout{display:grid;grid-template-columns:260px minmax(0,760px);gap:62px;align-items:start;padding-bottom:82px}.guide-toc{position:sticky;top:105px;display:grid;gap:7px;padding:18px;border:1px solid var(--line);background:white;border-radius:18px;max-height:calc(100vh - 130px);overflow:auto}.guide-toc a{font-size:.86rem;color:var(--muted);text-decoration:none;padding:5px 0}.guide-content section{padding:0 0 30px;margin-bottom:32px;border-bottom:1px solid var(--line);scroll-margin-top:110px}.guide-content h2{margin:0 0 12px;color:var(--ink);font-size:1.6rem}.guide-content p{font-size:1.05rem}.guide-number{margin:0!important;color:var(--orange);font-size:.82rem!important;font-weight:800}@media(max-width:900px){.guide-hero,.guide-layout{grid-template-columns:1fr}.guide-toc{position:static;max-height:none;grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.guide-toc{grid-template-columns:1fr}}