.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.standard-hero{padding:54px 0 46px;background:linear-gradient(140deg,#fff 35%,#edf4fa);border-bottom:1px solid var(--line)}.standard-hero-grid{display:grid;grid-template-columns:1fr 330px;gap:60px;align-items:end}.breadcrumbs{display:flex;gap:8px;margin-bottom:30px;color:var(--muted);font-size:13px}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{color:var(--blue)}.standard-guide h1{margin:0;color:var(--navy);font-size:clamp(38px,6vw,62px);letter-spacing:-.055em;line-height:1.08}.guide-subtitle{margin:10px 0 0;color:var(--red);font-size:19px;font-weight:750}.guide-lead{max-width:700px;margin:20px 0 0;color:var(--muted);font-size:17px;line-height:1.7}.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.meta-row span{padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:12px}.completion-card{padding:25px;border-left:4px solid var(--green);border-radius:4px 18px 18px 4px;background:var(--green-soft)}.completion-card strong{color:var(--green)}.completion-card p{margin:9px 0 0;line-height:1.7}.standard-layout{display:grid;grid-template-columns:220px minmax(0,760px);gap:70px;align-items:start;padding-top:48px}.standard-toc{position:sticky;top:108px;display:flex;flex-direction:column;gap:6px;padding:18px;max-height:calc(100vh - 130px);overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}.standard-toc strong{margin-bottom:8px;color:var(--navy)}.standard-toc a{padding:8px 10px;border-radius:9px;color:var(--muted);font-size:13px;text-decoration:none}.standard-toc a:hover{background:var(--blue-soft);color:var(--blue)}.standard-content section{scroll-margin-top:100px;padding:28px 0 50px;border-bottom:1px solid var(--line)}.standard-content 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36px;padding-left:64px}.step-number{position:absolute;left:0;top:0;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--navy);color:#fff;font-size:14px;font-weight:800}.step h3{margin:0;color:var(--navy);font-size:21px}.step-body{margin-top:8px;color:#3b4654;line-height:1.9}.step-body p{margin:0}.inline-note,.inline-warning{margin-top:14px;padding:12px 14px;border-radius:11px;font-size:13px}.inline-note{background:var(--blue-soft);color:#315c7e}.inline-warning{background:var(--red-soft);color:#8e1b2a}.point-list{display:grid;gap:12px;margin:12px 0 0;padding:0;list-style:none}.point-list li{position:relative;padding:16px 18px 16px 46px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#3b4654;line-height:1.75}.point-list li:before{content:"✓";position:absolute;left:17px;top:16px;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--green-soft);color:var(--green);font-size:12px;font-weight:900}.instruction-images{display:grid;grid-template-columns:1fr;gap:14px;margin-top:18px}.instruction-images figure{display:flex;flex-direction:column;margin:0;padding:11px;border:1px solid #d8e4ef;border-radius:15px;background:#f7fafc}.instruction-images .figure-link{display:grid;place-items:center;min-height:160px;overflow:hidden;border-radius:9px;background:#fff}.instruction-images img{display:block;width:100%;height:auto;max-height:410px;object-fit:contain}.instruction-images figcaption{display:flex;flex-direction:column;gap:4px;margin-top:9px;color:var(--muted);font-size:12px;line-height:1.55;text-align:center}.instruction-images figcaption span{color:var(--blue);font-size:11px}.point-list .instruction-images{margin-left:-28px}details{margin:10px 0;border:1px solid var(--line);border-radius:14px;background:#fff}summary{padding:17px 19px;cursor:pointer;color:var(--navy);font-weight:750}details p{margin:0;padding:0 19px 18px;color:var(--muted);line-height:1.75}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.related-grid a{padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff;text-decoration:none}.related-grid strong,.related-grid span{display:block}.related-grid strong{color:var(--navy)}.related-grid span{margin-top:7px;color:var(--muted);font-size:13px}@media(max-width:900px){.standard-hero-grid{grid-template-columns:1fr;gap:30px}.standard-layout{grid-template-columns:1fr}.standard-toc{position:static;display:grid;grid-template-columns:repeat(3,1fr);max-height:none}.standard-toc strong{grid-column:1/-1}}@media(max-width:600px){.standard-hero{padding-top:38px}.prep-grid,.standard-toc,.related-grid{grid-template-columns:1fr}.step{padding-left:0;padding-top:56px}}