:root{color-scheme:dark;--navy:#071d36;--panel:#102e50;--panel2:#153b61;--ink:#f7f2e8;--muted:#c8d5e3;--gold:#ffb04a;--line:#315170;--warn:#ffda86;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--navy);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.62}.site-header{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px max(22px,calc((100vw - var(--max))/2));border-bottom:1px solid var(--line);background:#071d36f2;position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.brand{font-weight:850;font-size:1.08rem;color:var(--ink);text-decoration:none}.site-header nav{display:flex;gap:16px;flex-wrap:wrap}a{color:var(--gold)}main{max-width:var(--max);margin:auto;padding:52px 22px 80px}.hero{max-width:900px}.eyebrow,.chapter{color:var(--gold);font-weight:850;letter-spacing:.1em}.hero h1{font-size:clamp(2.35rem,7vw,5rem);line-height:1.02;margin:.18em 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var(--line);border-radius:14px;padding:18px}.steps li:before{content:counter(step);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--gold);color:var(--navy);font-weight:900;margin-bottom:10px}.steps span{display:block;color:var(--muted);margin-top:5px}.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:38px}.contents{align-self:start;position:sticky;top:90px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px}.contents h2{font-size:1rem;margin-top:0}.contents ol{padding-left:22px}.contents li{margin:7px 0}.print-note{font-size:.86rem;color:var(--muted);border-top:1px solid var(--line);padding-top:13px}.guide>section{scroll-margin-top:95px;margin:0 0 62px;padding-bottom:48px;border-bottom:1px solid var(--line)}.guide h2{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.12;margin:.1em 0 .7em}.guide h3{margin-top:28px}.chapter{margin:0}.guide li{margin:8px 0}.table-wrap{overflow-x:auto;margin:22px 0}table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:14px;overflow:hidden}th,td{padding:14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:#183f68;color:var(--gold)}code{background:#183b61;padding:2px 6px;border-radius:5px;color:#fff}dl{display:grid;grid-template-columns:minmax(170px,.55fr) 1fr;gap:0 20px}dt,dd{padding:15px 0;border-bottom:1px solid var(--line);margin:0}dt{font-weight:800;color:var(--gold)}dd{color:var(--muted)}footer{max-width:var(--max);margin:auto;padding:24px 22px 50px;border-top:1px solid var(--line);color:var(--muted);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}@media(max-width:850px){.layout{display:block}.contents{position:static;margin-bottom:38px}.site-header{position:static}.guide>section{scroll-margin-top:15px}.journey-heading{grid-template-columns:1fr}dl{display:block}dt{padding-bottom:2px}dd{padding-top:2px}}@media(max-width:680px){.journey-grid{grid-template-columns:1fr}}@media(max-width:560px){main{padding-top:34px}.site-header{align-items:flex-start;flex-direction:column}.quick-start{padding:20px}.hero h1{font-size:2.45rem}.journey-card{padding:16px}}@media print{body{background:#fff;color:#111}.site-header,.contents{display:none}main{max-width:none;padding:0}.layout{display:block}.guide>section{break-inside:auto;border-color:#bbb;margin-bottom:28px;padding-bottom:20px}.quick-start,.notice,.callout,.warning,table,.journey-card{background:#fff!important;color:#111;border:1px solid #aaa}.steps li{background:#fff;color:#111}.steps 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