:root{color-scheme:light;--ink:#14212b;--muted:#536572;--paper:#f4f8fb;--card:#fff;--line:#d9e5ec;--accent:#1769e0;--deep:#092f5b;--soft:#e9f2ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.68 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.wrap{width:min(1080px,calc(100% - 32px));margin:auto}header{padding:20px 0}nav{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center}a{color:var(--accent);font-weight:700}.brand{color:var(--deep);text-decoration:none;margin-right:auto}.hero{padding:58px 0 40px}h1,h2,h3{color:var(--deep);line-height:1.15}h1{max-width:880px;margin:.2em 0;font-size:clamp(2.5rem,7vw,5rem);letter-spacing:-.05em}.lead{max-width:760px;color:var(--muted);font-size:clamp(1.08rem,2vw,1.28rem)}section{padding:32px 0}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card,article.page{padding:clamp(22px,4vw,34px);border:1px solid var(--line);border-radius:18px;background:var(--card)}.card h3{margin-top:0}.notice{padding:24px;border-left:5px solid var(--accent);border-radius:0 14px 14px 0;background:var(--soft)}.page-wrap{width:min(880px,calc(100% - 32px));margin:auto}.page{margin:28px 0}.page h1{font-size:clamp(2.35rem,7vw,4.35rem)}p,li{color:var(--muted)}.steps{counter-reset:step}.steps li{margin:.8rem 0}.eyebrow{color:var(--accent);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem}footer{padding:32px 0 46px;color:var(--muted);font-size:.93rem}@media(max-width:680px){.grid{grid-template-columns:1fr}.hero{padding-top:30px}.brand{width:100%}}