:root{color-scheme:light;--ink:#101827;--navy:#102c5c;--blue:#1c58a5;--red:#c84d35;--paper:#f4f6f9;--line:#d5dce7}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;line-height:1.75}main{max-width:760px;margin:8vh auto;padding:48px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 20px 60px #102c5c18}h1{font-size:clamp(2rem,7vw,4rem);line-height:1.1;color:var(--navy);letter-spacing:-.04em}h2{color:var(--navy)}.eyebrow{color:var(--red);font-weight:800;letter-spacing:.08em}nav{display:flex;gap:12px;margin:32px 0}a{color:var(--blue);font-weight:700}nav a{padding:10px 16px;border:1px solid var(--line);border-radius:999px;text-decoration:none}section{margin-top:36px;padding:22px;background:#f8eef0;border-radius:16px}@media(max-width:720px){main{margin:0;padding:28px 20px;border:0;border-radius:0;min-height:100vh}}