:root{font:16px/1.6 system-ui,sans-serif;color:#17202a;background:#f4f7fb}body{margin:0}main{max-width:760px;margin:auto;padding:8rem 1.5rem}.kicker{letter-spacing:.16em;font-weight:700;color:#475569}.lead{font-size:1.3rem}nav{display:flex;gap:1rem;margin:2rem 0}a{color:#075985}section{border-top:1px solid #cbd5e1;padding:1.5rem 0}h1{font-size:clamp(2.3rem,6vw,4.8rem);line-height:1.05}