body{margin:0;background:#f4f7f2;color:#183d39;font:17px/1.7 system-ui,sans-serif}main{max-width:1000px;margin:auto;padding:60px 24px}nav{display:flex;justify-content:space-between;gap:20px}small{letter-spacing:2px}h1{font-size:clamp(38px,7vw,72px);line-height:1.1;max-width:760px}p{max-width:740px;color:#526b62}.button{display:inline-block;margin:20px 10px 10px 0;padding:14px 24px;border-radius:9px;background:#183d39;color:white;text-decoration:none}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin:35px 0}.features section{padding:24px;background:white;border:1px solid #e1e8dc;border-radius:12px}a{color:#183d39}.notice{padding:20px;background:#e9efdf;border-radius:10px;font-size:14px}footer{margin-top:35px;font-size:14px}