:root{--ink:#101828;--sub:#475467;--faint:#98a2b3;--line:#eaecf0;--bg:#f5f6fa;--blue:#4f46e5;--green:#12b76a;--amber:#f59e0b;--red:#e5484d}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font:17px/1.6 -apple-system,"Segoe UI",Inter,Roboto,Arial,sans-serif}
a{color:var(--blue)}.wrap{max-width:920px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line)}header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
nav a{color:var(--sub);text-decoration:none;margin-left:18px;font-size:15px}
.hero{background:var(--bg);padding:56px 0 48px}.hero h1{font-size:40px;line-height:1.15;letter-spacing:-.02em;margin:14px 0 12px}
.hero p{font-size:19px;color:var(--sub);max-width:640px;margin:0 0 24px}
.app{display:inline-flex;align-items:center;gap:10px;font-weight:600}.app small{color:var(--sub);font-weight:500}
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:600;padding:12px 20px;border-radius:10px}
.btn.soft{background:#fff;color:var(--ink);border:1px solid var(--line);margin-left:8px}
section{padding:44px 0}h2{font-size:26px;letter-spacing:-.01em;margin:0 0 18px}h3{font-size:18px;margin:0 0 6px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff}.card p{margin:0;color:var(--sub);font-size:16px}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px}
.promise{background:var(--bg)}.steps{counter-reset:s;list-style:none;padding:0;margin:0}.steps li{counter-increment:s;padding:10px 0 10px 44px;position:relative}
.steps li:before{content:counter(s);position:absolute;left:0;top:8px;width:30px;height:30px;border-radius:50%;background:#eef2ff;color:var(--blue);font-weight:700;text-align:center;line-height:30px}
.note{color:var(--sub);font-size:15px}.doc h2{margin-top:32px}.doc{padding:40px 0}.doc li{margin:6px 0}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--faint);font-size:14px}footer a{color:var(--sub);margin-right:16px}
@media(max-width:560px){.hero h1{font-size:30px}nav a{margin-left:12px}.btn.soft{margin:10px 0 0}}