*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#fff;--fg:#1a1d21;--mut:#5d656e;--line:#e4e7eb;--acc:#2f6fd0;--soft:#f6f8fa}
@media (prefers-color-scheme:dark){:root{--bg:#15181c;--fg:#e8eaed;--mut:#9aa3ad;--line:#2a2f36;--acc:#6fa3f0;--soft:#1c2026}}
body{background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);padding:18px 0}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo{font-weight:700;font-size:18px;letter-spacing:-.2px}
.logo span{color:var(--acc)}
nav a{color:var(--mut);text-decoration:none;margin-left:20px;font-size:15px}
nav a:hover{color:var(--fg)}
.hero{padding:64px 0 48px}
.hero h1{font-size:34px;line-height:1.2;letter-spacing:-.5px;max-width:18ch}
.hero p{color:var(--mut);margin-top:16px;max-width:60ch;font-size:17px}
.btn{display:inline-block;margin-top:28px;background:var(--acc);color:#fff;text-decoration:none;padding:12px 22px;border-radius:8px;font-weight:600;font-size:15px}
section{padding:40px 0;border-top:1px solid var(--line)}
h2{font-size:22px;margin-bottom:22px;letter-spacing:-.3px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:20px}
.card h3{font-size:16px;margin-bottom:8px}
.card p{color:var(--mut);font-size:15px}
.num{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--acc);color:#fff;font-size:13px;font-weight:700;margin-bottom:10px}
dl dt{font-weight:600;margin-top:18px}
dl dd{color:var(--mut);margin-top:6px}
footer{border-top:1px solid var(--line);padding:28px 0 48px;color:var(--mut);font-size:14px}
footer a{color:var(--mut)}
@media(max-width:600px){.hero{padding:40px 0 32px}.hero h1{font-size:26px}}