*{box-sizing:border-box}body{margin:0;font:17px/1.6 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#f6f8fb;color:#14171f}
header{display:flex;justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:28px 24px}
.logo{font-weight:700;letter-spacing:.2px;text-decoration:none;color:inherit;display:flex;gap:10px;align-items:center}
.logo i{width:14px;height:14px;border-radius:4px;background:#2f6fed;display:inline-block}
nav a{margin-left:20px;color:inherit;opacity:.7;text-decoration:none}nav a:hover,nav a.on{opacity:1;color:#2f6fed}
main{max-width:960px;margin:0 auto;padding:24px}h1{font-size:40px;line-height:1.15;margin:24px 0 12px}
.lead{font-size:20px;opacity:.75;max-width:640px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:36px 0}
.card{background:#fff;border-radius:14px;padding:22px;box-shadow:0 1px 2px rgba(0,0,0,.05),0 8px 24px rgba(0,0,0,.04)}
.card b{display:block;width:28px;height:4px;background:#2f6fed;border-radius:2px;margin-bottom:14px}
footer{max-width:960px;margin:40px auto;padding:24px;opacity:.55;font-size:14px}