:root{--brand:#1f3a93;--brand-dark:#16296b;--ink:#0f172a;--muted:#475569;--line:#e2e8f0;--bg:#f8fafc}
*{box-sizing:border-box}
body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}
header.top{background:#fff;border-bottom:1px solid var(--line)}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
header.top .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding-top:14px;padding-bottom:14px}
.logo{font-weight:700;color:var(--brand);text-decoration:none;font-size:18px}
nav a{margin-left:16px;font-size:14px;text-decoration:none;color:var(--muted)}
nav a:hover{color:var(--brand)}
.hero{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;padding:56px 0}
.hero h1{margin:0 0 12px;font-size:34px;line-height:1.2}
.hero p{margin:0 0 22px;font-size:18px;max-width:640px;opacity:.95}
.btn{display:inline-block;background:#fff;color:var(--brand);font-weight:600;padding:12px 22px;border-radius:10px;text-decoration:none}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin:24px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.card h3{margin:0 0 6px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:15px}
main{padding:36px 0 48px}
main h1{font-size:28px;margin:0 0 4px;line-height:1.25}
main h2{font-size:20px;margin:30px 0 8px}
main p,main li{color:#1e293b}
main ul{padding-left:22px}
.meta{color:var(--muted);font-size:14px;margin-bottom:24px}
.box{background:#eef2ff;border:1px solid #c7d2fe;border-radius:12px;padding:14px 16px;margin:14px 0}
footer{border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:14px;padding:22px 0}
footer a{margin-right:16px}
@media(max-width:560px){.hero h1{font-size:27px}nav a{margin-left:0;margin-right:14px}}