:root{--brand:#1d4e89;--brand-d:#123866;--accent:#f4b23e;--ink:#1c2430;--muted:#5b6675;--bg:#f5f7fa;--card:#fff;--r:14px}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--brand)}.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
header{background:#fff;border-bottom:1px solid #e3e8ee;position:sticky;top:0;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.35rem;color:var(--brand);text-decoration:none}.logo span{color:var(--accent)}
nav a{margin-left:18px;color:var(--ink);text-decoration:none;font-weight:500}
.hero{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;padding:70px 0}
.hero h1{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.15;margin:0 0 14px}
.search{background:#fff;border-radius:var(--r);padding:12px;display:flex;gap:10px;max-width:640px;margin-top:24px;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.search input{flex:1;padding:14px;border:1px solid #cfd8e3;border-radius:10px;font-size:1rem;min-width:0}
.btn{display:inline-block;background:var(--accent);color:var(--ink);border:0;border-radius:10px;padding:12px 20px;font-weight:700;font-size:1rem;cursor:pointer;text-decoration:none}
section{padding:50px 0}h2{font-size:1.8rem;margin:0 0 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.card{background:var(--card);border-radius:var(--r);padding:22px;box-shadow:0 2px 10px rgba(0,0,0,.06);text-decoration:none;color:var(--ink);display:block}
.card h3{margin:0 0 6px}.card p{margin:0;color:var(--muted)}.tag{font-size:.75rem;font-weight:700;color:var(--brand);text-transform:uppercase}
.ex{border:2px dashed var(--accent)}.hidden{display:none}
form label{display:block;margin:12px 0 4px;font-weight:600}form input,form select,form textarea{width:100%;padding:12px;border:1px solid #cfd8e3;border-radius:10px;font-size:1rem}
footer{background:#111a26;color:#c9d2de;padding:30px 0;font-size:.9rem}footer a{color:#fff;margin-right:14px}
@media(max-width:600px){nav a{margin:0 12px 0 0}.nav{padding:10px 0}.search{flex-direction:column}}