:root{
  --accent:#1e3a8a;
  --muted:#6b7280;
  --bg:#f4f4f9;
  --card:#fff;
  --radius:10px;
}
*{box-sizing:border-box}
body{font-family:"Segoe UI",Roboto,Arial,sans-serif;margin:0;background:var(--bg);color:#222}
.container{max-width:1100px;margin:0 auto;padding:24px;}
.site-header{background:var(--accent);color:#fff;position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 24px}
.brand{font-weight:700;color:#fff;text-decoration:none;font-size:18px}
.main-nav .nav-link{color:#e6eefc;text-decoration:none;margin-left:18px;font-weight:600}
.main-nav .nav-link.active{border-bottom:3px solid rgba(255,255,255,0.18);padding-bottom:6px}
.hero{padding:64px 0;text-align:center}
.hero h1{font-size:32px;margin:0 0 12px}
.lead{color:var(--muted);max-width:780px;margin:0 auto 18px}
.btn{background:var(--accent);color:#fff;padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:700;display:inline-block}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:40px 0}
.features article{background:var(--card);padding:20px;border-radius:var(--radius);box-shadow:0 6px 18px rgba(20,20,40,0.05)}
.service-list article{background:var(--card);padding:18px;border-radius:8px;margin-bottom:12px;box-shadow:0 6px 14px rgba(20,20,40,0.04)}
.site-footer{background:var(--accent);color:#fff;padding:18px 0;margin-top:40px;text-align:center}
.contact-page{max-width:820px;margin:30px auto}
.contact-form{display:grid;gap:12px}
.contact-form label{display:block;font-weight:600;color:var(--muted)}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #e6e9ef;background:#fff}
.contact-info{margin-top:18px;color:var(--muted)}
@media (max-width:720px){.header-inner{flex-direction:column;gap:10px}.main-nav{display:flex;flex-wrap:wrap;justify-content:center}.hero{padding:40px 12px}}