:root{--accent:#2563eb;--bg:#f7f7fb;--text:#1f2937}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif;margin:0;color:var(--text);background:var(--bg)}
.container{max-width:1000px;margin:0 auto;padding:24px}
.site-header{background:#fff;border-bottom:1px solid #e6e7ee}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.logo img{height:44px}
nav a{margin-left:18px;color:var(--text);text-decoration:none}
.hero{padding:60px 0;background:linear-gradient(90deg,#fff,#f3f6ff)}
.hero h1{margin:0 0 12px;font-size:28px}
.btn{display:inline-block;padding:10px 16px;background:var(--accent);color:#fff;border-radius:6px;text-decoration:none}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;padding:32px 0}
.site-footer{padding:18px 0;text-align:center;color:#666}
article h2{margin-top:0}
form input,form textarea{width:100%;padding:8px;margin:6px 0 12px;border:1px solid #d6d7e2;border-radius:6px}
button{background:var(--accent);border:none;color:#fff;padding:10px 14px;border-radius:6px}