:root{
  --bg:#f7f7f8;
  --accent:#0b67ff;
  --text:#222;
}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,'Helvetica Neue',Arial;line-height:1.4;color:var(--text);margin:0;background:var(--bg)}
.container{max-width:1000px;margin:0 auto;padding:1rem}
.hero{background:linear-gradient(180deg,rgba(11,103,255,0.12),transparent);padding:4rem 0;text-align:center}
.hero h1{margin:0;font-size:clamp(1.6rem,3vw,2.6rem)}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:.6rem 1rem;border-radius:6px;text-decoration:none}
.nav{background:#fff;border-bottom:1px solid #e6e6e6;position:sticky;top:0;z-index:20}
.nav-inner{display:flex;gap:1rem;align-items:center}
.nav a{color:var(--text);text-decoration:none;padding:.8rem 0}
.section{padding:3rem 0}
.alt{background:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.card{background:#fff;padding:1rem;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.06)}
.placeholder{background:linear-gradient(90deg,#e9eefc,#f6f9ff);height:160px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#6b78b2}
.form label{display:block;margin-bottom:.8rem}
.form input,.form textarea{width:100%;padding:.6rem;border:1px solid #ddd;border-radius:6px}
.footer{padding:1rem 0;text-align:center;font-size:.9rem;color:#666}

@media (min-width:700px){.nav-inner{justify-content:space-between}}