:root{--accent:#0ea5a4;--dark:#0f1724;--muted:#6b7280}
*{box-sizing:border-box}body{font-family:Arial,Helvetica,sans-serif;margin:0;color:var(--dark);background:#fafafa}
.container{max-width:1100px;margin:0 auto;padding:28px}
.header{background:#fff;box-shadow:0 4px 18px rgba(2,6,23,0.06);position:sticky;top:0;z-index:50}
.header .inner{display:flex;justify-content:space-between;align-items:center;padding:16px 28px}
.brand{font-weight:700}
.nav{display:flex;gap:14px}
.nav a{color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px}
.nav a:hover{background:#f1fbfa;color:var(--dark)}
.hero{display:flex;gap:24px;align-items:center;padding:48px 0}
.hero img{max-width:100%;border-radius:10px}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;padding:16px;border-radius:12px;box-shadow:0 8px 28px rgba(2,6,23,0.04)}
.section{padding:40px 0;border-top:1px solid #eef2f7}
.footer{background:#0b1220;color:#e6eef6;padding:40px 0;margin-top:28px}
.footer .col{flex:1}
.footer a{color:#cfe6e3;text-decoration:none}
.small{font-size:13px;color:var(--muted)}
.form-row{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}
.form-row .field{flex:1;min-width:180px}
label{display:block;font-size:14px;margin-bottom:6px}
input[type=text], input[type=email], textarea, select{width:100%;padding:10px;border:1px solid #e6eef6;border-radius:8px}
textarea{min-height:120px;resize:vertical}
.btn{display:inline-block;padding:10px 14px;background:var(--accent);color:#fff;border-radius:8px;text-decoration:none;border:none;cursor:pointer}
.notice{background:#fff3cd;padding:10px;border-radius:8px;border-left:4px solid #f59e0b}
@media(max-width:880px){.grid-3{grid-template-columns:1fr}.hero{flex-direction:column}.nav{display:none}}