:root{
  --brand:#0b6bcb;
  --brand-dark:#084a8c;
  --ink:#1f2933; --muted:#52606d; --line:#e4e7eb; --bg:#f7f9fc; --card:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;color:var(--ink);background:#ffffff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.concept-banner{background:#fff4d6;color:#7a5b00;border-bottom:1px solid #f0d68a;font-size:.85rem;text-align:center;padding:8px 16px}
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;background:var(--brand);color:#fff;font-size:.9rem}
.brand-name{font-size:1.1rem}
.site-nav{display:flex;gap:20px;align-items:center}
.site-nav a{color:var(--muted);font-weight:600}
.site-nav a:hover{color:var(--brand-dark)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.2rem;padding:4px 10px;cursor:pointer}
.hero{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;padding:72px 0}
.hero h1{font-size:2.4rem;margin:0 0 12px;line-height:1.15}
.lede{font-size:1.15rem;color:inherit;opacity:.95}
.cta-row{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;border-radius:10px;padding:12px 20px;font-weight:700;border:2px solid transparent;cursor:pointer}
.btn-primary{background:#fff;color:var(--brand-dark)}
.btn-primary:hover{background:#f0f0f0;text-decoration:none}
.btn-ghost{border-color:#fff;color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);text-decoration:none}
.section{padding:56px 0}
.section h2{font-size:1.6rem;margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card h3{margin-top:0}
.feature{background:transparent}
.band{background:var(--bg);border-radius:16px}
.cta-band{text-align:center}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.contact-form{display:grid;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.contact-form label{display:grid;gap:6px;font-weight:600;color:var(--muted)}
.contact-form input,.contact-form textarea{padding:10px;border:1px solid var(--line);border-radius:8px;font:inherit}
.disclaimer{color:var(--muted);font-size:.9rem;font-style:italic}
.site-footer{background:#101828;color:#c3cad3;padding:36px 0;margin-top:40px}
.site-footer a{color:#e4e7eb}
.footer-brand{font-weight:700;color:#fff}
.footer-note{font-size:.82rem;opacity:.8}
.footer-copy{font-size:.8rem;opacity:.7}
@media (max-width:720px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--card);flex-direction:column;padding:12px 20px;border-bottom:1px solid var(--line)}
  .site-nav.open{display:flex}
  .hero{padding:48px 0}
  .hero h1{font-size:1.8rem}
  .contact-grid{grid-template-columns:1fr}
}