:root { --primary:#5B7C99; --accent:#A8C3D6; --dark:#1F2A36; --bg:#F6F4EF; }
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: system-ui,-apple-system,"Segoe UI",sans-serif; color:var(--dark); background:var(--bg); line-height:1.6; }
a { color:var(--primary); text-decoration:none; }
.nav { display:flex; align-items:center; justify-content:space-between; padding:16px 24px; background:var(--dark); color:#fff; }
.nav a { color:#fff; }
.nav-brand { font-weight:800; font-size:18px; }
.nav-links { display:flex; gap:16px; flex-wrap:wrap; }
.hero { display:flex; align-items:center; gap:32px; padding:64px 24px; max-width:1080px; margin:0 auto; flex-wrap:wrap; }
.hero h1 { font-size:clamp(30px,5vw,48px); line-height:1.15; }
.hero-sub { font-size:18px; color:#555; margin:16px 0 24px; max-width:520px; }
.hero-art img { width:min(420px,100%); border-radius:20px; }
.btn { display:inline-block; padding:14px 28px; border-radius:999px; border:none; font-size:16px; font-weight:700; cursor:pointer; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-ghost { background:transparent; border:1px solid var(--primary); color:var(--primary); margin-top:12px; }
.section { padding:56px 24px; max-width:1080px; margin:0 auto; }
.section-alt { background:#fff; }
.section h2 { text-align:center; margin-bottom:32px; font-size:28px; }
.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:20px; }
.card, .step { background:var(--bg); border:1px solid #e5e0d8; border-radius:16px; padding:24px; }
.step { background:#fff; }
.steps { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:20px; }
.plan-card { max-width:440px; margin:0 auto; background:#fff; border:1px solid #e5e0d8; border-radius:20px; padding:32px; text-align:center; box-shadow:0 8px 30px rgba(0,0,0,.06); }
.plan-card ul { list-style:none; margin:20px 0; text-align:left; }
.plan-card li { padding:6px 0; }
.price { font-size:40px; font-weight:800; color:var(--primary); }
.price small { font-size:16px; color:#888; }
.faq { max-width:720px; margin:0 auto; }
.faq-item { border-bottom:1px solid #e5e0d8; padding:14px 0; }
.faq-item summary { font-weight:700; cursor:pointer; }
.footer { background:var(--dark); color:#cfd6dd; text-align:center; padding:32px 24px; margin-top:48px; }
.footer a { color:#fff; margin:0 10px; }
.compliance { margin:12px 0 4px; font-size:13px; color:#9aa5af; }
.digital-note { font-size:12px; color:#7d8891; }
.chat-body { min-height:100vh; display:flex; flex-direction:column; }
.chat-main { flex:1; text-align:center; padding:48px 24px; }
.ai-label { color:var(--primary); font-weight:700; margin:8px 0; }
.chat-hint { color:#666; margin-bottom:20px; }
.chat-footer { margin-top:0; }
.pricing-main { padding:56px 24px; text-align:center; }
.pricing-note { margin-top:24px; color:#777; }
.activate-box { margin-top:16px; }
.activate-box input, .activate-main input { width:100%; padding:13px 16px; border:1px solid #ddd; border-radius:10px; margin:10px 0; font-size:15px; }
.msg { min-height:20px; font-size:14px; margin-top:8px; }
.ok { color:#1e7e34; } .err { color:#c0392b; }
.activate-body { min-height:100vh; display:flex; align-items:center; justify-content:center; }
.activate-main { max-width:420px; width:100%; padding:24px; text-align:center; }
.activate-main h1 { color:var(--primary); }
.link { display:inline-block; margin-top:16px; }
@media (max-width:640px) {
  .nav { flex-direction:column; gap:10px; }
  .hero { padding:40px 20px; }
  .cards, .steps { grid-template-columns:1fr; }
}