:root{
  --bg:#05070a;
  --panel:#0e1218;
  --panel2:#111823;
  --text:#f5f7fb;
  --muted:#9aa7b7;
  --line:#1e2936;
  --accent:#64d6ff;
  --accent2:#1da7dc;
  --ok:#39d98a;
  --radius:18px;
  --shadow:0 18px 50px rgba(0,0,0,.32);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(29,167,220,.14), transparent 60%),
    linear-gradient(180deg,#05070a 0%,#070a0f 100%);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Thai",Tahoma,sans-serif;
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.topbar{
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(5,7,10,.76);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.2px}
.logo{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#70e2ff,#31b6e7);
  color:#071018;font-weight:900;box-shadow:0 8px 24px rgba(49,182,231,.22)
}
.brand b span{color:var(--accent)}
.menu{display:flex;gap:20px;color:#c7d0db;font-size:14px}
.menu a:hover{color:#fff}
.hero{padding:88px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.eyebrow{color:var(--accent);font-weight:700;font-size:14px;letter-spacing:.12em;text-transform:uppercase}
h1{font-size:clamp(42px,6vw,76px);line-height:1.02;margin:12px 0 18px;letter-spacing:-.035em}
h1 span{color:var(--accent)}
.lead{font-size:clamp(18px,2vw,22px);color:#bac6d4;max-width:700px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:12px;border:1px solid var(--line);background:#111822;color:#fff;font-weight:700}
.btn.primary{background:linear-gradient(135deg,#6ae0ff,#33bce9);color:#071018;border:0}
.btn:hover{transform:translateY(-1px)}
.device{
  min-height:430px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(180deg,#101720,#0a0f15);
  box-shadow:var(--shadow);padding:22px;display:grid;place-items:center;position:relative;overflow:hidden
}
.device:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(71,197,240,.14);filter:blur(40px);top:-170px;right:-140px}
.screen{width:100%;aspect-ratio:16/10;background:#020304;border:1px solid #1c2530;border-radius:18px;padding:24px;position:relative;overflow:hidden}
.screen-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #151d27;padding-bottom:16px}
.screen-brand{font-weight:900;font-size:24px}
.screen-brand span{color:var(--accent)}
.pill{border:1px solid #243140;border-radius:999px;padding:6px 10px;font-size:13px;color:#b7c3d0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.card{aspect-ratio:2/3;border-radius:10px;background:linear-gradient(145deg,#17212c,#0d1219);border:1px solid #1e2b39;position:relative;overflow:hidden}
.card:after{content:"";position:absolute;left:0;right:0;bottom:0;height:36%;background:linear-gradient(transparent,rgba(0,0,0,.9))}
.card:nth-child(2){background:linear-gradient(145deg,#26354a,#11161f)}
.card:nth-child(3){background:linear-gradient(145deg,#3a241d,#11161f)}
.section{padding:56px 0}
.section h2{font-size:clamp(30px,4vw,46px);margin:0 0 10px;letter-spacing:-.02em}
.section .intro{color:var(--muted);max-width:760px}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.feature{background:linear-gradient(180deg,#0e141c,#0b1016);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.feature h3{margin:10px 0 8px;font-size:19px}
.feature p{margin:0;color:var(--muted);font-size:15px}
.icon{width:40px;height:40px;border-radius:11px;background:rgba(100,214,255,.12);display:grid;place-items:center;color:var(--accent);font-weight:900}
.notice{border:1px solid rgba(100,214,255,.2);background:rgba(100,214,255,.07);border-radius:16px;padding:18px;color:#c8d7e4}
.policy{padding:56px 0 80px}
.policy article{max-width:860px;margin:0 auto;background:rgba(12,17,23,.78);border:1px solid var(--line);border-radius:22px;padding:clamp(22px,4vw,42px);box-shadow:var(--shadow)}
.policy h1{font-size:clamp(34px,5vw,52px);margin-top:0}
.policy h2{font-size:23px;margin:34px 0 10px}
.policy h3{font-size:18px;margin:24px 0 8px}
.policy p,.policy li{color:#c0cad5}
.policy ul{padding-left:20px}
.small{font-size:13px;color:var(--muted)}
.kicker{font-size:14px;color:var(--accent);font-weight:800}
footer{border-top:1px solid rgba(255,255,255,.07);padding:26px 0 42px;color:#8f9baa;font-size:14px}
.footer-grid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-links a:hover{color:#fff}
@media(max-width:840px){
  .hero-grid{grid-template-columns:1fr}
  .device{min-height:340px}
  .features{grid-template-columns:1fr}
  .menu{display:none}
}
@media(max-width:520px){
  .hero{padding-top:54px}
  .cards{gap:8px}
  .screen{padding:16px}
  .screen-brand{font-size:19px}
}