:root{
  --bg:#07110f;--bg-soft:#0c1916;--card:#10211d;--line:#24413a;
  --text:#f4f7f5;--muted:#a8bbb4;--accent:#d8ff74;--accent-2:#8fe3c2;
  --max:1180px;--radius:24px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"Noto Sans Thai",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 40px),var(--max));margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(7,17,15,.78);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.12em}
.brand-mark{width:34px;height:34px;border:1px solid var(--accent);border-radius:10px;display:grid;place-items:center;transform:rotate(45deg)}
.brand-mark:before{content:"";width:11px;height:11px;border-radius:3px;background:var(--accent);display:block}
.brand-mark span{display:none}
.nav-links{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:.95rem}
.nav-links a:hover{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang{padding:9px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:999px;border:1px solid var(--line);font-weight:700;transition:.2s ease}
.btn:hover{transform:translateY(-1px);border-color:#55776f}
.btn-primary{background:var(--accent);color:#0a140f;border-color:var(--accent)}
.btn-secondary{background:rgba(255,255,255,.03)}
.hero{padding:104px 0 68px;overflow:hidden}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--accent-2);font-size:.9rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:70px;align-items:center}
h1{font-size:clamp(2.7rem,6vw,5.7rem);line-height:1.02;letter-spacing:-.055em;margin:18px 0 24px;max-width:900px}
.lead{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--muted);max-width:720px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.hero-card{position:relative;border:1px solid var(--line);border-radius:32px;background:linear-gradient(155deg,rgba(216,255,116,.12),rgba(143,227,194,.03) 44%,rgba(255,255,255,.02));padding:28px;min-height:430px;box-shadow:0 30px 80px rgba(0,0,0,.25)}
.orbit{position:absolute;border:1px solid rgba(216,255,116,.18);border-radius:999px}
.orbit.one{inset:42px}
.orbit.two{inset:92px}
.system-core{position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:150px;height:150px;border-radius:34px;background:var(--accent);color:#08100c;display:grid;place-items:center;text-align:center;font-weight:900;line-height:1.2;box-shadow:0 20px 70px rgba(216,255,116,.16)}
.node{position:absolute;padding:10px 13px;border-radius:14px;background:#11231e;border:1px solid var(--line);color:var(--muted);font-size:.86rem}
.node.n1{top:34px;left:26px}.node.n2{top:45px;right:24px}.node.n3{bottom:44px;left:22px}.node.n4{bottom:28px;right:26px}
.trust-strip{border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.06)}
.trust div{background:var(--bg);padding:22px;text-align:center;color:var(--muted);font-size:.94rem}
section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:36px}
.section-head h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.1;letter-spacing:-.04em;margin:8px 0 0;max-width:720px}
.section-head p{max-width:460px;color:var(--muted);margin:0}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:245px}
.card .num{color:var(--accent);font-size:.85rem;font-weight:800}
.card h3{font-size:1.25rem;margin:26px 0 10px}
.card p{color:var(--muted);margin:0}
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sector{border:1px solid var(--line);border-radius:20px;padding:22px;background:rgba(255,255,255,.018)}
.sector strong{display:block;font-size:1.07rem;margin-bottom:5px}
.sector span{color:var(--muted);font-size:.94rem}
.demo-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.demo-main,.demo-side{border:1px solid var(--line);border-radius:28px;padding:30px;background:linear-gradient(145deg,#10231e,#0b1714)}
.demo-window{height:290px;border-radius:18px;border:1px solid #315148;background:linear-gradient(135deg,rgba(216,255,116,.12),rgba(143,227,194,.04));margin:26px 0;position:relative;overflow:hidden}
.demo-window:before{content:"";position:absolute;left:24px;right:24px;top:24px;height:14px;border-radius:7px;background:rgba(216,255,116,.55);box-shadow:0 36px 0 rgba(255,255,255,.08),0 72px 0 rgba(255,255,255,.06),0 108px 0 rgba(255,255,255,.05)}
.demo-side{display:flex;flex-direction:column;justify-content:space-between}
.demo-side ul{padding-left:18px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:26px;overflow:hidden}
.step{padding:26px;border-right:1px solid var(--line);background:rgba(255,255,255,.02)}
.step:last-child{border-right:0}
.step b{display:block;color:var(--accent);font-size:.85rem;margin-bottom:24px}
.step p{color:var(--muted);margin-bottom:0}
.pricing{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.price-card{border:1px solid var(--line);border-radius:28px;padding:30px;background:var(--card)}
.price-card.featured{border-color:#67806b;background:linear-gradient(145deg,rgba(216,255,116,.11),#10211d 55%)}
.price{font-size:2.9rem;font-weight:900;letter-spacing:-.05em;margin:18px 0 2px}
.price small{font-size:1rem;font-weight:600;color:var(--muted)}
.price-card ul{padding-left:18px;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}
.contact-copy{padding:12px 0}
.contact-copy h2{font-size:clamp(2.1rem,4vw,3.8rem);line-height:1.05;letter-spacing:-.045em;margin:12px 0 20px}
.contact-copy p{color:var(--muted)}
.form{border:1px solid var(--line);border-radius:28px;background:var(--card);padding:28px}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-size:.9rem;font-weight:700;margin-bottom:7px}
input,select,textarea{width:100%;background:#091713;border:1px solid #2a4941;border-radius:14px;color:var(--text);padding:13px 14px;font:inherit;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent-2)}
textarea{min-height:120px;resize:vertical}
.full{grid-column:1/-1}.hp{position:absolute;left:-9999px}
.notice{display:none;margin-bottom:16px;padding:12px 14px;border-radius:14px;background:rgba(216,255,116,.1);border:1px solid rgba(216,255,116,.3);color:#eaffad}
.notice.show{display:block}
footer{padding:36px 0 52px;border-top:1px solid rgba(255,255,255,.07);color:var(--muted)}
.footer-row{display:flex;justify-content:space-between;gap:20px;align-items:center}
.small{font-size:.88rem;color:var(--muted)}
@media(max-width:960px){
  .nav-links{display:none}.hero-grid,.demo-wrap,.contact-grid{grid-template-columns:1fr}.hero-card{min-height:360px}
  .cards{grid-template-columns:1fr 1fr}.sectors{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step{border-bottom:1px solid var(--line)}
  .trust{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .container{width:min(calc(100% - 28px),var(--max))}.hero{padding-top:72px}.nav{min-height:68px}.nav-actions .btn{display:none}
  .cards,.sectors,.steps,.pricing,.field-grid{grid-template-columns:1fr}.step{border-right:0}.section-head{display:block}.section-head p{margin-top:16px}
  .trust{grid-template-columns:1fr}.trust div{padding:15px}.hero-card{min-height:320px}.orbit.one{inset:35px}.orbit.two{inset:82px}
  .footer-row{display:block}.footer-row>*+*{margin-top:10px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}