:root{
  --bg:#02110d;
  --bg2:#04190f;
  --text:#e6f3ec;
  --muted:#7e9b8d;
  --mint:#4dffb8;
  --emerald:#00e0a0;
  --line:rgba(77,255,184,.12);
  --card:rgba(8,30,22,.55);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
#neural{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block}
body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(1100px 700px at 70% -10%,rgba(0,224,160,.10),transparent 60%),
             radial-gradient(900px 600px at 10% 110%,rgba(77,255,184,.06),transparent 60%);}
header,main,footer{position:relative;z-index:2}
a{color:inherit;text-decoration:none}
.muted{color:var(--muted)}
.grad{background:linear-gradient(110deg,var(--mint),var(--emerald));-webkit-background-clip:text;background-clip:text;color:transparent}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:linear-gradient(180deg,rgba(2,17,13,.85),rgba(2,17,13,.35));
  border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:32px;
  padding:18px 28px}
.brand{font-weight:800;letter-spacing:.22em;font-size:18px;
  background:linear-gradient(110deg,var(--mint),var(--emerald));-webkit-background-clip:text;background-clip:text;color:transparent}
.links{display:flex;gap:30px;margin-left:auto;font-size:14.5px}
.links a{color:var(--muted);transition:color .25s}
.links a:hover{color:var(--text)}
.btn{display:inline-block;font-size:14.5px;font-weight:600;padding:11px 22px;border-radius:10px;transition:.25s;cursor:pointer}
.btn-solid{color:#02110d;background:linear-gradient(110deg,var(--mint),var(--emerald));
  box-shadow:0 0 0 0 rgba(0,224,160,.5)}
.btn-solid:hover{box-shadow:0 0 26px rgba(0,224,160,.45);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--emerald);box-shadow:0 0 22px rgba(0,224,160,.18)}

/* hero */
.hero{max-width:var(--maxw);margin:0 auto;padding:130px 28px 100px}
.hero-content{max-width:760px}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.28em;color:var(--emerald);
  font-weight:600;margin-bottom:22px}
h1{font-size:clamp(40px,6.4vw,76px);line-height:1.05;letter-spacing:-.02em;font-weight:800}
.lead{font-size:clamp(16px,2vw,20px);color:#bcd6c8;margin:26px 0 36px;max-width:620px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}

/* marquee */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;padding:20px 0;background:rgba(4,25,16,.4)}
.marquee-track{display:flex;gap:64px;white-space:nowrap;width:max-content;
  animation:scroll 26s linear infinite;font-size:17px;color:var(--muted);letter-spacing:.06em}
.marquee-track span{opacity:.7}
@keyframes scroll{to{transform:translateX(-50%)}}

/* sections */
section{position:relative}
.section-head{max-width:var(--maxw);margin:0 auto;padding:0 28px 50px;text-align:center}
.section-head h2,.cta h2,.pipeline h2{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.02em;margin-top:14px}
.section-head .muted{margin-top:14px}
.features,.pipeline{max-width:var(--maxw);margin:0 auto;padding:100px 28px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;
  transition:.35s;backdrop-filter:blur(6px)}
.card:hover{transform:translateY(-6px);border-color:rgba(0,224,160,.4);
  box-shadow:0 20px 60px -20px rgba(0,224,160,.35)}
.card-glyph{font-size:14px;font-weight:700;letter-spacing:.1em;color:var(--emerald);
  width:42px;height:42px;display:grid;place-items:center;border-radius:11px;
  border:1px solid var(--line);margin-bottom:20px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted)}

/* pipeline */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{position:relative;padding:26px 22px;border-radius:14px;
  border:1px solid var(--line);background:rgba(4,25,16,.4)}
.step-no{display:block;font-size:18px;font-weight:800;color:var(--mint);margin-bottom:10px;letter-spacing:.1em}
.step p{font-size:14px;color:var(--muted)}

/* stats */
.stats{max-width:var(--maxw);margin:0 auto;padding:80px 28px;display:grid;
  grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.num{font-size:clamp(34px,4.5vw,56px);font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(110deg,var(--mint),var(--emerald));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat p{color:var(--muted);font-size:14px;margin-top:6px}

/* cta */
.cta{max-width:var(--maxw);margin:0 auto;padding:110px 28px;text-align:center}
.cta-box{border:1px solid var(--line);border-radius:24px;padding:64px 32px;
  background:radial-gradient(700px 300px at 50% 0%,rgba(0,224,160,.12),transparent 70%),var(--card)}
.cta-box .muted{margin:16px auto 30px;max-width:520px}

/* footer */
.footer{border-top:1px solid var(--line);padding:64px 28px 36px;background:rgba(3,20,13,.6)}
.foot-inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;
  gap:48px;flex-wrap:wrap}
.foot-brand{max-width:280px}
.foot-brand .muted{margin-top:12px;font-size:14px}
.foot-cols{display:flex;gap:64px;flex-wrap:wrap}
.foot-cols h4{font-size:13px;letter-spacing:.1em;margin-bottom:14px;color:var(--text)}
.foot-cols a{display:block;color:var(--muted);font-size:14px;margin-bottom:9px;transition:color .2s}
.foot-cols a:hover{color:var(--emerald)}
.copy{max-width:var(--maxw);margin:48px auto 0;font-size:13px;text-align:center}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
.grid .reveal:nth-child(2),.steps .reveal:nth-child(2),.stats .reveal:nth-child(2){transition-delay:.08s}
.grid .reveal:nth-child(3),.steps .reveal:nth-child(3),.stats .reveal:nth-child(3){transition-delay:.16s}
.grid .reveal:nth-child(4),.steps .reveal:nth-child(4),.stats .reveal:nth-child(4){transition-delay:.24s}

@media(max-width:900px){
  .grid,.steps,.stats{grid-template-columns:repeat(2,1fr)}
  .links{display:none}
}
@media(max-width:560px){
  .grid,.steps,.stats{grid-template-columns:1fr}
  .hero{padding-top:90px}
}