:root{--bg:#07090f;--card:#0f1422;--o:#ff7a1a;--b:#3aa8ff;--t:#e8edf5;--m:#9aa6ba}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--t);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:var(--b)}
.wrap{max-width:1100px;margin:0 auto;padding:72px 20px}
h1{font-size:clamp(28px,5vw,52px);line-height:1.15;margin:.3em 0}
h2{font-size:clamp(26px,3.5vw,38px);margin:0 0 28px;background:linear-gradient(90deg,var(--o),var(--b));-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
h3{margin:.2em 0 .4em}
.o{color:var(--o)}.b{color:var(--b)}
.nav{position:sticky;top:0;z-index:9;display:flex;justify-content:space-between;align-items:center;padding:8px 20px;background:rgba(7,9,15,.85);backdrop-filter:blur(8px);border-bottom:1px solid #1b2236}
.nav-logo{height:40px}.nav nav{display:flex;gap:18px;align-items:center}.nav nav a{color:var(--t);text-decoration:none;font-size:14px}
@media(max-width:720px){.nav nav a:not(.btn){display:none}}
.hero{position:relative;overflow:hidden;text-align:center;min-height:min(88vh,760px);display:flex;align-items:center}
.hero .wrap{position:relative}
.hero-logo{width:min(420px,85%);filter:drop-shadow(0 0 30px rgba(255,122,26,.35))}
.glow{position:absolute;width:60vw;height:60vw;border-radius:50%;filter:blur(120px);opacity:.25}
.g1{background:var(--o);left:-20vw;top:-10vw}.g2{background:var(--b);right:-20vw;bottom:-20vw}
.tag{color:var(--o);letter-spacing:.2em;font-weight:700;font-size:13px}
.lead{color:var(--m);max-width:680px;margin:0 auto 28px;font-size:18px}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;background:linear-gradient(90deg,var(--o),#ff9b4a);color:#111;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-size:15px;box-shadow:0 0 20px rgba(255,122,26,.35)}
.btn.ghost{background:transparent;color:var(--b);border:1px solid var(--b);box-shadow:0 0 18px rgba(58,168,255,.25)}
.btn.sm{padding:7px 16px;font-size:13px}.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.card{background:var(--card);border:1px solid #1d2640;border-radius:16px;padding:22px;transition:border-color .3s}
.card:hover{border-color:var(--b)}.card p{color:var(--m);margin:0 0 .6em}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.n{font-weight:800;font-size:28px;color:var(--o)}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.demo{display:grid;grid-template-columns:1.6fr 1fr;gap:20px;align-items:start}
@media(max-width:820px){.demo{grid-template-columns:1fr}}
video{width:100%;border-radius:16px;border:1px solid #1d2640;background:#000;box-shadow:0 0 40px rgba(58,168,255,.15)}
audio{width:100%;margin:8px 0}.note{font-size:13px;color:var(--m)}
.road{list-style:none;padding:0;display:grid;gap:12px;border-left:2px solid var(--o);margin-left:8px}
.road li{padding:4px 0 4px 20px;position:relative;color:var(--m)}
.road li::before{content:"";position:absolute;left:-7px;top:12px;width:12px;height:12px;border-radius:50%;background:var(--b);box-shadow:0 0 10px var(--b)}
.road b{color:var(--t);display:block}
form input,form select,form textarea{width:100%;margin:0 0 10px;padding:11px;border-radius:10px;border:1px solid #26304d;background:#0a0e19;color:var(--t);font:inherit}
.big{font-size:20px;font-weight:700}
footer{text-align:center;padding:30px;color:var(--m);border-top:1px solid #1b2236;font-size:13px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}