:root{
  --bg:#F7F8FC; --surface:#FFFFFF; --ink:#0B1640; --ink-2:#3A4570; --muted:#6B7497; --line:#E3E7F2;
  --violet:#7C3AED; --blue:#2F5BEA; --cyan:#22C7F0; --navy:#0A1030; --green:#16A34A;
  --grad:linear-gradient(100deg,#7C3AED 0%,#2F5BEA 52%,#22C7F0 100%);
  --radius:18px; --max:1160px;
  --display:'Sora',system-ui,sans-serif; --body:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.02em;margin:0}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--grad);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:12px;font-weight:700;font-size:16px;border:1px solid transparent;transition:transform .15s,box-shadow .15s;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(47,91,234,.28)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-sm{padding:10px 16px;font-size:15px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(247,248,252,.86);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid transparent}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand img{width:34px;height:34px}
.brand .int{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--ink-2);font-weight:600;font-size:15px}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-links a.btn-primary,.nav-links a.btn-primary:hover{color:#fff}

/* hero */
.hero{padding:72px 0 88px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-200px -200px auto auto;width:720px;height:720px;background:radial-gradient(closest-side,rgba(34,199,240,.18),transparent 70%),radial-gradient(closest-side at 30% 70%,rgba(124,58,237,.14),transparent 70%);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero h1{font-size:clamp(36px,5vw,58px);margin:18px 0 20px}
.hero .lead{font-size:19px;color:var(--ink-2);max-width:560px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.badge-row{display:flex;align-items:center;gap:10px;margin-top:28px;font-size:14px;color:var(--muted)}
.badge-row b{color:var(--ink);font-weight:700}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(22,163,74,.15);flex-shrink:0}

/* chat mock */
.chat{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:0 30px 70px rgba(11,22,64,.12);overflow:hidden}
.chat-head{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
.chat-head span{width:10px;height:10px;border-radius:50%;background:#E3E7F2}
.chat-head em{font-style:normal;margin-left:auto;font-size:12px;font-weight:700;color:var(--blue);background:#EEF2FF;padding:4px 10px;border-radius:999px}
.chat-body{padding:20px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:88%;padding:12px 16px;border-radius:16px;font-size:15px;line-height:1.5}
.msg.user{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:6px}
.msg.ai{align-self:flex-start;background:#F2F4FA;border-bottom-left-radius:6px}
.tool{align-self:flex-start;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.tool::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.mini-cart{margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px}
.mini-cart div{display:flex;justify-content:space-between;gap:12px;padding:3px 0}
.mini-cart .old{color:var(--muted);text-decoration:line-through}
.mini-cart .save{color:var(--green);font-weight:700}
.mini-cart .tot{border-top:1px solid var(--line);margin-top:6px;padding-top:8px;font-weight:800}
.handoff{display:inline-flex;margin-top:10px;background:var(--grad);color:#fff;font-weight:700;font-size:14px;padding:9px 14px;border-radius:10px}

/* sections */
section{padding:96px 0}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);margin:14px 0 14px}
.sec-head p{color:var(--ink-2);font-size:18px}
.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.alt .card{background:var(--bg)}
.card h3{font-size:20px;margin:16px 0 10px}
.card p{color:var(--ink-2);font-size:16px}
.ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:#EEF2FF;color:var(--blue)}
.ico svg{width:22px;height:22px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.stat{border-radius:var(--radius);padding:28px;background:var(--navy);color:#fff;position:relative;overflow:hidden}
.stat::after{content:"";position:absolute;inset:auto -40px -60px auto;width:180px;height:180px;background:radial-gradient(closest-side,rgba(34,199,240,.25),transparent);pointer-events:none}
.stat b{display:block;font-family:var(--display);font-size:44px;line-height:1;letter-spacing:-.03em;background:linear-gradient(100deg,#A78BFA,#22C7F0);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat p{margin-top:12px;color:#C9D1EC;font-size:15.5px}
.stat small{display:block;margin-top:14px;color:#8A94BC;font-size:12.5px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding:32px 28px 28px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line)}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--display);font-weight:700;font-size:15px;color:#fff;background:var(--grad);width:40px;height:40px;border-radius:12px;display:grid;place-items:center}
.step h3{font-size:21px;margin:18px 0 10px}
.step p{color:var(--ink-2);font-size:16px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{font-size:13px;font-weight:600;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.flow-note{margin-top:22px;padding:16px 20px;border-radius:14px;background:#EEF7F1;color:#14532D;font-size:15.5px;display:flex;gap:10px;align-items:flex-start}

/* demo */
.demo{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.timeline{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.timeline li{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.timeline li:last-child{border-bottom:0}
.timeline .n{width:32px;height:32px;border-radius:50%;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;font-weight:700;font-size:14px;color:var(--blue)}
.timeline b{display:block;font-size:16.5px}
.timeline span{color:var(--ink-2);font-size:15.5px}
.price-card{background:var(--navy);color:#fff;border-radius:22px;padding:32px;position:relative;overflow:hidden}
.price-card::before{content:"";position:absolute;inset:-80px -80px auto auto;width:260px;height:260px;background:radial-gradient(closest-side,rgba(124,58,237,.35),transparent)}
.price-card .row{display:flex;justify-content:space-between;align-items:baseline;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);position:relative}
.price-card .row span{color:#C9D1EC}
.price-card .row b{font-family:var(--display);font-size:22px}
.price-card .big{font-size:40px!important;background:linear-gradient(100deg,#A78BFA,#22C7F0);-webkit-background-clip:text;background-clip:text;color:transparent}
.try{margin-top:24px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px;position:relative}
.try p{color:#C9D1EC;font-size:15px}
.try code{display:block;margin-top:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:15px;background:rgba(0,0,0,.3);padding:10px 12px;border-radius:8px;color:#fff;overflow-wrap:anywhere}
.try a{color:#7DD8F5;font-weight:700}
.try-steps{margin:10px 0 0;padding-left:22px;color:#C9D1EC;font-size:15px}
.try-steps li{margin:6px 0}
.try-steps b{color:#fff}
.copy-row{display:flex;gap:8px;align-items:stretch;margin-top:8px}
.copy-row code{margin:0;flex:1;min-width:0;font-size:14px;overflow-wrap:anywhere}
.copy-btn{flex-shrink:0;font:inherit;font-size:13px;font-weight:700;color:var(--ink);background:#fff;border:0;border-radius:8px;padding:0 12px;cursor:pointer}
.copy-btn.ok{background:#4ADE80}
.doc .copy-row code{background:#0A1030;color:#fff;padding:10px 12px;border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.doc .copy-btn{background:var(--ink);color:#fff}
.doc .copy-btn.ok{background:var(--green)}
.shot{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:14px 0}
.shot ol{margin:0}
.path{display:inline-block;font-weight:700;color:var(--ink);background:#F0F3FA;border:1px solid var(--line);padding:1px 8px;border-radius:6px;font-size:15px}

/* channels */
.logos-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.logo-chip{font-family:var(--display);font-weight:600;font-size:17px;padding:12px 20px;border-radius:14px;background:var(--surface);border:1px solid var(--line);color:var(--ink)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.two-col .card h3{margin-top:0}
.muted{color:var(--muted)}
.small{font-size:14px}

/* cta */
.cta{background:var(--navy);color:#fff;border-radius:28px;padding:64px;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:-160px auto auto -120px;width:480px;height:480px;background:radial-gradient(closest-side,rgba(124,58,237,.35),transparent)}
.cta::after{content:"";position:absolute;inset:auto -120px -200px auto;width:520px;height:520px;background:radial-gradient(closest-side,rgba(34,199,240,.25),transparent)}
.cta>*{position:relative;z-index:1}
.cta h2{font-size:clamp(28px,3.4vw,40px)}
.cta p{color:#C9D1EC;margin-top:14px;font-size:17.5px}
.cta ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.cta li{display:flex;gap:10px;color:#E3E8F8;font-size:16px}
.cta li::before{content:"✓";color:var(--cyan);font-weight:800}
.cta .btn-primary{margin-top:28px}

/* footer */
footer{padding:56px 0 40px;border-top:1px solid var(--line);background:var(--surface)}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.foot h4{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.foot ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.foot a{color:var(--ink-2);font-weight:600}
.foot p{color:var(--ink-2);font-size:15px;margin-top:14px;max-width:360px}
.copy{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* doc pages */
.doc{max-width:820px;margin:0 auto;padding:56px 24px 96px}
.doc h1{font-size:clamp(32px,4vw,44px);margin:14px 0 12px}
.doc .meta{color:var(--muted);font-size:15px}
.doc h2{font-size:24px;margin:44px 0 14px}
.doc h3{font-size:18px;margin:28px 0 10px}
.doc p,.doc li{color:var(--ink-2)}
.doc p+p{margin-top:12px}
.doc ul,.doc ol{padding-left:22px;margin:12px 0}
.doc li{margin:6px 0}
.doc table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15.5px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.doc th,.doc td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.doc th{background:#F0F3FA;font-weight:700;color:var(--ink)}
.doc tr:last-child td{border-bottom:0}
.doc .table-wrap{overflow-x:auto}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:28px 0}
.toc b{display:block;margin-bottom:8px}
.toc a{display:inline-block;margin:4px 14px 4px 0;font-weight:600;font-size:15px}
.note{background:#EEF2FF;border:1px solid #D9E1FF;border-radius:14px;padding:16px 18px;margin:20px 0;color:var(--ink-2);font-size:15.5px}
.lang-sep{margin:72px 0 0;padding-top:40px;border-top:2px solid var(--line)}
details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:4px 20px;margin:10px 0}
details summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--blue);font-size:20px;line-height:1}
details[open] summary::after{content:"–"}
details p,details ol,details ul{padding-bottom:14px}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#0A1030;color:#fff;padding:2px 8px;border-radius:6px;font-size:14.5px;overflow-wrap:anywhere}

/* responsive */
@media (max-width:980px){
  .hero .wrap,.demo,.cta{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.steps,.stats{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
  .foot>div:first-child{grid-column:1/-1}
}
@media (max-width:760px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .nav-links a:not(.btn){display:none}
  section{padding:64px 0}
  .hero{padding:40px 0 56px}
  .hero .lead{font-size:17px}
  .grid-4,.two-col{grid-template-columns:1fr}
  .cta{padding:36px 22px;border-radius:22px}
  .card,.step{padding:22px}
  .price-card{padding:24px}
  .doc{padding:36px 16px 64px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* demo video */
.video-box{margin:0 0 48px}
.video-box video{display:block;width:100%;aspect-ratio:16/9;background:#0A1030;border-radius:22px;box-shadow:0 30px 70px rgba(11,22,64,.18);border:1px solid var(--line)}
.video-box figcaption{margin-top:12px;font-size:14px;color:var(--muted);text-align:center}
@media (max-width:760px){.video-box{margin-bottom:32px}.video-box video{border-radius:14px}}