:root{
  --obsidian:#07090E; --midnight:#0D1322; --cyan:#00F0FF; --purple:#7000FF; --violet:#9B4DFF;
  --text:#B9C3D6; --white:#F2F6FF; --glass:rgba(18,27,48,.55); --edge:rgba(0,240,255,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--obsidian);color:var(--text);font:16px/1.6 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 85% 0%,rgba(112,0,255,.18),transparent 60%),radial-gradient(800px 500px at 0% 35%,rgba(0,240,255,.08),transparent 60%),linear-gradient(var(--obsidian),var(--midnight) 50%,var(--obsidian))}
h1,h2,h3{font-family:Sora,Inter,sans-serif;color:var(--white);margin:0;letter-spacing:-.02em}
a{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* shared */
.glass{background:var(--glass);border:1px solid var(--edge);border-radius:20px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.ico{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(0,240,255,.14),rgba(112,0,255,.18));border:1px solid rgba(0,240,255,.25);box-shadow:0 0 24px rgba(0,240,255,.18)}
.ico svg{width:28px;height:28px;fill:none;stroke:url(#neon);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 6px rgba(0,240,255,.55))}
.ico-lg{width:64px;height:64px;border-radius:18px}
.ico-lg svg{width:36px;height:36px}
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;border:0;cursor:pointer;font:600 16px Inter,sans-serif;color:#03121A;text-decoration:none;padding:14px 24px;border-radius:12px;background:linear-gradient(90deg,var(--cyan),#5AA8FF 55%,var(--violet));box-shadow:0 0 28px rgba(0,240,255,.35);white-space:nowrap}
.btn:hover{box-shadow:0 0 40px rgba(0,240,255,.55)}
.btn:disabled{opacity:.6;cursor:wait}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-sm{padding:10px 18px;font-size:15px}
.btn-glass{background:rgba(255,255,255,.04);color:var(--white);border:1px solid rgba(0,240,255,.35);box-shadow:none}
.btn-glass:hover{background:rgba(0,240,255,.08);box-shadow:0 0 24px rgba(0,240,255,.2)}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(7,9,14,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,240,255,.1)}
.nav-in{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--white);text-decoration:none;font:700 17px Sora,sans-serif;white-space:nowrap}
.logo svg{width:30px;height:30px;filter:drop-shadow(0 0 8px rgba(0,240,255,.5))}
.nav nav{display:flex;gap:4px;margin-left:auto}
.nav nav a{display:flex;align-items:center;gap:8px;color:var(--text);text-decoration:none;font-size:15px;font-weight:500;padding:8px 12px;border-radius:10px}
.nav nav a:hover{color:var(--white);background:rgba(0,240,255,.07)}
.nav nav svg{width:18px;height:18px;fill:none;stroke:url(#neon);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* hero */
.hero{position:relative;min-height:calc(100vh - 68px);max-height:860px;display:flex;align-items:center;overflow:hidden}
.brain{position:absolute;top:0;bottom:0;left:47%;right:-3%;opacity:0;transition:opacity 1.2s}
.brain.ready{opacity:1}
.brain canvas{width:100%!important;height:100%!important;display:block}
.hero-in{position:relative;width:100%;padding-top:48px;padding-bottom:48px}
.hero-copy{max-width:540px}
.badge{display:inline-flex;align-items:center;gap:10px;padding:7px 14px;border-radius:999px;border:1px solid rgba(0,240,255,.35);background:rgba(0,240,255,.06);color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
.hero h1{font-size:clamp(34px,4.4vw,56px);line-height:1.08;margin-bottom:20px}
.hero h1 .brand{display:block;font-size:.46em;letter-spacing:.02em;margin-bottom:12px;background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;margin:0 0 28px;max-width:34em}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{display:flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;background:rgba(13,19,34,.7);border:1px solid rgba(0,240,255,.18);color:var(--white);font-size:14px;font-weight:500}
.chips svg{width:20px;height:20px;fill:none;stroke:url(#neon);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 5px rgba(0,240,255,.6))}

/* sections */
.sec{padding:72px 0}
.sec-head{margin-bottom:32px}
.sec-head h2{font-size:clamp(28px,3.2vw,40px);margin-bottom:8px}
.sec-head p{margin:0;font-size:18px}

.arch{display:grid;grid-template-columns:1fr 48px 1fr 48px 1fr;align-items:stretch}
.pillar{padding:28px}
.pillar h3{font-size:21px;margin:18px 0 12px}
.pillar ul,.card ul{margin:0;padding:0;list-style:none}
.pillar li,.card li{position:relative;padding-left:22px;margin-bottom:8px;font-size:15px}
.pillar li::before,.card li::before{content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 8px rgba(0,240,255,.7)}
.pillar-core{border-color:rgba(155,77,255,.45);box-shadow:0 0 50px -10px rgba(112,0,255,.45),inset 0 1px 0 rgba(255,255,255,.06)}
.link{display:flex;align-items:center;justify-content:center}
.link svg{width:30px;height:30px;fill:none;stroke:url(#neon);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 6px rgba(0,240,255,.7))}

.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(190px,auto);gap:16px}
.card{padding:26px;position:relative;overflow:hidden}
.card::after{content:"";position:absolute;inset:auto -30% -60% auto;width:240px;height:240px;border-radius:50%;background:radial-gradient(rgba(0,240,255,.12),transparent 70%);pointer-events:none}
.card h3{font-size:20px;margin:16px 0 8px}
.card p{margin:0 0 12px;font-size:15px}
.c-shield{grid-column:span 2;grid-row:span 2;border-color:rgba(0,240,255,.35)}
.c-shield h3{font-size:28px}
.c-shield p{font-size:17px}
.c-flow,.c-biz,.c-model{grid-column:span 2}

.founder{display:grid;grid-template-columns:320px 1fr;gap:44px;padding:40px;border-color:rgba(155,77,255,.4);box-shadow:0 0 70px -20px rgba(112,0,255,.5),inset 0 1px 0 rgba(255,255,255,.06)}
.portrait{margin:0;align-self:start}
.frame{border-radius:20px;padding:3px;background:linear-gradient(160deg,var(--cyan),var(--purple));box-shadow:0 0 30px rgba(0,240,255,.35),0 0 60px rgba(112,0,255,.3)}
.frame img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;height:auto;object-position:center 20%;transform:scale(1.04);border-radius:17px}
.frame{overflow:hidden}
.portrait figcaption{margin-top:16px}
.portrait b{display:block;color:var(--white);font:700 20px Sora,sans-serif}
.portrait span{font-size:14px;color:var(--cyan)}
.q-top{display:flex;justify-content:space-between;align-items:flex-start}
.q-mark{width:56px;height:56px;fill:url(#neon);filter:drop-shadow(0 0 12px rgba(0,240,255,.5))}
.lang{display:flex;border:1px solid rgba(0,240,255,.3);border-radius:10px;overflow:hidden}
.lang button{background:transparent;border:0;color:var(--text);font:600 13px Inter,sans-serif;padding:7px 12px;cursor:pointer}
.lang button[aria-pressed="true"]{background:rgba(0,240,255,.15);color:var(--white)}
blockquote{margin:12px 0 0;font-size:17px;line-height:1.7;color:#D6DEEE}
blockquote p{margin:0 0 14px}
blockquote strong{color:var(--white);font-weight:600}
.sig{font:600 18px Sora,sans-serif;color:var(--cyan);margin:8px 0 0}

.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.plan{padding:26px;position:relative}
.plan h3{font-size:20px;margin:16px 0 6px}
.price{font:800 34px Sora,sans-serif;color:var(--white)}
.price small{font:500 15px Inter,sans-serif;color:var(--text);margin:0 3px}
.plan p{margin:8px 0 0;font-size:15px}
.plan-hot{border-color:rgba(0,240,255,.5);box-shadow:0 0 50px -12px rgba(0,240,255,.5)}
.tag{position:absolute;top:18px;right:18px;font-size:12px;font-weight:600;color:#03121A;background:var(--cyan);padding:3px 10px;border-radius:999px}

.contact{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;padding:36px}
.c-copy h2{font-size:30px;margin:18px 0 8px}
.c-copy p{margin:0}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500;color:var(--white)}
.full{grid-column:1/-1}
input,textarea{font:16px Inter,sans-serif;color:var(--white);background:rgba(7,9,14,.6);border:1px solid rgba(0,240,255,.2);border-radius:12px;padding:12px 14px;resize:vertical}
input:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,240,255,.15)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.f-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.f-msg{margin:0;font-size:15px}
.f-msg.ok{color:#5BF2B0}
.f-msg.err{color:#FF8FA3}

.foot{border-top:1px solid rgba(0,240,255,.1);padding:28px 0;font-size:14px}
.foot-in{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot a{color:var(--text);margin-left:18px}

@media (max-width:1080px){
  .nav nav a{font-size:0;gap:0;padding:9px}
  .nav nav svg{width:21px;height:21px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .hero{min-height:0;max-height:none;flex-direction:column;align-items:stretch}
  .brain{position:relative;width:auto;height:360px;right:auto;order:2;margin:-20px 0 0}
  .hero-in{padding-bottom:0}
  .arch{grid-template-columns:1fr;gap:6px}
  .link{height:40px;transform:rotate(90deg)}
  .founder,.contact{grid-template-columns:1fr;padding:28px;gap:28px}
  .portrait{max-width:300px}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .nav-in{flex-wrap:wrap;height:auto;padding-top:10px;gap:10px}
  .btn-sm{margin-left:auto;padding:8px 12px;font-size:14px}
  .logo{font-size:15px}
  .logo svg{width:26px;height:26px}
  .nav nav{order:3;width:100%;margin:0 -16px;padding:2px 10px 8px;overflow-x:auto;scrollbar-width:none;justify-content:space-between}
  .nav nav a{font-size:12px;gap:4px;padding:7px 4px;white-space:nowrap}
  .nav nav svg{width:16px;height:16px}
  .bento,.plans,form{grid-template-columns:1fr}
  .c-shield,.c-flow,.c-biz,.c-model{grid-column:auto;grid-row:auto}
  .sec{padding:52px 0}
  .brain{height:300px}
  .foot a{margin:0 16px 0 0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.dot{animation:none}.brain{transition:none}}