:root{--night:#020711;--deep:#061426;--glass:rgba(9,25,44,.72);--cyan:#58dcff;--coral:#ff9a82;--ice:#eefaff;--mist:#9ab2c6;--stroke:rgba(137,214,255,.18);--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--night);color:var(--ice);font-family:"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
body:after{content:"";position:fixed;inset:0;z-index:-10;pointer-events:none;background:radial-gradient(circle at 20% 15%,rgba(46,163,213,.11),transparent 28%),radial-gradient(circle at 80% 70%,rgba(255,133,107,.06),transparent 25%)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.shell{width:min(var(--max),calc(100% - 44px));margin:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:15px;top:15px;z-index:1000;background:white;color:#001;padding:8px 12px}
.header{position:fixed;z-index:80;top:0;left:0;right:0}
.nav{height:84px;margin-top:14px;border:1px solid var(--stroke);border-radius:99px;background:rgba(2,7,17,.68);backdrop-filter:blur(18px);display:flex;align-items:center;padding:0 15px 0 24px;gap:30px}
.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:21px;letter-spacing:-.04em}
.brand i{width:28px;height:28px;position:relative;display:block}
.brand i:before,.brand i:after{content:"";position:absolute;border-radius:50%;inset:4px;border:2px solid var(--cyan);box-shadow:0 0 18px rgba(88,220,255,.7)}
.brand i:after{inset:10px;border:0;background:var(--coral);box-shadow:0 0 15px var(--coral)}
.navlinks{display:flex;gap:26px;margin-left:auto;font-size:14px;color:#b3c8d8}.navlinks a:hover{color:#fff}
.button{display:inline-flex;min-width:140px;justify-content:center;align-items:center;gap:8px;padding:12px 22px;border-radius:99px;background:var(--ice);color:#04101e;font-weight:800;border:1px solid var(--ice);white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb}
.button:hover{transform:translateY(-2px);box-shadow:0 10px 35px rgba(88,220,255,.2)}
.button.alt{color:var(--ice);background:rgba(6,20,38,.5);border-color:rgba(238,250,255,.28)}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;color:white;font-size:25px}
.hero{min-height:820px;position:relative;display:flex;align-items:center;isolation:isolate;padding-top:120px;overflow:hidden}
.hero-art{position:absolute;inset:0;z-index:-3}.hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,7,17,.97) 0%,rgba(2,7,17,.68) 42%,rgba(2,7,17,.1) 74%),linear-gradient(0deg,var(--night),transparent 36%)}
.hero-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center;margin:0;padding:0;transform:none;clip-path:none}
#flow-field{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.hero-copy{max-width:750px}
.kicker{display:inline-flex;align-items:center;gap:10px;text-transform:uppercase;font-size:11px;font-weight:800;letter-spacing:.22em;color:var(--cyan)}
.kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 13px var(--coral)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(55px,8vw,112px);line-height:.88;letter-spacing:-.075em;margin:28px 0 30px;font-weight:900}
h1 span{display:block;color:transparent;-webkit-text-stroke:1px rgba(238,250,255,.72)}
.hero p{max-width:620px;color:#b8cada;font-size:18px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0}
.platform-strip{display:flex;gap:9px;flex-wrap:wrap}.platform-strip span{font-size:10px;letter-spacing:.11em;border:1px solid var(--stroke);padding:7px 11px;border-radius:99px;color:#8ca9be;background:rgba(4,17,31,.55)}
.ticker{border-block:1px solid var(--stroke);background:#040c18;overflow:hidden}
.metrics{display:grid;grid-template-columns:repeat(5,1fr)}
.metric{padding:27px 22px;position:relative}.metric:not(:last-child):after{content:"";position:absolute;right:0;top:20%;height:60%;width:1px;background:var(--stroke)}
.metric b{font-size:26px;display:block;letter-spacing:-.04em}.metric small{color:#7692a9;font-size:11px}
.section{padding:125px 0}
.headrow{display:flex;justify-content:space-between;gap:60px;align-items:end;margin-bottom:55px}
.headrow h2{font-size:clamp(42px,6vw,75px);line-height:.95;letter-spacing:-.06em;margin:15px 0 0;max-width:760px}
.headrow>p{max-width:430px;color:var(--mist);margin:0}
.scene-track{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.scene{min-height:400px;border-left:1px solid var(--stroke);padding:10px 28px;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
.scene:before{content:"";position:absolute;left:-4px;top:0;width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}
.scene:nth-child(2):before{top:34%;background:var(--coral);box-shadow:0 0 18px var(--coral)}.scene:nth-child(3):before{top:67%}
.scene-code{font:11px Consolas,monospace;color:var(--cyan);letter-spacing:.12em}.scene h3{font-size:29px;margin:13px 0}.scene p{color:var(--mist)}
.route-stage{display:grid;grid-template-columns:1fr 1fr;min-height:640px;border:1px solid var(--stroke);border-radius:32px;overflow:hidden;background:var(--deep)}
.route-stage picture,.route-stage picture img{width:100%;height:100%;object-fit:cover}
.route-copy{padding:70px;display:flex;flex-direction:column;justify-content:center}.route-copy h2{font-size:clamp(42px,5vw,67px);line-height:1;letter-spacing:-.055em;margin:20px 0}.route-copy p{color:var(--mist)}
.pulse-list{display:grid;gap:10px;margin:25px 0}.pulse-list span{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--stroke);padding:12px 0;color:#c5d7e3}.pulse-list span:before{content:"";width:8px;height:8px;border:1px solid var(--coral);border-radius:50%;box-shadow:0 0 12px var(--coral)}
.feature-river{display:grid;grid-template-columns:1fr 1.1fr;gap:70px}
.feature-intro{position:sticky;top:130px;align-self:start}.feature-intro h2{font-size:clamp(45px,6vw,77px);line-height:.96;letter-spacing:-.06em;margin:18px 0}.feature-intro p{color:var(--mist)}
.flow-item{padding:36px 0;border-top:1px solid var(--stroke);display:grid;grid-template-columns:60px 1fr;gap:20px}.flow-item:last-child{border-bottom:1px solid var(--stroke)}
.flow-item .orb{width:45px;height:45px;border-radius:50%;border:1px solid var(--cyan);box-shadow:inset 0 0 18px rgba(88,220,255,.25);display:grid;place-items:center;font:11px Consolas;color:var(--cyan)}
.flow-item h3{font-size:26px;margin:0 0 9px}.flow-item p{color:var(--mist);margin:0}
.devices{padding:65px 0;border-block:1px solid var(--stroke);overflow:hidden}.device-line{display:flex;justify-content:space-between;gap:20px;align-items:center}.device-line strong{font-size:clamp(28px,4vw,52px);letter-spacing:-.05em}.device-names{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}.device-names span{padding:10px 16px;border-radius:99px;border:1px solid var(--stroke);color:#a8bfce}
.voices{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.voice-main,.voice-stack article{border:1px solid var(--stroke);border-radius:26px;background:linear-gradient(145deg,rgba(9,27,48,.78),rgba(3,11,23,.85))}
.voice-main{padding:50px;min-height:490px;display:flex;flex-direction:column;justify-content:space-between}.voice-main blockquote{font-size:clamp(28px,4vw,48px);line-height:1.2;letter-spacing:-.04em;margin:0}
.voice-meta b{display:block}.voice-meta span{color:var(--mist);font-size:13px}
.voice-stack{display:grid;gap:18px}.voice-stack article{padding:30px;display:flex;flex-direction:column;justify-content:space-between}.voice-stack p{font-size:18px}.voice-stack small{color:var(--mist)}
.plans{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.plan{grid-column:span 4;border:1px solid var(--stroke);border-radius:24px;padding:34px;background:rgba(6,20,38,.7)}.plan:nth-child(2){grid-column:span 5;background:linear-gradient(145deg,rgba(30,76,101,.74),rgba(7,22,39,.9));border-color:rgba(88,220,255,.55)}.plan:nth-child(3){grid-column:span 3}
.plan .label{font-size:12px;color:var(--cyan);letter-spacing:.14em}.plan h3{font-size:34px;margin:12px 0}.plan .price{font-size:18px;color:#d3e2eb}.plan p{color:var(--mist);min-height:95px}.plan ul{list-style:none;padding:0;margin:20px 0 28px}.plan li{padding:7px 0;color:#b7cad7}
.stories{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--stroke);border:1px solid var(--stroke)}.story{padding:34px;background:var(--night)}.story:hover{background:#071525}.story small{color:var(--coral);letter-spacing:.12em}.story h3{font-size:24px;margin:13px 0}.story p{color:var(--mist)}
.faq-layout{display:grid;grid-template-columns:.55fr 1fr;gap:80px}.faq-layout h2{font-size:clamp(45px,6vw,78px);letter-spacing:-.06em;line-height:.95;position:sticky;top:130px}
.questions details{border-top:1px solid var(--stroke);padding:23px 0}.questions details:last-child{border-bottom:1px solid var(--stroke)}.questions summary{cursor:pointer;list-style:none;font-weight:750;font-size:18px}.questions summary:after{content:"↗";float:right;color:var(--cyan)}.questions details[open] summary:after{content:"↓"}.questions p{color:var(--mist);padding-right:40px;margin:14px 0 0}
.final{margin:30px auto 110px;border-radius:40px;min-height:380px;padding:60px;display:flex;align-items:flex-end;justify-content:space-between;gap:40px;background:radial-gradient(circle at 74% 20%,rgba(88,220,255,.24),transparent 25%),linear-gradient(135deg,#09213b,#0e1729 60%,#2a1720);border:1px solid var(--stroke)}
.final h2{font-size:clamp(43px,6vw,80px);line-height:.94;letter-spacing:-.06em;margin:0}.final p{color:#adc2d0}
.footer{border-top:1px solid var(--stroke);padding:70px 0 30px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:35px}.footer h3{font-size:13px}.footer a:not(.brand){display:block;color:#7994a8;font-size:13px;margin:10px 0}.footer a:hover{color:var(--cyan)}.footnote{margin-top:50px;padding-top:22px;border-top:1px solid var(--stroke);color:#627d92;font-size:12px}
.subhero{padding:190px 0 90px;position:relative;border-bottom:1px solid var(--stroke)}.subhero h1{font-size:clamp(55px,8vw,105px);max-width:1000px}.subhero p{max-width:670px;color:var(--mist);font-size:18px}
.os-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.os-card{min-height:290px;border:1px solid var(--stroke);border-radius:24px;padding:30px;display:flex;flex-direction:column;background:var(--glass)}.os-card .osdot{width:13px;height:13px;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}.os-card:nth-child(even) .osdot{background:var(--coral);box-shadow:0 0 18px var(--coral)}.os-card h2{font-size:30px;margin:30px 0 8px}.os-card p{color:var(--mist);flex:1}.os-card .button{width:100%}
.alert{margin-top:24px;padding:22px;border:1px solid rgba(255,154,130,.4);border-radius:18px;background:rgba(81,26,24,.22);color:#d8c1bd}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.step{border-top:1px solid var(--stroke);padding-top:25px}.step:before{counter-increment:s;content:"0" counter(s);display:block;color:var(--cyan);font:12px Consolas;margin-bottom:25px}.step h3{font-size:22px}.step p{color:var(--mist)}
.help-grid{display:grid;grid-template-columns:340px 1fr;gap:70px}.help-menu{position:sticky;top:120px;align-self:start;padding:24px;border-radius:22px;border:1px solid var(--stroke);background:var(--glass)}.help-menu a{display:block;padding:9px 12px;color:#91aabe}.help-menu a:hover{color:white}
.help-content article{padding-bottom:45px;margin-bottom:45px;border-bottom:1px solid var(--stroke)}.help-content h2{font-size:clamp(30px,4vw,48px);letter-spacing:-.04em}.help-content p{color:#a7bac9}
@media(max-width:920px){.navlinks{display:none}.nav-toggle{display:block}.nav .button{display:none}.navlinks.open{display:flex;position:absolute;top:95px;left:22px;right:22px;background:#061426;border:1px solid var(--stroke);border-radius:20px;padding:25px;flex-direction:column}.hero{min-height:760px}.headrow{display:block}.headrow>p{margin-top:25px}.scene-track{grid-template-columns:1fr}.scene{min-height:260px}.route-stage{grid-template-columns:1fr}.route-stage picture{min-height:420px}.feature-river{grid-template-columns:1fr}.feature-intro{position:static}.voices{grid-template-columns:1fr}.plans{display:grid;grid-template-columns:1fr}.plan,.plan:nth-child(n){grid-column:auto}.faq-layout{grid-template-columns:1fr;gap:25px}.faq-layout h2{position:static}.os-list{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.help-grid{grid-template-columns:1fr}.help-menu{position:static}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:590px){.shell{width:min(var(--max),calc(100% - 26px))}.nav{height:68px;margin-top:9px}.hero{min-height:720px;padding-top:120px}.hero-actions .button{width:100%}.metrics{grid-template-columns:1fr 1fr}.metric:last-child{grid-column:span 2}.metric:nth-child(2):after,.metric:nth-child(4):after{display:none}.section{padding:85px 0}.route-copy{padding:32px}.route-stage picture{min-height:300px}.device-line{display:block}.device-names{justify-content:flex-start;margin-top:25px}.voice-main{padding:30px;min-height:390px}.stories{grid-template-columns:1fr}.final{padding:34px;display:block}.final .button{margin-top:25px;width:100%}.os-list{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* Hero image integrity override */
.hero{align-items:center}.hero-art{padding:0;margin:0;align-self:center;overflow:hidden;transform:none}.hero-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center;min-height:0;max-height:none;margin:0;padding:0;clip-path:none;transform:none}