:root{--ink:#06111f;--deep:#071a2d;--panel:#0b243b;--line:#173b55;--cyan:#38d9ff;--cyan2:#8cecff;--orange:#ff9f43;--fog:#dce9ef;--muted:#8ea8b8;--white:#f7fbfd;--max:1180px;--mono:"Cascadia Code","SFMono-Regular",Consolas,monospace;--sans:"Arial Narrow","Microsoft YaHei UI",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--fog);font-family:var(--sans);line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%}.skip{position:fixed;left:16px;top:-80px;z-index:99;background:var(--cyan);color:var(--ink);padding:10px 16px}.skip:focus{top:12px}:focus-visible{outline:2px solid var(--orange);outline-offset:4px}
.topbar{height:76px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(24px,calc((100vw - var(--max))/2));position:relative;z-index:10;background:rgba(6,17,31,.96)}.brand{display:inline-flex;align-items:center;gap:12px;width:max-content}.brand-glyph{width:35px;height:35px;border:1px solid var(--cyan);display:grid;place-items:center;color:var(--cyan);font-family:var(--mono);position:relative}.brand-glyph:after{content:"";position:absolute;width:5px;height:5px;background:var(--orange);right:-3px;top:-3px}.brand b{display:block;letter-spacing:.18em}.brand small{display:block;color:var(--muted);font:9px var(--mono);letter-spacing:.14em}.nav{display:flex;align-items:center;gap:28px;font-size:14px}.nav a{color:var(--muted)}.nav a:hover,.nav a[aria-current=page]{color:var(--white)}.nav a[aria-current=page]:after{content:"";display:block;height:1px;background:var(--cyan)}.top-action{justify-self:end;border-left:1px solid var(--line);padding-left:25px;font-size:14px}.top-action span{color:var(--orange)}.nav-toggle{display:none;background:none;color:var(--white);border:1px solid var(--line);padding:8px 12px}
.hero{max-width:var(--max);margin:auto;min-height:690px;display:grid;grid-template-columns:.9fr 1.35fr;align-items:center;gap:22px;padding:62px 0;position:relative}.hero:before{content:"TWIN // 00";position:absolute;left:-64px;top:190px;writing-mode:vertical-rl;font:10px var(--mono);letter-spacing:.2em;color:#496379}.eyebrow{font:11px var(--mono);letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}.eyebrow i{display:inline-block;width:7px;height:7px;border:1px solid var(--cyan);margin-right:8px;box-shadow:12px 0 var(--orange)}.hero h1{font-family:"Arial Black","Microsoft YaHei UI",sans-serif;font-size:clamp(55px,7vw,96px);line-height:.92;letter-spacing:-.07em;margin:24px 0 30px;color:var(--white)}.hero h1 span{color:transparent;-webkit-text-stroke:1px var(--cyan)}.lead{font-size:17px;color:#b6c8d2;max-width:600px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{min-width:152px;min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb;font-weight:700;font-size:14px;transition:.2s}.btn.primary{background:var(--cyan);color:var(--ink);border:1px solid var(--cyan)}.btn.primary:hover{background:var(--cyan2)}.btn.outline{border:1px solid #31516a;color:var(--white)}.btn.outline:hover{border-color:var(--cyan)}.btn.light{background:var(--white);color:var(--ink);border:1px solid var(--white)}.hero-readout{margin:38px 0 0;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.hero-readout div{padding:14px 8px 0;border-right:1px solid var(--line)}.hero-readout dt{font:9px var(--mono);color:var(--orange)}.hero-readout dd{margin:4px 0;font-size:12px;color:var(--muted)}.hero-media{margin:0;align-self:center;height:auto;position:relative;border:1px solid var(--line);background:#04101c}.hero-media:before,.hero-media:after{content:"";position:absolute;width:34px;height:34px;border-color:var(--cyan);z-index:2}.hero-media:before{left:-1px;top:-1px;border-left:2px solid;border-top:2px solid}.hero-media:after{right:-1px;bottom:-1px;border-right:2px solid;border-bottom:2px solid}.hero-media picture,.hero-media img{display:block;width:100%;height:auto;object-fit:contain;object-position:center}.hero-media figcaption{position:absolute;left:18px;right:18px;bottom:18px;background:rgba(4,16,28,.88);border-left:2px solid var(--orange);padding:10px 14px;display:flex;justify-content:space-between;gap:20px;font:10px var(--mono)}.hero-media figcaption span{color:var(--cyan)}.hero-media figcaption b{font-weight:400;color:var(--muted)}
.platform-bus{border-block:1px solid var(--line);display:grid;grid-template-columns:2fr repeat(6,1fr);max-width:1400px;margin:auto}.platform-bus>*{padding:20px 16px;border-right:1px solid var(--line);display:flex;align-items:center;justify-content:center}.platform-bus a{font:12px var(--mono);color:var(--muted)}.platform-bus a:hover{color:var(--cyan);background:#0a1f33}.bus-label{align-items:flex-start!important;flex-direction:column;background:var(--deep)}.bus-label small{color:var(--orange);font:9px var(--mono)}.bus-label strong{font-size:15px}
.evidence{max-width:var(--max);margin:120px auto;display:grid;grid-template-columns:1.2fr 1fr;border-top:1px solid var(--line)}.evidence header{grid-row:span 3;padding:40px 70px 40px 0}.evidence h2,.capabilities h2,.plans h2,.line-news h2,.device-twin h2,.faq h2,.final-cta h2{font-size:clamp(34px,4.2vw,58px);line-height:1.12;letter-spacing:-.04em;margin:18px 0;color:var(--white)}.evidence-line{border-bottom:1px solid var(--line);padding:26px 0 26px 30px}.evidence-line b{font-size:15px;color:var(--cyan)}.evidence-line p{margin:7px 0 0;color:var(--muted);font-size:14px}
.scenario-strip{display:grid;grid-template-columns:1.25fr repeat(3,1fr);border-block:1px solid var(--line);max-width:1400px;margin:auto}.scenario-strip>*{margin:0;padding:38px 30px;border-right:1px solid var(--line)}.scenario-title{background:var(--fog);color:var(--ink)}.scenario-title h2{line-height:1.15;font-size:29px}.scenario-title p:last-child{font-size:13px}.scenario-strip blockquote span{font:10px var(--mono);color:var(--orange)}.scenario-strip blockquote p{color:#c1d0d8;font-size:15px}.scenario-strip cite{font:10px var(--mono);color:var(--muted);font-style:normal}
.capabilities{max-width:var(--max);margin:140px auto;display:grid;grid-template-columns:.78fr 1.22fr;gap:90px;align-items:center}.cap-copy{position:sticky;top:110px;align-self:start}.cap-copy>p:not(.eyebrow){color:var(--muted)}.text-link{display:inline-block;margin-top:14px;color:var(--cyan);font-size:14px}.twin-stack{position:relative}.twin-stack:before{content:"";position:absolute;left:41px;top:55px;bottom:55px;border-left:1px dashed var(--cyan)}.twin-stack article{display:grid;grid-template-columns:84px 1fr 50px;align-items:center;min-height:145px;border-bottom:1px solid var(--line);position:relative}.twin-stack article:first-child{border-top:1px solid var(--line)}.twin-stack article:hover{background:linear-gradient(90deg,transparent,rgba(56,217,255,.06))}.node{width:84px;height:34px;background:var(--ink);position:relative;z-index:1;color:var(--cyan);font:10px var(--mono);display:grid;place-items:center;border:1px solid var(--line)}.twin-stack h3{margin:0;font-size:25px}.twin-stack p{color:var(--muted);font-size:14px;margin:6px 0}.twin-stack article>span{font:27px var(--mono);color:var(--orange);text-align:right}
.plans{max-width:1400px;margin:0 auto 130px;display:grid;grid-template-columns:1.2fr repeat(3,1fr);border-block:1px solid var(--line)}.plans>*{padding:42px 30px;border-right:1px solid var(--line)}.plans-head{background:#0a2035}.plans-head p:last-child{color:var(--muted)}.plans article small{font:10px var(--mono);color:var(--orange)}.plans article h3{font-size:38px;margin:16px 0}.plans article p,.plans article li{font-size:13px;color:var(--muted)}.plans article ul{padding-left:17px;margin:26px 0}.plans .btn{width:100%;margin-top:10px}.plan-focus{background:var(--fog);color:var(--ink)}.plan-focus h3{color:var(--ink)}.plan-focus p,.plan-focus li{color:#4a5d68!important}
.line-news{max-width:var(--max);margin:0 auto 130px;display:grid;grid-template-columns:1.2fr .8fr;gap:80px}.line-feature{padding:50px;border:1px solid var(--line);background:linear-gradient(130deg,#0b2942,#071624);position:relative}.line-feature:after{content:"LINE // ROUTE";position:absolute;right:20px;top:20px;color:#37536a;font:9px var(--mono);writing-mode:vertical-rl}.line-feature>p:not(.eyebrow){color:var(--muted)}.news-list{border-top:1px solid var(--line)}.news-list a{display:grid;grid-template-columns:1fr auto;gap:8px;padding:26px 0;border-bottom:1px solid var(--line)}.news-list small{grid-column:1;font:9px var(--mono);color:var(--orange)}.news-list b{font-size:15px}.news-list span{grid-column:2;grid-row:1/3;color:var(--cyan);align-self:center}
.device-twin{max-width:1400px;margin:0 auto 130px;display:grid;grid-template-columns:1.2fr .8fr;background:var(--fog);color:var(--ink);align-items:center}.device-twin figure{margin:0}.device-twin img{display:block;width:100%;height:auto}.device-twin>div{padding:50px}.device-twin h2{color:var(--ink)}.device-twin>div>p:not(.eyebrow){color:#536672}.device-tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.device-tags span{border:1px solid #aabec8;padding:7px 12px;font:11px var(--mono)}
.faq{max-width:var(--max);margin:0 auto 130px;display:grid;grid-template-columns:.68fr 1.32fr;gap:80px}.faq header{padding-top:15px}.faq header>p:not(.eyebrow){color:var(--muted)}details{border-top:1px solid var(--line)}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:23px 0;font-size:17px;display:flex;justify-content:space-between;gap:15px}summary::-webkit-details-marker{display:none}summary span{color:var(--cyan);font-family:var(--mono)}details p{margin:0 40px 24px 0;color:var(--muted);font-size:14px}.final-cta{max-width:1400px;margin:auto;padding:65px max(50px,calc((100% - var(--max))/2));background:var(--cyan);color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:40px}.final-cta .eyebrow{color:#1a6278}.final-cta h2{color:var(--ink);margin:10px 0}.final-cta p:last-child{margin:0}
.footer{max-width:1400px;margin:auto;padding:70px max(28px,calc((100% - var(--max))/2)) 28px;display:grid;grid-template-columns:2fr repeat(4,1fr);gap:45px;border-inline:1px solid var(--line)}.footer-brand p{color:var(--muted);max-width:290px;font-size:13px}.footer h3{font:10px var(--mono);color:var(--orange);letter-spacing:.14em}.footer>div:not(.footer-brand) a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.copyright{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px;color:#627e90;font:10px var(--mono)}
.subhero{max-width:var(--max);margin:auto;min-height:500px;padding:90px 0 70px;display:grid;grid-template-columns:1.4fr .6fr;align-items:end;gap:90px;border-bottom:1px solid var(--line)}.subhero h1{font-size:clamp(46px,6vw,78px);line-height:1;letter-spacing:-.055em;margin:20px 0;color:var(--white)}.subhero h1 span{color:var(--cyan)}.subhero>div>p:last-child{color:var(--muted);max-width:720px}.sub-readout{border:1px solid var(--line);padding:25px;display:grid;gap:12px;font:11px var(--mono)}.sub-readout b{color:var(--orange);border-bottom:1px solid var(--line);padding-bottom:12px}.sub-readout span{color:var(--muted)}.download-matrix{max-width:var(--max);margin:100px auto;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.download-matrix article{min-height:320px;padding:30px;display:flex;flex-direction:column;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.download-matrix article:nth-child(2),.download-matrix article:nth-child(5){background:#0a2035}.download-matrix small{font:9px var(--mono);color:var(--orange)}.download-matrix h2{font-size:40px;margin:25px 0 5px}.download-matrix p{color:var(--muted);font-size:14px}.download-matrix .btn{margin-top:auto;width:100%}.install-flow{max-width:var(--max);margin:0 auto 110px;display:grid;grid-template-columns:.65fr 1.35fr;gap:70px}.install-flow h2,.download-note h2,.help-layout h1{font-size:clamp(38px,4.5vw,60px);line-height:1.08;margin:16px 0}.install-flow ol{margin:0;padding:0;list-style:none;counter-reset:steps}.install-flow li{counter-increment:steps;display:grid;grid-template-columns:150px 1fr;border-top:1px solid var(--line);padding:24px 0}.install-flow li:before{content:"CHECK / 0"counter(steps);font:10px var(--mono);color:var(--cyan)}.install-flow li b{grid-column:2}.install-flow li p{grid-column:2;color:var(--muted);margin:5px 0}.download-note{max-width:var(--max);margin:0 auto 100px;background:var(--fog);color:var(--ink);padding:50px;display:flex;align-items:center;justify-content:space-between;gap:40px}.download-note h2{color:var(--ink);margin:8px 0}.download-note p:last-child{color:#506570}
.help-layout{max-width:var(--max);margin:auto;display:grid;grid-template-columns:250px 1fr;gap:80px;padding:90px 0 120px}.help-rail{position:sticky;top:105px;height:max-content;border-top:1px solid var(--line)}.help-rail .eyebrow{padding:20px 0 10px}.help-rail a{display:block;padding:10px 0;border-bottom:1px solid #102c43;color:var(--muted);font-size:13px}.help-rail a:hover{color:var(--cyan);padding-left:5px}.help-head{min-height:360px;border-bottom:1px solid var(--line)}.help-head h1{font-size:clamp(48px,6vw,76px);color:var(--white);letter-spacing:-.05em}.help-head>p:last-child{color:var(--muted);max-width:680px}.help-content>article{padding:55px 0;border-bottom:1px solid var(--line)}.help-content>article h2,.help-end h2{font-size:30px;margin:8px 0 18px;color:var(--white)}.help-content>article p,.help-content>article li{color:var(--muted);font-size:15px}.help-content>article ol{padding-left:22px}.help-code{font:10px var(--mono);color:var(--orange)}.help-end{margin-top:70px;padding:35px;background:#0a2035;border-left:2px solid var(--cyan);display:flex;align-items:center;justify-content:space-between;gap:30px}.help-end h2{margin:5px 0}
@media(max-width:900px){.topbar{grid-template-columns:1fr auto}.top-action{display:none}.nav-toggle{display:block}.nav{display:none;position:absolute;left:0;right:0;top:75px;background:var(--deep);padding:20px;flex-direction:column}.nav.open{display:flex}.hero{grid-template-columns:1fr;padding:50px 24px}.hero h1{font-size:60px}.platform-bus{grid-template-columns:repeat(3,1fr)}.platform-bus .bus-label{grid-column:1/-1}.evidence,.capabilities,.line-news,.faq{grid-template-columns:1fr;margin-inline:24px;gap:35px}.evidence header{grid-row:auto;padding:0 0 20px}.scenario-strip,.plans{grid-template-columns:1fr 1fr}.scenario-title,.plans-head{grid-column:1/-1}.device-twin{grid-template-columns:1fr}.footer{grid-template-columns:2fr 1fr 1fr}.footer-brand{grid-column:1/-1}.subhero{grid-template-columns:1fr;padding:70px 24px;margin:0;gap:30px}.download-matrix{grid-template-columns:1fr 1fr;margin-inline:24px}.install-flow{grid-template-columns:1fr;margin-inline:24px}.download-note{margin-inline:24px}.help-layout{grid-template-columns:1fr;padding:60px 24px}.help-rail{position:static;display:flex;flex-wrap:wrap;gap:0 20px}.help-rail .eyebrow{width:100%}.help-rail a{width:calc(33% - 14px)}}
@media(max-width:560px){.hero h1{font-size:48px}.hero-readout{grid-template-columns:1fr}.hero-readout div{border-right:0}.platform-bus,.scenario-strip,.plans{grid-template-columns:1fr}.platform-bus .bus-label,.scenario-title,.plans-head{grid-column:auto}.capabilities{margin-block:90px}.cap-copy{position:static}.twin-stack article{grid-template-columns:70px 1fr}.twin-stack article>span{display:none}.line-feature,.device-twin>div{padding:30px 22px}.faq{margin-block:80px}.final-cta{padding:45px 24px;display:block}.final-cta .btn{margin-top:25px}.footer{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.download-matrix{grid-template-columns:1fr}.download-note{display:block;padding:30px 22px}.download-note .btn{margin-top:18px}.install-flow li{grid-template-columns:100px 1fr}.help-rail a{width:calc(50% - 10px)}.help-end{display:block}.help-end .btn{margin-top:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Mandatory final hero image normalization */
.hero{align-items:center}
.hero-media{align-self:center;height:auto;padding:0;margin:0;overflow:visible;transform:none}
.hero-media picture{display:block;padding:0;margin:0}
.hero-media img{display:block;width:100%;height:auto;object-fit:contain;object-position:center;min-height:0;max-height:none;margin:0;padding:0;clip-path:none;transform:none}