@font-face{font-family:Poppins;src:url('./assets/Poppins-Regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Poppins;src:url('./assets/Poppins-Bold.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:DDIN;src:url('./assets/D-DINExp.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:DDIN;src:url('./assets/D-DINExp-Bold.woff2') format('woff2');font-weight:700;font-display:swap}

:root{
  --blue:#1a3bdf;
  --blue-bright:#2d58ff;
  --ink:#080a10;
  --ink-2:#11141c;
  --paper:#ffffff;
  --mist:#f3f5f8;
  --line:#d9dde4;
  --muted:#6d7280;
  --max:1680px;
  --pad:clamp(24px,5vw,96px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:#222;font-family:Poppins,"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
button,a{font:inherit}
button{cursor:pointer}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
::selection{background:var(--blue);color:white}

.shell{width:min(var(--max),calc(100% - var(--pad)*2));margin:auto}
.eyebrow{font-family:DDIN,Poppins,sans-serif;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);font-weight:700}
.section-number{font-family:DDIN,sans-serif;color:#9aa0aa;font-size:12px;letter-spacing:.12em}
.arrow{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:currentColor;transition:transform .3s ease}
.arrow svg{width:13px;height:13px;}
a:hover .arrow,button:hover .arrow{transform:translateX(4px)}

.site-header{position:absolute;z-index:50;top:0;left:0;width:100%;height:86px;color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.header-inner{height:100%;display:flex;align-items:center;gap:48px}
.logo{width:152px;flex:none}
.logo img{width:100%;height:auto}
.main-nav{display:flex;gap:36px;margin-left:auto;font-size:14px}
.main-nav a{position:relative;color:#fff;padding:30px 0}
.main-nav a:after{content:"";position:absolute;left:0;bottom:24px;width:0;height:1px;background:white;transition:width .25s ease}
.main-nav a:hover:after,.main-nav a.active:after{width:100%}
.lang{font-family:DDIN,sans-serif;font-size:13px;letter-spacing:.1em;color:#cbd1dd}
.header-cta{display:flex;align-items:center;gap:12px;padding:12px 17px;background:var(--blue);color:#fff;font-size:13px;font-weight:700}
.menu-button{display:none;background:none;border:0;color:#fff!important;font-size:22px}

.hero{position:relative;min-height:900px;background:#02040a;overflow:hidden;color:white}
.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 77% 52%,rgba(26,59,223,.14),transparent 32%),linear-gradient(90deg,#03050a 0%,rgba(3,5,10,.88) 35%,rgba(3,5,10,.08) 75%);z-index:1}
.hero-product{position:absolute;z-index:0;inset:0;background:#02040a url('./assets/x20-main.webp') center right/auto 100% no-repeat;transform:scale(1.01);animation:heroIn 1.4s cubic-bezier(.2,.75,.2,1) both}
@keyframes heroIn{from{opacity:0;transform:scale(1.07)}to{opacity:1;transform:scale(1.01)}}
.hero-grid{position:relative;z-index:2;min-height:900px;display:grid;grid-template-columns:minmax(420px,720px) 1fr;align-items:center;padding-top:120px;padding-bottom:84px}
.breadcrumb{position:absolute;top:118px;left:0;font-size:12px;color:#8f97a9;letter-spacing:.06em}
.breadcrumb b{color:#fff;font-weight:400}
.hero-copy{padding-top:36px;max-width:690px}
.hero-kicker{display:flex;align-items:center;gap:16px;color:#9ba7c6;font-family:DDIN,sans-serif;letter-spacing:.12em;font-size:13px;text-transform:uppercase}
.hero-kicker:before{content:"";width:42px;height:2px;background:var(--blue-bright)}
h1{font-family:Poppins,"Microsoft YaHei",sans-serif;font-size:clamp(58px,5.3vw,96px);line-height:1.02;margin:27px 0 20px;font-weight:700}
h1 .model{font-family:DDIN,sans-serif;color:#5574ff;}
.hero-lead{max-width:580px;color:#bec5d2;font-size:17px;line-height:1.85;margin:0 0 38px}
.hero-stats{display:flex;margin:0 0 38px;padding:0;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}
.hero-stat{padding:21px 28px 18px 0;margin-right:28px;min-width:142px;border-right:1px solid rgba(255,255,255,.16)}
.hero-stat:last-child{border-right:0}
.hero-stat strong{display:block;font-family:DDIN,sans-serif;font-size:26px;line-height:1.15;color:#fff}
.hero-stat span{font-size:11px;color:#8f97a9;letter-spacing:.08em}
.hero-actions{display:flex;align-items:center;gap:26px}
.primary-button{display:inline-flex;align-items:center;justify-content:space-between;gap:26px;min-width:178px;padding:14px 16px 14px 20px;background:var(--blue);color:#fff!important;font-size:14px;font-weight:700;border:1px solid var(--blue)}
.primary-button:hover{background:var(--blue-bright);border-color:var(--blue-bright)}
.text-link{display:inline-flex;align-items:center;gap:10px;color:#fff!important;font-size:13px;border-bottom:1px solid #6a7180;padding-bottom:6px}
.scroll-cue{position:absolute;z-index:4;left:var(--pad);bottom:38px;display:flex;align-items:center;gap:14px;font-family:DDIN,sans-serif;font-size:10px;letter-spacing:.16em;color:#778095;transform:rotate(-90deg);transform-origin:left center}
.scroll-cue:before{content:"";width:42px;height:1px;background:#596172}
.hero-code{position:absolute;z-index:4;right:var(--pad);bottom:34px;font-family:DDIN,sans-serif;font-size:11px;letter-spacing:.11em;color:#707a8f}

.overview{padding:145px 0 132px;background:#fff}
.overview-head{display:grid;grid-template-columns:1fr 1.2fr;gap:7vw;align-items:end;margin-bottom:92px}
.display-title{font-family:Poppins,"Microsoft YaHei",sans-serif;font-size:clamp(44px,5vw,84px);line-height:1.05;margin:12px 0 0;color:#111;font-weight:700}
.overview-copy{font-size:18px;line-height:1.9;color:#606774;max-width:670px;margin:0 0 5px}
.measurement{display:grid;grid-template-columns:1.15fr .85fr;min-height:560px;background:var(--mist);overflow:hidden}
.measurement-visual{position:relative;display:grid;place-items:center;overflow:hidden;background:#090c14}
.measurement-visual:after{content:"";position:absolute;inset:8%;border:1px solid rgba(90,125,255,.25);pointer-events:none}
.measurement-visual img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.measurement:hover .measurement-visual img{transform:scale(1.035)}
.measure-line{position:absolute;z-index:2;color:#fff!important;font-family:DDIN,sans-serif;font-size:12px;letter-spacing:.12em;text-align:center}
.measure-line:before,.measure-line:after{content:"";position:absolute;background:#5e7bff}
.measure-x{left:18%;right:18%;bottom:10%}
.measure-x:before{left:0;right:0;height:1px;top:-7px}
.measure-x:after{display:none}
.measurement-copy{padding:72px 7vw;display:flex;flex-direction:column;justify-content:center}
.measurement-copy .big-number{font-family:DDIN,sans-serif;font-size:clamp(62px,6.5vw,105px);line-height:.95;color:#0f1117;font-weight:700;}
.measurement-copy .big-number sup{font-size:.32em;letter-spacing: normal;vertical-align:top;margin-left:8px;color:var(--blue)}
.measurement-copy h3{font-size:24px;color:#171a20;margin:26px 0 12px}
.measurement-copy p{font-size:15px;line-height:1.9;color:#727986;margin:0;max-width:460px}
.mini-data{display:grid;grid-template-columns:repeat(2,1fr);gap:0;margin-top:40px;border-top:1px solid var(--line)}
.mini-data div{padding:20px 16px 0 0}
.mini-data b{display:block;font-family:DDIN,sans-serif;font-size:22px;color:#151820}
.mini-data span{font-size:11px;color:#8b919b;letter-spacing:.06em}

.architecture{background:#020308;color:#fff!important;padding:142px 0 132px;position:relative;overflow:hidden}
.architecture:before{content:"";position:absolute;width:720px;height:720px;border-radius:50%;background:rgba(26,59,223,.18);filter:blur(110px);left:50%;top:48%;transform:translate(-50%,-50%)}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;position:relative;z-index:2;margin-bottom:55px}
.section-head h2{font-size:clamp(42px,4.4vw,76px);line-height:1.05;font-weight: bold;margin:12px 0 0;color:inherit}
.section-head p{max-width:460px;color:#929aa9;font-size:14px;line-height:1.8;margin:0}
.architecture-stage{position:relative;z-index:2;min-height:650px;display:grid;place-items:center}
.architecture-stage img{width:min(1100px,84%);filter:drop-shadow(0 30px 70px rgba(0,36,200,.25));transition:transform .25s ease-out}
.callout{position:absolute;width:240px;padding-top:14px;border-top:1px solid #3c465c}
.callout:before{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:#5071ff;top:-4px;left:0;box-shadow:0 0 16px #3f66ff}
.callout b{display:block;font-size:15px;margin-bottom:6px;color:#fff}
.callout span{display:block;color:#818a9b;font-size:12px;line-height:1.65}
.callout small{display:block;font-family:DDIN,sans-serif;color:#506fe8;font-size:10px;margin-bottom:9px;letter-spacing:.14em}
.callout.one{left:0;top:15%}.callout.two{right:0;top:13%}.callout.three{right:8%;bottom:10%}
.tech-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #1b2130;border-bottom:1px solid #1b2130;position:relative;z-index:2}
.tech-strip article{padding:34px 40px 34px 0;border-right:1px solid #1b2130;margin-right:40px}
.tech-strip article:last-child{border-right:0}
.tech-strip .num{font-family:DDIN,sans-serif;color:#4258bd;font-size:12px}
.tech-strip h3{font-size:18px;margin:10px 0 8px}
.tech-strip p{color:#788192;font-size:12px;line-height:1.65;margin:0}

.specs{padding:145px 0;background:#fff}
.spec-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:8vw;align-items:start}
.spec-product{position:sticky;top:110px}
.spec-product .image-box{background:#080b13;aspect-ratio:1/1;overflow:hidden;position:relative}
.spec-product .image-box img{width:100%;height:100%;object-fit:cover}
.gallery-controls{display:flex;margin-top:12px;gap:8px}
.gallery-controls button{border:1px solid #d8dce4;background:white;padding:10px 14px;color:#6f7682;font-size:12px;transition:.2s}
.gallery-controls button.active,.gallery-controls button:hover{background:var(--blue);border-color:var(--blue);color:white}
.spec-table{border-top:2px solid #151820}
.spec-row{display:grid;grid-template-columns:180px 1fr;gap:20px;align-items:center;min-height:70px;border-bottom:1px solid var(--line)}
.spec-row dt{font-size:13px;color:#858b96}
.spec-row dd{font-family:DDIN,Poppins,sans-serif;font-size:18px;color:#11151c;margin:0}
.spec-note{margin-top:26px;font-size:12px;line-height:1.8;color:#9297a1}
.download-row{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.outline-button{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;min-width:185px;border:1px solid #cdd2dc;padding:13px 16px;color:#1f232b;font-size:13px}
.outline-button svg{width:16px;fill:var(--blue)}

.applications{background:var(--mist);padding:142px 0 136px;overflow:hidden}
.app-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;margin-top:64px}
.app-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.app-card{position:relative;min-height:320px;overflow:hidden;background:#151820;color:white}
.app-card.main{min-height:670px}
.app-card img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:transform .65s ease,filter .65s ease}
.app-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(4,6,10,.82) 100%)}
.app-card:hover img{transform:scale(1.035);filter:grayscale(.15)}
.app-label{position:absolute;z-index:2;left:34px;right:34px;bottom:30px;display:flex;align-items:end;justify-content:space-between;gap:20px}
.app-label small{font-family:DDIN,sans-serif;font-size:10px;letter-spacing:.15em;color:#9ca5b6}
.app-label h3{font-size:24px;margin:5px 0 0}

.family{padding:145px 0 128px;background:white}
.family-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:60px}
.family-card{background:#f4f5f7;border:1px solid transparent;transition:.3s}
.family-card:hover{border-color:#c8cfdb;transform:translateY(-5px)}
.family-card .pic{aspect-ratio:1.25/1;background:#070a12;overflow:hidden}
.family-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.family-card:hover img{transform:scale(1.04)}
.family-card .info{padding:25px 27px 28px;display:flex;align-items:end;justify-content:space-between;gap:16px}
.family-card small{font-family:DDIN,sans-serif;color:#8b919c;font-size:10px;letter-spacing:.13em}
.family-card h3{font-size:19px;color:#161920;margin:7px 0 0}
.family-card.current{background:var(--blue);color:white}

.contact{position:relative;background:#080a10;color:#fff!important;padding:135px 0 126px;overflow:hidden}
.contact:after{content:"X20";position:absolute;right:-2vw;bottom:-18vw;font:700 min(34vw,560px)/1 DDIN,sans-serif;color:#0f1423;}
.contact-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:end}
.contact h2{font-size:clamp(48px,5vw,82px);line-height:1.08;margin:14px 0 0}
.contact h2 span{color:#5373ff}
.contact-side{display:flex;justify-content:flex-end;align-items:center;gap:26px;padding-bottom:8px}


.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.75,.2,1)}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1024px){
  .main-nav,.lang{display:none}.menu-button{display:block}.header-cta{margin-left:auto}
  .hero,.hero-grid{min-height:820px}.hero-grid{grid-template-columns:1fr}.hero-product{opacity:.68;background-position:67% center}.hero:before{background:linear-gradient(90deg,#03050a 0%,rgba(3,5,10,.87) 58%,rgba(3,5,10,.2) 100%)}
  .overview-head,.measurement,.spec-layout,.contact-inner{grid-template-columns:1fr}.overview-head{gap:34px}.measurement-copy{padding:60px 6vw}.spec-product{position:relative;top:0;max-width:620px}.contact-side{justify-content:flex-start}
  .callout{width:190px}.architecture-stage img{width:78%}.app-grid{grid-template-columns:1fr}.app-side{grid-template-columns:1fr 1fr;grid-template-rows:auto}.family-grid{grid-template-columns:repeat(3,1fr)}
}

@media(max-width:720px){
  :root{--pad:22px}.site-header{height:72px}.logo{width:122px}.header-cta{display:none}.header-inner{gap:16px}.menu-button{margin-left:auto}
  .hero,.hero-grid{min-height:790px}.hero-grid{display:flex;align-items:flex-end;padding-top:130px;padding-bottom:74px}.breadcrumb{top:96px}.hero-copy{padding-top:0}.hero-product{background-image:url('./assets/x20-alt.webp');background-size:auto 63%;background-position:84% 12%;opacity:.62}.hero:before{background:linear-gradient(0deg,#03050a 10%,rgba(3,5,10,.88) 48%,rgba(3,5,10,.05) 100%)}
  h1{font-size:50px;max-width:340px}.hero-lead{font-size:14px;line-height:1.75}.hero-stats{margin-bottom:30px}.hero-stat{min-width:0;flex:1;padding:16px 10px 14px 0;margin-right:10px}.hero-stat strong{font-size:20px}.hero-actions{gap:16px}.text-link{display:none}.scroll-cue,.hero-code{display:none}
  .overview,.specs,.family{padding:92px 0}.architecture,.applications{padding:96px 0}.overview-head{margin-bottom:54px}.overview-copy{font-size:15px}.measurement{min-height:0}.measurement-visual{aspect-ratio:1.15/1}.measurement-copy{padding:42px 28px}.mini-data{grid-template-columns:1fr 1fr}
  .section-head{align-items:start;flex-direction:column;margin-bottom:40px}.architecture-stage{min-height:540px;display:block;padding-top:120px}.architecture-stage img{width:100%}.callout{width:46%;}.callout.one{top:0}.callout.two{top:0}.callout.three{right:0;bottom:0}.tech-strip{grid-template-columns:1fr}.tech-strip article{border-right:0;border-bottom:1px solid #1b2130;margin:0;padding:25px 0}.tech-strip article:last-child{border-bottom:0}
  .spec-row{grid-template-columns:120px 1fr}.app-card.main{min-height:520px}.app-side{grid-template-columns:1fr}.app-card{min-height:350px}.family-grid{grid-template-columns:1fr}.contact{padding:94px 0}.contact-side{align-items:flex-start;flex-direction:column}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero-product,.reveal{animation:none;transition:none}.reveal{opacity:1;transform:none}}