:root{--blue:#0866ff;--blue-hover:#0055dc;--ink:#1c2b33;--muted:#60717d;--paper:#fff;--surface:#f3f6fa;--line:#dfe6ed;--blue-soft:#eaf2ff;--radius:20px;--radius-sm:12px;--shell:min(1320px,calc(100% - 80px));--header-h:88px;--section-space:88px;--gap:24px;--card-padding:32px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px);background:var(--paper)}body{color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.75}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{max-width:100%;display:block}h1,h2,h3,p,ul,ol{margin:0}h1,h2,h3{letter-spacing:-.035em;font-weight:500;line-height:1.35}h2{font-size:clamp(28px,3vw,40px)}h3{font-size:24px}p{overflow-wrap:break-word}.shell{width:var(--shell);margin-inline:auto}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.skip-link{z-index:200;border-radius:var(--radius-sm);background:#fff;padding:12px 20px;position:fixed;top:12px;left:20px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{z-index:100;color:#fff;border-bottom:1px solid #0000;transition:background .2s,color .2s;position:fixed;inset:0 0 auto}.site-header.is-scrolled,.site-header.is-open{color:var(--ink);border-color:var(--line);background:#fffffff7}.header-inner{min-height:var(--header-h);align-items:center;gap:32px;display:flex}.brand{flex-shrink:0;align-items:center;gap:12px;display:flex}.brand img{object-fit:contain;width:48px;height:48px}.brand>span{white-space:nowrap;flex-direction:column;gap:6px;display:flex}.brand b{letter-spacing:.08em;font-size:22px;font-weight:600;line-height:1.1}.brand small{letter-spacing:.12em;font-size:8px;line-height:1}.site-header nav{align-items:center;gap:28px;margin-left:auto;display:flex}.site-header nav a{white-space:nowrap;padding:30px 0;font-size:14px;position:relative}.site-header nav a[aria-current]:after{content:"";background:currentColor;border-radius:3px;height:3px;position:absolute;bottom:20px;left:0;right:0}.site-header.is-scrolled nav a:hover,.site-header.is-scrolled nav a[aria-current],.site-header.is-open nav a:hover,.site-header.is-open nav a[aria-current]{color:var(--blue)}.header-actions{align-items:center;gap:24px;display:flex}.locale{place-items:center;min-width:40px;min-height:44px;font-size:12px;display:grid}.menu-toggle{color:inherit;background:0 0;border:0;width:44px;height:44px;padding:11px;display:none}.menu-toggle span{background:currentColor;width:22px;height:2px;margin:5px 0;display:block}.site-header.is-open .menu-toggle span:first-child{transform:translateY(7px)rotate(45deg)}.site-header.is-open .menu-toggle span:nth-child(2){opacity:0}.site-header.is-open .menu-toggle span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.button{background:var(--blue);border:1px solid var(--blue);color:#fff;border-radius:999px;justify-content:center;align-items:center;gap:24px;min-height:48px;padding:12px 24px;font-size:14px;font-weight:500;transition:background .2s;display:inline-flex}.button:hover{background:var(--blue-hover);border-color:var(--blue-hover)}.button--white{color:var(--ink);background:#fff;border-color:#fff}.button--white:hover{background:var(--blue-soft);border-color:var(--blue-soft);color:var(--blue)}.text-link{color:var(--blue);align-items:center;gap:16px;padding:10px 0;font-size:14px;display:inline-flex}.text-link:hover{color:var(--blue-hover)}.eyebrow{color:var(--blue);margin-bottom:20px;font-size:14px}.small-index{letter-spacing:.06em;color:var(--blue);font-size:12px}.hero{isolation:isolate;background:var(--ink);color:#fff;height:100svh;min-height:560px;position:relative;overflow:hidden}.hero-image{object-fit:cover;object-position:center 45%;z-index:-2;width:100%;height:100%;position:absolute;inset:0}.hero:after{content:"";z-index:-1;background:linear-gradient(90deg,#0c1e308c,#0c1e300f 80%),linear-gradient(#0c1e304d,#0000 30%,#0c1e3066);position:absolute;inset:0}.hero-inner{height:100%;padding:calc(var(--header-h) + 64px) 0 56px}.hero-copy{flex-direction:column;justify-content:space-between;height:100%;display:flex}.hero h1{max-width:1000px;font-size:clamp(40px,4.8vw,78px);line-height:1.2}.hero-bottom{flex-wrap:wrap;align-items:center;gap:16px;max-width:620px;display:flex}.hero-bottom p{flex-basis:100%;max-width:500px;margin-bottom:12px;font-size:16px;line-height:1.85}.is-en .hero h1{max-width:960px;font-size:clamp(38px,4.5vw,68px)}.intro{padding-block:var(--section-space);grid-template-columns:1fr 1fr;align-items:center;gap:64px;display:grid}.intro p{color:var(--muted);font-size:18px}.section{padding-bottom:var(--section-space)}.section-heading{max-width:1040px;margin-bottom:40px}.section-heading>p:last-child:not(.eyebrow){max-width:720px;color:var(--muted);margin-top:24px;font-size:16px}.architecture-grid{gap:var(--gap);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.architecture-grid article{background:var(--surface);border-radius:var(--radius);padding:var(--card-padding)}.architecture-number{color:var(--blue);margin-bottom:40px;font-size:72px;font-weight:400;line-height:1.1;display:block}.architecture-grid h3{margin-bottom:16px}.architecture-grid p,.systems-list p,.roadmap-grid p{color:var(--muted);font-size:15px;line-height:1.85}.network{padding-bottom:var(--section-space);grid-template-columns:1fr 1fr;align-items:center;gap:64px;display:grid}.network>img{object-fit:cover;border-radius:var(--radius);filter:saturate(.85);width:100%;height:480px}.network-copy>p:not(.eyebrow){color:var(--muted);max-width:520px;margin:24px 0 16px;font-size:16px}.systems-list article{border-top:1px solid var(--line);grid-template-columns:56px 1fr 1.6fr;align-items:start;gap:32px;padding:32px 0;display:grid}.systems-list .small-index{padding-top:6px}.scene-grid{gap:var(--gap);grid-template-columns:repeat(5,minmax(0,1fr));padding:0;list-style:none;display:grid}.scene-grid li{background:var(--surface);border-radius:var(--radius);min-height:152px;padding:28px 24px}.scene-grid h3{margin-top:24px;font-size:20px}.roadmap-grid{gap:var(--gap);grid-template-columns:repeat(4,minmax(0,1fr));padding:0;list-style:none;display:grid}.roadmap-grid li{border-top:1px solid var(--line);padding-top:24px}.roadmap-grid h3{margin:24px 0 16px}.closing{background:var(--surface);border-radius:var(--radius);margin-bottom:var(--section-space);justify-content:space-between;align-items:center;gap:48px;padding:48px;display:flex}.closing h2{font-size:32px}.closing p{color:var(--muted);margin-top:24px;font-size:15px}.closing .button{flex-shrink:0}.site-footer{background:var(--surface);color:var(--muted)}.footer-nav{flex-wrap:wrap;gap:20px 32px;padding-top:40px;font-size:13px;display:flex}.footer-nav a:hover{color:var(--blue)}.footer-main{justify-content:space-between;align-items:center;gap:32px;padding:32px 0;display:flex}.footer-main .brand{color:var(--ink)}.footer-main .brand img{width:40px;height:40px}.footer-main .brand b{font-size:18px}.footer-legal{border-top:1px solid var(--line);justify-content:space-between;gap:24px;padding:24px 0;font-size:11px;display:flex}@media (width<=1180px){:root{--shell:calc(100% - 64px)}.header-inner{gap:24px}.site-header nav{gap:20px}.header-actions{gap:12px}.header-cta{padding-inline:20px}.brand b{font-size:20px}.brand img{width:44px;height:44px}.network{gap:40px}.scene-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=1000px){:root{--header-h:76px}.header-inner{gap:16px}.site-header nav{top:var(--header-h);height:calc(100dvh - var(--header-h));background:var(--paper);color:var(--ink);flex-direction:column;align-items:stretch;gap:0;padding:24px 32px 48px;display:none;position:fixed;inset-inline:0;overflow:auto}.site-header.is-open nav{display:flex}.site-header nav a{border-bottom:1px solid var(--line);padding:20px 0;font-size:18px}.site-header nav a[aria-current]:after{display:none}.header-actions{margin-left:auto}.menu-toggle{flex-shrink:0;display:block}.header-cta{display:none}.intro,.network{gap:32px}.architecture-grid{gap:16px}.architecture-grid article{padding:24px}.systems-list article{grid-template-columns:40px 1fr 1.4fr;gap:24px}.roadmap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=700px){:root{--shell:calc(100% - 36px);--section-space:56px;--gap:16px;--card-padding:24px}.header-inner,.brand{gap:8px}.brand img{width:38px;height:38px}.brand b{font-size:18px}.brand small{letter-spacing:.04em;font-size:7px}.header-actions{gap:0}.hero-inner{padding-top:calc(var(--header-h) + 40px);padding-bottom:32px}.hero h1,.is-en .hero h1{font-size:clamp(32px,7.8vw,46px);line-height:1.3}.hero-image{object-position:58% center}.hero-bottom p{max-width:320px;margin-bottom:8px;font-size:14px}.hero-bottom{gap:12px}.hero-bottom .button{gap:16px;padding:12px 20px}.intro{grid-template-columns:1fr;gap:24px}.intro p{font-size:16px}.section-heading{margin-bottom:32px}.eyebrow{margin-bottom:16px;font-size:13px}.section-heading>p:last-child:not(.eyebrow){margin-top:20px;font-size:15px}.architecture-grid{grid-template-columns:1fr}.architecture-grid article{grid-template-columns:64px 1fr;gap:12px 24px;display:grid}.architecture-number{grid-row:span 2;margin:0;font-size:56px}.architecture-grid h3{margin:0;font-size:22px}.architecture-grid p{grid-column:2}.network{grid-template-columns:1fr;gap:32px}.network>img{height:320px}.network-copy>p:not(.eyebrow){font-size:15px}.systems-list article{grid-template-columns:28px 1fr;gap:16px;padding:24px 0}.systems-list h3{font-size:22px}.systems-list p{grid-column:2}.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.scene-grid li{min-height:140px;padding:24px 20px}.scene-grid h3{overflow-wrap:break-word;font-size:18px}.roadmap-grid h3{font-size:22px}.closing{flex-direction:column;align-items:start;gap:24px;padding:32px 24px}.closing h2{font-size:28px}.closing p{margin-top:20px}.footer-nav{gap:16px 24px;padding-top:32px}.footer-main{flex-wrap:wrap;gap:24px}.footer-legal{flex-direction:column;gap:12px}}@media (width<=380px){.brand b{font-size:16px}.brand img{width:34px;height:34px}.brand small{font-size:6px}.hero h1,.is-en .hero h1{font-size:30px}.roadmap-grid{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}
