:root{color-scheme:dark;--bg:#071018;--bg-deep:#050b11;--panel:#0b1720;--panel-light:#101f2a;--line:#a3bcc926;--line-strong:#a3bcc945;--text:#f5f8f9;--muted:#a5b5bd;--subtle:#6e828d;--mint:#77e7b5;--mint-strong:#4fd99d;--mint-soft:#77e7b517;--mint-line:#77e7b557;--blue:#a6cff4;--danger:#f09b92;--max:1770px;--header:84px;--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", "Noto Sans Arabic", "Noto Sans Devanagari", "Microsoft YaHei", sans-serif;--mono:"SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;--radius-sm:5px;--radius-md:9px;--radius-lg:14px}*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth;scroll-padding-top:var(--header)}body{background:var(--bg);min-width:320px;color:var(--text);font:400 24px/1.65 var(--sans);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;overflow-x:hidden}a{color:inherit;text-decoration:none}button{color:inherit;font:inherit;border:0}code,pre{font-family:var(--mono)}img,svg{display:block}:focus-visible{outline:2px solid var(--mint);outline-offset:6px}::selection{background:var(--mint);color:#06130e}.shell{width:min(var(--max), calc(100% - 96px));margin-inline:auto}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.skip-link{top:21px;z-index:100;border-radius:var(--radius-sm);background:var(--mint);color:#06130e;padding:12px 18px;font-size:20px;font-weight:700;position:fixed;inset-inline-start:21px;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}.site-header{z-index:50;height:var(--header);border-bottom:1px solid var(--line);backdrop-filter:blur(20px)saturate(130%);background:#071018d1;position:fixed;inset:0 0 auto}.header-inner{grid-template-columns:1fr auto 1fr;align-items:center;height:100%;display:grid}.brand-lockup{align-items:center;gap:15px;width:max-content;display:flex}.brand-mark{object-fit:contain;width:39px;height:39px;display:block}.brand-name{letter-spacing:-.025em;font-size:24px;font-weight:720}.brand-product{border:1px solid var(--mint-line);border-radius:var(--radius-sm);background:var(--mint-soft);color:var(--mint);font:680 15px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;margin-inline-start:3px;padding:8px 12px;box-shadow:inset 0 0 33px #77e7b50d}.main-nav{align-items:center;gap:45px;height:100%;display:flex}.main-nav a{height:100%;color:var(--muted);align-items:center;font-size:18px;transition:color .18s;display:inline-flex;position:relative}.main-nav a:after{content:"";background:var(--mint);transform-origin:50%;height:2px;transition:transform .22s;position:absolute;bottom:-1px;left:0;right:0;transform:scaleX(0)}.main-nav a:hover,.main-nav a.active{color:var(--text)}.main-nav a.active:after{transform:scaleX(1)}.main-nav .nav-tunnel{color:var(--text);gap:11px;font-weight:660}.main-nav .nav-tunnel:after{display:none}.main-nav .nav-tunnel i{background:var(--mint);width:8px;height:8px;box-shadow:0 0 0 6px var(--mint-soft);border-radius:50%}.main-nav .nav-tunnel svg{width:18px;height:18px;color:var(--mint);transition:transform .18s}.main-nav .nav-tunnel:hover svg{transform:translate(3px,-3px)}.header-actions{justify-self:end;align-items:center;gap:27px;display:flex}.language-switch{color:var(--subtle);align-items:center;display:inline-flex;position:relative}.language-switch select{appearance:none;border:1px solid var(--line);border-radius:var(--radius-sm);width:189px;height:51px;color:var(--muted);font:600 17px/1 var(--sans);text-overflow:ellipsis;white-space:nowrap;cursor:pointer;background:#ffffff05;outline:0;padding:0 41px 0 42px;transition:border-color .18s,background .18s,color .18s;overflow:hidden}.language-switch select:hover{border-color:var(--line-strong);color:var(--text);background:#ffffff0a}.language-switch select:focus-visible{border-color:var(--mint);outline:2px solid var(--mint);outline-offset:2px}.language-switch option{background:var(--panel);color:var(--text)}.language-icon,.language-chevron{z-index:1;color:var(--subtle);pointer-events:none;position:absolute}.language-icon{width:21px;height:21px;inset-inline-start:14px}.language-chevron{width:15px;height:15px;inset-inline-end:14px}.site-footer{border-top:1px solid var(--line);background:#050b10b8;position:absolute;bottom:0;left:0;right:0}.footer-inner{grid-template-columns:1fr auto 1fr;align-items:center;gap:36px;min-height:81px;display:grid}.footer-brand{align-items:center;gap:12px;display:flex}.footer-brand .brand-mark{width:26px;height:26px}.footer-brand strong{color:var(--muted);font-size:15px}.footer-slogan,.footer-top{color:var(--subtle);font:550 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}.footer-top{justify-self:end;transition:color .18s}.footer-top:hover{color:var(--text)}@media (width<=1260px){:root{--header:78px}.shell{width:min(var(--max), calc(100% - 60px))}.header-inner{grid-template-columns:1fr auto 1fr}.main-nav{justify-self:center;gap:0}.main-nav a:not(.nav-tunnel){display:none}}@media (width<=930px){.shell{width:min(var(--max), calc(100% - 45px))}.brand-product{padding-inline:9px}.header-actions{gap:18px}.language-switch select{width:156px}.footer-inner{grid-template-columns:1fr auto}.footer-slogan{display:none}}@media (width<=690px){.shell{width:min(var(--max), calc(100% - 36px))}.brand-lockup{gap:12px}.brand-product{display:none}.language-switch select{color:#0000;width:54px;padding:0}.language-icon{inset-inline-start:17px}.language-chevron{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}body{scrollbar-color:var(--line-strong) var(--bg-deep)}body:before{z-index:-2;content:"";background:radial-gradient(1350px 975px at 78% 4%, #2c65842b, transparent 68%), radial-gradient(1140px 840px at -8% 72%, #28896a14, transparent 70%), linear-gradient(180deg, #09141d 0%, var(--bg) 48%, var(--bg-deep) 100%);position:fixed;inset:0}body:after{z-index:-1;content:"";pointer-events:none;opacity:.11;background-image:linear-gradient(#a7c3d11f 1px,#0000 1px),linear-gradient(90deg,#a7c3d11f 1px,#0000 1px);background-size:120px 120px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000,#000 17% 83%,#0000);mask-image:linear-gradient(90deg,#0000,#000 17% 83%,#0000)}::-webkit-scrollbar{width:17px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{border:5px solid var(--bg-deep);background:var(--line-strong);border-radius:12px}.page-rail{top:50%;z-index:20;flex-direction:column;gap:18px;display:flex;position:fixed;inset-inline-end:36px;transform:translateY(-50%)}.page-rail a{place-items:center;width:36px;height:36px;display:grid}.page-rail a:before{content:"";background:#49606c;border-radius:50%;width:9px;height:9px;transition:transform .18s,background .18s,box-shadow .18s}.page-rail a:hover:before{background:var(--muted);transform:scale(1.35)}.page-rail a.active:before{background:var(--mint);box-shadow:0 0 0 8px var(--mint-soft);transform:scale(1.35)}.panel{scroll-margin-top:var(--header);position:relative}.panel+.panel:before{top:0;right:max(48px, calc((100vw - var(--max)) / 2));left:max(48px, calc((100vw - var(--max)) / 2));content:"";background:linear-gradient(90deg, transparent, var(--line-strong) 15%, var(--line-strong) 85%, transparent);height:1px;position:absolute}.panel-inner{width:min(1560px,100% - 96px);margin-inline:auto;padding:clamp(93px,8vh,126px) 0}.hero{align-items:center;min-height:100svh;display:flex}.hero .panel-inner{padding-block:calc(var(--header) + 42px) 66px}.hero-layout{grid-template-columns:minmax(0,1.05fr) minmax(510px,.95fr);align-items:center;gap:clamp(60px,5vw,96px);display:grid}.hero-statement{min-width:0}h1{letter-spacing:-.04em;text-wrap:balance;max-width:930px;margin:0;font-size:clamp(69px,5vw,96px);font-weight:650;line-height:.98}.lead{color:#bbc8ce;max-width:68ch;margin:36px 0 0;font-size:clamp(24px,1.3vw,29px);line-height:1.75}.hero-actions{align-items:center;margin-top:36px;display:flex}.primary-action{border:1px solid var(--mint-line);border-radius:var(--radius-sm);min-height:66px;color:var(--text);background:linear-gradient(#77e7b514,#77e7b508);align-items:center;gap:18px;padding:0 26px;font-size:18px;font-weight:680;transition:border-color .18s,background .18s,color .18s;display:inline-flex;box-shadow:0 18px 45px #0000001a,inset 0 0 33px #77e7b508}.primary-action span,.primary-action svg{color:var(--mint)}.primary-action svg{width:20px;height:20px;transition:transform .18s}.primary-action:hover{color:#eef7f3;background:#77e7b51c;border-color:#77e7b585}.primary-action:hover svg{transform:translate(3px,-3px)}.system-map{border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:#08121ae0;min-width:0;position:relative;overflow:hidden}.map-header,.map-caption{min-height:60px;color:var(--subtle);font:620 14px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:0 27px;display:flex}.map-header{border-bottom:1px solid var(--line)}.map-header span:first-child{color:var(--text)}.map-caption{border-top:1px solid var(--line);justify-content:flex-start;line-height:1.45}.map-spine{top:90px;bottom:90px;background:var(--line-strong);width:1px;position:absolute;inset-inline-start:62px}.map-spine i{top:58%;background:var(--mint);width:8px;height:8px;box-shadow:0 0 0 8px var(--mint-soft);border-radius:50%;position:absolute;inset-inline-start:-3px}.system-map ol{margin:0;padding:12px 0;list-style:none}.system-map li{min-height:72px;color:var(--subtle);grid-template-columns:69px 1fr auto;align-items:center;gap:18px;padding:9px 27px;display:grid;position:relative}.system-map li+li{border-top:1px solid #a3bcc914}.system-map li.live{background:linear-gradient(90deg, var(--mint-soft), transparent 75%);color:var(--text)}.map-index{z-index:1;font:620 14px/1 var(--mono);font-variant-numeric:tabular-nums}.system-map li>div{align-items:baseline;gap:15px;min-width:0;display:flex}.system-map strong{color:inherit;font-size:21px;font-weight:660}.system-map small{color:var(--subtle);font:590 12px/1 var(--mono);letter-spacing:.06em;text-overflow:ellipsis;overflow:hidden}.map-status{font:610 12px/1 var(--mono);white-space:nowrap;align-items:center;gap:11px;display:inline-flex}.map-status i{background:#526773;border-radius:50%;width:8px;height:8px}.system-map li.live .map-status{color:var(--mint)}.system-map li.live .map-status i{background:var(--mint);box-shadow:0 0 0 6px var(--mint-soft)}.scroll-cue{color:var(--subtle);font:600 14px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:15px;display:flex;position:absolute;bottom:33px;left:50%;transform:translate(-50%)}.scroll-cue i{background:var(--line-strong);width:1px;height:33px;position:relative;overflow:hidden}.scroll-cue i:after{content:"";background:var(--mint);height:100%;animation:2.1s cubic-bezier(.16,1,.3,1) infinite scroll-line;position:absolute;inset:-100% 0 auto}.tunnel-showcase{align-items:center;min-height:100svh;display:flex}.tunnel-showcase .panel-inner{padding-block:clamp(87px,8vh,114px)}.tunnel-heading{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:21px 63px;margin-bottom:48px;display:grid}.live-marker{color:var(--mint);font:650 14px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;grid-column:1/-1;align-items:center;gap:14px;display:inline-flex}.live-marker i{background:var(--mint);width:9px;height:9px;box-shadow:0 0 0 8px var(--mint-soft);border-radius:50%}h2{letter-spacing:-.04em;text-wrap:balance;max-width:1260px;margin:0;font-size:clamp(51px,3.5vw,72px);font-weight:650;line-height:1}.tunnel-heading>p{color:#d6e0e4;text-align:end;max-width:34ch;margin:0 0 11px;font-size:24px;font-weight:610}.tunnel-stage{border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:#08121ad6;grid-template-columns:minmax(360px,.62fr) minmax(0,1.38fr);display:grid;overflow:hidden;box-shadow:0 45px 120px #00000038}.tunnel-description{border-inline-end:1px solid var(--line-strong);flex-direction:column;align-items:flex-start;min-height:450px;padding:clamp(36px,3vw,51px);display:flex}.tunnel-description>p{max-width:42ch;color:var(--muted);margin:0;font-size:23px;line-height:1.8}.tunnel-description>code{color:var(--blue);letter-spacing:.05em;margin-top:36px;font-size:14px;line-height:1.65}.tunnel-description .primary-action{margin-top:auto}.tunnel-route{background:linear-gradient(90deg,#0000 49.9%,#a3bcc914 50%,#0000 50.1%),linear-gradient(#0000 40%,#77e7b508);grid-template-columns:minmax(174px,auto) minmax(135px,1fr) minmax(240px,auto);align-items:center;gap:33px;min-width:0;padding:clamp(36px,3vw,51px);display:grid}.route-endpoint{min-width:0}.route-endpoint>span{color:var(--subtle);font:620 12px/1 var(--mono);letter-spacing:.12em;margin-bottom:18px;display:block}.route-endpoint strong{overflow-wrap:anywhere;letter-spacing:-.025em;font-size:clamp(27px,2vw,41px);font-weight:650;display:block}.route-endpoint code{color:var(--blue);margin-top:11px;font-size:15px;display:block}.public-endpoint{text-align:end}.route-channel{grid-template-columns:1fr 9px 9px 9px 1fr;align-items:center;gap:12px;min-width:108px;display:grid}.route-channel span{background:var(--line-strong);height:1px}.route-channel i{background:var(--mint);width:9px;height:9px;box-shadow:0 0 0 8px var(--mint-soft);border-radius:50%;animation:2.6s cubic-bezier(.16,1,.3,1) infinite tunnel-flow}.route-channel i:nth-of-type(2){animation-delay:.24s}.route-channel i:nth-of-type(3){animation-delay:.48s}.roadmap .panel-inner{padding-block:clamp(108px,9vw,168px)}.section-heading{margin-bottom:54px;display:block}.section-heading h2{max-width:none;font-size:clamp(51px,3.5vw,72px)}.section-heading>p{max-width:65ch;color:var(--muted);margin:27px 0 0;font-size:21px;line-height:1.7}.roadmap-list{border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong)}.roadmap-item{grid-template-columns:180px minmax(330px,.82fr) minmax(390px,1.18fr) minmax(270px,.72fr);align-items:stretch;min-height:192px;display:grid}.roadmap-item+.roadmap-item{border-top:1px solid var(--line)}.roadmap-item>*{min-width:0;padding:30px 27px}.roadmap-item>*+*{border-inline-start:1px solid var(--line)}.roadmap-code{color:var(--subtle);font:620 14px/1 var(--mono);letter-spacing:.06em;flex-direction:column;justify-content:space-between;display:flex}.roadmap-code small{color:#536974;font:inherit}.roadmap-name{flex-direction:column;justify-content:center;display:flex}.roadmap-name h3{letter-spacing:-.035em;margin:0;font-size:36px;font-weight:650;line-height:1}.roadmap-name p{color:#d6e0e4;margin:18px 0 0;font-size:20px;font-weight:610}.roadmap-description{color:var(--muted);align-items:center;margin:0;font-size:18px;line-height:1.7;display:flex}.roadmap-state{flex-direction:column;justify-content:space-between;align-items:flex-start;display:flex}.roadmap-state code{color:var(--subtle);letter-spacing:.04em;font-size:12px;line-height:1.55}.status-chip{color:var(--subtle);font:620 12px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:11px;display:inline-flex}.status-chip i{background:#526773;border-radius:50%;width:8px;height:8px}.principles{align-items:center;min-height:100svh;padding-bottom:81px;display:flex}.principles .panel-inner{padding-block:93px 135px}.principle-grid{border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);grid-template-columns:repeat(2,1fr);display:grid}.principle-grid article{grid-template-columns:96px 1fr;align-content:center;gap:15px 30px;min-height:240px;padding:33px;display:grid}.principle-grid article:nth-child(2n){border-inline-start:1px solid var(--line-strong)}.principle-grid article:nth-child(n+3){border-top:1px solid var(--line-strong)}.principle-grid article>span{color:var(--subtle);font:600 14px/1 var(--mono);letter-spacing:.08em;grid-row:1/span 2}.principle-grid h3{letter-spacing:-.025em;margin:0;font-size:32px;font-weight:650}.principle-grid p{max-width:46ch;color:var(--muted);margin:0;font-size:20px;line-height:1.7}@keyframes scroll-line{0%{transform:translateY(0)}65%,to{transform:translateY(200%)}}@keyframes tunnel-flow{0%,22%{opacity:.22;transform:scale(.7)}52%{opacity:1;transform:scale(1)}80%,to{opacity:.22;transform:scale(.7)}}@media (width<=1680px){.page-rail{inset-inline-end:12px}.hero-layout{gap:81px}.roadmap-item{grid-template-columns:156px minmax(300px,.85fr) minmax(345px,1.15fr) minmax(233px,.7fr)}}@media (width<=1380px){.page-rail{display:none}.panel-inner{width:min(1560px,100% - 60px);padding-block:108px}.hero{min-height:auto}.hero .panel-inner{padding-top:calc(var(--header) + 66px);padding-bottom:96px}.hero-layout{grid-template-columns:1fr;gap:66px}.hero-statement{max-width:1140px}.system-map{width:min(100%,1020px)}.scroll-cue{display:none}.tunnel-showcase{min-height:auto}.tunnel-stage{grid-template-columns:1fr}.tunnel-description{border-inline-end:0;border-bottom:1px solid var(--line-strong);min-height:360px}.tunnel-route{min-height:360px}.section-heading>p{max-width:1080px}.roadmap-item{grid-template-columns:156px minmax(0,1fr) 255px;grid-template-areas:"code name state""code description state"}.roadmap-code{grid-area:code}.roadmap-name{grid-area:name;padding-bottom:15px}.roadmap-description{border-top:1px solid var(--line);border-inline-start:1px solid var(--line);grid-area:description;padding-top:15px}.roadmap-state{grid-area:state}}html[lang=zh-CN] h1,html[lang=zh-TW] h1,html[lang=zh-CN] .section-heading h2,html[lang=zh-TW] .section-heading h2{white-space:nowrap;word-break:keep-all;max-width:none}html[lang=zh-CN] h1,html[lang=zh-TW] h1{font-size:clamp(60px,5vw,96px)}html[lang=zh-CN] .section-heading h2,html[lang=zh-TW] .section-heading h2{font-size:clamp(45px,3.5vw,69px)}@media (width<=1020px){.panel+.panel:before{left:23px;right:23px}.panel-inner{width:min(1560px,100% - 45px);padding-block:96px}.hero .panel-inner{padding-top:calc(var(--header) + 57px);padding-bottom:87px}h1{font-size:clamp(54px,9.5vw,72px)}h2,.section-heading h2{font-size:clamp(48px,8vw,63px)}html[lang=zh-CN] h1,html[lang=zh-TW] h1{font-size:clamp(42px,7.5vw,54px)}html[lang=zh-CN] .section-heading h2,html[lang=zh-TW] .section-heading h2{font-size:clamp(36px,6.5vw,48px)}.lead{margin-top:33px}.hero-actions{flex-direction:column;align-items:stretch;gap:15px}.primary-action{justify-content:space-between}.system-map li{grid-template-columns:60px minmax(0,1fr) auto;padding-inline:21px}.map-spine{inset-inline-start:51px}.system-map li>div{flex-direction:column;align-items:flex-start;gap:8px}.tunnel-heading{grid-template-columns:1fr;gap:24px}.tunnel-heading>p{text-align:start;margin:0}.tunnel-route{grid-template-columns:1fr;gap:30px;min-height:420px}.route-channel{grid-template-rows:1fr 9px 9px 9px 1fr;grid-template-columns:1fr;width:1px;min-width:0;height:129px;margin-inline-start:8px}.route-channel span{width:1px;height:100%}.public-endpoint{text-align:start}.roadmap-item{grid-template-columns:1fr;grid-template-areas:"code""name""description""state";display:grid}.roadmap-item>*{padding:27px}.roadmap-item>*+*{border-inline-start:0}.roadmap-code{border-bottom:1px solid var(--line);flex-direction:row;align-items:center;min-height:75px}.roadmap-name{border-bottom:1px solid var(--line)}.roadmap-description{border-top:0;border-inline-start:0}.roadmap-state{border-top:1px solid var(--line);flex-direction:row;align-items:center;gap:33px;min-height:120px}.roadmap-state code{text-align:end;max-width:64%}.principles{min-height:auto}.principle-grid{grid-template-columns:1fr}.principle-grid article{grid-template-columns:90px 1fr;min-height:225px;padding:30px 27px}.principle-grid article:nth-child(2n){border-inline-start:0}.principle-grid article+article{border-top:1px solid var(--line-strong)}}@media (width<=630px){.map-status{text-align:end;white-space:normal;justify-content:flex-end;max-width:141px;line-height:1.35}.tunnel-description{min-height:450px;padding:36px 30px}.tunnel-route{padding:42px 30px}.principle-grid article{grid-template-columns:1fr}.principle-grid article>span{grid-row:auto}}@media (width>=1381px) and (height<=1200px){.hero .panel-inner{padding-top:calc(var(--header) + 27px);padding-bottom:42px}.tunnel-showcase .panel-inner{padding-block:72px}.tunnel-heading,.section-heading{margin-bottom:42px}.tunnel-description{min-height:420px}.principles .panel-inner{padding-block:72px 123px}.principle-grid article{min-height:218px}}@media (prefers-reduced-motion:reduce){.route-channel i,.scroll-cue i:after{animation:none}}