:root{--bg:#eef1f5;--ink:#121a2b;--muted:#697386;--blue:#3157e6;--aqua:#22c7c9;--dark:#0b1225;--line:#cfd6e2;--white:#fff;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.lab-wrap,.shell{width:min(1240px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:100}.lab-strip{background:var(--dark);color:#91a0bd;font:11px/32px var(--mono);letter-spacing:.08em}.lab-strip .lab-wrap{display:flex;justify-content:space-between}.lab-header{height:82px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.lab-nav{height:100%;display:flex;align-items:center;justify-content:space-between}.lab-logo{display:grid;grid-template-columns:44px auto;column-gap:12px;align-items:center}.lab-logo>span{grid-row:1/3;width:44px;height:44px;background:var(--blue);color:#fff;display:grid;place-items:center;border-radius:50%;font:800 17px var(--mono)}.lab-logo b{font-size:21px;line-height:1.1}.lab-logo small{color:var(--muted);font:11px var(--mono)}.lab-nav nav{display:flex;gap:4px}.lab-nav nav a{padding:10px 12px;font-size:14px;border-bottom:2px solid transparent}.lab-nav nav a:hover,.lab-nav nav a.active{color:var(--blue);border-color:var(--blue)}.nav-toggle{display:none;background:var(--dark);color:#fff;border:0;padding:9px 14px}.home-hero{background:var(--dark);color:#fff;padding:74px 0 0}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}.eyebrow{display:inline-block;color:var(--aqua);font:700 12px var(--mono);letter-spacing:.16em;text-transform:uppercase}.home-hero h1{font-size:clamp(48px,6vw,82px);line-height:1.02;letter-spacing:-.06em;margin:24px 0}.home-hero p{max-width:650px;color:#aab6cc;font-size:18px}.hero-actions{display:flex;gap:12px;margin:30px 0 70px}.button{display:inline-flex;justify-content:center;background:var(--blue);color:#fff;padding:12px 19px;font-weight:700;border-radius:4px}.button-ghost{background:transparent;border:1px solid #536078}.hero-panel{background:#fff;color:var(--ink);padding:34px 38px;border-top:5px solid var(--aqua);box-shadow:12px 12px 0 var(--blue)}.hero-panel>span{font:12px var(--mono);color:var(--muted)}.hero-panel>strong{display:block;font:800 58px var(--mono);margin:10px 0 20px}.hero-panel ul{list-style:none;padding:0;margin:0}.hero-panel li{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:12px 0}.hero-panel li span{color:var(--muted)}.section{padding:84px 0}.section h2{font-size:clamp(32px,4vw,52px);line-height:1.12;letter-spacing:-.04em;margin:14px 0}.lead{color:var(--muted);max-width:720px}.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px;margin-top:42px}.feature-card{background:#fff;border:1px solid var(--line);padding:28px;min-height:210px;display:flex;flex-direction:column}.feature-card:nth-child(1),.feature-card:nth-child(4){grid-column:span 5}.feature-card:nth-child(2),.feature-card:nth-child(3),.feature-card:nth-child(5),.feature-card:nth-child(6){grid-column:span 3.5}.feature-card:nth-child(2),.feature-card:nth-child(5){grid-column:span 3}.feature-card:nth-child(3),.feature-card:nth-child(6){grid-column:span 4}.feature-card span{font:700 12px var(--mono);color:var(--blue)}.feature-card h3{font-size:24px;margin:auto 0 6px}.feature-card p{margin:0;color:var(--muted)}.feature-card:hover{background:var(--blue);color:#fff}.feature-card:hover p,.feature-card:hover span{color:#dce3ff}.section-dark{background:#151e34;color:#fff}.split{display:grid;grid-template-columns:1fr 1fr;gap:90px}.section-dark p{color:#aebbd1}.notice{background:#e8ecff;border-left:4px solid var(--blue);color:var(--ink);padding:18px 20px;margin:24px 0}.principles{border-top:1px solid #43506a}.principles div{display:grid;grid-template-columns:140px 1fr;padding:19px 0;border-bottom:1px solid #43506a}.principles b{font:700 13px var(--mono);color:var(--aqua)}.principles span{color:#c2cbe0}.page-hero{background:var(--dark);color:#fff;padding:64px 0;border-bottom:8px solid var(--blue)}.crumb{display:flex;gap:8px;color:#7f8ca6;font:12px var(--mono);margin-bottom:28px}.crumb a{color:var(--aqua)}.page-hero h1{font-size:clamp(38px,5vw,64px);max-width:960px;line-height:1.08;letter-spacing:-.045em;margin:14px 0}.page-hero p{color:#aebbd1;max-width:820px;font-size:17px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.article-list{display:grid;gap:0;border-top:1px solid var(--line)}.article-row{display:grid;grid-template-columns:110px 1fr;background:#fff;border-bottom:1px solid var(--line);padding:28px}.article-row:hover{box-shadow:inset 5px 0 var(--blue)}.article-row .metric{font:700 12px var(--mono);color:var(--blue)}.tag{font:700 11px var(--mono);color:var(--blue);text-transform:uppercase}.article-row h2{font-size:24px;margin:6px 0}.article-row p{margin:0;color:var(--muted)}.sidebar{background:var(--dark);color:#fff;padding:24px;position:sticky;top:104px}.sidebar h2{margin-top:0;font-size:18px}.sidebar ol{padding-left:20px;color:#afbad0}.sidebar li{margin:10px 0}.prose{background:#fff;padding:44px 54px;border-top:5px solid var(--blue)}.prose>p:first-child{font:12px var(--mono);color:var(--blue)}.prose h2{font-size:26px;margin:42px 0 10px;padding-top:16px;border-top:1px solid var(--line)}.prose p{color:#465166}.lab-footer{background:#070d1c;color:#9da9c0;padding:55px 0 18px}.lab-footer-grid{display:grid;grid-template-columns:1.1fr .6fr 1fr;gap:70px}.lab-footer-name{font-size:24px;color:#fff;font-weight:800}.lab-footer b{display:block;color:#fff;margin-bottom:12px}.lab-footer a,.lab-footer span{display:block;margin:6px 0}.lab-footer-line{border-top:1px solid #273149;margin-top:35px;padding-top:16px;display:flex;justify-content:space-between;font:11px var(--mono)}.download-lab{display:grid;grid-template-columns:270px 1fr;gap:24px}.download-index{background:var(--dark);color:#fff;padding:26px;position:sticky;top:105px;align-self:start}.download-index b{font:13px var(--mono);color:var(--aqua)}.download-index p{color:#aab6ca}.download-table{background:#fff;border-top:4px solid var(--blue)}.download-row{display:grid;grid-template-columns:56px 1fr 180px;gap:20px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line)}.download-row .code{font:700 12px var(--mono);color:var(--blue)}.download-row h2{font-size:19px;margin:0}.download-row p{font-size:13px;color:var(--muted);margin:3px 0}.download-row .button{font-size:13px}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.contact-item{background:#fff;padding:26px;border-top:4px solid var(--blue)}
@media(max-width:1000px){.nav-toggle{display:block}.lab-nav nav{display:none;position:absolute;top:82px;left:24px;right:24px;background:#fff;border:1px solid var(--line);padding:12px;box-shadow:0 18px 40px #121a2b33;flex-direction:column}.lab-nav nav.open{display:flex}.hero-grid,.split,.content-layout,.download-lab{grid-template-columns:1fr}.hero-panel{margin-bottom:-45px}.home-hero{padding-bottom:45px}.sidebar,.download-index{position:static}.card-grid{grid-template-columns:1fr 1fr}.feature-card:nth-child(n){grid-column:auto}.lab-footer-grid{grid-template-columns:1fr 1fr}.lab-footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:620px){.lab-wrap,.shell{width:min(100% - 28px,1240px)}.lab-strip{display:none}.lab-header{height:68px}.lab-logo small{display:none}.lab-nav nav{top:68px;left:14px;right:14px}.home-hero{padding-top:48px}.home-hero h1{font-size:47px}.hero-grid{gap:24px}.hero-actions{margin-bottom:20px}.hero-panel{padding:25px;box-shadow:7px 7px 0 var(--blue)}.section{padding:58px 0}.card-grid{grid-template-columns:1fr}.feature-card{min-height:170px}.page-hero{padding:44px 0}.page-hero h1{font-size:38px}.article-row{grid-template-columns:1fr;padding:22px}.article-row .metric{margin-bottom:8px}.prose{padding:26px 22px}.download-row{grid-template-columns:42px 1fr}.download-row .button{grid-column:1/-1}.lab-footer-grid{grid-template-columns:1fr;gap:28px}.lab-footer-grid>div:first-child{grid-column:auto}.lab-footer-line{display:block}.contact-grid{grid-template-columns:1fr}}