:root{--bg:#080b08;--surface:#11170f;--surface2:#182116;--ink:#edf1e8;--muted:#9ba593;--line:#303a2a;--green:#b4fa50;--font:'Inter','PingFang SC','MiSans','HarmonyOS Sans SC','Microsoft YaHei',sans-serif;--font-display:'Smiley Sans','PingFang SC','MiSans','HarmonyOS Sans SC','Microsoft YaHei',sans-serif;--font-latin:'Bricolage Grotesque','Inter','PingFang SC',sans-serif;--font-mono:'Departure Mono','Geist Mono','JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;color-scheme:dark;font-family:var(--font);background:var(--bg);color:var(--ink)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--green);outline-offset:4px}::selection{background:var(--green);color:var(--bg)}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500;line-height:1.12;letter-spacing:-.045em}p{color:var(--muted)}.shell{width:calc(100% - 112px);max-width:1488px;margin-inline:auto}.skip{position:fixed;left:20px;top:-80px;z-index:100;background:var(--green);color:var(--bg);padding:10px}.skip:focus{top:12px}.lab-header{height:96px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:28px}.wordmark{font-size:21px;font-weight:700;letter-spacing:-.04em}.wordmark small{font-size:10px;font-weight:400;color:var(--muted);margin-left:10px;letter-spacing:.04em}.lab-header nav{display:flex;align-items:center;gap:28px;font-size:13px}.lab-header nav a:hover,.back:hover{color:var(--green)}.header-cta{border-bottom:1px solid #728661;padding:6px 0}.header-cta span{color:var(--green);margin-left:16px}.menu{display:none;color:var(--ink);background:transparent;border:1px solid var(--line);padding:8px 12px}.kicker{font:11px/1.4 var(--font-mono);letter-spacing:.1em;color:var(--green)}.lab-hero{min-height:690px;padding:72px 0 80px;display:grid;align-content:space-between;position:relative}.lab-hero::before{content:'';position:absolute;inset:28px 0 auto 52%;height:1px;background:linear-gradient(90deg,var(--green),transparent)}.lab-index{display:flex;justify-content:space-between;color:var(--muted);font:11px var(--font-mono)}.lab-hero h1{font-size:clamp(64px,10vw,154px);line-height:.88;max-width:1280px;margin-top:68px}.lab-hero h1 em{font-style:normal;color:var(--green)}.hero-bottom{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-top:70px}.hero-bottom .lead{font-size:clamp(20px,2.1vw,30px);color:var(--ink);max-width:600px}.hero-bottom .intro{max-width:520px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;justify-content:space-between;align-items:center;min-width:190px;gap:34px;padding:13px 17px;border:1px solid var(--line);font-size:14px}.btn.primary{background:var(--green);border-color:var(--green);color:var(--bg)}.btn:hover span{transform:translate(3px,-3px)}.btn span{font-size:18px;transition:transform .2s}.section{padding:110px 0;border-top:1px solid var(--line)}.section-head{display:grid;grid-template-columns:1fr 2fr;gap:60px;margin-bottom:58px}.section-head h2{font-size:clamp(42px,6vw,88px)}.section-head p{max-width:510px;margin-top:12px}.lab-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.lab-card{min-height:430px;padding:28px;display:flex;flex-direction:column;border-right:1px solid var(--line);background:linear-gradient(145deg,#121910,#0a0d09);position:relative;overflow:hidden;transition:background .25s}.lab-card:last-child{border-right:0}.lab-card::after{content:'';position:absolute;width:230px;height:230px;border:1px solid #b4fa5028;border-radius:50%;right:-115px;bottom:-115px;transition:.5s cubic-bezier(.2,.8,.2,1)}.lab-card:hover::after,.lab-card.is-open::after{right:-75px;bottom:-75px;box-shadow:0 0 70px #b4fa5018}.lab-card:hover,.lab-card.is-open{background:#172113}.lab-card .no{font:11px var(--font-mono);color:var(--green)}.lab-card h2{font-size:clamp(32px,3.2vw,52px);margin:80px 0 20px}.lab-card p{max-width:320px}.lab-card .card-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;position:relative;z-index:1;font-size:12px}.lab-card .card-foot b{color:var(--green);font-size:18px}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.detail{background:var(--bg);padding:30px;min-height:230px}.detail small{font:10px var(--font-mono);color:var(--green)}.detail h3{font-size:27px;margin:42px 0 12px}.case{display:grid;grid-template-columns:.72fr 1.28fr;border-top:1px solid var(--line)}.case-label{padding:32px 0}.case-label span{display:block;color:var(--green);font:11px var(--font-mono)}.case-label h2{font-size:clamp(36px,4vw,62px);margin-top:46px}.case-steps{border-left:1px solid var(--line)}.case-step{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:30px;border-bottom:1px solid var(--line)}.case-step span{font:10px var(--font-mono);color:var(--green)}.case-step h3{font-size:23px;margin-bottom:8px}.canvas-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}.canvas-cell{min-height:250px;padding:25px;border-right:1px solid var(--line);position:relative}.canvas-cell:last-child{border:0}.canvas-cell small{font:10px var(--font-mono);color:var(--green)}.canvas-cell h3{font-size:25px;margin:50px 0 12px}.canvas-cell::after{content:'+';position:absolute;right:18px;bottom:14px;color:#62715a;font:20px var(--font-mono)}.diagnostic{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.diagnostic-copy{position:sticky;top:28px}.diagnostic-copy h2{font-size:clamp(42px,5.3vw,78px);margin:22px 0}.diagnostic-form{border:1px solid var(--line);padding:32px;background:#0e130c}.field{display:grid;gap:8px;margin-bottom:22px}.field label{font-size:13px}.field textarea,.field select{width:100%;background:#070907;color:var(--ink);border:1px solid var(--line);padding:13px 14px;border-radius:0}.field textarea{min-height:110px;resize:vertical}.diagnostic-form button[type="submit"]{width:100%;background:var(--green);color:var(--bg);border:0;padding:15px}.result{display:none;margin-top:24px;border-left:2px solid var(--green);padding:4px 0 4px 18px}.result.show{display:block}.result strong{display:block;font-size:22px}.result p{margin-top:6px}.cta-section{background:var(--green);color:var(--bg);padding:78px 0}.cta-section .shell{display:flex;justify-content:space-between;gap:50px;align-items:end}.cta-section h2{font-size:clamp(42px,6vw,90px);max-width:850px}.cta-section p{color:#2f421d;max-width:420px}.cta-section .btn{border-color:#263719;margin-top:24px}.lab-footer{padding:38px 0;display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.lab-footer a:hover{color:var(--green)}
@media(max-width:900px){.shell{width:calc(100% - 56px)}.lab-header nav{gap:14px}.lab-hero{min-height:620px}.hero-bottom,.section-head,.diagnostic{grid-template-columns:1fr;gap:28px}.lab-grid{grid-template-columns:1fr}.lab-card{min-height:300px;border-right:0;border-bottom:1px solid var(--line)}.lab-card h2{margin-top:52px}.detail-grid{grid-template-columns:1fr}.detail{min-height:180px}.case{grid-template-columns:1fr}.case-steps{border-left:0}.canvas-grid{grid-template-columns:1fr 1fr}.canvas-cell:nth-child(2){border-right:0}.canvas-cell{border-bottom:1px solid var(--line)}.diagnostic-copy{position:static}.cta-section .shell{align-items:start;flex-direction:column}.section{padding:80px 0}}
@media(max-width:600px){.shell{width:calc(100% - 36px)}.lab-header{height:76px;position:relative}.lab-header nav{display:none;position:absolute;top:76px;left:-18px;right:-18px;background:#0c100b;padding:20px;z-index:20;border-bottom:1px solid var(--line)}.lab-header nav.open{display:flex;flex-direction:column;align-items:flex-start}.menu{display:block}.lab-hero{min-height:570px;padding:48px 0 58px}.lab-hero h1{font-size:17.5vw;margin-top:48px}.hero-bottom{margin-top:52px}.section{padding:64px 0}.section-head{margin-bottom:36px}.lab-card{padding:22px}.case-step{grid-template-columns:1fr;gap:8px;padding:24px 0}.canvas-grid{grid-template-columns:1fr}.canvas-cell{border-right:0;min-height:190px}.diagnostic-form{padding:20px}.cta-section{padding:58px 0}.lab-footer{flex-wrap:wrap;gap:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
.lab-grid:has(>.lab-card:nth-child(2):last-child){grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.lab-grid:has(>.lab-card:nth-child(2):last-child){grid-template-columns:1fr}}
.lab-hero h1{line-height:1.08} .lab-header a,.lab-footer a{min-height:44px;display:inline-flex;align-items:center}
.canvas-cell::after{content:none}
@media(max-width:600px){.lab-hero h1{font-size:clamp(36px,12.8vw,64px);line-height:1.18}.lab-index{font-size:10px;gap:14px}.lab-hero{min-height:0}.hero-bottom{margin-top:38px}}


/* ===== Redesign 2026-09-16 (shared language with the homepage) ===== */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.32s}
html.lenis{scroll-behavior:auto}
h1,h2,h3{font-family:var(--font-display);font-weight:400;font-synthesis:none;letter-spacing:0;line-height:1.12;text-wrap:balance}
.lab-hero h1{font-size:clamp(64px,10.4vw,160px);line-height:1.04}
.wordmark{font-family:var(--font-latin);font-weight:800;letter-spacing:-.05em}
.wordmark small{font-family:var(--font-mono);letter-spacing:.06em}
.kicker,.lab-index,.lab-card .no,.detail small,.case-label span,.case-step span,.canvas-cell small,.result small,.lab-footer,.card-foot{font-family:var(--font-mono)}
.kicker,.lab-card .no,.detail small,.case-label span,.case-step span,.canvas-cell small,.lab-index{font-size:11px;letter-spacing:.08em}
.lab-card h2{font-family:var(--font-latin);font-weight:700;letter-spacing:-.03em;line-height:1}
.lab-card h2:lang(zh-Hans){font-family:var(--font-display);font-weight:400;letter-spacing:0;line-height:1.12}
.lab-card h2.cn{font-family:var(--font-display);font-weight:400;letter-spacing:0;line-height:1.12}
.result strong{font-family:var(--font-display);font-weight:400}
.cta-section h2{line-height:1.08}
.topo-bg{position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(110% 70% at 78% 0%,#0e160b 0%,#080b08 58%)}
.topo-bg canvas{display:block;width:100%;height:100%}
.topo-bg::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(8,11,8,0) 72%,rgba(8,11,8,.6) 100%)}
#ambient-field{position:fixed;inset:0;width:100%;height:100%;z-index:1;pointer-events:none}
html.motion-reduced #ambient-field{display:none}
.lab-header,main,.lab-footer{position:relative;z-index:2}
.lab-card,.detail,.diagnostic-form,.canvas-cell{background-color:#0c110a}
.mf-cursor{color:var(--green)}
.mf-cursor:before{width:40px;height:40px;top:-20px;left:-20px;transform:scale(.3)}
.mf-cursor.-pointer:before{transform:scale(.9);background:transparent;box-shadow:inset 0 0 0 1.5px currentColor;opacity:.95}
.mf-cursor.-text:before{transform:scale(2.1);opacity:1;background:currentColor;box-shadow:none}
.mf-cursor.-inverse{color:#101709}
.mf-cursor-text{color:#101709;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;width:44px;height:44px;top:-22px;left:-22px}
html.has-cursor body,html.has-cursor a,html.has-cursor button,html.has-cursor label,html.has-cursor select,html.has-cursor textarea{cursor:none}
@media(max-width:600px){.lab-hero h1{font-size:clamp(40px,13.4vw,68px);line-height:1.14}}
@media(prefers-reduced-motion:reduce){#ambient-field{display:none}}

html:not(.font-smiley) h1,html:not(.font-smiley) h2,html:not(.font-smiley) h3{font-weight:500;letter-spacing:-.02em}

.result .result-cta{margin-top:18px;display:inline-flex}

/* contour field recedes while scrolling */
.topo-bg canvas{transition:opacity .6s ease}
.topo-bg.is-scrolling canvas{opacity:.35}
/* ===== header + footer: identical to the homepage ===== */
.lab-header .wordmark{display:block;width:145px;height:40px;min-height:0;padding:0;font-size:0}
.lab-header .wordmark img{display:block;width:145px;height:auto;mix-blend-mode:lighten}
.lab-header .header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 22px;border-radius:999px;background:var(--green);color:var(--bg);font-size:14px;font-weight:500;transition:background .2s}
.lab-header .header-cta:hover,.lab-header .header-cta:focus-visible{background:#c9ff78;color:var(--bg)}
.lab-header .header-cta span{display:none}
footer{position:relative;z-index:2;font-family:var(--font);color:var(--ink)}
.footer-grid>div{display:flex;align-items:center;gap:24px;font-size:12px}
.footer-grid>div a:hover{color:var(--green)}
footer{padding-block:40px;display:flex;align-items:center;justify-content:space-between;gap:30px}
footer>span{font:10px var(--font-mono);letter-spacing:.06em;color:var(--muted)}
.footer-brand{font-weight:700;font-size:27px;letter-spacing:-.07em}
.footer-brand span{font-size:12px;font-weight:400;display:block;letter-spacing:.1em}
footer>div{display:flex;align-items:center;gap:24px;font-size:12px}
@media(max-width:600px){footer{align-items:start;flex-wrap:wrap;padding-block:30px;gap:24px}
footer>span{display:none}
footer>div{margin-left:auto;flex-direction:column;align-items:end;gap:16px}
.footer-brand{font-size:25px}
}
.footer-brand{font-family:var(--font-latin);font-weight:800;letter-spacing:-.05em}
.footer-brand span{font-family:var(--font);letter-spacing:.1em}
.ticker{position:relative;z-index:2;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 0;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--green);white-space:nowrap;background:var(--bg)}
.ticker-track{display:inline-flex;animation:ticker 34s linear infinite;will-change:transform}
.ticker-set{display:inline-flex;align-items:center;gap:36px;padding-right:36px}
.ticker-set i{width:5px;height:5px;background:var(--green);border-radius:50%;opacity:.6}
@keyframes ticker{to{transform:translateX(-50%)}}
footer{display:block;padding:0;container-type:inline-size}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:40px 0 8px}
.footer-tag{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--muted)}
.footer-mark{font-family:var(--font-latin);font-weight:800;font-size:19.2cqi;line-height:.78;letter-spacing:-.06em;text-align:center;user-select:none;margin-top:14px;margin-bottom:-.09em;overflow:hidden;background:linear-gradient(180deg,#26321f 0%,#0c110a 92%);-webkit-background-clip:text;background-clip:text;color:transparent}
html.motion-reduced .ticker-track{animation:none}
@media(prefers-reduced-motion:reduce){.ticker-track{animation:none}
}
@media(max-width:900px){.footer-grid{flex-wrap:wrap;align-items:start}
}
@media(max-width:600px){.ticker{padding:11px 0;font-size:10px}
.footer-grid{padding-top:30px}
.footer-mark{font-size:24cqi}
.footer-tag{display:none}
}
.footer-grid{flex-wrap:wrap;row-gap:14px}
.footer-legal{flex-basis:100%;display:block;font-size:11px;color:#6f7f66;padding-bottom:6px}
.footer-legal a{color:inherit;border-bottom:1px solid #2b3426}
.footer-legal a:hover{color:var(--green);border-color:var(--green)}
@media(max-width:600px){.footer-legal{padding-bottom:0}
}
.ticker{border-top:1px solid var(--line)}
.footer-grid{padding:34px 0 6px}
.footer-brand-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.footer-email{font-size:13px;color:var(--ink);border-bottom:1px solid #3b4933;padding-bottom:4px;transition:color .2s,border-color .2s}
.footer-email:hover{color:var(--green);border-color:var(--green)}
.ticker{opacity:.72}
.ticker-track{animation-duration:64s}
/* ===== self-check: pick a department and a task instead of filling a form ===== */
.picker .field{margin-bottom:18px}
.field-label{display:block;font-size:13px;margin-bottom:8px}
.picker .dept-tabs{display:flex;flex-wrap:wrap;gap:8px}
.picker .dept-tab{border:1px solid var(--line);background:#070907;color:var(--muted);padding:9px 14px;font-size:13px;transition:border-color .2s,color .2s}
.picker .dept-tab:hover{color:var(--ink)}
.picker .dept-tab.is-active{border-color:var(--green);color:var(--green)}
.picker .task-list{display:grid;gap:8px}
.picker .task{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;text-align:left;border:1px solid var(--line);background:#070907;color:var(--ink);padding:12px 14px;font-size:14px;transition:border-color .2s,background .2s}
.picker .task:hover{border-color:#5a7a3c}
.picker .task.is-active{border-color:var(--green);background:#0f160d}
.picker .task i{font-style:normal;font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--muted)}
.picker .task.is-active i{color:var(--green)}
.result .map{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}
.result .map div{border:1px solid var(--line);padding:10px 12px;background:#070907}
.result .map small,.result .split small{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--muted);margin-bottom:6px}
.result .map b{display:block;font-weight:500;font-size:13px;line-height:1.5;color:var(--ink)}
.result .split{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px;border-top:1px solid var(--line);padding-top:14px}
.result .split p{font-size:13px;line-height:1.6;margin:0}
.result .split div:first-child small{color:var(--green)}
.picker-note{margin-top:18px;font-size:12px;color:var(--muted)}
.picker-note a{color:var(--green);border-bottom:1px solid #3b4933}
.result-contact-note{margin-top:12px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:12px}
.result-copy-email{border:1px solid var(--line);padding:4px 8px;background:transparent;color:var(--green);font-size:12px}
.copy-email-status{flex-basis:100%;color:var(--muted)}
@media(max-width:700px){.result .map{grid-template-columns:1fr 1fr}.result .split{grid-template-columns:1fr}}

/* footer links (same as the homepage) and the four-step method grid on Lab 总览 */
.footer-links{display:flex;align-items:center;flex-wrap:wrap;gap:10px 24px;font-size:12px}
.footer-links a{transition:color .2s}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--green)}
.detail-grid.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:1100px){.detail-grid.four{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.detail-grid.four{grid-template-columns:1fr}}