@import url('./design-tokens.css');
:root{font-family:ui-rounded,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans","Apple SD Gothic Neo","Microsoft YaHei",sans-serif;--paper:var(--tot-canvas);--ink:var(--tot-ink);--muted:var(--tot-muted);--line:var(--tot-line);--blue:var(--tot-blue);--orange:var(--tot-orange)}
*{box-sizing:border-box}body{margin:0;background:var(--tot-canvas);color:var(--tot-ink);min-width:320px}a{color:var(--tot-blue);text-underline-offset:4px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--tot-blue)!important;outline-offset:4px}button:active,.site-button:active{transform:translateY(1px)}
.site-nav{max-width:1280px;padding:24px 40px;border-bottom:1px solid var(--tot-line);gap:28px}.site-brand{font-size:21px;color:var(--tot-ink);letter-spacing:-.8px}.site-brand::before{content:'TOT';display:inline-grid;place-items:center;background:var(--tot-ink);color:var(--tot-surface);width:46px;height:34px;border-radius:8px;margin-right:10px;font:800 13px ui-monospace,monospace;letter-spacing:-1px}.site-links a{color:var(--tot-muted);font-weight:600}.site-links a[aria-current=page]{background:var(--tot-blue-soft);color:var(--tot-blue)}.site-nav select{border-color:var(--tot-control-line);min-height:44px;background:var(--tot-surface)}.nav-toggle{display:none;background:var(--tot-surface);border:1px solid var(--tot-control-line);border-radius:12px;padding:10px 14px;min-height:44px;color:var(--tot-ink)}.skip-link{position:fixed;top:8px;left:8px;z-index:100;background:var(--tot-surface);padding:12px;transform:translateY(-160%)}.skip-link:focus{transform:none}
.lab-shell{max-width:1280px;margin:auto;padding:0 40px}.lab-eyebrow{display:flex;align-items:center;gap:10px;color:var(--tot-blue);font:600 12px/1.5 ui-monospace,monospace;letter-spacing:1.8px;text-transform:uppercase}.lab-eyebrow::before{content:'';width:7px;height:7px;background:var(--tot-blue);border-radius:50%}.lab-hero{display:grid;grid-template-columns:1fr 1.08fr;align-items:center;gap:24px;padding:68px 0 58px}.lab-hero h1{font-size:clamp(40px,4.9vw,64px);font-weight:800;letter-spacing:-2px;line-height:1.12;margin:24px 0}.lab-hero h1 em{font-style:normal;color:var(--tot-blue)}.lab-hero p:not(.lab-eyebrow){font-size:17px;color:var(--tot-muted);line-height:1.8;max-width:520px}.site-button{background:var(--tot-blue);color:white;min-height:48px;border:1px solid transparent;font-size:15px;gap:18px;transition:background .16s,transform .16s}.site-button:hover{background:#194ba9}.site-button.secondary{background:transparent;border-color:var(--tot-control-line);color:var(--tot-ink)}.site-button.secondary:hover{background:var(--tot-surface)}.lab-footnote{font-size:13px!important;margin-top:20px}.hero-exhibit{position:relative;aspect-ratio:1.05;display:grid;place-items:center;isolation:isolate}.hero-exhibit::before{content:'';position:absolute;inset:12% 0 0;border-radius:50%;background:radial-gradient(ellipse,#e1e9ed 0%,#edf0ed 45%,transparent 70%);z-index:-1}.hero-tank{height:auto;width:112%;max-width:none;transform:translate(0,6%);filter:drop-shadow(0 15px 16px #13243a0a)}.exhibit-label{position:absolute;bottom:1%;left:10%;right:5%;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #aebac2;padding-top:15px;font:12px ui-monospace,monospace;color:var(--tot-muted)}.exhibit-label b{color:var(--tot-blue)}.exhibit-tag{position:absolute;right:0;top:4%;font:12px ui-monospace,monospace;letter-spacing:2px;color:var(--tot-muted);border:1px solid var(--tot-line);border-radius:50%;width:80px;height:80px;display:grid;place-items:center;text-align:center;transform:rotate(10deg)}.lab-strip{display:flex;justify-content:space-between;gap:24px;padding:24px 0;border-block:1px solid var(--tot-line);font-size:14px;color:var(--tot-muted)}.lab-strip b{color:var(--tot-ink);margin-right:8px}.lab-section{padding:88px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:32px}.section-heading h2,.lab-section h2{font-size:32px;line-height:1.25;letter-spacing:-.8px;margin:14px 0}.section-heading>p{max-width:430px;color:var(--tot-muted);line-height:1.7}.controller-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--tot-line)}.controller{padding:30px 28px 30px 0;min-width:0}.controller+.controller{border-left:1px solid var(--tot-line);padding-left:28px}.controller .model-mark{font:700 13px ui-monospace,monospace;color:var(--tot-muted)}.controller h3{font-size:28px;letter-spacing:-.7px;margin:18px 0 10px}.controller p{font-size:15px;line-height:1.8;color:var(--tot-muted);min-height:100px}.controller a{font-size:14px;font-weight:700}.controller-icon{height:50px;width:62px;background:var(--tot-blue-soft);border:1px solid #b3c4dc;border-radius:12px;display:grid;place-items:center;font:700 19px ui-monospace,monospace;color:var(--tot-blue);margin-bottom:24px;box-shadow:3px 4px 0 #d8e0e7}.controller:nth-child(2) .controller-icon{background:#eef0e5;color:#526342;border-color:#bcc5ac;box-shadow:3px 4px 0 #dfe2d5}.controller:nth-child(3) .controller-icon{background:var(--tot-orange-soft);color:var(--tot-orange);border-color:#dfb69f;box-shadow:3px 4px 0 #ecddd2}.journey-invite{display:grid;grid-template-columns:1fr 1fr;background:var(--tot-surface);border:1px solid var(--tot-line);border-radius:24px;overflow:hidden}.journey-invite>div{padding:48px}.journey-invite p{color:var(--tot-muted);line-height:1.8}.journey-diagram{background:var(--tot-surface-soft);display:flex;flex-direction:column;justify-content:center;gap:12px}.journey-row{display:flex;align-items:center;gap:18px;border-bottom:1px solid #d3d5d0;padding:14px 0}.journey-row b{font:500 14px ui-monospace,monospace;color:var(--tot-blue)}.journey-row span{flex:1}.journey-row code{font-size:13px;color:var(--tot-muted)}.scene-band{position:relative;border-radius:24px;overflow:hidden;background:#e4e5df}.scene-band img{width:100%;height:auto;display:block}.scene-caption{display:flex;justify-content:space-between;gap:24px;background:var(--tot-surface);padding:20px 24px;font-size:13px;color:var(--tot-muted)}.evidence-row{display:flex;justify-content:space-between;gap:40px;align-items:start;padding:40px 0}.evidence-row p{max-width:720px;line-height:1.8;color:var(--tot-muted);margin:0}.lab-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;border-top:1px solid var(--tot-line);padding:32px 0;color:var(--tot-muted);font-size:13px}.lab-footer>div{display:flex;gap:24px;flex-wrap:wrap}.site-build-credit{border-color:var(--tot-line);font-size:12px}.art-error{padding:16px;border:1px solid var(--tot-control-line);border-radius:12px;background:var(--tot-surface);color:var(--tot-muted)}.art-error button{display:block;margin-top:12px;min-height:44px;border:1px solid var(--tot-control-line);border-radius:10px;background:var(--tot-surface);padding:8px 16px}
@media(max-width:1023px){.site-nav{padding:20px 24px;gap:16px}.site-links a{padding:8px;font-size:12px}.lab-shell{padding:0 24px}.lab-hero{padding-top:44px}.lab-hero h1{font-size:48px}.lab-section{padding:64px 0}.journey-invite>div{padding:32px}.exhibit-tag{width:60px;height:60px;font-size:10px}}
@media(max-width:760px){.site-nav{padding:16px;gap:12px}.site-brand{font-size:18px}.site-brand::before{width:38px;margin-right:6px}.site-nav .language-switcher{margin-left:auto}.language-switcher>span{display:none}.nav-toggle{display:block}.site-links{display:none;order:4;flex-basis:100%;flex-direction:column}.site-links.is-open{display:flex}.site-links a{font-size:15px;min-height:44px}.lab-shell{padding:0 16px}.lab-hero{grid-template-columns:1fr;padding:36px 0 28px;gap:0}.lab-hero h1{font-size:40px;letter-spacing:-1px;max-width:560px}.lab-hero p{max-width:600px}.hero-exhibit{width:100%;max-width:540px;margin:auto;aspect-ratio:1.25}.hero-tank{width:100%;transform:none}.exhibit-label{bottom:0}.exhibit-tag{right:4%;top:5%}.lab-strip{flex-wrap:wrap;gap:14px;font-size:13px}.lab-section{padding:48px 0}.section-heading{display:block}.section-heading h2,.lab-section h2{font-size:28px}.controller-list{grid-template-columns:1fr}.controller,.controller+.controller{padding:24px 0;border-left:0}.controller+.controller{border-top:1px solid var(--tot-line)}.controller p{min-height:0}.controller-icon{float:right;margin-left:18px}.journey-invite{grid-template-columns:1fr}.journey-invite>div{padding:24px}.scene-caption{flex-direction:column;gap:8px}.evidence-row{flex-direction:column;gap:20px}.lab-footer{line-height:1.8}.site-nav select{max-width:106px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Standalone exhibit: centered camera, with no reserved copy area. */
.scene-band picture{display:block}
.scene-band img{aspect-ratio:16/9;object-fit:cover;object-position:center}
@media(max-width:760px){.scene-band img{aspect-ratio:4/3}}