/* Approved laboratory content. Shared header and footer remain in site styles. */
.lab-document{scroll-padding-top:var(--site-nav-height)}
.lab-document .header{position:sticky;top:0;background:rgba(11,13,26,.94);backdrop-filter:blur(18px)}
.lab-wrap{width:min(1040px,calc(100% - 80px));margin:0 auto 20px;flex:1;--muted:#9699a9;--line:#272a39;--white:#f2f1eb}
.lab-wrap :where(h1,h2,p){margin:0}
.lab-wrap button{cursor:pointer;touch-action:manipulation}
.lab-wrap svg{display:block}
.lab-wrap button:focus-visible,.lab-wrap a:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
.lab-gallery:not([data-enhanced]) .lab-gallery-toolbar{display:none}
.lab-direct-media{padding:12px 0;color:var(--muted);font-size:13px;line-height:1.8}
.lab-wrap>.lab-concept-note{width:100%;max-width:none;margin:8px auto 0;font-size:.6875rem;line-height:1.65;color:#7c8192;text-align:center;text-wrap:balance}
.lab-provenance-line{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0 12px;max-width:100%}
.lab-hardware-link{display:inline-flex;align-items:center;gap:6px;vertical-align:middle;white-space:nowrap}
.lab-watcher-icon{position:relative;display:inline-block;flex:none;width:24px;height:28px;overflow:hidden;border-radius:4px;background:#fff}
.lab-watcher-icon img{display:block;width:100%;height:100%}
.lab-intro{display:flex;align-items:center;justify-content:center;padding:var(--page-top-space) 0 22px}.lab-intro p{font-size:clamp(18px,1.55vw,24px);font-weight:400;letter-spacing:-.035em;color:var(--white);line-height:1.45;text-align:center;text-wrap:balance}.lab-intro p em{font-style:normal;background:linear-gradient(100deg,var(--gold),var(--cyan));background-clip:text;-webkit-background-clip:text;color:transparent}.lab-project-intro{padding:0 0 23px}.lab-project-intro h2{font-size:1.625rem;font-weight:450;letter-spacing:-.035em;line-height:1.3}.lab-project-description{font-size:.875rem;color:var(--muted);line-height:1.85;margin-top:9px;max-width:760px;text-wrap:pretty}
.lab-gallery-window{overflow:hidden;touch-action:pan-y;isolation:isolate;border-radius:12px}.lab-gallery-track{display:grid;position:relative;aspect-ratio:16/9;isolation:isolate}.lab-slide{grid-area:1/1;position:relative;width:100%;height:100%;min-width:0;min-height:0;overflow:hidden;background:#163a2e;opacity:0;z-index:0;pointer-events:none;transition:opacity .9s ease;container-type:inline-size}.lab-slide[data-active]{opacity:1;z-index:2;pointer-events:auto}.lab-slide[data-outgoing]{opacity:1;z-index:1}.lab-slide video{display:block;width:100%;height:100%;object-fit:contain;background:#163a2e}.lab-slide-caption{position:absolute;bottom:16px;left:20px;font-size:.6875rem;color:#c8d7c8;line-height:1.6;background:#133629c2;padding:4px 9px;border-radius:4px;pointer-events:none}
.lab-slide[data-static] video{visibility:hidden}
.lab-companion-still{display:none;position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#163a2e}
.lab-slide[data-static] .lab-companion-still{display:block}

/* The shared clip has a Chinese greeting baked into its first shot. */
.lab-companion-greeting{display:none}
.lab-document:lang(en) .lab-companion-greeting{position:absolute;z-index:1;left:3.8%;top:36.5%;display:flex;align-items:center;box-sizing:border-box;width:21%;height:20.5%;padding-left:1cqw;background:linear-gradient(180deg,#133026,#122d23);color:#f2f5e4;font-family:Arial,Helvetica,sans-serif;font-size:clamp(24px,7.7cqw,150px);font-weight:700;letter-spacing:-.045em;white-space:nowrap;pointer-events:none}

/* The filmed reply and later replies share one responsive bubble. */
.lab-companion-followup{position:absolute;inset:0;z-index:2;visibility:hidden;opacity:0;pointer-events:none;background:linear-gradient(90deg,#12352b 0 42%,rgba(18,53,43,.9) 49%,transparent 59%);transition:opacity .65s ease,visibility 0s linear .65s}
.lab-slide[data-followup] .lab-companion-followup{visibility:visible;opacity:1;transition:opacity .65s ease}
.lab-slide[data-followup-phase="filmed"] .lab-companion-followup{transition:opacity .12s ease}
.lab-companion-followup-kicker,.lab-companion-reply,.lab-companion-followup-face{position:absolute;display:flex;align-items:center;box-sizing:border-box}
.lab-companion-followup-kicker{left:3%;top:27%;color:#b6c8b9;font-size:clamp(10px,1.05vw,18px);letter-spacing:.04em}
.lab-companion-reply{left:2.8%;top:39%;width:max-content;min-width:clamp(118px,14%,160px);max-width:50%;height:clamp(42px,9%,68px);padding:0 clamp(19px,2vw,36px);border-radius:12px;background:#d4ee9c;color:#1b3c2e;font-size:clamp(12px,1.2vw,23px);font-weight:500;line-height:1.4;white-space:nowrap;opacity:0;transition:opacity .45s ease}
.lab-document:lang(en) .lab-companion-reply{min-width:clamp(150px,29%,230px);max-width:58%;height:clamp(54px,12%,78px);white-space:normal;text-wrap:pretty}
.lab-slide[data-followup-phase="filmed"] .lab-companion-reply[data-reply="filmed"],.lab-slide[data-followup-phase="first"] .lab-companion-reply[data-reply="first"],.lab-slide[data-followup-phase="second"] .lab-companion-reply[data-reply="second"],.lab-slide[data-followup-phase="third"] .lab-companion-reply[data-reply="third"]{opacity:1}
.lab-companion-followup-face{left:63.8%;top:51.4%;width:19.9%;height:6.6%;justify-content:center;border:1px solid #69896b;border-radius:999px;background:#173c2d;color:#e2eadf;font-size:clamp(8px,.95vw,16px);white-space:nowrap;transform:scale(.94);transition:transform .75s ease}
.lab-companion-face-reply{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .45s ease}
.lab-slide[data-followup-phase="filmed"] .lab-companion-face-reply[data-reply="filmed"],.lab-slide[data-followup-phase="first"] .lab-companion-face-reply[data-reply="first"],.lab-slide[data-followup-phase="second"] .lab-companion-face-reply[data-reply="second"],.lab-slide[data-followup-phase="third"] .lab-companion-face-reply[data-reply="third"]{opacity:1}
.lab-slide[data-followup] .lab-companion-followup-face{transform:scale(1)}
.lab-slide[data-outgoing] .lab-companion-followup-kicker,.lab-slide[data-outgoing] .lab-companion-reply,.lab-slide[data-outgoing] .lab-companion-face-reply{opacity:0;transition:opacity .25s ease}

.lab-gallery-toolbar{display:flex;align-items:center;gap:20px;min-height:51px;margin-bottom:12px}.lab-playback{width:42px;height:42px;background:none;border:0;border-radius:50%;color:var(--muted);display:grid;place-items:center}.lab-playback:hover{color:var(--white);background:#ffffff07}.lab-icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.lab-feature-tabs{flex:1;min-width:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.lab-feature-tab{position:relative;display:block;width:100%;text-align:center;font-size:.875rem;line-height:1.5;color:var(--muted);background:none;border:0;padding:9px 0 14px;min-height:50px}.lab-feature-tab[aria-selected=true]{color:var(--white)}.lab-feature-tab:after{content:"";position:absolute;bottom:5px;left:0;width:100%;height:2px;background:var(--line);opacity:1}.lab-feature-tab[aria-selected=true]:after{opacity:1}.lab-feature-tab .lab-progress{position:absolute;bottom:5px;left:0;height:2px;background:var(--gold);width:0;z-index:1}
.lab-repo-row{display:flex;flex-direction:column;align-items:center;gap:4px;padding:19px 0 20px;font-size:.8125rem;line-height:1.8;color:var(--muted)}.lab-concept-note{max-width:100%}.lab-hardware-group{display:inline-flex;align-items:center;min-height:44px;gap:4px;white-space:nowrap}.lab-hardware-link{color:var(--white);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#7b7f8c}.lab-hardware-link:hover{color:var(--gold)}.lab-repo-links{display:inline-flex;vertical-align:middle;align-items:center;gap:8px;flex-wrap:nowrap;white-space:nowrap}.lab-brain-label{white-space:nowrap;font-size:.8125rem;color:var(--muted)}.lab-repo-link{flex-shrink:0;display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted);min-height:44px}.lab-repo-link:hover{color:var(--white)}.lab-repo-link .lab-brand-icon{width:19px;height:19px;fill:currentColor}.lab-repo-link .lab-icon{width:13px;height:13px}.lab-repo-link.lab-gitee:hover{color:#e96666}.lab-visually-hidden{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}.lab-skip{position:fixed;top:-60px;left:20px;padding:12px;background:var(--gold);color:var(--ink);z-index:100}.lab-skip:focus{top:12px}

/* Keep the complete desktop page visible; short windows retain readable media. */
@media(min-width:781px){
  .lab-wrap{--lab-frame-budget:390px;width:min(980px,max(580px,calc((100vh - var(--lab-frame-budget))*16/9)),calc(100% - 80px));width:min(980px,max(580px,calc((100svh - var(--lab-frame-budget))*16/9)),calc(100% - 80px));margin-bottom:8px}
  .lab-document:lang(en) .lab-wrap{--lab-frame-budget:425px}
  .lab-intro{padding-bottom:10px}
  .lab-project-intro{display:flex;align-items:center;gap:16px;padding-bottom:12px}
  .lab-project-intro h2{font-size:1.375rem;white-space:nowrap}
  .lab-project-intro .lab-project-description{flex:1;min-width:0;max-width:none;margin:0}
  .lab-gallery-toolbar{min-height:44px;margin-bottom:8px}
  .lab-feature-tab{min-height:44px;padding:6px 0 12px}
  .lab-repo-row{padding:8px 0}
}
@media(max-width:850px){.lab-slide-caption{bottom:12px;left:14px}}
@media(max-width:780px){.lab-document:lang(zh-CN) .lab-intro .lab-intro-lead,.lab-document:lang(zh-CN) .lab-intro em{display:block}}
@media(max-width:780px){.lab-wrap{width:calc(100% - 40px)}.lab-intro p{max-width:42ch}.lab-project-intro{padding-bottom:20px}.lab-project-intro h2{font-size:1.375rem}.lab-project-description{line-height:1.8;margin-top:10px}.lab-gallery-window{border-radius:9px}.lab-slide-caption{font-size:.6875rem;left:10px;bottom:8px;padding:2px 5px}.lab-playback{width:38px;height:40px;flex-shrink:0}.lab-repo-row{padding-bottom:17px}.lab-repo-links{gap:8px}.lab-repo-link{gap:5px}}
@media(max-width:780px){.lab-document:lang(en) .lab-companion-reply{top:34%}}
@media(max-width:480px){.lab-companion-followup-face{left:59.4%;top:48.5%;width:29%;height:12%;font-size:9px}}
@media(max-width:360px){.lab-repo-link>.lab-icon{display:none}}
@media(prefers-reduced-motion:reduce){.lab-slide,.lab-companion-followup,.lab-companion-followup-face,.lab-companion-reply,.lab-companion-face-reply{transition:none}}

/* Desktop: project introduction / adaptive gallery / project provenance. */
@media(min-width:1200px){
  .lab-wrap{display:flex;flex-direction:column;width:min(1600px,calc(100% - 80px))}
  .lab-project{display:grid;grid-template-columns:260px minmax(0,1fr) 260px;gap:12px 24px;align-items:center;align-content:center;flex:1;min-height:0}
  .lab-project-intro{display:contents}
  .lab-project-intro h2{grid-column:2;grid-row:1;justify-self:center}
  .lab-project-intro .lab-project-description{grid-column:1;grid-row:2;max-width:230px;margin:0}
  .lab-gallery{grid-column:2;grid-row:2;width:100%;max-width:calc((100vh - 375px)*16/9);max-width:calc((100svh - 375px)*16/9);justify-self:center;min-width:0}
  .lab-repo-row{grid-column:3;grid-row:2;flex-direction:column;align-items:center;gap:14px;padding:0}
  .lab-repo-link{gap:5px}
  .lab-repo-link>.lab-icon{display:none}
}

/* One remembered scene: the circular comic and its accompanying words. */
.lab-memory-scene{position:absolute;inset:0;display:grid;grid-template-rows:auto minmax(0,280px) auto;align-content:center;align-items:center;justify-items:center;gap:12px;padding:20px 24px;background:#15352c}
.lab-memory-copy{width:100%;display:grid;align-content:center;font-size:clamp(13px,1.2vw,16px);line-height:1.8;text-align:center;position:relative;z-index:1}
.lab-memory-moment{margin:0;font-size:12px;line-height:1.5;color:#91a79b;letter-spacing:.06em}
.lab-memory-copy .lab-memory-line{display:block;max-width:32em;margin:0 auto;font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:inherit;font-weight:300;line-height:inherit;letter-spacing:.055em;color:#bdc9c0;text-wrap:balance;quotes:"“" "”"}
.lab-memory-circle{position:relative;align-self:end;height:100%;max-height:280px;width:auto;aspect-ratio:1;max-width:100%;min-height:0;overflow:hidden;border-radius:50%;isolation:isolate;box-shadow:none}
.lab-memory-circle video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#163a2e}
.lab-memory-stills{display:none;position:absolute;inset:0;overflow:hidden;background:#163a2e}
.lab-memory-panel[data-static] .lab-memory-stills{display:block}
.lab-memory-stills img{position:absolute;left:-4.468%;top:-4.468%;width:108.936%;height:108.936%;object-fit:cover;opacity:0;transition:opacity .6s ease}
.lab-memory-stills img[data-current]{opacity:1}
@media(max-width:780px){
 .lab-memory-scene{gap:6px;padding:10px 16px}
 .lab-memory-moment{font-size:10px}
 .lab-memory-copy{font-size:13px}
}



.lab-memory-line::before,.lab-memory-line::after{color:#91a79b}
@media(prefers-reduced-motion:reduce){.lab-memory-stills img{transition:none}}

/* A small first-party poll beside the gallery on desktop, below it on mobile. */
.lab-vote{width:min(100%,320px);margin:0 auto 12px;text-align:center}
.lab-vote h3{margin:0;color:var(--white);font-size:13px;font-weight:450;line-height:1.5}
.lab-vote-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:11px}
.lab-vote-choices[hidden]{display:none}
.lab-vote-choices button{min-height:38px;padding:5px 8px;border:1px solid rgba(255,200,121,.55);border-radius:999px;background:rgba(255,200,121,.09);color:var(--white);font:inherit;font-size:12px;line-height:1.3;white-space:nowrap}
.lab-vote-choices button:hover:not(:disabled){border-color:var(--gold);background:rgba(255,200,121,.18)}
.lab-vote-choices button:disabled{opacity:.55;cursor:default}
.lab-vote-results[hidden]{display:none}
.lab-vote-results{margin-top:12px}
.lab-vote-result{display:grid;grid-template-columns:1fr auto;gap:4px;text-align:left;color:var(--muted);font-size:11px;line-height:1.4}
.lab-vote-result+.lab-vote-result{margin-top:9px}
.lab-vote-result strong{font:inherit;color:var(--white)}
.lab-vote-result i{grid-column:1/-1;display:block;height:3px;border-radius:3px;background:#384038;overflow:hidden}
.lab-vote-result b{display:block;width:0;height:100%;border-radius:inherit;background:var(--gold);transition:width .55s ease}
.lab-vote-result[data-vote-result="not_now"] b{background:#819b90}
.lab-vote-status{margin:7px 0 0;color:var(--muted);font-size:10px;line-height:1.5}
.lab-vote-status:empty{display:none}
@media(max-width:780px){.lab-vote{margin:0 auto 13px}.lab-vote h3{font-size:13px}}
@media(prefers-reduced-motion:reduce){.lab-vote-result b{transition:none}}