:root{color-scheme:dark;--bg:#101213;--text:#edece8;--muted:#a6aaa9;--quiet:#8a9291;--line:#343938;--accent:#d7ad72;--ease:cubic-bezier(.2,.75,.25,1);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{border:0;background:none;color:inherit;cursor:pointer;touch-action:manipulation;transition:color .2s,background .2s,border-color .2s,transform .2s}button:active{transform:translateY(1px)}button:disabled{cursor:default;transform:none}a{color:inherit;text-underline-offset:5px}button:focus-visible,input:focus-visible,a:focus-visible,#stage:focus-visible{outline:2px solid var(--accent);outline-offset:4px}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.svg-library{position:absolute;width:0;height:0;overflow:hidden}.instrument{height:100dvh;min-height:650px;max-width:1920px;margin:auto;display:flex;flex-direction:column;padding:0 36px;gap:0;overflow:hidden}.masthead{height:84px;flex:none;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-size:14px;letter-spacing:.04em;white-space:nowrap}.brand>svg{width:27px;height:27px;color:var(--accent)}.brand>i{height:17px;width:1px;background:var(--line);margin:0 8px}.brand-sub{color:var(--muted);font-size:12px}.header-actions{display:flex;align-items:center;gap:7px}.classic-link{font-size:11px;color:var(--muted);text-decoration:none;padding:12px;margin-right:16px}.classic-link:hover{color:var(--text)}.icon-button{height:40px;width:40px;display:grid;place-items:center;border-radius:4px;color:#afb5b3}.icon-button:hover{background:#ffffff09;color:#fff}.icon-button[aria-pressed=true]{color:var(--accent);background:#d7ad7210}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:30px;flex:1;min-height:0}#stage{position:relative;min-height:0;overflow:hidden;cursor:grab;touch-action:none;isolation:isolate;background:radial-gradient(ellipse at 62% 48%,#22282a50,transparent 65%)}#stage:active{cursor:grabbing}#view{width:100%;height:100%;display:block;touch-action:none}.stage-top{position:absolute;top:24px;left:0;right:0;display:flex;justify-content:space-between;align-items:center;z-index:2;pointer-events:none}.status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px}.status>i{width:5px;height:5px;border-radius:50%;background:#b6c0b8}.status>i.paused{background:var(--accent)}.view-tools{display:flex;gap:2px;pointer-events:auto;align-items:center}.view-tools .icon-button{width:36px;height:36px}.view-tools svg{width:17px;height:17px}.view-button{font-size:11px;padding:10px 12px;color:var(--muted);border-radius:4px;min-height:36px}.view-button:hover{background:#ffffff08;color:var(--text)}.view-button[aria-pressed=true]{color:var(--accent)}.view-button:disabled{color:var(--quiet)}.editorial{position:absolute;left:0;top:108px;z-index:1;pointer-events:none}.editorial>p{font-size:12px;color:var(--accent);margin:0 0 23px;letter-spacing:.1em}.editorial h1{font-size:clamp(47px,5.3vw,86px);font-weight:480;line-height:1.13;letter-spacing:-.055em;margin:0 0 25px}.editorial-copy{font-size:12px;color:var(--muted);line-height:1.9;max-width:205px}.principle{margin-top:36px;display:flex;gap:12px;align-items:baseline;color:var(--quiet);font-size:10px}.principle strong{font:32px ui-monospace,SFMono-Regular,monospace;font-weight:350;color:#c4c9c5}.principle i{font-size:16px;font-style:normal;color:#747d7a}.figure-id{position:absolute;left:0;right:0;bottom:108px;pointer-events:none;display:flex;justify-content:flex-end;font-size:10px;color:var(--quiet)}.figure-id>span:first-child{display:none}.scene-caption{position:absolute;left:0;right:0;bottom:27px;display:flex;align-items:flex-start;gap:15px;pointer-events:none;z-index:1}.scene-caption>span{font:11px ui-monospace,SFMono-Regular,monospace;color:var(--accent);padding-top:6px;border-top:1px solid var(--accent);min-width:24px}.scene-caption h2{font-size:18px;font-weight:450;letter-spacing:.015em;margin:0 0 8px;line-height:1.4}.scene-caption p{font-size:12px;line-height:1.7;color:var(--muted);margin:0;max-width:550px}.annotation{position:absolute;left:0;top:0;z-index:1;pointer-events:none;display:flex;align-items:center;gap:0;transition:opacity .2s;color:var(--accent)}.annotation>i{height:7px;width:7px;border:1px solid var(--accent);border-radius:50%;background:#101213}.annotation:after{content:"";position:absolute;width:24px;height:1px;background:var(--accent);left:7px}.annotation>div{margin-left:24px;display:flex;flex-direction:column;gap:5px;padding:8px 10px;background:#101213e8;border-left:1px solid #d7ad7255;min-width:85px}.annotation b{font-size:11px;font-weight:450}.annotation span{font-size:9px;color:#b5bcb8}.controls{padding:28px 0 20px 28px;border-left:1px solid var(--line);min-height:0;overflow:auto;scrollbar-width:thin;scrollbar-color:#58615c transparent;display:flex;flex-direction:column}.panel-heading{display:flex;justify-content:space-between;align-items:center;color:var(--muted)}.panel-heading h2{font-size:11px;font-weight:450;margin:0}.panel-heading>span{font:10px ui-monospace,SFMono-Regular,monospace;color:var(--accent)}.part-explanation{padding:22px 0 24px;min-height:143px}.part-explanation>div{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.part-explanation i{display:none}.part-explanation h3{font-size:30px;font-weight:430;letter-spacing:-.03em;margin:0;line-height:1.3}.part-explanation>div>span{font-size:10px;color:var(--accent)}.part-explanation p{font-size:12px;line-height:1.85;color:var(--muted);margin:13px 0 0}.parts{margin:0 0 24px}.parts-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px}.parts-heading>span{font-size:10px;color:var(--quiet)}.focus-toggle{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:10px;min-height:32px;padding:5px 0 5px 8px}.focus-toggle svg{width:15px;height:15px}.focus-toggle[aria-pressed=true]{color:var(--accent)}.part-buttons{display:grid;grid-template-columns:1fr 1fr;gap:6px}.part-buttons button{display:flex;align-items:center;gap:8px;min-height:45px;padding:9px 10px;border:1px solid #3a4140;border-radius:4px;text-align:left;color:var(--muted);font-size:11px}.part-buttons svg{width:18px;height:18px}.part-buttons small{display:none}.part-buttons button:hover{color:#eee;border-color:#77817a}.part-buttons button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:#d7ad7208}.metrics{display:grid;grid-template-columns:1fr 26px 1fr;gap:13px 0;border-top:1px solid var(--line);padding:22px 0}.metric>span{font-size:10px;color:var(--muted)}.metric>div{display:flex;gap:6px;align-items:baseline;margin-top:7px}.metric b{font:32px ui-monospace,SFMono-Regular,monospace;font-weight:350;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.06em}.metric small{font-size:10px;color:var(--quiet)}.metric-arrow{padding-top:26px;color:var(--quiet)}.ratio-meta{grid-column:1/-1;display:flex;gap:8px;align-items:center;font-size:10px;color:var(--muted)}.ratio-meta strong{font:12px ui-monospace,SFMono-Regular,monospace;color:var(--text)}.ratio-meta strong span{padding:0 3px}.ratio-meta>small{margin-left:auto;font-size:10px;color:var(--quiet)}.parameter{padding:0 0 20px}.parameter-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.parameter-label label{font-size:12px;color:#c8ceca}.value-field{display:flex;align-items:center;gap:5px;min-height:30px;border-bottom:1px solid #657066;padding:0 0 2px 9px}.value-field:focus-within{border-color:var(--accent)}.value-field input{width:38px;text-align:right;background:none;border:0;color:var(--text);font:13px ui-monospace,SFMono-Regular,monospace;appearance:textfield;-moz-appearance:textfield;padding:0}.value-field input:focus{outline:none}.value-field input::-webkit-inner-spin-button,.value-field input::-webkit-outer-spin-button{-webkit-appearance:none}.value-field span{font-size:10px;color:var(--muted)}input[type=range]{appearance:none;-webkit-appearance:none;display:block;height:24px;width:100%;margin:0;background:none;cursor:pointer;--fill:0%}input[type=range]::-webkit-slider-runnable-track{height:2px;background:linear-gradient(to right,var(--accent) 0 var(--fill),#55615a var(--fill) 100%)}input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:10px;height:10px;border-radius:50%;background:#d8ddd7;border:0;margin-top:-4px}input[type=range]::-moz-range-track{height:2px;background:#55615a}input[type=range]::-moz-range-progress{height:2px;background:var(--accent)}input[type=range]::-moz-range-thumb{width:10px;height:10px;border:0;background:#d8ddd7;border-radius:50%}.range-endpoints{display:flex;justify-content:space-between;font-size:9px;color:var(--quiet);line-height:1.5}.panel-foot{display:flex;justify-content:space-between;gap:8px;font-size:9px;line-height:1.5;color:var(--quiet);margin-top:auto;padding-top:5px}.panel-foot>span:last-child{display:none}.transport{height:100px;flex:none;display:flex;gap:26px;align-items:center;border-top:1px solid var(--line)}.play-button{display:flex;align-items:center;gap:13px;min-width:158px;text-align:left;padding:8px 0;white-space:nowrap}.play-glyph{height:47px;width:47px;border:1px solid #88928a;border-radius:50%;display:grid;place-items:center;transition:background .2s,border-color .2s}.play-glyph svg{width:22px;height:22px}.play-button:hover .play-glyph{background:#d7ad7215;border-color:var(--accent)}.is-playing .play-glyph{color:var(--accent);border-color:var(--accent)}.tour-label{font-size:13px}.tour-label>span{font-size:10px;color:var(--muted);display:block;margin-top:6px}.timeline{position:relative;flex:1;min-width:100px;display:flex;gap:20px;align-items:center;margin-top:-20px}.timeline-meter{position:relative;flex:1;min-width:30px;height:30px;display:flex;align-items:center}.timeline-track{position:absolute;left:6px;right:6px;height:3px;border-radius:3px;background:#455049;pointer-events:none}.timeline-track>span{position:absolute;inset:0;background:var(--accent);border-radius:3px;transform:scaleX(0);transform-origin:left}.timeline-track>i{position:absolute;left:0;top:50%;width:11px;height:11px;background:var(--text);border:2px solid var(--accent);border-radius:50%;transform:translate(-50%,-50%)}.timeline-meter input{position:absolute;inset:0;opacity:0;height:100%;width:100%;margin:0}.timeline-meter:focus-within{outline:1px solid var(--accent);outline-offset:3px;border-radius:4px}#time-readout{white-space:nowrap;font:11px ui-monospace,SFMono-Regular,monospace;color:var(--text);min-width:80px}#elapsed{font-weight:400}#time-readout i{font-style:normal;color:var(--muted)}.chapters{position:absolute;left:6px;right:100px;top:31px;display:flex;justify-content:space-between}.chapters button{font-size:10px;color:var(--muted);padding:4px 0 6px;min-width:30px;position:relative}.chapters button:before{content:"";height:3px;width:3px;background:#7d8980;border-radius:50%;position:absolute;top:-9px;left:50%;transform:translateX(-50%)}.chapters button[aria-current=true]{color:var(--accent)}.chapters button[aria-current=true]:before{background:var(--accent)}.mode-switch{display:flex;gap:6px;flex:none;margin-left:3px}.mode-switch button{display:flex;align-items:center;justify-content:center;gap:7px;min-width:91px;min-height:41px;border:1px solid #454f47;color:var(--muted);border-radius:4px;font-size:12px;padding:0 12px}.mode-switch svg{height:17px;width:17px}.mode-switch button[aria-pressed=true]{color:var(--text);border-color:#a3afa3;background:#ffffff04}#loading{position:absolute;inset:0;z-index:3;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px}#loading b{font-size:14px;font-weight:400}#loading small{font-size:11px;color:var(--muted)}.loading-gear{height:150px;width:150px;border:18px solid #242b28;border-radius:50%;box-shadow:inset 0 0 0 1px #3c473f,0 0 0 1px #3c473f;position:relative}.loading-gear:after{content:"";position:absolute;inset:38px;border:1px solid #596559;border-radius:50%}#loading button{border:1px solid var(--accent);padding:9px 20px;border-radius:4px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}dialog{background:#171c19;color:var(--text);border:1px solid #505b51;border-radius:12px;width:min(560px,calc(100vw - 28px));max-height:calc(100dvh - 40px);padding:0;box-shadow:0 25px 100px #0008}dialog::backdrop{background:#060907ce;backdrop-filter:blur(8px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:24px 26px;border-bottom:1px solid var(--line)}.dialog-header span{font:9px ui-monospace,SFMono-Regular,monospace;color:var(--accent);letter-spacing:.1em}.dialog-header h2{font-size:23px;font-weight:450;margin:9px 0 0}.dialog-body{padding:8px 26px 24px;font-size:12px;line-height:1.9;color:#b3bdb4}.dialog-body h3{font-size:14px;color:var(--text);font-weight:450;margin:20px 0 8px}.dialog-body p{margin:9px 0}.dialog-body ul{padding-left:18px}.dialog-body a{color:var(--accent)}.formula{font:24px ui-monospace,SFMono-Regular,monospace;padding:20px 0;color:var(--text)}.formula span{padding:0 20px;color:var(--muted)}.sources{font-size:10px}.instrument:fullscreen{background:var(--bg);max-width:none}
@media(min-width:1600px){.instrument{padding:0 52px}.workspace{grid-template-columns:minmax(0,1fr) 320px;gap:40px}.controls{padding-left:36px}.editorial{top:120px}.editorial h1{font-size:96px}.part-explanation{padding-block:30px;min-height:165px}.parts{margin-bottom:30px}.metrics{padding-block:26px}.parameter{padding-bottom:28px}}
@media(min-width:901px) and (max-height:800px){.instrument{min-height:600px;padding-inline:28px}.masthead{height:66px}.transport{height:87px}.controls{padding-top:20px;padding-bottom:12px}.part-explanation{padding:16px 0;min-height:119px}.part-explanation h3{font-size:27px}.part-explanation p{font-size:11px;margin-top:9px}.parts{margin-bottom:16px}.metrics{padding:16px 0;gap:10px 0}.parameter{padding-bottom:14px}.editorial{top:94px}.editorial h1{font-size:62px;margin-bottom:20px}.principle{margin-top:25px}.scene-caption{bottom:21px}.scene-caption h2{font-size:16px}.scene-caption p{font-size:11px}.figure-id{bottom:96px}}
@media(min-width:901px) and (max-width:1150px){.instrument{padding-inline:24px}.workspace{grid-template-columns:minmax(0,1fr) 250px;gap:22px}.controls{padding-left:21px}.editorial h1{font-size:55px}.editorial-copy{max-width:160px;font-size:11px}.principle{gap:9px}.classic-link{margin-right:5px}.part-explanation h3{font-size:27px}.metric b{font-size:28px}.play-button{min-width:145px}.transport{gap:18px}.mode-switch button{min-width:75px}.scene-caption p{max-width:450px}.chapters{right:94px}}
@media(max-width:900px){.instrument{padding:0 16px max(8px,env(safe-area-inset-bottom));height:100dvh;min-height:620px}.masthead{height:59px}.brand{gap:7px;font-size:12px}.brand>svg{width:23px;height:23px}.brand-sub{font-size:11px}.brand>i{margin-inline:3px;height:13px}.header-actions{gap:0}.header-actions .icon-button{width:32px;height:36px}.header-actions svg{width:17px;height:17px}.classic-link{font-size:10px;padding:9px;margin-right:3px}.header-actions #fullscreen{display:none}.workspace{display:flex;flex-direction:column;gap:0}.controls{flex:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;padding:13px 0 12px;border-left:0;border-top:1px solid var(--line);overflow:visible}.panel-heading,.panel-foot{display:none}.part-explanation{grid-column:1/-1;padding:0;min-height:0;display:flex;align-items:baseline;gap:14px}.part-explanation>div{display:none}.part-explanation p{margin:0;font-size:11px;line-height:1.6;min-height:18px}.parts{grid-column:1/-1;margin:0;order:3}.parts-heading{margin-bottom:4px}.parts-heading>span{font-size:10px}.focus-toggle{min-height:27px;font-size:10px;padding-block:3px}.part-buttons{grid-template-columns:repeat(4,1fr);gap:5px}.part-buttons button{min-height:39px;padding:7px 3px;justify-content:center;gap:5px;font-size:11px}.part-buttons svg{width:15px;height:15px}.metrics{grid-column:1/-1;padding:0 0 8px;grid-template-columns:1fr 20px 1fr auto;gap:4px;border-top:0;border-bottom:1px solid var(--line);order:0}.metric{display:flex;align-items:center;gap:8px}.metric>span{font-size:10px}.metric>div{margin:0;gap:4px}.metric b{font-size:23px}.metric small{font-size:9px}.metric-arrow{padding:0;font-size:15px}.ratio-meta{grid-column:4;white-space:nowrap;display:flex;gap:7px;font-size:9px;padding-left:8px;border-left:1px solid var(--line)}.ratio-meta strong{font-size:12px}.ratio-meta>small{display:none}.parameter{padding:0;order:1}.parameter-label{margin-bottom:2px}.parameter-label label{font-size:11px}.value-field{min-height:26px;padding:0 0 1px 5px}.value-field input{width:29px;font-size:12px}.value-field span{font-size:9px}.range-endpoints{font-size:8px}.part-explanation{order:4}.parts-heading{font-size:10px}#stage{flex:1;min-height:240px}.stage-top{top:9px;left:0;right:0}.status{font-size:9px;gap:5px}.view-button{font-size:9px;padding:8px 7px;min-height:32px}.view-tools .icon-button{width:28px;height:32px}.editorial{top:52px;left:0;right:0;display:flex;flex-direction:column;align-items:flex-start}.editorial>p{display:none}.editorial h1{font-size:33px;line-height:1.2;letter-spacing:-.05em;margin:0}.editorial h1 br{display:none}.editorial-copy{font-size:10px;line-height:1.7;margin-top:7px;max-width:none}.principle{display:none}.figure-id{display:none}.scene-caption{left:0;right:0;bottom:10px;gap:9px;align-items:center;justify-content:center}.scene-caption>span{font-size:9px;min-width:18px;padding-top:3px}.scene-caption h2{font-size:12px;line-height:1.5;margin:0}.scene-caption p{display:none}.annotation>div{padding:5px 7px;min-width:70px}.annotation b{font-size:10px}.annotation span{font-size:8px}.annotation{opacity:.95}.annotation>i{width:5px;height:5px}.annotation:after{width:14px;left:5px}.annotation>div{margin-left:14px}.transport{height:63px;gap:13px}.play-button{min-width:105px;gap:8px;padding:4px 0}.play-glyph{height:35px;width:35px}.play-glyph svg{height:18px;width:18px}.tour-label{font-size:10px}.tour-label>span{font-size:8px;margin-top:4px}.timeline{margin:0;gap:0;flex-direction:column;min-width:35px;align-items:stretch}.timeline-meter{height:24px;flex:none}#time-readout{min-width:0;text-align:center;font-size:8px;line-height:12px}.timeline-track>i{width:9px;height:9px;border-width:1px}.chapters{display:none}.mode-switch{gap:4px;margin-left:0}.mode-switch button{min-width:52px;padding:0 7px;gap:4px;min-height:35px;font-size:10px}.mode-switch svg{width:13px;height:13px}}
@media(max-width:900px) and (max-height:740px){.instrument{padding-inline:12px;min-height:600px}.masthead{height:52px}.controls{gap:6px 18px;padding-block:10px}.metrics{padding-bottom:7px}.part-buttons button{min-height:36px}.parts-heading{margin-bottom:2px}.part-explanation p{font-size:10px}.range-endpoints{display:none}.transport{height:58px}#stage{min-height:220px}.editorial{top:42px}.editorial h1{font-size:29px}.editorial-copy{display:none}.scene-caption{bottom:9px}.annotation{display:none}}
@media(max-width:360px){.instrument{padding-inline:10px}.brand-sub,.brand>i{display:none}.classic-link{margin-right:0}.part-buttons button{font-size:10px;gap:3px}.transport{gap:8px}.play-button{min-width:96px}.mode-switch button{min-width:46px;padding-inline:5px}.mode-switch svg{display:none}}
@media(prefers-reduced-motion:no-preference){.editorial{animation:reveal .8s var(--ease) both;animation-delay:.1s}.controls{animation:reveal .7s var(--ease) both;animation-delay:.23s}.transport{animation:reveal .65s var(--ease) both;animation-delay:.35s}@keyframes reveal{from{opacity:0;transform:translateY(13px)}to{opacity:1;transform:translateY(0)}}dialog[open]{animation:reveal .25s var(--ease)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
.principle{align-items:center;gap:17px;margin-top:34px}.phase-dial{width:60px;text-align:center}.phase-dial svg{width:54px;height:54px;overflow:visible;stroke-width:1;stroke-linecap:round}.phase-track{stroke:#4d5551;fill:none}.phase-arc{stroke:var(--accent);fill:none;stroke-width:1.4;stroke-dasharray:1;stroke-dashoffset:1;transform:rotate(-90deg);transform-origin:center}.phase-dial svg text{fill:#d7ded8;stroke:none;font:23px ui-monospace,SFMono-Regular,monospace;text-anchor:middle}.phase-dial>span{display:block;font-size:9px;color:var(--muted);margin-top:10px;white-space:nowrap}.principle>i{margin-top:-20px;font-size:14px}.annotation{display:block;width:1px;height:1px}.annotation>i{position:absolute;left:0;top:0;transform:translate(-50%,-50%);background:#141718}.annotation:after{display:none}.annotation>svg{position:absolute;left:-140px;top:0;width:140px;height:40px;stroke:var(--accent);stroke-width:.7;opacity:.7}.annotation>div{position:absolute;left:-140px;top:39px;margin:0;padding:0;background:transparent;border:0;text-shadow:0 1px 5px #101213;min-width:0;white-space:nowrap}.annotation span{color:#b9c0bb}
@media(max-width:900px){.principle{display:none}.annotation{display:none}}
@media(min-width:901px) and (max-height:800px){.part-explanation{min-height:104px;padding:12px 0}.parts{margin-bottom:12px}.metrics{padding-block:14px}.parameter{padding-bottom:12px}}
@media(min-width:901px) and (max-height:740px){.part-explanation{min-height:97px}.part-explanation p{line-height:1.65}.range-endpoints{display:none}.parts{margin-bottom:10px}.panel-foot{font-size:8px}.metric b{font-size:28px}}
.mode-switch button{border-color:#626c65}.part-buttons button{border-color:#57605b}
.chapters{display:block}.chapters button{position:absolute;top:0;transform:translateX(-50%)}.chapters button:active{transform:translate(-50%,1px)}
@media(max-width:900px){.chapters{display:none}}

/* Playback takes the stage; configuration remains in its original layout. */
.editorial,.controls,.stage-top,.figure-id,.scene-caption,.transport,.header-actions{transition:opacity .45s var(--ease),transform .65s var(--ease);animation-fill-mode:backwards!important}
.instrument.is-presenting .editorial{opacity:0;transform:translate3d(-45px,0,0);pointer-events:none}
.instrument.is-presenting .controls{opacity:0;transform:translate3d(45px,0,0);pointer-events:none}
.instrument.is-presenting .transport{opacity:0;transform:translate3d(0,32px,0);pointer-events:none}
.instrument.is-presenting .stage-top,.instrument.is-presenting .figure-id,.instrument.is-presenting .scene-caption,.instrument.is-presenting .header-actions{opacity:0;transform:translateY(-12px);pointer-events:none}
.instrument.is-presenting .annotation{opacity:0!important}
.instrument.is-presenting #stage{position:absolute;inset:84px 36px 28px;z-index:3;background:radial-gradient(ellipse at center,#22282a50,transparent 65%)}
#presentation-controls{position:absolute;z-index:4;bottom:4px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:17px;white-space:nowrap;padding:9px 16px;background:#101213d9;border:1px solid #343938;border-radius:4px;font-size:11px;color:var(--muted)}
#presentation-controls[hidden]{display:none}#presentation-controls button{min-height:30px;color:var(--text)}.present-track{width:100px;height:1px;background:#4d5551;overflow:hidden}.present-track i{display:block;width:100%;height:100%;background:var(--accent);transform-origin:left}
@media(max-width:900px){.instrument.is-presenting #stage{inset:59px 16px 16px}#presentation-controls{gap:10px;font-size:10px;padding:7px 12px}.present-track{width:60px}.instrument.is-presenting .controls{transform:translateY(35px)}}
@media(max-width:900px) and (max-height:740px){.instrument.is-presenting #stage{inset:52px 12px 12px}}