:root{--ink:#2c241f;--muted:#70655d;--paper:#faf5e9;--line:#d9cbb7;--red:#a93529;--dark:#272720;--font:"Microsoft YaHei",sans-serif;--serif:"Noto Serif SC","SimSun",serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.7}header{padding:18px 4vw;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);font-size:13px}a{color:inherit}main{max-width:1550px;margin:auto;padding:24px 4vw}h1,h2,p{margin-top:0}h1{font:clamp(30px,3.2vw,54px)/1.2 var(--serif);font-weight:700;margin-bottom:20px}h2{font-size:17px}p{font-size:14px;color:var(--muted)}.eyebrow{color:var(--red);font-size:12px;letter-spacing:.14em}.heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin:15px 0 28px}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px}.theater{min-width:0;align-self:start;background:var(--dark);padding:9px}#stage{width:100%;height:auto;display:block;touch-action:none;cursor:crosshair}.stage-caption{padding:9px 10px 0;display:flex;justify-content:space-between;color:var(--paper);font-size:12px}aside{border-top:3px solid var(--red);padding-top:15px}label{display:block;font-size:13px}select{width:100%;margin:8px 0 10px;padding:9px;border:1px solid var(--line);background:var(--paper);font:inherit;color:var(--ink)}button{font:inherit;font-size:13px;padding:9px 13px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;white-space:nowrap;min-height:40px}button:hover{background:var(--line)}button:disabled{opacity:.45;cursor:default}.primary{background:var(--red);border-color:var(--red);color:var(--paper)}button:focus-visible,canvas:focus-visible,a:focus-visible{outline:3px solid var(--red);outline-offset:3px}#status{margin:12px 0;font-size:12px;min-height:40px}.preview{position:relative;aspect-ratio:4/3;background:var(--dark);overflow:clip}.preview video,.preview canvas{position:absolute;width:100%;height:100%;object-fit:contain}.preview span{position:absolute;bottom:4px;left:8px;color:var(--paper);font-size:10px}dl{margin:10px 0;display:flex;justify-content:space-between}dt{font-size:11px;color:var(--muted)}dd{margin:0;font-size:20px}.inline{display:flex;align-items:center;gap:5px}.small{font-size:11px;margin:8px 0}.tools{margin-top:35px;padding-top:25px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.buttons{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}input[type=range]{width:100%;accent-color:var(--red)}footer{font-size:11px;color:var(--muted);padding:25px 0;border-top:1px solid var(--line);margin-top:30px}@media(max-width:950px){.workbench{grid-template-columns:minmax(0,1fr)}aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}.preview{grid-row:2/7;grid-column:2}aside h2,aside .small{grid-column:1/-1}.tools{grid-template-columns:minmax(0,1fr)}.heading{display:block}header span{display:none}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}@media print{button,video,.preview{display:none}body{background:white}.workbench{display:block}.tools{display:block}}

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.stage-toolbar>div{display:flex;align-items:center;justify-content:flex-end;gap:6px;flex-wrap:wrap}.stage-toolbar>div button{margin-left:0}#stage-camera[aria-pressed=true]{background:#534330;border-color:#bb9558}.theater:fullscreen .scene-play,.theater:fullscreen .music-bar,.theater:fullscreen #scene-panel,.theater.expanded .scene-play,.theater.expanded .music-bar,.theater.expanded #scene-panel{display:none}

.theater:fullscreen>.principle-note,.theater.expanded>.principle-note{display:none}