:root{font-family:Arial,Helvetica,sans-serif;color:#f3f4f1;background:#0b141c;--orange:#f76835;--line:#29343b}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:disabled{cursor:wait}button:focus-visible,a:focus-visible{outline:3px solid #ffb58f;outline-offset:4px}.skip{position:absolute;left:20px;top:-80px;z-index:50;background:#fff;color:#111;padding:15px}.skip:focus{top:12px}.page-header{min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px max(32px,calc((100vw - 1440px)/2));border-bottom:1px solid var(--line);background:#0a1218}.brand{display:flex;align-items:center;gap:15px}.brand img{width:62px;height:62px;object-fit:contain}.brand>span{display:flex;flex-direction:column;gap:4px;text-transform:uppercase}.brand small{font-size:11px;letter-spacing:3px}.brand strong{font-size:20px;letter-spacing:.3px}.back{display:flex;align-items:center;gap:28px;font-size:13px;color:#c6ccd0}.back span{font-size:23px;color:var(--orange)}.shell{max-width:1440px;width:calc(100% - 64px);margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:29px 0 25px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:2px;color:#a6b0b7;margin:0 0 10px}h1{font-size:42px;line-height:1;letter-spacing:-1.4px;margin:0}h1>span{color:var(--orange)}.page-heading>p{font-size:14px;line-height:1.65;color:#aeb8be;margin:0}.machine-panel{position:relative;border:1px solid #2a3943;border-radius:14px;background:#091017;overflow:hidden}.viewer-tag{position:absolute;left:24px;top:23px;z-index:1;display:flex;align-items:center;gap:9px;font-size:9px;letter-spacing:1.8px;color:#bac4c9;pointer-events:none}.viewer-tag>span{width:5px;height:5px;border-radius:50%;background:var(--orange)}#model-canvas{display:block;width:100%;height:clamp(360px,55vh,700px);background:#091017}.playback{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:78px;padding:17px 24px;border-top:1px solid #24323b;background:#0c171f}.playback-info{display:flex;align-items:center;gap:24px;min-width:0}.playback-info strong{font-size:14px;font-weight:600;white-space:nowrap}.playback-info>span{font-size:12px;line-height:1.6;color:#a4b2bb}#pause{min-height:40px;min-width:98px;padding:9px 19px;border:1px solid #4b5c66;border-radius:6px;color:#e0e7eb;background:transparent;font-size:12px}#pause:hover{border-color:var(--orange);color:#fff}#pause[hidden],.render-error[hidden]{display:none}.track{height:3px;background:#25313a}.track>span{display:block;height:100%;width:0;background:var(--orange)}.demo-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.demo-choice{display:flex;align-items:center;gap:16px;min-width:0;min-height:94px;padding:20px 23px;border:1px solid #2d3c46;border-radius:10px;background:#111f29;color:#eff2f3;text-align:left;transition:border-color .2s,background .2s}.demo-choice:hover{border-color:#6d7e88;background:#172733}.demo-choice[aria-pressed=true]{border-color:var(--orange);background:#1e272b}.shape-icon{flex:none;width:38px;height:38px;display:grid;place-items:center;color:#b9c6ce}.shape-icon svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:1.3}.demo-choice[aria-pressed=true] .shape-icon{color:var(--orange)}.choice-copy{display:flex;flex-direction:column;gap:7px;min-width:0}.choice-copy strong{font-size:15px;font-weight:600}.choice-copy small{font-size:11px;color:#a2b1bb;line-height:1.5}.choice-play{margin-left:auto;color:var(--orange);font-size:23px}.demo-note{text-align:right;margin:15px 0 24px;color:#8f9da7;font-size:10px}.page-footer{padding:18px 32px;border-top:1px solid var(--line);font-size:10px;color:#85939c}.render-error{position:absolute;inset:60px 24px auto;background:#261e1c;border:1px solid #b56042;border-radius:8px;padding:20px;color:#ffe0d2;font-size:14px;line-height:1.7;z-index:2}
@media(min-height:1000px){#model-canvas{height:min(61vh,800px)}}
@media(max-width:760px){.page-header{min-height:80px;padding:12px 20px}.brand{gap:10px}.brand img{width:48px;height:48px}.brand small{font-size:8px;letter-spacing:2px}.brand strong{font-size:14px}.back{font-size:11px;gap:8px}.back span{font-size:20px}.shell{width:calc(100% - 32px)}.page-heading{padding:23px 0 18px;gap:12px}.eyebrow{font-size:8px;letter-spacing:1.3px;margin-bottom:9px}h1{font-size:32px}.page-heading>p{font-size:11px;max-width:145px}.viewer-tag{left:16px;top:17px;font-size:8px;letter-spacing:1.3px}#model-canvas{height:clamp(320px,48svh,480px)}.playback{padding:13px 15px;gap:12px;min-height:83px}.playback-info{display:block}.playback-info strong{font-size:13px}.playback-info>span{display:block;font-size:10px;margin-top:6px}#pause{min-width:82px;font-size:11px;padding-inline:12px}.demo-choices{gap:9px;margin-top:13px}.demo-choice{min-height:108px;flex-direction:column;align-items:flex-start;gap:7px;padding:13px 11px}.shape-icon,.shape-icon svg{width:27px;height:27px}.choice-copy{gap:4px}.choice-copy strong{font-size:12px;line-height:1.35}.choice-copy small{font-size:9px;line-height:1.5}.choice-play{display:none}.demo-note{font-size:9px;margin-top:13px;text-align:left}.page-footer{padding:16px;font-size:9px}}
@media(max-width:360px){.page-header{padding-inline:14px}.back{font-size:10px}.brand strong{font-size:12px}.brand small{font-size:7px}.brand img{width:42px;height:42px}.page-heading>p{max-width:120px;font-size:10px}.eyebrow{font-size:7px}.demo-choice{padding-inline:8px}.choice-copy strong{font-size:11px}.choice-copy small{font-size:8px}}
@media(prefers-reduced-motion:reduce){.demo-choice{transition:none}}
/* Inspect the moving head or follow the separated part without editing. */
.scene{position:relative;overflow:hidden}#model-canvas{touch-action:none;cursor:grab}#model-canvas[data-dragging=true]{cursor:grabbing}#model-canvas:focus-visible{outline:2px solid var(--orange);outline-offset:-3px}.view-controls{position:absolute;top:15px;right:16px;z-index:1;display:flex;align-items:center;gap:7px;padding:5px;border:1px solid #33444f;border-radius:8px;background:#0b151ee8;box-shadow:0 3px 14px #0003}.focus-controls,.zoom-controls{display:flex;gap:3px}.view-controls button{border:1px solid transparent;border-radius:5px;background:transparent;min-height:34px;padding:6px 12px;color:#b9c5ce;font-size:11px}.view-controls button:hover{color:#fff;background:#25343f}.view-controls [aria-pressed=true]{color:#ffe1cf;border-color:#a66040;background:#3e2a22}.zoom-controls{padding-left:6px;border-left:1px solid #34424c}.zoom-controls button{width:36px;padding-inline:0;font-size:23px}.head-readout,.viewer-help{position:absolute;bottom:14px;font-size:10px;color:#95a8b4;pointer-events:none}.head-readout{right:20px;padding:5px 8px;border:1px solid #2b3d48;border-radius:4px;background:#101b23cc;color:#b3c3cc}.viewer-help{left:20px;line-height:1.6;background:#0b141c99;padding:3px 6px;border-radius:4px}
@media(max-width:760px){.view-controls{top:auto;left:10px;right:10px;bottom:10px;justify-content:space-between;gap:3px;padding:4px}.view-controls button{min-height:38px;padding:5px 8px;font-size:10px}.zoom-controls{padding-left:4px}.zoom-controls button{width:32px;font-size:22px}.head-readout{bottom:auto;top:43px;right:auto;left:16px;font-size:9px;padding:4px 6px}.viewer-help{left:14px;right:14px;bottom:64px;font-size:8px;text-align:center;padding:2px 4px}}
.timeline{display:flex;align-items:center;gap:16px;padding:10px 24px 13px;background:#0c171f;border-top:1px solid #1e2c35}.timeline input{width:100%;accent-color:var(--orange);cursor:pointer;min-height:24px;margin:0}.timeline output{white-space:nowrap;color:#9eafb9;font-size:11px;font-variant-numeric:tabular-nums}.timeline input:focus-visible{outline:2px solid var(--orange);outline-offset:3px}.playback-info{flex-wrap:wrap;gap:7px 24px}.playback-info>span{max-width:440px}@media(max-width:760px){.timeline{padding:8px 14px;gap:10px}.timeline output{font-size:10px}.page-header .back{white-space:nowrap;font-size:10px}.playback-info strong{white-space:normal}}

.playback-controls{display:flex;align-items:center;gap:16px;flex-shrink:0}.speed-label{display:flex;align-items:center;gap:9px;font-size:11px;color:#a4b2bb}.speed-label select{min-height:40px;padding:8px 26px 8px 10px;border:1px solid #4b5c66;border-radius:6px;background:#111f29;color:#edf2f4;font:inherit;cursor:pointer}.speed-label select:focus-visible{outline:2px solid var(--orange);outline-offset:3px}@media(max-width:760px){.playback{flex-wrap:wrap}.playback-info{width:100%}.playback-controls{width:100%;justify-content:space-between;gap:10px}.speed-label{gap:9px}.playback-controls #pause{min-width:92px}}