@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:400;font-display:swap;src:url(./noto-sans-sc-0-DGmV6Quc.ttf)format("truetype")}@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:500;font-display:swap;src:url(./noto-sans-sc-1-Dp39tKBn.ttf)format("truetype")}@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:600;font-display:swap;src:url(./noto-sans-sc-2-Cw9Yu7D3.ttf)format("truetype")}@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:700;font-display:swap;src:url(./noto-sans-sc-3-1-KdkQc1.ttf)format("truetype")}:root{font-synthesis:none;--ink:#26332e;--muted:#69776b;--line:#dfe5dc;--accent:#167a90;--green:#54805a;--lime:#d8ecb5;--panel:#fcfcf9;--stage:#eef0ec;--radius:8px;color:var(--ink);background:var(--stage);font-family:Noto Sans SC,Microsoft 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30px;display:flex;position:relative}.brand{align-items:center;gap:12px;text-decoration:none;display:flex}.brand-mark{width:42px;height:42px;color:var(--lime);background:#293b31;border-radius:50%;place-items:center;display:grid}.brand strong{letter-spacing:.06em;font-size:18px;font-weight:650;line-height:1.3;display:block}.brand-dot{color:var(--green)}.brand small{letter-spacing:.22em;color:var(--muted);margin-top:4px;font-size:8px;display:block}.header-center{letter-spacing:.06em;color:var(--muted);align-items:center;gap:11px;font-size:12px;display:flex}.status-dot{background:var(--green);border-radius:50%;flex-shrink:0;width:7px;height:7px;box-shadow:0 0 0 4px #54805a15}.status-dot.adjusting{background:var(--accent);box-shadow:0 0 0 4px #167a9015}.header-divider{background:var(--line);width:1px;height:12px;margin:0 7px}.header-actions{gap:24px;display:flex}.text-button{min-height:44px;color:var(--muted);align-items:center;gap:7px;font-size:12px;display:flex}.text-button:hover{color:var(--accent)}.workspace{grid-template-columns:minmax(0,1fr) 400px;min-height:calc(100svh - 78px);display:grid}.stage-area{background:var(--stage);height:calc(100svh - 78px);min-height:580px;position:sticky;top:0;overflow:hidden}.scene-host{touch-action:none;cursor:grab;position:absolute;top:0;bottom:0;left:0;right:0}.scene-host canvas{outline:none;width:100%;height:100%;display:block}.scene-host.dragging,.scene-host.dragging *{cursor:grabbing!important}.stage-title{pointer-events:none;position:absolute;top:28px;left:32px}.eyebrow{letter-spacing:.15em;color:var(--muted);font-size:9px;font-weight:550}.stage-title h1{letter-spacing:-.04em;margin-top:7px;font-size:27px;font-weight:550}.stage-title p{letter-spacing:.025em;color:var(--muted);margin-top:7px;font-size:10px}.configuration-link{pointer-events:auto;min-height:36px;color:var(--muted);align-items:center;gap:7px;margin-top:6px;font-size:11px;display:flex}.stage-status{border:1px solid var(--line);background:#fcfcf9e6;border-radius:30px;align-items:center;gap:10px;padding:10px 13px;font-size:12px;display:flex;position:absolute;top:30px;right:26px}.is-balanced .stage-status{color:var(--green)}.scene-bottom{white-space:nowrap;flex-direction:column;align-items:center;display:flex;position:absolute;bottom:26px;left:50%;transform:translate(-50%)}.scene-instruction{color:#40584b;margin-bottom:14px;font-size:13px;font-weight:500}.view-toolbar{border:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fcfcf9ed;border-radius:30px;align-items:center;padding:4px;display:flex;box-shadow:0 4px 20px #26332e06}.view-toolbar button{min-height:38px;color:var(--muted);border-radius:25px;padding:0 15px;font-size:12px}.view-toolbar button.selected{color:#344c2f;background:#e7eddf}.gesture-hint{color:var(--muted);margin-top:12px;font-size:11px}.model-hotspot{z-index:2;background:var(--accent);color:#fff;white-space:nowrap;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;border:2px solid #fff;border-radius:24px;min-height:44px;padding:10px 16px;font-size:13px;position:absolute;transform:translate(-50%,-100%);box-shadow:0 4px 20px #167a9026}.model-hotspot:after{content:"";background:var(--accent);border:2px solid #fff;border-radius:50%;width:10px;height:10px;position:absolute;bottom:-10px;left:calc(50% - 5px);box-shadow:0 0 0 4px #167a9026}.model-hotspot.balanced,.model-hotspot.balanced:after{background:var(--green)}.model-hotspot[hidden]{display:none}.control-panel{background:var(--panel);border-left:1px solid var(--line);flex-direction:column;display:flex;position:relative}.panel-heading{justify-content:space-between;align-items:center;padding:25px 26px 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var(--line);background:var(--panel);color:var(--ink);border-radius:14px;width:min(520px,100vw - 24px);max-height:calc(100svh - 36px);padding:24px 28px;box-shadow:0 25px 100px #26332e26}.lab-dialog::backdrop{-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);background:#26332e66}.dialog-heading{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.icon-button{border-radius:var(--radius);min-width:44px;min-height:44px;color:var(--muted);place-items:center;display:grid}.icon-button:hover{background:#edf3e7}.lab-dialog h2{font-size:24px;line-height:1.6}.dialog-lead{color:var(--muted);margin-top:12px;font-size:12px;line-height:1.9}.guide-list{counter-reset:guide;margin:25px 0;padding:0;list-style:none}.guide-list li{counter-increment:guide;margin-bottom:23px;padding-left:32px;position:relative}.guide-list li:before{content:counter(guide,decimal-leading-zero);color:var(--green);font-size:12px;position:absolute;top:2px;left:0}.guide-list 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0;font-size:12px;text-decoration:none}html,body,#root{height:100%;overflow:hidden}body{overscroll-behavior:none}.app-shell{height:100vh;height:100dvh;min-height:0;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);flex-direction:column;display:flex;overflow:hidden}.topbar{flex:0 0 78px}.workspace{flex:1;min-height:0;overflow:hidden}.stage-area{height:100%;min-height:0;position:relative}.control-panel{min-height:0;overflow:hidden}.panel-heading,.step-tabs,.practice-actions,.panel-footer{flex-shrink:0}.practice-content{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scrollbar-width:thin;min-height:0;overflow-y:auto}.practice-actions{background:var(--panel);border-top:1px solid var(--line);padding:14px 26px 8px}.practice-actions>.primary-button{width:100%}.primary-button{min-height:48px}.next-hint{min-height:18px;margin-top:7px;font-size:11px;line-height:1.6}.inspection-actions{grid-template-columns:1fr 1.35fr;gap:10px;display:grid}.outlined-button{border:1px solid var(--line);border-radius:var(--radius);min-height:48px;font-size:13px}.panel-footer{padding:3px 26px;font-size:10px}.panel-footer button{min-height:44px}.axis-status{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:16px 0;display:grid}.axis-status>span{color:var(--muted);background:#f0f2ec;border-radius:6px;flex-direction:column;gap:5px;padding:10px 12px;font-size:11px;display:flex}.axis-status b{font-size:12px;font-weight:500}.axis-status .active{color:#276477;background:#e6f0f1}.unlock-explanation{background:#edf3f3;border:1px solid #d3e5e6;border-radius:8px;gap:14px;margin-top:20px;padding:20px 16px;display:flex}.lock-diagram{color:var(--accent);font-size:28px}.unlock-explanation strong{font-size:14px;font-weight:550}.unlock-explanation p{color:#58747b;margin-top:9px;font-size:12px;line-height:1.9}.model-hotspot.lock-hotspot{cursor:pointer}.model-hotspot:disabled{opacity:1;cursor:default}.position-control.inactive{opacity:.7}.motor-lead{color:var(--muted);margin-top:14px;font-size:13px;line-height:1.9}.motor-lead strong{color:var(--ink);padding:0 3px}.motor-steps{margin:22px 0;padding-left:22px}.motor-steps li{color:var(--green);padding:0 0 18px 5px;font-size:13px}.motor-steps b{color:var(--ink);font-weight:550;display:block}.motor-steps span{color:var(--muted);margin-top:6px;font-size:12px;line-height:1.7;display:block}.motor-note{color:var(--muted);border-top:1px solid var(--line);padding-top:14px;font-size:11px;line-height:1.9}.embedded .topbar{display:none}.embedded .workspace{height:100%}@media (min-width:1500px){.workspace{grid-template-columns:minmax(0,1fr) 430px}.practice-content{padding:30px}.practice-content h2{font-size:25px}}@media (max-width:1050px) and (min-width:761px){.workspace{grid-template-columns:minmax(0,1fr) 360px}.topbar{padding:0 20px}.header-center{display:none}.stage-title{top:22px;left:22px}.stage-title h1{font-size:22px}.stage-status{top:140px;right:15px}.practice-content{padding:22px}.practice-content h2{font-size:21px}.panel-heading{padding:18px 22px}.step-tabs{margin:0 22px}.scene-bottom{bottom:22px}.gesture-hint{font-size:10px}}@media (max-width:760px){.topbar{flex-basis:56px;gap:10px;height:56px;padding:0 14px}.brand{gap:8px}.brand-mark{width:30px;height:30px}.brand-mark svg{width:22px;height:22px}.brand strong{font-size:14px}.brand small{font-size:7px}.header-center{display:none}.header-actions{gap:12px}.text-button{gap:5px;font-size:11px}.text-button svg{width:16px;height:16px}.workspace{grid-template-rows:clamp(210px,35dvh,300px) minmax(0,1fr);grid-template-columns:minmax(0,1fr);display:grid}.stage-area{border-bottom:1px solid var(--line)}.stage-title{top:10px;left:14px}.stage-title .eyebrow,.stage-title 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