:root{color:#1f2933;background:#f4f6f8;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-synthesis:none}*{box-sizing:border-box}html,body,#app,#stage{width:100%;height:100%;margin:0;overflow:hidden}button,input{font:inherit}button{color:inherit}#stage{position:relative;background:#f4f6f8;touch-action:none;user-select:none}#scene,#scene canvas{position:absolute;inset:0;display:block;width:100%;height:100%}#scene canvas{cursor:crosshair;outline:none}#scene canvas[data-cursor=grab]{cursor:grab}#scene canvas[data-cursor=grabbing]{cursor:grabbing}#scene canvas[data-cursor=orbit]{cursor:grab}#scene canvas[data-cursor=cut]{cursor:crosshair}#cut-overlay{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}#cut-path{fill:#ffffff29;stroke:#26333d;stroke-width:4.5;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke;filter:drop-shadow(0 1px 0 rgba(255,255,255,.9))}.mode-status{position:absolute;top:max(16px,env(safe-area-inset-top));left:max(16px,env(safe-area-inset-left));display:flex;align-items:center;min-height:34px;padding:7px 11px;gap:8px;border:1px solid rgba(110,123,134,.22);border-radius:7px;background:#ffffffe0;box-shadow:0 8px 24px #29333e14;color:#34414b;font-size:13px;line-height:1;backdrop-filter:blur(14px);pointer-events:none;transition:top .16s ease}.saved-states{position:absolute;z-index:12;top:max(10px,env(safe-area-inset-top));left:max(12px,env(safe-area-inset-left));display:flex;align-items:center;max-width:calc(100vw - 24px);padding:2px;gap:5px;overflow-x:auto;scrollbar-width:none}.saved-states::-webkit-scrollbar{display:none}.saved-states[hidden]{display:none}.saved-state-button{position:relative;width:56px;height:42px;flex:0 0 56px;padding:2px;overflow:hidden;border:1px solid rgba(76,88,98,.28);border-radius:6px;background:#fffffff0;box-shadow:0 4px 12px #2a32391f;cursor:pointer}.saved-state-button img{display:block;width:100%;height:100%;border-radius:3px;object-fit:cover}.saved-state-button:hover,.saved-state-button.is-active{border-color:#238b81;box-shadow:0 0 0 2px #238b812e,0 4px 12px #2a32391f}.saved-state-button:focus-visible{outline:3px solid rgba(30,139,130,.24);outline-offset:2px}#stage.has-saved-states .mode-status{top:calc(max(10px,env(safe-area-inset-top)) + 50px)}.status-dot{width:8px;height:8px;flex:0 0 auto;border-radius:50%;background:#2a8f85;box-shadow:0 0 0 3px #2a8f851f}.toolbar{position:absolute;left:max(16px,env(safe-area-inset-left));bottom:max(16px,env(safe-area-inset-bottom));z-index:10;display:flex;align-items:center;min-height:56px;max-width:calc(100vw - 32px);padding:7px;gap:4px;border:1px solid rgba(101,113,124,.24);border-radius:8px;background:#ffffffeb;box-shadow:0 14px 34px #2a323924;backdrop-filter:blur(18px)}.tool-button,.icon-button,.draw-menu button,.color-options button{border:0;background:transparent;cursor:pointer;-webkit-tap-highlight-color:transparent}.tool-button{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 11px;gap:7px;border-radius:6px;color:#34414b;font-size:14px;white-space:nowrap}.tool-button svg,.icon-button svg,.draw-menu svg,.timeline svg,.dialog-heading svg{width:18px;height:18px;stroke-width:2}.tool-button .chevron{width:14px;height:14px;margin-left:-3px;color:#74808a}.tool-button:hover:not(:disabled),.icon-button:hover:not(:disabled),.tool-button.is-active,.icon-button.is-active{background:#e8f2f0;color:#176f68}.tool-button:focus-visible,.icon-button:focus-visible,.draw-menu button:focus-visible,.color-options button:focus-visible,input:focus-visible{outline:3px solid rgba(30,139,130,.24);outline-offset:2px}.tool-button:disabled,.icon-button:disabled{color:#aab2b9;cursor:not-allowed}.icon-button{display:inline-grid;place-items:center;width:42px;height:42px;flex:0 0 42px;border-radius:6px;color:#53606a}.two-d-button span{font-size:12px;font-weight:750;line-height:1;letter-spacing:0}.icon-button.danger:hover:not(:disabled),.tool-button.danger:hover:not(:disabled){background:#fff0f0;color:#c54e54}.toolbar-divider{width:1px;height:28px;margin:0 2px;background:#dce1e5}.draw-menu{position:absolute;z-index:11;left:max(16px,env(safe-area-inset-left));bottom:calc(max(16px,env(safe-area-inset-bottom)) + 66px);width:142px;padding:6px;border:1px solid rgba(101,113,124,.22);border-radius:8px;background:#fffffff5;box-shadow:0 14px 34px #2a323924;backdrop-filter:blur(18px)}.draw-menu[hidden]{display:none}.draw-menu button{display:flex;align-items:center;width:100%;height:40px;padding:0 10px;gap:9px;border-radius:6px;color:#34414b;font-size:14px;text-align:left}.draw-menu button:hover{background:#f0f4f5;color:#176f68}.timeline{position:absolute;z-index:8;left:50%;bottom:calc(max(16px,env(safe-area-inset-bottom)) + 70px);display:grid;grid-template-columns:20px minmax(160px,320px) 20px 40px;align-items:center;width:min(430px,calc(100vw - 40px));min-height:46px;padding:8px 12px;gap:9px;border:1px solid rgba(101,113,124,.2);border-radius:8px;background:#ffffffe0;box-shadow:0 10px 28px #2a32391a;transform:translate(-50%);backdrop-filter:blur(16px);transition:opacity .18s ease,transform .18s ease}.timeline.is-disabled{opacity:.5}.timeline-end{display:grid;place-items:center;color:#68757e}.timeline output{color:#4a5660;font-size:12px;font-variant-numeric:tabular-nums;text-align:right}input[type=range]{width:100%;height:6px;margin:0;border-radius:2px;appearance:none;background:linear-gradient(to right,#238b81 var(--progress, 0%),#d8dee2 var(--progress, 0%));cursor:pointer}input[type=range]::-webkit-slider-thumb{width:18px;height:18px;border:3px solid #fff;border-radius:50%;appearance:none;background:#238b81;box-shadow:0 1px 5px #1e403e59}input[type=range]::-moz-range-thumb{width:14px;height:14px;border:3px solid #fff;border-radius:50%;background:#238b81;box-shadow:0 1px 5px #1e403e59}.color-dialog{width:min(420px,calc(100vw - 32px));padding:0;overflow:hidden;border:1px solid rgba(95,108,119,.24);border-radius:8px;background:#fff;box-shadow:0 24px 70px #232c343d;color:#27333c}.color-dialog::backdrop{background:#27313947;backdrop-filter:blur(3px)}.confirm-dialog{width:min(320px,calc(100vw - 32px));padding:0;border:1px solid rgba(95,108,119,.24);border-radius:8px;background:#fff;box-shadow:0 24px 70px #232c343d;color:#27333c}.confirm-dialog::backdrop{background:#27313947;backdrop-filter:blur(3px)}.confirm-dialog form{padding:20px}.confirm-dialog p{margin:0;font-size:16px;font-weight:650}.confirm-actions{display:flex;justify-content:flex-end;margin-top:22px;gap:8px}.confirm-actions button{min-width:72px;height:38px;border:0;border-radius:6px;background:#eef2f3;color:#3d4952;cursor:pointer}.confirm-actions button:hover{background:#e3e9eb}.confirm-actions .danger-action{background:#d95d63;color:#fff}.confirm-actions .danger-action:hover{background:#c84f55}.color-dialog form{padding:20px}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.dialog-heading p{margin:0 0 4px;font-size:18px;font-weight:650}.dialog-heading span{color:#78838c;font-size:13px}.dialog-heading .icon-button{width:34px;height:34px;flex-basis:34px;margin:-5px -5px 0 0}.color-options{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:20px;gap:10px}.color-options button{display:grid;justify-items:center;min-width:0;padding:4px 0 2px;gap:7px;border-radius:6px;color:#5d6871;font-size:12px}.color-options button:hover{color:#1f2933}.color-options span{width:46px;height:46px;border:3px solid #fff;border-radius:50%;background:var(--swatch);box-shadow:0 0 0 1px #303a421f,0 5px 13px #303a421f;transition:transform .16s ease}.color-options button:hover span{transform:translateY(-2px) scale(1.05)}@media(max-width:700px){.toolbar{right:max(12px,env(safe-area-inset-right));left:max(12px,env(safe-area-inset-left));bottom:max(12px,env(safe-area-inset-bottom));max-width:none;min-height:54px;overflow-x:auto;scrollbar-width:none}.toolbar::-webkit-scrollbar{display:none}.tool-button{height:40px;padding:0 9px;gap:5px;font-size:13px}.icon-button{width:40px;height:40px;flex-basis:40px}.draw-menu{left:max(12px,env(safe-area-inset-left));bottom:calc(max(12px,env(safe-area-inset-bottom)) + 64px)}.timeline{bottom:calc(max(12px,env(safe-area-inset-bottom)) + 72px);grid-template-columns:18px minmax(120px,1fr) 18px 36px;width:min(390px,calc(100vw - 24px))}.mode-status{top:max(12px,env(safe-area-inset-top));left:max(12px,env(safe-area-inset-left))}}@media(max-width:430px){.toolbar{padding:5px;gap:2px}.tool-button span{display:none}.tool-button{width:30px;height:38px;flex:0 0 30px;padding:0}.icon-button{width:30px;height:38px;flex-basis:30px}.tool-button .chevron{display:none}.timeline{grid-template-columns:18px minmax(100px,1fr) 18px 34px;gap:6px}.color-dialog form{padding:18px 14px}.color-options{gap:4px}.color-options span{width:40px;height:40px}.color-options button{font-size:11px}}@media(prefers-reduced-motion:reduce){html:focus-within{scroll-behavior:auto!important}}
