:root{color-scheme:dark;--bg:#0b1520;--panel:rgba(16,29,41,.94);--border:#2a3b49;--text:#e9f0f5;--muted:#94a8b9;--cyan:#61e3d0;--amber:#e9b16b;--font:"Segoe UI","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 var(--font);overflow:hidden}button,select,input{font:inherit}button,select{cursor:pointer}button{border:1px solid transparent;background:none;color:inherit;transition:background .18s,border-color .18s;color-scheme:dark}button:hover{background:#263a48}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}button:disabled{cursor:default;opacity:.5}h1,h2,h3,p{margin:0}h2{font-size:18px;font-weight:600}h3{font-size:16px;font-weight:600}.topbar{height:78px;padding:0 28px;display:flex;align-items:center;border-bottom:1px solid var(--border);gap:24px;background:#101c27}.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;min-width:240px}.brand .brand-plate{height:46px;width:auto;display:block;border-radius:9px;box-shadow:0 2px 12px #00000059}.brand .brand-sub{font-size:13px;letter-spacing:2px;color:var(--muted);border-left:1px solid var(--border);padding-left:12px}.scene-tabs{display:flex;align-self:stretch;margin:auto;gap:8px}.scene-tabs button{white-space:nowrap;font-size:14px;padding:0 20px;color:#8ca1b3;border-bottom:2px solid transparent}.scene-tabs b{font-family:Consolas,monospace;font-size:13px;margin-right:8px;font-weight:500}.scene-tabs button.active{color:var(--cyan);background:linear-gradient(0deg,#5de0ca12,transparent);border-bottom-color:var(--cyan)}.top-actions{display:flex;align-items:center;gap:16px}.demo-badge{border:1px solid #415364;color:#b9c7d2;font-size:12px;padding:4px 10px;border-radius:5px;white-space:nowrap}.icon-button{font-size:25px;width:38px;height:38px;line-height:30px}.workspace{height:calc(100dvh - 78px);position:relative;min-height:580px;overflow:hidden}#viewport{position:absolute;inset:0 0 32px}#viewport canvas{display:block;width:100%;height:100%;touch-action:none}.scene-heading{position:absolute;left:28px;top:28px;pointer-events:none}.eyebrow{font-family:Consolas,var(--font);font-size:12px;letter-spacing:1.6px;color:#94a9ba}.eyebrow span{margin-left:12px;color:#607d90}h1{font-size:26px;font-weight:600;letter-spacing:1px;margin:6px 0 4px}.scene-heading p{color:var(--muted);font-size:13px}.view-toolbar{position:absolute;top:28px;left:50%;transform:translateX(-50%);display:flex;gap:3px;background:#122330e8;border:1px solid var(--border);padding:5px;border-radius:8px;white-space:nowrap}.view-toolbar button{padding:6px 13px;border-radius:4px;color:#a6bac9}.view-toolbar button.active{background:#2e4f56;color:#83ebda}.view-toolbar>span{border-right:1px solid var(--border);margin:5px 4px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:12px;box-shadow:0 12px 35px #0002;backdrop-filter:blur(16px)}.flow-panel{position:absolute;left:28px;top:141px;width:255px;padding:20px}.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.panel-number{font-size:12px;color:#698698;font-family:Consolas,monospace}.flow-list{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:17px 0 20px}.flow-list button{padding:9px 4px;border:1px solid #334957;border-radius:5px;color:#9fb3c3;font-size:14px}.flow-list button.active{border-color:#62ddc6;background:#60dfc214;color:#85e8d7}.tiny-label{font-size:12px;color:#819bae;letter-spacing:.5px}.flow-copy h3{margin-top:5px}.flow-copy p{color:#97acbb;font-size:14px;line-height:1.75;margin-top:8px}.steps{margin:20px 0;padding:0;list-style:none}.steps li{position:relative;display:flex;align-items:center;gap:12px;padding:0 0 18px;color:#8ca2b4;font-size:14px}.steps li:not(:last-child):before{content:'';height:21px;position:absolute;left:11px;top:23px;border-left:1px solid #354c5e}.steps li:last-child{padding-bottom:0}.steps b{font:12px/23px Consolas,monospace;font-weight:400;border:1px solid #405669;border-radius:50%;width:24px;text-align:center;flex-shrink:0}.steps .current{color:#e7fdf9}.steps .current b{color:#071b22;border-color:var(--cyan);background:var(--cyan);box-shadow:0 0 14px #62ddc629}.steps .done{color:#61bda9}.route-legend{border-top:1px solid var(--border);padding-top:15px;display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:#8da4b5}.route-legend i,.scene-legend i{display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:2px}.cyan{background:var(--cyan)}.amber{background:var(--amber)}.inspector{position:absolute;right:28px;top:100px;width:236px;padding:20px}.dot{width:6px;height:6px;border-radius:50%;background:var(--cyan)}.overview-metrics{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px 15px}.metric{border-left:2px solid #345164;padding-left:12px}.metric strong{font-family:Consolas,var(--font);font-size:26px;font-weight:400;display:block;line-height:1.2;color:#e6f4f8}.metric label{font-size:12px;color:#91a9b9;display:block;margin-top:5px}.selection-details{border-top:1px solid var(--border);margin-top:20px;padding-top:15px}.selection-details p{font-size:14px;color:#a0b5c4;margin-top:7px;line-height:1.8}.selection-details h3{margin-top:5px;color:var(--cyan)}.detail-row{display:flex;justify-content:space-between;margin-top:9px;gap:10px;font-size:13px;color:#9db1c2}.detail-row b{font-weight:500;color:#d3e3eb}.drawing-note{border-top:1px solid var(--border);margin-top:18px;padding-top:14px}.drawing-note p{font-size:12px;line-height:1.7;color:#a7b8c5;margin-top:5px}.drawing-note>span:last-child{display:block;font-size:12px;color:#6e899c;margin-top:8px}.orientation{position:absolute;right:38px;bottom:184px;display:flex;flex-direction:column;align-items:center;color:#718b9d;pointer-events:none}.orientation>span{font-size:12px}.orientation svg{width:40px;height:40px;fill:#608d9e}.orientation small{font:12px Consolas}.scene-legend{position:absolute;bottom:143px;left:50%;transform:translateX(-50%);display:flex;gap:22px;color:#9aafbe;font-size:12px;pointer-events:none}.rack-dot{background:#66889c}.agv-dot{background:#54ddcb}.process-dot{background:#e3ae6a}.playback{position:absolute;bottom:51px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:16px;width:min(770px,calc(100% - 620px));min-width:550px;padding:14px 18px;background:#162733eF}.play-button{border-radius:6px;background:var(--cyan);color:#102731;font-weight:600;display:flex;align-items:center;justify-content:center;gap:10px;min-width:110px;height:40px}.play-button:hover{background:#83f1df}.play-button span:first-child{font-size:15px}.replay{font-size:25px;padding:0 3px;color:#9bb5c6}.timeline{flex:1;min-width:110px}.timeline-top{display:flex;justify-content:space-between;font-size:12px;color:#96aebe;gap:10px;white-space:nowrap}#time-display{font-family:Consolas,monospace;color:#7390a1}.timeline input{accent-color:var(--cyan);height:15px;width:100%;display:block;margin:5px 0 0;cursor:pointer}#speed{background:#1c303e;color:#c6dbe7;border:1px solid #344d5d;border-radius:5px;padding:6px;min-width:59px}#follow{color:#9fb6c5;font-size:13px;white-space:nowrap;border:1px solid #34505e;border-radius:5px;padding:7px 10px}#follow.active{color:var(--cyan);border-color:var(--cyan)}.statusbar{height:32px;position:absolute;bottom:0;left:0;right:0;border-top:1px solid #253846;display:flex;align-items:center;justify-content:space-between;padding:0 28px;gap:15px;font-size:12px;color:#7992a4;background:#101e29}.statusbar i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#53ceb5;margin-right:5px}.tooltip{position:absolute;pointer-events:none;padding:7px 12px;border:1px solid #547d8b;background:#0b1b27ed;border-radius:5px;font-size:13px;z-index:3}.loading{position:absolute;inset:0;background:#101c27;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;z-index:10}.loading p{color:var(--muted)}.loader{width:30px;height:30px;border:2px solid #355563;border-top-color:var(--cyan);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}dialog{width:min(1120px,94vw);max-height:92dvh;border:1px solid #3a5463;border-radius:14px;padding:0;background:#11212f;color:var(--text)}dialog::backdrop{background:#030c15bf;backdrop-filter:blur(7px)}.dialog-header{padding:23px 28px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.dialog-header h2{margin-top:4px}.dialog-header button{font-size:30px;width:40px;height:40px}.dialog-content{padding:20px 28px}.source-tabs{display:flex;gap:10px;margin-bottom:16px}.source-tabs button{border:1px solid var(--border);border-radius:5px;padding:8px 15px;color:#a2b9c9}.source-tabs button.active{color:var(--cyan);border-color:var(--cyan)}.reference-image{background:#f7fafc;max-height:48vh;overflow:auto;border-radius:6px}.reference-image img{display:block;width:100%;height:auto}#source-explanation{padding-top:16px;color:#bdcfdc;line-height:1.9}#source-explanation strong{color:#e9f5fc}.disclaimer{font-size:12px;color:#7f9aac;margin-top:14px;line-height:1.8}.error-retry{padding:10px 20px;border:1px solid #61e3d0;border-radius:6px}.label-hidden{display:none}
@media(min-width:1700px){.flow-panel{width:275px}.inspector{width:260px}.playback{width:800px}.scene-heading{top:32px}.flow-panel{top:155px}.inspector{top:105px}}
@media(max-height:850px) and (min-width:1101px){.flow-panel{top:135px;padding:16px}.flow-list{margin:12px 0}.steps{margin:15px 0}.steps li{padding-bottom:13px}.steps li:not(:last-child):before{height:16px}.flow-copy p{font-size:13px}.inspector{top:114px;padding:16px}.drawing-note{margin-top:14px}.scene-heading{top:20px}.scene-legend{bottom:134px}}
@media(max-width:1250px){.topbar{padding:0 20px;gap:12px}.brand{min-width:185px}.scene-tabs button{padding:0 12px}.scene-tabs b{margin-right:4px}.flow-panel{left:20px;width:223px}.inspector{right:20px;width:205px;padding:16px}.scene-heading{left:20px}h1{font-size:23px}.view-toolbar{left:auto;right:20px;transform:none;top:23px}.playback{min-width:560px;width:560px}.statusbar{padding:0 20px}.mouse-help{display:none}.panel-top .eyebrow{letter-spacing:.5px;font-size:11px}.flow-panel{padding:16px}}
@media(max-width:1000px){body{overflow:auto}.topbar{height:115px;flex-wrap:wrap;gap:0;padding-top:10px;justify-content:space-between}.brand{height:49px}.brand-plate{height:42px}.scene-tabs{order:3;width:100%;height:46px;margin:0;justify-content:center}.scene-tabs button{flex:1;padding:0 6px}.workspace{height:calc(100dvh - 115px);min-height:700px}.inspector{top:105px;width:180px;padding:13px}.overview-metrics{gap:12px}.metric strong{font-size:22px}.drawing-note{display:none}.flow-panel{top:125px;width:205px;padding:14px}.flow-copy p{font-size:13px}.flow-list button{font-size:13px}.view-toolbar button{padding:5px 9px}.playback{width:calc(100% - 40px);min-width:0;bottom:58px}.scene-heading p{font-size:12px}.scene-legend{bottom:145px}.orientation{display:none}.statusbar span:last-child{max-width:50%;text-align:right}.statusbar{font-size:11px}.scene-heading .eyebrow{font-size:11px}.flow-panel h2,.inspector h2{font-size:16px}}
@media(max-width:650px){.topbar{padding:8px 12px 0;height:110px}.brand-plate{height:36px}.brand-sub{display:none}.demo-badge{font-size:11px}.top-actions{gap:6px}.scene-tabs button{font-size:12px}.scene-tabs b{font-size:12px}.workspace{height:auto;min-height:1000px;overflow:hidden}#viewport{height:500px;bottom:auto}.scene-heading{left:16px;top:18px}h1{font-size:21px}.scene-heading p{display:none}.view-toolbar{top:88px;left:16px;right:auto;transform:none;padding:3px}.view-toolbar button{font-size:12px;padding:4px 10px}.flow-panel{top:560px;left:16px;right:16px;width:auto;padding:18px}.flow-list{grid-template-columns:repeat(4,1fr);margin:12px 0}.flow-copy p{font-size:14px}.steps{display:flex;gap:8px;margin:16px 0}.steps li{font-size:12px;display:block;flex:1;padding:0}.steps b{display:block;margin-bottom:7px}.steps li:not(:last-child):before{width:calc(100% - 29px);height:1px;left:29px;top:12px;border-left:0;border-top:1px solid #354c5e}.inspector{top:882px;left:16px;right:16px;width:auto;padding:18px}.overview-metrics{grid-template-columns:repeat(4,1fr);margin-top:10px}.selection-details{margin-top:15px}.selection-details p{font-size:13px}.playback{top:475px;bottom:auto;left:16px;transform:none;width:calc(100% - 32px);padding:12px;gap:10px}.play-button{min-width:40px;width:40px}.play-button span:last-child{display:none}.timeline-top{font-size:11px}#follow{font-size:12px;padding:6px}#speed{min-width:52px;font-size:12px}.replay{display:none}.scene-legend{top:443px;bottom:auto;white-space:nowrap;gap:18px}.statusbar{position:relative;margin-top:1140px;padding:0 16px;min-height:43px;height:auto;font-size:10px}.statusbar span:last-child{max-width:52%}.scene-heading .eyebrow{font-size:10px}.source-tabs{gap:4px}.source-tabs button{font-size:12px;padding:7px}.dialog-content,.dialog-header{padding:16px}.reference-image{max-height:35vh}.dialog-header h2{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Keep the control panels in document flow on narrow screens. */
@media(max-width:650px){.brand{min-width:0}.topbar{gap:0}.workspace{display:flex;flex-direction:column;min-height:0}.flow-panel{position:relative;top:auto;left:auto;right:auto;margin:600px 16px 14px;width:auto}.inspector{position:relative;top:auto;left:auto;right:auto;width:auto;margin:0 16px 18px}.statusbar{position:relative;margin-top:0;flex-wrap:wrap}.playback{display:grid;grid-template-columns:40px minmax(0,1fr) 52px;gap:8px;top:475px}.timeline{min-width:0}.timeline-top{white-space:normal}.timeline-top span:first-child{max-width:65%}#follow{grid-column:2/4;justify-self:end;padding:3px 8px;margin-top:-3px}#time-display{white-space:nowrap;font-size:10px}.metric{padding-left:8px}.metric strong{font-size:22px}.flow-list{grid-template-columns:1fr 1fr}.steps li{line-height:1.5}.view-toolbar{max-width:calc(100% - 32px)}.view-toolbar button{padding:4px 8px}.scene-tabs b{margin-right:2px}.scene-tabs button{font-size:11px}.top-actions{gap:2px}.demo-badge{padding:3px 6px}}

.source-limit{font-size:12px;color:#89a5b8;margin-top:8px}.original-preview{display:flex;align-items:center;gap:16px;font-size:12px;color:#8da8b8;margin-top:10px}.original-preview img{width:180px;height:auto;image-rendering:auto;border-radius:4px}.metric strong{white-space:nowrap}.metric:last-child strong{font-size:23px}