:root{color-scheme:dark;--bg:#0b1017;--panel:#111a24;--line:#23303e;--fg:#e9eff5;--muted:#8b9eb1;--blue:#58b8ff;--amber:#ffbe69;--green:#6ee7b7;--red:#fb7185;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font:13px/1.55 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--fg);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,select{border:1px solid var(--line);background:#182330;color:var(--fg);border-radius:6px;cursor:pointer}button{padding:7px 12px;transition:background .15s,border-color .15s}button:hover{background:#263649;border-color:#40566c}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:4px}button:disabled{opacity:.45;cursor:not-allowed}h1,h2,p{margin:0}h2{font-size:12px;font-weight:600}i{display:inline-block;width:7px;height:7px;border-radius:2px;flex-shrink:0}.blue{background:var(--blue)}.amber{background:var(--amber)}.green{background:var(--green)}.red{background:var(--red)}.quiet{color:var(--muted);font-size:10px;font-weight:400;letter-spacing:.04em}.dot{display:inline-block;background:var(--green);width:6px;height:6px;border-radius:50%;box-shadow:0 0 10px #6ee7b74d}.dot.paused{background:var(--amber);box-shadow:none}
.topbar{height:64px;border-bottom:1px solid var(--line);padding:0 32px;display:flex;align-items:center;gap:26px;background:#0e151e}.brand{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:650;letter-spacing:-.2px}.brand span{color:var(--muted);font-weight:400;margin-left:-5px}.breadcrumb{color:#53687e;display:flex;gap:23px;font-size:12px}.breadcrumb span{color:#b1c0ce}.back-link{margin-left:auto;font-size:12px;color:var(--muted)}.back-link:hover{color:var(--fg)}.shell{max-width:1600px;margin:0 auto;padding:30px 32px 20px}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;gap:12px}.eyebrow{font:10px var(--mono);letter-spacing:.17em;color:var(--green);margin-bottom:9px}h1{font-size:29px;font-weight:600;letter-spacing:-1px;line-height:1.2}h1 span{font-size:20px;font-weight:400;letter-spacing:.03em;color:#b7c6d6;margin-left:10px}.subtitle{font-size:12px;color:var(--muted);margin-top:10px}.heading-tag{display:flex;gap:9px;align-items:center;font-size:11px;color:var(--muted);border:1px solid var(--line);padding:7px 11px;border-radius:5px}.scenario-bar{display:flex;align-items:center;gap:25px;border-block:1px solid var(--line);padding:12px 0;margin-bottom:20px}.scenario-label{font-size:11px;display:flex;flex-direction:column;gap:2px;min-width:90px}.scenario-label span{font:9px var(--mono);letter-spacing:.12em;color:#647b91}.scenario-options{display:flex;gap:8px}.scenario-options button{padding:9px 15px;background:transparent;font-size:12px}.scenario-options button span{font:10px var(--mono);color:#667c91;margin-right:6px}.scenario-options button[aria-pressed=true]{background:#183a36;border-color:#37665a;color:#9ff0ce}.scenario-options button[aria-pressed=true] span{color:#69b697}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.metric{padding:15px 18px;background:var(--panel);border:1px solid var(--line);border-radius:8px;position:relative;overflow:hidden}.metric>span{display:flex;justify-content:space-between;align-items:center;color:#b3c2d0;font-size:11px;gap:8px}.metric small{font-size:9px;color:#71879c}.metric>div{display:flex;align-items:baseline;gap:9px;margin:7px 0 5px}.metric b{font:500 31px/1.2 var(--mono);letter-spacing:-1.5px}.metric em{font-style:normal;font-size:11px;color:var(--muted)}.metric p{font-size:10px;color:#71879c}.metric strong{font-weight:500;color:#b9c8d5}.metric:nth-child(1) b{color:var(--green)}.metric:nth-child(2) b{color:var(--amber)}.metric .bad{color:var(--red)}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden;min-width:0}.panel-heading{height:43px;border-bottom:1px solid var(--line);padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:10px}.panel-heading h2{display:flex;align-items:center;gap:8px;white-space:nowrap}.panel-heading h2 .quiet{margin-left:7px;font:9px var(--mono)}.scene-status{color:var(--muted);font:10px var(--mono)}.viewport{height:414px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 50% 35%,#1b2938,#0e1721 85%)}.viewport>canvas{display:block;width:100%;height:100%;touch-action:none;outline-offset:-4px}.scene-labels{position:absolute;top:18px;left:22px;right:22px;display:flex;justify-content:space-around;z-index:1;pointer-events:none}.scene-labels span{display:flex;align-items:center;gap:7px;font-size:10px;color:#a6bbce;letter-spacing:.05em;background:#101b28cc;border:1px solid #283b4d;border-radius:4px;padding:4px 10px}.view-buttons{position:absolute;right:16px;bottom:42px;display:flex;gap:4px}.view-buttons button{font-size:10px;padding:5px 9px;background:#14202ddd}.view-buttons button[aria-pressed=true]{color:var(--green);border-color:#42675c}.scene-hint{position:absolute;bottom:14px;left:18px;font-size:10px;color:#708ba4;pointer-events:none}.parcel-key{position:absolute;top:51px;left:24px;display:flex;align-items:center;gap:6px;color:#728ba2;font-size:9px;pointer-events:none}.parcel-key i:not(:first-child){margin-left:8px}.scene-message{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:55px;z-index:2;text-align:center;color:var(--muted);background:#101a25e8}.scene-message[hidden]{display:none}.transport{display:flex;align-items:center;gap:8px;min-height:58px;border-top:1px solid var(--line);padding:10px 14px}.transport button{font-size:11px;padding:6px 12px}.transport .primary{background:var(--green);color:#0e3029;border-color:var(--green);min-width:78px;font-weight:600}.transport .primary:hover{background:#96f1cd}.speed{display:flex;align-items:center;gap:7px;font-size:10px;color:var(--muted);margin-left:7px}.speed select{padding:4px;font-size:11px}.time-scale{font-size:9px;color:#667e95;margin-left:5px}.clock{display:flex;align-items:center;gap:9px;margin-left:auto}.clock b{font:14px var(--mono)}.clock span{font-size:9px;color:var(--muted)}.mode-tag{font-size:9px;color:var(--green);background:#1c342f;padding:2px 6px;border-radius:4px}.control-content{padding:15px 17px}.control-intro{font-size:10px;color:var(--muted);margin-bottom:19px}.control{margin-bottom:17px}.control label{display:flex;align-items:center;gap:7px;font-size:11px;margin-bottom:7px}.control output{margin-left:auto;font:15px var(--mono);color:var(--fg)}.control output small{font:10px system-ui;color:var(--muted)}input[type=range]{width:100%;height:4px;display:block;margin:10px 0;accent-color:var(--green);cursor:pointer}#pickers{accent-color:var(--blue)}#packers{accent-color:var(--amber)}.range-labels{display:flex;justify-content:space-between;font-size:9px;color:#758da3}.outage-toggle{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;font-size:11px;cursor:pointer}.outage-toggle small{display:block;font-size:9px;color:#748ba1;margin-top:3px}.outage-toggle input{appearance:none;background:#334354;border:1px solid #495d70;border-radius:12px;width:30px;height:17px;position:relative;cursor:pointer;flex-shrink:0}.outage-toggle input:before{content:"";position:absolute;background:#b6c8d9;width:11px;height:11px;border-radius:50%;left:2px;top:2px;transition:transform .15s}.outage-toggle input:checked{background:#743741;border-color:#ac5667}.outage-toggle input:checked:before{transform:translateX(13px);background:#ffe1e6}.capacity-note{margin-top:13px;border:1px solid #4c4030;background:#30282080;border-radius:5px;font-size:10px;padding:8px 9px;color:#e0b77e}
.narration{display:flex;align-items:center;gap:23px;padding:16px 20px;border:1px solid #2e443f;border-left:3px solid var(--green);background:linear-gradient(100deg,#142821,#131d26 60%);border-radius:6px;margin:16px 0}.story-marker{display:flex;flex-direction:column;gap:5px;min-width:65px;font-size:10px;color:#92b8a9}.story-marker span{font:9px var(--mono);color:#597e71}.story-text h2{font-size:12px;color:#d8f0e6;margin-bottom:4px}.story-text p{font-size:11px;color:#8fa59e}.story-steps{display:flex;gap:5px;margin-left:auto}.story-steps i{width:19px;height:3px;background:#304239;border-radius:1px}.story-steps i.active{background:var(--green)}.lower-grid{display:grid;grid-template-columns:1fr 1fr 285px;gap:16px}.chart-panel canvas{display:block;width:100%;height:160px}.chart-legend{display:flex;align-items:center;gap:15px;padding:12px 16px 0;color:var(--muted);font-size:9px}.chart-legend span{display:flex;align-items:center;gap:5px}.stage-list{padding:12px 14px 0;display:flex;flex-direction:column;gap:9px}.stage-row{display:block;text-align:left;padding:0;background:none;border:0;border-radius:3px}.stage-row:hover{background:#1b2937}.stage-row[aria-pressed=true]{background:#20313e;outline:3px solid #20313e}.stage-row-top{display:flex;align-items:center;gap:6px;font-size:10px}.stage-row-top strong{font-weight:400;margin-left:auto;color:var(--muted);font:9px var(--mono)}.stage-bar{height:3px;background:#273644;border-radius:2px;margin-top:7px;overflow:hidden}.stage-bar span{display:block;height:100%;width:0;transition:width .2s}.stage-detail{font-size:10px;line-height:1.6;color:var(--muted);padding:12px 14px 10px}footer{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:19px 0 0;color:#627c93;font-size:10px}footer>button{margin-left:auto;font-size:10px;background:none;border-color:transparent;color:#9db4c8}.footer-divider{padding:0 9px;color:#35495c}footer details{width:100%;border-top:1px solid #1d2b38;padding-top:11px;font-size:10px}summary{cursor:pointer;width:max-content;color:#879fb5}footer details p{padding-top:8px;max-width:1000px;line-height:1.8}.noscript{padding:20px;border:1px solid var(--amber)}
@media(min-width:1500px){.viewport{height:460px}.control{margin-bottom:23px}.control-intro{margin-bottom:25px}}
@media(max-width:1150px){.shell{padding:24px 20px}.topbar{padding:0 20px}.workspace{grid-template-columns:minmax(0,1fr) 255px}.lower-grid{grid-template-columns:1fr 1fr 255px}.metric small{display:none}.panel-heading h2 .quiet{display:none}.time-scale{display:none}.scene-labels{left:10px;right:10px}.scene-labels span{font-size:9px;padding:4px 7px}}
@media(max-width:900px){.workspace{grid-template-columns:1fr}.control-content{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px;padding:16px}.control-intro{grid-column:1/-1;margin:0}.control{margin:0}.outage-toggle{padding-top:9px}.capacity-note{margin-top:0;align-self:center}.viewport{height:440px}.lower-grid{grid-template-columns:1fr 1fr}.stage-panel{grid-column:1/-1}.stage-list{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;padding:16px}.stage-detail{padding-top:2px}.breadcrumb{display:none}.heading-tag{display:none}.scenario-bar{gap:14px}.scenario-options{flex:1}.scenario-options button{padding:9px;flex:1}.scenario-options button span{display:none}}
@media(max-width:600px){.topbar{height:54px;padding:0 16px}.brand{font-size:12px}.brand img{width:24px;height:24px}.back-link{font-size:10px}.shell{padding:22px 12px 18px}h1{font-size:26px}h1 span{display:block;font-size:16px;margin:8px 0 0;letter-spacing:.04em}.subtitle{font-size:11px}.page-heading{margin-bottom:20px}.scenario-bar{display:block;padding:12px 0}.scenario-label{flex-direction:row;align-items:center;gap:12px;margin-bottom:10px}.scenario-options{display:grid;grid-template-columns:1fr 1fr;gap:6px}.scenario-options button{font-size:11px;padding:8px}.scenario-options button span{display:inline}.metrics{grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}.metric{padding:12px}.metric b{font-size:27px}.metric>span{font-size:10px}.metric p{font-size:9px}.viewport{height:330px}.panel-heading{padding:0 12px}.scene-status{font-size:8px}.scene-labels{top:13px;gap:5px}.scene-labels span{font-size:8px;gap:4px;padding:3px 5px}.parcel-key{top:45px;left:14px;font-size:8px}.scene-hint{font-size:8px;left:12px;bottom:12px}.transport{padding:10px 8px;gap:5px;flex-wrap:wrap}.transport button{font-size:10px;padding:6px 9px}.speed{margin-left:0}.clock{gap:5px}.clock b{font-size:12px}.clock span{display:none}.control-content{gap:18px}.control label{font-size:10px}.range-labels{font-size:8px}.control output{font-size:14px}.outage-toggle{font-size:10px}.outage-toggle small{font-size:8px}.capacity-note{font-size:9px;padding:7px}.narration{padding:13px 12px;gap:12px;align-items:flex-start}.story-marker{min-width:49px;font-size:9px}.story-steps{display:none}.story-text p{font-size:10px}.lower-grid{grid-template-columns:1fr;gap:12px}.stage-list{gap:12px}.chart-panel canvas{height:170px}footer>span{max-width:245px;font-size:9px}.footer-divider{padding:0 4px}footer>button{padding:5px;font-size:9px}}
@media(max-width:600px){.stage-list{grid-template-columns:1fr;gap:14px}.stage-row-top{font-size:11px}.stage-row-top strong{font-size:10px}}
@media(prefers-reduced-motion:reduce){*,*:before{transition:none!important}}