/* AI Infra uses the shared OpenLab palette and component shapes. Diagram colors retain their semantic meaning. */
body.infra{--if-ink:var(--ink);--if-muted:var(--muted);--if-line:var(--line);--if-accent:var(--accent);--if-pale:var(--surface-subtle);background:var(--paper);color:var(--ink);font-family:'Microsoft YaHei','PingFang SC','Segoe UI',sans-serif;line-height:1.7}
.infra [hidden]{display:none!important}.infra :focus-visible{outline:3px solid #117bca;outline-offset:4px}.infra p{color:var(--if-muted)}.infra button,.infra input,.infra select,.infra textarea{font:inherit}.infra button{cursor:pointer}.infra button:disabled{cursor:not-allowed}.infra a{text-decoration:none}.infra .infra-skip{position:fixed;left:15px;top:-80px;z-index:100;background:white;padding:12px}.infra .infra-skip:focus{top:10px}.infra-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.infra-bar,.infra-tabs,.infra-main,.infra-footer{max-width:1280px;margin:auto;padding-left:32px;padding-right:32px}.infra-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:25px;padding-bottom:16px;font-size:12px}.infra-bar>div{display:flex;gap:13px;align-items:center}.infra-label{font:bold 16px Consolas,monospace;letter-spacing:2px}.infra-separator{color:#abb8b7}.infra-stage{font-size:11px;color:#766244;display:flex;align-items:center;gap:7px}.infra-stage i{width:6px;height:6px;border-radius:50%;background:#b78b46}.infra-tabs{display:flex;gap:28px;border-bottom:1px solid var(--if-line);overflow:auto;scrollbar-width:thin;white-space:nowrap}.infra-tabs a{padding:12px 0 16px;color:var(--if-muted);font-size:13px;position:relative}.infra-tabs a[aria-current]{color:var(--if-accent);font-weight:700}.infra-tabs a[aria-current]:after{content:'';height:3px;background:var(--if-accent);position:absolute;bottom:0;left:0;right:0}.infra-main{padding-top:35px;padding-bottom:52px;min-height:65vh}.infra-view{animation:infra-enter .28s ease-out}.infra-hero{display:grid;grid-template-columns:1.18fr 1fr;gap:60px;align-items:center;background:var(--lab-hero-background);color:var(--ink);border-radius:var(--lab-hero-radius);padding:46px 48px;overflow:hidden;position:relative}.infra-hero:after{content:none;position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,#7be1b3 0 32%,#1d4548 32%)}.infra .infra-kicker{font:11px/1.6 Consolas,'Microsoft YaHei',monospace;letter-spacing:1.5px;margin:0 0 16px;color:var(--muted)}.infra-hero .infra-kicker{color:var(--muted)}.infra .infra-hero h1{font-size:38px;font-weight:650;letter-spacing:0;line-height:1.3;margin:12px 0 18px;color:var(--ink)}.infra .infra-intro{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:30px}.infra-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.infra .infra-primary,.infra .infra-outline,.infra .infra-small-btn{display:inline-flex;gap:22px;align-items:center;justify-content:center;padding:10px 22px;border-radius:24px;border:1px solid transparent;font-size:13px;font-weight:600;text-decoration:none;line-height:1.5;transition:background .16s,transform .16s;min-height:42px}.infra .infra-primary{background:var(--accent);color:white}.infra .infra-primary:hover{background:var(--accent-hover)}.infra-hero .infra-primary{background:var(--accent);color:white}.infra-hero .infra-primary:hover{background:var(--accent-hover)}.infra .infra-outline{background:transparent;border-color:#b6b6bc;color:var(--ink)}.infra .infra-outline:hover{background:var(--accent-soft)}.infra .infra-small-btn{background:white;border-color:var(--line);color:var(--if-ink);padding:9px 14px;font-weight:500}.infra .infra-small-btn:hover{background:var(--surface-subtle)}.infra .infra-hero-note{font-size:12px;color:var(--muted);line-height:1.9;margin:23px 0 0}.infra-rack{background:#ffffffb3;border:1px solid #d2e5f0;padding:22px;transform:none;box-shadow:none;border-radius:20px}.rack-top,.rack-bottom{display:flex;justify-content:space-between;gap:10px;font:10px/1.5 Consolas,'Microsoft YaHei',monospace;color:var(--muted);letter-spacing:.4px}.rack-top{padding-bottom:17px;border-bottom:1px solid var(--line)}.rack-slots{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:20px 0}.rack-slot{display:flex;align-items:center;gap:12px;padding:17px 11px;background:var(--surface-subtle);border:1px solid var(--line);font-size:11px;border-radius:12px}.rack-slot>span{font:12px Consolas;color:var(--muted)}.rack-slot b{font-weight:500;color:var(--ink)}.rack-slot i{width:5px;height:5px;background:#88ddbb;margin-left:auto;border-radius:50%}.rack-slot.learning{background:#edf6fe}.rack-slot.learning i{background:#8bc0df}.rack-slot.systems{background:#f5f5f7}.rack-slot.systems i{background:#d4c591}.rack-slot.spare{opacity:1;border-style:dashed}.rack-slot.spare i{background:#65817a}.rack-bottom{font-size:9px;padding-top:13px;border-top:1px solid var(--line)}.infra-brief-strip{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--if-line);padding:28px 0}.infra-brief-strip>div{display:flex;gap:16px;align-items:baseline;justify-content:center;border-right:1px solid var(--if-line)}.infra-brief-strip>div:last-child{border:0}.infra-brief-strip b{font-size:13px}.infra-brief-strip span{font-size:11px;color:var(--if-muted)}.infra-section{margin-top:52px}.infra-section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px}.infra-section-head h2{font-size:25px;line-height:1.5;margin:0}.infra-section-head .infra-kicker{margin-bottom:8px}.infra-section-head>p{font-size:12px;margin:0}.infra-layers{display:grid;grid-template-columns:repeat(2,1fr);border:0;gap:20px}.infra-layers>a{padding:30px;background:var(--surface-subtle);transition:background .15s;border:1px solid transparent;border-radius:var(--lab-card-radius)}.infra-layers>a:hover{background:#eeeef1;border-color:#d8d8dc}.infra-layers span{font:10px Consolas;color:var(--muted);letter-spacing:1px}.infra-layers h3{font-size:19px;margin:16px 0 8px}.infra-layers p{font-size:13px;margin:0 0 20px}.infra-layers b{font-size:12px;font-weight:500;color:var(--if-accent)}.infra-review-call{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:30px 36px;background:var(--surface-subtle);margin-top:35px;border-radius:var(--lab-card-radius)}.infra-review-call h2{font-size:24px;margin:0 0 10px}.infra-review-call p{font-size:13px;margin:0}.infra-review-call .infra-kicker{margin-bottom:10px}.infra-evidence-note{display:flex;gap:28px;padding:22px 0;border-top:1px solid var(--if-line);margin-top:30px;font-size:12px}.infra-evidence-note b{white-space:nowrap}.infra-evidence-note p{margin:0}.infra-page-head{padding:5px 0 28px}.infra-page-head h1{font-size:34px;line-height:1.4;margin:0 0 16px}.infra-page-head>p,.infra-page-head>div>p{font-size:13px;max-width:840px;margin-bottom:0}.infra-filter{display:flex;align-items:end;gap:16px;padding:24px;background:var(--surface-subtle);border-radius:var(--lab-card-radius)}.infra-filter label{display:flex;flex-direction:column;gap:6px;font-size:11px}.infra-filter .infra-search{flex:1}.infra input:not([type=range]):not([type=checkbox]),.infra select,.infra textarea{border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:13px;background:white;color:var(--ink);max-width:100%}.infra-filter input{width:100%}.infra-result-line{display:flex;justify-content:space-between;font-size:11px;color:var(--if-muted);margin:25px 0 15px}.infra-project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.infra-project-card{background:var(--surface-subtle);border:1px solid transparent;padding:26px;display:flex;flex-direction:column;transition:transform .2s,background .2s;border-radius:var(--lab-card-radius)}.infra-project-card:hover{border-color:#d8d8dc;background:#eeeef1;transform:translateY(-2px)}.infra-card-meta{display:flex;justify-content:space-between;gap:8px;font:10px Consolas,'Microsoft YaHei',sans-serif;color:var(--muted)}.infra-project-card h2{font-size:22px;margin:17px 0 10px;letter-spacing:0}.infra-project-card>p{font-size:14px;line-height:1.8;min-height:48px;margin:0 0 20px}.infra-project-question{padding:14px;background:white;font-size:12px;color:var(--ink);margin-bottom:20px;border-radius:12px}.infra-project-card footer{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:8px}.infra-project-card footer span{font-size:10px;color:var(--muted)}.infra-project-card footer button{border:0;background:none;font-size:12px;color:var(--ink);padding:4px 0}.infra-empty{text-align:center;padding:70px}.infra-tag{display:inline-block;font-size:11px;color:var(--muted);background:var(--accent-soft);padding:5px 10px;border-radius:20px;font-weight:500}.infra-demo-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.infra-demo-tabs button{background:white;border:1px solid var(--line);border-radius:24px;padding:11px 18px;font-size:12px;color:var(--muted)}.infra-demo-tabs button[aria-pressed=true]{background:var(--accent);color:white;border-color:var(--accent)}.infra-demo{display:grid;grid-template-columns:.85fr 1.15fr;gap:0;border:1px solid var(--if-line);background:white;border-radius:var(--lab-card-radius);overflow:hidden}.demo-description{padding:32px;border-right:1px solid var(--if-line)}.demo-description h2{font-size:25px;margin:18px 0 15px}.demo-description>p{font-size:13px}.infra-range{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12px;margin:25px 0}.infra-range input{width:100%;accent-color:var(--if-accent)}.infra-range output{color:var(--if-accent);font-family:Consolas,monospace}.infra-switch{display:flex;align-items:center;gap:9px;font-size:12px;margin:20px 0}.infra-switch input{accent-color:var(--if-accent);width:16px;height:16px}.infra .infra-fine{font-size:11px;line-height:1.8;color:var(--muted)}.demo-canvas{padding:35px;display:flex;flex-direction:column;justify-content:center;background:var(--surface-subtle)}.cache-request{display:grid;grid-template-columns:50px 1fr 86px;gap:8px;align-items:center;margin:13px 0;font-size:10px}.cache-request>span{color:#697f75}.cache-prefix,.cache-suffix{padding:13px 8px;background:#bce4d3;border:1px solid #a4cbb9;border-radius:3px;text-align:center;color:#315b46}.cache-prefix.reused{background:repeating-linear-gradient(135deg,#e7f1eb,#e7f1eb 5px,#ddeae2 5px,#ddeae2 6px);border-style:dashed}.cache-suffix{background:#d7e6ed;border-color:#c2d5e0;color:#3d5b69}.demo-metrics{display:flex;gap:25px;border-top:1px solid var(--line);padding-top:23px;margin-top:25px}.demo-metrics>div{flex:1}.demo-metrics span{display:block;font-size:10px;color:var(--muted)}.demo-metrics b{display:block;font:28px/1.8 Consolas,monospace;color:var(--ink)}.demo-canvas>p{font-size:12px}.infra-select-label{display:grid;gap:9px;font-size:12px;margin-top:20px}.parallel-diagram{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:25px 0}.parallel-gpu{text-align:center;border:1px solid #8cb8a4;background:#e2f2e8;border-radius:4px;padding:19px 5px;position:relative}.parallel-gpu b{display:block;font:14px Consolas}.parallel-gpu span{display:block;font-size:10px;color:#668c77;margin-top:9px}.parallel-gpu.connected:not(:last-child):after{content:'↔';position:absolute;right:-15px;top:24px;color:#167a59;z-index:1}.parallel-gpu.pipeline:not(:last-child):after{content:'→'}.demo-canvas h3{font-size:18px}.fusion-flow{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:center;min-height:120px;font-size:13px}.fusion-node{background:#dcece2;border:1px solid #8bac99;padding:20px 16px;border-radius:4px}.fusion-memory{font-size:10px;line-height:2;text-align:center;border:1px dashed #a6b4ad;padding:14px}.infra-experiment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.infra-experiment{background:var(--surface-subtle);padding:26px;border-radius:var(--lab-card-radius)}.infra-experiment h3{font-size:19px;margin:12px 0}.infra-experiment p{font-size:12px}.infra-experiment ol{padding-left:20px;font-size:12px;line-height:2}.infra-experiment footer{display:flex;justify-content:space-between;align-items:center;margin-top:20px;border-top:1px solid var(--if-line);padding-top:18px;font-size:11px;color:var(--muted)}.infra-capacity-layout{display:grid;grid-template-columns:365px minmax(0,1fr);gap:28px}.infra-capacity-controls{background:var(--surface-subtle);border:0;padding:24px;border-radius:var(--lab-card-radius)}.infra-capacity-controls h2{font-size:20px;margin:0 0 23px}.infra-capacity-controls>label{display:grid;font-size:12px;gap:7px;margin:18px 0}.infra-capacity-controls .infra-switch{display:flex}.infra-input-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.infra-input-pair label{display:grid;gap:7px;font-size:11px}.capacity-row-head,.capacity-input-row{display:grid;grid-template-columns:1fr 65px 73px;gap:8px;align-items:center;font-size:11px}.capacity-row-head{color:var(--muted);border-top:1px solid var(--if-line);padding-top:20px;margin-top:20px;margin-bottom:9px}.capacity-input-row{margin:9px 0}.capacity-input-row input{width:100%;padding:7px!important}.capacity-input-row label{white-space:nowrap}.dot{display:inline-block;width:6px;height:6px;margin-right:7px;border-radius:50%;vertical-align:middle}.dot.service{background:#428566}.dot.learning{background:#5793b5}.dot.research{background:#ad9c5c}.infra-capacity-result{min-width:0}.capacity-status{background:#e7f2eb;color:#235d3b;padding:16px 20px;font-size:12px;border-left:3px solid #438f61;border-radius:12px}.capacity-status.warn{background:#fbefe4;border-color:#b76a38;color:#7a4220}.capacity-status strong{display:block;font-size:16px;margin-bottom:4px}.capacity-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:26px 0}.capacity-stats span,.capacity-stats small{display:block;font-size:11px;color:var(--muted)}.capacity-stats strong{font:38px/1.5 Consolas,monospace;color:var(--ink)}.capacity-slots{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:28px}.capacity-slot{background:#edf1ee;border:1px dashed #b7c6bd;padding:13px 8px;font-size:10px;color:#718178;display:flex;justify-content:space-between;gap:5px;border-radius:10px}.capacity-slot.service{background:#d9eadf;border-style:solid;color:#315c43}.capacity-slot.learning{background:#deebf1;border-style:solid;color:#355c6f}.capacity-slot.research{background:#f0ecdc;border-style:solid;color:#6c613c}.infra-table-wrap{overflow:auto}.infra-table{width:100%;border-collapse:collapse;background:white;font-size:12px}.infra-table caption{text-align:left;font-size:13px;font-weight:600;margin-bottom:13px}.infra-table th,.infra-table td{text-align:left;border-bottom:1px solid var(--if-line);padding:13px 15px;white-space:nowrap}.infra-table th{font-size:11px;color:var(--muted);background:var(--surface-subtle);font-weight:500}.infra-table .selected-row{background:#edf6fe;font-weight:600}.infra-formula{font-size:11px;line-height:1.9;margin:19px 0}.infra-boundaries{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.infra-boundaries article{padding:23px;background:var(--surface-subtle);border-radius:20px}.infra-boundaries b{font-size:18px}.infra-boundaries p{font-size:12px}.infra-source-line{font-size:11px;line-height:2}.infra-source-line a{display:inline-block;text-decoration:underline;margin-right:20px;color:#285c9a}.infra-plan-head{display:flex;justify-content:space-between;gap:24px;align-items:start}.infra-plan-head h1{font-size:30px}.infra-plan-head .infra-actions{justify-content:end}.infra-decision{background:var(--surface-subtle);color:var(--ink);padding:30px 35px;margin-bottom:32px;border-radius:var(--lab-card-radius)}.infra-decision>span{font-size:11px;color:var(--muted);letter-spacing:2px}.infra-decision h2{font-size:24px;color:var(--ink);margin:10px 0}.infra-decision p{font-size:13px;color:var(--muted);max-width:900px}.plan-section{margin:32px 0;border-top:1px solid var(--if-line);padding-top:24px}.plan-section>h2{font-size:22px;margin:0 0 18px}.plan-section>p{font-size:13px;line-height:1.9}.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.plan-block{padding:24px;background:var(--surface-subtle);border:0;border-radius:20px}.plan-block h3{font-size:16px;margin:0 0 11px}.plan-block p,.plan-block li{font-size:12px;line-height:1.9}.plan-block ul{padding-left:18px;margin:0}.plan-flow{display:flex;gap:10px;flex-wrap:wrap}.plan-flow .plan-block{flex:1;min-width:170px;border-top:0}.plan-flow small{font-size:10px;color:var(--muted)}.plan-gate{margin-top:15px;padding-top:15px;border-top:1px solid var(--line);color:var(--ink)!important}.plan-decisions{background:var(--surface-subtle);padding:24px 24px 24px 45px;font-size:13px;line-height:2;border-radius:20px}.plan-sources{font-size:12px;line-height:2;padding-left:20px}.plan-sources a{text-decoration:underline;color:#285c9a}.infra-review-notes{margin-top:35px;background:var(--surface-subtle);padding:28px;border-radius:var(--lab-card-radius)}.infra-review-notes h2{font-size:20px;margin:0 0 10px}.infra-review-notes p{font-size:12px}.infra-review-notes textarea{width:100%;resize:vertical}.infra-note-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:13px;font-size:11px;color:var(--muted)}.infra-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--if-line);padding-top:23px;padding-bottom:30px;font-size:10px;color:var(--muted)}.infra-footer a{font-size:12px}.infra-dialog{max-width:700px;width:calc(100% - 36px);border:1px solid var(--line);border-radius:24px;padding:38px;color:var(--ink);background:white;max-height:85dvh;overflow:auto}.infra-dialog::backdrop{background:#19191966;backdrop-filter:blur(3px)}.infra-dialog-close{position:absolute;right:14px;top:10px;border:0;background:none;font-size:27px;color:var(--muted);padding:2px 9px}.infra-dialog h2{font-size:30px;margin:10px 0}.infra-dialog h3{font-size:14px;margin:23px 0 7px}.infra-dialog p,.infra-dialog li{font-size:13px;line-height:1.9}.infra-dialog a{text-decoration:underline;color:#285c9a}.infra-dialog .infra-fine{border-top:1px solid var(--if-line);padding-top:18px}.infra-load-error{background:#fff0e2;padding:25px;border:1px solid #c88b5d}.infra .lab-guide-trigger{bottom:18px}
@keyframes infra-enter{from{transform:translateY(5px)}to{transform:none}}
@media(max-width:1050px){.infra-hero{padding:40px 32px;gap:28px}.rack-slot{padding:14px 8px;gap:7px}.infra-rack{padding:16px}.infra-brief-strip>div{display:block;text-align:center}.infra-brief-strip span{display:block;margin-top:4px}.infra-project-grid{grid-template-columns:repeat(2,1fr)}.infra-capacity-layout{grid-template-columns:320px minmax(0,1fr)}.infra-plan-head{display:block}.infra-plan-head .infra-actions{justify-content:start;margin-top:18px}.plan-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.infra-bar,.infra-tabs,.infra-main,.infra-footer{padding-left:20px;padding-right:20px}.infra-bar{flex-direction:column;align-items:start;gap:8px;padding-top:18px;font-size:10px}.infra-label{font-size:14px}.infra-tabs{gap:22px}.infra-tabs a{font-size:12px}.infra-main{padding-top:23px}.infra-hero{grid-template-columns:1fr;gap:28px;padding:26px;border-radius:20px}.infra .infra-hero h1{font-size:32px}.infra .infra-intro{font-size:13px}.infra-rack{transform:none;max-width:460px;width:100%;margin:auto}.rack-slot{padding:14px 12px}.infra-brief-strip{grid-template-columns:repeat(2,1fr);gap:22px;padding:25px 0}.infra-brief-strip>div:nth-child(2){border:0}.infra-section{margin-top:35px}.infra-section-head{display:block}.infra-section-head h2{font-size:23px}.infra-section-head>p,.infra-section-head>.infra-tag{margin-top:14px}.infra-layers{grid-template-columns:1fr}.infra-layers>a{padding:25px}.infra-layers h3{font-size:18px}.infra-review-call{display:block;padding:25px}.infra-review-call h2{font-size:22px}.infra-review-call .infra-primary{margin-top:22px}.infra-evidence-note{display:block}.infra-evidence-note p{margin-top:10px}.infra-page-head h1{font-size:28px}.infra-filter{padding:18px;flex-wrap:wrap;gap:12px}.infra-filter .infra-search{flex-basis:100%}.infra-result-line{flex-direction:column;gap:6px}.infra-project-grid{grid-template-columns:1fr}.infra-project-card>p{min-height:0}.infra-demo{grid-template-columns:1fr}.demo-description{padding:24px;border-right:0;border-bottom:1px solid var(--if-line)}.demo-canvas{padding:24px 18px}.demo-description h2{font-size:24px}.demo-metrics{gap:12px}.demo-metrics b{font-size:23px}.infra-demo-tabs{gap:7px}.infra-demo-tabs button{font-size:11px;padding:10px 11px}.cache-request{grid-template-columns:36px 1fr 70px;gap:5px}.cache-prefix,.cache-suffix{font-size:9px;padding:12px 5px}.infra-experiment-grid{grid-template-columns:1fr}.infra-capacity-layout{grid-template-columns:1fr}.infra-capacity-controls{padding:22px}.capacity-stats{gap:10px}.capacity-stats strong{font-size:34px}.capacity-slots{grid-template-columns:repeat(2,1fr)}.infra-boundaries{grid-template-columns:1fr}.plan-grid{grid-template-columns:1fr}.infra-decision{padding:25px}.infra-decision h2{font-size:21px}.plan-flow{flex-direction:column}.infra-review-notes{padding:22px}.infra-footer{flex-direction:column;gap:7px}.infra-dialog{padding:30px 24px}}
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@media(prefers-reduced-motion:reduce){.infra-view{animation:none}.infra *{scroll-behavior:auto!important;transition:none!important}}
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