:root{--paper:#f5f4ee;--ink:#1b2922;--muted:#526258;--line:#cbd1c6;--accent:#ce4825;--code:#e9ece3;--forest:#20372b;--soft:#e9ede3}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{cursor:pointer}.wrap{max-width:1320px;margin:auto;padding:0 5vw}.skip{position:absolute;top:-100px;background:var(--ink);color:#fff;padding:12px;z-index:10}.skip:focus{top:0}header{border-bottom:1px solid var(--line)}nav{display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:88px}.brand{text-decoration:none;font-weight:800;letter-spacing:-.9px;font-size:23px;white-space:nowrap}.brand i{font-style:normal;color:var(--accent)}.brand-dot{display:inline-block;width:5px;height:5px;background:var(--accent);margin:0 0 3px 5px}.navlinks{display:flex;flex-wrap:wrap;align-items:center;gap:27px;font-size:12px;font-weight:600}.navlinks a{text-decoration:none}.navlinks .github{padding:7px 13px;border:1px solid var(--line)}.language{color:var(--accent)}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:65px;padding:84px 0 75px;align-items:center}.eyebrow,.index{font:10px/1.5 ui-monospace,SFMono-Regular,monospace;letter-spacing:1.5px;color:var(--accent)}.eyebrow{display:flex;align-items:center;gap:9px}.tiny-square{width:6px;height:6px;background:var(--accent)}h1{font-size:clamp(48px,5.25vw,74px);line-height:1.08;letter-spacing:-3.9px;font-weight:600;margin:25px 0}h1 span{color:var(--accent)}.hero h1 span{font-size:.88em}.lead{font-size:18px;line-height:1.7;max-width:540px;color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border:1px solid var(--ink);background:transparent;color:var(--ink);text-decoration:none;font-size:12px;font-weight:600;border-radius:0}.button.primary{background:var(--ink);color:var(--paper)}.button:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.hero-meta{font:10px/1.8 ui-monospace,monospace;color:var(--muted);margin:25px 0 0}.hero-meta span{padding:0 7px}.architecture-visual{background:var(--forest);color:#edf1e4;box-shadow:15px 15px 0 #e4e7dc;border:1px solid #314d3c}.visual-top,.visual-bottom{font:9px ui-monospace,monospace;letter-spacing:1.4px;padding:16px 20px;color:#bdcbb6}.visual-top{display:flex;justify-content:space-between;border-bottom:1px solid #50634f;gap:10px}.status{display:flex;align-items:center;gap:6px}.status i{width:5px;height:5px;background:#b8d19b;border-radius:50%}.interface-line{display:flex;justify-content:space-around;margin:24px 28px 0;font:11px ui-monospace,monospace}.vertical-arrow{text-align:center;font:18px/1.6 ui-monospace,monospace;color:#8caa80}.visual-cache{margin:0 28px;display:flex;align-items:center;border:1px solid #75866a;padding:14px;gap:13px}.node-index{font:10px ui-monospace,monospace;color:#afc698}.visual-cache strong{display:block;font-size:13px;font-weight:500}.visual-cache small{display:block;font-size:10px;color:#b6c8ab}.node-icon{margin-left:auto;font-size:24px;color:#a8c092}.decode-loop{margin:0 20px;border:1px solid #769766;background:#294432}.loop-title{display:flex;justify-content:space-between;font:9px ui-monospace,monospace;letter-spacing:1px;padding:12px 13px;color:#c9dbb8}.loop-title span{font-size:7px;color:#c9dbb8;letter-spacing:.5px}.loop-nodes{display:flex;align-items:center;justify-content:space-around;gap:8px;padding:10px 12px 20px}.loop-nodes>div{border:1px solid #75866a;padding:11px 8px;text-align:center;min-width:72px;flex:1}.loop-nodes b{display:block;font-size:12px;font-weight:500}.loop-nodes small{font:9px ui-monospace,monospace;color:#bdd0b0}.loop-nodes .target-node{background:#d6e3c7;color:#1b3524;border-color:#d6e3c7}.target-node small{color:#3e593c}.feedback{display:flex;flex-wrap:wrap;justify-content:space-between;gap:5px;padding:11px 12px;border-top:1px dashed #728e64;font:8px/1.5 ui-monospace,monospace;color:#bdcdb0}.feedback strong{font-weight:400;color:#e3eccc}.visual-output{display:flex;justify-content:center;gap:12px;font:10px ui-monospace,monospace;color:#dbe8ca}.visual-output span+span{color:#afc29c}.visual-bottom{text-align:center;margin-top:23px;border-top:1px solid #50634f;font-size:8px}.strap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:15px;border-block:1px solid var(--line);padding:20px 0;font:10px/1.6 ui-monospace,monospace;color:var(--muted)}.strap span:before{content:'+';margin-right:9px;color:var(--accent)}.section{padding:72px 0;border-bottom:1px solid var(--line)}.sectionhead{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:end;margin-bottom:34px}.sectionhead>p{color:var(--muted);font-size:14px;max-width:450px;margin:0 0 8px}h2{font-size:clamp(29px,3vw,41px);font-weight:550;line-height:1.2;letter-spacing:-1.5px;margin:13px 0 20px}h3{font-size:21px;line-height:1.35;font-weight:550;letter-spacing:-.5px}.capabilities{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-bottom:26px}.capability{padding:30px 28px 0 0}.capability+.capability{padding-left:28px;border-left:1px solid var(--line)}.capability p{color:var(--muted);font-size:14px}.capability h3{max-width:300px}.textlink{font-size:12px;font-weight:600}.milestones{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line)}.milestones>a{text-decoration:none;padding:28px 26px 28px 0;display:flex;flex-direction:column;gap:9px}.milestones>a+a{border-left:1px solid var(--line);padding-left:26px}.milestones strong{font:500 48px/1.2 ui-monospace,monospace;letter-spacing:-3px}.milestones strong span{font-size:23px;letter-spacing:-1px;color:var(--muted)}.milestones>a>span{font-size:13px;font-weight:600}.milestones small{font-size:10px;color:var(--muted)}.section-tail{display:flex;flex-wrap:wrap;justify-content:space-between;gap:15px;margin-top:25px}.section-tail>span{font:10px/1.6 ui-monospace,monospace;color:var(--muted)}.demo-teaser{display:grid;grid-template-columns:.72fr 1fr;gap:60px;align-items:center}.demo-teaser p{font-size:14px;color:var(--muted)}.capture{display:block;width:100%;height:auto;border:1px solid var(--line)}.capture-link{display:block;box-shadow:10px 10px 0 #e4e7dc}.install{display:grid;grid-template-columns:1.12fr .88fr;gap:55px}.code-panel{background:var(--forest);color:#e3edda;align-self:start}.code-head{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid #61705c;gap:10px;font:8px ui-monospace,monospace;letter-spacing:1px}.copy-button{background:transparent;color:#dfe9d7;border:1px solid #7a8e6f;padding:4px 10px;font:10px ui-monospace,monospace}.code-panel pre{padding:18px 20px;margin:0;font:10px/2 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.copy-status{font:10px ui-monospace,monospace;display:block;padding:0 20px 12px;min-height:24px;color:#cfddc2}.step{display:grid;grid-template-columns:30px 1fr;gap:10px;margin:0 0 20px}.step b{color:var(--accent);font:10px/2.1 ui-monospace,monospace}.step strong{font-size:14px;font-weight:600}.step p{margin:4px 0;color:var(--muted);font-size:12px}.closing{padding:76px 0 90px}.closing h2{font-size:45px}.closing p{color:var(--muted);max-width:580px;font-size:14px}.closing.compact h2{font-size:34px}.closing>.textlink{display:block;margin-top:22px}footer{border-top:1px solid var(--line);padding-top:35px!important;padding-bottom:40px!important;display:flex;justify-content:space-between;gap:30px}footer .brand{font-size:18px}footer p{color:var(--muted);font-size:10px;line-height:1.8}.footlinks{display:flex;gap:25px;align-items:start;font-size:11px}.page-heading{padding:70px 0 60px;max-width:980px}.page-heading h1{font-size:clamp(45px,5vw,67px)}.page-heading .lead{max-width:700px;font-size:16px}.architecture-wide{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:0 0 65px;border-bottom:1px solid var(--line)}.architecture-wide>div>p{color:var(--muted);font-size:14px}.architecture-explorer{border:1px solid var(--line)}.stage-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}.stage-tabs button{padding:17px 10px;background:transparent;border:0;color:var(--muted);font:11px ui-monospace,monospace}.stage-tabs button[aria-selected=true]{background:var(--forest);color:#edf1e4}.stage-panel{padding:30px;min-height:260px;background:var(--soft)}.stage-panel[hidden]{display:none}.stage-panel p{font-size:14px;max-width:750px;color:var(--muted)}.stage-panel code{display:block;font:11px/1.8 ui-monospace,monospace;margin:20px 0;overflow-wrap:anywhere}.milestone-detail{display:grid;grid-template-columns:.55fr 1fr;gap:50px;scroll-margin-top:30px}.milestone-detail>.index{padding-top:18px}.milestone-detail p{font-size:14px;color:var(--muted)}.measurement{font-size:11px!important;line-height:1.8;color:var(--muted);border-left:2px solid var(--line);padding-left:14px;margin-top:22px}.demo-split{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;padding-top:0}.demo-split p{font-size:14px;color:var(--muted)}.code{padding:22px;background:var(--code);font:11px/1.9 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.output-code{font-size:12px}.demo-metrics{display:flex;justify-content:space-between;gap:15px;margin-top:25px}.demo-metrics>div{display:flex;flex-direction:column}.demo-metrics strong{font:500 27px ui-monospace,monospace;letter-spacing:-1px}.demo-metrics span{font-size:10px;color:var(--muted)}.replay{border:1px solid var(--line);background:var(--soft)}.replay-head{padding:15px 20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;background:var(--forest);color:#d9e5cf;font:9px/1.6 ui-monospace,monospace;letter-spacing:.7px}.record-dot{display:inline-block;background:#ed895f;width:6px;height:6px;margin-right:7px;border-radius:50%}.replay-task{padding:20px 24px;border-bottom:1px solid var(--line);font-size:13px}.replay-output{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.9 ui-monospace,monospace;min-height:180px;padding:24px;margin:0}.replay-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:20px 24px;border-top:1px solid var(--line)}.replay-controls label{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:8px}.replay-controls select{padding:7px;background:var(--paper);border:1px solid var(--line);font-size:11px;color:var(--ink)}#replay-status{font:10px/1.6 ui-monospace,monospace;color:var(--muted);margin-left:auto}.interface-examples{display:grid;grid-template-columns:1fr 1fr;gap:25px}.interface-examples>div{min-width:0}.doc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding-bottom:50px}.doc-group{border-top:1px solid var(--ink);padding-top:20px}.doc-group>.index{display:block;margin-bottom:15px}.doc-group a{display:flex;justify-content:space-between;gap:15px;text-decoration:none;border-bottom:1px solid var(--line);padding:16px 0;font-size:13px}.muted{color:var(--muted);font-size:13px}[lang=zh-CN] h1{letter-spacing:-2px;line-height:1.22}[lang=zh-CN] .hero h1{font-size:clamp(48px,5.2vw,73px)}[lang=zh-CN] .hero h1 span{font-size:1em}[lang=zh-CN] h2{letter-spacing:-.8px;line-height:1.3}@media(min-width:1450px){.wrap{padding:0 65px}.hero{gap:85px}}@media(max-width:1000px){.hero{gap:35px}.hero h1{font-size:52px}.navlinks{gap:17px}.loop-nodes>div{min-width:50px}.loop-title{font-size:8px;letter-spacing:0}.loop-title span{font-size:6px}.feedback{font-size:7px}.milestones strong{font-size:37px}.milestones strong span{font-size:18px}.sectionhead{gap:40px}.install{gap:30px}.footlinks{gap:15px}.architecture-wide{gap:40px}}@media(max-width:760px){.wrap{padding:0 23px}nav{min-height:116px;align-items:flex-start;flex-direction:column;justify-content:center;gap:14px}.brand{font-size:22px}.navlinks{gap:14px;font-size:10px;width:100%}.navlinks .github{padding:3px 7px;margin-left:auto}.hero{grid-template-columns:1fr;padding:48px 0 55px;gap:42px}.hero-copy{max-width:550px}.hero h1{font-size:clamp(46px,10vw,66px);letter-spacing:-2.8px}.hero h1 span{font-size:.91em}.lead{font-size:16px}.hero-meta{font-size:9px}.architecture-visual{max-width:550px;width:100%;box-shadow:9px 9px 0 #e4e7dc}.loop-title{font-size:9px}.loop-title span{font-size:7px}.loop-nodes>div{min-width:60px}.feedback{font-size:8px}.strap{gap:10px 15px;font-size:8px}.strap span{width:46%}.section{padding:45px 0}.sectionhead,.install,.architecture-wide,.demo-teaser,.demo-split{grid-template-columns:1fr;gap:25px}.sectionhead{margin-bottom:25px}h2{font-size:32px}.sectionhead>p{font-size:13px}.capabilities{grid-template-columns:1fr}.capability,.capability+.capability{padding:24px 0 8px;border-left:0;border-bottom:1px solid var(--line)}.capability h3{max-width:none}.milestones{grid-template-columns:1fr}.milestones>a,.milestones>a+a{border-left:0;padding:23px 0;border-bottom:1px solid var(--line)}.milestones>a:last-child{border-bottom:0}.milestones strong{font-size:45px}.milestones strong span{font-size:24px}.milestones>a>span{font-size:13px}.milestones small{font-size:10px}.closing{padding:50px 0 60px}.closing h2{font-size:36px}footer{flex-direction:column;gap:17px}.footlinks{flex-wrap:wrap;gap:22px}.page-heading{padding:45px 0}.page-heading h1{font-size:45px;letter-spacing:-2.5px}.page-heading .lead{font-size:15px}.architecture-wide{padding-bottom:45px}.stage-tabs button{font-size:9px;padding:15px 5px}.stage-panel{padding:23px;min-height:320px}.milestone-detail{grid-template-columns:1fr;gap:10px}.milestone-detail>.index{padding-top:0}.demo-split{padding-top:0}.interface-examples,.doc-grid{grid-template-columns:1fr}.doc-grid{gap:30px}.replay-output{font-size:12px;padding:20px;min-height:210px}.replay-controls{padding:18px}.replay-controls .button{padding:10px 14px;font-size:11px}#replay-status{margin-left:0;flex-basis:100%}.replay-head{font-size:8px}.demo-metrics strong{font-size:25px}[lang=zh-CN] .hero h1{font-size:clamp(47px,10vw,65px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Product capability matrix and explicitly illustrative Phase 3 allocation. */
.table-scroll{overflow-x:auto}.capability-table{border-collapse:collapse;width:100%;text-align:left;font-size:13px}.capability-table th,.capability-table td{padding:17px 20px 17px 0;border-bottom:1px solid var(--line);vertical-align:top}.capability-table thead th{color:var(--accent);font:10px ui-monospace,monospace}.capability-table tbody th{font-weight:550;min-width:180px}.capability-table td{color:var(--muted)}.budget-demo{padding:28px;background:var(--soft);border:1px solid var(--line)}.budget-control{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:28px;font-size:13px}.budget-control input{flex:1;min-width:120px;accent-color:var(--accent)}.budget-control output{font:13px ui-monospace,monospace}.budget-row{display:grid;grid-template-columns:100px repeat(3,minmax(0,1fr));gap:12px;margin-bottom:12px;align-items:center}.budget-row strong{font-size:12px;font-weight:500}.budget-cell{padding:13px;border:1px solid var(--line);color:var(--muted);font:12px ui-monospace,monospace;text-align:center}.budget-cell.selected{background:var(--forest);color:var(--paper);border-color:var(--forest)}input:focus-visible{outline:3px solid var(--accent);outline-offset:5px}@media(max-width:760px){.capability-table{font-size:11px}.capability-table th,.capability-table td{padding-right:14px}.capability-table tbody th{min-width:136px}.budget-demo{padding:18px}.budget-row{grid-template-columns:70px repeat(3,minmax(0,1fr));gap:6px}.budget-row strong{font-size:10px}.budget-cell{font-size:10px;padding:12px 4px}.budget-control{gap:10px}.budget-control label{flex-basis:100%}.hero h1{overflow-wrap:anywhere}}
