:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#172c29;background:#f3f6f3;font-size:15px;--mint:#49fcd4;--line:#dce5df}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,select,input{font:inherit}button,select{cursor:pointer;border:1px solid var(--line);border-radius:6px;padding:10px 15px;background:white;color:inherit}button:hover{background:#e0f8ef}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #0b9277;outline-offset:4px}p{line-height:1.85}.top{display:flex;justify-content:space-between;align-items:center;padding:24px 5vw;border-bottom:1px solid var(--line)}.brand{font-weight:850;font-size:23px;letter-spacing:-1px}.brand span{font-weight:400;font-size:13px;color:#65766f;letter-spacing:0}.badge{font-size:12px;border:1px solid #bad8cd;border-radius:20px;padding:7px 12px;color:#376653}main{max-width:1520px;margin:auto;padding:42px 5vw 24px}.intro{display:flex;justify-content:space-between;gap:28px;align-items:center;margin-bottom:35px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:#5e8074;margin:0 0 14px}h1{font-size:clamp(32px,3.6vw,53px);line-height:1.25;letter-spacing:-2px;margin:0 0 20px}.lede{color:#62736e;font-size:15px}.intro-aside{border-left:1px solid #cfded5;padding-left:36px;min-width:220px}.intro-aside>span{font-size:37px;color:#94afa4;font-weight:300}.intro-aside p{font-size:13px;color:#60766b}.primary{background:#193e35;color:#fff;border:0;padding:13px 23px}.primary:hover{background:#286250}.stages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:22px}.stages button{padding:20px;text-align:left;border-radius:8px;font-size:18px;font-weight:650;position:relative}.stages small,.stages span{display:block;font-size:10px;letter-spacing:1px;font-weight:400;color:#698174;margin-bottom:10px}.stages span{letter-spacing:0;font-size:12px;margin:8px 0 0}.stages button[aria-pressed=true]{background:#dff7ed;border-color:#289d80;box-shadow:inset 0 3px #269f80}.workspace{display:grid;grid-template-columns:minmax(0,2.3fr) minmax(270px,1fr);gap:20px}.visual{background:#101f28;border-radius:10px;padding:25px;color:#dce9e5;min-width:0}.chart-head{display:flex;align-items:center;justify-content:space-between;gap:15px}.chart-head h2{font-size:20px;margin:0 0 20px}.chart-head>span{font-size:11px;color:#8da7a6}.visual .eyebrow{color:#78aa9e}.controls{display:flex;gap:16px;flex-wrap:wrap;border-bottom:1px solid #2a3d45;padding-bottom:18px;margin-bottom:16px}.controls label{font-size:11px;color:#9db7b5;display:grid;gap:7px;flex:1;min-width:110px}.controls select{background:#1b3039;color:#e0efeb;border-color:#344b52;width:100%;padding:8px;font-size:12px}.controls input{width:100%;accent-color:#49fcd4}.controls output{display:inline}svg{display:block;width:100%;height:auto;overflow:visible}svg text{font-family:inherit}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:10px;color:#a8bfbc;margin:10px 0 20px}.legend i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:6px}.running{background:#49fcd4}.transition{background:#f5bb6c}.low{background:#8299ae}.unknown{background:#bb91c6}.stage-map{border:1px solid #334951;border-radius:6px;padding:14px;font-size:12px;line-height:1.9;color:#cee2de;min-height:74px}.stage-map strong{color:#49fcd4}.chart-summary{color:#96b2ad;font-size:12px;min-height:44px;margin-bottom:15px}.transport{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding-top:16px;border-top:1px solid #2a3d45}.transport button{background:#1a333c;border-color:#314d55;color:#d2e6e1;font-size:12px}.transport span{font:12px monospace;margin:auto}.transport .quiet{background:transparent;border:0;color:#8ca9a3}.explanation{padding:30px;background:white;border:1px solid var(--line);border-radius:10px}.explanation h2{font-size:25px;line-height:1.4;margin:0 0 18px}.explanation p{font-size:13px;color:#667b72}.explanation dt{font-size:11px;color:#87998f;margin-top:22px}.explanation dd{font-size:13px;line-height:1.8;margin:7px 0}.why{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.why h3{font-size:12px}.evidence{margin-top:32px;border:1px solid var(--line);border-radius:10px;padding:28px;background:white}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.section-heading h2{font-size:22px;margin:0}.section-heading>p{font-size:12px;color:#83918c}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}th{color:#7a8b83;font-weight:500;background:#f3f7f3}th,td{padding:12px;border-bottom:1px solid #e4ebe7}.identity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.identity-grid>div{background:#f3f7f3;padding:20px;border-radius:5px}.identity-grid small{display:block;color:#7e9488;margin-bottom:12px}.identity-grid strong{font-size:15px}.detail-note{color:#7c8d82;font-size:12px}.boundary{display:grid;grid-template-columns:1fr 2fr;gap:50px;margin:50px 0;padding:30px 0;border-top:1px solid var(--line)}.boundary h2{font-size:27px;line-height:1.5}.boundary p{color:#61796c;font-size:13px}.boundary .note{font-size:11px;color:#88958e}footer{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;font-size:12px;color:#7b8b82}@media(max-width:1000px){.workspace{grid-template-columns:1fr}.explanation{padding:24px}.intro-aside{min-width:190px;padding-left:22px}}@media(max-width:650px){main{padding:28px 16px}.top{padding:18px 16px}.brand span{display:none}.badge{font-size:10px}.intro{display:block}.intro-aside{border:0;padding:0;display:flex;align-items:center;justify-content:space-between;gap:15px}.intro-aside>span{font-size:24px}.intro-aside p{display:none}.stages{grid-template-columns:1fr 1fr;margin-top:25px}.stages button{padding:15px;font-size:16px}.visual{padding:16px}.chart-head h2{font-size:17px}.controls{gap:10px}.controls label:last-child{flex-basis:100%;grid-template-columns:1fr 70px;align-items:center}.controls input{grid-column:1/-1}.legend{gap:9px}.evidence{padding:18px}.section-heading{display:block}.identity-grid{grid-template-columns:1fr}.boundary{grid-template-columns:1fr;gap:0;margin:30px 0}.boundary h2{font-size:23px}footer span{display:none}}

.controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.controls label{min-width:0}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0 25px}.metrics small{display:block;color:#93aaa9;font-size:10px;margin-bottom:7px}.metrics strong{font-size:16px;color:#d7f2e8;font-weight:500}.curve-legend{display:flex;flex-wrap:wrap;gap:14px;font-size:10px;margin:8px 0 16px;color:#49fcd4}.curve-legend span:nth-child(2){color:#88a9bc}.curve-legend span:nth-child(3){color:#f5bb6c}.evidence .table-wrap{max-height:430px;overflow:auto;margin-top:16px}.evidence th{position:sticky;top:0}@media(max-width:650px){.controls{grid-template-columns:1fr 1fr}.controls label:last-child{display:grid;grid-template-columns:1fr}.controls input{grid-column:auto}.metrics strong{font-size:12px}.metrics small{font-size:9px}.curve-legend{gap:8px}.metrics{gap:6px}}

.zoom-tools{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:18px}.zoom-tools button{background:#1b3039;border-color:#344b52;color:#dce9e5;font-size:12px;padding:8px 12px}.zoom-tools output{font-size:11px;color:#96bfb5;margin-left:auto}.zoom-hint{font-size:10px;color:#8da7a6;margin:10px 0}.pan-control{display:flex;align-items:center;gap:16px;font-size:11px;color:#96b2ad;margin:12px 0 24px}.pan-control input{flex:1;min-width:0;accent-color:#49fcd4}#chart{cursor:grab;user-select:none;touch-action:pan-y}#chart.dragging{cursor:grabbing}@media(max-width:650px){.zoom-tools output{width:100%;margin:4px 0}.zoom-tools button{padding:8px 10px}}

.chart-wrap{position:relative}#chart-tooltip{position:absolute;z-index:2;pointer-events:none;width:235px;max-width:100%;padding:13px 15px;background:#edf9f3;color:#193b32;border:1px solid #9ac4b5;border-radius:7px;box-shadow:0 5px 22px #0005;font-size:12px}#chart-tooltip[hidden]{display:none}#chart-tooltip strong{display:block;font-size:12px;margin-bottom:9px}#chart-tooltip>div{display:flex;justify-content:space-between;gap:12px;line-height:1.9}#chart-tooltip span{color:#5c776d}#chart-tooltip b{font-weight:600}

/* Domain design narrative: deliberately independent of the synthetic chart stages. */
.page-paths{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 26px;border-top:1px solid var(--line);padding-top:20px}.page-paths a{padding:10px 14px;border:1px solid #cbdcd3;border-radius:6px;font-size:12px}.page-paths a:hover{background:#dff7ed}.page-paths span{font-size:10px;color:#26725c;margin-left:10px}#curve-demo,#object-design{scroll-margin-top:24px}.object-story{margin:55px 0 40px;border-top:1px solid var(--line);padding-top:42px}.story-heading{display:grid;grid-template-columns:1.2fr 1fr;gap:35px;align-items:end}.story-heading h2{font-size:clamp(25px,3vw,38px);line-height:1.4;letter-spacing:-1px;margin:0}.story-heading>p{font-size:13px;color:#60766b;margin:0}.story-note{font-size:11px;color:#6d8177;margin:22px 0}.story-overview{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:20px;border-radius:8px;background:#193e35;color:#def4e9;margin:0 0 24px;font-size:12px}.story-overview b{color:#6db79f;font-weight:400}.design-step{border:1px solid var(--line);border-radius:9px;background:#fff;margin:12px 0;overflow:hidden}.design-step>summary{list-style:none;display:flex;align-items:center;gap:22px;cursor:pointer;padding:23px 26px}.design-step>summary::-webkit-details-marker{display:none}.design-step>summary:hover{background:#f0f9f3}.design-step>summary:focus-visible,.design-sources>summary:focus-visible{outline:3px solid #0b9277;outline-offset:-4px}.step-no{font-size:26px;color:#70988a;font-weight:300}.design-step strong{font-size:16px}.design-step summary small{display:block;font-size:11px;color:#798d81;margin-top:7px;line-height:1.6}.expand-hint{margin-left:auto;flex-shrink:0;color:#738f81;font-size:10px}.design-step[open]>summary{background:#e5f4eb;border-bottom:1px solid #d0e5d8}.design-body{display:grid;grid-template-columns:1fr 1.4fr;gap:32px;padding:28px}.design-body>div{min-width:0}.design-body h3{font-size:12px;color:#426956;margin:0 0 8px}.design-body h3:not(:first-child){margin-top:22px}.design-body p{font-size:13px;color:#5c7166;margin:8px 0 16px}.design-body p strong{font-size:inherit;color:#2c5744}.source-ref{font-size:11px;color:#26705a;text-decoration:underline;text-underline-offset:3px}.design-example{background:#f4f8f4;border-radius:7px;padding:22px}.design-example .diagram-label{font-size:10px;letter-spacing:1px;color:#7b9083;margin:0 0 18px}.object-flow{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:10px;align-items:center;margin-bottom:20px}.object-flow>div,.domain-source,.domain-rooms>div{border:1px solid #bcd7c7;border-radius:6px;background:white;padding:16px 12px;text-align:center;min-width:0}.object-flow b,.domain-diagram b{font-size:12px;overflow-wrap:anywhere}.object-flow span,.domain-diagram span{display:block;font-size:11px;line-height:1.8;color:#73887b;margin-top:8px}.object-flow i{font-size:10px;color:#6a917c;font-style:normal}.flow-three{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr) auto minmax(0,1fr)}.design-example .object-limit{border-left:2px solid #72a88d;padding-left:12px;font-size:11px;margin:16px 0 0;color:#637c6c}.domain-diagram>p{text-align:center;font-size:10px;color:#5e8a72}.domain-source{background:#e1f1e6}.domain-rooms{display:grid;grid-template-columns:1fr 1fr;gap:12px}.segment-demo{display:grid;grid-template-columns:1fr .9fr 1.3fr;gap:4px;margin:0 0 18px}.segment-demo>div{background:#d4eee0;padding:18px 10px;border-top:3px solid #448a68}.segment-demo>div:nth-child(2){background:#f5e9d5;border-color:#cb9e50}.segment-demo b{display:block;font-size:12px}.segment-demo span{display:block;font-size:10px;color:#718270;margin-top:10px}.evidence-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}.evidence-chips span{border:1px dashed #a8c2b0;border-radius:4px;padding:6px 8px;font-size:10px;color:#68816f}.story-conclusion{display:flex;justify-content:space-between;align-items:center;gap:22px;margin:26px 0;padding:20px 24px;background:#e4efe5;border-radius:8px}.story-conclusion p{font-size:13px;margin:0;color:#537060}.story-conclusion strong{color:#234d37}.story-conclusion a{font-size:12px;white-space:nowrap;text-decoration:underline}.design-sources{color:#718477;font-size:12px;padding:6px 0 20px}.design-sources summary{cursor:pointer;padding:10px 0}.design-sources li{line-height:1.9;margin:8px 0;scroll-margin-top:24px}.design-sources li:target{background:#dff7ed;color:#204b38}.object-story p,.object-story small{overflow-wrap:anywhere}
@media(max-width:1000px){.design-body{grid-template-columns:1fr;gap:24px}.story-heading{grid-template-columns:1fr;gap:20px}}
@media(max-width:650px){.object-story{margin-top:35px;padding-top:30px}.story-heading h2{font-size:27px}.story-overview{justify-content:flex-start;gap:8px;font-size:11px;padding:16px}.design-step>summary{padding:18px 15px;gap:12px}.step-no{font-size:20px}.design-step strong{font-size:14px}.design-step summary small{font-size:10px}.expand-hint{display:none}.design-step>summary:after{content:'＋';margin-left:auto;color:#6d9281}.design-step[open]>summary:after{content:'－'}.design-body{padding:18px;gap:20px}.design-example{padding:15px}.object-flow,.flow-three{grid-template-columns:1fr}.object-flow i{text-align:center;font-size:0}.object-flow i:after{content:'↓';font-size:14px}.domain-rooms{grid-template-columns:1fr}.segment-demo{grid-template-columns:1fr}.segment-demo>div{display:flex;justify-content:space-between;gap:10px}.segment-demo span{margin:0}.story-conclusion{display:block;padding:18px}.story-conclusion a{display:inline-block;margin-top:16px}.design-sources ul{padding-left:20px}}