@charset "UTF-8";
:root{--paper:#f5f3ec;--surface:#fffdf7;--ink:#233c38;--muted:#63736a;--line:#d8ded2;--accent:#986431;--deep:#173b39;--wash:#e8ede2;--body-size:18px;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:var(--body-size);line-height:1.9;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #b48c47;outline-offset:4px}button{border:1px solid var(--line);background:var(--surface);border-radius:4px;padding:8px 14px;min-height:44px}button:hover{background:var(--wash)}[hidden]{display:none!important}h1,h2,h3,h4{line-height:1.4;text-wrap:pretty}h1,h2,h3{font-weight:650}p{margin:1em 0}img,svg{max-width:100%;height:auto}.sitebar{height:68px;position:relative;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1160px)/2));border-bottom:1px solid var(--line);font-size:13px;background:var(--paper)}.sitebar a{text-decoration:none}.wordmark{font-weight:750;letter-spacing:1px}.wordmark span{font-size:12px;font-weight:450;letter-spacing:0;margin-left:8px}.library{max-width:1160px;margin:auto;padding:0 28px}.hero{padding:76px 0 42px}.eyebrow{font-size:12px;letter-spacing:1.8px;color:var(--accent);font-weight:650;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.hero h1{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:76px;line-height:1.25;margin:21px 0 15px;letter-spacing:1px}.hero>p{font-size:25px;margin:0;color:var(--muted)}.hero-line{height:1px;background:var(--line);margin:40px 0 18px}.hero-bottom{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.editor-note{display:flex;gap:18px;padding:24px 0 32px;border-bottom:1px solid var(--line)}.editor-note p{margin:6px 0;font-size:15px;color:var(--muted)}.editor-note strong{font-size:19px}.editor-note a{font-size:14px;color:var(--accent)}.dot{flex:none;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:14px}.featured{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:38px 0 58px}.featured>a{display:block;background:var(--surface);padding:28px;text-decoration:none;transition:background .2s}.featured>a:first-child{background:var(--deep);color:#f3f0df}.featured>a:hover{background:var(--wash)}.featured>a:first-child:hover{background:#224d47}.featured span{font-size:11px;letter-spacing:1px;opacity:.65}.featured h2{font-family:"Songti SC",serif;font-size:26px;font-weight:600;margin:20px 0 10px}.featured p{font-size:14px;opacity:.75;min-height:54px}.featured b{font-size:13px;font-weight:500}.section-title{display:flex;justify-content:space-between;align-items:center}.section-title h2{font-size:27px;margin:0}.section-title>span{font-size:13px;color:var(--muted)}.search-label{display:block;font-size:12px;margin:20px 0 7px;color:var(--muted)}.search-box{display:flex;align-items:center;border-bottom:1px solid var(--ink);gap:12px;padding:6px 0}.search-box>span{font-size:30px}.search-box input{border:0;background:transparent;min-width:0;flex:1;font-size:17px;padding:10px 0;color:var(--ink);outline:none}.search-box button{border:0;background:transparent;font-size:24px}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 26px}.filters button{border:0;background:transparent;font-size:13px;min-height:38px;border-radius:30px;padding:6px 18px}.filters .selected{background:var(--deep);color:#fff}.article-list{display:grid;grid-template-columns:1fr 1fr;column-gap:40px}.article-row{display:block;text-decoration:none;padding:28px 0;border-top:1px solid var(--line)}.article-row:hover h3{color:var(--accent)}.row-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:var(--muted)}.tag{display:inline-block;font-size:11px;font-weight:500;letter-spacing:0;padding:3px 9px;background:var(--wash);color:var(--muted);line-height:1.6}.tag.caution{background:#f0e6d6;color:#875b2b}.article-row h3{font-size:21px;margin:13px 0 7px}.article-row p{font-size:15px;color:var(--muted);margin:0 0 13px}.row-foot{font-size:11px;display:flex;justify-content:space-between;color:var(--muted)}.row-foot>span{color:var(--accent)}.scope{padding:36px 0;border-top:1px solid var(--line);margin-top:32px}.scope h2{font-size:21px}.scope p{max-width:780px;color:var(--muted);font-size:15px}.scope a{font-size:14px;color:var(--accent)}.footer{max-width:1160px;margin:28px auto 0;padding:30px 28px 110px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.footer>a{font-size:14px;color:var(--accent)}.reading{max-width:900px;margin:0 auto;padding:30px 32px 0}.backlink{font-size:12px;color:var(--muted);text-decoration:none}.article-head{padding:30px 0;border-bottom:1px solid var(--line);margin-bottom:30px}.article-head h1{font-family:"Songti SC",serif;font-size:42px;line-height:1.4;margin:18px 0}.lede{color:var(--muted);font-size:19px;line-height:1.85}.byline{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:22px}.byline button{font-size:12px;min-height:34px;padding:4px 8px;border:0;color:var(--accent);background:transparent}.status-note{border-left:3px solid #b68444;background:#eee7d9;padding:20px 24px;margin:28px 0 38px;color:#644b31;font-size:15px}.status-note strong{font-size:17px}.status-note p{margin:8px 0 0}.reading article{overflow-wrap:anywhere}.reading article h2{font-size:29px;border-top:1px solid var(--line);padding-top:32px;margin:48px 0 20px}.reading article h3{font-size:23px;margin:32px 0 14px}.reading article h4{font-size:19px;margin:26px 0 10px}.reading article h5{font-size:18px}.reading article p{margin:16px 0}.reading article li{margin:9px 0}.reading article ul,.reading article ol{padding-left:1.4em}.reading article a{color:var(--accent)}.reading article strong,.reading article b{font-weight:650}.reading article blockquote{margin:24px 0;padding:1px 22px;border-left:3px solid #9da991;color:var(--muted);font-size:16px}.reading article small,.private-ref,.muted,.fine,.note,.boundary{color:var(--muted)}.private-ref{font-size:11px}.reading article code{font-size:.82em;background:var(--wash);border-radius:3px;padding:2px 5px;word-break:break-word}.reading article pre{max-width:100%;overflow:auto;padding:20px;background:#e8ede3;line-height:1.6;border:1px solid var(--line);font-size:14px;white-space:pre-wrap}.reading article pre code{background:none;padding:0}.table-wrap{max-width:100%;overflow-x:auto;margin:26px 0}table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.8}th{text-align:left;padding:12px;border-bottom:2px solid var(--ink);font-size:13px;font-weight:600}td{vertical-align:top;padding:14px 12px;border-bottom:1px solid var(--line)}td:first-child{font-weight:600}details.review{border-top:1px solid var(--line);padding:15px 0}summary{cursor:pointer;font-size:18px;font-weight:600;min-height:44px;padding:8px 0}details.review[open]{padding-bottom:24px}details.review>h2{font-size:25px}.reading-tools{position:fixed;bottom:0;left:0;right:0;z-index:50;display:flex;justify-content:center;gap:16px;padding:9px 18px calc(9px + env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -4px 16px #102d3010}.reading-tools a,.reading-tools button{font-size:13px;min-height:42px;border:0;background:transparent;padding:8px 15px;text-decoration:none}.reading-tools a{display:flex;align-items:center;color:var(--accent)}.progress{position:fixed;top:0;left:0;z-index:60;height:3px;background:var(--accent);width:0;transition:width .1s}dialog#contents{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:8px;width:min(620px,calc(100vw - 28px));max-height:82dvh;padding:0;box-shadow:0 25px 120px #0005}dialog::backdrop{background:#112b2a99;backdrop-filter:blur(3px)}.dialog-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;background:var(--paper);padding:16px 22px;border-bottom:1px solid var(--line);z-index:2}.dialog-head button{border:0;background:transparent;font-size:24px}.dialog-head strong{font-size:18px}#contents nav{padding:4px 22px 24px}#contents a{display:block;text-decoration:none;font-size:15px;line-height:1.6;padding:14px 0;border-bottom:1px solid var(--line)}.related{margin:45px 0 25px;border-top:1px solid var(--line);padding-top:20px}.related h2{font-size:20px}.related a{font-size:15px;display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid var(--line);text-decoration:none}.kicker,.number{font-size:12px;color:var(--accent)}.refs{font-size:12px}.source-id{font-weight:650;color:var(--accent)}.case,.scene,.callout,.mechanism,.note,.boundary,.takeaway,.verdict-grid>div,.stat{padding:18px 20px;background:var(--wash);margin:20px 0;border-left:2px solid #98ab91}.section-head .number{margin-top:30px}.section-head h2{margin-top:10px}.analysis-pair,.verdict-grid,.stats,.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.analysis-pair>*{min-width:0}.stat strong{display:block;font-size:25px}.stat p{font-size:15px}.calculator,#cost-form{padding:24px;background:var(--deep);color:#f2f0df;margin:28px 0}.calculator h3{color:#fff}.calculator p{font-size:14px;color:#c5d5c7}.calculator fieldset{border:1px solid #66847a;min-width:0;padding:16px;margin:14px 0}.calculator legend{font-size:14px;color:#bbd2c1}.calc-grid,.calc-results,.cost-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.calculator label,#cost-form label{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:14px;margin:12px 0}.calculator input,#cost-form input{width:92px;min-width:0;border:1px solid #78988a;background:#2e534a;color:white;padding:8px}.calculator button,#cost-form button{color:#eff3e5;border-color:#6d8b7b;background:#294d46;font-size:13px}.calc-results>div{border-top:1px solid #6a877b;padding:16px 0}.calc-results span{font-size:12px;display:block;color:#c1d4c4}.calc-results output{font-size:30px;color:#e8c08c;font-weight:600}.calc-results .negative{color:#ffb497}.calculator .fine{color:#b5cbbb}.calculator .calc-formula{font-size:13px}.screen-model,.architecture{padding:22px;border:1px solid var(--line);margin:28px 0}.screen-pair,.world-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mock,.node,.coordinator,.gateway{padding:18px;border:1px solid var(--line);background:var(--surface)}.mock-top{display:flex;justify-content:space-between;font-size:14px}.mock-scene>span,.mock-status span,.node span,.world-pair span{display:block;font-size:13px;color:var(--muted)}.mock-actions{display:flex;justify-content:space-around;font-size:12px;background:var(--wash);margin:10px 0}.mock-input{font-size:12px;border:1px solid var(--line);padding:10px}.flow-row{display:flex;align-items:stretch;gap:12px}.flow-row .node{flex:1;min-width:0}.arrow{display:flex;align-items:center;font-size:15px}.vertical-arrow,.shared,.bridge-note,.storage-note,.return,.intervention{font-size:13px;text-align:center;margin:15px 0;color:var(--muted)}.world-pair{margin:16px 0}.earth,.heaven{padding:18px;background:#eadeca}.heaven{background:#d8e7de}figcaption{font-size:16px;margin:0 0 18px}figcaption small{display:block;font-size:12px;margin-top:5px}.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.steps span{display:block;font-size:14px}.search-controls,.filters-row,.catalog-tools{display:flex;gap:12px;flex-wrap:wrap}#search,#category{border:1px solid var(--line);background:var(--surface);color:var(--ink);max-width:100%;min-height:44px;padding:8px 12px}body.large{--body-size:21px}body.night{--paper:#142b29;--surface:#1c3631;--ink:#e2e7d7;--muted:#a2b8a8;--line:#375048;--accent:#d8b077;--deep:#102722;--wash:#213c34;color-scheme:dark}body.night .tag.caution,body.night .status-note{background:#443c2d;color:#dfc397}body.night .reading article pre{background:#203b33}body.night .earth{background:#423b2e}body.night .heaven{background:#28483d}
@media(max-width:700px){.sitebar{height:56px;padding:0 20px}.wordmark span{font-size:11px;margin-left:4px}.library{padding:0 22px}.hero{padding:45px 0 27px}.hero h1{font-size:48px;margin-top:18px}.hero>p{font-size:18px}.eyebrow{font-size:10px;letter-spacing:1.2px}.hero-line{margin:30px 0 14px}.hero-bottom{font-size:10px;gap:16px;align-items:start}.hero-bottom span:last-child{white-space:nowrap}.editor-note{padding:18px 0 25px;gap:12px}.editor-note strong{font-size:17px}.editor-note p{font-size:14px;line-height:1.8}.featured{display:block;margin:27px 0 38px}.featured>a{padding:24px 22px;border-top:1px solid var(--line)}.featured>a:first-child{border:0}.featured h2{font-size:25px;margin:10px 0}.featured h2 br{display:none}.featured p{min-height:0;margin:6px 0 14px}.section-title h2{font-size:24px}.search-box input{font-size:15px}.filters{flex-wrap:nowrap;overflow:auto;margin-right:-22px;padding-right:22px;gap:4px;scrollbar-width:none}.filters button{flex:none;padding:6px 14px;font-size:12px}.article-list{display:block}.article-row{padding:23px 0}.article-row h3{font-size:20px;line-height:1.5}.article-row p{font-size:14px;line-height:1.8}.reading{padding:22px 22px 0}.article-head{padding:24px 0;margin-bottom:24px}.article-head h1{font-size:32px;line-height:1.45;margin:18px 0}.lede{font-size:17px;line-height:1.85}.byline{font-size:11px;gap:12px}.status-note{padding:16px 18px;font-size:14px;margin:24px 0 32px}.status-note strong{font-size:16px}.reading article h2{font-size:25px;padding-top:25px;margin-top:36px;line-height:1.5}.reading article h3{font-size:21px;line-height:1.55}.reading article h4{font-size:18px}.reading article p{margin:18px 0}.reading article ul,.reading article ol{padding-left:1.15em}.reading article blockquote{padding-left:16px;font-size:16px}.reading article pre{font-size:13px;padding:14px}.reading-tools{gap:0;justify-content:space-between;padding-left:8px;padding-right:8px}.reading-tools button,.reading-tools a{font-size:12px;padding:8px 12px}.table-wrap{overflow:visible;margin:22px 0}table,tbody,tr,td{display:block;width:auto}thead{display:none}tr{border-top:2px solid #78917a;padding:8px 0 12px;margin:24px 0}td{border-bottom:1px solid var(--line);padding:10px 0;font-size:16px;line-height:1.9}td:first-child{font-size:18px;font-weight:650}td:last-child{border-bottom:0}td::before{content:attr(data-label);display:block;font-size:11px;color:var(--muted);font-weight:400;line-height:1.5;margin-bottom:5px}td:first-child::before{display:none}.analysis-pair,.verdict-grid,.stats,.stat-grid,.calc-grid,.screen-pair,.world-pair{grid-template-columns:1fr;gap:8px}.case,.scene,.callout,.mechanism,.note,.boundary,.takeaway,.verdict-grid>div,.stat{padding:15px;margin:17px 0}.calculator,#cost-form{padding:20px 15px}.calculator fieldset{padding:12px}.calculator label,#cost-form label{font-size:13px}.calc-results{gap:12px}.calc-results output{font-size:24px}.calc-results span{line-height:1.65;min-height:40px}.flow-row{flex-direction:column}.arrow{align-self:center;transform:rotate(90deg)}.steps{grid-template-columns:1fr}.screen-model,.architecture{padding:15px}.source-id{overflow-wrap:anywhere}.footer{font-size:11px;padding-left:22px;padding-right:22px}.scope h2{font-size:20px}.scope p{font-size:14px}#contents nav{padding:0 18px 22px}#contents a{font-size:14px;padding:14px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.sitebar,.reading-tools,.progress,.backlink,.byline button,#contents,.footer{display:none!important}.reading{max-width:none;padding:0}.reading article{font-size:12pt}details.review{display:block}a{color:inherit!important}.calculator,#cost-form{background:#fff;color:#111}.article-head h1{font-size:28pt}body{background:white;color:black}}