:root{color-scheme:light;--paper:#f6f4ef;--ink:#263333;--muted:#68716c;--line:#dcded5;--accent:#a94c29;--sage:#e8ece4;--white:#fff;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 var(--font)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #a94c29;outline-offset:4px}[hidden]{display:none!important}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 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/* Overall system first; paper internals stay behind disclosure. */
.system-map{margin:0;background:#fff;border:1px solid var(--line)}.system-map>button{display:block;padding:0;border:0;width:100%;background:#fff;cursor:zoom-in}.system-map img{display:block;width:100%;height:auto}.system-map figcaption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding:10px 18px;color:var(--muted);font-size:13px}.map-note{font-size:14px;color:var(--muted);margin:13px 0 20px}.module-nav{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin:20px 0 0}.module-nav button{text-align:left;border:1px solid var(--line);background:transparent;padding:12px 10px;font-size:14px;overflow-wrap:anywhere}.module-nav button span{display:block;color:var(--muted);font-size:13px}.module-nav button[aria-pressed=true]{border-color:var(--accent);background:#fff;box-shadow:inset 0 3px var(--accent)}.module-detail{background:#fff;border:1px solid var(--line);padding:25px 28px;margin:14px 0 24px}.module-detail h2{font-size:23px}.module-detail .module-summary{max-width:900px;margin:12px 0 18px}.module-detail h3{font-size:16px;margin:0 0 5px}.module-detail p{margin:0 0 14px}.module-io{display:grid;grid-template-columns:1fr 1fr;gap:25px;padding:18px 0;border-top:1px solid var(--line)}.module-io p{color:var(--muted);margin:0;font-size:15px}.module-connections{padding-top:17px;border-top:1px solid var(--line)}.module-connections p{font-size:15px}.module-detail details{border-top:1px solid var(--line)}.module-detail summary{cursor:pointer;padding:13px 0;font-size:15px}.module-detail details>div{padding:2px 0 15px}.module-detail .paper summary{grid-template-columns:1fr 18px;gap:8px}.module-detail .paper-question{grid-column:1;grid-row:2}.module-detail .paper-year{display:none}.module-detail .paper summary:after{grid-column:2;grid-row:1/3}.module-links{display:flex;gap:15px;flex-wrap:wrap;font-size:14px}.extension-link{display:block;background:none;border:0;text-align:left;padding:8px 0;font-size:15px;color:var(--accent)}.system-position{border-top:1px solid var(--line)}.system-position summary,.architecture-deep>summary{padding:16px 0;cursor:pointer;font-weight:550}.system-position>div{max-width:950px;padding:0 0 18px}.system-position p{margin:0 0 12px;font-size:15px}.system-position a{font-size:14px}.architecture-deep{border-top:1px solid var(--line);margin-top:14px}.architecture-inner{padding:10px 0}.system-position ul{padding-left:22px}.system-position li{margin:10px 0;font-size:15px}.module-detail .empty{padding:0}.paper[data-paper-focus]{scroll-margin-top:24px}
@media(max-width:1050px){.module-nav{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.module-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.module-detail{padding:20px 17px}.module-io{grid-template-columns:1fr;gap:17px}.system-map{overflow:auto}.system-map>button{min-width:650px}.system-map figcaption{font-size:13px}.module-detail h2{font-size:21px}}