/* A local, document-first knowledge wiki. The optional graph is styled separately. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.source-disclosure summary,.index-references summary{font-size:12px;color:var(--accent);cursor:pointer}.source-disclosure[open] summary{margin-bottom:22px}.index-references{margin-top:20px;font-size:12px}
:root{--ink:#172b3a;--body:#344854;--muted:#657680;--line:#e7ecef;--soft:#f6f8f9;--accent:#006f78;--accent-soft:#eaf4f4;--font:"Segoe UI Variable Text","Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;--text-size:16px;--header:66px;--nav:248px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;background:#fff;color:var(--ink);font:14px/1.7 var(--font);-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #16868f80;outline-offset:3px}[hidden]{display:none!important}::selection{background:#cce8e9;color:var(--ink)}h1,h2,h3{font-weight:630;letter-spacing:-.025em;color:var(--ink);text-wrap:pretty}p,h1,h2,h3,figure{margin-top:0}img{max-width:100%;height:auto}.skip{position:fixed;left:20px;top:-100px;background:var(--ink);color:white;padding:10px 18px;z-index:100}.skip:focus{top:6px}
.wiki-header{height:var(--header);position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:24px;padding:0 28px;z-index:30}.brand{display:flex;align-items:center;gap:13px;color:var(--ink);font-size:16px;font-weight:650;min-width:196px;letter-spacing:-.02em}.brand-mark{width:25px;height:27px;border:1.5px solid var(--accent);border-radius:2px 6px 6px 2px;position:relative}.brand-mark:after{content:"";position:absolute;left:5px;top:0;bottom:0;border-left:1px solid var(--accent)}.brand small{display:block;font-size:10px;color:var(--muted);font-weight:400;letter-spacing:.06em}.search-trigger{margin-left:28px;max-width:420px;width:35vw;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:8px 12px;background:var(--soft);border:1px solid var(--line);border-radius:5px;color:var(--muted);font-size:12px}.search-trigger kbd{font:10px var(--font);padding:2px 5px;border:1px solid #d8e1e5;border-radius:3px;color:#73828b;background:white}.header-link{margin-left:auto;font-size:12px;color:var(--muted);white-space:nowrap}.icon-button{border:1px solid var(--line);border-radius:3px;background:white;color:var(--ink);padding:6px 10px;font-size:12px;min-height:34px}.menu-toggle,.nav-close{display:none}.layout{display:grid;grid-template-columns:var(--nav) minmax(0,1fr);max-width:1680px;margin:auto;min-height:calc(100vh - var(--header))}.wiki-nav{position:sticky;top:var(--header);height:calc(100vh - var(--header));overflow:auto;padding:30px 20px 24px 28px;border-right:1px solid var(--line);scrollbar-width:thin}.nav-group{margin-bottom:25px}.nav-group h2{font-size:11px;letter-spacing:.04em;margin:0 0 9px;padding-left:10px;color:var(--muted);font-weight:600}.nav-group a{display:flex;align-items:start;gap:6px;padding:7px 10px;margin:2px 0;color:#465b67;border-radius:4px;font-size:12px;line-height:1.7}.nav-group a:hover{background:var(--soft);text-decoration:none}.nav-group a[aria-current=page]{color:var(--accent);background:var(--accent-soft);font-weight:600}.nav-group a small{margin-left:auto;color:var(--muted);font-size:10px;font-weight:400;padding-top:2px}.nav-footer{border-top:1px solid var(--line);padding:18px 10px;font-size:11px;color:var(--muted)}.nav-footer a{display:block;margin-top:6px}.document-layout{display:grid;grid-template-columns:minmax(0,780px) 164px;justify-content:center;gap:54px;padding:38px 42px 70px;min-width:0}.document{min-width:0}.breadcrumb{font-size:11px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;margin-bottom:27px}.breadcrumb a{color:var(--muted)}.page-kind{color:var(--accent);font-size:11px;font-weight:600;letter-spacing:.09em;margin-bottom:11px}.document h1{font-size:clamp(28px,2.8vw,38px);line-height:1.45;margin:0 0 20px;letter-spacing:-.04em}.description{font-size:17px;line-height:1.95;color:var(--body);margin-bottom:18px}.page-meta{font-size:11px;color:var(--muted);margin-bottom:27px;line-height:1.9}.page-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:34px;font-size:11px}.page-actions a{color:var(--muted)}.page-body{font-size:var(--text-size);line-height:1.95;color:var(--body)}.wiki-section{padding:29px 0 32px;border-top:1px solid var(--line);scroll-margin-top:90px}.wiki-section h2{font-size:23px;line-height:1.55;margin-bottom:20px}.wiki-section h3{font-size:17px;line-height:1.6}.wiki-section p{margin-bottom:17px}.wiki-section ul{padding-left:1.3em}.wiki-section li{margin:9px 0}.note{border-left:2px solid #80afb4;padding:2px 0 2px 17px;margin:22px 0;color:#516773;font-size:14px;line-height:1.9}.note p:last-child{margin:0}.link-list{list-style:none!important;padding:0!important;margin:0}.link-item{padding:15px 0!important;margin:0!important;border-bottom:1px solid var(--line)}.link-item:last-child{border-bottom:0;padding-bottom:0!important}.link-item:first-child{padding-top:0!important}.link-item>a{color:var(--ink);font-size:16px;font-weight:600;display:inline-block;line-height:1.8}.link-item>a:hover{color:var(--accent)}.link-item p{font-size:13px;color:var(--muted);line-height:1.9;margin:5px 0 0}.link-item small{display:block;font-size:10px;color:var(--accent);margin-bottom:4px;letter-spacing:.02em}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}.topic-grid .link-item{border-bottom:1px solid var(--line);padding:14px 0!important}.topic-grid .link-item>a{font-size:15px}.topic-grid .link-item p{font-size:12px}.claim{padding:18px 0}.claim:first-child{padding-top:0}.claim-label{font-size:11px;font-weight:600;color:var(--accent);letter-spacing:.02em;margin-bottom:7px}.claim p{margin:0;font-size:var(--text-size)}.page-tags{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0}.page-tags a{font-size:11px;color:var(--accent);background:var(--soft);padding:3px 8px;border-radius:3px}.wiki-images{display:grid;gap:24px;margin:18px 0}.wiki-images figure{margin:0}.wiki-images img{display:block;background:var(--soft);border:1px solid var(--line);max-height:520px;width:100%;object-fit:contain}.wiki-images figcaption{font-size:11px;color:var(--muted);line-height:1.7;margin-top:7px}.image-disclosure{margin:18px 0;font-size:13px}.image-disclosure summary{color:var(--accent);cursor:pointer}.resource-links{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:13px;margin:15px 0}.resource-links a{overflow-wrap:anywhere}.backlinks{padding:27px 0 0;border-top:1px solid var(--line);margin-top:8px}.backlinks h2{font-size:14px;margin:0 0 14px}.backlinks .link-item>a{font-size:13px;font-weight:500}.backlinks .link-item p{font-size:11px}.backlinks summary{font-size:12px;color:var(--muted);cursor:pointer;margin:16px 0}.page-footer{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:36px}.wiki-toc{position:sticky;top:104px;align-self:start;font-size:11px;max-height:calc(100vh - 128px);overflow:auto;scrollbar-width:thin}.wiki-toc h2{font-size:11px;letter-spacing:.03em;margin:0 0 15px;color:var(--muted)}.wiki-toc nav{border-left:1px solid var(--line);margin-bottom:24px}.wiki-toc nav a{display:block;color:var(--muted);padding:6px 0 6px 13px;border-left:2px solid transparent;margin-left:-1px;line-height:1.8}.wiki-toc nav a[aria-current=location]{border-left-color:var(--accent);color:var(--accent)}.toc-tools{display:flex;gap:6px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--line)}.toc-tools .icon-button{font-size:11px}.wiki-toc .scope{color:var(--muted);line-height:1.9;margin-top:20px}.mobile-outline{display:none}.focus-reading .wiki-nav,.focus-reading .wiki-toc{display:none}.focus-reading .layout{grid-template-columns:1fr}.focus-reading .document-layout{grid-template-columns:minmax(0,760px);padding-top:38px}.focus-reading .mobile-outline{display:block}.focus-exit{position:fixed;right:22px;bottom:22px;z-index:40;background:var(--ink);color:white;border:0;padding:10px 17px;font-size:12px;border-radius:4px}.focus-reading .search-trigger{margin-left:28px}.nav-scrim{display:none}
.search-dialog{border:1px solid #d6e2e6;border-radius:9px;width:min(660px,calc(100% - 32px));max-height:min(72vh,650px);margin:13vh auto 0;padding:0;box-shadow:0 20px 90px #12293633;color:var(--ink);overflow:hidden}.search-dialog::backdrop{background:#172b3a55;backdrop-filter:blur(2px)}.search-input-row{display:flex;gap:12px;align-items:center;padding:15px 18px;border-bottom:1px solid var(--line)}.search-input-row input{border:0;outline:0;min-width:0;flex:1;font-size:15px;background:#fff;color:var(--ink);padding:5px}.search-input-row button{border:1px solid var(--line);background:var(--soft);color:var(--muted);border-radius:3px;font-size:10px;padding:4px 7px}.search-results{max-height:48vh;overflow:auto;padding:8px}.search-result{display:block;color:var(--ink);border-radius:5px;padding:12px 13px;line-height:1.6}.search-result:hover,.search-result:focus{background:var(--accent-soft);text-decoration:none}.search-result small{display:block;font-size:10px;color:var(--accent);margin-bottom:4px}.search-result strong{font-size:14px;font-weight:600}.search-result p{font-size:11px;color:var(--muted);margin:5px 0 0}.search-hint{font-size:11px;color:var(--muted);padding:11px 18px;border-top:1px solid var(--line)}.search-empty{font-size:13px;color:var(--muted);padding:24px}.local-banner{font-size:11px;line-height:1.9;color:var(--muted);margin-bottom:20px}.collection-filter{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}.collection-filter a{font-size:12px;padding:4px 9px;background:var(--soft);border-radius:3px}
@media(min-width:1450px){.document-layout{padding-top:48px;gap:64px}}
@media(max-width:1180px){:root{--nav:220px}.document-layout{grid-template-columns:minmax(0,780px);padding:32px 40px 60px}.wiki-toc{display:none}.mobile-outline{display:block;font-size:12px;margin:22px 0;color:var(--muted)}.mobile-outline summary{cursor:pointer;color:var(--accent)}.mobile-outline nav{display:flex;gap:10px 16px;flex-wrap:wrap;margin-top:12px}.mobile-outline .toc-tools{margin-top:16px}.search-trigger{margin-left:0}.brand{min-width:170px}.wiki-nav{padding-left:18px}}
@media(max-width:760px){:root{--header:60px}.wiki-header{padding:0 16px;gap:12px}.brand{font-size:14px;min-width:0;gap:9px}.brand-mark{width:19px;height:22px}.brand small{font-size:9px}.search-trigger{margin-left:auto;width:auto;border:0;background:transparent;padding:6px;font-size:12px}.search-trigger span{font-size:0}.search-trigger span:after{content:"搜索";font-size:12px}.search-trigger kbd,.header-link{display:none}.menu-toggle{display:block;font-size:15px;min-width:34px}.layout{display:block}.wiki-nav{display:none}.nav-open .wiki-nav{display:block;position:fixed;z-index:50;left:0;top:0;height:100dvh;width:280px;padding:20px 18px;background:white;border-right:1px solid var(--line)}.nav-open .nav-scrim{display:block;position:fixed;inset:0;background:#172b3a44;border:0;z-index:45}.nav-close{display:block;margin:0 0 23px auto}.document-layout{display:block;padding:27px 21px 50px}.document h1{font-size:29px;line-height:1.5}.description{font-size:16px}.breadcrumb{margin-bottom:22px}.page-actions{margin-bottom:22px;gap:14px}.wiki-section{padding:25px 0}.wiki-section h2{font-size:21px}.topic-grid{grid-template-columns:1fr;gap:0}.topic-grid .link-item{padding:15px 0!important}.link-item>a{font-size:15px}.focus-reading .document-layout{padding:27px 21px 50px}.focus-reading .search-trigger{margin-left:auto}.wiki-toc{display:none}.search-dialog{margin-top:8vh;max-height:82vh}.search-results{max-height:60vh}.wiki-images img{max-height:400px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.wiki-header,.wiki-nav,.wiki-toc,.mobile-outline,.page-actions,.focus-exit,.search-dialog{display:none!important}.layout,.document-layout{display:block;padding:0}.document{max-width:none}.page-body{font-size:11pt}.document h1{font-size:24pt}.wiki-section{break-inside:avoid}details{display:block}a{color:inherit}.wiki-images img{max-height:260px}}