:root{
  --link:#3366cc; --link-visited:#795cb2; --border:#a2a9b1; --border-soft:#c8ccd1;
  --bg:#f8f9fa; --content:#ffffff; --text:#202122; --muted:#54595d;
  --serif:'Linux Libertine','Hoefler Text','Georgia','Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;line-height:1.6;}
a{color:var(--link);text-decoration:none;}
a:hover{text-decoration:underline;}
a:visited{color:var(--link-visited);}
.muted{color:var(--muted);}
.redlink{color:#d33;cursor:help;}
.exturl{white-space:normal;word-break:break-word;}
.exturl::after{content:"\2197";font-size:9px;vertical-align:super;color:#72777d;}

.topbar{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:14px;padding:7px 18px;}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--serif);font-size:18px;white-space:nowrap;color:var(--text);}
.brand:hover{text-decoration:none;}
.brand b{font-weight:normal;}
.brand .sub{font-size:11px;color:var(--muted);font-family:var(--sans);}
.searchwrap{position:relative;flex:1;max-width:520px;margin-left:auto;}
#search{width:100%;padding:6px 30px 6px 10px;border:1px solid var(--border);border-radius:2px;font-size:13px;font-family:var(--sans);}
#search:focus{outline:2px solid #a7d7f9;border-color:#36c;}
.searchwrap .mag{position:absolute;right:9px;top:7px;color:var(--muted);font-size:13px;}
#suggest{position:absolute;left:0;right:0;top:34px;background:#fff;border:1px solid var(--border);
  border-top:none;max-height:340px;overflow:auto;display:none;z-index:70;box-shadow:0 6px 14px rgba(0,0,0,.12);}
#suggest a{display:block;padding:7px 10px;border-bottom:1px solid #eaecf0;color:var(--text);}
#suggest a:hover{background:#eaf3ff;text-decoration:none;}
#suggest .st{font-size:11px;color:var(--muted);}
#suggest .cat{font-size:10.5px;color:#fff;border-radius:2px;padding:0 5px;margin-right:6px;}
.navlinks{display:flex;gap:14px;font-size:12.5px;white-space:nowrap;}
@media(max-width:880px){.navlinks{display:none;}}

.wrap{max-width:1180px;margin:0 auto;display:flex;align-items:flex-start;}
.sidebar{width:166px;flex:0 0 166px;padding:18px 8px 18px 14px;font-size:12.5px;position:sticky;top:50px;}
.sidebar .logo{margin-bottom:10px;}
.sidebar h4{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);
  border-bottom:1px solid var(--border-soft);padding-bottom:3px;margin:14px 0 6px;font-weight:600;}
.sidebar a{display:block;padding:2px 0;color:var(--link);}
.sidebar .count{color:var(--muted);font-size:11px;}
@media(max-width:760px){.sidebar{display:none;}}
.main{flex:1;background:var(--content);border:1px solid #a7d7f9;padding:16px 26px 40px;min-width:0;}

h1.firstHeading{font-family:var(--serif);font-size:29px;font-weight:normal;
  border-bottom:1px solid var(--border);padding-bottom:5px;margin:2px 0 4px;}
.tagline{color:var(--muted);font-size:13.5px;margin:0 0 14px;}
.tagline b{color:var(--text);font-weight:600;}
h2{font-family:var(--serif);font-weight:normal;font-size:22px;border-bottom:1px solid var(--border);
  padding-bottom:3px;margin:30px 0 14px;}
h3{font-family:var(--serif);font-weight:normal;font-size:17px;margin:14px 0 6px;}

.box{border:1px solid var(--border-soft);border-radius:2px;padding:12px 16px;margin:0 0 16px;}
.box h2,.box h3{margin-top:0;border:none;padding:0;}
.box.featured{background:#f5fffa;border-color:#cef2e0;}
.box.itn{background:#f5faff;border-color:#cedff2;}
.box.dyk{background:#fdf6e3;border-color:#f0e6c8;}
.hero{display:flex;gap:16px;align-items:flex-start;}
.hero .featured{flex:1.4;}
.hero .itn{flex:1;}
@media(max-width:820px){.hero{flex-direction:column;}}
.featured .head{font-weight:600;margin-bottom:4px;}
.itn ul{margin:6px 0 0;padding-left:18px;}
.itn li{margin-bottom:6px;}
.date{color:var(--muted);font-variant-numeric:tabular-nums;}

.chip{display:inline-block;font-size:10.5px;line-height:16px;color:#fff;border-radius:2px;padding:0 6px;
  vertical-align:middle;white-space:nowrap;}

.portals{display:grid;grid-template-columns:repeat(auto-fill,minmax(244px,1fr));gap:14px;}
.portal{border:1px solid var(--border-soft);border-top:3px solid;border-radius:2px;padding:11px 13px;background:#fff;}
.portal .ph{display:flex;align-items:center;gap:8px;margin-bottom:6px;}
.portal .ico{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 26px;}
.portal .pname{font-family:var(--serif);font-size:16px;}
.portal .pn{margin-left:auto;font-size:12px;color:var(--muted);}
.portal .blurb{font-size:11.5px;color:var(--muted);margin:0 0 7px;line-height:1.45;}
.portal ul{margin:0;padding:0;list-style:none;font-size:12.5px;}
.portal li{padding:2px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.portal .viewall{font-size:11.5px;margin-top:6px;display:inline-block;}

.statgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px;}
.stat{border:1px solid var(--border-soft);border-radius:2px;padding:10px 12px;background:#fcfcfd;text-align:center;}
.stat .num{font-family:var(--serif);font-size:26px;line-height:1.1;}
.stat .lbl{font-size:11.5px;color:var(--muted);margin-top:2px;}
.cols2{display:grid;grid-template-columns:1.3fr 1fr;gap:22px;}
@media(max-width:820px){.cols2{grid-template-columns:1fr;}}
.barrow{display:flex;align-items:center;gap:8px;margin-bottom:5px;font-size:12.5px;}
.barrow .bl{flex:0 0 116px;text-align:right;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.barrow .bt{flex:1;background:#eaecf0;border-radius:2px;height:15px;overflow:hidden;}
.barrow .bt i{display:block;height:100%;background:#36c;border-radius:2px;}
.barrow .bn{flex:0 0 42px;font-variant-numeric:tabular-nums;color:var(--muted);}
.stacked{display:flex;height:22px;border-radius:2px;overflow:hidden;border:1px solid var(--border-soft);margin:6px 0 8px;}
.stacked div{height:100%;}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;}
.legend span{display:inline-flex;align-items:center;gap:5px;}
.legend i{width:11px;height:11px;border-radius:2px;display:inline-block;}

.cloud{display:flex;flex-wrap:wrap;gap:5px 13px;align-items:baseline;line-height:1.5;}
.cloud a{white-space:nowrap;}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:6px 0 12px;}
.cats{display:flex;flex-wrap:wrap;gap:6px;}
.catbtn{font-size:12px;border:1px solid var(--border-soft);background:#fff;border-radius:12px;padding:2px 11px;cursor:pointer;color:var(--text);}
.catbtn:hover{background:#eaf3ff;}
.catbtn.active{background:#36c;color:#fff;border-color:#36c;}
.toolbar select{font-size:12px;padding:3px 6px;border:1px solid var(--border-soft);border-radius:2px;}
.showing{font-size:12px;color:var(--muted);margin-left:auto;}
table.catalog{width:100%;border-collapse:collapse;font-size:12.5px;table-layout:fixed;}
table.catalog td{overflow-wrap:anywhere;}
table.catalog th{position:sticky;top:46px;background:#f8f9fa;text-align:left;border-bottom:2px solid var(--border);
  padding:6px 8px;font-weight:600;cursor:pointer;white-space:nowrap;z-index:5;}
table.catalog th:hover{background:#eaf3ff;}
table.catalog td{border-bottom:1px solid #eaecf0;padding:6px 8px;vertical-align:top;}
table.catalog tr:hover td{background:#f8fbff;}
.catalog .atitle{font-weight:600;}
.catalog .akind{color:var(--muted);font-size:11px;font-weight:normal;}
.catalog .asum{color:#3b3f42;}
.catalog .atags{margin-top:2px;}
.catalog .atags a{font-size:10.5px;color:var(--muted);margin-right:6px;}
.cdot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px;vertical-align:middle;}
.empty{padding:30px;text-align:center;color:var(--muted);}
footer{max-width:1180px;margin:14px auto 40px;padding:0 18px;color:var(--muted);font-size:11.5px;text-align:center;}
.kbd{font-family:monospace;background:#f0f1f3;border:1px solid var(--border-soft);border-radius:3px;padding:0 4px;font-size:11px;}

/* ---- Article pages ---- */
.article .main{padding:14px 30px 40px;}
.crumb{font-size:12px;color:var(--muted);margin-bottom:2px;}
.subline{font-size:12.5px;color:var(--muted);margin:2px 0 8px;display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center;}
.lead{font-size:15px;line-height:1.6;margin:0 0 14px;}
.content{font-size:14px;line-height:1.65;}
.content h2{margin:22px 0 10px;}
.content h3{font-size:16px;margin:16px 0 6px;}
.content h4{font-family:var(--serif);font-weight:normal;font-size:14.5px;margin:12px 0 4px;}
.content p{margin:0 0 12px;}
.content ul,.content ol{margin:0 0 12px;padding-left:24px;}
.content li{margin-bottom:3px;}
.content blockquote{border-left:4px solid #c8ccd1;margin:0 0 12px;padding:2px 14px;color:#3b3f42;background:#f8f9fa;}
.content hr{border:none;border-top:1px solid var(--border-soft);margin:18px 0;}
.content a.wikilink{color:var(--link);}
.content pre.code{background:#f6f8fa;border:1px solid var(--border-soft);border-radius:3px;padding:10px 12px;
  overflow:auto;font-size:12.5px;line-height:1.45;}
.content code{background:#f0f1f3;border-radius:3px;padding:0 3px;font-size:12.5px;}
.content pre.code code{background:none;padding:0;}
.tablewrap{overflow-x:auto;margin:0 0 14px;}
table.wtable{border-collapse:collapse;font-size:12.5px;background:#fff;min-width:50%;}
table.wtable th,table.wtable td{border:1px solid #a2a9b1;padding:5px 9px;vertical-align:top;text-align:left;}
table.wtable th{background:#eaecf0;font-weight:600;}
table.wtable tr:nth-child(even) td{background:#f8f9fa;}

.infobox{float:right;width:300px;margin:0 0 16px 20px;border:1px solid var(--border-soft);background:#f8f9fa;
  font-size:12.5px;border-radius:2px;}
@media(max-width:680px){.infobox{float:none;width:auto;margin:0 0 16px;}}
.infobox .ib-title{font-family:var(--serif);font-size:17px;text-align:center;padding:9px 10px 6px;font-weight:600;}
.infobox .ib-cat{text-align:center;padding:3px 8px;font-size:11.5px;}
.infobox .ib-cat a{color:#fff;}
.infobox .ib-ico{filter:grayscale(.1);}
.infobox table{width:100%;border-collapse:collapse;}
.infobox th{text-align:left;vertical-align:top;padding:5px 8px;width:38%;color:var(--muted);font-weight:600;
  border-top:1px solid #e3e5e8;}
.infobox td{padding:5px 8px;vertical-align:top;border-top:1px solid #e3e5e8;overflow-wrap:anywhere;}
.infobox .ib-tags{padding:8px;border-top:1px solid #e3e5e8;display:flex;flex-wrap:wrap;gap:4px;}
.tagchip{font-size:10.5px;background:#eaecf0;border:1px solid #d8dadd;border-radius:9px;padding:0 7px;color:#36c;}

.toc{display:inline-block;min-width:240px;max-width:360px;border:1px solid var(--border-soft);background:#f8f9fa;
  padding:8px 14px 10px;margin:0 0 16px;border-radius:2px;}
.toc .toctitle{font-family:var(--serif);font-size:15px;text-align:center;margin-bottom:4px;}
.toc ul{list-style:none;margin:0;padding:0;font-size:12.5px;}
.toc li{padding:1px 0;}
.toc .toc-l1{padding-left:16px;}
.toc .toc-l2{padding-left:32px;}
.toc .tocnum{color:var(--muted);margin-right:5px;}

.catlinks{margin-top:24px;border:1px solid var(--border-soft);background:#f8f9fa;padding:7px 12px;font-size:12px;border-radius:2px;}
.catlinks a{margin:0 2px;}
.backlinks{margin-top:14px;border:1px solid var(--border-soft);border-radius:2px;}
.backlinks .bl-title{font-family:var(--serif);font-size:15px;padding:7px 12px;border-bottom:1px solid var(--border-soft);background:#f8f9fa;}
.backlinks ul{list-style:none;margin:0;padding:8px 12px;columns:2;column-gap:24px;font-size:12.5px;}
@media(max-width:680px){.backlinks ul{columns:1;}}
.backlinks li{padding:2px 0;break-inside:avoid;}