/* A field atlas: editorial typography, warm paper, and a living radial tree.
   Color expresses ancestry; depth controls and restrained motion explain the structure. */
:root{
  --paper:#fcfaf9; --sheet:#fffdfd; --sunk:#f1eef4; --ink:#302b37; --ink-2:#65616e; --ink-3:#87818f;
  --rule:#e6e1e9; --rule-2:#d4ccd9; --prussian:#2b6387; --on-prussian:#ffffff; --hilite:#ffd670; --hilite-ink:#302b37;
  --on-fill:#ffffff; --on-fill-dark:#302b37; --tree-root:#293f59; --need-ink:#302b37;
  --fill-base1:8%; --fill-base2:16%; --fill-base3:75%; --fill-base4:45%;
  --branch-p1:14%; --branch-p2:34%; --branch-p3:58%; --branch-p4:76%; --tip-color:50%;
  --g3:#ff70a6; --g2:#70d6ff; --hy:#ff9770; --cl:#ffd670; --ap:#e9ff70;
  --display:"Newsreader","Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC","SimSun",serif;
  --sans:"IBM Plex Sans",-apple-system,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --fs-0:11.5px; --fs-1:12.5px; --fs-2:14px; --fs-3:15.5px; --fs-4:19px; --fs-5:26px; --fs-6:clamp(34px,4.6vw,56px);
  --r-s:6px; --r-m:10px; --r-l:16px;
  --hdr:104px;
  --gut-l:max(16px,env(safe-area-inset-left,0px)); --gut-r:max(16px,env(safe-area-inset-right,0px));
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0b1828; --sheet:#102136; --sunk:#0d1c2e; --ink:#e7eef6; --ink-2:#a8b8ca; --ink-3:#7189a2;
  --rule:#1c3350; --rule-2:#2a4767; --prussian:#70d6ff; --on-prussian:#0b1828; --hilite:#5c4a12; --hilite-ink:#fff4cf;
  --branch-p1:62%; --branch-p2:72%; --branch-p3:82%; --branch-p4:92%; --tip-color:85%;
  --g3:#ff70a6; --g2:#70d6ff; --hy:#ff9770; --cl:#ffd670; --ap:#e9ff70; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0b1828; --sheet:#102136; --sunk:#0d1c2e; --ink:#e7eef6; --ink-2:#a8b8ca; --ink-3:#7189a2;
  --rule:#1c3350; --rule-2:#2a4767; --prussian:#70d6ff; --on-prussian:#0b1828; --hilite:#5c4a12; --hilite-ink:#fff4cf;
  --branch-p1:62%; --branch-p2:72%; --branch-p3:82%; --branch-p4:92%; --tip-color:85%;
  --g3:#ff70a6; --g2:#70d6ff; --hy:#ff9770; --cl:#ffd670; --ap:#e9ff70; color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--paper);color:var(--ink);font:var(--fs-2)/1.55 var(--sans);-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--prussian);text-underline-offset:2px}
:focus-visible{outline:2px solid var(--prussian);outline-offset:2px;border-radius:4px}
h1,h2,h3{text-wrap:balance}
.wrap{max-width:1380px;margin-inline:auto;padding-left:var(--gut-l);padding-right:var(--gut-r)}

/* ---------- header ---------- */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--rule)}
.bar{display:flex;gap:16px;align-items:center;justify-content:space-between;min-height:62px;flex-wrap:wrap;padding-block:10px}
.brand{display:flex;align-items:center;gap:10px;background:none;border:0;padding:0;text-align:left;min-width:0;text-decoration:none;color:var(--ink)}
.mark{width:30px;height:30px;flex:none}
.mark circle{fill:none;stroke:var(--prussian);stroke-width:1.4}
.mark path{stroke:var(--prussian);stroke-width:1.4;fill:none;stroke-linecap:round}
.mark .dot{fill:var(--prussian);stroke:none}
.bt{font-family:var(--display);font-size:20px;font-weight:500;letter-spacing:-.005em;white-space:nowrap}
.brand .zh{color:var(--ink-3);font-size:var(--fs-1);white-space:nowrap}
.controls{display:flex;gap:8px;align-items:center;flex:1;justify-content:flex-end;min-width:min(100%,280px)}
#q{flex:1;max-width:310px;min-width:0;padding:8px 12px;border:1px solid var(--rule);border-radius:8px;background:var(--sheet);font-size:12px}
#q::placeholder{color:var(--ink-3)}
.ghost{background:var(--sheet);border:1px solid var(--rule-2);border-radius:999px;width:36px;height:36px;display:grid;place-items:center;padding:0;flex:none}
.ghost svg{width:16px;height:16px}
.ghost svg circle{fill:none;stroke:var(--ink);stroke-width:1.6}
.ghost svg path{fill:var(--ink)}
.language-switch{display:flex;align-items:center;gap:2px;border:1px solid var(--rule-2);border-radius:999px;padding:3px;background:var(--sheet);flex:none}
.language-switch :is(button,a){border:0;background:transparent;border-radius:999px;padding:5px 10px;font-size:12px;color:var(--ink-2);white-space:nowrap}
.language-switch :is(button,a)[aria-pressed="true"]{background:var(--prussian);color:var(--on-prussian);font-weight:600}
.taxonomy-deck{font-size:var(--fs-4);color:var(--prussian);margin:14px 0}
.translation-note{padding:10px 12px;background:var(--sunk);border-radius:var(--r-s);font-size:var(--fs-1);color:var(--ink-2);line-height:1.7}
.original-definition{margin:12px 0;font-size:var(--fs-1)}
.original-definition summary{cursor:pointer;color:var(--prussian)}
:root[data-language="zh"] .hero h1{font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;line-height:1.18;font-weight:500;font-size:clamp(38px,4.1vw,62px);letter-spacing:.035em}
:root[data-language="zh"] .sech{font-family:var(--sans);line-height:1.45;font-weight:600}
:root[data-language="zh"] .hero .lede{line-height:1.8}
:root[data-language="zh"] .clado .rl{font-family:var(--sans)}
@media(max-width:600px){.bt{font-size:17px;white-space:normal}.controls{flex-wrap:wrap}.language-switch{order:2}.ghost{order:3}#q{flex-basis:100%;max-width:none}.language-switch :is(button,a){min-height:30px}.hero h1{line-height:1.15}}
.tabs{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button,.tabs a{background:none;border:0;padding:9px 10px 10px;color:var(--ink-2);border-bottom:2px solid transparent;white-space:nowrap;font-size:var(--fs-2);text-decoration:none}
.tabs button:hover,.tabs a:hover{color:var(--ink)}
.tabs [aria-selected="true"]{color:var(--ink);border-bottom-color:var(--prussian);font-weight:600}

/* Research reading views share the same type, spacing and palette as the tree. */
.employee-overview{display:grid;grid-template-columns:1.15fr 1fr;gap:18px;margin:30px 0}
.employee-overview p,.employee-catalog p,.employee-axes p{color:var(--ink-2);line-height:1.75}
.employee-overview small{color:var(--ink-3)}
.employee-section-title{display:flex;align-items:baseline;gap:16px;border-top:1px solid var(--rule);padding-top:24px;margin:28px 0 20px;flex-wrap:wrap}
.employee-section-title>span,.employee-axis-index{font:11px var(--mono);color:var(--prussian)}
.employee-section-title h2{font:26px var(--display);margin:0}.employee-section-title p{font-size:12px;color:var(--ink-3);margin:0 0 0 auto}
.employee-axes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 32px;margin:28px 0 40px}
.employee-axes article{border-left:3px solid #70d6ff;padding-left:18px}.employee-axes article:nth-child(3n+2){border-color:#ff70a6}.employee-axes article:nth-child(3n){border-color:#ff9770}
.employee-axes h3{font-size:16px;margin:8px 0}.employee-axes p{font-size:13px;margin:0}
.employee-roles,.employee-catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.employee-roles .card,.employee-catalog .card{margin:0;padding:22px;min-width:0}
.employee-roles .clear{display:block;text-align:left;margin:10px 0}.employee-roles h3{font-size:20px}
.employee-catalog{grid-template-columns:repeat(2,minmax(0,1fr))}.employee-catalog h3{margin:15px 0;font-size:23px;overflow-wrap:anywhere}
.employee-type{font-size:11px;border:1px solid var(--rule-2);border-radius:30px;padding:4px 10px;color:var(--ink-2)}
.employee-benchmark{border-color:#70d6ff}.employee-platform{border-color:#ff70a6}.employee-open_source{border-color:#ff9770}.employee-concept{border-color:#ffd670}
.employee-catalog p{font-size:14px}.employee-status{border-top:1px solid var(--rule);padding-top:12px;color:var(--ink-3);font-size:12px;line-height:1.7}
.employee-related{display:inline-block;margin-top:12px;font-size:12px}.employee-source-controls input{background:var(--sheet);color:var(--ink);border:1px solid var(--rule-2);border-radius:9px;padding:11px 14px;width:min(100%,480px);font:inherit}
.employee-next{margin-top:32px;padding:28px}.employee-next p{max-width:85ch;line-height:1.8}
.reading-view{max-width:1120px;margin:30px auto 60px}.reading-view>p{max-width:86ch;line-height:1.8}
.reading-view h1{font:clamp(32px,4vw,54px)/1.15 var(--display);margin:20px 0}.reading-view h2{font:28px var(--display);margin-top:36px}
.reading-nav{display:flex;gap:20px;flex-wrap:wrap;margin:22px 0}.reading-nav a{font-size:13px}.reading-stats{display:flex;gap:28px;flex-wrap:wrap;padding:22px 0;border-block:1px solid var(--rule);margin:26px 0}.reading-stats b{display:block;font:34px var(--display)}
.reading-stats span{font-size:12px;color:var(--ink-2)}.reading-table{overflow:auto}.reading-table td{min-width:120px}.reading-view .source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.research-link{font-size:12px;white-space:nowrap}.load-note{color:var(--ink-3);font-size:12px}
.revision-realms>.card{display:block;width:100%;text-align:left;color:var(--ink);font:inherit;cursor:pointer}.revision-realms>.card:hover{border-color:var(--prussian)}.revision-realms>.card h3{margin:8px 0}.revision-realms>.card>span:last-child{font-size:12px;color:var(--ink-2)}.evaluation-scope{max-width:76ch;margin:0 auto 28px;border-left:4px solid #ff9770}.evaluation-scope h2{font:26px var(--display);margin:4px 0 12px}.evaluation-scope p{line-height:1.8}
@media(max-width:820px){.employee-overview,.employee-catalog{grid-template-columns:1fr}.employee-roles,.employee-axes,.reading-view .source-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.employee-section-title p{margin-left:0;flex-basis:100%}}
@media(max-width:520px){.employee-roles,.employee-axes,.reading-view .source-grid{grid-template-columns:1fr}.employee-section-title h2{font-size:23px}.employee-catalog .card{padding:18px}}

/* ---------- filters ---------- */
.app-view>h1{font-family:var(--display);font-size:38px;font-weight:400;line-height:1.2;margin:12px 0}
:root[data-language="zh"] .app-view>h1{font-family:var(--sans);font-size:32px;font-weight:500}
.app-cohorts{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.app-cohorts b{font-weight:500;margin-left:8px}
.app-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-block:1px solid var(--rule);margin:22px 0}
.app-metrics>div{padding:18px 20px;border-right:1px solid var(--rule)}.app-metrics>div:first-child{padding-left:0}.app-metrics>div:last-child{border:0}
.app-metrics b{display:block;font:36px/1.15 var(--display);color:var(--ink)}.app-metrics span{display:block;font-size:12px;color:var(--ink-2);margin-top:6px}
.app-quality{background:var(--sunk);padding:12px 15px;border-radius:8px;color:var(--ink-2);font-size:12px;line-height:1.7}.app-quality>span{display:block;font:11px/1.8 var(--mono);margin-top:4px}
.app-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:22px 0}
.app-controls input,.app-controls select{background:var(--sheet);border:1px solid var(--rule-2);border-radius:6px;padding:9px 11px;min-width:0}.app-controls input{flex:1;min-width:220px}.app-controls .btno{font-size:12px}
.app-explore{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:22px}
.app-explore .card{margin:0;padding:22px}.app-ranking h3{margin:0}
.app-bar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 10px;width:100%;padding:9px 0;text-align:left;border:0;background:none;color:var(--ink-2);font-size:12px}
.app-bar>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-bar>b{font-variant-numeric:tabular-nums;font-weight:500}.app-bar>i{display:block;grid-column:1/-1;height:6px;border-radius:3px}
.app-bar:hover,.app-bar.active{color:var(--ink);font-weight:600}.app-bar.active>i{outline:1px solid var(--ink-3);outline-offset:2px}
.app-detail h2{font:28px/1.2 var(--display);margin:10px 0;overflow-wrap:anywhere}.app-detail h4{font-size:12px;margin:20px 0 8px;font-weight:600}
.app-detail-count{color:var(--ink-2);font-size:13px}.app-detail-count>b{font:32px var(--display);color:var(--ink)}.app-detail-count>span{color:var(--ink-3);font-size:12px}
.app-pills .pill{white-space:normal;margin:2px 4px 2px 0}.app-pills .pill b{font-weight:500;margin-left:5px}
.app-class-list{margin-top:18px;max-height:260px;overflow:auto;font-size:12px}.app-class-list summary{cursor:pointer;color:var(--prussian);margin-bottom:8px}.app-class-list button{display:block;padding:5px 0;width:100%;font-size:12px}.app-class-list .mono{font-size:10px;color:var(--ink-3)}
.app-example-links{display:flex;flex-wrap:wrap;gap:14px;font-size:12px}
.app-table-heading{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-top:25px}.app-table-heading h3{font-size:18px;font-weight:500}.app-table-heading>span{color:var(--ink-3);font-size:12px}
.app-table{overflow:auto;border:1px solid var(--rule);border-radius:8px;background:var(--sheet)}.app-table table{margin:0;min-width:620px}.app-table tr.selected{background:var(--sunk)}.app-table td{font-size:12px}.app-table td:first-child{width:40%}.app-table button{font-size:12px;text-align:left;overflow-wrap:anywhere}
.app-pagination{display:flex;justify-content:center;align-items:center;gap:20px;margin:20px 0;font-size:12px}.app-pagination button{padding:7px 12px;font-size:12px}.app-pagination button:disabled{opacity:.4;cursor:default}
.app-method{padding:18px 0;border-top:1px solid var(--rule);font-size:12px;line-height:1.8;color:var(--ink-2)}.app-method summary{cursor:pointer;color:var(--prussian)}
@media(max-width:900px){.app-explore{grid-template-columns:1fr}.app-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.app-metrics>div{border-right:0;padding-left:0}.app-metrics>div:nth-child(n+3){border-top:1px solid var(--rule)}}
@media(max-width:520px){.app-view>h1,:root[data-language="zh"] .app-view>h1{font-size:27px}.app-controls input{flex-basis:100%}.app-controls select{flex:1}.app-metrics b{font-size:30px}.app-table-heading{align-items:flex-start;flex-direction:column;gap:0}.app-cohorts .chip{font-size:11px}}
.filters{border-bottom:1px solid var(--rule);background:var(--paper)}
.filters .wrap{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;padding-block:10px}
.fgroup{display:flex;gap:5px;align-items:center;flex-wrap:wrap}
.fgroup>span{color:var(--ink-3);font-size:var(--fs-0);text-transform:uppercase;letter-spacing:.07em;margin-right:4px}
.chip{border:1px solid var(--rule-2);background:var(--sheet);border-radius:999px;padding:3px 10px;font-size:var(--fs-1);white-space:nowrap;color:var(--ink-2)}
.chip:hover{border-color:var(--ink-3);color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chip .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:0}
.clear{font-size:var(--fs-1);color:var(--prussian);background:none;border:0;padding:0;text-align:left}
.clear:hover{text-decoration:underline}
#morefilters{flex-basis:100%}
#morefilters summary{cursor:pointer;color:var(--ink-2);font-size:var(--fs-1);list-style:revert}
#morefilters[open]{display:flex;flex-direction:column;gap:8px}
#stats{margin-left:auto;color:var(--ink-3);font-size:var(--fs-1);font-variant-numeric:tabular-nums}
#stats b{color:var(--ink);font-weight:600}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 430px;gap:28px;align-items:start;padding-block:22px 48px}
.layout.solo{grid-template-columns:minmax(0,1fr)}
.view{min-width:0;outline:none}
.detail{background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r-l);padding:20px 22px 28px;position:sticky;top:calc(var(--hdr) + 16px);max-height:calc(100vh - var(--hdr) - 32px);overflow:auto;min-width:0}
@media (max-width:1120px){.layout{grid-template-columns:minmax(0,1fr)}.detail{position:static;max-height:none}}
.crumbs{display:flex;flex-wrap:wrap;gap:4px 6px;font-size:var(--fs-1);color:var(--ink-3);margin-bottom:10px;align-items:center}
.crumbs button{background:none;border:0;padding:0;color:var(--prussian);font-size:var(--fs-1)}
.crumbs button:hover{text-decoration:underline}
.hint{color:var(--ink-3);font-size:var(--fs-1)}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.toolbar>button:not(.clear){background:var(--sheet);border:1px solid var(--rule-2);border-radius:999px;padding:4px 12px;font-size:var(--fs-1);color:var(--ink-2)}
.toolbar>button:not(.clear):hover{color:var(--ink);border-color:var(--ink-3)}
.toolbar>button.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.eyebrow{font-family:var(--mono);font-size:var(--fs-0);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.sech{font-family:var(--display);font-weight:500;font-size:var(--fs-5);line-height:1.15;margin:0 0 6px;letter-spacing:-.01em}
.secp{margin:0 0 18px;color:var(--ink-2);max-width:68ch}

/* ---------- overview: hero ---------- */
.hero{display:grid;grid-template-columns:minmax(330px,.85fr) minmax(0,1.55fr);gap:32px 44px;align-items:center;padding:22px 0 46px;border-bottom:1px solid var(--rule)}
.hero-copy{padding:10px 0 0;min-width:0}
.hero-eyebrow{display:flex;align-items:center;gap:9px;font-size:10px;letter-spacing:.09em;margin-bottom:22px;color:var(--ink-2)}
.edition-dot{width:6px;height:6px;border-radius:50%;background:var(--prussian);box-shadow:0 0 0 4px color-mix(in srgb,var(--prussian) 8%,transparent)}
.edition-divider{color:var(--rule-2);margin:0 3px}
.hero h1{font-family:var(--display);font-weight:400;font-size:clamp(40px,4vw,61px);line-height:1.07;letter-spacing:-.035em;margin:0 0 18px;text-wrap:initial}
.hero h1>span{display:block;white-space:nowrap}
.hero h1 .title-tail{color:var(--prussian)}
.hero .taxonomy-deck{font-size:16px;color:var(--ink);margin:0 0 12px;line-height:1.55}
.hero .lede{font-size:14px;color:var(--ink-2);line-height:1.85;margin:0 0 27px;max-width:40ch}
.hero-visual{min-width:0;align-self:center;position:relative}
.hierarchy{margin:22px 0 24px}
.hierarchy-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;color:var(--ink-3);margin-bottom:12px}
.hierarchy-heading>span:first-child{color:var(--ink-2);letter-spacing:.04em}
.hierarchy-heading>span:last-child{font-size:10px}
.ledger{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative;border-top:1px solid var(--rule);margin:0}
.level-step{position:relative;display:grid;grid-template-rows:18px 39px 30px;gap:3px;padding:13px 10px 6px 0;text-align:left;border:0;border-bottom:2px solid var(--rule);background:transparent;min-width:0;transition:background .2s ease,color .2s ease,border-color .2s ease}
.level-step+.level-step{padding-left:12px}
.level-step:hover{background:var(--sunk)}
.level-step[aria-pressed="true"]{border-bottom-color:var(--prussian);background:linear-gradient(0deg,color-mix(in srgb,var(--prussian) 6%,transparent),transparent)}
.ledger .step-index{font-family:var(--mono);font-size:9px;letter-spacing:.07em;color:var(--ink-3)}
.ledger b{font-family:var(--display);font-weight:400;font-size:31px;line-height:1.1;color:var(--ink);font-variant-numeric:lining-nums tabular-nums}
.level-step[aria-pressed="true"] b{color:var(--prussian)}
.ledger .step-name{font-size:11px;line-height:1.35;color:var(--ink-2);white-space:normal}
.step-arrow{position:absolute;right:0;top:43px;color:var(--rule-2);font-size:13px}
.level-step:last-of-type .step-arrow{display:none}
.proposal-step{grid-column:1/-1;display:flex;align-items:baseline;justify-content:flex-end;gap:9px;padding:10px 0 0;color:var(--ink-3)}
.ledger .proposal-step b{font-size:17px;color:var(--ink-2)}
.proposal-step .step-name{font-size:10px;color:var(--ink-3)}
.level-caption{display:flex;gap:7px;flex-wrap:wrap;align-content:flex-start;min-height:39px;font-size:11px;line-height:1.6;color:var(--ink-3);padding-top:10px}
.level-kicker{font-family:var(--mono);font-size:10px;color:var(--prussian);white-space:nowrap}
.ctas{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:8px}
.ctas button{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;min-height:42px;font-size:12px;transition:transform .2s ease,background .2s ease}
.ctas button:hover{transform:translateY(-2px)}
.ctas button span{font-size:17px}
.btnp{background:var(--prussian);color:var(--on-prussian);border:1px solid var(--prussian);border-radius:6px;padding:10px 17px;font-weight:500}
.btnp:hover{filter:brightness(1.08)}
.btno{background:transparent;color:var(--ink);border:1px solid var(--rule-2);border-radius:6px;padding:10px 17px}
.btno:hover{border-color:var(--ink-3)}
.source-callout{display:grid;grid-template-columns:1fr auto;gap:3px 16px;max-width:390px;margin-top:23px;padding:15px 0 0;border-top:1px solid var(--rule);color:var(--ink-2);text-decoration:none!important;transition:color .2s ease}
.source-callout:hover{color:var(--prussian)}
.source-callout-top{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:11px;grid-column:1/-1}
.source-callout-top>span{font-size:16px}
.source-callout-count{font:21px var(--display);color:var(--ink);grid-column:1/-1}
.source-callout-count>span{font:11px var(--sans);color:var(--ink-2);margin-left:3px}
.source-callout-note{font-size:10px;color:var(--ink-3);grid-column:1/-1;margin-top:3px}
@media(max-width:1050px){.hero{grid-template-columns:minmax(300px,.85fr) minmax(0,1.15fr);gap:28px}.hero h1{font-size:42px}.hierarchy-heading>span:last-child{display:none}.figure-meta{display:none!important}}
@media(max-width:820px){.hero{grid-template-columns:minmax(0,1fr);padding-top:20px;gap:30px}.hero-copy{max-width:620px}.hero h1{font-size:clamp(42px,7vw,64px)}.hero .lede{max-width:48ch}.source-callout{max-width:100%}.hero-visual{border-top:1px solid var(--rule);padding-top:20px}.figure-meta{display:block!important}.hierarchy{max-width:560px}}
@media(max-width:520px){.hero{gap:22px}.hero h1{font-size:42px}.hero-eyebrow{font-size:9px;margin-bottom:18px}:root[data-language="zh"] .hero h1{font-size:43px}.hero .taxonomy-deck{font-size:15px}.hero .lede{font-size:13px;margin-bottom:18px}.level-step{grid-template-rows:15px 34px 28px}.ledger b{font-size:28px}.hierarchy-heading{font-size:10px}.figure-meta{display:none!important}.source-callout{margin-top:19px}.clado-tools{margin-left:auto}}
@media(max-width:820px){
  .hero{display:flex;flex-direction:column;align-items:stretch;gap:0}
  .hero-copy{display:block;order:0}
  .hero-eyebrow{order:0}.hero h1{order:1}.hero .taxonomy-deck{order:2}
  .hero-visual{order:3;width:100%;border-top:0;padding-top:7px}
  .hero .lede{order:4;max-width:100%;margin:24px 0 14px;padding-top:22px;border-top:1px solid var(--rule)}
  .hero .ctas{order:5}.source-callout{order:6;width:100%}
  .hero-visual .hierarchy{max-width:none;margin:10px 0 8px}
  .hero-visual .hierarchy-heading{display:none}
  .hero-visual .level-step{grid-template-rows:30px 18px;gap:0;padding-top:8px;padding-bottom:5px}
  .hero-visual .level-step .step-index{display:none}
  .hero-visual .ledger b{font-size:25px}.hero-visual .ledger .proposal-step b{font-size:14px}
  .hero-visual .ledger .step-name{font-size:10px}
  .hero-visual .step-arrow{top:15px}
  .hero-visual .proposal-step{padding-top:6px}
  .hero-visual .level-caption{min-height:0;padding-top:5px;font-size:10px;line-height:1.5;gap:5px}
}
@media(max-width:600px){
  .bar{gap:8px;padding-block:8px}.controls{flex-wrap:nowrap;min-width:100%;gap:6px}
  .language-switch{order:0}.language-switch :is(button,a){padding:4px 7px;font-size:11px;min-height:28px}
  #q{order:1;flex:1 1 auto;max-width:none;font-size:11px;padding:8px}
  .ghost{order:2;width:32px;height:32px}.tabs button{padding:8px 9px;font-size:12px}
  .hero{padding-top:12px}.hero-eyebrow{margin-bottom:14px}
  .hero h1{font-size:38px;margin-bottom:12px}:root[data-language="zh"] .hero h1{font-size:38px}
  .hero .taxonomy-deck{font-size:13px;margin-bottom:12px}
}

/* cladogram */
.figure-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px;border-bottom:1px solid var(--rule);padding-bottom:12px}
.figure-meta{font-size:10px;color:var(--ink-3);letter-spacing:.025em;white-space:nowrap}
.figure-meta>span{font-family:var(--mono);font-size:9px;letter-spacing:.08em;color:var(--ink-2);margin-right:12px}
.clado-tools{display:flex;align-items:center;justify-content:flex-end;gap:12px;font-size:var(--fs-0);color:var(--ink-3)}
.replay{display:flex;align-items:center;gap:5px;background:none;border:0;padding:4px;color:var(--ink-2);font-size:10px}
.replay>span{font-size:19px;line-height:1}
.replay:hover{color:var(--prussian)}
.color-switch{display:flex;gap:2px;padding:3px;border:1px solid var(--rule);background:var(--sheet);border-radius:999px}
.color-switch button{border:0;background:transparent;color:var(--ink-2);padding:4px 10px;border-radius:999px;font-size:10px}
.color-switch button[aria-pressed="true"]{background:var(--sunk);color:var(--ink);font-weight:600}
.palette-key{display:flex;align-items:center;gap:12px;margin:8px 0 0;font-size:10px;color:var(--ink-3)}
.palette-spectrum{display:flex;width:100px;height:5px;border-radius:99px;overflow:hidden;flex:none}
.palette-spectrum i{flex:1}
.clado{position:relative;min-width:0}
.clado svg{display:block;width:100%;height:auto;max-width:100%;max-height:590px;overflow:visible;user-select:none;-webkit-user-select:none}
.clado .ln{fill:none;stroke-linecap:round;stroke-linejoin:round;opacity:.94}
.clado .ln.l0{stroke:color-mix(in srgb,var(--branch-base) var(--branch-p1),var(--branch-ink));stroke-width:2.1}
.clado .ln.l1{stroke:color-mix(in srgb,var(--branch-base) var(--branch-p2),var(--branch-ink));stroke-width:1.35}
.clado .ln.l2{stroke:color-mix(in srgb,var(--branch-base) var(--branch-p3),var(--branch-ink));stroke-width:.9}
.clado .ln.l3{stroke:color-mix(in srgb,var(--branch-base) var(--branch-p4),var(--branch-ink));stroke-width:.6;opacity:.72}
.clado .nd{fill:color-mix(in srgb,var(--branch-base) var(--branch-p2),var(--branch-ink))}
.clado .nd.r{stroke:var(--sheet);stroke-width:1.5}
.clado .ringbg{fill:none;stroke:var(--rule);stroke-width:.65;opacity:.55}
.clado .guide{fill:none;stroke:var(--rule);stroke-width:.6;stroke-dasharray:1 5;opacity:.6}
.clado .seg{stroke:none}
.clado .s-G3{fill:var(--g3)}.clado .s-G2{fill:var(--g2)}.clado .s-HY{fill:var(--hy)}.clado .s-CL{fill:var(--cl)}.clado .s-AP{fill:var(--ap)}
.clado .hit{fill:transparent;cursor:pointer}
.clado .clade{transition:opacity .3s ease}
.clado [data-layer]{transition:opacity .35s ease,stroke-width .25s ease}
.clado .beyond{opacity:.045!important;pointer-events:none!important;animation:none!important;stroke-dasharray:none!important;stroke-dashoffset:0!important}
.clado .hit.beyond{visibility:hidden}
.clado svg.hot .clade:not(.on){opacity:.12}
.clado svg.hot .clade.on .ln{opacity:1}
.clado svg.tracing .clade.on .ln:not(.trace),.clado svg.tracing .clade.on .nd:not(.trace){opacity:.13}
.clado svg.tracing .clade.on .seg:not(.trace){opacity:.22}
.clado svg.tracing .ln.trace{stroke-width:2;opacity:1}
.clado svg.tracing .nd.trace{stroke:var(--paper);stroke-width:1}
.clado .leafmark{fill:none;stroke:var(--ink);stroke-width:1.2;pointer-events:none}
.clado .core{fill:var(--sheet);stroke:var(--rule-2);stroke-width:1}
.clado .cn{font-family:var(--display);font-size:29px;fill:var(--ink);text-anchor:middle;font-variant-numeric:lining-nums}
.clado .cl{font-family:var(--sans);font-size:8.5px;fill:var(--ink-3);text-anchor:middle;letter-spacing:.1em;text-transform:uppercase}
.clado .rl{font-family:var(--sans);font-size:13px;font-weight:500;fill:var(--ink-2)}
.clado .rc{font-family:var(--mono);font-size:9px;fill:color-mix(in srgb,var(--branch-base) var(--branch-p1),var(--branch-ink));letter-spacing:.05em}
.cap{height:78px;overflow:auto;margin-top:3px;padding:12px 0 0;border-top:1px solid var(--rule);display:flex;gap:10px;align-items:flex-start;font-size:11px;color:var(--ink-2);scrollbar-width:thin}
.cap .sw{width:10px;height:10px;border-radius:50%;flex:none;margin-top:5px}
.cap b{color:var(--ink);font-size:12px;font-weight:500}
.cap .p{color:var(--ink-3)}
.cap .mbar{margin-top:6px}
@media(max-width:520px){.cap{height:100px}.palette-key{font-size:9px;gap:8px}.palette-spectrum{width:60px}.clado svg{max-height:none}}

/* Motion teaches the hierarchy: one reveal, then direct manipulation. */
.clado .is-growing .ln:not(.beyond){stroke-dasharray:1;animation:branch-draw .75s cubic-bezier(.22,1,.36,1) both}
.clado .is-growing [data-layer="2"]{animation-delay:.18s!important}
.clado .is-growing [data-layer="3"]{animation-delay:.38s!important}
.clado .is-growing [data-layer="4"]{animation-delay:.6s!important}
.clado .is-growing .nd:not(.beyond){animation:node-appear .55s ease both}
.clado .is-growing .seg:not(.beyond){animation:tip-appear .7s ease .8s both}
.is-introducing .hero-copy{animation:copy-appear .7s cubic-bezier(.22,1,.36,1) both}
@keyframes branch-draw{from{stroke-dashoffset:1;opacity:0}to{stroke-dashoffset:0;opacity:1}}
@keyframes node-appear{from{opacity:0}to{opacity:1}}
@keyframes tip-appear{from{opacity:0}to{opacity:1}}
@keyframes copy-appear{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.clado *, .hero-copy, .ctas button, .level-step{animation:none!important;transition:none!important}.ctas button:hover{transform:none}}
.ringkey{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:14px}
@media (max-width:760px){.ringkey{grid-template-columns:repeat(2,minmax(0,1fr))}}
.ringkey>div{font-size:var(--fs-0);color:var(--ink-3);min-width:0}
.ringkey b{display:flex;gap:6px;align-items:center;font-size:var(--fs-1);color:var(--ink);font-weight:600}
.ringkey i{width:10px;height:10px;border-radius:2px;flex:none}
.ringkey em{font-style:normal;color:var(--ink-2);font-variant-numeric:tabular-nums;margin-left:auto;font-weight:500}

/* levels strip */
.levels{padding:42px 0;border-bottom:1px solid var(--rule)}
.lvrow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;border:1px solid var(--rule);border-radius:var(--r-l);overflow:hidden;background:var(--sheet)}
@media (max-width:860px){.lvrow{grid-template-columns:minmax(0,1fr)}}
.lvrow>div{padding:16px 16px 18px;min-width:0}
.lvrow>div+div{border-left:1px solid var(--rule)}
@media (max-width:860px){.lvrow>div+div{border-left:0;border-top:1px solid var(--rule)}}
.lvrow .code{font-family:var(--mono);font-size:var(--fs-0);color:var(--prussian)}
.lvrow h3{font-family:var(--display);font-weight:500;font-size:var(--fs-4);margin:4px 0 0;line-height:1.2}
.lvrow .n{font-family:var(--display);font-size:32px;line-height:1.1;margin-top:6px;font-variant-numeric:lining-nums tabular-nums}
.lvrow p{margin:6px 0 0;font-size:var(--fs-1);color:var(--ink-2)}
.lvrow .zh{color:var(--ink-3);font-size:var(--fs-1);margin-left:4px}
.lvrow .eg{margin-top:8px;font-size:var(--fs-0);color:var(--ink-3);font-family:var(--mono);overflow-wrap:anywhere}

/* evidence */
.evid{padding:42px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:20px 48px}
@media (max-width:980px){.evid{grid-template-columns:minmax(0,1fr)}}
.bars{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.bars .lab{display:flex;justify-content:space-between;gap:12px;font-size:var(--fs-1);color:var(--ink-2);margin-bottom:4px}
.bars .lab b{color:var(--ink)}
.bars .lab span:last-child{font-variant-numeric:tabular-nums;white-space:nowrap}
.bars .track{height:12px;background:var(--sunk);border-radius:3px;position:relative;overflow:hidden}
.bars .fill{position:absolute;inset:0 auto 0 0;background:var(--ink-3);border-radius:3px}
.bars .fill.us{background:var(--prussian)}
.bars .zero{position:absolute;left:0;top:-2px;bottom:-2px;width:2px;background:var(--prussian)}
.bars .ax{display:flex;justify-content:space-between;font-size:var(--fs-0);color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:2px}
.facts{display:grid;grid-template-columns:minmax(0,1fr);gap:0;align-content:start}
.facts>div{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;padding:12px 0;border-top:1px solid var(--rule);align-items:baseline}
.facts>div:last-of-type{border-bottom:1px solid var(--rule)}
.facts b{font-family:var(--display);font-weight:500;font-size:28px;line-height:1;font-variant-numeric:lining-nums tabular-nums}
.facts span{color:var(--ink-2);font-size:var(--fs-1)}

/* realm ledger */
.realms{padding:30px 0 6px}
.rledger{border-top:1px solid var(--ink)}
.rrow{display:grid;grid-template-columns:52px minmax(0,2.2fr) minmax(0,3fr) 170px 150px;gap:16px;align-items:center;width:100%;text-align:left;background:none;border:0;border-bottom:1px solid var(--rule);padding:14px 8px;color:inherit}
.rrow:hover{background:var(--sheet)}
.rrow .code{font-family:var(--mono);font-size:var(--fs-1);font-weight:500}
.rrow .nm{font-family:var(--display);font-size:var(--fs-4);line-height:1.2;font-weight:500}
.rrow .nm small{display:block;font-family:var(--sans);font-size:var(--fs-1);color:var(--ink-3);font-weight:400;margin-top:2px}
.rrow .df{font-size:var(--fs-1);color:var(--ink-2)}
.rrow .ct{font-size:var(--fs-1);color:var(--ink-3);font-variant-numeric:tabular-nums;text-align:right}
.rrow .ct b{color:var(--ink);font-weight:600}
@media (max-width:980px){.rrow{grid-template-columns:44px minmax(0,1fr) 150px}.rrow .df{display:none}.rrow .ct{grid-column:2 / -1;text-align:left}}
@media (max-width:560px){.rrow{grid-template-columns:40px minmax(0,1fr)}.rrow .mb{grid-column:2}.rrow .ct{grid-column:2}}

/* ---------- atlas ---------- */
.atlas svg{display:block;width:100%;height:auto;user-select:none}
.atlas rect{stroke:var(--paper);stroke-width:1.2;cursor:pointer}
.atlas rect.dim{opacity:.16}
.atlas rect.sel{stroke:var(--ink);stroke-width:2.5}
.atlas rect:hover{filter:brightness(1.08)}
.atlas text{pointer-events:none;font-size:11.5px;fill:var(--on-fill);font-family:var(--sans)}
.atlas text.dark{fill:var(--on-fill-dark)}
.lvl-labels{display:flex;justify-content:space-between;gap:8px;color:var(--ink-3);font-size:var(--fs-0);margin-top:6px;text-transform:uppercase;letter-spacing:.06em}

/* ---------- lineage ---------- */
.tree-scroll{overflow:auto;border:1px solid var(--rule);border-radius:var(--r-l);background:var(--sheet);max-height:calc(100vh - var(--hdr) - 150px)}
.tree svg{display:block}
.tree path{fill:none;stroke:var(--rule-2);stroke-width:1.2}
.tree .n circle{stroke-width:2;cursor:pointer}
.tree .n text{font-size:12.5px;fill:var(--ink);cursor:pointer;font-family:var(--sans)}
.tree .n text.sub{fill:var(--ink-3);font-size:10.5px}
.tree .n.dim{opacity:.25}
.tree .n.sel text:first-of-type{font-weight:700;fill:var(--prussian)}

/* ---------- outline ---------- */
.outline ul{list-style:none;margin:0;padding-left:18px;border-left:1px dashed var(--rule-2)}
.outline>ul{padding-left:0;border:0}
.outline li{margin:1px 0}
.orow{display:flex;gap:8px;align-items:center;padding:4px 8px;border-radius:var(--r-s);cursor:pointer}
.orow:hover{background:var(--sheet)}
.orow.sel{background:var(--sheet);outline:1px solid var(--rule-2)}
.orow .tw{width:14px;color:var(--ink-3);flex:none;text-align:center}
.orow .nm{flex:1;min-width:0}
.orow .nm small{color:var(--ink-3);margin-left:6px}
.orow .ct{color:var(--ink-2);font-size:var(--fs-1);font-variant-numeric:tabular-nums;flex:none}
.lvtag{font-family:var(--mono);font-size:10px;border:1px solid var(--rule-2);border-radius:4px;padding:0 4px;color:var(--ink-3);flex:none}
.mbar{display:flex;width:90px;height:7px;border-radius:4px;overflow:hidden;background:var(--sunk);flex:none;max-width:100%}
.mbar i{display:block;height:100%}

/* ---------- tables, cards, prose ---------- */
table{border-collapse:collapse;width:100%}
th,td{text-align:left;vertical-align:top;padding:7px 9px;border-bottom:1px solid var(--rule)}
th{font-size:var(--fs-0);color:var(--ink-3);font-weight:600;text-transform:uppercase;letter-spacing:.05em;position:sticky;top:0;background:var(--sheet)}
td{font-variant-numeric:tabular-nums}
.heat td.c{text-align:center;cursor:pointer;min-width:46px}
.heat td.c:hover{outline:2px solid var(--prussian);outline-offset:-2px}
.heat th.rot{white-space:nowrap;text-transform:none;letter-spacing:0;font-size:var(--fs-1)}
.card{background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r-l);padding:16px 18px;margin-bottom:16px}
.card h3{margin:0 0 10px;font-family:var(--display);font-weight:500;font-size:var(--fs-4)}
.scroll{overflow-x:auto}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:16px}
.prose{max-width:76ch;font-size:var(--fs-3)}
.prose h2{font-family:var(--display);font-weight:500;font-size:var(--fs-5);line-height:1.2;margin:34px 0 10px;letter-spacing:-.01em}
.prose h2:first-child{margin-top:4px}
.prose h3{font-family:var(--display);font-weight:500;font-size:var(--fs-4);margin:24px 0 8px}
.prose p{margin:0 0 12px}
.prose li{margin:4px 0}
.prose table{font-size:var(--fs-2);margin:8px 0 16px}
.prose code,.mono{font-family:var(--mono);font-size:.86em}
.prose.wide{max-width:none}
.solo .prose{margin-inline:auto}
.calc{max-width:76ch;margin:30px auto 0}

/* ---------- specimen card (detail) ---------- */
.detail .idl{font-family:var(--mono);font-size:var(--fs-0);color:var(--ink-3)}
.detail h2{margin:4px 0 2px;font-family:var(--display);font-weight:500;font-size:var(--fs-5);line-height:1.15;letter-spacing:-.01em}
.detail .zhn{color:var(--ink-2);font-size:var(--fs-3)}
.detail .def{margin:12px 0;font-size:var(--fs-3)}
.kv{display:grid;grid-template-columns:100px minmax(0,1fr);gap:8px 12px;font-size:var(--fs-1);margin:14px 0;padding-top:12px;border-top:1px solid var(--rule)}
.kv dt{color:var(--ink-3);text-transform:uppercase;font-size:var(--fs-0);letter-spacing:.05em;padding-top:2px}
.kv dd{margin:0;min-width:0}
.pill{display:inline-block;border:1px solid var(--rule-2);border-radius:999px;padding:0 8px;font-size:var(--fs-0);margin:1px 4px 2px 0;white-space:nowrap;color:var(--ink-2);background:var(--sheet)}
a.pill{text-decoration:none;color:var(--prussian)}
a.pill:hover{border-color:var(--prussian)}
.need{display:inline-block;border-radius:4px;padding:0 6px;font-size:10.5px;font-weight:600;color:var(--need-ink);white-space:nowrap;vertical-align:1px}
.need.open{margin-left:4px;opacity:.85;outline:1px dashed var(--ink-3);outline-offset:1px}
.nktog{display:inline-flex;gap:4px;margin:0 8px 0 2px;padding-right:10px;border-right:1px solid var(--rule-2)}
.chip.nk{font-weight:500}
.nkrow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px;font-size:var(--fs-0);color:var(--ink-3)}
.nkrow .nktog{border-right:0;padding-right:0}
.sect{margin-top:18px;border-top:1px solid var(--rule);padding-top:14px}
.sect h4{margin:0 0 10px;font-size:var(--fs-0);color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.kids button{display:flex;justify-content:space-between;gap:10px;width:100%;text-align:left;background:none;border:0;padding:6px 8px;border-radius:var(--r-s)}
.kids button:hover{background:var(--sunk)}
.kids small{color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums}
.task{border:1px solid var(--rule);border-radius:var(--r-m);padding:10px 12px;margin:8px 0;background:var(--sheet)}
.task.hide{display:none}
.task .t{font-weight:600;line-height:1.35}
.task .p{margin:5px 0 7px;color:var(--ink);font-size:var(--fs-2)}
.task .m{font-size:var(--fs-0);color:var(--ink-2);margin-top:3px;overflow-wrap:anywhere}
.task .m b{color:var(--ink-3);font-weight:500;text-transform:uppercase;letter-spacing:.04em;font-size:10px}
.cbox textarea{width:100%;min-height:76px;border:1px solid var(--rule-2);border-radius:var(--r-m);padding:9px;background:var(--paper)}
.cbox .row{display:flex;gap:6px;align-items:center;margin-top:8px;flex-wrap:wrap}
.cbox input{border:1px solid var(--rule-2);border-radius:var(--r-s);padding:5px 9px;background:var(--paper);width:150px;max-width:100%}
.btn{background:var(--ink);color:var(--paper);border:0;border-radius:999px;padding:6px 14px;font-size:var(--fs-1);font-weight:600}
.btn.sec{background:var(--sunk);color:var(--ink);font-weight:500;border:1px solid var(--rule)}
.btn.sec:hover{border-color:var(--rule-2)}
.row.dl{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 4px;align-items:center}
.cm{border-left:3px solid var(--rule-2);padding:4px 10px;margin:8px 0;font-size:var(--fs-1)}
.cm small{color:var(--ink-3)}
.empty{color:var(--ink-3);font-style:italic}
.kbd{font-family:var(--mono);font-size:11px;border:1px solid var(--rule-2);border-radius:4px;padding:0 4px}
mark{background:var(--hilite);color:var(--hilite-ink);border-radius:2px}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:var(--fs-1);color:var(--ink-2);margin:6px 0 12px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px}
.notes-zh{font-size:var(--fs-3)}
.note{font-size:var(--fs-1);color:var(--ink-2);margin-top:8px}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--rule)}
.foot .wrap{display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between;padding-block:18px 28px;font-size:var(--fs-1);color:var(--ink-3)}

@media (max-width:640px){
  .bt{font-size:17px}.brand .zh{display:none}
  .detail{padding:16px 16px 22px}
  .kv{grid-template-columns:minmax(0,1fr)}.kv dt{padding-top:6px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.language-switch a{text-decoration:none;display:inline-flex;align-items:center}