/* 御製翻譯四書五經 review site — tokens shared with viz_template.html and
   scan_viewer_template.html so the standalone site matches the artifacts. */
:root{
  --ground:#f4f3ee; --surface:#fcfbf8; --ink:#232830; --muted:#6a7280;
  --line:#dcdad2; --accent:#33527d; --accent-soft:#e6ebf3;
  --man:#38635c; --chi:#8a4b1e; --warn:#a63a2c; --warn-soft:#f3e2dd;
  --ok:#3d6b46; --ok-soft:#e2ecdf; --chip:#eceae3; --lemma:#96621d; --paper:#fffdf7;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#141822; --surface:#1b2130; --ink:#dde1e8; --muted:#8a93a3;
    --line:#2c3446; --accent:#84a6d6; --accent-soft:#243350;
    --man:#79b8ad; --chi:#d9a06a; --warn:#d4826f; --warn-soft:#3d2620;
    --ok:#8fbf94; --ok-soft:#22331f; --chip:#242b3b; --lemma:#d9a75e; --paper:#e9e6dc;
  }
}
:root[data-theme="dark"]{
  --ground:#141822; --surface:#1b2130; --ink:#dde1e8; --muted:#8a93a3;
  --line:#2c3446; --accent:#84a6d6; --accent-soft:#243350;
  --man:#79b8ad; --chi:#d9a06a; --warn:#d4826f; --warn-soft:#3d2620;
  --ok:#8fbf94; --ok-soft:#22331f; --chip:#242b3b; --lemma:#d9a75e; --paper:#e9e6dc;
}
*{box-sizing:border-box}
body{background:var(--ground);color:var(--ink);margin:0;height:100vh;
  display:flex;flex-direction:column;overflow:hidden;
  font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang TC","Noto Sans CJK TC",sans-serif}
.zh{font-family:"Songti TC","Noto Serif CJK TC","Noto Serif TC",SimSun,serif}
a{color:var(--accent)}

header{padding:12px 18px 9px;border-bottom:1px solid var(--line);background:var(--surface);flex:none}
header h1{margin:0;font-size:17px;font-weight:650}
header h1 .zh{font-weight:600;color:var(--accent);font-size:20px;margin-right:6px}
header .stats{color:var(--muted);font-size:12.5px;margin-top:3px;font-variant-numeric:tabular-nums}
#menu{display:none;border:1px solid var(--line);background:var(--chip);color:var(--ink);
  border-radius:6px;padding:3px 9px;cursor:pointer;margin-right:6px}

.wrap{flex:1;display:flex;min-height:0}
nav{width:252px;flex:none;border-right:1px solid var(--line);background:var(--surface);
  display:flex;flex-direction:column;min-height:0}
nav .box{padding:10px 12px;border-bottom:1px solid var(--line)}
nav input,.searchbar input{width:100%;padding:6px 9px;border:1px solid var(--line);
  border-radius:6px;background:var(--ground);color:var(--ink);font-size:13px}
nav input:focus,.searchbar input:focus{outline:2px solid var(--accent);outline-offset:-1px}
#tree{overflow-y:auto;flex:1}
#tree details{border-bottom:1px solid var(--line)}
#tree details:last-child{border-bottom:0}
#tree summary{list-style:none;cursor:pointer;display:flex;align-items:baseline;gap:6px;user-select:none}
#tree summary::-webkit-details-marker{display:none}
#tree summary::before{content:"▸";flex:none;width:10px;font-size:10px;color:var(--muted);transition:transform .12s}
#tree details[open]>summary::before{transform:rotate(90deg)}
#tree summary:hover{background:var(--accent-soft)}
.bk>summary{padding:8px 10px 6px;font-size:13px;font-weight:600}
.bk>summary .zh{color:var(--accent)}
.bk>summary .key{color:var(--muted);font-weight:400;font-size:11.5px}
.bk>summary .st{margin-left:auto;font-weight:400;font-size:11px;color:var(--muted);white-space:nowrap}
.bk.empty>summary{cursor:default;opacity:.7}
.bk.empty>summary::before{visibility:hidden}
.vl>summary{padding:5px 10px 4px 22px;font-size:11.5px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted);font-weight:600}
.vl>summary .n{margin-left:auto;font-weight:400;letter-spacing:0;text-transform:none;
  font-variant-numeric:tabular-nums}
.vl.sel>summary{color:var(--accent)}
.story{display:flex;justify-content:space-between;gap:8px;width:100%;text-align:left;border:0;
  background:none;color:var(--ink);cursor:pointer;padding:4px 14px;font-size:13.5px}
.story:hover{background:var(--accent-soft)}
.story.sel{background:var(--accent-soft);color:var(--accent);font-weight:600}
.story .n{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px}
.vl .story{padding-left:38px}
.bk>.story{padding-left:24px}

main{flex:1;display:flex;flex-direction:column;min-height:0}
.searchbar{padding:10px 18px;border-bottom:1px solid var(--line);background:var(--surface);
  display:flex;gap:10px;align-items:center;flex:none;flex-wrap:wrap}
.searchbar input{max-width:400px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--chip);color:var(--muted);
  border-radius:99px;padding:3px 10px;font-size:12px;cursor:pointer}
.chip.on{background:var(--accent);border-color:var(--accent);color:var(--surface)}
.count{color:var(--muted);font-size:12.5px;font-variant-numeric:tabular-nums}
.legend{color:var(--muted);font-size:11.5px}
.legend .sw{display:inline-block;width:9px;height:9px;border-radius:2px;vertical-align:-1px;margin:0 3px 0 8px}

#pairs{overflow-y:auto;flex:1;padding:14px 18px 40px}
.storytitle{font-size:21px;font-weight:600;margin:10px 0 2px}
.storymeta{color:var(--muted);font-size:12.5px;margin-bottom:14px;font-variant-numeric:tabular-nums}
.sec{font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);
  font-weight:600;margin:14px 0 6px}
.pair{background:var(--surface);border:1px solid var(--line);border-radius:8px;
  padding:10px 14px 9px;margin-bottom:8px;max-width:880px}
.pair.adj{border-left:3px solid var(--accent)}
.pair.standalone{border-style:dashed}
.pair.lit{outline:2px solid var(--accent);outline-offset:-1px}
.pair .top{display:flex;gap:10px;align-items:baseline}
.sid{color:var(--muted);font-size:11.5px;font-variant-numeric:tabular-nums;flex:none;min-width:2.4em}
.pair .zh{font-size:16.5px;line-height:1.75;margin:0}
.pair .ph{color:var(--muted);font-style:italic;font-size:13px}
.pair .mnc{color:var(--man);font-size:13.5px;line-height:1.55;
  margin:5px 0 0 calc(2.4em + 10px);word-break:break-word}
.pair .meta{margin:5px 0 0 calc(2.4em + 10px);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.badge{font-size:10.5px;border-radius:4px;padding:1px 6px;letter-spacing:.03em;
  background:var(--chip);color:var(--muted)}
.b-flag{background:var(--warn-soft);color:var(--warn)}
.b-ok{background:var(--ok-soft);color:var(--ok)}
.b-warn{background:var(--warn-soft);color:var(--warn)}
.b-adj{background:var(--accent-soft);color:var(--accent);font-weight:600}
.b-note{background:var(--chip);color:var(--lemma)}
.b-page.pg-btn{cursor:pointer;border:1px solid var(--line);background:var(--surface);
  color:var(--accent);font-weight:600;text-decoration:none}
.b-page.pg-btn:hover{background:var(--accent-soft)}
.adjbox{margin:6px 0 0 calc(2.4em + 10px);font-size:12.5px;color:var(--muted)}
.adjbox summary{cursor:pointer;color:var(--accent)}
.adjbox .body{margin-top:5px;padding:7px 10px;border-left:2px solid var(--accent-soft);display:grid;gap:4px}
.adjbox .k{font-size:10.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-right:6px}
.adjbox .before{color:var(--man);opacity:.7;text-decoration:line-through;
  text-decoration-color:var(--warn);word-break:break-word}
.adjbox .reason{color:var(--ink)}
mark{background:var(--accent-soft);color:var(--accent);border-radius:2px;padding:0 1px}
.msg,.hint{color:var(--muted);padding:26px 18px;max-width:560px}

.mw{cursor:default}
.mw.lx{border-bottom:1px dotted var(--man)}
.mw.ll{color:var(--lemma);border-bottom:1px dotted var(--lemma)}
.mw.lx:hover,.mw.ll:hover{background:var(--accent-soft)}
#tip{position:fixed;z-index:20;max-width:380px;background:var(--surface);border:1px solid var(--line);
  border-radius:8px;padding:9px 12px;box-shadow:0 6px 20px rgba(0,0,0,.18);font-size:13px;pointer-events:none}
#tip .hw{font-weight:650;color:var(--man)}
#tip .hw.viaL{color:var(--lemma)}
#tip .via{color:var(--muted);font-size:11.5px;margin-left:6px}
#tip .sense{margin-top:5px;line-height:1.45}
#tip .sense .zh{font-size:14.5px}
#tip .def{color:var(--muted);font-size:12px}

/* overview table */
.overview{padding:18px 22px;max-width:1000px;overflow-y:auto}
.overview h2{font-size:17px;margin:0 0 4px}
.overview p{color:var(--muted);max-width:660px;margin:0 0 14px}
.overview .tw{overflow-x:auto}
.overview table{border-collapse:collapse;width:100%;font-size:13px;font-variant-numeric:tabular-nums}
.overview th{text-align:left;font-size:11px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--muted);border-bottom:1px solid var(--line);padding:6px 8px;white-space:nowrap}
.overview td{padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.overview td.num{text-align:right}
.overview tr.has{cursor:pointer}
.overview tr.has:hover td{background:var(--accent-soft)}
.overview .grp td{padding-top:14px;font-size:11px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--muted);border-bottom:0}
.stage{display:inline-block;padding:1px 7px;border-radius:9px;font-size:11.5px;
  background:var(--chip);color:var(--muted);white-space:nowrap}
.stage.done{background:var(--ok-soft);color:var(--ok)}
.stage.part{background:var(--warn-soft);color:var(--warn)}
.stage.run{background:var(--accent-soft);color:var(--accent)}

/* page viewer */
#pv{width:470px;flex:none;border-left:1px solid var(--line);background:var(--surface);
  display:flex;flex-direction:column;min-height:0}
#pv[hidden]{display:none}
#pv .bar{display:flex;gap:6px;align-items:center;padding:7px 10px;
  border-bottom:1px solid var(--line);flex-wrap:wrap}
#pv .bar .pg{font-weight:600;font-variant-numeric:tabular-nums;margin-right:auto;
  display:flex;gap:6px;align-items:center}
#pv .bar select{border:1px solid var(--line);background:var(--chip);color:var(--ink);
  border-radius:6px;padding:3px 6px;font-size:12.5px;max-width:170px}
#pv .bar button,#pv .bar label{border:1px solid var(--line);background:var(--chip);color:var(--ink);
  border-radius:6px;padding:3px 9px;font-size:12.5px;cursor:pointer;line-height:1.3}
#pv .bar button:disabled{opacity:.4;cursor:default}
#pv .bar label{display:inline-flex;align-items:center;gap:4px;user-select:none}
#pv .bar label.on{background:var(--accent);border-color:var(--accent);color:var(--surface)}
#pv .bar label input{display:none}
#pv .bar input[type=range]{width:84px}
#pv .body{flex:1;overflow:auto;min-height:0;background:var(--ground);position:relative;padding:12px}
#pv canvas{display:block;cursor:crosshair;box-shadow:0 2px 10px rgba(0,0,0,.18);
  margin:0 auto;background:var(--paper);max-width:100%}
#pv .foot{padding:5px 10px;border-top:1px solid var(--line);font-size:11.5px;color:var(--muted);
  min-height:26px;font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
button:focus-visible,select:focus-visible,.story:focus-visible,.chip:focus-visible{
  outline:2px solid var(--accent);outline-offset:1px}

@media (max-width:1100px){#pv{width:390px}}
@media (max-width:820px){
  nav{position:absolute;z-index:5;height:100%;box-shadow:2px 0 12px rgba(0,0,0,.2)}
  nav[hidden]{display:none}
  #menu{display:inline-block}
  #pv{position:absolute;right:0;z-index:6;height:100%;width:min(100%,430px);
    box-shadow:-2px 0 12px rgba(0,0,0,.2)}
}
@media (prefers-reduced-motion:no-preference){.pair{transition:border-color .12s}}

/* Research workspace — restrained ink, warm paper, generous reading space. */
:root{--ground:#f6f5f0;--surface:#fffefa;--ink:#293b39;--muted:#727b75;--line:#e1e4db;--accent:#286457;--accent-soft:#e8f0e9;--man:#287668;--chi:#a46b35;--chip:#eff0e9;--lemma:#96621d}
body{height:100dvh;font-size:14px;line-height:1.6}
[hidden]{display:none!important}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}button,input,select{accent-color:var(--accent)}
header{height:82px;display:flex;align-items:center;gap:18px;padding:0 28px;background:var(--surface)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink)}.brand strong{display:block;font-size:22px;letter-spacing:.12em;font-weight:600}.brand small{display:block;font-size:9px;letter-spacing:.18em;color:var(--muted);margin-top:2px}.seal{display:grid;place-items:center;width:40px;height:44px;border:1px solid #a45f4d;color:#a45f4d;font-size:26px;border-radius:3px}
#menu{display:block;margin:0;background:none;border:0;padding:8px;font-size:19px;color:var(--muted)}.header-end{margin-left:auto;display:flex;align-items:center;gap:24px}.edition{font-size:12px;color:var(--muted)}.quiet{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 10px;color:var(--ink)}.quiet:hover{background:var(--accent-soft)}
.wrap{position:relative}nav{width:246px;background:#f0f1e9}.nav-heading{display:flex;justify-content:space-between;align-items:center;padding:25px 20px 10px}.eyebrow{font-size:10px;font-weight:650;letter-spacing:.15em;color:var(--muted)}.muted{color:var(--muted)}.nav-heading .muted{font-size:12px}nav .box{padding:8px 16px 18px;border:0}nav input{padding:9px 10px;background:#fafbf6;font-size:12px}
#tree{padding:0 10px 20px}#tree details{border:0}.bk>summary{flex-wrap:wrap;gap:5px;padding:12px 8px;align-items:center}.bk>summary .zh{font-size:17px;color:var(--ink)}.bk>summary .key{display:none}.bk>summary .st{font-size:10px}.vl>summary{font-size:10px;letter-spacing:0;padding:9px 6px 9px 21px;overflow-wrap:anywhere}.vl>summary .n{white-space:nowrap}.story{font-size:13px;padding:10px 12px;border-radius:5px}.story.sel{background:#dde8df}.vl .story{padding:8px 8px 8px 34px}.nav-footer{border-top:1px solid var(--line);padding:17px;font-size:10px;color:var(--muted);display:flex;gap:7px;align-items:center}.status-dot{width:6px;height:6px;border-radius:50%;background:#598565;flex:none}
main{min-width:0}.searchbar{padding:20px 28px 12px;display:block;background:var(--ground)}.search-input{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:7px;background:var(--surface);padding:0 12px}.search-input>span{font-size:24px;color:var(--muted)}.searchbar input{max-width:none;border:0;background:none;padding:12px 0;font-size:13px;min-width:0}.searchbar input:focus{outline:none}.search-input:focus-within{outline:2px solid var(--accent)}kbd{font:11px ui-monospace,monospace;padding:2px 5px;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:var(--surface)}.filter-row{display:flex;gap:10px;align-items:center;margin-top:13px;flex-wrap:wrap}.chips{gap:3px}.chip{background:none;border-color:transparent;border-radius:5px;font-size:11px;padding:5px 9px}.chip.on{background:var(--accent-soft);border-color:#ceded2;color:var(--accent);font-weight:600}.count{font-size:11px;margin-left:auto;white-space:nowrap}
#pairs{padding:22px 28px 50px;scroll-behavior:auto}.storytitle{font-size:29px;font-weight:500;margin:0 0 2px}.storymeta{font-size:11px;margin-bottom:24px}.pair{max-width:none;margin:0 0 14px;padding:20px 22px;border-radius:8px;border-color:var(--line);box-shadow:0 2px 3px #243b2c03}.pair.adj{border-left:1px solid var(--line)}.pair.lit{outline:2px solid var(--accent);background:#fcfff9;box-shadow:0 4px 16px #2346320b}.pair .top{display:block}.sid{display:block;font-size:10px;letter-spacing:.12em;margin-bottom:12px}.sid::before{content:'PAIR ';}.pair .zh{font-size:21px;line-height:1.9;overflow-wrap:anywhere}.pair .mnc{font-family:Georgia,'Times New Roman',serif;font-size:17px;line-height:1.85;margin:13px 0 0;padding-top:12px;border-top:1px solid #edefe6}.pair .meta{margin:17px 0 0;gap:6px}.badge{font-size:10px;letter-spacing:0;padding:3px 7px}.b-page.pg-btn{padding:5px 9px;border-radius:5px;font-size:11px}.pair.lit .meta button.pg-btn{background:var(--accent);color:white;border-color:var(--accent)}.adjbox{margin:12px 0 0;font-size:12px}.adjbox summary{font-size:11px}.reading-footer{padding:10px 28px;border-top:1px solid var(--line);font-size:10px;display:flex;justify-content:space-between;gap:12px;color:var(--muted);background:var(--surface)}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:4px}.dot.man{background:var(--man)}.dot.chi{background:var(--chi);margin-left:10px}
.overview{padding:6px 0;max-width:1180px;margin:auto;overflow:visible}.overview .intro{display:flex;align-items:start;justify-content:space-between;gap:30px;margin:6px 0 27px}.overview h2{font-family:Georgia,'Songti TC',serif;font-size:37px;line-height:1.2;font-weight:400;letter-spacing:-.03em;margin:12px 0}.overview p{font-size:13px;max-width:510px;line-height:1.8;margin-bottom:0}.collection-mark{font-family:'Songti TC',serif;writing-mode:vertical-rl;font-size:27px;letter-spacing:.2em;color:#a5b1a0;border-left:1px solid var(--line);padding-left:24px;margin:12px 10px 0 0}.metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin-bottom:25px}.metric{padding:0 20px;border-right:1px solid var(--line)}.metric:first-child{padding-left:0}.metric:last-child{border:0}.metric strong{font-family:Georgia,serif;font-size:26px;font-weight:400;display:block}.metric span{font-size:10px;color:var(--muted)}.collection-heading{display:flex;align-items:baseline;justify-content:space-between;margin:22px 0 12px}.collection-heading h3{font-size:12px;font-weight:500;margin:0}.collection-heading span{font-size:10px;color:var(--muted)}.book-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.book-card{display:flex;text-align:left;align-items:center;gap:16px;border:1px solid var(--line);border-radius:7px;background:var(--surface);padding:20px;color:var(--ink);min-width:0}.book-card:hover{border-color:#91af9b;background:#fafff6;transform:translateY(-1px)}.book-glyph{font-family:'Songti TC',serif;font-size:27px;color:var(--accent);border-right:1px solid var(--line);padding-right:16px;white-space:nowrap}.book-info{min-width:0}.book-info strong{display:block;font-size:12px;font-weight:500}.book-info small{font-size:10px;color:var(--muted);display:block;margin-top:4px}.book-arrow{margin-left:auto;color:#839580}.pipeline{margin-top:28px;border-top:1px solid var(--line);padding-top:15px}.pipeline>summary{cursor:pointer;color:var(--muted);font-size:11px}.pipeline .tw{margin-top:14px}.overview table{font-size:11px}.overview th{font-size:9px}.overview td{padding:9px 6px}.overview .pipeline p{margin:12px 0;font-size:11px}
#pv{width:48%;min-width:370px;background:var(--surface)}.viewer-heading{display:flex;justify-content:space-between;align-items:center;padding:18px 18px 12px}.viewer-heading strong{display:block;font-size:14px;margin-top:3px;font-weight:500}.viewer-heading button{border:0}#pv .bar{padding:0 18px 13px;display:block}#pv .bar .pg{display:flex;gap:8px;width:100%;margin:0}#pv .bar select{flex:1;max-width:none;min-width:0;background:var(--ground);padding:6px 8px;font-size:11px}#pv .bar button{padding:4px 12px;background:var(--surface);font-size:18px}.layers{padding:10px 18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);font-size:10px}.layers label{display:flex;align-items:center;gap:3px;cursor:pointer;color:var(--muted)}.layers label.on{color:var(--ink)}.layers input{margin:0;width:12px;height:12px}#pv .body{padding:16px 12px;background:#e6e8e0;background-image:radial-gradient(#cad0c7 .7px,transparent .7px);background-size:9px 9px}#pv canvas{max-width:none;margin:0 auto;box-shadow:0 3px 20px #243b2c20}.zoom-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-top:1px solid var(--line)}.zoom-bar button{font-size:10px;white-space:nowrap}.zoom-bar input{width:60px;min-width:30px;flex:1}.zoom-bar output{font-size:10px;width:33px;text-align:right}.pair-navigation{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-top:1px solid var(--line);gap:5px}.pair-navigation button{font-size:10px}.pair-navigation span{font-size:10px;color:var(--muted)}#pv .foot{font-size:9px;padding:7px 14px}.sec{margin:20px 0 12px;font-size:10px}
dialog{border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);padding:28px;max-width:540px;width:calc(100% - 32px);box-shadow:0 20px 80px #20383030}dialog::backdrop{background:#20383055;backdrop-filter:blur(3px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between}dialog h2{font:30px Georgia,serif}dialog p{font-size:13px;line-height:1.8}.shortcuts{display:flex;flex-wrap:wrap;gap:16px;font-size:11px;margin:24px 0}.mw:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(min-width:1500px){#pv{width:49%}.pair{padding:24px 28px}.book-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1150px){nav{width:210px}.searchbar{padding:16px 18px 12px}#pairs{padding:20px 18px 40px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pair{padding:16px}.reading-footer>span:last-child{display:none}.pair .zh{font-size:19px}.pair .mnc{font-size:16px}#pv{min-width:350px;width:46%}}
@media(max-width:820px){header{height:70px;padding:0 14px;gap:9px}.brand strong{font-size:18px}.brand small{font-size:8px}.seal{width:32px;height:36px;font-size:23px}.edition{display:none}.header-end{gap:0}nav{position:absolute;left:0;top:0;bottom:0;width:260px;z-index:5;height:100%;box-shadow:6px 0 20px #20383020}#pv{position:absolute;inset:0 0 0 auto;width:min(100%,540px);min-width:0;height:100%;z-index:6}.overview h2{font-size:31px}.collection-mark{display:none}.layers{gap:9px}}
@media(max-width:480px){.brand strong{font-size:16px}.brand small{font-size:7px}.brand{gap:8px}.header-end button span{display:none}.searchbar{padding:14px 14px 10px}.searchbar input{font-size:12px}.chip{padding:4px 7px;font-size:10px}#pairs{padding:18px 14px 36px}.book-grid{grid-template-columns:1fr}.book-card{padding:16px}.overview h2{font-size:30px}.metric{padding:0 12px}.metric strong{font-size:23px}.pair .zh{font-size:20px}.count{margin-left:0}.reading-footer{padding:8px 14px}.collection-heading span{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Whole-page inspection: only the compact heading is needed while reading. */
.viewer-actions{display:flex;align-items:center;gap:5px;flex:none}
.viewer-actions .quiet{font-size:11px;padding:5px 8px;border:1px solid var(--line)}
.viewer-actions [aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}
#pv.settings-hidden>.bar,#pv.settings-hidden>.layers,#pv.settings-hidden>.zoom-bar,
#pv.settings-hidden>.pair-navigation,#pv.settings-hidden>.foot{display:none}
#pv .body.fit-page{overflow:hidden;display:flex;align-items:center;justify-content:center}
#pv .body.fit-page canvas{margin:0;flex:none}
#pv>.viewer-heading,#pv>.bar,#pv>.layers,#pv>.zoom-bar,#pv>.pair-navigation,#pv>.foot{flex-shrink:0}
@media(max-width:820px){
  .wrap{flex-direction:column}
  #pv{position:relative;inset:auto;width:100%;height:48%;flex:none;box-shadow:none;border-left:0;border-top:1px solid var(--line)}
  .viewer-heading{padding:8px 12px}
  .viewer-heading .eyebrow{display:none}
  .viewer-heading strong{margin:0;font-size:12px}
  .viewer-actions .quiet{font-size:10px;padding:4px 6px}
  nav{z-index:8}
}

/* Adjustable columns; the sentence column takes the remaining space. */
@media(min-width:821px){
  #nav{width:var(--library-width,246px);min-width:160px;border-right:0}
  #pv{width:var(--scan-width,48%);min-width:260px;border-left:0}
  .wrap>main{min-width:240px}
  .panel-divider{width:7px;flex:0 0 7px;cursor:col-resize;background:var(--ground);position:relative;touch-action:none}
  .panel-divider::after{content:'';position:absolute;top:0;bottom:0;left:3px;width:1px;background:var(--line)}
  .panel-divider:hover,.panel-divider:focus-visible,.panel-divider.dragging{background:var(--accent-soft);outline:none}
  .panel-divider:hover::after,.panel-divider:focus-visible::after,.panel-divider.dragging::after{background:var(--accent);width:3px;left:2px}
  #nav[hidden]+.panel-divider,.wrap:has(#pv[hidden]) #resize-scan{display:none}
  .wrap:has(#pv:not([hidden])) .book-grid{grid-template-columns:1fr}
}
body.resizing-panels{cursor:col-resize;user-select:none}
@media(max-width:820px){.panel-divider{display:none}}

/* OCRalpha-inspired interface: crisp neutrals, blue actions, compact controls. */
:root{
  --ground:#f7f8fa; --surface:#fff; --ink:#202632; --muted:#687386;
  --line:#e1e5eb; --accent:#334e78; --accent-soft:#edf2f9;
  --man:#356c63; --chi:#9a6331; --warn:#a43d35; --warn-soft:#fbeceb;
  --ok:#34724b; --ok-soft:#e9f5ed; --chip:#f1f3f6; --lemma:#8b5e1a; --paper:#fffdf8;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --ground:#171a21; --surface:#20242d; --ink:#eef1f6; --muted:#a0a9b8;
  --line:#343b48; --accent:#9bb5dc; --accent-soft:#2b3545;
  --man:#83c1b5; --chi:#e0ac77; --warn:#ee9388; --warn-soft:#422c2d;
  --ok:#8fd0a3; --ok-soft:#273b30; --chip:#292f3a; --lemma:#ddb46e; --paper:#ede8db;
  color-scheme:dark;
}
body{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang TC","Noto Sans CJK TC",sans-serif}
header{height:64px;padding:0 22px;gap:14px;box-shadow:0 1px 2px #10182808}
.brand{gap:10px}.brand strong{font-size:19px;letter-spacing:.04em}.brand small{font-size:9px;letter-spacing:.13em}
.seal{width:34px;height:36px;font-size:22px;border-color:#b5bfd0;color:var(--accent);border-radius:6px}
#menu{border-radius:7px}.header-end{gap:10px}.edition{padding:5px 9px;border:1px solid var(--line);border-radius:999px;background:var(--ground);font-size:11px}
.quiet{border:1px solid var(--line);border-radius:7px;background:var(--surface);padding:6px 9px;transition:background .15s,border-color .15s,color .15s}
.quiet:hover{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 25%,var(--line))}
.theme-toggle{width:34px;height:34px;padding:0;font-size:17px;line-height:1}
nav{background:var(--surface)}.nav-heading{padding:20px 18px 10px}
nav .box{padding:8px 14px 14px}nav input,.searchbar input{border-radius:7px;background:var(--ground);border-color:var(--line);padding:8px 10px}
nav input:focus,.searchbar input:focus{outline:0}nav .box:focus-within{outline:0}
#tree details{border-radius:7px}.bk>summary{padding:10px 8px}.story{transition:background .12s,color .12s}.story.sel{background:var(--accent-soft);color:var(--accent)}
.searchbar{padding:16px 24px 12px;background:var(--ground)}
.search-input{border-radius:9px;background:var(--surface);box-shadow:0 1px 2px #10182808}
.searchbar input{background:transparent}.search-input:focus-within{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 17%,transparent)}
.chip{border-radius:6px;color:var(--muted);transition:background .12s,border-color .12s}.chip:hover{background:var(--surface);border-color:var(--line)}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
#pairs{padding:20px 24px 44px}.storytitle{font-size:27px;font-weight:550;letter-spacing:-.02em}.storymeta{margin-bottom:20px}
.pair{border-radius:11px;background:var(--surface);box-shadow:0 1px 2px #1018280a;padding:18px 20px;margin-bottom:12px;transition:border-color .15s,box-shadow .15s,background .15s}
.pair:hover{border-color:color-mix(in srgb,var(--accent) 28%,var(--line));box-shadow:0 3px 10px #1018280b}
.pair.adj{border-left:3px solid var(--accent)}.pair.lit{outline:2px solid var(--accent);outline-offset:1px;background:var(--surface);box-shadow:0 0 0 4px var(--accent-soft)}
.pair .zh{font-size:20px;line-height:1.8}.pair .mnc{border-top-color:var(--line)}
.badge{border-radius:6px}.b-page.pg-btn{border-radius:7px}.pair.lit .meta button.pg-btn{background:var(--accent);border-color:var(--accent)}
.reading-footer{background:var(--surface)}
#pv{background:var(--surface)}.viewer-heading{padding:14px 16px 10px}.viewer-actions .quiet{border-radius:7px}
#pv .bar select,#pv .bar button,#pv .bar label{border-radius:7px}
#pv .body{background-color:#eef1f5;background-image:radial-gradient(#c4ccd8 .7px,transparent .7px)}
:root[data-theme="dark"] #pv .body{background-color:#171b23;background-image:radial-gradient(#3b4350 .7px,transparent .7px)}
#pv canvas{box-shadow:0 3px 14px #10182825;border-radius:2px}
button:focus-visible,select:focus-visible,.story:focus-visible,.chip:focus-visible,.quiet:focus-visible,
input:focus-visible,.book-card:focus-visible,summary:focus-visible{outline:0;box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
dialog{border-radius:14px;box-shadow:0 24px 70px #10182835}
:root[data-theme="dark"] .pair.lit{background:var(--surface)}
:root[data-theme="dark"] mark{background:#3a4558;color:#c4d5f0}
@media(max-width:820px){header{height:60px;padding:0 12px;gap:8px}.header-end{gap:5px}.edition{display:none}.searchbar{padding:14px 14px 10px}#pairs{padding:16px 14px 38px}}

/* Keep search and result count on one compact row after filter chips are removed. */
.searchbar{display:flex;align-items:center;gap:12px}
.search-input{flex:1;min-width:0}
.count{margin-left:0;flex:none;color:var(--muted);font-size:11px;white-space:nowrap}
@media(max-width:560px){.searchbar{align-items:stretch;flex-wrap:wrap}.search-input{flex-basis:100%}.count{margin-left:auto}}
#pair-pagination{flex:none;background:var(--surface);border-top:1px solid var(--line)}
#pair-pagination[hidden]{display:none}
.pagination{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px 24px;color:var(--ink)}
.pagination-source{font-size:12px;font-weight:500;line-height:1.5;min-width:0}
.pagination-source small{display:block;color:var(--muted);font-size:10px;font-weight:400}
.pagination-controls{display:flex;align-items:center;gap:6px;flex:none}
.pagination-position{min-width:54px;text-align:center;font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.pagination-position>span{color:var(--muted);font-weight:400}
.pagination .quiet{display:grid;place-items:center;width:30px;height:30px;padding:0;border-radius:8px;font-size:21px;line-height:1;background:var(--surface)}
.pagination .quiet:disabled{opacity:.35;cursor:default}
@media(max-width:820px){.pagination{padding:8px 14px}}
.scan-page-break{display:flex;align-items:center;gap:10px;margin:24px 0 12px;color:var(--accent);font-size:10px;font-weight:700;letter-spacing:.12em}
.scan-page-break::after{content:"";height:1px;flex:1;background:#dce4da}
.b-page-spread{background:#f8ead8!important;border-color:#dfb77f!important;color:#764b1d!important;font-weight:700!important}
.page-inspect{font-size:11px;padding:5px 9px}
#pv .scan-stage{position:relative;flex:1;min-height:0;overflow:hidden}
#pv .scan-stage>.body{position:absolute;inset:0}
/* Small independent controls leave the centre of the scan clear. */
.canvas-tools{position:absolute;inset:0;z-index:3;pointer-events:none}
.tool-rail,.pair-step,.canvas-position,.canvas-zoom{background:var(--surface);background:color-mix(in srgb,var(--surface) 94%,transparent);border:1px solid var(--line);box-shadow:0 2px 8px #14223b12;backdrop-filter:blur(10px);pointer-events:auto}
.tool-rail{position:absolute;top:16px;display:flex;flex-direction:column;padding:3px;gap:3px;border-radius:12px}
.tool-rail-left{left:14px}.tool-rail-right{right:14px}
.tool-rail button,.tool-rail label{position:relative;display:grid;place-items:center;width:32px;height:32px;padding:0;border:0;border-radius:8px;color:var(--muted);background:transparent;cursor:pointer;font-family:inherit;font-size:12px;font-weight:600}
.tool-rail label input{position:absolute;inset:0;opacity:0;margin:0;width:100%;height:100%;cursor:pointer}
.tool-rail label.on,.tool-rail button[aria-pressed="true"]{color:var(--accent);background:var(--accent-soft)}
.tool-rail button:hover,.tool-rail label:hover{background:var(--accent-soft);color:var(--accent)}
.tool-rail label:focus-within{outline:2px solid var(--accent);outline-offset:1px}
.canvas-tools svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.pair-step{position:absolute;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:34px;height:34px;padding:0;border-radius:50%;color:var(--ink);cursor:pointer}
.pair-step-prev{left:16px}.pair-step-next{right:16px}
.pair-step:hover{color:var(--accent);background:var(--accent-soft)}
.pair-step:disabled{opacity:.35;cursor:default}
.canvas-position{position:absolute;bottom:16px;left:16px;border-radius:8px;padding:7px 10px;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.canvas-position:empty{display:none}
.canvas-zoom{position:absolute;right:16px;bottom:16px;z-index:4;display:flex;align-items:center;gap:1px;border-radius:8px;padding:7px 9px;color:var(--muted);font-size:11px}
.canvas-zoom input{width:39px;padding:0;border:0;background:transparent;text-align:right;font-family:inherit;font-size:12px;font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums;appearance:textfield;-moz-appearance:textfield}
.canvas-zoom input::-webkit-inner-spin-button,.canvas-zoom input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.canvas-zoom:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
.canvas-zoom input:focus{outline:none;box-shadow:none}
#pv.settings-hidden .canvas-tools{display:none}
#pv .scan-stage>.body{scrollbar-gutter:stable;overscroll-behavior:contain;cursor:grab}
#pv .scan-stage>.body.panning{cursor:grabbing;user-select:none}
#pv .scan-stage>.body.panning canvas{cursor:grabbing}
#pv-foot.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;padding:0}
@media(max-width:560px){.tool-rail{top:10px}.tool-rail-left{left:8px}.tool-rail-right{right:8px}.pair-step{top:auto;bottom:54px;transform:none}.pair-step-prev{left:10px}.pair-step-next{right:10px}.canvas-position{left:10px;bottom:10px}.canvas-zoom{right:10px;bottom:10px}}
#pv .body.fit-page{display:block;overflow:auto}
.scan-spread{display:flex;align-items:flex-start;justify-content:center;gap:12px;width:max-content;min-width:100%}
.scan-sheet{margin:0;flex:none;text-align:center;min-width:1px}
.scan-sheet figcaption{font-size:11px;font-weight:600;color:var(--ink);line-height:24px}
#pv .scan-sheet canvas{display:block;margin:0}
.scan-notice{font-size:11px;font-weight:600;color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:4px 8px;margin-bottom:8px;text-align:center}
.scan-sheet .msg{width:160px;max-width:40vw;font-size:12px}

.pair[tabindex]{cursor:pointer}
.pair[tabindex]:hover{border-color:#91af9b}
.pair[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pair .zh,.pair .mnc{cursor:text}

/* Sentence permalinks and citation tools. */
.pair .meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pair .sid a{color:inherit;text-decoration:none;border-bottom:1px solid transparent}
.pair .sid a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.pair-share{display:flex;align-items:center;gap:6px;margin-left:auto}
.pair-share .quiet{display:inline-flex;align-items:center;gap:4px;padding:5px 7px;font-size:11px;color:var(--muted)}
.pair-share .quiet:hover{color:var(--accent)}
.pair-share svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
#share-status{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:20;background:var(--ink);color:var(--surface);border-radius:8px;padding:10px 16px;box-shadow:0 3px 14px #0002;font-size:12px;max-width:90vw;text-align:center;pointer-events:none}
#share-status[hidden]{display:none}
#citation-dialog{width:min(660px,calc(100vw - 32px));max-height:85vh;color:var(--ink);background:var(--surface)}
#citation-dialog h2{font-size:23px;margin:12px 0 20px}
.citation-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);padding-bottom:10px}
.citation-tabs button{padding:7px 12px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--muted);font:inherit;font-size:12px;cursor:pointer}
.citation-tabs button[aria-selected="true"]{color:var(--accent);background:var(--accent-soft);font-weight:600}
#citation-preview{padding:16px 0;line-height:1.8;font-size:14px;overflow-wrap:anywhere}
#citation-preview p{margin:0}
#citation-preview pre{white-space:pre-wrap;margin:0;font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace}
.citation-actions{display:flex;flex-wrap:wrap;gap:8px;padding-top:12px;border-top:1px solid var(--line)}