:root{
  --bg:#0e1116; --bg2:#151a22; --card:#171d26; --line:#262e3a;
  --fg:#e8edf5; --dim:#8c9aad; --acc:#4f8cff; --acc2:#22c55e;
  --warn:#f59e0b; --bad:#ef4444; --ok:#22c55e; --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.55}
body{padding-bottom:24px}
button{font-family:inherit;font-size:14px;cursor:pointer;border-radius:10px;border:1px solid var(--line);
  background:var(--bg2);color:var(--fg);padding:9px 14px;transition:.15s}
button:active{transform:scale(.97)}
button.primary{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}
button.ghost{background:transparent}
button.danger{color:#ffb4b4;border-color:#5b2a2a}
button.mini{padding:6px 11px;font-size:13px;border-radius:9px}
button:disabled{opacity:.45;cursor:not-allowed}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 16px 8px;position:sticky;top:0;background:rgba(14,17,22,.92);backdrop-filter:blur(10px);z-index:30}
.brand{display:flex;align-items:center;gap:10px}
.logo{font-size:22px}
.t1{font-weight:700;font-size:17px}
.t2{font-size:12px;color:var(--dim)}

.tabs{display:flex;gap:6px;padding:6px 12px 10px;position:sticky;top:56px;
  background:rgba(14,17,22,.92);backdrop-filter:blur(10px);z-index:29}
.tab{flex:1;padding:8px 0;border-radius:10px;background:transparent;border:1px solid transparent;color:var(--dim);font-size:14px}
.tab.active{background:var(--card);border-color:var(--line);color:var(--fg);font-weight:600}

main{padding:0 12px}
.view{display:none}
.view.active{display:block}

.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;margin-bottom:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:12px}

.segs{display:flex;flex-direction:column;gap:8px}
.seg{display:flex;background:var(--bg2);border:1px solid var(--line);border-radius:11px;padding:3px;gap:3px}
.seg button{flex:1;background:transparent;border:none;color:var(--dim);padding:7px 6px;font-size:13px;border-radius:8px}
.seg button.on{background:var(--acc);color:#fff;font-weight:600}

.filters{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
select{width:100%;background:var(--bg2);color:var(--fg);border:1px solid var(--line);border-radius:9px;padding:8px 9px;font-size:13px}
.qbank-line{display:flex;justify-content:space-between;align-items:center;margin-top:8px;gap:8px}
.hint{color:var(--dim);font-size:12.5px}
.hint.inline{display:flex;align-items:center;gap:8px;margin-top:8px}

.qmeta{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.chip{font-size:11.5px;padding:3px 9px;border-radius:999px;background:#1e2734;color:#cbd8ea;border:1px solid var(--line)}
.chip.dim{color:var(--dim)}
.chip.lv{background:#1c2b3f;color:#9dc4ff;border-color:#28405e}

.qtext{font-size:19px;line-height:1.7;padding:12px;border-radius:12px;background:var(--bg2);
  border:1px solid var(--line);margin-bottom:10px;word-break:break-word}
.qtext.zh{font-size:18px}
.w{cursor:pointer;border-bottom:1px dashed transparent;padding:0 1px;border-radius:3px}
.lookup-mode .w{border-bottom-color:#4f8cff66;background:#4f8cff14}
.w:hover{background:#4f8cff22}
.w.hit{background:#22c55e33}

.qactions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.answer-area textarea{width:100%;background:var(--bg2);color:var(--fg);border:1px solid var(--line);
  border-radius:11px;padding:11px;font-size:15px;line-height:1.6;resize:vertical;font-family:inherit}
.answer-area textarea:focus{outline:none;border-color:var(--acc)}
.row{display:flex;gap:8px;align-items:center;margin-top:10px;flex-wrap:wrap}
.row.next{margin-top:14px}
.row.next button{flex:1}

.voice-panel{margin-top:8px;padding:10px;border:1px dashed var(--line);border-radius:11px;background:#141a22}
.voice-panel .rec{width:100%;background:#1f2b1f;border-color:#2f5230;color:#b6f0b8;font-weight:600}
.voice-panel .rec.on{background:#5b2a2a;border-color:#7a3131;color:#ffcfcf}
.rec-status{font-size:12.5px;color:var(--dim);margin-top:7px;text-align:center}
.rec-live{font-size:13px;color:#9dc4ff;margin-top:6px;min-height:0;text-align:center;word-break:break-word}

.result{margin-top:12px;padding:12px;border-radius:12px;border:1px solid var(--line);background:var(--bg2)}
.result .score{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px}
.result .score.good{color:var(--ok)}
.result .score.mid{color:var(--warn)}
.result .score.bad{color:var(--bad)}
.result ul{margin:8px 0 0;padding-left:18px}
.result li{margin:3px 0;font-size:13.5px}
.result .lab{font-size:12.5px;color:var(--dim);margin-top:10px;letter-spacing:.3px}

.answer-block{margin-top:12px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ab-head{display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:9px 12px;background:#1b222d;font-size:13.5px;font-weight:600}
.ab-body{padding:12px}
.ab-row{margin-bottom:10px}
.ab-row b{font-size:13px;color:#9dc4ff;display:block;margin-bottom:4px}
.ab-body ul{margin:0;padding-left:18px}
.ab-body li{font-size:13.5px;margin:3px 0}
.ref{background:#12202f;border:1px solid #23405c;border-radius:9px;padding:9px 11px;font-size:15px;line-height:1.6}

.next{display:flex}

.list .item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 12px;margin-bottom:9px}
.list .item .top{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:6px}
.list .item .en{font-size:14.5px;line-height:1.6}
.list .item .zh{font-size:14px;color:#cbd8ea;margin-top:4px}
.list .item .your{font-size:13px;color:#ffc9c9;margin-top:6px}
.list .item .ops{display:flex;gap:7px;margin-top:9px;flex-wrap:wrap}
.badge{font-size:11px;padding:2px 8px;border-radius:999px;background:#2a1f1f;color:#ffb4b4;border:1px solid #4a2b2b}

.kv{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:13.5px;padding:6px 0;border-bottom:1px dashed #222a36}
.kv:last-child{border-bottom:none}
input[type=text],input[type=password]{background:var(--bg2);color:var(--fg);border:1px solid var(--line);border-radius:9px;padding:7px 9px;font-size:13px;max-width:190px;font-family:inherit}
.kv input[type=range]{max-width:140px}
table.map{width:100%;border-collapse:collapse;font-size:13px}
table.map th,table.map td{border-bottom:1px solid var(--line);padding:7px 6px;text-align:left}
table.map th{color:#9dc4ff;font-weight:600;font-size:12.5px}
table.map tr.cur td{background:#12253a}

.popup{position:fixed;z-index:60;max-width:320px;max-height:60vh;overflow:auto;background:#1d2632;border:1px solid #33405a;
  border-radius:12px;padding:11px 13px;box-shadow:0 12px 30px rgba(0,0,0,.5);font-size:13.5px}
.popup .pw{font-size:16px;font-weight:700;display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}
.popup .ph{color:var(--dim);font-size:12.5px;font-weight:400}
.popup .pp{color:#9dc4ff;font-size:12.5px;margin-top:3px}
.popup .pm{margin-top:5px;line-height:1.5}
.popup .pe{margin-top:5px;color:var(--dim);font-size:12.5px}
.popup .close{position:absolute;right:6px;top:4px;background:none;border:none;color:var(--dim);padding:2px 6px}

.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:#2a3546;color:#fff;
  padding:9px 16px;border-radius:999px;font-size:13.5px;z-index:80;box-shadow:0 8px 24px rgba(0,0,0,.5)}
.empty{color:var(--dim);text-align:center;padding:24px 10px;font-size:13.5px}

/* 题库 / OCR */
.dropzone{border:2px dashed var(--line);border-radius:12px;padding:14px;text-align:center;background:var(--bg2);margin-bottom:10px}
.dropzone.over{border-color:var(--acc);background:#4f8cff14}
.dropzone .row{justify-content:center;margin-top:8px}
.thumbs{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.thumbs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
progress{width:100%;height:8px;margin:8px 0}
#ocrText{width:100%;background:var(--bg2);color:var(--fg);border:1px solid var(--line);border-radius:11px;padding:10px;font-size:14px;line-height:1.6;font-family:inherit;resize:vertical}
.cand{border:1px solid var(--line);border-radius:12px;padding:10px;margin-bottom:9px;background:var(--bg2)}
.cand .top{display:flex;gap:8px;align-items:center;justify-content:space-between;margin-bottom:6px;flex-wrap:wrap}
.cand label.hint{display:block;margin-top:6px}
.cand input[type=text]{max-width:none;width:100%}
.cand .cand-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-top:6px}
.cand .cand-row select,.cand .cand-row input{max-width:none;width:100%}