:root{
  --bg:#f6f5f2; --card:#fff; --ink:#1c1b19; --muted:#7d7a74;
  --line:#e4e1db; --line-soft:#f1efea;
  --accent:#2f6b57; --accent-soft:#e9f2ed; --accent-ink:#245448;
  --mark:#fff2cd;
  --lv-red:#d8593a; --lv-yellow:#e0a52e; --lv-green:#3f8f6b;
  --ok:#3f8f6b; --ok-bg:#eef7f2;
  --no:#c9613f; --no-bg:#fdf1ec;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}

.top{
  position:sticky; top:0; z-index:30;
  display:flex; align-items:center; gap:18px; flex-wrap:wrap;
  padding:14px 28px; background:rgba(246,245,242,.92);
  -webkit-backdrop-filter:saturate(180%) blur(12px); backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.brand{font-size:15px; font-weight:600; letter-spacing:.02em; color:var(--accent-ink)}
.brand small{display:block; font-weight:400; color:var(--muted); font-size:11.5px; letter-spacing:.04em; margin-top:3px}
.tabs{display:flex; gap:6px; margin-left:auto}
.tabs button{
  font:inherit; font-size:14px; padding:8px 18px; border-radius:999px;
  border:1px solid var(--line); background:#fff; color:var(--muted); cursor:pointer;
  transition:all .15s;
}
.tabs button:hover{border-color:#cfcbc3; color:var(--ink)}
.tabs button.on{background:var(--accent); border-color:var(--accent); color:#fff}

main{max-width:860px; margin:0 auto; padding:32px 24px 120px}

.pickbar{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:20px}
.pickbar button{
  font:inherit; font-size:13px; padding:7px 14px; border-radius:999px;
  border:1px solid var(--line); background:#fff; color:var(--muted); cursor:pointer;
}
.pickbar button.on{background:var(--accent); border-color:var(--accent); color:#fff}

.lessonhead{margin:6px 0 20px}
.lessonhead h1{
  font-family:Georgia,"Times New Roman",serif;
  font-size:30px; font-weight:600; margin:0 0 8px; letter-spacing:-.01em;
}
.lessonhead .meta{font-size:13.5px; color:var(--muted); letter-spacing:.03em}
.lessonhead .meta b{color:var(--accent-ink); font-weight:600}

.passage{
  background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:34px 36px 24px;
}
.passage .en{
  font-family:Georgia,"Times New Roman",Cambria,serif;
  font-size:21px; line-height:2.05; margin:0 0 24px; color:#22211e;
}
.passage .en:last-child{margin-bottom:12px}

.w{
  cursor:pointer; border-radius:3px; padding:1px 2px; margin:0 -2px;
  border-bottom:2px dashed var(--accent);
  transition:background .13s, color .13s, border-color .13s;
}
.w:hover{background:var(--accent-soft)}
.w.done{border-bottom-color:#d3cfc7; color:#5f5c56}

details.panel{
  margin-top:20px; background:var(--card); border:1px solid var(--line);
  border-radius:14px; overflow:hidden;
}
details.panel > summary{
  list-style:none; cursor:pointer; padding:17px 22px;
  display:flex; align-items:center; gap:12px;
  font-size:15px; font-weight:600; color:var(--ink); user-select:none;
}
details.panel > summary::-webkit-details-marker{display:none}
details.panel > summary::before{
  content:""; width:8px; height:8px; flex:0 0 auto;
  border-right:2px solid var(--muted); border-bottom:2px solid var(--muted);
  transform:rotate(-45deg); transition:transform .2s; margin-left:2px;
}
details.panel[open] > summary::before{transform:rotate(45deg)}
details.panel[open] > summary{border-bottom:1px solid var(--line)}
.tag{
  margin-left:auto; font-weight:500; font-size:12.5px; color:var(--muted);
  letter-spacing:.03em; background:#f4f2ee; padding:4px 11px; border-radius:999px;
}

.zh p{
  font-size:18px; line-height:2.15; margin:0; padding:17px 22px;
  color:#413f3b; border-bottom:1px solid var(--line-soft);
}
.zh p:last-child{border-bottom:none}
.zh-w{
  cursor:pointer; border-radius:3px; padding:0 2px; margin:0 -1px;
  border-bottom:1.5px dashed #93b3a6; color:#1f1e1c;
  transition:background .13s, border-color .13s;
}
.zh-w:hover{background:#e4efe9; border-bottom-color:var(--accent)}
.zh-en{
  font-family:Georgia,"Times New Roman",serif;
  font-style:normal; font-size:12.5px; color:#aaa69e;
  margin-left:5px; letter-spacing:.01em; white-space:nowrap; transition:color .13s;
}
.zh-w:hover .zh-en{color:var(--accent)}

.sechead{margin:34px 0 14px; display:flex; align-items:center; gap:14px; flex-wrap:wrap}
.sechead h2{font-size:15px; font-weight:600; margin:0; letter-spacing:.02em}
.dirsw{margin-left:auto; display:flex; border:1px solid var(--line); border-radius:9px; overflow:hidden; background:#fff}
.dirtab{
  font:inherit; font-size:13px; padding:7px 14px; border:none; background:none;
  color:var(--muted); cursor:pointer; transition:all .13s;
}
.dirtab + .dirtab{border-left:1px solid var(--line)}
.dirtab.on{background:var(--accent); color:#fff}
.score{font-size:13px; color:var(--muted)}
.score b{color:var(--accent-ink); font-variant-numeric:tabular-nums}

.quiz{background:var(--card); border:1px solid var(--line); border-radius:14px; overflow:hidden}
.q{padding:18px 22px; border-bottom:1px solid var(--line-soft)}
.q:last-child{border-bottom:none}
.qstem{display:flex; align-items:baseline; gap:12px; margin-bottom:13px; flex-wrap:wrap}
.qno{font-size:12px; color:#b8b4ad; font-variant-numeric:tabular-nums; flex:0 0 auto}
.qtext{font-family:Georgia,serif; font-size:19px; font-weight:600; color:var(--ink)}
.qphon{font-family:Georgia,serif; font-size:13.5px; color:#9a968f}
.qopts{display:grid; grid-template-columns:1fr 1fr; gap:10px}
.opt{
  font:inherit; font-size:15px; text-align:left; padding:11px 14px;
  border:1px solid var(--line); background:#fff; border-radius:9px;
  color:#3a3835; cursor:pointer; display:flex; gap:9px; align-items:baseline;
  transition:all .13s;
}
.opt .ol{color:#b8b4ad; font-size:12px; flex:0 0 auto}
.opt:hover{border-color:#cfcbc3; background:#faf9f6}
.q.locked .opt{cursor:default}
.q.locked .opt:hover{border-color:var(--line); background:#fff}
.opt.right{border-color:var(--ok); background:var(--ok-bg); color:var(--accent-ink)}
.opt.right .ol{color:var(--ok)}
.opt.wrong{border-color:var(--no); background:var(--no-bg); color:#8f3c1f}
.opt.wrong .ol{color:var(--no)}

table{width:100%; border-collapse:collapse}
thead th{
  text-align:left; font-size:11.5px; font-weight:600; letter-spacing:.07em;
  text-transform:uppercase; color:#95918a; padding:12px 18px 10px;
  border-bottom:1px solid var(--line); white-space:nowrap;
}
tbody td{padding:12px 18px; border-bottom:1px solid var(--line-soft); vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tr.row{transition:background .12s}
tr.row:hover{background:#faf9f6}
.idx{color:#b8b4ad; font-size:12px; width:40px; font-variant-numeric:tabular-nums}
.wd{font-family:Georgia,serif; font-size:17px; font-weight:600; color:var(--accent-ink); white-space:nowrap}
.ph{font-family:Georgia,serif; font-size:13.5px; color:#6a6761; white-space:nowrap}
.ph .lbl{font-family:inherit; font-size:10.5px; color:#b0aca5; margin-right:5px}
.cn{font-size:15px; color:#3a3835}
.ch{font-size:12.5px; color:#a09c95; white-space:nowrap}

.lv{width:118px; white-space:nowrap}
.lvbtn{
  width:22px; height:22px; padding:0; margin:0 7px 0 0; border-radius:50%;
  border:2px solid #d8d4cc; background:#fff; cursor:pointer;
  transition:all .13s; vertical-align:middle;
}
.lvbtn:last-child{margin-right:0}
.lvbtn:hover{transform:scale(1.15)}
.lvbtn[data-lv="red"]:hover{border-color:var(--lv-red)}
.lvbtn[data-lv="yellow"]:hover{border-color:var(--lv-yellow)}
.lvbtn[data-lv="green"]:hover{border-color:var(--lv-green)}
.lvbtn.on[data-lv="red"]{background:var(--lv-red); border-color:var(--lv-red)}
.lvbtn.on[data-lv="yellow"]{background:var(--lv-yellow); border-color:var(--lv-yellow)}
.lvbtn.on[data-lv="green"]{background:var(--lv-green); border-color:var(--lv-green)}
tr.row[data-lv="red"] td:first-child{box-shadow:inset 4px 0 0 var(--lv-red)}
tr.row[data-lv="yellow"] td:first-child{box-shadow:inset 4px 0 0 var(--lv-yellow)}
tr.row[data-lv="green"] td:first-child{box-shadow:inset 4px 0 0 var(--lv-green)}

@keyframes flash{0%{background:#ffd95e; box-shadow:0 0 0 3px rgba(255,190,40,.55)}100%{background:transparent; box-shadow:0 0 0 3px transparent}}
.flash{animation:flash 2s ease-out; border-radius:4px}
tr.flash td{animation:flash 2s ease-out}

.hintbar{
  margin-top:20px; font-size:13px; color:var(--muted);
  display:flex; gap:12px; flex-wrap:wrap; align-items:center; line-height:1.8;
}
.hintbar > span{flex:1 1 320px}
.hintbar b{font-weight:500}
.btn{
  font:inherit; font-size:13.5px; padding:8px 16px; border-radius:9px;
  border:1px solid var(--line); background:#fff; color:var(--ink); cursor:pointer;
  transition:all .13s;
}
.btn:hover{border-color:#cfcbc3}
.btn.primary{background:var(--accent); border-color:var(--accent); color:#fff}
.btn.primary:hover{background:var(--accent-ink); border-color:var(--accent-ink)}
.btn.ghost{background:none; border:none; color:var(--muted); text-decoration:underline; text-underline-offset:3px; padding:6px 4px}
.btn.ghost:hover{color:var(--accent-ink)}

.bankbar{display:flex; gap:12px; flex-wrap:wrap; align-items:center; margin-bottom:18px}
.banksearch{
  font:inherit; font-size:14.5px; padding:10px 14px; border-radius:10px;
  border:1px solid var(--line); background:#fff; color:var(--ink);
  flex:1 1 240px; min-width:180px;
}
.banksearch:focus{outline:none; border-color:var(--accent)}
select.banksel{
  font:inherit; font-size:13.5px; padding:10px 12px; border-radius:10px;
  border:1px solid var(--line); background:#fff; color:var(--ink); cursor:pointer;
}
.chips{display:flex; gap:6px; flex-wrap:wrap}
.chip{
  font:inherit; font-size:13px; padding:7px 13px; border-radius:999px;
  border:1px solid var(--line); background:#fff; color:var(--muted); cursor:pointer;
}
.chip.on{background:var(--accent-ink); border-color:var(--accent-ink); color:#fff}
.bankmeta{font-size:13px; color:var(--muted); margin-bottom:12px; display:flex; align-items:center; gap:12px; flex-wrap:wrap}

.banktable{background:var(--card); border:1px solid var(--line); border-radius:14px; overflow:hidden}
.banktable tr.row{cursor:pointer; user-select:none}
.banktable tr.row.picked{background:var(--accent-soft)}
.banktable tr.row.picked td{background:var(--accent-soft)}
.banktable tr.row.picked .wd{color:var(--accent-ink); font-weight:600}
.ckwrap{width:30px}
.ck{
  width:18px; height:18px; accent-color:var(--accent); cursor:pointer; margin:0;
}
.pager{display:flex; gap:8px; align-items:center; justify-content:center; margin-top:20px; flex-wrap:wrap}
.pageinfo{font-size:13px; color:var(--muted); font-variant-numeric:tabular-nums}

.selbar{
  position:fixed; left:50%; transform:translateX(-50%); bottom:26px; z-index:40;
  background:#1c1b19; color:#fff; border-radius:999px; padding:11px 14px 11px 22px;
  display:flex; align-items:center; gap:16px; font-size:14px;
  box-shadow:0 6px 22px rgba(0,0,0,.18);
}
.selbar button{
  font:inherit; font-size:13.5px; padding:7px 15px; border-radius:999px;
  border:none; background:var(--accent); color:#fff; cursor:pointer;
}
.selbar button.clear{background:transparent; color:#c9c5bd; text-decoration:underline; text-underline-offset:3px; padding:6px 0}

.calcard{background:var(--card); border:1px solid var(--line); border-radius:14px; padding:24px 26px}
.calhead{display:flex; align-items:center; gap:14px; margin-bottom:18px}
.calhead h2{font-size:17px; font-weight:600; margin:0}
.calhead .btn{margin-left:auto}
.calgrid{display:grid; grid-template-columns:repeat(7,1fr); gap:8px}
.caldow{font-size:11.5px; color:var(--muted); text-align:center; padding-bottom:6px; letter-spacing:.05em}
.calcell{
  aspect-ratio:1.35; border-radius:10px; border:1px solid var(--line-soft);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  font-size:13.5px; cursor:pointer; position:relative;
  transition:all .13s;
}
.calcell.empty{cursor:default; border:none; background:none}
.calcell:hover:not(.empty){border-color:#cfcbc3}

/* 未来：最淡 */
.calcell.future{background:#fcfbf9; color:#cbc7c0; border-color:#f2f0eb}
/* 过去：中性 */
.calcell.past{background:#f7f6f3; color:#9c988f}
/* 过去有练习：绿 */
.calcell.past.has{background:#e6f1eb; border-color:#cfe3d9; color:#2f6b57}
/* 连续打卡段：更饱和 */
.calcell.past.has.streak{background:#cfe6da; border-color:#a8cbbc; color:#235043}
/* 今天：实心强调 */
.calcell.today{background:#2f6b57; border-color:#2f6b57; color:#fff; font-weight:600}
.calcell.today .dots i{background:#fff; opacity:.85}
.calcell.sel{box-shadow:0 0 0 2.5px #8fb8a6}
.calcell.today.sel{box-shadow:0 0 0 3px #a8cbbc}
.calcell .num{line-height:1}
.calcell .dots{position:absolute; bottom:7px; display:flex; gap:3px}
.calcell .dots i{width:5px; height:5px; border-radius:50%; background:currentColor; opacity:.7}

.milestone{
  margin-top:18px; padding:14px 18px; border-radius:12px;
  background:#eef6f2; border:1px solid #cfe3d9;
  display:flex; align-items:center; gap:14px;
}
.milestone .mnum{font-size:30px; font-weight:600; color:#245448; font-variant-numeric:tabular-nums; line-height:1}
.milestone .mtext{font-size:13px; color:#4f6f63; line-height:1.6}
.milestone .mtext b{font-weight:500; color:#245448}

.genmask{
  position:fixed; inset:0; z-index:80; display:none;
  align-items:center; justify-content:center;
  background:rgba(28,27,25,.35);
  -webkit-backdrop-filter:blur(3px); backdrop-filter:blur(3px);
}
.genbox{
  background:#fff; border-radius:16px; padding:34px 40px; text-align:center;
  box-shadow:0 12px 40px rgba(0,0,0,.18); min-width:280px;
}
.genbox .gt{font-size:15px; font-weight:600; color:#1c1b19; margin-top:18px}
.genbox .gs{font-size:12.5px; color:#7d7a74; margin-top:7px}
.spinner{
  width:38px; height:38px; margin:0 auto; border-radius:50%;
  border:3px solid #e4e1db; border-top-color:#2f6b57;
  animation:spin .9s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.banktable{user-select:none}

.dayhead{font-size:15px; font-weight:600; margin-bottom:14px; display:flex; align-items:center; gap:10px}
.pill{font-size:11.5px; font-weight:400; background:var(--accent); color:#fff; border-radius:999px; padding:2px 9px}
.sesslist{display:flex; flex-direction:column; gap:8px; margin-bottom:16px}
.sesscard{
  display:flex; align-items:center; gap:12px; padding:13px 16px;
  border:1px solid var(--line); border-radius:11px; background:#fff; cursor:pointer;
  transition:all .13s;
}
.sesscard:hover{border-color:#cfcbc3; background:#faf9f6}
.sesscard.active{border-color:#cfe3d9; background:var(--accent-soft)}
.sc-l{display:flex; align-items:center; gap:12px; flex-wrap:wrap; flex:1 1 auto; min-width:0}
.sc-r{margin-left:auto; display:flex; align-items:center; gap:10px; font-size:14px; color:var(--accent-ink); white-space:nowrap}
.sc-r .go{font-size:13px; color:var(--accent)}
.del{
  width:28px; height:28px; padding:0; border-radius:50%; flex:0 0 auto;
  border:1px solid var(--line); background:#fff; color:#a09c95;
  font-size:17px; line-height:1; cursor:pointer; transition:all .13s;
}
.del:hover{border-color:#d8593a; color:#d8593a; background:#fdf1ec}
.seq{font-size:11.5px; color:#fff; background:var(--muted); border-radius:6px; padding:2px 7px; font-variant-numeric:tabular-nums}
.sesscard.active .seq{background:var(--accent)}
.ttl{font-family:Georgia,serif; font-size:15.5px; font-weight:600; color:var(--ink)}
.st{font-size:12.5px; color:var(--muted)}
.nodata{font-size:14px; color:var(--muted); padding:4px 0 16px}
.dayact{display:flex; align-items:center; gap:14px; flex-wrap:wrap; border-top:1px solid var(--line-soft); padding-top:16px; margin-top:4px}
.dayact .msg{font-size:12.5px; color:var(--muted)}
.btn[disabled]{opacity:.45; cursor:not-allowed}
.calcard.nopad{padding:0; overflow:hidden}

.resultbar{display:flex; align-items:center; gap:16px; flex-wrap:wrap; background:var(--accent-soft);
  border:1px solid #cfe3d9; border-radius:14px; padding:18px 22px; margin-bottom:20px}
.resultbar .big{font-size:34px; font-weight:600; color:var(--accent-ink); font-variant-numeric:tabular-nums}
.resultbar .sub{font-size:13px; color:#4f6f63}
.resultbar .btn{margin-left:auto}

.progbar{display:flex; align-items:center; gap:14px; flex-wrap:wrap; font-size:13px; color:var(--muted); margin-bottom:16px}
.progbar b{color:var(--accent-ink)}
.progbar .hint{margin-left:auto; font-size:12.5px}

.voicebar{display:inline-flex; align-items:center; gap:8px; font-size:13px; color:var(--muted); flex-wrap:wrap}
.voicebar .hint{font-size:12px; margin-left:4px}

.spk{
  width:24px; height:24px; padding:0; margin-right:7px; border-radius:6px;
  border:1px solid var(--line); background:#fff; color:var(--muted);
  cursor:pointer; vertical-align:middle; display:inline-flex;
  align-items:center; justify-content:center; transition:all .13s;
}
.spk:hover{border-color:var(--accent); color:var(--accent); background:var(--accent-soft)}
.spk:active{transform:scale(.92)}

.qmark{font-size:11.5px; margin-left:8px; padding:1px 7px; border-radius:5px}
.qmark.ok{color:#2f6b57; background:#e9f2ed}
.qmark.no{color:#a8402a; background:#fbe9e3}

.srv{font-size:12px; padding:3px 10px; border-radius:999px; margin-right:6px; white-space:nowrap}
.srv.ok{background:#e9f2ed; color:#2f6b57}
.srv.off{background:#f4f2ee; color:#a09c95}

.statrow{display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:20px}
.stat{background:#faf9f6; border:1px solid var(--line-soft); border-radius:12px; padding:14px 16px}
.stat .k{font-size:12px; color:var(--muted); letter-spacing:.03em}
.stat .v{font-size:24px; font-weight:600; color:var(--accent-ink); margin-top:4px; font-variant-numeric:tabular-nums}
.stat .v small{font-size:13px; color:var(--muted); font-weight:400}

.histitem{
  padding:14px 20px; border-bottom:1px solid var(--line-soft);
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
}
.histitem:last-child{border-bottom:none}
.histitem .d{font-size:13.5px; color:var(--ink); font-weight:600; font-variant-numeric:tabular-nums; min-width:96px}
.histitem .t{font-size:12.5px; color:var(--muted)}
.histitem .r{margin-left:auto; font-size:13px; color:var(--muted)}
.histitem .r b{color:var(--accent-ink)}

.emptybox{
  background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:40px 24px; text-align:center; color:var(--muted); font-size:14px;
}

.qwrap{background:var(--card); border:1px solid var(--line); border-radius:14px; overflow:hidden}
.qdone{padding:30px 24px; text-align:center}
.qdone .big{font-size:44px; font-weight:600; color:var(--accent-ink); font-variant-numeric:tabular-nums}
.qdone .sub{font-size:14px; color:var(--muted); margin-top:8px}

/* ---------- 页面内提示 / 确认框 ---------- */
.save-status{max-width:1100px; margin:10px auto 0; padding:0 24px; text-align:right;
  font-size:12px; color:var(--muted); min-height:18px}
.status-retry{font:inherit; border:0; padding:2px 6px; background:none; color:var(--accent);
  cursor:pointer; text-decoration:underline; text-underline-offset:3px}
.generation-card{position:sticky; top:76px; z-index:35; max-width:812px; width:calc(100% - 48px);
  margin:14px auto 0; padding:16px 20px; background:#fff; border:1px solid #cfe3d9;
  border-radius:12px; box-shadow:0 6px 20px rgba(24,45,35,.06)}
.generation-card[hidden]{display:none}
.generation-card.failed{border-color:#e8cabb; background:#fffbf8}
.gen-top{display:flex; gap:10px; align-items:center; font-size:14px; color:var(--accent-ink)}
.gen-top strong{font-weight:600}
.gen-icon{width:18px; height:18px; flex:none; color:var(--accent); text-align:center; line-height:18px}
.gen-icon.spinning{border:2px solid #dce9e2; border-top-color:var(--accent); border-radius:50%; animation:spin .8s linear infinite}
.failed .gen-icon{color:var(--no)}
.gen-elapsed{margin-left:auto; font-size:12px; color:var(--muted); font-variant-numeric:tabular-nums; white-space:nowrap}
.gen-close{border:0; background:none; font-size:20px; padding:0 4px; color:var(--muted); cursor:pointer}
.gen-message{font-size:13px; color:#625f58; line-height:1.65; margin:9px 0 8px 28px; overflow-wrap:anywhere}
.gen-steps{display:flex; gap:10px; align-items:center; margin-left:28px; font-size:12px; color:#a39f98}
.gen-step.current{color:var(--accent-ink); font-weight:600}
.gen-step.complete{color:var(--accent)}
.gen-separator{color:#bfbab2}
.gen-background{font-size:12px; color:var(--muted); margin:8px 0 0 28px}
.gen-actions{display:flex; gap:12px; align-items:center; flex-wrap:wrap; margin-left:28px; font-size:12px; color:var(--muted)}
.gen-actions .btn{margin-left:auto}
.generation-card .ghost{margin-left:22px; margin-top:3px; font-size:12px}
button:disabled{cursor:default; opacity:.65}
.btn:active,.selbar button:active{transform:scale(.97)}
.btn{transition:background .13s, border-color .13s, transform .13s ease-out}
@media (prefers-reduced-motion:reduce){.gen-icon.spinning{animation:none; border-color:var(--accent)}
  .btn,.selbar button{transition:none}.btn:active,.selbar button:active{transform:none}}
.toast{
  position:fixed; left:50%; bottom:96px; transform:translate(-50%, 12px);
  background:#1c1b19; color:#fff; font-size:14px; line-height:1.5;
  padding:12px 20px; border-radius:12px; max-width:min(560px, calc(100% - 40px));
  box-shadow:0 8px 26px rgba(0,0,0,.22); z-index:80;
  opacity:0; pointer-events:none; transition:opacity .18s, transform .18s;
  text-align:center;
}
.toast.show{opacity:1; transform:translate(-50%, 0)}

.cfmask{
  position:fixed; inset:0; z-index:90; background:rgba(24,23,21,.34);
  display:flex; align-items:center; justify-content:center; padding:24px;
}
.cfbox{
  background:#fff; border-radius:16px; padding:26px 28px 20px;
  box-shadow:0 18px 50px rgba(0,0,0,.24); max-width:400px; width:100%;
}
.cfmsg{font-size:15.5px; line-height:1.65; color:var(--ink); margin-bottom:22px}
.cfbtns{display:flex; justify-content:flex-end; gap:10px}

@media (max-width:700px){
  .generation-card{top:70px; width:calc(100% - 28px); padding:13px 14px}
  .gen-top{flex-wrap:wrap; gap:7px}.gen-top strong{max-width:calc(100% - 35px)}
  .gen-elapsed{margin-left:25px}.gen-close{margin-left:auto}
  main{padding:20px 14px 100px}
  .passage{padding:24px 20px 16px}
  .passage .en{font-size:18.5px; line-height:1.95}
  .zh p{font-size:15px}
  thead th, tbody td{padding-left:12px; padding-right:12px}
  .ch, .idx{display:none}
  .lv{width:100px}
  .lvbtn{width:20px; height:20px; margin-right:5px}
  .qopts{grid-template-columns:1fr}
  .statrow{grid-template-columns:repeat(2,1fr)}
  .top{padding:12px 14px; gap:10px}
  .tabs button{padding:7px 13px; font-size:13px}
  .selbar{width:calc(100% - 28px); justify-content:space-between}
}