:root{
  --bg:#0f1117; --bg2:#151822; --card:#1b1f2b; --card2:#222736;
  --line:#2b3143; --line2:#39405a;
  --txt:#e8ecf5; --dim:#98a2b8; --dim2:#6b7690;
  --accent:#4f8cff; --accent2:#6ea8ff;
  --good:#2fbf71; --good-bg:rgba(47,191,113,.13);
  --warn:#f0a92e; --warn-bg:rgba(240,169,46,.13);
  --bad:#ef4d5a;  --bad-bg:rgba(239,77,90,.13);
  --radius:16px;
  --fs:22px;
}
[data-theme="light"]{
  --bg:#f5f6fa; --bg2:#ffffff; --card:#ffffff; --card2:#f2f4f9;
  --line:#e3e7f0; --line2:#d3d9e6;
  --txt:#1b2030; --dim:#5c657a; --dim2:#8b93a5;
  --good-bg:rgba(47,191,113,.12); --warn-bg:rgba(240,169,46,.16); --bad-bg:rgba(239,77,90,.11);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--txt);
  font:400 15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;
  padding-bottom:env(safe-area-inset-bottom);
  overscroll-behavior-y:contain;
}
button,select,input{font:inherit;color:inherit}
h2,h3{margin:0}
[hidden]{display:none!important}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky; top:0; z-index:30;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top);
}
.brand{display:flex;align-items:center;gap:9px;padding:11px 16px 7px}
.logo{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),#8b5cf6);
  font-size:14px;font-weight:700;color:#fff;
}
.brand-txt{font-weight:600;font-size:15px;letter-spacing:.3px}
.brand-txt em{font-style:normal;color:var(--dim);font-weight:400;font-size:13px;margin-left:2px}
.tabs{display:flex;gap:2px;padding:0 10px 0;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  background:none;border:0;padding:9px 13px 11px;color:var(--dim);
  font-size:14px;cursor:pointer;border-bottom:2px solid transparent;
  white-space:nowrap;transition:color .15s;
}
.tab.active{color:var(--txt);border-bottom-color:var(--accent);font-weight:600}
.tab:hover{color:var(--txt)}

main{max-width:720px;margin:0 auto;padding:14px 14px 40px}
.view{animation:fade .18s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* ---------- 概览 ---------- */
.hero{
  background:linear-gradient(160deg,var(--card),var(--bg2));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 18px 16px;margin-bottom:12px;text-align:center;
}
.hero-num{font-size:44px;font-weight:700;line-height:1.05;letter-spacing:-1px;
  background:linear-gradient(135deg,var(--accent2),#a78bfa);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-num small{font-size:17px;font-weight:500;color:var(--dim2);-webkit-text-fill-color:var(--dim2);margin-left:4px;letter-spacing:0}
.hero-label{color:var(--dim);font-size:13px;margin-top:2px}
.hero-sub{color:var(--dim);font-size:13px;margin-top:9px}

.bar{height:7px;background:var(--card2);border-radius:99px;overflow:hidden}
.bar.big{height:9px;margin:14px 0 2px}
.bar i{display:block;height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--accent),#8b5cf6);transition:width .35s cubic-bezier(.4,0,.2,1)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:13px;
  padding:11px 4px;text-align:center;cursor:pointer;transition:.15s;
}
.stat:active{transform:scale(.97)}
.stat b{display:block;font-size:19px;font-weight:700;line-height:1.2}
.stat span{font-size:11.5px;color:var(--dim)}
.stat.vague b{color:var(--warn)} .stat.bad b{color:var(--bad)} .stat[data-scope=known] b{color:var(--good)}

.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;margin-bottom:12px;
}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.panel-head h3{font-size:14px;font-weight:600;letter-spacing:.2px}
.hint{color:var(--dim);font-size:12.5px;line-height:1.65}
.hint.center{text-align:center;margin-top:8px}

.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:10px}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-bottom:0}
.chips.scroll::-webkit-scrollbar{display:none}
.chip{
  background:var(--card2);border:1px solid transparent;border-radius:99px;
  padding:7px 13px;font-size:13px;color:var(--dim);cursor:pointer;
  white-space:nowrap;transition:.15s;
}
.chip.active{background:rgba(79,140,255,.16);border-color:rgba(79,140,255,.55);color:var(--accent2);font-weight:600}
.chip:active{transform:scale(.97)}

.row-between{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:10px}
.row-gap{display:flex;gap:8px;margin-top:10px}
.row-gap.wrap{flex-wrap:wrap}
.field{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);flex:1}
.field span{white-space:nowrap}
.field select{
  flex:1;min-width:0;background:var(--card2);border:1px solid var(--line);
  border-radius:10px;padding:8px 9px;font-size:13px;color:var(--txt);
}
.field input[type=range]{flex:1;accent-color:var(--accent)}

.btn{
  background:var(--card2);border:1px solid var(--line2);border-radius:11px;
  padding:10px 15px;font-size:14px;cursor:pointer;transition:.15s;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
}
.btn:hover{border-color:var(--dim2)}
.btn:active{transform:scale(.98)}
.btn.primary{background:linear-gradient(135deg,var(--accent),#7c5cfc);border-color:transparent;color:#fff;font-weight:600}
.btn.ghost{background:transparent}
.btn.big{width:100%;padding:13px;font-size:15px;margin-top:4px}
.btn.small{padding:7px 12px;font-size:13px}

/* ---------- 过词 ---------- */
.study-top{margin-bottom:10px}
.study-meta{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:12.5px;color:var(--dim)}
.study-meta #study-count{font-variant-numeric:tabular-nums;font-weight:600;color:var(--txt)}
.study-meta #study-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini{background:var(--card2);border:1px solid var(--line);border-radius:8px;padding:4px 10px;font-size:12px;color:var(--dim);cursor:pointer}

.card{
  background:linear-gradient(165deg,var(--card),var(--bg2));
  border:1px solid var(--line);border-radius:20px;
  padding:26px 18px;min-height:250px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;
  user-select:none;-webkit-user-select:none;
  transition:border-color .2s, box-shadow .2s;
  outline:none;
}
.card.revealed{cursor:default;border-color:var(--line2);align-items:stretch}
.card.revealed .word{font-size:26px}
.card-badges{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:8px;min-height:0}
.badge{font-size:11px;padding:2px 8px;border-radius:99px;background:var(--card2);color:var(--dim);border:1px solid var(--line)}
.badge.rare{background:var(--warn-bg);color:var(--warn);border-color:transparent}
.badge.deriv{background:rgba(139,92,246,.16);color:#b39dff;border-color:transparent}

.word{
  font-size:35px;font-weight:600;letter-spacing:-.5px;line-height:1.25;
  text-align:center;word-break:break-word;margin-top:8px;
  font-family:"SF Pro Display",-apple-system,"Segoe UI",system-ui,sans-serif;
}
.phon{color:var(--dim2);font-size:14px;margin-top:6px;text-align:center;font-family:ui-monospace,Menlo,monospace}
.reveal-hint{color:var(--dim2);font-size:12.5px;margin-top:auto;padding-top:22px;text-align:center}
.card.revealed .reveal-hint{display:none}

.detail{width:100%;margin-top:16px;animation:fade .16s ease}
.outline{
  font-size:13px;color:var(--dim);background:var(--card2);
  border-left:3px solid var(--line2);border-radius:0 8px 8px 0;
  padding:8px 10px;margin-bottom:12px;line-height:1.65;
}
.outline b{color:var(--txt);font-weight:600}

.sense{
  border-top:1px solid var(--line);padding:10px 0 9px;
}
.sense:first-child{border-top:0}
.sense-head{display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}
.pos{font-size:12px;color:var(--accent2);font-family:ui-monospace,Menlo,monospace;flex:none}
.sense-cn{font-size:calc(var(--fs) * .72);line-height:1.55;font-weight:500}
.sense.rare .sense-cn{color:var(--warn)}
.tag-rare{
  font-size:10.5px;padding:1px 7px;border-radius:99px;
  background:var(--warn-bg);color:var(--warn);font-weight:600;flex:none;
}
.ex{margin-top:6px;padding-left:9px;border-left:2px solid var(--line)}
.ex .en{font-size:13.5px;color:var(--txt);line-height:1.55;opacity:.92}
.ex .zh{font-size:12.5px;color:var(--dim);line-height:1.55;margin-top:1px}
.ex .src{font-size:11px;color:var(--dim2);margin-left:4px}
.extra-block{margin-top:12px;border-top:1px solid var(--line);padding-top:10px}
.extra-block h4{
  margin:0 0 6px;font-size:11.5px;color:var(--dim2);font-weight:600;
  text-transform:uppercase;letter-spacing:.6px;
}
.kv{display:flex;gap:8px;font-size:12.5px;padding:3px 0;color:var(--dim);line-height:1.5}
.kv b{color:var(--txt);font-weight:500;flex:none;font-family:ui-monospace,Menlo,monospace}
.forms{display:flex;flex-wrap:wrap;gap:6px}
.form{
  font-size:12px;padding:3px 9px;border-radius:8px;background:var(--card2);
  color:var(--dim);border:1px solid var(--line);
}
.form b{color:var(--txt);font-weight:500}
.mn{font-size:13px;color:var(--dim);line-height:1.6}
.saying{font-size:13px;color:var(--dim);font-style:italic;line-height:1.6}
.saying span{display:block;font-style:normal;color:var(--dim2);font-size:12px;margin-top:2px}

.markbar{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.mark{
  border:0;border-radius:13px;padding:11px 6px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:1px;
  transition:.12s;color:var(--txt);
}
.mark b{font-size:15px;font-weight:600}
.mark small{font-size:11px;opacity:.62;font-family:ui-monospace,Menlo,monospace}
.mark:active{transform:scale(.97)}
.mark.known{background:var(--good-bg);border:1px solid rgba(47,191,113,.45);color:var(--good)}
.mark.vague{background:var(--warn-bg);border:1px solid rgba(240,169,46,.45);color:var(--warn)}
.mark.unknown{background:var(--bad-bg);border:1px solid rgba(239,77,90,.45);color:var(--bad)}
#studytools{grid-template-columns:repeat(3,1fr);margin-top:8px}
#studytools .btn{width:100%}

.done{text-align:center;padding:28px 10px}
.done-emoji{font-size:42px}
.done h2{font-size:19px;margin:6px 0 14px}
.done-stats{display:flex;gap:16px;justify-content:center;margin-bottom:18px;flex-wrap:wrap}
.done-stats div{font-size:13px;color:var(--dim)}
.done-stats b{display:block;font-size:21px;color:var(--txt)}
.done-stats .k b{color:var(--good)} .done-stats .v b{color:var(--warn)} .done-stats .u b{color:var(--bad)}

/* ---------- 词表 ---------- */
.list-tools{display:flex;flex-direction:column;gap:10px;margin-bottom:10px}
#list-search{
  width:100%;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:11px 14px;font-size:14px;outline:none;
}
#list-search:focus{border-color:var(--accent)}
.list-info{font-size:12.5px;color:var(--dim);margin-bottom:8px;display:flex;justify-content:space-between}

.li{
  display:flex;align-items:center;gap:10px;padding:11px 12px;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  margin-bottom:7px;cursor:pointer;transition:.13s;
}
.li:active{transform:scale(.995)}
.li-main{flex:1;min-width:0}
.li-w{font-size:15.5px;font-weight:600;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.li-w em{font-style:normal;font-size:11px;color:#b39dff;font-weight:500}
.li-m{font-size:12.5px;color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:1px}
.dot{width:8px;height:8px;border-radius:99px;flex:none;background:var(--line2)}
.dot.known{background:var(--good)} .dot.vague{background:var(--warn)} .dot.unknown{background:var(--bad)}
.li-act{display:flex;flex-direction:row;flex-wrap:nowrap;gap:4px;flex:0 0 auto;align-items:center}
.li-act button{
  border:0;background:var(--card2);border-radius:8px;
  width:32px;min-width:32px;height:32px;flex:0 0 32px;
  font-size:12px;color:var(--dim);cursor:pointer;padding:0;
  line-height:32px;text-align:center;
}
.li-act button.on.known{background:var(--good-bg);color:var(--good)}
.li-act button.on.vague{background:var(--warn-bg);color:var(--warn)}
.li-act button.on.unknown{background:var(--bad-bg);color:var(--bad)}

/* ---------- 导出 ---------- */
.switch{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--dim);padding:7px 0;cursor:pointer}
.switch input{appearance:none;width:38px;height:22px;border-radius:99px;background:var(--card2);
  border:1px solid var(--line2);position:relative;cursor:pointer;flex:none;transition:.18s}
.switch input::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;
  border-radius:99px;background:var(--dim);transition:.18s}
.switch input:checked{background:rgba(79,140,255,.3);border-color:var(--accent)}
.switch input:checked::after{left:18px;background:var(--accent2)}
.preview{
  background:var(--bg2);border:1px solid var(--line);border-radius:11px;
  padding:12px;font-size:12.5px;line-height:1.7;color:var(--dim);
  max-height:320px;overflow:auto;white-space:pre-wrap;word-break:break-word;
  font-family:ui-monospace,Menlo,Consolas,monospace;margin:0;
}
.keys{font-size:13px;color:var(--dim);line-height:2.1}
kbd{
  background:var(--card2);border:1px solid var(--line2);border-bottom-width:2px;
  border-radius:5px;padding:1px 6px;font-size:11.5px;font-family:ui-monospace,Menlo,monospace;
  color:var(--txt);margin-right:2px;
}

/* ---------- toast / sheet ---------- */
.toast{
  position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(8px);
  background:#000c;backdrop-filter:blur(10px);color:#fff;font-size:13px;
  padding:9px 16px;border-radius:99px;z-index:100;opacity:0;transition:.22s;pointer-events:none;
  max-width:86vw;text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%)}
.toast button{background:none;border:0;color:var(--accent2);font-weight:600;margin-left:10px;cursor:pointer;font-size:13px}

/* ---------- 响应式 ---------- */
@media (max-width:380px){
  .word{font-size:30px}
  .stat b{font-size:17px}
  .hero-num{font-size:38px}
  main{padding:12px 11px 40px}
}
@media (min-width:760px){
  .card{min-height:300px;padding:32px 28px}
  .word{font-size:40px}
}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:60;display:none}
.modal.show{display:block}
.modal-mask{position:absolute;inset:0;background:#000a;backdrop-filter:blur(3px);animation:fade .16s}
.modal-box{
  position:absolute;left:0;right:0;top:0;max-height:92vh;display:flex;flex-direction:column;
  background:var(--bg2);border-radius:0 0 20px 20px;border-bottom:1px solid var(--line2);
  padding-top:env(safe-area-inset-top);
  animation:down .22s cubic-bezier(.3,.8,.3,1);
}
@keyframes down{from{transform:translateY(-20px);opacity:.6}to{transform:none;opacity:1}}
@media (min-width:760px){
  .modal-box{left:50%;right:auto;bottom:auto;top:8vh;width:640px;transform:translateX(-50%);
    max-height:80vh;border-radius:18px;border:1px solid var(--line2)}
  @keyframes up{from{opacity:0}to{opacity:1}}
}
.modal-head{padding:16px 18px 10px;border-bottom:1px solid var(--line);position:relative}
.modal-word{font-size:26px;font-weight:600;letter-spacing:-.4px;padding-right:40px}
.modal-phon{font-size:13.5px;color:var(--dim2);font-family:ui-monospace,Menlo,monospace;margin-top:2px}
.modal-close{position:absolute;top:12px;right:12px;background:var(--card2);border:1px solid var(--line);
  border-radius:99px;width:30px;height:30px;color:var(--dim);cursor:pointer;font-size:13px;line-height:1}
.modal-body{padding:12px 18px 18px;overflow:auto;-webkit-overflow-scrolling:touch}
.modal-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:10px 14px calc(12px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);background:var(--bg2)}
.modal-foot .mark{padding:9px 4px}
.modal-foot .mark b{font-size:14px}

/* 生义分隔 */
.sense-sep{display:flex;align-items:center;gap:10px;margin:14px 0 4px;color:var(--warn);font-size:11.5px;font-weight:600}
.sense-sep::before,.sense-sep::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,rgba(240,169,46,.4),transparent)}
.ex-toggle{margin:2px 0 8px}
.hide-ex .ex{display:none}
.hide-ex .ex-toggle{display:inline-flex}
.rel-link{cursor:pointer;text-decoration:underline dotted}
.field input[type=text],.field input[type=password],.field input[type=search]{
  flex:1;background:var(--card2);border:1px solid var(--line);border-radius:10px;
  padding:8px 10px;font-size:13px;color:var(--txt);min-width:0;
}

/* ---------- 过词：标记栏固定底部 ---------- */
#markbar{
  position:sticky; bottom:0; z-index:20;
  margin:12px -14px 0; padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
#studytools{margin-top:8px}
@media (min-width:760px){
  #markbar{margin-left:0;margin-right:0;border-radius:14px 14px 0 0;border:1px solid var(--line)}
}
/* 卡片内部可滚动区域限制高度，避免按钮被顶走 */
.card{padding-bottom:20px}
#view-study{padding-bottom:0}

/* ---------- 品牌与词库 ---------- */
.brand{position:relative}
.logo{border-radius:8px;display:block;flex:none}
.deck-pill{
  margin-left:auto;display:inline-flex;align-items:center;gap:5px;
  background:var(--card2);border:1px solid var(--line);border-radius:99px;
  padding:4px 10px;font-size:12px;color:var(--dim);cursor:pointer;
  max-width:46vw;
}
.deck-pill span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.deck-pill:active{transform:scale(.97)}
.deck-line{
  font-size:12.5px;color:var(--dim);line-height:1.6;
  background:var(--card2);border-radius:10px;padding:8px 11px;margin-bottom:10px;
}
.deck-line b{color:var(--txt);font-weight:600}
.deck-line .mini{margin-left:6px}

/* 词库选择弹层 */
.deck-list{display:flex;flex-direction:column;gap:8px;padding:4px 0 8px}
.deck-item{
  display:flex;align-items:center;gap:11px;padding:12px 13px;
  background:var(--card);border:1px solid var(--line);border-radius:13px;
  cursor:pointer;transition:.14s;
}
.deck-item:active{transform:scale(.99)}
.deck-item.on{border-color:var(--accent);background:rgba(79,140,255,.1)}
.deck-item.off{cursor:not-allowed;background:var(--bg2);border-style:dashed;border-color:var(--line)}
.deck-item.off .deck-nm{color:var(--dim)}
.deck-item.off .deck-sb,.deck-item.off .deck-ct{color:var(--dim2)}
.deck-ic{
  width:34px;height:34px;border-radius:10px;flex:none;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;font-size:13px;font-weight:700;
}
.deck-item.off .deck-ic{background:var(--card2);color:var(--dim2)}
.deck-tx{flex:1;min-width:0}
.deck-nm{font-size:14.5px;font-weight:600;display:flex;align-items:center;gap:6px}
.deck-sb{font-size:12px;color:var(--dim);margin-top:1px}
.deck-ct{font-size:11.5px;color:var(--dim2);flex:none;text-align:right}
.tag-soon{font-size:10px;padding:1px 6px;border-radius:99px;background:var(--card2);color:var(--dim2);border:1px solid var(--line)}

/* 义项分类标签 */
.tag-core{
  font-size:10.5px;padding:1px 7px;border-radius:99px;
  background:var(--good-bg);color:var(--good);font-weight:600;flex:none;
}
.sense.neutral .sense-cn{color:var(--dim)}


/* 居中弹层（词库选择用） */
.modal.center .modal-box{
  top:50%;transform:translateY(-50%);
  left:12px;right:12px;max-height:80vh;
  border-radius:18px;border:1px solid var(--line2);
  animation:pop .2s cubic-bezier(.3,.8,.3,1);
}
@keyframes pop{from{opacity:0;transform:translateY(-50%) scale(.97)}to{opacity:1;transform:translateY(-50%) scale(1)}}
.modal.center .modal-head{border-radius:18px 18px 0 0}
@media (min-width:760px){
  .modal.center .modal-box{left:50%;right:auto;width:440px;margin-left:-220px;transform:translateY(-50%)}
}

/* ---------- 考试标签 ---------- */
.exam-tags{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;margin:6px 0 2px;min-height:0}
.modal-exam{justify-content:flex-start;margin-top:6px}
.exam-tag{
  font-size:10.5px;line-height:1.5;padding:1px 7px;border-radius:4px;
  background:transparent;color:var(--dim2);
  border:1px solid var(--line2);white-space:nowrap;
}
.modal-head .exam-tags{margin-top:7px}