/* =============================================================
   ay_english · 通用样式
   由 孩子端.html + 家长端.html 的样式合并去重生成（家长端优先）
   重新生成：node tools/build-theme.js
   ============================================================= */
*,*::before,*::after{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:#e8ebf3;color:var(--tx,#161a26);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
button{font-family:inherit;border:none;outline:none;cursor:pointer}
input,textarea,select{font-family:inherit}
#app{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg,#f2f4f9);position:relative;
  box-shadow:0 0 40px rgba(20,30,80,.07);overflow-x:hidden}
#topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--ln,#e9ecf5);display:flex;align-items:center;gap:10px;
  padding:12px 16px;min-height:56px}
#tabbar{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;z-index:60;
  background:rgba(255,255,255,.95);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--ln,#e9ecf5);display:flex;padding:7px 4px calc(7px + env(safe-area-inset-bottom))}
body.has-tabbar #app{padding-bottom:76px}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#f2f4f9;--card:#fff;--pri:#8b5cf6;--pri2:#5b6cff;
  --tx:#161a26;--mu:#8b90a3;--ln:#e9ecf5;
  --ok:#10b981;--err:#ef4444;--wr:#f59e0b;--r:16px;
}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:#e8ebf3;color:var(--tx);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
#app{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative;
  padding-bottom:76px;box-shadow:0 0 40px rgba(20,30,80,.07);overflow-x:hidden}
button{font-family:inherit;border:none;outline:none;cursor:pointer}
input,textarea{font-family:inherit}
#topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--ln);display:flex;align-items:center;gap:10px;
  padding:12px 16px;min-height:56px}
.tb-back{width:30px;height:30px;border-radius:10px;background:#f1f3fa;display:grid;
  place-items:center;font-size:17px;color:var(--tx);flex-shrink:0;cursor:pointer}
.tb-title{font-size:17px;font-weight:700;flex:1;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tb-badge{font-size:11px;color:var(--pri);background:#f3efff;padding:3px 9px;border-radius:20px;
  font-weight:600;flex-shrink:0;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#tabbar{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;z-index:60;
  background:rgba(255,255,255,.95);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--ln);display:flex;padding:7px 2px calc(7px + env(safe-area-inset-bottom))}
.tab{flex:1;text-align:center;color:var(--mu);font-size:10px;padding:2px 0;transition:.2s;cursor:pointer;min-width:0}
.tab i{display:block;font-size:18px;font-style:normal;line-height:1.35;filter:grayscale(1);opacity:.55;transition:.2s}
.tab.on{color:var(--pri);font-weight:600}
.tab.on i{filter:none;opacity:1;transform:translateY(-2px)}
.pad{padding:16px}
.sec-title{font-size:14px;font-weight:700;margin:20px 0 10px;display:flex;
  align-items:baseline;gap:8px;justify-content:space-between}
.sec-title:first-child{margin-top:0}
.sec-title .muted{font-size:11.5px;font-weight:400}
.muted{color:var(--mu);font-size:12.5px}
.card{background:var(--card);border-radius:var(--r);padding:16px;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10);margin-bottom:12px}
.btn{width:100%;padding:13px;border-radius:14px;font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#8b5cf6,#5b6cff);
  box-shadow:0 8px 20px -8px rgba(139,92,246,.75);transition:.15s;margin-top:12px}
.btn:active{transform:scale(.975)}
.btn.ghost{background:#fff;color:var(--pri);border:1.5px solid #e5d9ff;box-shadow:none}
.btn.danger{background:#fdecec;color:#c02a2a;box-shadow:none;border:1.5px solid #fecaca}
.pill{padding:8px 14px;border-radius:22px;background:#f3f5fc;color:#4a5578;
  font-size:12.5px;font-weight:600;transition:.15s}
.pill:active{transform:scale(.95);background:#e8ebfa}
.pill.pri{background:linear-gradient(135deg,#8b5cf6,#5b6cff);color:#fff;
  box-shadow:0 6px 14px -6px rgba(139,92,246,.85)}
.kv{display:flex;gap:10px;padding:7px 0;border-top:1px dashed #eef0f7;font-size:13.5px}
.kv:first-of-type{border-top:none}
.kv>span{flex-shrink:0;width:52px;color:var(--mu);font-size:12.5px;padding-top:2px}
.kv>p{margin:0;flex:1}
.hero{background:linear-gradient(135deg,#8b5cf6,#5b6cff);border-radius:20px;padding:18px;
  color:#fff;display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 14px 28px -14px rgba(139,92,246,.85);position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;right:-30px;top:-40px;width:130px;height:130px;
  border-radius:50%;background:rgba(255,255,255,.13)}
.hero-t{font-size:19px;font-weight:800;letter-spacing:.3px}
.hero-s{font-size:12px;opacity:.9;margin-top:5px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.hero-pct{position:relative;z-index:2;text-align:center;background:rgba(255,255,255,.18);
  border-radius:14px;padding:8px 14px;backdrop-filter:blur(6px);flex-shrink:0}
.hero-pct b{display:block;font-size:20px;line-height:1.1}
.hero-pct span{font-size:10.5px;opacity:.85}
.stage-pill{display:inline-flex;align-items:center;gap:4px;cursor:pointer;
  background:rgba(255,255,255,.22);padding:3px 10px;border-radius:20px;
  font-size:11.5px;font-weight:700;transition:.15s}
.stage-pill:active{background:rgba(255,255,255,.35)}
.stage-pill .arr{opacity:.7;font-size:12px}
.stat-row{display:flex;gap:10px;margin-top:14px}
.stat{flex:1;background:#fff;border-radius:14px;padding:12px 8px;text-align:center;
  box-shadow:0 2px 12px -7px rgba(30,40,90,.18)}
.stat b{display:block;font-size:17px;color:var(--pri)}
.stat span{font-size:11.5px;color:var(--mu)}
.set-row{display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;border-bottom:1px solid var(--ln);gap:10px}
.set-row:last-child{border-bottom:none}
.set-l{font-size:14px;font-weight:600;flex:1}
.set-l em{display:block;font-style:normal;font-size:11.5px;color:var(--mu);font-weight:400;margin-top:2px}
.stepper{display:flex;align-items:center;gap:12px}
.stepper button{width:30px;height:30px;border-radius:10px;background:#f1f3fa;
  font-size:17px;font-weight:700;color:var(--pri);display:grid;place-items:center}
.stepper button:active{background:#e4e8fb}
.stepper b{min-width:32px;text-align:center;font-size:15px}
.seg{display:flex;background:#f1f3fa;border-radius:12px;padding:3px;gap:2px}
.seg div{padding:8px 10px;border-radius:9px;font-size:12px;font-weight:600;color:var(--mu);
  transition:.2s;flex:1;text-align:center;cursor:pointer}
.seg div.on{background:#fff;color:var(--pri);box-shadow:0 2px 8px -4px rgba(30,40,90,.3)}
.switch{width:48px;height:28px;border-radius:20px;background:#dfe3ee;position:relative;transition:.25s;flex-shrink:0;cursor:pointer}
.switch.on{background:linear-gradient(135deg,#8b5cf6,#5b6cff)}
.switch::after{content:'';position:absolute;width:22px;height:22px;border-radius:50%;
  background:#fff;top:3px;left:3px;transition:.25s;box-shadow:0 2px 6px rgba(0,0,0,.16)}
.switch.on::after{left:23px}
.list{background:#fff;border-radius:var(--r);overflow:hidden;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10)}
.word-row{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 16px;border-bottom:1px solid var(--ln);cursor:pointer}
.word-row:last-child{border-bottom:none}
.word-row:active{background:#f7f8fe}
.word-row.no-detail{cursor:default}
.word-row.no-detail:active{background:transparent}
.wr-w{font-size:16px;font-weight:700;letter-spacing:.3px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.wr-ph{font-size:11.5px;color:var(--mu);font-weight:500;letter-spacing:0}
.wr-p{font-size:12px;color:var(--mu);margin-top:1px}
.wr-p.none{color:#d4b483;font-style:italic}
.wr-r{display:flex;align-items:center;gap:8px;flex-shrink:0}
.tag{font-size:11px;padding:3px 9px;border-radius:20px;background:#f1f3fa;color:var(--mu);font-weight:600}
.tag.ok{background:#e7f9f1;color:var(--ok)}
.tag.wr{background:#fff5e6;color:var(--wr)}
.tag.custom{background:#eef0ff;color:var(--pri)}
.tag.db{background:#e0f2fe;color:#0ea5e9}
.tag.stage{background:#f3efff;color:#8b5cf6}
.search-box{background:#fff;border-radius:14px;padding:11px 14px;display:flex;
  align-items:center;gap:9px;box-shadow:0 2px 14px -6px rgba(30,40,90,.10)}
.sb-ico{color:#8b90a3;font-size:15px;flex-shrink:0}
.sb-input{flex:1;border:none;outline:none;background:transparent;font-size:14px;
  color:var(--tx);padding:2px 0;min-width:0}
.sb-input::placeholder{color:#b0b5c6}
.sb-clear{width:22px;height:22px;border-radius:50%;background:#f1f3fa;color:#8b90a3;
  display:grid;place-items:center;font-size:11px;flex-shrink:0;transition:.15s;cursor:pointer}
.sb-clear:active{background:#e4e8fb;color:var(--pri)}
.photo-search-btn{display:flex;align-items:center;gap:11px;width:100%;
  background:#fff;border-radius:14px;padding:13px 14px;margin-top:10px;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10);
  transition:.15s;text-align:left;font-family:inherit}
.photo-search-btn:active{transform:scale(.985);background:#faf7ff}
.psb-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:17px;background:linear-gradient(135deg,#f3efff,#eef0ff);flex-shrink:0}
.psb-main{flex:1;min-width:0;display:block}
.psb-t{font-size:14px;font-weight:800;color:var(--tx);letter-spacing:.2px;display:block}
.psb-s{font-size:11.5px;color:var(--mu);margin-top:2px;display:block}
.psb-arrow{color:#c7cbdb;font-size:18px;line-height:1;flex-shrink:0}
.lib-current{display:flex;align-items:center;gap:14px;cursor:pointer;
  padding:4px 0;transition:.15s}
.lib-current:active{opacity:.7}
.lib-current .lc-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-size:22px;background:linear-gradient(135deg,#f3efff,#eef0ff);flex-shrink:0}
.lib-current .lc-main{flex:1;min-width:0}
.lib-current .lc-name{font-size:15.5px;font-weight:800;color:var(--tx)}
.lib-current .lc-desc{font-size:12px;color:var(--mu);margin-top:3px}
.lib-current .lc-arrow{color:#c7cbdb;font-size:22px;line-height:1;flex-shrink:0}
.lib-grid{display:flex;flex-direction:column;gap:8px}
.lib-card{background:#fff;border-radius:14px;padding:12px 14px;position:relative;
  box-shadow:0 2px 12px -6px rgba(30,40,90,.10);transition:.15s;cursor:pointer;
  border:1.5px solid transparent;
  display:flex;align-items:center;gap:11px}
.lib-card:active{transform:scale(.985)}
.lib-card.using{border-color:#c9b8ff;background:linear-gradient(135deg,#faf7ff,#f2f4ff)}
.lib-card.custom{border-color:#dfe3ff;background:linear-gradient(135deg,#fafbff,#f2f4ff)}
.lib-card.bank{border-color:#ffe3a0;background:linear-gradient(135deg,#fffcf5,#fff9ec)}
.lib-card.textbook{border-color:#c7e6ff;background:linear-gradient(135deg,#f7fbff,#eef6ff)}
.lib-card.recommend{border-color:#a7f3d0;background:linear-gradient(135deg,#f0fdf9,#e7f9f1)}
.lc-badge{position:absolute;top:-6px;right:10px;font-size:9.5px;font-weight:700;
  background:linear-gradient(135deg,#8b5cf6,#5b6cff);color:#fff;
  padding:2px 7px;border-radius:20px;letter-spacing:.2px;line-height:1.6}
.lc-badge.mine{background:linear-gradient(135deg,#5b6cff,#34d399)}
.lc-badge.star{background:linear-gradient(135deg,#f59e0b,#f97316)}
.lc-badge.book{background:linear-gradient(135deg,#0ea5e9,#5b6cff)}
.lc-badge.rec{background:linear-gradient(135deg,#10b981,#34d399)}
.lc-icon2{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:17px;background:linear-gradient(135deg,#f3efff,#eef0ff);flex-shrink:0}
.lc-main{flex:1;min-width:0}
.lc-name2{font-size:14px;font-weight:800;letter-spacing:.2px;color:var(--tx);
  line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lc-desc2{font-size:11px;color:var(--mu);margin-top:2px;line-height:1.4;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lc-meta2{display:flex;align-items:center;gap:4px;font-size:10.5px;color:var(--mu);
  flex-shrink:0;line-height:1.3}
.lc-meta2 b{color:var(--pri);font-weight:800;font-size:12.5px}
.lc-arrow{color:#c7cbdb;font-size:18px;line-height:1;flex-shrink:0;margin-left:2px}
.lc-share{width:30px;height:30px;border-radius:50%;background:#f3efff;color:var(--pri);
  display:grid;place-items:center;font-size:14px;flex-shrink:0;
  transition:.15s;line-height:1;padding:0;margin-right:2px;
  box-shadow:0 2px 8px -4px rgba(139,92,246,.55)}
.lc-share:active{transform:scale(.9);background:#e5d9ff}
.lc-apply{border:none;font-family:inherit;cursor:pointer;flex-shrink:0;
  border-radius:999px;padding:6px 11px;font-size:11px;font-weight:800;line-height:1;
  color:#fff;background:linear-gradient(135deg,#8b5cf6,#5b6cff);
  box-shadow:0 4px 10px -6px rgba(91,108,255,.9);transition:.15s}
.lc-apply:active{transform:scale(.94)}
.lc-apply.on{background:#eef0f8;color:#9aa0b4;box-shadow:none;cursor:default}
.lc-del{width:30px;height:30px;border-radius:50%;background:#fdecec;color:#c02a2a;
  display:grid;place-items:center;font-size:13px;flex-shrink:0;
  transition:.15s;line-height:1;padding:0;margin-right:2px;font-weight:700}
.lc-del:active{transform:scale(.9);background:#fecaca}
.sec-add{font-size:12px;font-weight:700;color:var(--pri);background:#f3efff;
  padding:5px 12px;border-radius:20px;transition:.15s;cursor:pointer;
  display:inline-flex;align-items:center;gap:3px}
.sec-add:active{background:#e5d9ff;transform:scale(.96)}
.detail-foot{position:sticky;bottom:0;padding:12px 0 0;background:transparent}
.bar-row{margin-bottom:14px}
.bar-row:last-child{margin-bottom:0}
.bar-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px;
  align-items:baseline;gap:8px}
.bar-name{font-weight:700;color:var(--tx);flex:1;min-width:0}
.bar-val{font-weight:700;flex-shrink:0}
.bar-bg{height:9px;background:#eef0f7;border-radius:8px;overflow:hidden}
.bar-bg i{display:block;height:100%;border-radius:8px;
  background:linear-gradient(90deg,#8b5cf6,#5b6cff);transition:.5s}
.bar-bg i.err{background:linear-gradient(90deg,#f59e0b,#ef4444)}
.bar-bg i.ok{background:linear-gradient(90deg,#10b981,#34d399)}
.bar-bg i.na{background:#dfe3ee}
.empty{text-align:center;padding:40px 20px;color:var(--mu)}
.empty div:first-child{font-size:40px;margin-bottom:10px;opacity:.5}
.form-row{padding:12px 0;border-bottom:1px solid var(--ln)}
.form-row:first-child{padding-top:0}
.form-row:last-child{border-bottom:none;padding-bottom:0}
.form-label{font-size:12.5px;color:var(--mu);font-weight:600;margin-bottom:6px;display:block}
.form-label b{color:var(--err);margin-left:2px}
.form-input{width:100%;border:none;outline:none;background:#f7f8fd;
  border-radius:11px;padding:12px 14px;font-size:14.5px;font-weight:600;
  color:var(--tx);transition:.15s}
.form-input:focus{background:#fff;box-shadow:0 0 0 3px rgba(139,92,246,.14)}
.form-input::placeholder{color:#b0b5c6;font-weight:400}
.form-textarea{width:100%;border:none;outline:none;background:#f7f8fd;
  border-radius:11px;padding:12px 14px;font-size:14.5px;font-weight:600;
  color:var(--tx);transition:.15s;min-height:76px;resize:vertical;
  line-height:1.6;font-family:inherit}
.form-textarea:focus{background:#fff;box-shadow:0 0 0 3px rgba(139,92,246,.14)}
.form-textarea::placeholder{color:#b0b5c6;font-weight:400}
.word-input-box{background:#f7f8fd;border-radius:11px;padding:12px 14px;
  min-height:96px;transition:.15s}
.word-input-box:focus-within{background:#fff;box-shadow:0 0 0 3px rgba(139,92,246,.14)}
.word-input-area{width:100%;border:none;outline:none;background:transparent;
  font-size:14.5px;font-weight:600;color:var(--tx);min-height:72px;resize:none;
  line-height:1.7;font-family:inherit}
.word-input-area::placeholder{color:#b0b5c6;font-weight:400}
.word-count{font-size:11.5px;color:var(--mu);margin-top:8px;display:flex;
  justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}
.word-count b{color:var(--pri);font-weight:800}
.photo-drop{background:#fff;border:2px dashed #d9d0ff;border-radius:18px;
  padding:36px 20px;text-align:center;cursor:pointer;transition:.15s;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10)}
.photo-drop:active{transform:scale(.985);background:#faf7ff}
.pd-ico{font-size:44px;line-height:1;margin-bottom:10px}
.pd-t{font-size:16px;font-weight:800;color:var(--tx)}
.pd-s{font-size:12px;color:var(--mu);margin-top:6px;line-height:1.6}
.photo-preview{position:relative;border-radius:16px;overflow:hidden;
  box-shadow:0 4px 18px -8px rgba(30,40,90,.28);margin-bottom:12px}
.photo-preview img{width:100%;display:block;max-height:280px;object-fit:cover}
.pp-close{position:absolute;top:10px;right:10px;width:30px;height:30px;
  border-radius:50%;background:rgba(0,0,0,.55);color:#fff;display:grid;
  place-items:center;font-size:15px;backdrop-filter:blur(4px);cursor:pointer}
.scan-spinner{width:34px;height:34px;margin:0 auto;border-radius:50%;
  border:3px solid #eef0f7;border-top-color:#8b5cf6;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.check{width:26px;height:26px;border-radius:50%;border:2px solid #dfe3ee;
  background:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;
  color:#fff;transition:.18s;cursor:pointer}
.check.on{background:linear-gradient(135deg,#8b5cf6,#5b6cff);border-color:transparent;
  box-shadow:0 4px 10px -4px rgba(139,92,246,.8)}
.check.dis{background:#f1f3fa;border-color:transparent;color:#b0b5c6;cursor:not-allowed}
.recognize-box{background:linear-gradient(135deg,#0ea5e9,#5b6cff);color:#fff;
  border-radius:16px;padding:14px 16px;margin-bottom:14px;
  box-shadow:0 10px 22px -12px rgba(14,165,233,.85)}
.rb-label{font-size:11px;opacity:.85;letter-spacing:2px;margin-bottom:8px}
.rb-sub{font-size:11.5px;opacity:.85;margin-top:10px;line-height:1.5}
.word-chips{display:flex;flex-wrap:wrap;gap:6px}
.word-chip{font-size:12.5px;font-weight:700;padding:5px 11px;border-radius:20px;
  background:rgba(255,255,255,.22);color:#fff;letter-spacing:.2px;line-height:1.4}
.word-chip.unknown{background:rgba(255,255,255,.14);opacity:.78;font-weight:500}
.word-chip.matched{background:rgba(255,255,255,.32);box-shadow:0 2px 6px -3px rgba(0,0,0,.35)}
.match-card{background:#fff;border-radius:14px;padding:13px 14px;position:relative;
  box-shadow:0 2px 12px -6px rgba(30,40,90,.10);cursor:pointer;
  border:1.5px solid transparent;display:flex;align-items:center;gap:11px;
  transition:.15s;margin-bottom:8px}
.match-card:active{transform:scale(.985)}
.match-card.best{border-color:#c7e6ff;background:linear-gradient(135deg,#f7fbff,#eef6ff)}
.match-card.using{border-color:#c9b8ff;background:linear-gradient(135deg,#faf7ff,#f2f4ff)}
.mc-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-size:19px;background:linear-gradient(135deg,#eef6ff,#e0f2fe);flex-shrink:0}
.mc-main{flex:1;min-width:0}
.mc-name{font-size:14px;font-weight:800;color:var(--tx);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:6px}
.mc-hit{font-size:10px;font-weight:700;color:#0ea5e9;background:#e0f2fe;
  padding:2px 7px;border-radius:20px;flex-shrink:0}
.mc-meta{font-size:11px;color:var(--mu);margin-top:3px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mc-words{font-size:10.5px;color:#5b6cff;margin-top:3px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mc-words b{color:var(--pri);font-weight:700}
.mc-match{flex-shrink:0;text-align:right;padding-left:8px}
.mc-pct{font-size:20px;font-weight:900;line-height:1.1;letter-spacing:-.6px}
.mc-pct.high{color:#10b981}
.mc-pct.mid{color:#0ea5e9}
.mc-pct.low{color:#f59e0b}
.mc-label{font-size:10px;color:var(--mu);margin-top:2px;letter-spacing:1px}
.mc-bar{margin-top:8px;height:5px;background:#eef0f7;border-radius:4px;overflow:hidden}
.mc-bar i{display:block;height:100%;border-radius:4px;transition:.4s}
.mc-bar i.high{background:linear-gradient(90deg,#10b981,#34d399)}
.mc-bar i.mid{background:linear-gradient(90deg,#0ea5e9,#5b6cff)}
.mc-bar i.low{background:linear-gradient(90deg,#f59e0b,#f97316)}
.word-detail-h{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:4px}
.wd-word{font-size:26px;font-weight:800;letter-spacing:.4px;color:var(--tx);line-height:1.2}
.wd-ph{font-size:13.5px;color:var(--mu);margin-top:4px;letter-spacing:.3px}
.wd-source{display:inline-flex;align-items:center;gap:4px;font-size:10.5px;
  font-weight:700;padding:3px 9px;border-radius:20px;flex-shrink:0}
.wd-source.db{background:#e0f2fe;color:#0ea5e9}
.wd-source.self{background:#f3efff;color:#8b5cf6}
.wd-section{padding:10px 0;border-top:1px dashed #eef0f7}
.wd-section:first-of-type{border-top:none}
.wd-label{font-size:11.5px;color:var(--mu);font-weight:600;margin-bottom:6px;letter-spacing:.5px}
.wd-core{font-size:16px;font-weight:700;color:var(--tx);line-height:1.55}
.wd-chips{display:flex;flex-wrap:wrap;gap:6px}
.wd-chip{font-size:12px;font-weight:600;padding:5px 11px;border-radius:9px;
  background:#f2f4fb;color:#4a5578;line-height:1.4}
.wd-ex{padding:9px 0;border-top:1px dashed #eef0f7}
.wd-ex:first-of-type{border-top:none;padding-top:0}
.wd-ex-en{font-size:14px;line-height:1.7;font-weight:500}
.wd-ex-zh{font-size:12px;color:var(--mu);margin-top:3px}
.wd-nodata{color:#d4b483;font-size:13.5px;font-style:italic;padding:8px 0}
.stage-row{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed #eef0f7}
.stage-row:last-child{border-bottom:none;padding-bottom:0}
.stage-row:first-child{padding-top:0}
.stage-num{width:26px;height:26px;border-radius:9px;flex-shrink:0;margin-top:2px;
  background:linear-gradient(135deg,#8b5cf6,#5b6cff);color:#fff;
  font-size:12.5px;font-weight:800;display:grid;place-items:center;
  box-shadow:0 4px 10px -5px rgba(139,92,246,.75)}
.stage-main{flex:1;min-width:0}
.stage-t{font-size:13.5px;font-weight:800;color:var(--tx);letter-spacing:.2px;
  display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.stage-age{font-size:10.5px;font-weight:700;color:var(--pri);background:#f3efff;
  padding:2px 7px;border-radius:20px;letter-spacing:.2px}
.stage-d{font-size:12.5px;color:var(--mu);margin-top:5px;line-height:1.7}
.stage-d b{color:#5b6cff;font-weight:700}
.tip-banner{background:linear-gradient(135deg,#faf7ff,#eef0ff);
  border:1.5px solid #e5d9ff;border-radius:14px;padding:12px 14px;
  font-size:12.5px;color:#4a5578;line-height:1.75}
.tip-banner b{color:var(--pri)}
.stage-pick-card{background:#fff;border-radius:14px;padding:14px;position:relative;
  border:1.5px solid transparent;cursor:pointer;display:flex;align-items:flex-start;gap:12px;
  transition:.15s;margin-bottom:8px;box-shadow:0 2px 12px -6px rgba(30,40,90,.10)}
.stage-pick-card:active{transform:scale(.985)}
.stage-pick-card.on{border-color:#c9b8ff;background:linear-gradient(135deg,#faf7ff,#f2f4ff)}
.spc-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-size:22px;background:linear-gradient(135deg,#f3efff,#eef0ff);flex-shrink:0}
.spc-main{flex:1;min-width:0}
.spc-name{font-size:15.5px;font-weight:800;color:var(--tx);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.spc-age{font-size:10.5px;font-weight:700;color:var(--pri);background:#f3efff;
  padding:2px 8px;border-radius:20px}
.spc-desc{font-size:12px;color:var(--mu);margin-top:4px;line-height:1.55}
.spc-preset{font-size:11px;color:#5b6cff;margin-top:6px;line-height:1.6}
.spc-preset b{color:#8b5cf6}
.stage-radio{width:24px;height:24px;border-radius:50%;border:2px solid #dfe3ee;
  display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;
  background:#fff;flex-shrink:0;transition:.2s;margin-top:8px}
.stage-radio.on{background:linear-gradient(135deg,#8b5cf6,#5b6cff);border-color:transparent;
  box-shadow:0 4px 10px -4px rgba(139,92,246,.8)}
.ratio-wrap{background:#f7f8fd;border-radius:14px;padding:14px;margin-top:10px}
.ratio-bar{display:flex;height:26px;border-radius:8px;overflow:hidden;
  box-shadow:inset 0 1px 3px rgba(0,0,0,.05)}
.ratio-new{background:linear-gradient(135deg,#8b5cf6,#a78bfa);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.3px;
  transition:flex-basis .3s ease}
.ratio-review{background:linear-gradient(135deg,#0ea5e9,#5b6cff);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.3px;
  transition:flex-basis .3s ease}
.ratio-legend{display:flex;justify-content:space-between;margin-top:10px;font-size:11.5px;color:var(--mu)}
.ratio-legend .dot{display:inline-block;width:9px;height:9px;border-radius:3px;
  vertical-align:1px;margin-right:5px}
.ratio-legend .dot.purple{background:linear-gradient(135deg,#8b5cf6,#a78bfa)}
.ratio-legend .dot.blue{background:linear-gradient(135deg,#0ea5e9,#5b6cff)}
.type-picker{display:flex;gap:8px;margin-top:6px;flex-wrap:wrap}
.type-picker .tp{flex:1;min-width:70px;background:#f7f8fd;border:2px solid transparent;
  border-radius:13px;padding:12px 6px;text-align:center;cursor:pointer;transition:.15s}
.type-picker .tp:active{transform:scale(.97)}
.type-picker .tp.on{background:linear-gradient(135deg,#faf7ff,#eef0ff);
  border-color:#c9b8ff;box-shadow:0 4px 12px -6px rgba(139,92,246,.55)}
.type-picker .tp-ico{font-size:22px;line-height:1;margin-bottom:5px}
.type-picker .tp-t{font-size:12px;font-weight:800;color:var(--tx)}
.type-picker .tp.on .tp-t{color:var(--pri)}
.type-picker .tp-s{font-size:10px;color:var(--mu);margin-top:2px}
.exam-preview{background:#fff;border-radius:14px;overflow:hidden;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10);margin-bottom:12px}
.ep-head{padding:14px 16px;border-bottom:1px solid var(--ln)}
.ep-title{font-size:15px;font-weight:800;color:var(--tx);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ep-meta{font-size:11.5px;color:var(--mu);margin-top:5px;line-height:1.7}
.ep-body{padding:12px 16px;max-height:320px;overflow-y:auto}
.ep-q{padding:10px 0;border-top:1px dashed #eef0f7;font-size:13px;line-height:1.7}
.ep-q:first-child{border-top:none;padding-top:0}
.ep-q-h{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}
.ep-q-num{width:20px;height:20px;border-radius:7px;background:#f3efff;color:#8b5cf6;
  font-size:11px;font-weight:800;display:grid;place-items:center;flex-shrink:0}
.ep-q-type{font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:20px;
  background:#f3efff;color:#8b5cf6}
.ep-q-type.choice{background:#e0f2fe;color:#0ea5e9}
.ep-q-type.cloze{background:#fef3c7;color:#b45309}
.ep-q-type.reading{background:#dbeafe;color:#1d4ed8}
.ep-q-word{font-size:15px;font-weight:800;color:var(--tx)}
.ep-q-zh{font-size:12px;color:var(--mu);margin-top:2px}
.ep-passage{font-size:13px;line-height:1.8;color:#4a5578;
  background:#f7f8fd;border-radius:10px;padding:10px 12px;margin:6px 0}
.ep-passage .blank{color:#8b5cf6;font-weight:800;letter-spacing:2px}
.ep-q-opts{margin-top:5px;font-size:12.5px;color:#4a5578;line-height:1.75}
.ep-q-opts span{display:inline-block;padding:2px 10px;background:#f7f8fd;
  border-radius:8px;margin:2px 4px 2px 0}
.ep-point{font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:20px;
  background:#f0fdf9;color:#0a8a63;white-space:nowrap;line-height:1.6}
.ep-point.sub{background:#f3f5fc;color:#8b90a3;font-weight:600}
.ep-points{padding:12px 16px;border-top:1px solid var(--ln);
  background:linear-gradient(135deg,#fafbff,#f6f9ff)}
.ep-points-t{font-size:12.5px;font-weight:800;color:var(--tx);margin-bottom:8px;
  display:flex;align-items:baseline;gap:6px;justify-content:space-between}
.ep-points-t .muted{font-size:10.5px;font-weight:400}
.ep-point-row{padding:7px 0;border-top:1px dashed #eef0f7}
.ep-point-row:first-of-type{border-top:none;padding-top:0}
.epr-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.epr-name{font-size:12.5px;font-weight:700;color:#4a5578}
.epr-cnt{font-size:11px;font-weight:700;color:#8b5cf6;background:#f3efff;
  padding:1px 8px;border-radius:20px;flex-shrink:0}
.epr-desc{font-size:11px;color:var(--mu);margin-top:3px;line-height:1.55}
.exam-result-empty{background:#fafbff;border:1.5px dashed #d9d0ff;border-radius:14px;
  padding:20px 16px;text-align:center;color:var(--mu);font-size:12.5px;line-height:1.75}
.exam-result-empty .er-ico{font-size:26px;margin-bottom:6px;opacity:.6}
.stage-advice{background:linear-gradient(135deg,#f0fdf9,#e7f9f1);
  border:1.5px solid #a7f3d0;border-radius:14px;padding:12px 14px;margin-bottom:12px}
.sa-t{font-size:13px;font-weight:800;color:#0a8a63;margin-bottom:6px;
  display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.sa-d{font-size:12.5px;color:#4a5578;line-height:1.75}
.sa-d b{color:#0a8a63}
.sa-d .no{color:#dc2626;font-weight:700}
.mask{position:fixed;inset:0;background:rgba(12,16,32,.45);z-index:100;display:none;
  align-items:flex-end;justify-content:center;backdrop-filter:blur(3px)}
.mask.on{display:flex}
.sheet{width:100%;max-width:480px;background:#fff;border-radius:22px 22px 0 0;
  padding:20px 20px calc(24px + env(safe-area-inset-bottom));max-height:80vh;overflow:auto;
  animation:up .26s cubic-bezier(.22,1,.36,1)}
@keyframes up{from{transform:translateY(100%)}to{transform:translateY(0)}}
.sheet-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.sheet-h b{font-size:22px;letter-spacing:.4px}
.sheet-x{width:30px;height:30px;border-radius:50%;background:#f1f3fa;display:grid;
  place-items:center;color:var(--mu);font-size:16px;cursor:pointer}
.confirm-mask{position:fixed;inset:0;background:rgba(12,16,32,.5);z-index:200;
  display:none;align-items:center;justify-content:center;padding:20px;
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.confirm-mask.on{display:flex}
.confirm-box{width:100%;max-width:340px;background:#fff;border-radius:20px;
  padding:22px 20px 18px;text-align:center;animation:pop .22s cubic-bezier(.22,1,.36,1)}
@keyframes pop{from{transform:scale(.88);opacity:0}to{transform:scale(1);opacity:1}}
.cf-ico{width:52px;height:52px;border-radius:50%;margin:0 auto 12px;display:grid;
  place-items:center;font-size:24px;
  background:linear-gradient(135deg,#f3efff,#eef0ff)}
.cf-ico.danger{background:linear-gradient(135deg,#fdecec,#fecaca)}
.cf-t{font-size:17px;font-weight:800;letter-spacing:.2px}
.cf-d{font-size:13px;color:#4a5578;margin-top:10px;line-height:1.7;text-align:left;
  background:#f7f8fd;border-radius:12px;padding:12px 14px}
.cf-d b{color:var(--pri)}
.cf-btns{display:flex;gap:10px;margin-top:18px}
.cf-btns button{flex:1;padding:12px;border-radius:13px;font-size:14.5px;font-weight:700;transition:.15s}
.cf-btns .cf-cancel{background:#f1f3fa;color:#4a5578}
.cf-btns .cf-cancel:active{background:#e4e8fb}
.cf-btns .cf-ok{background:linear-gradient(135deg,#8b5cf6,#5b6cff);color:#fff;
  box-shadow:0 8px 18px -8px rgba(139,92,246,.85)}
.cf-btns .cf-ok.danger{background:linear-gradient(135deg,#ef4444,#f97316);
  box-shadow:0 8px 18px -8px rgba(239,68,68,.85)}
.cf-btns .cf-ok:active{transform:scale(.975)}
.toast{position:fixed;left:50%;top:80px;transform:translateX(-50%) translateY(-12px);
  background:rgba(16,185,129,.96);color:#fff;padding:11px 20px;border-radius:14px;
  font-size:13.5px;font-weight:700;z-index:300;opacity:0;pointer-events:none;
  transition:.28s;box-shadow:0 10px 24px -10px rgba(16,185,129,.9);
  white-space:nowrap;max-width:90vw;overflow:hidden;text-overflow:ellipsis}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.code-box{background:linear-gradient(135deg,#8b5cf6,#5b6cff);color:#fff;
  border-radius:14px;padding:18px 14px;text-align:center;line-height:1.6;
  box-shadow:0 10px 22px -12px rgba(139,92,246,.9)}
.code-box .code-l{font-size:11.5px;opacity:.85;margin-bottom:8px;letter-spacing:2px}
.code-box .code-v{font-size:13px;font-weight:700;letter-spacing:.5px;
  font-family:ui-monospace,Menlo,Consolas,monospace;word-break:break-all}
.code-hint{background:#f7f8fd;border-radius:12px;padding:12px 14px;margin-top:12px;
  font-size:12.5px;color:#4a5578;line-height:1.7}
.code-hint b{color:var(--pri)}
.import-ok{background:#e7f9f1;border:1.5px solid #a7f3d0;color:#0a8a63;
  border-radius:12px;padding:12px 14px;font-size:13px;font-weight:700;margin-top:12px}
.import-err{background:#fdecec;border:1.5px solid #fecaca;color:#c02a2a;
  border-radius:12px;padding:12px 14px;font-size:13px;font-weight:700;margin-top:12px}
.code-input{width:100%;padding:14px;border-radius:14px;border:2px solid #e6e9f5;
  font-size:13px;letter-spacing:1px;outline:none;background:#fafbff;font-weight:600}
.code-input:focus{border-color:#c9b8ff;background:#fff;box-shadow:0 0 0 4px rgba(139,92,246,.10)}
.vocab-card{background:linear-gradient(135deg,#fff,#fafbff);
  border:1.5px solid #e5d9ff}
.vocab-num{font-size:36px;font-weight:900;line-height:1.05;letter-spacing:-1px}
.vocab-num span{font-size:15px;color:var(--mu);font-weight:600;letter-spacing:0;margin-left:4px}
.conclusion-card{background:linear-gradient(135deg,#f0fdf9,#e7f9f1);
  border:1.5px solid #a7f3d0;border-radius:16px;padding:16px;margin-bottom:12px}
.conclusion-card.warn{background:linear-gradient(135deg,#fffbeb,#fff5e6);
  border-color:#ffd9a0}
.conclusion-card.bad{background:linear-gradient(135deg,#fef2f2,#fdecec);
  border-color:#fecaca}
.cc-emoji{font-size:28px;line-height:1;margin-bottom:6px}
.cc-title{font-size:16px;font-weight:800;color:#0a8a63;letter-spacing:.2px}
.conclusion-card.warn .cc-title{color:#c2410c}
.conclusion-card.bad .cc-title{color:#c02a2a}
.cc-desc{font-size:13px;color:#4a5578;margin-top:6px;line-height:1.7}
.cc-desc b{color:#0a8a63}
.conclusion-card.warn .cc-desc b{color:#c2410c}
.conclusion-card.bad .cc-desc b{color:#c02a2a}
.auto-exam-tip{background:linear-gradient(135deg,#fff5e6,#ffeacc);
  border:1.5px solid #ffd9a0;border-radius:16px;padding:14px 16px;margin-top:12px}
.auto-exam-tip .aet-t{font-size:14px;font-weight:800;color:#c2410c;
  display:flex;align-items:center;gap:6px}
.auto-exam-tip .aet-d{font-size:12px;color:#7a4a1a;margin-top:5px;line-height:1.6}
.btn[disabled]{opacity:.45;pointer-events:none}
.chip{display:inline-block;background:#f2f4fb;color:#4a5578;border-radius:8px;
  padding:3px 9px;font-size:12px;margin:2px 5px 2px 0}
.retry-tip{background:#fff5e6;border:1.5px solid #ffd9a0;color:#b45309;
  border-radius:14px;padding:12px 14px;font-size:13px;font-weight:600;
  margin-bottom:12px;line-height:1.65;animation:shake .45s}
.retry-tip .rt-t{font-size:13.5px;font-weight:800;color:#c2410c;margin-bottom:3px}
.retry-tip b{color:#c2410c;letter-spacing:.6px}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}
  60%{transform:translateX(5px)}80%{transform:translateX(-3px)}}
.big-start{position:relative;--bs-r:20px;background:#fff;border-radius:var(--bs-r);
  padding:24px 18px 20px;text-align:center;
  box-shadow:0 6px 24px -10px rgba(30,40,90,.22);margin-top:14px;
  border:2px solid transparent;transition:.15s;cursor:pointer}
.big-start:active{transform:scale(.982);border-color:#dfe3ff}
.big-start.done{border-color:#c9f3e2}
/* 开始态（.play）：卡片还是原来的白底深字，只在外圈加一圈流光。
   底色：白色铺 padding-box、渐变铺 border-box，于是渐变只落在外圈边框上（自带圆角）。
   匀速画圈：conic 做不到——它绕盒子中心匀角速度，长方形上长边看着慢、短边看着快。
   所以桥接脚本（AY.flowRing）再塞一层 SVG 描边（.bs-ring），用虚线光带沿真实路径跑，
   周长上的长度固定，长短边速度就一致了；没有脚本时退回下面 conic 自转，照样有流动感。 */
@property --bsAng{syntax:'<angle>';inherits:false;initial-value:0deg}
.big-start.play{
  border-width:3px;
  background:linear-gradient(#fff,#fff) padding-box,
    conic-gradient(from var(--bsAng,0deg),
      rgba(91,108,255,.55) 0deg,rgba(139,92,246,.62) 80deg,rgba(103,232,249,.7) 140deg,
      rgba(139,92,246,.62) 200deg,rgba(91,108,255,.55) 280deg,rgba(91,108,255,.55) 360deg) border-box;
  animation:bsFlow 3.6s linear infinite,bsBloom 3.6s ease-in-out infinite}
.big-start.play:active{border-color:transparent}
/* 有 SVG 光带时底色渐变停住，免得两股光各转各的 */
.big-start.play.bs-run{animation:bsBloom 3.6s ease-in-out infinite}
@keyframes bsFlow{to{--bsAng:360deg}}
@keyframes bsBloom{
  0%,100%{box-shadow:0 6px 24px -10px rgba(30,40,90,.22),0 0 0 0 rgba(91,108,255,0)}
  50%{box-shadow:0 6px 24px -10px rgba(30,40,90,.22),0 0 26px -2px rgba(91,108,255,.5)}}
/* SVG 光带：绝对定位的 inset 是"内边距盒"，-1.5px 正好让盒子落在边框盒内 1.5px 处，
   描边居中刚好压住卡片那 3px 边框，所以描边圆角＝卡片圆角 - 1.5px。
   pathLength=1000 把周长归一化，虚线长度＝周长的百分比，换屏幕大小也不变形。 */
.bs-ring{position:absolute;inset:-1.5px;width:calc(100% + 3px);height:calc(100% + 3px);
  display:block;overflow:visible;pointer-events:none}
.bs-ring rect{fill:none;stroke-width:3;stroke-linecap:round;
  x:0;y:0;width:100%;height:100%;
  rx:calc(var(--bs-r,20px) - 1.5px);ry:calc(var(--bs-r,20px) - 1.5px)}
.bs-ring .bs-tail{stroke:rgba(139,92,246,.5);stroke-dasharray:430 1000;
  animation:bsRingTail 3.6s linear infinite}
.bs-ring .bs-head{stroke:#22d3ee;stroke-dasharray:150 1000;
  filter:drop-shadow(0 0 3px rgba(34,211,238,.9));
  animation:bsRingHead 3.6s linear infinite}
@keyframes bsRingHead{from{stroke-dashoffset:0}to{stroke-dashoffset:-1000}}
@keyframes bsRingTail{from{stroke-dashoffset:280}to{stroke-dashoffset:-720}}
@media (prefers-reduced-motion:reduce){.big-start.play{animation:none}.bs-ring rect{animation:none}}
.bs-ico{font-size:36px;line-height:1;margin-bottom:8px}
.bs-t{font-size:19px;font-weight:800;letter-spacing:.3px}
.bs-s{font-size:12.5px;color:var(--mu);margin-top:5px}
.bs-bar{height:7px;background:#eef0f7;border-radius:8px;overflow:hidden;margin-top:16px}
.bs-bar i{display:block;height:100%;border-radius:8px;
  background:linear-gradient(90deg,#5b6cff,#8b5cf6);transition:.5s}
.bs-flow{display:flex;justify-content:center;gap:6px;margin-top:14px;flex-wrap:wrap}
.bs-flow span{font-size:11px;color:#7a82a0;background:#f4f6fc;border-radius:20px;padding:3px 10px;font-weight:600}
.review-strip{display:flex;align-items:center;gap:12px;background:#fff;border-radius:16px;
  padding:14px 16px;margin-top:12px;box-shadow:0 2px 14px -6px rgba(30,40,90,.10);
  transition:.15s;cursor:pointer}
.review-strip:active{transform:scale(.982);background:#f7f8fe}
.rs-ico{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  font-size:17px;background:linear-gradient(135deg,#eef0ff,#f3efff);flex-shrink:0}
.rs-main{flex:1;min-width:0}
.rs-t{font-size:14.5px;font-weight:700}
.rs-s{font-size:11.5px;color:var(--mu);margin-top:1px}
.rs-n{font-size:12px;font-weight:700;color:#5b6cff;background:#eef0ff;
  padding:3px 10px;border-radius:20px;flex-shrink:0}
.rs-arrow{color:#c7cbdb;font-size:20px;line-height:1;flex-shrink:0}
.arrow{color:#c7cbdb;font-size:20px;line-height:1}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mini{background:#fff;border-radius:var(--r);padding:16px 14px;font-size:14px;font-weight:700;
  box-shadow:0 2px 14px -6px rgba(30,40,90,.10);transition:.15s}
.mini:active{transform:scale(.97)}
.mini span{display:block;font-size:11.5px;color:var(--mu);font-weight:400;margin-top:5px}
.learn-head{padding:12px 16px 0}
.lh-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.lh-row .lh-l{font-size:12.5px;color:var(--mu);font-weight:600}
.lh-row .lh-r{font-size:15px;font-weight:800;color:var(--pri);letter-spacing:.3px}
.steps{display:flex;gap:5px;margin-top:10px}
.step{flex:1;text-align:center;font-size:11px;font-weight:600;color:var(--mu);
  padding:6px 0;border-radius:9px;background:#fff;transition:.25s}
.step.cur{background:linear-gradient(135deg,#5b6cff,#8b5cf6);color:#fff;
  box-shadow:0 6px 16px -8px rgba(91,108,255,.9)}
.step.done{background:#e7f9f1;color:var(--ok)}
.word-hero{background:#fff;border-radius:20px;padding:22px 16px 18px;text-align:center;
  box-shadow:0 2px 16px -6px rgba(30,40,90,.12);margin-bottom:12px}
.letters{font-size:38px;font-weight:800;letter-spacing:1px;display:flex;
  justify-content:center;gap:2px;flex-wrap:wrap;margin-bottom:8px}
.phonetics{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;color:#3f4a6b;
  font-size:17px;font-weight:600;letter-spacing:.2px;margin-bottom:10px}
.lt,.ph{transition:.2s;padding:3px 7px;border-radius:8px;cursor:pointer}
.ph{background:#f4f6fd}
.lt.hl{background:linear-gradient(135deg,#5b6cff,#8b5cf6);color:#fff;transform:translateY(-3px);
  box-shadow:0 8px 16px -8px rgba(91,108,255,.9)}
.ph.hl{background:#eef0ff;color:#5b6cff;font-weight:700}
.ph-tip{font-size:11.5px;color:var(--mu);min-height:18px;margin-bottom:12px}
.hero-btns{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.ct{font-size:17px;font-weight:700;margin-bottom:12px}
.pos{display:inline-block;font-size:11.5px;color:#8b5cf6;background:#f3efff;
  border-radius:6px;padding:2px 7px;margin-right:8px;font-weight:700;vertical-align:1px}
.ex{padding:11px 0;border-top:1px dashed #eef0f7}
.ex:first-child{border-top:none;padding-top:0}
.ex-en{font-size:14.5px;line-height:1.75;font-weight:500}
.ex-zh{font-size:12.5px;color:var(--mu);margin-top:3px}
.wt{cursor:pointer;border-radius:5px;padding:0 1px;transition:.12s}
.wt:active{background:#eef0ff;color:#5b6cff}
.blank{color:#5b6cff;font-weight:800;letter-spacing:1px}
.ex-spk{display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;background:#eef0ff;color:#5b6cff;font-size:13px;
  margin-left:8px;padding:0;vertical-align:-4px;flex-shrink:0;transition:.15s;
  box-shadow:0 2px 6px -3px rgba(91,108,255,.6)}
.ex-spk:active{transform:scale(.88);background:#dfe3ff}
.ex-spk.playing{background:linear-gradient(135deg,#5b6cff,#8b5cf6);color:#fff;
  animation:pulseSpk .9s infinite}
@keyframes pulseSpk{0%,100%{box-shadow:0 0 0 0 rgba(91,108,255,.45)}
  50%{box-shadow:0 0 0 8px rgba(91,108,255,0)}}
.learn-foot{position:fixed;left:0;right:0;bottom:calc(62px + env(safe-area-inset-bottom));
  max-width:480px;margin:0 auto;z-index:55;display:flex;gap:10px;padding:10px 16px 12px;
  background:linear-gradient(to top,rgba(242,244,249,.98) 0%,rgba(242,244,249,.92) 60%,rgba(242,244,249,.72) 100%);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid rgba(233,236,245,.9);box-shadow:0 -6px 20px -12px rgba(20,30,80,.28)}
.learn-foot .btn{margin-top:0;flex:1}
.learn-pad{padding:16px 16px 118px}
.big-word{font-size:36px;font-weight:800;letter-spacing:1px;margin:6px 0 2px}
.phon{color:#3f4a6b;font-size:18px;font-weight:600;letter-spacing:.3px;margin-bottom:14px}
.sylls{display:flex;justify-content:center;gap:6px;margin:6px 0 18px;flex-wrap:wrap}
.sylls span{background:#f2f4fb;color:#4a5578;border-radius:9px;padding:4px 11px;
  font-size:14px;font-weight:600}
.center{text-align:center}
.mic{width:76px;height:76px;border-radius:50%;font-size:30px;color:#fff;
  background:linear-gradient(135deg,#5b6cff,#8b5cf6);
  box-shadow:0 12px 26px -10px rgba(91,108,255,.95);margin:6px 0 10px;transition:.2s}
.mic:active{transform:scale(.93)}
.mic.rec{animation:pulse 1s infinite;background:linear-gradient(135deg,#ef4444,#f97316)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(239,68,68,.5)}50%{box-shadow:0 0 0 16px rgba(239,68,68,0)}}
.zh-hint{font-size:20px;font-weight:700;margin:8px 0 14px}
.spell-input{width:100%;padding:15px;border-radius:14px;border:2px solid #e6e9f5;
  font-size:20px;text-align:center;letter-spacing:3px;outline:none;background:#fafbff;
  transition:.2s;font-weight:700}
.spell-input:focus{border-color:#b9c1ff;background:#fff;box-shadow:0 0 0 4px rgba(91,108,255,.10)}
.spell-input.ok{border-color:#10b981;background:#f0fdf9;color:#0a8a63}
.opts{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.opt{background:#fff;border-radius:14px;padding:15px 16px;font-size:14.5px;font-weight:600;
  border:2px solid transparent;transition:.15s;box-shadow:0 2px 12px -7px rgba(30,40,90,.16)}
.opt:active{transform:scale(.985)}
.opt.ok{border-color:#10b981;background:#e7f9f1;color:#0a8a63}
.opt.err{border-color:#ef4444;background:#fdecec;color:#c02a2a}
.result-ok{color:var(--ok);font-weight:700;margin-top:12px;font-size:14px}
.result-err{color:var(--err);font-weight:700;margin-top:12px;font-size:14px}
.exam-bar{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.eb-l{font-size:12.5px;color:var(--mu);font-weight:600;flex-shrink:0}
.eb-progress{flex:1;height:7px;background:#e9ecf5;border-radius:10px;overflow:hidden}
.eb-progress i{display:block;height:100%;border-radius:10px;
  background:linear-gradient(90deg,#5b6cff,#8b5cf6);transition:.35s}

/* ---- 多页工程补充样式 ---- */
.pill.on{background:linear-gradient(135deg,#5b6cff,#8b5cf6);color:#fff;box-shadow:0 6px 14px -8px rgba(91,108,255,.9)}
.grid2{margin-bottom:12px}
input[type=range]{-webkit-appearance:none;appearance:none;height:6px;border-radius:6px;
  background:linear-gradient(90deg,#5b6cff,#8b5cf6);outline:none;margin:10px 0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;
  background:#fff;border:3px solid #5b6cff;box-shadow:0 3px 8px -3px rgba(91,108,255,.9);cursor:pointer}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid #5b6cff}
select,textarea{font-family:inherit;font-size:14px;border:1.5px solid #e6e9f5;border-radius:12px;
  padding:11px 12px;background:#fafbff;outline:none;width:100%;color:var(--tx);resize:vertical}
select:focus,textarea:focus{border-color:#b9c1ff;background:#fff;box-shadow:0 0 0 4px rgba(91,108,255,.10)}
.field{margin-bottom:12px}
.field>label{display:block;font-size:12.5px;font-weight:700;color:#4a5578;margin-bottom:6px}
.split{display:flex;gap:10px}
.split>*{flex:1}
.modal-card{max-width:360px;margin:auto;border-radius:20px;max-height:72vh}
.tag.pri{background:#eef0ff;color:var(--pri)}
.link{color:var(--pri);font-weight:700;text-decoration:none}
.mono{font-variant-numeric:tabular-nums}
.sticky-foot{position:fixed;left:0;right:0;bottom:calc(62px + env(safe-area-inset-bottom));max-width:480px;
  margin:0 auto;z-index:55;display:flex;gap:10px;padding:10px 16px 12px;
  background:linear-gradient(to top,rgba(242,244,249,.98),rgba(242,244,249,.75));
  backdrop-filter:blur(14px);border-top:1px solid rgba(233,236,245,.9)}
.sticky-foot .btn{margin-top:0;flex:1}
.pad-foot{padding-bottom:130px}