/* ============================================================
   自然拼读小课堂 · 样式
   面向幼儿园小朋友：大按钮、圆角、明快配色、动画反馈
   ============================================================ */

:root{
  --ink:#1c2b4a;
  --ink-2:#465a80;
  --muted:#7c8bab;
  --line:#e3ecfa;
  --card:#ffffff;
  --blue:#4a8cff;
  --blue-d:#2f6fe0;
  --green:#2fc46a;
  --green-d:#22a055;
  --orange:#ff9a3c;
  --orange-d:#ef8320;
  --pink:#ff77b0;
  --pink-d:#ec5c99;
  --purple:#9d7bff;
  --purple-d:#8460f0;
  --yellow:#ffc93c;
  --yellow-d:#eeb31b;
  --red:#ff5f6d;
  --red-d:#e64553;
  --radius:24px;
  --r-sm:16px;
  --shadow:0 10px 26px rgba(43,90,175,.10);
  --font: "Baloo 2","Comic Sans MS","Chalkboard SE","Segoe UI Rounded",
          "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font);
  color:var(--ink);
  min-height:100vh;
  background:
    radial-gradient(900px 420px at 12% -8%, #dcecff 0%, rgba(220,236,255,0) 70%),
    radial-gradient(760px 400px at 92% 4%, #ffeede 0%, rgba(255,238,222,0) 70%),
    linear-gradient(180deg,#f2f8ff 0%, #eef5ff 45%, #f8fbff 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

#app{
  max-width:960px;
  margin:0 auto;
  padding:14px 14px calc(30px + env(safe-area-inset-bottom));
  animation:fadeUp .28s ease both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- 通用元件 ---------- */
.card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  border:1px solid var(--line);
  padding:18px;
}

.btn{
  appearance:none;border:0;cursor:pointer;font-family:inherit;
  font-size:19px;font-weight:800;color:#fff;
  background:var(--blue);
  border-radius:var(--r-sm);
  padding:14px 22px;
  box-shadow:0 5px 0 var(--blue-d), 0 8px 18px rgba(74,140,255,.28);
  transition:transform .08s ease, box-shadow .08s ease, filter .15s;
  touch-action:manipulation;
  user-select:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--blue-d), 0 3px 10px rgba(74,140,255,.25);}
.btn.green{background:var(--green);box-shadow:0 5px 0 var(--green-d),0 8px 18px rgba(47,196,106,.25);}
.btn.green:active{box-shadow:0 1px 0 var(--green-d);}
.btn.orange{background:var(--orange);box-shadow:0 5px 0 var(--orange-d),0 8px 18px rgba(255,154,60,.25);}
.btn.orange:active{box-shadow:0 1px 0 var(--orange-d);}
.btn.pink{background:var(--pink);box-shadow:0 5px 0 var(--pink-d),0 8px 18px rgba(255,119,176,.25);}
.btn.pink:active{box-shadow:0 1px 0 var(--pink-d);}
.btn.purple{background:var(--purple);box-shadow:0 5px 0 var(--purple-d),0 8px 18px rgba(157,123,255,.25);}
.btn.purple:active{box-shadow:0 1px 0 var(--purple-d);}
.btn.yellow{background:var(--yellow);color:#6b4a00;box-shadow:0 5px 0 var(--yellow-d),0 8px 18px rgba(255,201,60,.3);}
.btn.yellow:active{box-shadow:0 1px 0 var(--yellow-d);}
.btn.ghost{
  background:#fff;color:var(--ink-2);border:2px solid var(--line);
  box-shadow:0 4px 0 #e6eefb;
}
.btn.ghost:active{box-shadow:0 1px 0 #e6eefb;}
.btn.sm{font-size:16px;padding:10px 16px;border-radius:14px;}
.btn.block{width:100%;}
.btn:disabled{opacity:.5;pointer-events:none;}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:2px solid var(--line);border-radius:999px;
  padding:6px 14px;font-weight:800;color:var(--ink-2);font-size:15px;
}

/* ---------- 首页 ---------- */
.hero{
  text-align:center;
  padding:22px 16px 18px;
  border-radius:28px;
  background:linear-gradient(135deg,#e8f1ff 0%, #fdf1e6 100%);
  border:1px solid #e5efff;
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.hero .balloon{
  font-size:46px;line-height:1;
  animation:float 2.8s ease-in-out infinite;
  display:inline-block;
}
@keyframes float{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-10px) rotate(3deg)}}
.hero h1{
  margin:8px 0 4px;
  font-size:clamp(22px,5.6vw,32px);
  line-height:1.25;
  letter-spacing:.3px;
  word-break:break-word;
  background:linear-gradient(90deg,#3b82f6,#8b5cf6,#ff77b0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{margin:0;color:var(--muted);font-size:15px;font-weight:700;line-height:1.6;}
.hero .stats{margin-top:14px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}

.section-title{
  display:flex;align-items:center;gap:8px;
  margin:26px 4px 12px;font-size:19px;font-weight:900;color:var(--ink);
}
.section-title .sub{font-size:13px;font-weight:700;color:var(--muted);margin-left:auto;}

/* 今日课程大卡 */
.today{
  margin-top:16px;
  display:flex;gap:16px;align-items:center;
  background:linear-gradient(120deg,#eaf3ff,#fff6ea);
  border:2px solid #e0edff;
  border-radius:28px;padding:18px;box-shadow:var(--shadow);
}
.today .emoji{font-size:52px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.08));}
.today .info{flex:1;min-width:0;}
.today .tag{
  display:inline-block;background:var(--blue);color:#fff;font-size:12px;font-weight:900;
  padding:3px 10px;border-radius:999px;letter-spacing:.5px;
}
.today h2{margin:8px 0 4px;font-size:22px;}
.today .words{color:var(--ink-2);font-weight:800;font-size:16px;letter-spacing:.5px;}
.today .btn{margin-top:12px;}

/* 课程列表 */
.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;}
.lesson-card{
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;
  box-shadow:var(--shadow);cursor:pointer;transition:transform .15s, box-shadow .15s;
  position:relative;overflow:hidden;
}
.lesson-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(43,90,175,.16);}
.lesson-card .day{font-size:12px;font-weight:900;color:var(--blue);letter-spacing:1px;}
.lesson-card h3{margin:6px 0 2px;font-size:19px;}
.lesson-card .date{color:var(--muted);font-size:13px;font-weight:700;}
.lesson-card .wl{
  margin-top:10px;display:flex;gap:6px;flex-wrap:wrap;
}
.lesson-card .wl span{
  background:#f2f7ff;border:1px solid #e2eeff;color:var(--blue-d);
  border-radius:10px;padding:3px 9px;font-size:14px;font-weight:800;letter-spacing:.5px;
}
.lesson-card .bar{margin-top:12px;height:9px;border-radius:99px;background:#eef3fc;overflow:hidden;}
.lesson-card .bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#5ee2a0,#2fc46a);transition:width .4s;}
.lesson-card .pct{margin-top:6px;font-size:12px;font-weight:800;color:var(--muted);}

.quick-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px;}
@media (max-width:520px){.quick-row{grid-template-columns:1fr;}}

.footer-note{
  margin-top:26px;padding:14px 16px;border-radius:18px;
  background:#fffdf5;border:1px dashed #f0dfae;color:#8a7431;
  font-size:13px;line-height:1.7;font-weight:700;
}

/* ---------- 课程页 ---------- */
.topbar{
  display:flex;align-items:center;gap:10px;
  position:sticky;top:0;z-index:20;
  padding:10px 4px;margin:-4px -4px 8px;
  background:linear-gradient(180deg,rgba(243,248,255,.97),rgba(243,248,255,.86) 70%,rgba(243,248,255,0));
  backdrop-filter:blur(6px);
}
.topbar h2{margin:0;font-size:20px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.icon-btn{
  border:0;background:#fff;border-radius:14px;width:42px;height:42px;font-size:20px;cursor:pointer;
  box-shadow:0 3px 0 #e6eefb, 0 6px 14px rgba(43,90,175,.1);
  display:grid;place-items:center;transition:transform .1s;flex:none;
}
.icon-btn:active{transform:translateY(3px);box-shadow:none;}

.tabbar{
  display:flex;gap:8px;overflow-x:auto;padding:6px 2px 10px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tabbar::-webkit-scrollbar{display:none;}
.tab{
  flex:none;border:2px solid var(--line);background:#fff;border-radius:18px;
  padding:9px 15px;font-family:inherit;font-weight:800;font-size:15px;color:var(--ink-2);
  cursor:pointer;display:flex;align-items:center;gap:7px;position:relative;
  transition:all .15s;white-space:nowrap;
}
.tab .ico{font-size:18px;}
.tab .done{
  position:absolute;top:-6px;right:-6px;background:var(--green);color:#fff;
  width:20px;height:20px;border-radius:50%;font-size:12px;display:grid;place-items:center;
  box-shadow:0 2px 6px rgba(47,196,106,.4);
}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:0 5px 14px rgba(28,43,74,.25);}

.panel{animation:fadeUp .25s ease both;}

/* ---------- 活动通用 ---------- */
.act-head{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap;}
.act-head .title{font-size:19px;font-weight:900;}
.act-head .tip{color:var(--muted);font-size:13px;font-weight:700;flex:1;min-width:140px;}

.progress-line{display:flex;gap:6px;align-items:center;margin-bottom:14px;}
.progress-line .dot{
  flex:1;height:10px;border-radius:99px;background:#e8f0fb;overflow:hidden;
}
.progress-line .dot i{display:block;height:100%;width:0;background:linear-gradient(90deg,#7cc0ff,#4a8cff);transition:width .3s;}
.progress-line .dot.ok i{background:linear-gradient(90deg,#7ee2a8,#2fc46a);}
.progress-line .dot.bad i{background:linear-gradient(90deg,#ffa3ab,#ff5f6d);}
.progress-line .count{font-weight:900;color:var(--muted);font-size:14px;flex:none;}

.stage{
  background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px 18px;
  box-shadow:var(--shadow);text-align:center;min-height:280px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
}
.stage .big-emoji{font-size:74px;line-height:1;animation:pop .35s cubic-bezier(.34,1.56,.64,1) both;}
@keyframes pop{from{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}
.stage .zh{font-size:17px;font-weight:800;color:var(--muted);}
.hint{font-size:15px;font-weight:800;color:var(--ink-2);}

/* 单词大字 */
.word-big{
  font-size:48px;font-weight:900;letter-spacing:4px;color:var(--ink);
  font-family:"Baloo 2","Comic Sans MS",var(--font);
}
.word-big .hl{color:var(--blue);}

/* 字母瓦片 */
.tiles{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}
.tile{
  width:66px;height:74px;border-radius:18px;border:2px solid #dfe9fa;background:#f7fbff;
  display:grid;place-items:center;font-size:34px;font-weight:900;color:var(--ink);
  font-family:"Baloo 2","Comic Sans MS",var(--font);
  cursor:pointer;transition:transform .12s, background .2s, border-color .2s, color .2s;
  box-shadow:0 4px 0 #e6eefb;
}
.tile:active{transform:translateY(4px);box-shadow:none;}
.tile.on{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-6px) scale(1.06);}
.tile.used{opacity:.25;pointer-events:none;transform:scale(.9);}
.tile.wrong{animation:shake .4s;background:#ffecee;border-color:#ffc9ce;color:var(--red);}
.tile.slot{background:#fff;border-style:dashed;border-color:#cfdcf2;color:transparent;cursor:default;}
.tile.slot.filled{border-style:solid;color:var(--blue-d);background:#f0f7ff;border-color:var(--blue);animation:pop .25s;}
.tile.slot.ok{border-color:var(--green);color:var(--green-d);background:#effbf4;}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-8px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)}}

/* 选项按钮 */
.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:520px;}
@media (max-width:420px){.options{grid-template-columns:1fr;}}
.opt{
  border:2px solid #dfe9fa;background:#fff;border-radius:20px;padding:14px 10px;cursor:pointer;
  font-family:inherit;transition:all .15s;box-shadow:0 4px 0 #e6eefb;
  display:flex;align-items:center;justify-content:center;gap:10px;
}
.opt:hover{border-color:#c6dbff;background:#f8fbff;}
.opt .oemoji{font-size:30px;}
.opt .oword{font-size:22px;font-weight:900;letter-spacing:1px;font-family:"Baloo 2","Comic Sans MS",var(--font);}
.opt:active{transform:translateY(4px);box-shadow:none;}
.opt.right{background:#e9fbf1;border-color:var(--green);box-shadow:0 4px 0 #bfe9d1;animation:pop .3s;}
.opt.right .oword{color:var(--green-d);}
.opt.wrong{background:#ffeff1;border-color:var(--red);box-shadow:0 4px 0 #ffd3d8;animation:shake .4s;}
.opt.wrong .oword{color:var(--red-d);}
.opt.dim{opacity:.45;}
.opt:disabled{cursor:default;}

/* 单个大播放按钮 */
.speaker{
  width:104px;height:104px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(160deg,#7cb8ff,#3f7ff0);color:#fff;font-size:44px;
  box-shadow:0 8px 0 #2f6fe0, 0 14px 30px rgba(63,127,240,.35);
  display:grid;place-items:center;transition:transform .1s;position:relative;
}
.speaker:active{transform:translateY(6px);box-shadow:0 2px 0 #2f6fe0;}
.speaker.sm{width:64px;height:64px;font-size:27px;box-shadow:0 6px 0 #2f6fe0;}
.speaker.pulse::after{
  content:"";position:absolute;inset:-8px;border-radius:50%;border:3px solid rgba(74,140,255,.5);
  animation:ring 1.2s ease-out infinite;
}
@keyframes ring{0%{transform:scale(.85);opacity:.9}100%{transform:scale(1.25);opacity:0}}

/* 单词卡（学发音） */
.word-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media (max-width:560px){.word-grid{grid-template-columns:1fr;}}
.word-card{
  background:#fff;border:2px solid var(--line);border-radius:24px;padding:16px;text-align:center;
  box-shadow:var(--shadow);transition:border-color .2s, transform .2s;
}
.word-card.active{border-color:var(--blue);transform:translateY(-3px);}
.word-card .wc-emoji{font-size:52px;line-height:1;}
.word-card .wc-word{
  font-size:34px;font-weight:900;letter-spacing:3px;margin:6px 0 2px;
  font-family:"Baloo 2","Comic Sans MS",var(--font);
}
.word-card .wc-zh{color:var(--muted);font-weight:800;font-size:15px;margin-bottom:10px;}
.word-card .tiles{margin-bottom:12px;}
.word-card .tile{width:50px;height:58px;font-size:26px;border-radius:14px;}
.word-card .row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;}

.rule-box{
  background:linear-gradient(120deg,#fff8ea,#eef6ff);
  border:2px dashed #ffd9a3;border-radius:20px;padding:14px 16px;margin-bottom:16px;
  font-weight:800;color:var(--ink-2);line-height:1.8;
}
.rule-box b{color:var(--orange-d);font-size:20px;letter-spacing:1px;font-family:"Baloo 2",var(--font);}
.rule-box .en{font-family:"Baloo 2","Comic Sans MS",var(--font);font-size:19px;color:var(--blue-d);}

.chip-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:4px;}
.chip{
  background:#f4f8ff;border:1px solid #e1ecfc;border-radius:14px;padding:6px 12px;
  font-weight:800;color:var(--blue-d);font-size:15px;letter-spacing:.5px;cursor:pointer;
  font-family:"Baloo 2","Comic Sans MS",var(--font);
}
.chip:active{background:#e8f1ff;}

/* 结果页 */
.result{text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;width:100%;}
.result .score{font-size:56px;font-weight:900;color:var(--green-d);}
.result .stars{font-size:40px;letter-spacing:6px;animation:pop .4s;}
.result h3{margin:0;font-size:24px;}
.result p{margin:0;color:var(--muted);font-weight:800;}
.result .row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;}

/* 错题本 */
.wrong-list{display:flex;flex-direction:column;gap:10px;width:100%;}
.wrong-item{
  display:flex;align-items:center;gap:12px;background:#fff8f8;border:2px solid #ffe0e3;
  border-radius:18px;padding:12px 14px;text-align:left;
}
.wrong-item .we{font-size:28px;}
.wrong-item .wt{flex:1;min-width:0;}
.wrong-item .wt b{font-size:20px;letter-spacing:1px;font-family:"Baloo 2","Comic Sans MS",var(--font);}
.wrong-item .wt small{display:block;color:var(--muted);font-weight:800;font-size:12px;}

/* 句子 */
.sent{
  font-size:26px;font-weight:900;line-height:1.6;letter-spacing:.5px;
  font-family:"Baloo 2","Comic Sans MS",var(--font);color:var(--ink);
  max-width:560px;
}
.sent .blank{
  display:inline-block;min-width:86px;border-bottom:5px solid var(--blue);
  color:var(--blue);margin:0 4px;border-radius:4px;
}
.sent .bl{color:var(--orange-d);}
.sent-zh{color:var(--muted);font-weight:800;font-size:15px;}
.sent-row{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:12px 14px;margin-bottom:10px;text-align:left;cursor:pointer;
  box-shadow:0 3px 0 #eef4fd;transition:transform .12s;
}
.sent-row:active{transform:translateY(3px);box-shadow:none;}
.sent-row .txt{flex:1;font-family:"Baloo 2","Comic Sans MS",var(--font);font-weight:900;font-size:19px;}
.sent-row .txt small{display:block;font-family:var(--font);font-weight:800;color:var(--muted);font-size:13px;letter-spacing:0;}

/* 反馈气泡 */
.pop-badge{
  position:fixed;left:50%;top:38%;transform:translate(-50%,-50%) scale(.5);
  font-size:76px;z-index:9000;pointer-events:none;opacity:0;
}
.pop-badge.show{animation:badgePop .85s ease forwards;}
@keyframes badgePop{
  0%{opacity:0;transform:translate(-50%,-50%) scale(.4)}
  35%{opacity:1;transform:translate(-50%,-50%) scale(1.15)}
  70%{opacity:1;transform:translate(-50%,-50%) scale(1)}
  100%{opacity:0;transform:translate(-50%,-90%) scale(1)}
}

/* toast */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);
  background:rgba(28,43,74,.94);color:#fff;font-weight:800;font-size:15px;
  padding:11px 20px;border-radius:999px;opacity:0;transition:all .25s;z-index:9500;
  pointer-events:none;max-width:86vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0);}

#fx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:9800;}

/* 家长面板 */
.parent-box{font-size:14px;line-height:1.9;color:var(--ink-2);font-weight:700;}
.parent-box code{
  background:#f2f7ff;border:1px solid #e2eeff;border-radius:8px;padding:1px 7px;
  font-family:Consolas,Monaco,monospace;color:var(--blue-d);font-size:13px;
}
.parent-box ol{padding-left:20px;margin:8px 0;}

/* ============================================================
   多主题结构：主题卡 / 最新更新 / 面包屑 / 歌词行 / 词块
   ============================================================ */

/* 通用进度条 */
.bar{height:9px;border-radius:99px;background:#eef3fc;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#5ee2a0,#2fc46a);transition:width .4s;}

/* ---------- 首页：最新更新 ---------- */
.mini-list{display:flex;flex-direction:column;gap:10px;}
.mini-item{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-left:6px solid var(--blue);border-radius:16px;padding:12px 14px;cursor:pointer;
  box-shadow:0 3px 0 #eef4fd;transition:transform .12s, box-shadow .12s;
}
.mini-item:hover{transform:translateX(3px);box-shadow:0 3px 0 #e6eefb, 0 8px 18px rgba(43,90,175,.1);}
.mini-item .mi-emoji{font-size:26px;flex:none;}
.mini-item .mi-txt{flex:1;min-width:0;}
.mini-item .mi-title{font-weight:900;font-size:17px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mini-item .mi-sub{font-weight:800;font-size:12px;color:var(--muted);margin-top:2px;}
.mini-item .mi-go{font-size:26px;color:#b9c9e4;font-weight:900;flex:none;}

/* ---------- 首页：主题卡 ---------- */
.track-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;}
.track-card{
  background:linear-gradient(150deg,var(--tcbg,#eef5ff),#fff 70%);
  border:2px solid #e6eefc;border-radius:26px;padding:18px;cursor:pointer;
  box-shadow:var(--shadow);transition:transform .16s, box-shadow .16s;
}
.track-card:hover{transform:translateY(-5px);box-shadow:0 18px 34px rgba(43,90,175,.16);border-color:var(--tc,#4a8cff);}
.tc-top{display:flex;align-items:center;gap:12px;}
.tc-emoji{
  font-size:30px;width:56px;height:56px;flex:none;border-radius:18px;display:grid;place-items:center;
  background:#fff;border:2px solid var(--tc,#4a8cff);box-shadow:0 4px 0 rgba(0,0,0,.05);
}
.tc-name{font-size:21px;font-weight:900;letter-spacing:.5px;color:var(--tc,#4a8cff);}
.tc-count{font-size:12px;font-weight:800;color:var(--muted);margin-top:2px;}
.tc-desc{margin-top:12px;color:var(--ink-2);font-weight:700;font-size:13.5px;line-height:1.65;min-height:44px;}
.tc-foot{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-weight:900;font-size:13px;color:var(--muted);}
.tc-warn{color:#f2803c;}

/* ---------- 主题页页头 ---------- */
.track-head{
  display:flex;gap:16px;align-items:center;padding:18px;border-radius:26px;
  background:linear-gradient(120deg,var(--tcbg,#eef5ff),#fff);
  border:2px solid #e9f0fd;box-shadow:var(--shadow);margin-bottom:6px;
}
.th-emoji{
  font-size:36px;width:70px;height:70px;flex:none;border-radius:22px;display:grid;place-items:center;
  background:#fff;border:2px dashed var(--tc,#4a8cff);
}
.th-name{font-size:24px;font-weight:900;color:var(--tc,#4a8cff);letter-spacing:.5px;}
.th-desc{color:var(--ink-2);font-weight:700;font-size:13.5px;line-height:1.6;margin-top:4px;}
.th-stats{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;margin:2px 4px 8px;font-weight:800;font-size:13px;}
.crumb-item{
  color:var(--blue-d);background:#eef5ff;border:1px solid #e1ecfc;border-radius:999px;
  padding:4px 12px;cursor:pointer;
}
.crumb-item:hover{background:#e3efff;}
.crumb-sep{color:#b9c9e4;font-weight:900;}
.crumb-cur{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 儿歌：歌词行 ---------- */
.line-card{
  display:flex;align-items:center;gap:12px;background:#fff;border:2px solid var(--line);
  border-radius:18px;padding:13px 15px;margin-bottom:10px;cursor:pointer;
  box-shadow:0 3px 0 #eef4fd;transition:transform .13s, background .2s, border-color .2s;
  text-align:left;
}
.line-card:active{transform:translateY(3px);box-shadow:none;}
.line-card .lc-em{font-size:22px;flex:none;opacity:.6;}
.line-card .lc-txt{flex:1;min-width:0;}
.line-card .lc-en{
  font-family:"Baloo 2","Comic Sans MS",var(--font);font-weight:900;font-size:20px;
  letter-spacing:.3px;color:var(--ink);line-height:1.35;
}
.line-card .lc-zh{color:var(--muted);font-weight:800;font-size:13px;margin-top:3px;}
.line-card .lc-num{
  flex:none;width:26px;height:26px;border-radius:50%;background:#eef5ff;color:var(--blue-d);
  font-size:13px;font-weight:900;display:grid;place-items:center;
}
.line-card.on{border-color:var(--pink);background:#fff5fa;transform:translateX(5px);}
.line-card.on .lc-num{background:var(--pink);color:#fff;}
.line-card.done{border-color:var(--green);background:#f1fdf6;}
.line-card.done .lc-num{background:var(--green);color:#fff;}
.line-card.done .lc-num::after{content:"";}

/* ---------- 词块（排一排 / 补一补 / 歌词填空） ---------- */
.token-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;align-items:center;}
.token{
  border:2px solid #dfe9fa;background:#f7fbff;border-radius:14px;padding:8px 15px;
  font-family:"Baloo 2","Comic Sans MS",var(--font);
  font-weight:900;font-size:20px;color:var(--ink);cursor:pointer;
  box-shadow:0 4px 0 #e6eefb;transition:transform .1s, background .2s, border-color .2s, color .2s;
}
.token:active{transform:translateY(4px);box-shadow:none;}
.token.used{opacity:.22;pointer-events:none;transform:scale(.92);}
.token.slot{
  background:#fff;border-style:dashed;border-color:#cfdcf2;min-width:64px;min-height:44px;
  color:transparent;cursor:default;box-shadow:none;
}
.token.slot.filled{
  border-style:solid;border-color:var(--blue);background:#f0f7ff;color:var(--blue-d);
  animation:pop .25s;box-shadow:0 4px 0 #dbe8fb;
}
.token.slot.ok{border-color:var(--green);background:#effbf4;color:var(--green-d);}
.token.ok{background:#e9fbf1;border-color:var(--green);color:var(--green-d);}
.token.bad{background:#ffeff1;border-color:var(--red);color:var(--red-d);animation:shake .4s;}
.token.dim{opacity:.4;}

/* 结果页与歌词清单 */
.result .stars{letter-spacing:3px;}
.sent-row .txt small{letter-spacing:0;}