:root{
  --sky:#4FC3F7;
  --sky-deep:#29A3E0;
  --sun:#FFD54F;
  --coral:#FF8A65;
  --coral-deep:#F46B4E;
  --mint:#66BB6A;
  --mint-deep:#43A047;
  --lav:#9575CD;
  --lav-deep:#7E57C2;
  --pink:#F06292;
  --ink:#3D3A50;
  --paper:#FFFFFF;
  --bg1:#EAF7FF;
  --bg2:#FFF7E6;
  --radius:22px;
  --shadow:0 6px 18px rgba(80,120,180,.16);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:'ZCOOL KuaiLe','Baloo 2','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  color:var(--ink);
  background:linear-gradient(160deg,var(--bg1),var(--bg2) 60%,#FFF1F1);
  overflow-x:hidden;
  user-select:none;
  -webkit-user-select:none;
}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
img{-webkit-user-drag:none}

#app{display:flex;min-height:100vh}
#main{flex:1;min-width:0;display:flex;flex-direction:column}

#topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;
  background:linear-gradient(90deg,#FFB74D,#FF8A65);
  box-shadow:0 4px 14px rgba(255,138,101,.35);
}
.menu-btn{
  width:42px;height:42px;border-radius:14px;
  background:rgba(255,255,255,.25);color:#fff;
  font-size:24px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  flex:none;
}
.menu-btn:active{transform:scale(.92)}
.brand{
  font-size:19px;color:#fff;font-weight:700;
  text-shadow:0 2px 4px rgba(0,0,0,.15);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.top-date{
  margin-left:auto;flex:none;
  font-size:12px;color:#fff;opacity:.95;
  background:rgba(255,255,255,.22);border-radius:999px;padding:6px 12px;
  white-space:nowrap;
}

#view{
  flex:1;width:100%;max-width:560px;margin:0 auto;
  padding:14px 14px calc(86px + env(safe-area-inset-bottom));
  animation:fadeUp .25s ease;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes popIn{0%{transform:scale(.6);opacity:0}70%{transform:scale(1.08)}100%{transform:scale(1);opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes floatUp{0%{transform:translateY(0);opacity:1}100%{transform:translateY(-120vh);opacity:0}}
@keyframes spinPop{0%{transform:rotate(0) scale(.4);opacity:0}70%{transform:rotate(340deg) scale(1.15)}100%{transform:rotate(360deg) scale(1);opacity:1}}

.hero{
  background:linear-gradient(135deg,#FFD54F,#FFB74D);
  border-radius:26px;padding:20px 18px;color:#7A4F0A;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.hero h1{font-size:24px;margin-bottom:4px}
.hero p{font-size:14px;opacity:.85}
.hero .hero-emoji{position:absolute;right:14px;top:10px;font-size:56px;animation:bounce 2.2s ease infinite}
.streak-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border-radius:999px;padding:6px 14px;
  font-size:14px;font-weight:700;color:#E65100;margin-top:10px;
  box-shadow:0 2px 8px rgba(0,0,0,.08);
}

.section-title{
  display:flex;align-items:center;gap:8px;
  font-size:19px;font-weight:700;margin:20px 2px 10px;
}
.section-title .line{flex:1;height:3px;border-radius:3px;background:linear-gradient(90deg,#FFD54F,transparent)}

.card{
  background:var(--paper);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:14px;margin-bottom:12px;
}
.card.tap{transition:transform .12s ease}
.card.tap:active{transform:scale(.97)}

.task-row{
  display:flex;align-items:center;gap:12px;
  background:#fff;border-radius:18px;padding:12px 14px;margin-bottom:10px;
  box-shadow:0 3px 10px rgba(80,120,180,.10);
}
.task-row:active{transform:scale(.98)}
.task-ico{
  width:46px;height:46px;border-radius:14px;flex:none;
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.task-body{flex:1;min-width:0}
.task-body .t{font-size:16px;font-weight:700}
.task-body .s{font-size:12px;color:#8A8AA3;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.task-ck{
  width:34px;height:34px;border-radius:50%;flex:none;
  border:3px solid #DCE3EC;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;color:#fff;
}
.task-ck.on{background:var(--mint);border-color:var(--mint);animation:popIn .3s ease}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:16px;font-weight:700;color:#fff;
  box-shadow:0 4px 12px rgba(0,0,0,.14);
  transition:transform .1s ease;
}
.btn:active{transform:scale(.93)}
.btn:disabled{opacity:.5}
.btn-sun{background:linear-gradient(135deg,#FFD54F,#FF9800)}
.btn-sky{background:linear-gradient(135deg,#4FC3F7,#29A3E0)}
.btn-mint{background:linear-gradient(135deg,#81C784,#43A047)}
.btn-coral{background:linear-gradient(135deg,#FFAB91,#F46B4E)}
.btn-lav{background:linear-gradient(135deg,#B39DDB,#7E57C2)}
.btn-pink{background:linear-gradient(135deg,#F48FB1,#D81B60)}
.btn-ghost{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.btn-block{display:flex;width:100%}
.btn-sm{padding:8px 14px;font-size:13px}

.chip{
  display:inline-flex;align-items:center;gap:4px;
  background:#F3F7FF;border:2px solid #DDE8F8;
  border-radius:999px;padding:6px 14px;font-size:14px;
}
.chip:active{background:#E3EEFF}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}

.module-card{
  background:#fff;border-radius:20px;padding:14px 10px;text-align:center;
  box-shadow:0 4px 12px rgba(80,120,180,.12);
  transition:transform .12s ease;
}
.module-card:active{transform:scale(.94)}
.module-card .ico{font-size:40px;display:block;margin-bottom:6px}
.module-card .nm{font-size:14px;font-weight:700}
.module-card .st{font-size:11px;color:#8A8AA3;margin-top:2px}
.module-card .dot-done{
  position:absolute;margin:-6px 0 0 26px;width:22px;height:22px;
  background:var(--mint);border-radius:50%;color:#fff;font-size:12px;
  display:flex;align-items:center;justify-content:center;
}

.char-big{
  text-align:center;font-size:120px;line-height:1.2;font-weight:700;
  color:#3D3A50;text-shadow:0 6px 0 #F3E5C9;
}
.py-big{font-size:34px;color:var(--sky-deep);font-weight:700}
.info-line{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;font-size:15px;color:#8A8AA3;margin-top:6px}

.group-word{background:#FFF3E0;border-radius:16px;padding:10px 14px;font-size:18px;font-weight:700;color:#E65100}

.action-row{display:flex;gap:10px;margin-top:14px}
.action-row .btn{flex:1}

.q-card{
  background:#fff;border-radius:24px;padding:26px 18px;text-align:center;
  box-shadow:var(--shadow);margin-bottom:14px;
}
.q-card .ask{font-size:40px;font-weight:800;color:var(--ink);letter-spacing:2px}
.q-card .sub{font-size:15px;color:#8A8AA3;margin-top:6px}

.q-opts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.q-opt{
  background:linear-gradient(145deg,#fff,#F3F7FF);
  border-radius:20px;padding:20px 8px;text-align:center;
  box-shadow:0 4px 12px rgba(80,120,180,.14);
  font-size:32px;font-weight:800;
  transition:transform .1s ease;
}
.q-opt:active{transform:scale(.9)}
.q-opt.right{background:linear-gradient(145deg,#C8E6C9,#66BB6A);animation:popIn .35s ease}
.q-opt.wrong{animation:shake .4s ease;background:#FFCDD2}
.q-opt .o-sub{display:block;font-size:14px;color:#8A8AA3;margin-top:4px}

.stars{display:flex;justify-content:center;gap:4px;font-size:26px;margin:8px 0}

.video-slot{
  position:relative;border-radius:20px;overflow:hidden;
  background:linear-gradient(135deg,#7E57C2,#4FC3F7);
  color:#fff;padding:22px 16px;text-align:center;
  box-shadow:var(--shadow);
}
.video-slot .play{
  width:74px;height:74px;border-radius:50%;margin:0 auto 10px;
  background:#fff;display:flex;align-items:center;justify-content:center;
  font-size:30px;color:#7E57C2;animation:bounce 1.6s ease infinite;
}
.video-slot small{display:block;opacity:.85;font-size:12px;margin-top:8px;font-family:'Microsoft YaHei',sans-serif}

.back-bar{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.back-btn{
  width:40px;height:40px;border-radius:14px;background:#fff;
  box-shadow:0 3px 8px rgba(80,120,180,.15);
  font-size:19px;display:flex;align-items:center;justify-content:center;
}
.back-btn:active{transform:scale(.9)}
.back-title{font-size:19px;font-weight:700}

.poem-card{
  background:linear-gradient(160deg,#FFF8E1,#FFF3E0);
  border-radius:24px;padding:22px 18px;text-align:center;
  box-shadow:var(--shadow);margin-bottom:12px;position:relative;overflow:hidden;
}
.poem-card h2{font-size:24px}
.poem-card .au{font-size:14px;color:#8A8AA3;margin:4px 0 14px}
.poem-lines{font-size:23px;line-height:2;font-weight:700;color:#5D4037}
.poem-lines div:active{color:#FF7043}

.meaning{
  background:#fff;border-radius:18px;padding:14px;margin-top:12px;
  font-size:15px;line-height:1.8;color:#5D4037;
  font-family:'Microsoft YaHei',sans-serif;
}

.trace-box{position:relative;margin:0 auto}
.trace-box canvas{display:block;border-radius:18px;background:#fff;box-shadow:var(--shadow);touch-action:none}
.tool-row{display:flex;gap:8px;justify-content:center;margin-top:10px;flex-wrap:wrap}
.pen{width:38px;height:38px;border-radius:50%;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.pen:active{transform:scale(.85)}
.pen.on{outline:3px solid #333;outline-offset:2px}

.hz-box{width:200px;height:200px;margin:0 auto}

.list-card{
  display:flex;align-items:center;gap:12px;
  background:#fff;border-radius:18px;padding:12px 14px;margin-bottom:10px;
  box-shadow:0 3px 10px rgba(80,120,180,.10);
}
.list-card:active{transform:scale(.98)}
.list-card .ic{font-size:34px;width:44px;text-align:center;flex:none}
.list-card .bd{flex:1;min-width:0}
.list-card .t{font-size:16px;font-weight:700}
.list-card .s{font-size:12px;color:#8A8AA3;margin-top:2px;font-family:'Microsoft YaHei',sans-serif}
.list-card .ar{font-size:18px;color:#B9C4D4}

.story-page{
  background:linear-gradient(165deg,#E1F5FE,#FFF8E1);
  border-radius:24px;padding:24px 18px;text-align:center;
  box-shadow:var(--shadow);min-height:380px;display:flex;flex-direction:column;justify-content:center;gap:16px;
}
.story-page .sp-emoji{font-size:84px;animation:bounce 2s ease infinite}
.story-page .sp-text{font-size:20px;line-height:1.9;font-weight:700;color:#455A64;font-family:'Microsoft YaHei',sans-serif}
.pager{display:flex;justify-content:center;gap:8px;margin:14px 0}
.page-dot{width:10px;height:10px;border-radius:50%;background:#D4DCE6}
.page-dot.on{background:var(--coral);width:22px;border-radius:999px}

.talk-scene{
  background:linear-gradient(165deg,#E8F5E9,#FFF3E0);
  border-radius:24px;padding:30px 16px;text-align:center;
  box-shadow:var(--shadow);
}
.talk-scene .big{font-size:76px;line-height:1.3}
.q-list{list-style:none;margin-top:12px}
.q-list li{
  background:#fff;border-radius:16px;padding:12px 14px;margin-bottom:8px;
  font-size:16px;font-family:'Microsoft YaHei',sans-serif;
  box-shadow:0 2px 8px rgba(80,120,180,.08);
}
.word-bank{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}

.word-card{
  background:#fff;border-radius:20px;padding:14px 8px;text-align:center;
  box-shadow:0 4px 12px rgba(80,120,180,.12);
  transition:transform .12s ease;
}
.word-card:active{transform:scale(.92)}
.word-card .ic{font-size:42px;display:block}
.word-card .w{font-size:16px;font-weight:800;margin-top:4px;letter-spacing:.5px}
.word-card .z{font-size:12px;color:#8A8AA3}
.word-card .p{font-size:11px;color:var(--sky-deep);font-family:'Microsoft YaHei',sans-serif}

.letter-card{
  background:#fff;border-radius:18px;padding:14px 4px;text-align:center;
  box-shadow:0 4px 12px rgba(80,120,180,.12);
  transition:transform .12s ease;
}
.letter-card:active{transform:scale(.9)}
.letter-card .L{font-family:'Baloo 2','ZCOOL KuaiLe',sans-serif;font-size:36px;font-weight:800;color:var(--lav-deep)}
.letter-card .l{font-family:'Baloo 2',sans-serif;font-size:18px;color:#8A8AA3}

.sen-card{
  background:linear-gradient(135deg,#FCE4EC,#F8BBD0);
  border-radius:24px;padding:22px;text-align:center;
  box-shadow:var(--shadow);
}
.sen-card .emo{font-size:64px;animation:bounce 2s ease infinite}
.sen-card .en{font-family:'Baloo 2',sans-serif;font-size:26px;font-weight:800;color:#880E4F;margin-top:10px}
.sen-card .zh{font-size:16px;color:#AD1457;margin-top:6px;font-family:'Microsoft YaHei',sans-serif}

.cat-chip{display:inline-block;padding:8px 16px;border-radius:999px;background:#fff;box-shadow:0 2px 8px rgba(80,120,180,.1);font-size:14px;font-weight:700;margin:0 6px 8px 0}
.cat-chip.on{background:linear-gradient(135deg,#FFD54F,#FF9800);color:#fff}

.progress-track{background:#E8EEF5;border-radius:999px;height:16px;overflow:hidden;margin:12px 0}
.progress-bar{height:100%;border-radius:999px;background:linear-gradient(90deg,#FFD54F,#FF8A65);transition:width .3s ease}

.result-box{
  background:linear-gradient(135deg,#C8E6C9,#A5D6A7);
  border-radius:24px;padding:26px 18px;text-align:center;
  box-shadow:var(--shadow);animation:popIn .4s ease;
}
.result-box .r-emo{font-size:70px;animation:bounce 1.5s ease infinite}

#tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;justify-content:space-around;align-items:stretch;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-top:2px solid #F0E7DC;
  padding:6px 4px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -4px 16px rgba(80,120,180,.10);
}
#tabbar button{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:4px 0;font-size:21px;border-radius:14px;color:#9AA6B8;
}
#tabbar button span:first-child{font-size:21px}
#tabbar button span{font-size:11px;font-weight:700}
#tabbar button.on{color:#FF7043}
#tabbar button.on span{color:#FF7043}

#sidebar{display:none}

.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:80;
  background:linear-gradient(180deg,#FFB74D,#FF8A65);
  padding:20px 14px calc(30px + env(safe-area-inset-bottom));
  transform:translateX(-105%);transition:transform .25s ease;
  overflow-y:auto;
}
.drawer.open{transform:none}
.drawer .logo{font-size:20px;color:#fff;font-weight:700;text-align:center;margin-bottom:16px;text-shadow:0 2px 4px rgba(0,0,0,.15)}
.menu-group{background:rgba(255,255,255,.22);border-radius:18px;padding:10px;margin-bottom:12px}
.menu-group h3{font-size:14px;color:#7A4F0A;margin:4px 8px 8px;display:flex;align-items:center;gap:6px}
.menu-item{
  display:flex;align-items:center;gap:10px;
  background:#fff;border-radius:14px;padding:11px 12px;margin-bottom:8px;
  font-size:15px;font-weight:700;
}
.menu-item:active{transform:scale(.96)}
.menu-item:last-child{margin-bottom:0}
.menu-item .mi-ico{font-size:24px}
.menu-item .mi-ck{
  margin-left:auto;width:26px;height:26px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;font-size:13px;
  background:#E8EEF5;color:#8A8AA3;
}
.menu-item .mi-ck.on{background:var(--mint);color:#fff}

.mask{position:fixed;inset:0;background:rgba(40,40,70,.45);z-index:70;opacity:0;pointer-events:none;transition:opacity .25s ease}
.mask.show{opacity:1;pointer-events:auto}

.modal{
  position:fixed;inset:0;z-index:90;display:none;
  align-items:center;justify-content:center;padding:20px;
  background:rgba(30,30,60,.55);
}
.modal.show{display:flex}
.modal-card{
  background:#fff;border-radius:24px;padding:22px;width:100%;max-width:380px;
  max-height:86vh;overflow-y:auto;animation:popIn .3s ease;
}
.modal-card h3{font-size:18px;margin-bottom:12px;text-align:center}

.toast{
  position:fixed;left:50%;bottom:96px;transform:translateX(-50%) translateY(20px);
  background:rgba(50,50,80,.92);color:#fff;font-size:14px;
  padding:10px 20px;border-radius:999px;z-index:99;
  opacity:0;pointer-events:none;transition:all .25s ease;
  font-family:'Microsoft YaHei',sans-serif;text-align:center;max-width:82vw;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

#confetti{position:fixed;inset:0;z-index:85;pointer-events:none}

.float-emoji{position:absolute;font-size:26px;pointer-events:none;animation:floatUp linear forwards}

.emoji-bg{position:absolute;font-size:44px;opacity:.12;pointer-events:none}
.chk-badge{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--mint);color:#fff;font-size:13px;font-weight:700;
  border-radius:999px;padding:5px 12px;
}

.tab-head{display:flex;gap:8px;margin-bottom:14px;overflow-x:auto;padding-bottom:4px}
.tab-head::-webkit-scrollbar{display:none}
.tab-head .tb{
  flex:none;padding:9px 18px;border-radius:999px;background:#fff;
  box-shadow:0 2px 8px rgba(80,120,180,.10);font-size:14px;font-weight:700;
}
.tab-head .tb.on{background:linear-gradient(135deg,#FFD54F,#FF9800);color:#fff}

@media (min-width:900px){
  #sidebar{
    display:flex;flex-direction:column;width:230px;flex:none;
    position:sticky;top:0;height:100vh;
    background:linear-gradient(180deg,#FFB74D,#FF8A65);
    padding:22px 14px;
  }
  #sidebar .logo{font-size:20px;color:#fff;font-weight:700;text-align:center;margin-bottom:18px;text-shadow:0 2px 4px rgba(0,0,0,.15)}
  #tabbar{display:none}
  #view{max-width:640px;padding-bottom:40px}
  #topbar .brand{font-size:20px}
}