/* =========================================================
   超级队长 · 英语科目 · 样式
   亮色主题 / 大触摸目标 / 无惩罚动效
   ========================================================= */
:root{
  --cream:#fff8ee;
  --paper:#ffffff;
  --ink:#33302e;
  --ink-soft:#6f6a66;
  --line:#efe4d4;
  --orange:#f2994a;
  --orange-deep:#e07c2c;
  --blue:#5b8def;
  --blue-soft:#eaf1ff;
  --green:#66b98a;
  --green-soft:#e8f7ee;
  --pink:#ef8f9c;
  --purple:#9b83d4;
  --yellow:#ffd777;
  --shadow:0 8px 28px rgba(120,90,55,.10);
  --radius:24px;
  --tap:64px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;height:100%;overflow-x:hidden}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--cream); color:var(--ink);
  -webkit-user-select:none;user-select:none;
  touch-action:manipulation;
  overscroll-behavior:none;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
input,select,textarea{
  -webkit-user-select:text;user-select:text;
  border:2px solid var(--line);border-radius:14px;background:#fff;
  padding:12px 14px;min-height:52px;font-size:16px;outline:none;width:100%;
}
input:focus,select:focus{border-color:var(--blue)}
h1,h2,h3,h4,p{margin:0}
#app{min-height:100vh}

/* ---------------- 通用组件 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:var(--tap);padding:0 24px;border-radius:18px;
  font-size:17px;font-weight:700;background:#fff;color:var(--ink);
  border:2px solid var(--line);box-shadow:0 3px 0 rgba(0,0,0,.04);
  transition:transform .12s ease,box-shadow .12s ease,background .15s;
}
.btn:active{transform:translateY(2px);box-shadow:none}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange-deep);font-size:20px}
.btn-primary:hover{background:var(--orange-deep)}
.btn-blue{background:var(--blue);color:#fff;border-color:#4274d6}
.btn-ghost{background:#fff}
.btn-sm{min-height:52px;font-size:15px;padding:0 16px;border-radius:14px}
.btn-danger{color:#c85a5a;border-color:#f3d7d7;background:#fff6f6}
.btn:disabled{opacity:.45;cursor:default}
.chip{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 16px;
  border-radius:999px;background:#fff;border:2px solid var(--line);
  font-size:15px;font-weight:600;
}
.chip.on{background:var(--blue-soft);border-color:var(--blue);color:#3c68c0}
.tag{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.3px}
.tag-p0{background:#ffe9d9;color:#c56b26}
.tag-p1{background:#e7f0ff;color:#4a74c8}
.tag-p2{background:#efeafb;color:#7a62b8}
.muted{color:var(--ink-soft)}
.tiny{font-size:13px}
.hr{height:1px;background:var(--line);margin:18px 0}

/* ---------------- 家长模式 ---------------- */
.parent-shell{max-width:1120px;margin:0 auto;padding:28px 24px 80px}
.topbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.logo{
  width:60px;height:60px;border-radius:20px;background:var(--yellow);
  display:grid;place-items:center;font-size:32px;flex:none;box-shadow:var(--shadow)
}
.topbar h1{font-size:26px;letter-spacing:.5px}
.topbar .sub{font-size:14px;color:var(--ink-soft);margin-top:4px}
.browser-note{
  margin-left:auto;max-width:330px;background:#fff;border:2px dashed var(--line);
  border-radius:16px;padding:10px 14px;font-size:13px;line-height:1.6;color:var(--ink-soft)
}
.hero{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:linear-gradient(120deg,#ffead0,#fff6e8 55%,#eaf2ff);
  border-radius:28px;padding:28px 32px;box-shadow:var(--shadow);margin-bottom:22px
}
/* 科目切换条：为语文 / 数学预留挂载点，各科存档互不影响 */
.subject-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:-6px 0 20px}
.sb-label{font-size:13px;font-weight:700;color:var(--ink-soft);margin-right:2px}
.subject-chip{
  display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 14px;
  border-radius:14px;border:2px solid var(--line);background:var(--paper);
  font-size:15px;font-weight:700;color:var(--ink-soft)
}
.subject-chip .si{font-size:19px}
.subject-chip em{font-style:normal;font-size:11px;font-weight:700;padding:2px 7px;border-radius:20px;background:var(--line);color:var(--ink-soft)}
.subject-chip.on{border-color:var(--orange);background:#fff2df;color:var(--ink)}
.subject-chip.on em{background:var(--orange);color:#fff}
.subject-chip.soon{opacity:.62;cursor:pointer}
.sb-note{font-size:12px;color:var(--ink-soft);margin-left:auto}
/* 可选云端持久化面板 */
.sync-chip{display:inline-flex;align-items:center;min-height:26px;padding:0 10px;border-radius:20px;font-size:12px;font-weight:700;background:var(--line);color:var(--ink-soft);white-space:nowrap}
.sync-chip.ok{background:#dff3e4;color:#2f7a4b}
.sync-chip.warn{background:#ffe6c2;color:#9a5b16}
.sync-panel{background:var(--paper);border-radius:20px;padding:18px 20px;box-shadow:var(--shadow);border:1px solid var(--line);margin-bottom:20px}
.sync-panel .desc{margin-top:8px}
.sync-panel .form-grid{margin-top:12px}
.sync-conflict{background:#fff3e0;border:2px solid #f2b26a;border-radius:16px;padding:14px 16px;margin-top:14px;font-size:14px;line-height:1.7;color:#7a4a12}
.hero h2{font-size:24px;margin-bottom:8px}
.hero p{font-size:15px;color:var(--ink-soft);line-height:1.7}
.hero .duration{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.limit-mode{display:flex;gap:8px;margin-top:18px}
.mode-btn{min-height:44px;padding:0 20px;border-radius:14px;border:2px solid #fff;background:rgba(255,255,255,.65);font-size:15px;font-weight:700;color:var(--ink-soft)}
.mode-btn.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.limit-note{font-size:12.5px;color:var(--ink-soft);line-height:1.6;margin-top:12px;max-width:520px}
.dur-btn{min-width:92px;min-height:60px;border-radius:18px;border:2px solid #fff;background:rgba(255,255,255,.65);font-weight:700;font-size:17px}
.dur-btn.on{background:var(--orange);color:#fff;border-color:var(--orange-deep)}
.hero .start{min-height:76px;padding:0 40px;font-size:22px;border-radius:24px}
.start-sub{font-size:13px;color:var(--ink-soft);margin-top:10px;text-align:center}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.stat{background:var(--paper);border-radius:20px;padding:18px 20px;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat .num{font-size:30px;font-weight:800;line-height:1.1}
.stat .lbl{font-size:13px;color:var(--ink-soft);margin-top:6px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);margin-bottom:20px}
.card h3{font-size:18px;display:flex;align-items:center;gap:9px;margin-bottom:6px}
.card .desc{font-size:13px;color:var(--ink-soft);line-height:1.7;margin-bottom:16px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.list{display:flex;flex-direction:column;gap:10px}
.row{
  display:flex;align-items:center;gap:12px;padding:12px 14px;
  background:#fdfaf5;border:1px solid var(--line);border-radius:16px;font-size:15px
}
.row .grow{flex:1;min-width:0}
.row .emoji{font-size:26px;flex:none}
.row .title{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .meta{font-size:12px;color:var(--ink-soft);margin-top:3px}
.empty{padding:22px;text-align:center;color:var(--ink-soft);font-size:14px;background:#fdfaf5;border-radius:16px;border:1px dashed var(--line)}
.badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  width:62px;height:62px;border-radius:18px;background:#fdfaf5;border:2px solid var(--line);
  display:grid;place-items:center;font-size:30px;position:relative
}
.badge.got{background:linear-gradient(150deg,#fff3d8,#ffe4b5);border-color:var(--yellow);box-shadow:0 3px 10px rgba(240,180,70,.25)}
.badge.locked{filter:grayscale(1);opacity:.32}
.badge .cap{position:absolute;bottom:-18px;font-size:10px;color:var(--ink-soft);white-space:nowrap}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin:0 0 6px 4px;font-weight:600}
.checks{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.checks label{display:inline-flex;align-items:center;gap:7px;background:#fdfaf5;border:2px solid var(--line);border-radius:14px;padding:9px 13px;font-size:14px;cursor:pointer;min-height:48px}
.checks input{width:20px;height:20px;min-height:0;accent-color:var(--green)}
.practice-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.practice-item:last-child{border-bottom:none}
.practice-item input{width:26px;height:26px;min-height:0;flex:none;margin-top:4px;accent-color:var(--green)}
.practice-item .ptext{font-weight:700;font-size:15px;line-height:1.5}
.practice-item .phint{font-size:12px;color:var(--ink-soft);margin-top:4px}
.practice-item.done .ptext{text-decoration:line-through;color:var(--ink-soft)}
.streak{background:var(--green-soft);border-radius:14px;padding:10px 14px;font-size:14px;color:#3d7c57;font-weight:700}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);flex-wrap:wrap}
.setting-row:last-child{border-bottom:none}
.setting-row .label{font-weight:700;font-size:15px}
.setting-row .hint{font-size:12px;color:var(--ink-soft);margin-top:3px}
.setting-row input[type=range]{width:200px;min-height:0;accent-color:var(--orange);border:none;padding:0}
.switch{width:64px;height:36px;border-radius:999px;background:#ded6ca;position:relative;transition:background .2s;flex:none}
.switch.on{background:var(--green)}
.switch::after{content:"";position:absolute;top:4px;left:4px;width:28px;height:28px;border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 2px 5px rgba(0,0,0,.15)}
.switch.on::after{transform:translateX(28px)}
.notice{background:#fff8e8;border:2px solid #f5e3b8;border-radius:16px;padding:14px 16px;font-size:13px;line-height:1.8;color:#7a6337}
.level-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.level-tile{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:16px;border:2px solid var(--line);background:#fdfaf5;min-height:64px;text-align:left}
.level-tile.done{border-color:#ffdca6;background:#fff6e6}
.level-tile .e{font-size:26px}
.level-tile .t{font-size:14px;font-weight:700}
.level-tile .m{font-size:11px;color:var(--ink-soft);margin-top:2px}
.sight-grid{display:flex;flex-wrap:wrap;gap:8px}
.sight-chip{min-width:58px;text-align:center;padding:9px 12px;border-radius:12px;background:#f7f4ee;border:2px solid var(--line);font-size:15px;font-weight:700;color:#8d857c}
.sight-chip.on{background:var(--green-soft);border-color:#a9dcc0;color:#3d7c57}

/* ---------------- 弹层 ---------------- */
#overlay:empty{display:none}
#overlay{position:fixed;inset:0;z-index:12000;background:rgba(50,42,35,.45);display:grid;place-items:center;padding:20px;backdrop-filter:blur(3px)}
.modal{background:#fff;border-radius:28px;padding:28px;max-width:460px;width:100%;box-shadow:0 24px 60px rgba(0,0,0,.22);text-align:center}
.modal h3{font-size:22px;margin-bottom:10px}
.modal p{font-size:15px;color:var(--ink-soft);line-height:1.7;margin-bottom:20px}
.modal .nums{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.num-btn{width:82px;height:76px;border-radius:20px;background:var(--blue-soft);border:2px solid #cddcfb;font-size:26px;font-weight:800;color:#3c68c0}
.num-btn:active{transform:translateY(2px)}
.num-btn.wrong{animation:shake .4s}
.math-q{font-size:34px;font-weight:800;letter-spacing:2px;margin:10px 0 22px;color:var(--ink)}
#toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);z-index:13000;background:#38322d;color:#fff;padding:12px 22px;border-radius:999px;font-size:15px;opacity:0;pointer-events:none;transition:all .25s}
#toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------------- 儿童模式（全屏覆盖） ---------------- */
.kid{
  position:fixed;inset:0;z-index:9000;overflow:hidden;
  background:linear-gradient(170deg,#eaf5ff 0%,#f7f2ff 45%,#fff3e0 100%);
  display:flex;flex-direction:column;
  -webkit-user-select:none;user-select:none;touch-action:manipulation;
}
.kid::before,.kid::after{content:"";position:absolute;border-radius:50%;pointer-events:none;opacity:.5}
.kid::before{width:420px;height:420px;background:#ffe6b8;top:-170px;right:-120px}
.kid::after{width:360px;height:360px;background:#d8e8ff;bottom:-190px;left:-120px}
.kid-top{
  position:relative;z-index:2;display:flex;align-items:center;gap:16px;
  padding:18px 30px;flex:none;min-height:76px
}
.kid-progress{flex:1;height:16px;border-radius:999px;background:rgba(255,255,255,.75);overflow:hidden;box-shadow:inset 0 1px 3px rgba(0,0,0,.06)}
.kid-progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#ffc46b,#f2994a);transition:width .4s}
.kid-time{font-size:15px;font-weight:800;color:#8b7c68;min-width:62px;text-align:right}
.exit-dot{
  position:relative;width:60px;height:60px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-size:17px;color:rgba(120,105,90,.28);
  background:rgba(255,255,255,.35);touch-action:none
}
.exit-dot .ring{position:absolute;inset:0;border-radius:50%;border:4px solid transparent;transition:border-color .2s}
.exit-dot.holding{background:rgba(255,255,255,.8)}
.exit-dot.holding .ring{border-color:var(--orange);animation:ringpulse 3s linear forwards}
@keyframes ringpulse{from{transform:scale(.85);opacity:.4}to{transform:scale(1.12);opacity:1}}
.kid-body{position:relative;z-index:1;flex:1;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4px 28px 26px;overflow:hidden}
.kid-inner{width:100%;max-width:1000px;text-align:center;animation:fadein .3s ease}
@keyframes fadein{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.kid-hint{font-size:19px;font-weight:800;color:#6b6258;margin-bottom:14px;letter-spacing:.5px}
.kid-hint svg{width:24px;height:24px;vertical-align:-5px;margin-right:4px}
.kid-english{font-size:clamp(26px,3.6vw,42px);font-weight:800;color:#3a3632;letter-spacing:.5px;line-height:1.45}
.kid-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:24px}

/* 故事页 */
.story-scene{
  position:relative;width:min(100%,620px);height:clamp(180px,32vh,300px);margin:0 auto 16px;
  border-radius:36px;background:linear-gradient(180deg,#dbeeff,#fef6e4 78%);
  box-shadow:0 12px 30px rgba(110,140,180,.16);overflow:hidden;
  display:grid;place-items:center
}
.story-scene .hill{position:absolute;bottom:-70px;width:130%;height:150px;border-radius:50% 50% 0 0;background:#cfe9b8;opacity:.85}
.story-scene .cloud{position:absolute;font-size:34px;opacity:.7;animation:float 5s ease-in-out infinite}
.story-scene .cloud.c1{top:16%;left:12%}
.story-scene .cloud.c2{top:28%;right:14%;animation-delay:1.4s;font-size:26px}
.story-scene .deco{position:absolute;font-size:30px;opacity:.55}
.story-scene .d1{bottom:12%;left:12%}
.story-scene .d2{bottom:16%;right:13%}
.story-main{position:relative;font-size:clamp(90px,15vh,150px);line-height:1;filter:drop-shadow(0 10px 12px rgba(0,0,0,.12));animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-12px) rotate(2deg)}}
@keyframes float{0%,100%{transform:translateX(0)}50%{transform:translateX(14px)}}
.story-pages{display:flex;gap:8px;justify-content:center;margin-top:14px}
.story-pages i{width:12px;height:12px;border-radius:50%;background:#dcd2c2}
.story-pages i.on{background:var(--orange);transform:scale(1.25)}

/* 任务选项 */
.options{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:10px}
.option-card{
  width:clamp(140px,20vw,190px);min-height:clamp(140px,20vw,190px);
  border-radius:30px;background:#fff;border:4px solid #fff;
  box-shadow:0 10px 24px rgba(110,120,150,.15);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  transition:transform .14s,box-shadow .14s,border-color .14s
}
.option-card .e{font-size:clamp(64px,9vw,96px);line-height:1}
.option-card .w{font-size:17px;font-weight:800;color:#7b7268;letter-spacing:.5px}
.option-card:active{transform:scale(.96)}
.option-card.correct{border-color:var(--green);box-shadow:0 0 0 8px rgba(102,185,138,.2);animation:pop .4s}
.option-card.wrong{animation:shake .4s}
.option-card.dim{opacity:.42}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-9px)}40%{transform:translateX(9px)}60%{transform:translateX(-6px)}80%{transform:translateX(6px)}}
@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.1)}100%{transform:scale(1)}}

/* 拖拽补句 */
.sentence-line{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;
  background:#fff;border-radius:26px;padding:20px 24px;box-shadow:var(--shadow);
  margin:8px auto 22px;max-width:900px;min-height:92px
}
.sentence-line .tok{font-size:clamp(22px,3vw,34px);font-weight:800;color:#3a3632}
.drop-zone{
  min-width:150px;min-height:70px;border-radius:18px;border:4px dashed #f3b96f;background:#fff8ec;
  display:grid;place-items:center;font-size:clamp(20px,2.6vw,30px);font-weight:800;color:#c58b45;
  transition:background .15s,border-color .15s,transform .15s
}
.drop-zone.filled{border-style:solid;border-color:var(--green);background:var(--green-soft);color:#3d7c57}
.drop-zone.correct{border-style:solid;border-color:var(--green);background:var(--green-soft);color:#3d7c57;box-shadow:0 0 0 8px rgba(102,185,138,.2);animation:pop .4s}
.drop-zone.wrong{animation:shake .4s}
.drop-zone.hover{background:#ffedcd;transform:scale(1.05)}
.word-blocks{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.word-block{
  min-width:130px;min-height:82px;border-radius:22px;background:#fff;border:3px solid #dbe6ff;
  box-shadow:0 7px 18px rgba(90,120,190,.14);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-weight:800;font-size:20px;color:#3d4c6b;touch-action:none;cursor:grab;transition:transform .12s
}
.word-block .e{font-size:32px;line-height:1}
.word-block.selected{border-color:var(--orange);background:#fff3e2;transform:scale(1.05)}
.word-block.used{opacity:.25;pointer-events:none}
.drag-ghost{
  position:fixed;z-index:15000;pointer-events:none;transform:translate(-50%,-50%) scale(1.08);
  min-width:130px;min-height:82px;border-radius:22px;background:#fff;border:3px solid var(--orange);
  box-shadow:0 14px 30px rgba(0,0,0,.2);display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:20px
}
.drag-ghost .e{font-size:32px}

/* 跟读 */
.mic-wrap{display:flex;flex-direction:column;align-items:center;gap:18px;margin-top:10px}
.mic-btn{
  width:150px;height:150px;border-radius:50%;background:linear-gradient(150deg,#ffb9c4,#ef8f9c);
  color:#fff;font-size:64px;display:grid;place-items:center;box-shadow:0 14px 30px rgba(230,130,150,.35)
}
.mic-btn.rec{animation:micpulse 1.2s ease-in-out infinite;background:linear-gradient(150deg,#ff9a9a,#e56565)}
@keyframes micpulse{0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(230,110,110,.4)}50%{transform:scale(1.06);box-shadow:0 0 0 22px rgba(230,110,110,0)}}
.repeat-sentence{background:#fff;border-radius:26px;padding:20px 30px;box-shadow:var(--shadow);font-size:clamp(24px,3.4vw,38px);font-weight:800;margin-bottom:6px}
.hear-note{color:#3d7c57;font-weight:800;font-size:17px;min-height:26px}

/* 句子词块 / 排序 */
.chip-line{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;background:#fff;padding:22px;border-radius:26px;box-shadow:var(--shadow);max-width:920px;margin:0 auto}
.word-chip{
  min-height:66px;padding:0 20px;border-radius:16px;background:#f4f7ff;border:3px solid transparent;
  font-size:clamp(20px,2.6vw,30px);font-weight:800;color:#3a3632;transition:transform .12s
}
.word-chip:active{transform:scale(.95)}
.word-chip.correct{background:var(--green-soft);border-color:var(--green);animation:pop .4s}
.word-chip.wrong{animation:shake .4s}
.order-slots{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;min-height:80px;margin-bottom:18px}
.order-slot{min-width:110px;min-height:74px;border-radius:16px;border:3px dashed #d9c9ae;background:#fffaf0;display:grid;place-items:center;font-size:22px;font-weight:800;color:#a08a68}
.order-slot.filled{border-style:solid;border-color:var(--blue);background:var(--blue-soft);color:#3c68c0}

/* 结算 / 结束 */
.settle-badge{font-size:clamp(90px,14vh,140px);animation:bob 2.6s ease-in-out infinite;filter:drop-shadow(0 12px 14px rgba(0,0,0,.12))}
.settle-title{font-size:clamp(26px,4vw,40px);font-weight:800;margin:6px 0 8px}
.settle-sub{font-size:17px;color:var(--ink-soft);margin-bottom:20px}
.confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.confetti i{position:absolute;top:-30px;font-size:24px;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(540deg);opacity:.1}}
.kid-btn{
  min-height:72px;padding:0 32px;border-radius:24px;font-size:21px;font-weight:800;
  background:#fff;border:3px solid var(--line);box-shadow:0 6px 0 rgba(0,0,0,.06);transition:transform .12s
}
.kid-btn:active{transform:translateY(4px);box-shadow:none}
.kid-btn.primary{background:var(--orange);color:#fff;border-color:var(--orange-deep)}
.kid-btn.blue{background:var(--blue);color:#fff;border-color:#4274d6}
.speak-btn{
  min-height:72px;min-width:72px;border-radius:50%;background:#fff;border:3px solid #ffdca6;
  font-size:30px;box-shadow:0 6px 16px rgba(240,170,80,.2)
}
.speak-btn:active{transform:scale(.94)}
.speak-btn.playing{animation:pop .6s infinite}

/* 家长验证层（儿童模式内） */
.gate-mask{position:fixed;inset:0;z-index:11000;background:rgba(48,42,36,.55);display:grid;place-items:center;padding:20px;backdrop-filter:blur(4px)}
.gate-box{background:#fff;border-radius:30px;padding:30px 34px;max-width:440px;width:100%;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.24)}
.gate-box .lock{font-size:42px}
.gate-box h3{font-size:21px;margin:8px 0 4px}
.gate-box p{font-size:14px;color:var(--ink-soft);margin-bottom:12px}

/* 响应式 */
@media (max-width:860px){
  .grid2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .browser-note{margin-left:0;max-width:none}
  .parent-shell{padding:20px 16px 70px}
  .form-grid{grid-template-columns:1fr}
  .kid-top{padding:12px 16px;min-height:66px}
  .kid-body{padding:2px 14px 18px}
  .options{gap:12px}
  .option-card{width:clamp(110px,28vw,160px);min-height:clamp(110px,28vw,160px);border-radius:24px}
  .kid-english{font-size:clamp(22px,5vw,32px)}
}
@media (max-height:560px){
  .story-scene{height:150px}
  .story-main{font-size:76px}
  .kid-top{min-height:56px;padding:8px 20px}
  .option-card{width:120px;min-height:120px}
  .option-card .e{font-size:56px}
}