/* ============================================================
   幼小衔接 · 入学准备小课堂 —— 样式
   ============================================================ */
:root{
  --bg:#FFF6E9; --card:#FFFFFF; --ink:#4A3B32; --ink-soft:#8C7A6D;
  --line:#F0E2CF;
  --pink:#FF6B6B; --blue:#4D96FF; --green:#2ECC71; --orange:#FF9F1C; --purple:#9B5DE5;
  --radius:22px;
  --shadow:0 10px 24px rgba(150,110,70,.12);
  --shadow-sm:0 4px 12px rgba(150,110,70,.10);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink); background:#BFD9FF;
  min-height:100dvh;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}

/* 页面背景装饰 */
.bg-deco{position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,.9) 0 60px, transparent 61px),
    radial-gradient(circle at 88% 12%, rgba(255,255,255,.85) 0 46px, transparent 47px),
    radial-gradient(circle at 6% 78%, rgba(255,255,255,.7) 0 70px, transparent 71px),
    radial-gradient(circle at 92% 70%, rgba(255,255,255,.75) 0 54px, transparent 55px),
    linear-gradient(180deg,#BFD9FF,#A8CCFF);
}

.app{
  position:relative;z-index:1;
  max-width:520px;margin:0 auto;min-height:100dvh;
  background:var(--bg);
  box-shadow:0 0 40px rgba(60,90,150,.18);
}

/* ---------------- 通用 ---------------- */
.screen{display:none;padding:18px 18px 34px;animation:fadeIn .25s ease}
.screen.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.icon-btn{
  width:46px;height:46px;border-radius:16px;background:#fff;font-size:24px;
  box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;
  flex:none;transition:transform .12s;
}
.icon-btn:active{transform:scale(.92)}
.icon-btn.back{font-size:34px;line-height:1;color:var(--ink-soft)}

.spacer{width:46px;flex:none}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  background:linear-gradient(135deg,#FFB75E,#ED8F03);color:#fff;
  border-radius:18px;padding:14px 22px;font-size:17px;font-weight:800;
  box-shadow:0 8px 18px rgba(237,143,3,.35);transition:transform .12s;
}
.btn-primary:active{transform:scale(.96)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  background:#fff;color:var(--ink-soft);border:2px solid var(--line);
  border-radius:18px;padding:13px 20px;font-size:16px;font-weight:700;
}
.btn-ghost.danger{color:#e74c3c}
.wide{width:100%;margin-top:10px}

/* ---------------- 首页头部 ---------------- */
.home-head{display:flex;align-items:center;gap:12px;padding:8px 2px 14px}
.avatar{
  width:58px;height:58px;border-radius:50%;background:#fff;font-size:34px;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);
  border:3px solid #FFE3B3;flex:none;
}
.home-greet{flex:1;min-width:0}
.hello{margin:0;font-size:22px;font-weight:900}
.sub{margin:3px 0 0;font-size:13px;color:var(--ink-soft)}

/* 进度卡 */
.progress-card{
  background:linear-gradient(135deg,#FFF3D6,#FFE6C0);
  border-radius:var(--radius);padding:14px 14px 12px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.stat{display:flex;align-items:center;gap:8px;background:#fff;border-radius:16px;padding:8px 12px;flex:1;min-width:110px}
.stat-emoji{font-size:26px}
.stat b{display:block;font-size:20px;line-height:1.1}
.stat small{color:var(--ink-soft);font-size:11px}
.tree-box{width:100%;display:flex;align-items:center;gap:10px;padding:4px 6px 0}
.tree-emoji{font-size:24px;width:30px;text-align:center}
.tree-bar{flex:1;height:12px;background:#fff;border-radius:99px;overflow:hidden}
.tree-fill{height:100%;width:0%;border-radius:99px;
  background:linear-gradient(90deg,#7CE495,#2ECC71);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.tree-box small{color:#A5762B;font-size:11px;white-space:nowrap}

.sec-title{font-size:18px;margin:20px 4px 12px;font-weight:900}

/* 模块宫格 */
.mod-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mod-card{
  border-radius:var(--radius);padding:16px 14px;color:#fff;text-align:left;
  box-shadow:var(--shadow);min-height:132px;display:flex;flex-direction:column;justify-content:space-between;
  transition:transform .12s;position:relative;overflow:hidden;
}
.mod-card:active{transform:scale(.96)}
.mod-card .mc-emoji{font-size:38px;line-height:1;filter:drop-shadow(0 3px 4px rgba(0,0,0,.15))}
.mod-card .mc-title{font-size:19px;font-weight:900;margin-top:8px}
.mod-card .mc-desc{font-size:12px;opacity:.92;margin-top:2px}
.mod-card .mc-star{margin-top:8px;font-size:12px;font-weight:700;background:rgba(255,255,255,.22);
  border-radius:99px;padding:3px 10px;display:inline-block;width:max-content}
.mod-card .go{position:absolute;right:12px;top:14px;font-size:20px;opacity:.8}
.card-pinyin{background:linear-gradient(135deg,#FF9A8B,#FF5F6D)}
.card-math{background:linear-gradient(135deg,#56B4FF,#3D7BFD)}
.card-hanzi{background:linear-gradient(135deg,#43D97F,#1FAE57)}
.card-life{background:linear-gradient(135deg,#FFC371,#FF9F1C)}
.card-challenge{background:linear-gradient(135deg,#B388FF,#7C4DFF)}
.mod-card.challenge-wide{grid-column:1 / -1;min-height:96px;flex-direction:row;align-items:center;gap:14px}
.mod-card.challenge-wide .mc-text{flex:1}

/* 底部附加入口 */
.extra-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.extra-card{
  background:#fff;border-radius:18px;padding:12px;box-shadow:var(--shadow-sm);
  display:flex;align-items:center;gap:10px;text-align:left;transition:transform .12s;
}
.extra-card:active{transform:scale(.96)}
.extra-card>span{font-size:30px}
.extra-card b{display:block;font-size:15px}
.extra-card small{color:var(--ink-soft);font-size:11px}

/* ---------------- 页面头部 ---------------- */
.page-head{display:flex;align-items:center;gap:10px;padding:6px 2px 14px}
.page-title-wrap{flex:1;min-width:0}
.page-title-wrap b{font-size:20px;font-weight:900;display:block}
.page-title-wrap small{font-size:12px;color:var(--ink-soft)}
.star-chip{background:#fff;border-radius:99px;padding:6px 14px;font-size:15px;
  box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:5px;font-weight:800;flex:none}

/* 标签页 */
.tab-bar{display:flex;gap:8px;margin-bottom:16px}
.tab-btn{
  flex:1;background:#fff;border-radius:16px;padding:11px;font-size:16px;font-weight:800;
  color:var(--ink-soft);box-shadow:var(--shadow-sm);transition:all .15s;
}
.tab-btn.active{color:#fff;background:var(--accent,#FF6B6B)}

.page-body{animation:fadeIn .25s ease}

/* ---------------- 学习内容 ---------------- */
.sub-title{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:900;margin:16px 2px 10px}
.sub-title:first-child{margin-top:2px}
.learn-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.learn-card{
  background:#fff;border-radius:18px;box-shadow:var(--shadow-sm);padding:10px 6px 8px;
  display:flex;flex-direction:column;align-items:center;gap:2px;transition:transform .12s;
  border:2px solid transparent;
}
.learn-card:active{transform:scale(.94)}
.learn-card .lc-emoji{font-size:30px;line-height:1.2}
.learn-card .lc-letter{font-size:22px;font-weight:900;color:var(--accent,#FF6B6B)}
.learn-card .lc-word{font-size:13px;font-weight:700}
.learn-card .lc-pin{font-size:11px;color:var(--ink-soft)}
.num-card .lc-letter{color:var(--blue)}
.num-card .lc-word{font-size:14px}

.tones-row{display:flex;gap:4px;margin-top:3px}
.tones-row span{background:#FFF1F1;color:var(--pink);font-size:11px;border-radius:6px;padding:2px 4px;font-weight:700}

/* ---------------- 答题区 ---------------- */
.quiz-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.q-progress{flex:1;height:10px;background:#F0E2CF;border-radius:99px;overflow:hidden}
.q-progress-fill{height:100%;background:var(--accent,#FF6B6B);border-radius:99px;transition:width .3s}
.q-count{font-size:13px;color:var(--ink-soft);font-weight:700;white-space:nowrap}

.q-card{
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);
  padding:20px 16px;text-align:center;margin-bottom:16px;
}
.q-emoji{font-size:52px;line-height:1.15;min-height:60px}
.q-text{font-size:20px;font-weight:900;margin:6px 0 0;line-height:1.45}
.q-sub{font-size:14px;color:var(--ink-soft);margin:6px 0 0}
.speak-btn{
  margin-top:10px;background:#FFF4D6;color:#B07D00;border-radius:99px;
  padding:8px 16px;font-size:15px;font-weight:800;box-shadow:var(--shadow-sm);
  display:inline-flex;align-items:center;gap:6px;transition:transform .12s;
}
.speak-btn:active{transform:scale(.94)}

.math-line{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;font-size:24px;font-weight:900;margin-top:4px}
.emoji-row{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;font-size:30px;line-height:1.3}
.emoji-row .dim{opacity:.22}

.opts-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.opt-btn{
  background:#fff;border:3px solid var(--line);border-radius:20px;padding:14px 8px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  box-shadow:var(--shadow-sm);min-height:96px;transition:transform .12s,border-color .2s,background .2s;
  position:relative;
}
.opt-btn:active{transform:scale(.95)}
.opt-btn .ob-emoji{font-size:38px;line-height:1.1}
.opt-btn .ob-main{font-size:30px;font-weight:900;line-height:1.1}
.opt-btn .ob-sub{font-size:14px;font-weight:700;color:var(--ink-soft)}
.opt-btn.letter-opt .ob-main{font-size:34px}
.opt-btn.life-opt{align-items:flex-start;text-align:left;min-height:auto;padding:14px 14px}
.opt-btn.life-opt .ob-main{font-size:17px;line-height:1.4;font-weight:800}
.opt-btn .ob-idx{
  position:absolute;left:10px;top:10px;width:24px;height:24px;border-radius:50%;
  background:#FFF0E0;color:#C77B1B;font-size:12px;font-weight:900;
  display:flex;align-items:center;justify-content:center;
}
.opt-btn.correct{border-color:#2ECC71;background:#E9FBEF;animation:pop .35s}
.opt-btn.wrong{border-color:#FF6B6B;background:#FFEEEE;animation:shake .4s}
.opt-btn:disabled{cursor:default}
.opt-btn:disabled:not(.correct):not(.wrong){opacity:.55}
@keyframes pop{0%{transform:scale(.9)}60%{transform:scale(1.05)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

.fb{
  margin-top:14px;border-radius:18px;padding:13px 16px;font-size:15px;font-weight:700;
  display:flex;align-items:center;gap:10px;animation:fadeIn .25s;line-height:1.5;
}
.fb.good{background:#E9FBEF;color:#1E8E4E}
.fb.bad{background:#FFF1E6;color:#C96A1B}
.fb .fb-emoji{font-size:26px;flex:none}
.fb .fb-next{margin-left:auto;background:#fff;border-radius:12px;padding:8px 16px;font-weight:900;
  box-shadow:var(--shadow-sm);flex:none}
.fb .fb-next:active{transform:scale(.94)}

/* 空提示 */
.hint-box{background:#FFF4D6;border-radius:18px;padding:16px;font-size:15px;color:#8a6d1f;line-height:1.7;font-weight:600}

/* ---------------- 弹层 ---------------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(70,45,25,.45);z-index:50;
  display:flex;align-items:center;justify-content:center;padding:24px;
  animation:fadeIn .2s;
}
.modal{
  background:#fff;border-radius:24px;padding:22px;width:100%;max-width:400px;
  box-shadow:0 20px 60px rgba(0,0,0,.25);max-height:88dvh;overflow:auto;
  animation:rise .25s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes rise{from{transform:translateY(30px) scale(.96);opacity:0}to{transform:none;opacity:1}}
.modal h3{margin:0 0 14px;font-size:22px;text-align:center}
.field-label{display:block;font-size:13px;color:var(--ink-soft);margin:4px 2px 6px;font-weight:700}
.modal input[type=text]{
  width:100%;border:2px solid var(--line);border-radius:14px;padding:12px 14px;font-size:17px;
  margin-bottom:14px;outline:none;background:#FFFBF4;
}
.modal input[type=text]:focus{border-color:#FFB75E}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px 2px;font-size:16px;font-weight:700}
.toggle-row input{display:none}
.toggle-row i{
  width:52px;height:30px;border-radius:99px;background:#E3D5C2;position:relative;transition:background .2s;
}
.toggle-row i::after{
  content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;
  transition:left .2s;box-shadow:0 2px 5px rgba(0,0,0,.2);
}
.toggle-row input:checked + i{background:#2ECC71}
.toggle-row input:checked + i::after{left:25px}

.result-modal{text-align:center}
.result-emoji{font-size:72px;line-height:1.1;animation:bounce .8s}
@keyframes bounce{0%{transform:scale(0)}55%{transform:scale(1.25)}100%{transform:scale(1)}}
.stars-row{display:flex;justify-content:center;gap:8px;margin:6px 0 12px;min-height:52px}
.star-item{font-size:44px;animation:starIn .5s backwards}
.star-item.off{filter:grayscale(1);opacity:.3}
@keyframes starIn{from{transform:scale(0) rotate(-30deg)}to{transform:scale(1) rotate(0)}}

/* 彩带 */
.fx-layer{position:fixed;inset:0;pointer-events:none;z-index:60;overflow:hidden}
.confetti{position:absolute;top:-16px;width:12px;height:16px;border-radius:3px;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(108vh) rotate(720deg);opacity:.8}}

/* ---------------- 家长手册 ---------------- */
.parent-hero{
  background:linear-gradient(135deg,#7FBCFF,#4D96FF);color:#fff;border-radius:var(--radius);
  padding:18px 18px 20px;box-shadow:var(--shadow);margin-bottom:16px;
}
.parent-hero .ph-emoji{font-size:44px}
.parent-hero h2{margin:6px 0 4px;font-size:20px}
.parent-hero p{margin:0;font-size:13px;opacity:.95;line-height:1.7}
.parent-section{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px;margin-bottom:14px}
.ps-head{display:flex;align-items:center;gap:10px;margin-bottom:4px}
.ps-head .ps-icon{font-size:30px}
.ps-head b{font-size:17px}
.ps-tip{font-size:12px;color:#6E9AFF;background:#EEF5FF;border-radius:10px;padding:6px 10px;margin:8px 0;line-height:1.6}
.check-item{display:flex;align-items:flex-start;gap:10px;padding:8px 2px;font-size:14px;line-height:1.5;cursor:pointer;font-weight:600}
.check-item .box{
  width:24px;height:24px;border-radius:8px;border:2.5px solid #D9C9B3;background:#fff;flex:none;
  margin-top:1px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;
  transition:all .15s;
}
.check-item.on .box{background:#2ECC71;border-color:#2ECC71}
.check-item.on{color:#7A9A6A}
.tip-list{display:grid;gap:10px;margin-top:4px}
.tip-card{background:#FFF9ED;border:2px solid #FFE3B3;border-radius:16px;padding:12px 14px}
.tip-card b{font-size:15px;display:block;margin-bottom:4px;color:#B07D00}
.tip-card span{font-size:13px;line-height:1.65;color:#7a6a55}

/* ---------------- 成长手册 ---------------- */
.grow-hero{background:linear-gradient(135deg,#7CE495,#2ECC71);color:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:16px;display:flex;align-items:center;gap:14px}
.grow-hero .gh-emoji{font-size:54px}
.grow-hero b{font-size:22px}
.grow-hero p{margin:2px 0 0;font-size:13px;opacity:.95}
.grow-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px;margin-bottom:12px}
.grow-row{display:flex;align-items:center;gap:12px;margin:10px 0}
.grow-row .gr-emoji{font-size:26px;width:36px;text-align:center}
.grow-row .gr-info{flex:1}
.grow-row .gr-name{font-size:15px;font-weight:800}
.grow-row .gr-bar{height:10px;background:#F0E2CF;border-radius:99px;overflow:hidden;margin-top:5px}
.grow-row .gr-fill{height:100%;background:var(--gr-c,#FF6B6B);border-radius:99px;transition:width .5s}
.grow-row .gr-num{font-size:13px;color:var(--ink-soft);font-weight:700;white-space:nowrap}
.grow-note{background:#FFF4D6;border-radius:16px;padding:12px 14px;font-size:13px;color:#8a6d1f;line-height:1.7}

/* 响应式微调 */
@media (min-width:560px){
  .app{border-radius:0;min-height:100dvh}
}
@media (max-width:360px){
  .learn-grid{grid-template-columns:repeat(3,1fr)}
  .mod-card{min-height:118px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* 补充样式 */
.opts-grid.single{grid-template-columns:1fr}
.q-tag{display:inline-block;background:#F1E8FF;color:#7C4DFF;font-size:12px;font-weight:800;border-radius:99px;padding:3px 10px;margin-bottom:10px}
.math-line .op{color:#C9A227;font-weight:900;font-size:26px}
.fb small{display:block;margin-top:2px}
.gm-card{box-shadow:var(--shadow);}

/* ---------------- 今日任务 ---------------- */
.plan-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;margin-top:14px}
.plan-head{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.plan-head b{font-size:16px;font-weight:900}
.plan-badge{margin-left:auto;background:#FFF4D6;color:#B07D00;border-radius:99px;padding:3px 10px;font-size:12px;font-weight:800}
.plan-row{display:flex;align-items:center;gap:10px;padding:9px 4px;border-radius:14px;font-size:15px;font-weight:700;transition:background .12s}
.plan-row:active{background:#FFF4D6}
.plan-row .pr-emoji{font-size:22px;width:26px;text-align:center}
.plan-row .pr-label{flex:1}
.plan-row .pr-check{width:26px;height:26px;border-radius:50%;border:2.5px solid #D9C9B3;flex:none;display:flex;align-items:center;justify-content:center;color:transparent;font-size:14px;font-weight:900;transition:all .15s}
.plan-row.done{color:#7A9A6A}
.plan-row.done .pr-check{background:#2ECC71;border-color:#2ECC71;color:#fff}

/* ---------------- 笔顺演示 ---------------- */
.stroke-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:10px}
.stroke-card{background:#fff;border-radius:18px;box-shadow:var(--shadow-sm);padding:10px 4px;display:flex;flex-direction:column;align-items:center;gap:2px;border:2px solid transparent;transition:transform .12s}
.stroke-card:active{transform:scale(.94)}
.stroke-card .sc-char{font-size:32px;font-weight:900;color:#2E7D4F;line-height:1.1}
.stroke-card .sc-hint{font-size:11px;color:var(--ink-soft)}
.stroke-stage{background:#FFF7EC;border:2px dashed #F0D9B8;border-radius:20px;padding:10px;margin:4px 0 10px;display:flex;justify-content:center}
#stroke-svg{width:210px;height:210px}
#stroke-svg path{fill:none;stroke:#4A3B32;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:0;opacity:0}
.stroke-info{font-size:14px;color:var(--ink-soft);font-weight:700;text-align:center;min-height:22px;margin-bottom:4px}
.stroke-modal{text-align:center}
.stroke-modal h3{margin-bottom:6px}

/* 音色选择 */
.voice-select{width:100%;border:2px solid var(--line);border-radius:14px;padding:12px 14px;font-size:16px;background:#FFFBF4;color:var(--ink);margin-bottom:14px;outline:none;font-weight:700}