:root{
  /* —— 糖果色系（禁用深蓝紫） —— */
  --bg1:#ffe9f3; --bg2:#fff4e6; --bg3:#e7f6ff;
  --card:#ffffff;
  --pink:#ff7eb3; --pink-d:#ff5e9a;
  --orange:#ffa552; --orange-d:#ff8a3d;
  --yellow:#ffc94b; --mint:#5fd0a8; --mint-d:#34c98a;
  --sky:#7ec8ff;
  --text:#4a3b34; --muted:#a98f80; --line:#ffe0ec;
  --shadow:0 10px 28px rgba(255,126,179,.18);
  --shadow-bl:0 8px 22px rgba(126,200,255,.18);
  /* —— 兼容旧类名别名 —— */
  --primary:var(--pink); --primary-d:var(--pink-d);
  --green:var(--mint); --green-d:var(--mint-d);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0}
body{
  font-family:"PingFang SC","Baloo 2","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(120% 80% at 10% -10%, var(--bg1) 0%, transparent 55%),
    radial-gradient(120% 80% at 110% 0%, var(--bg3) 0%, transparent 55%),
    linear-gradient(160deg,#fff4ec,#fff9f2 60%,#eef9ff);
  background-attachment:fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
#app{max-width:480px;margin:0 auto;padding:14px 14px 96px}
h1,h2,h3{margin:0}
.center{text-align:center}
.muted{color:var(--muted);font-size:13px}
.sub{font-size:13px;color:var(--muted);margin-top:2px}
hr{border:none;border-top:1px dashed var(--line);margin:12px 0}

/* —— 卡片 —— */
.card{background:var(--card);border-radius:26px;box-shadow:var(--shadow);padding:18px;margin-bottom:14px;
  border:1px solid rgba(255,255,255,.6)}
.card.center{text-align:center}

/* —— 顶栏 —— */
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:8px}
.topbar .title{font-size:22px;font-weight:900;color:var(--pink-d);
  background:linear-gradient(90deg,var(--pink),var(--orange));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* —— 按钮 —— */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;
  background:linear-gradient(180deg,var(--pink),var(--pink-d));color:#fff;font-weight:800;font-size:16px;
  padding:13px 18px;border-radius:18px;box-shadow:0 6px 0 var(--pink-d);transition:.08s;width:100%}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 var(--pink-d)}
.btn.green{background:linear-gradient(180deg,var(--mint),var(--mint-d));box-shadow:0 6px 0 var(--mint-d)}
.btn.green:active{box-shadow:0 2px 0 var(--mint-d)}
.btn.orange{background:linear-gradient(180deg,var(--orange),var(--orange-d));box-shadow:0 6px 0 var(--orange-d)}
.btn.orange:active{box-shadow:0 2px 0 var(--orange-d)}
.btn.ghost{background:#fff;color:var(--pink-d);border:2px solid var(--line);box-shadow:0 5px 0 var(--line)}
.btn.ghost:active{box-shadow:0 2px 0 var(--line)}
.btn.sm{width:auto;padding:9px 14px;font-size:14px;border-radius:14px}
.btn.big{font-size:18px;padding:16px}

/* —— 欢迎 hero —— */
.hero{text-align:center;padding:30px 14px 10px}
.hero-emoji{font-size:64px;filter:drop-shadow(0 8px 10px rgba(255,126,179,.3));animation:wave 2.6s ease-in-out infinite}
@keyframes wave{0%,100%{transform:rotate(-7deg) translateY(0)}50%{transform:rotate(9deg) translateY(-6px)}}
.hero h1{font-size:27px;font-weight:900;line-height:1.2;margin:8px 0 10px;
  background:linear-gradient(90deg,var(--pink-d),var(--orange-d));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{color:var(--muted);font-size:14px;margin:0;line-height:1.5}

/* —— 娃头像/仪表盘 —— */
.avatar{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:38px;background:radial-gradient(circle at 30% 30%,#fff,#ffe3ef);margin:0 auto;
  box-shadow:0 6px 16px rgba(255,126,179,.25)}
.avatar-wrap{position:relative}
.avatar-wrap::after{content:"⭐";position:absolute;right:-2px;bottom:-2px;font-size:22px}
.stat{display:flex;gap:10px;margin-top:14px}
.stat .box{flex:1;background:linear-gradient(180deg,#fff,#fff6fa);border:2px solid var(--line);
  border-radius:18px;padding:12px 6px;text-align:center}
.stat .num{font-size:23px;font-weight:900;color:var(--pink-d)}
.stat .lbl{font-size:12px;color:var(--muted);margin-top:2px}
.coin-pop{display:inline-block;animation:coinpop .5s cubic-bezier(.2,1.5,.4,1)}
@keyframes coinpop{0%{transform:scale(.4);opacity:0}60%{transform:scale(1.25)}100%{transform:scale(1)}}

/* —— 段位卡 —— */
.lvl-card{display:flex;align-items:center;gap:12px;background:linear-gradient(180deg,#fff,#fffafc);
  border:2px solid var(--line);border-radius:18px;padding:12px 14px;margin-bottom:14px;box-shadow:0 4px 0 rgba(255,224,236,.4)}
.lvl-ic{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;flex:0 0 auto;box-shadow:0 3px 8px rgba(0,0,0,.12)}
.lvl-info{flex:1;min-width:0}
.lvl-name{font-weight:900;font-size:15px;color:var(--text)}
.lvl-bar{height:10px;background:#f0ece9;border-radius:10px;overflow:hidden;margin:5px 0 3px}
.lvl-fill{height:100%;border-radius:10px;transition:width .6s cubic-bezier(.2,1.5,.4,1)}
.lvl-tip{font-size:12px;color:var(--muted);font-weight:700}

/* —— 成就徽章墙 —— */
.bw-title{font-weight:900;font-size:15px;margin-bottom:10px;color:var(--primary-d)}
.badge-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.badge-item{display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 4px;border-radius:14px;
  background:#f3f1ef;opacity:.45;transition:.15s}
.badge-item.got{background:linear-gradient(180deg,#fff,#fff4fb);opacity:1;box-shadow:0 3px 0 rgba(255,224,236,.6);border:1.5px solid var(--line)}
.badge-item .bi{font-size:24px;filter:grayscale(.2)}
.badge-item .bn{font-size:10px;font-weight:800;color:var(--muted);text-align:center;line-height:1.1}
.badge-item.got .bn{color:var(--pink-d)}

/* —— PK 榜段位小标 —— */
.lvl-chip{font-size:14px;vertical-align:middle}

/* —— 错题本 —— */
.wrong-item{margin-bottom:16px}
.wtip{font-size:12px;color:var(--muted);margin-top:7px;font-weight:700;background:#fff7e0;padding:6px 10px;border-radius:10px;display:inline-block}

/* —— 模块按钮 —— */
.module{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:18px;
  background:linear-gradient(180deg,#fff,#fffafc);border:2px solid var(--line);margin-bottom:11px;cursor:pointer;
  box-shadow:0 4px 0 rgba(255,224,236,.5);transition:.1s}
.module:active{transform:translateY(2px);box-shadow:0 2px 0 rgba(255,224,236,.5)}
.module .mi{display:flex;align-items:center;gap:12px;font-weight:800;font-size:16px}
.module .ic{font-size:26px;width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,#fff0f6,#ffe0ec)}
.badge{font-size:12px;font-weight:900;padding:4px 11px;border-radius:20px;white-space:nowrap}
.badge.ok{background:#e1f8ef;color:var(--mint-d)}
.badge.no{background:#fff0e0;color:var(--orange-d)}

/* —— 答题 —— */
.q{background:linear-gradient(180deg,#fff,#fffafc);border:2px solid var(--line);border-radius:18px;padding:14px;margin-bottom:13px;
  box-shadow:0 4px 0 rgba(255,224,236,.4)}
.q .qt{font-weight:800;margin-bottom:10px;line-height:1.5;font-size:15px}
.q .qn{color:var(--pink-d);margin-right:6px}
.opt{display:block;width:100%;text-align:left;padding:12px 14px;margin:7px 0;border-radius:14px;
  border:2px solid var(--line);background:#fff;cursor:pointer;font-size:15px;font-weight:600;transition:.08s}
.opt:active{transform:scale(.99)}
.opt.sel{border-color:var(--pink);background:#fff0f6;font-weight:800}
.opt.correct{border-color:var(--mint);background:#e1f8ef}
.opt.wrong{border-color:#ff8a8a;background:#ffe9e9}
.inp{width:100%;padding:12px 14px;border-radius:14px;border:2px solid var(--line);font-size:16px;margin:7px 0;font-weight:600}
input[type=number]{width:100%;padding:12px 14px;border-radius:14px;border:2px solid var(--line);font-size:16px}
.field{margin-bottom:13px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px;font-weight:800}
.field input,.field textarea{width:100%;padding:11px;border-radius:12px;border:2px solid var(--line);font-size:15px}

/* —— PK 榜 —— */
.pk-row{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:20px;background:var(--card);
  box-shadow:var(--shadow);margin-bottom:11px;position:relative;overflow:hidden}
.pk-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--pink),var(--orange))}
.pk-row.me{outline:3px solid var(--yellow);background:linear-gradient(180deg,#fffdf2,#fff7e0)}
.pk-row .rk{font-size:22px;font-weight:900;width:34px;text-align:center}
.pk-row .nm{font-weight:900;flex:1;font-size:16px}
.pk-row .cn{font-weight:900;color:var(--pink-d);font-size:17px}
.me-tag{background:var(--yellow);color:#5a4413;font-size:11px;font-weight:900;padding:2px 8px;border-radius:20px;margin-left:5px}
.tag{font-size:12px;color:var(--muted)}

/* —— 专属链接卡片 —— */
.kidlink{display:flex;flex-direction:column;gap:8px;padding:14px;margin-bottom:12px;
  background:linear-gradient(180deg,#fff,#fff7fb);border:2px solid var(--line);border-radius:18px}
.kl-head{display:flex;align-items:center;gap:8px;font-size:16px}
.kl-emoji{font-size:26px}
.linkbox{display:flex;gap:8px}
.linkbox input{flex:1;font-size:12px;background:#fff;border:2px solid var(--line);border-radius:12px;padding:9px;color:var(--text)}
.kidlink .qr{width:160px;height:160px;align-self:center;border-radius:14px;background:#fff;padding:6px;box-shadow:var(--shadow)}

/* —— 底部导航 —— */
.tabbar{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:480px;
  display:flex;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  box-shadow:0 -4px 18px rgba(255,126,179,.15);border-top:1px solid var(--line);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));z-index:40}
.tabbar a{flex:1;text-align:center;text-decoration:none;color:var(--muted);font-size:11px;font-weight:800;
  display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0;border-radius:14px}
.tabbar a .ti{font-size:24px;filter:grayscale(.3)}
.tabbar a.active{color:var(--pink-d);background:#fff0f6}
.tabbar a.active .ti{filter:none;transform:translateY(-1px)}

/* —— 弹层/通用 —— */
.row{display:flex;gap:10px;align-items:center}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--text);color:#fff;
  padding:11px 20px;border-radius:30px;font-weight:800;z-index:99;opacity:0;transition:.3s;font-size:14px}
.toast.show{opacity:1}
.confetti{position:fixed;top:-20px;font-size:22px;z-index:80;animation:fall 1.6s linear forwards;pointer-events:none}
@keyframes fall{to{transform:translateY(110vh) rotate(360deg);opacity:.2}}

/* —— 总览台 —— */
.ov-card{background:var(--card);border-radius:22px;box-shadow:var(--shadow);padding:14px;margin-bottom:12px;border:2px solid var(--line)}
.ov-card.me{outline:3px solid var(--yellow);background:linear-gradient(180deg,#fffdf2,#fff7e0)}
.ov-head{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:900}
.ov-rk{font-size:20px;width:26px;text-align:center}
.ov-emoji{font-size:26px}
.ov-stat{font-size:13px;color:var(--muted);margin:7px 0 9px;font-weight:800}
.ov-prog{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-size:15px;width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:#f3f1ef;opacity:.4;transition:.15s}
.chip.on{background:#e1f8ef;opacity:1;box-shadow:0 2px 0 rgba(52,201,138,.25)}

/* —— 左右结构：手机=左侧图标导航栏 + 内容；宽屏=完整侧边栏 + 内容 —— */
.layout{display:flex;align-items:flex-start;gap:0;max-width:1040px;margin:0 auto}

/* 手机端默认：左侧图标 + 文字导航栏 */
#sidebar{display:flex;flex-direction:column;flex:0 0 118px;width:118px;
  position:fixed;top:0;bottom:0;left:0;z-index:50;align-items:center;gap:2px;
  background:var(--card);border-right:1px solid var(--line);
  padding:10px 6px;overflow-y:auto}
#app{max-width:none;flex:1;margin:0 0 0 118px;padding:14px 12px 32px}
.tabbar{display:none}
.sb-brand{display:flex;flex-direction:column;align-items:center;gap:0;padding:2px 0 8px;
  border-bottom:1px solid var(--line);width:100%}
.sb-brand-txt{display:block;font-size:13px;font-weight:900;margin-top:2px;
  background:linear-gradient(90deg,var(--pink),var(--orange));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sb-logo{font-size:24px}
.sb-group{width:100%;margin-top:2px}
.sb-title{display:none}
.sb-item{display:flex;justify-content:flex-start;align-items:center;gap:8px;width:100%;padding:11px 10px;
  border-radius:14px;color:var(--text);text-decoration:none;font-weight:800;font-size:13px;margin-bottom:4px;white-space:nowrap;overflow:hidden}
.sb-item .sb-ic{font-size:20px;width:24px;text-align:center}
.sb-item .sb-label{display:inline}
.sb-item:active{transform:scale(.96)}
.sb-item.active{background:#fff0f6;color:var(--pink-d)}

@media(min-width:760px){
  #app{max-width:none;flex:1;margin:0;padding:18px 0 30px}
  #sidebar{display:flex;flex-direction:column;flex:0 0 220px;width:220px;align-self:flex-start;
    position:sticky;top:14px;background:var(--card);border-radius:24px;box-shadow:var(--shadow);
    padding:14px;margin:14px 14px 14px 0;max-height:calc(100vh - 28px);overflow:auto}
  .tabbar{display:none}
  .sb-brand{flex-direction:row;justify-content:center;gap:6px;padding:6px 0 12px;border-bottom:none}
  .sb-brand-txt{font-size:20px;font-weight:900;
    background:linear-gradient(90deg,var(--pink),var(--orange));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
  .sb-logo{font-size:20px}
  .sb-group{margin-top:6px}
  .sb-title{display:block;font-size:12px;font-weight:800;color:var(--muted);padding:10px 10px 2px}
  .sb-item{justify-content:flex-start;padding:11px 12px;font-size:15px}
  .sb-item .sb-ic{font-size:20px;width:26px;text-align:center}
  .sb-item .sb-label{display:inline}
  .sb-item:active{transform:scale(.98)}
  .sb-item.active{background:linear-gradient(180deg,#fff0f6,#ffe0ec);color:var(--pink-d);box-shadow:0 3px 0 var(--line)}
  .sb-item:hover{background:#fff6fa}
}

/* —— 英语点读台（内嵌 iframe） —— */
.reader-wrap{position:relative;width:100%;height:calc(100vh - 100px);min-height:440px;
  border-radius:20px;overflow:hidden;background:var(--card);
  border:1px solid var(--line);box-shadow:var(--shadow)}
.reader-wrap iframe{width:100%;height:100%;border:0;display:block}
body.reader-mode #app{padding-bottom:14px}
@media(min-width:760px){ .reader-wrap{height:calc(100vh - 92px);min-height:640px} }