:root{
  --bg:#fff7ef; --card:#ffffff; --ink:#33312e; --sub:#8a857d;
  --brand:#2f9e8f; --brand2:#f4a259; --soft:#eef6f4;
  --pink:#f4c0d1; --shadow:0 2px 8px rgba(0,0,0,.06);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;padding-bottom:74px;}
a{text-decoration:none;color:inherit}

.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;
  align-items:center;padding:12px 16px;background:#fff;border-bottom:1px solid #f0e6da;}
.logo{font-size:17px;font-weight:700}
.stars{font-size:15px;color:var(--brand2);font-weight:700}

.screen{display:none;padding:16px;max-width:720px;margin:0 auto;}
.screen.active{display:block}

.hero{text-align:center;padding:18px 0 8px;}
.hero-emoji{font-size:46px}
.hero h1{font-size:20px;margin:6px 0 2px}
.hero-sub{color:var(--sub);font-size:13px;margin:0}

.today-card{background:var(--card);border-radius:18px;padding:16px;box-shadow:var(--shadow);margin-top:10px;}
.today-title{font-weight:700;font-size:15px;margin-bottom:8px}
.today-list{list-style:none;padding:0;margin:0 0 10px}
.today-list li{display:flex;align-items:center;gap:8px;padding:7px 0;border-bottom:1px dashed #eee;font-size:14px}
.today-list .tk-emoji{font-size:20px}
.today-list .tk-done{color:var(--brand);font-weight:700;margin-left:auto}
.big-btn{width:100%;border:none;background:var(--brand);color:#fff;font-size:16px;
  font-weight:700;padding:13px;border-radius:14px;cursor:pointer;box-shadow:var(--shadow)}
.big-btn:active{transform:scale(.98)}
.today-hint{text-align:center;color:var(--sub);font-size:12px;margin-top:8px}

.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.quick{background:var(--card);border-radius:16px;padding:16px 8px;text-align:center;
  box-shadow:var(--shadow);font-size:22px}
.quick span{display:block;font-size:13px;margin-top:4px;color:var(--ink)}

.screen-title{font-size:18px;margin:4px 0 12px}
.screen-sub{color:var(--sub);font-size:13px;margin:0 0 12px}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.chip{background:#fff;border:1px solid #eee;padding:6px 12px;border-radius:20px;
  font-size:13px;cursor:pointer}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

.word-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.wcard{background:#fff;border-radius:16px;padding:14px;text-align:center;box-shadow:var(--shadow);
  cursor:pointer;position:relative}
.wcard .w-emoji{font-size:34px}
.wcard .w-en{font-size:17px;font-weight:700;margin-top:2px}
.wcard .w-zh{font-size:13px;color:var(--sub)}
.wcard .w-speak{position:absolute;top:8px;right:8px;background:var(--soft);border:none;
  border-radius:50%;width:32px;height:32px;font-size:15px;cursor:pointer}

.mode-row{display:flex;gap:10px;margin:14px 0}
.mini-btn{background:#fff;border:1px solid #e3dccf;padding:9px 14px;border-radius:12px;
  font-size:14px;cursor:pointer;color:var(--ink)}
.mini-btn:active{transform:scale(.97)}

.big-card{background:#fff;border-radius:20px;padding:24px;text-align:center;box-shadow:var(--shadow);margin-top:8px}
.big-emoji{font-size:72px}
.big-en{font-size:28px;font-weight:800;margin-top:4px}
.big-zh{font-size:16px;color:var(--sub)}
.speak-btn{background:var(--brand);color:#fff;border:none;border-radius:50%;width:56px;height:56px;
  font-size:24px;cursor:pointer;margin-top:14px;box-shadow:var(--shadow)}
.speak-btn:active{transform:scale(.95)}
.big-nav,.book-nav{display:flex;justify-content:center;gap:10px;margin-top:12px;align-items:center}

.song-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.song-item{display:flex;align-items:center;gap:10px;background:#fff;border-radius:12px;padding:10px 12px;box-shadow:var(--shadow)}
.song-item .s-emoji{font-size:24px}
.song-item .s-en{font-weight:600;font-size:15px}
.song-item .s-zh{color:var(--sub);font-size:12px}
.song-item button{margin-left:auto;background:var(--soft);border:none;border-radius:50%;width:38px;height:38px;font-size:16px;cursor:pointer}

.game-pick{display:flex;flex-direction:column;gap:10px}
.game-btn{background:#fff;border:1px solid #e3dccf;border-radius:14px;padding:14px;font-size:16px;cursor:pointer;text-align:left;box-shadow:var(--shadow)}
.game-btn:active{transform:scale(.98)}
.game-area{margin-top:14px}
.gpick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.gpick{background:#fff;border-radius:16px;padding:18px;text-align:center;font-size:40px;cursor:pointer;box-shadow:var(--shadow)}
.gpick.correct{background:#d8f3e6}
.gpick.wrong{background:#fde2e2;animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.gprompt{text-align:center;font-size:15px;margin:6px 0 12px;color:var(--sub)}
.gbig{font-size:60px;text-align:center;margin:10px 0}
.game-score{text-align:center;font-size:15px;color:var(--brand);margin-top:12px;font-weight:700}

.book-list{display:flex;flex-direction:column;gap:10px}
.book-item{display:flex;align-items:center;gap:12px;background:#fff;border-radius:14px;padding:14px;box-shadow:var(--shadow);cursor:pointer}
.book-item .b-emoji{font-size:32px}
.book-item .b-title{font-weight:700;font-size:15px}
.book-reader{background:#fff;border-radius:18px;padding:22px;text-align:center;box-shadow:var(--shadow);margin-top:8px}
.book-page{font-size:80px}
.book-sentence{font-size:22px;font-weight:700;margin:8px 0}

.stat-row{display:flex;gap:10px;margin-bottom:16px}
.stat{flex:1;background:#fff;border-radius:16px;padding:14px;text-align:center;box-shadow:var(--shadow)}
.stat-num{font-size:26px;font-weight:800;color:var(--brand)}
.stat-label{font-size:12px;color:var(--sub)}
.me-sub{font-size:15px;margin:8px 0}
.week-check{display:flex;gap:6px;justify-content:space-between;margin-bottom:12px}
.wday{flex:1;background:#fff;border-radius:10px;padding:10px 2px;text-align:center;font-size:12px;box-shadow:var(--shadow)}
.wday.done{background:var(--brand);color:#fff}
.wday .wd-star{display:block;font-size:18px;margin-top:2px}

.hidden{display:none!important}

.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;justify-content:space-around;
  background:#fff;border-top:1px solid #f0e6da;padding:6px 0;}
.tab{flex:1;text-align:center;font-size:20px;color:var(--sub);padding:4px 0}
.tab span{display:block;font-size:11px}
.tab.active{color:var(--brand)}

/* 单词弹窗 */
.word-modal{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:18px}
.word-modal-box{position:relative;width:100%;max-width:420px;background:#fff;border-radius:22px;padding:28px 20px 24px;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.25);max-height:86vh;overflow-y:auto}
.word-modal-close{position:absolute;top:10px;right:12px;border:none;background:#f3ece2;color:#a08a6f;font-size:18px;width:34px;height:34px;border-radius:50%;cursor:pointer}
.wm-emoji{font-size:84px;line-height:1}
.wm-en{font-size:34px;font-weight:800;color:var(--brand);margin-top:6px;letter-spacing:.5px}
.wm-zh{font-size:20px;color:var(--sub);margin-top:2px}
.wm-hint{font-size:14px;color:#b09a7d;margin:14px 0 6px}
.wm-sentences{margin-top:8px;display:flex;flex-direction:column;gap:10px}
.wm-sentence{display:flex;align-items:center;gap:10px;background:#fff7ee;border:1px solid #f0e2cf;border-radius:14px;padding:12px 14px;text-align:left;cursor:pointer;transition:transform .08s}
.wm-sentence:active{transform:scale(.98)}
.wm-s-zh{font-size:16px;color:#5b4636;flex:1}
.wm-s-en{font-size:15px;font-weight:700;color:var(--brand);flex:1}
.wm-s-speak{border:none;background:var(--brand);color:#fff;font-size:18px;width:42px;height:42px;border-radius:50%;cursor:pointer;flex-shrink:0}