@font-face{
  font-family:"MaimemoPhonetic";
  src:url("/fonts/phonetic.ttf") format("truetype");
  font-display:swap;
}
:root{
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --ink:#1E2421;
  --sub:#8B948F;
  --line:#ECEEE9;
  --brand:#3E6B58;
  --brand-2:#5E9B7E;
  --brand-soft:#E9F2ED;
  --know:#4E9E77;
  --uncertain:#D2A44E;
  --forget:#C46A5F;
  --shadow:0 6px 24px rgba(31,48,40,.07);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",system-ui,-apple-system,sans-serif;}
body{display:flex;justify-content:center;min-height:100vh}
#app{width:100%;max-width:468px;min-height:100vh;position:relative;padding-bottom:64px;background:var(--bg);overflow-x:hidden}
@media (min-width:520px){#app{box-shadow:0 0 0 1px var(--line),0 10px 60px rgba(0,0,0,.06);min-height:100vh}}

.page{display:none;padding:20px 18px 24px;animation:fade .18s ease}
.page.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* ---------- 首页 ---------- */
.home-head{display:flex;align-items:flex-start;justify-content:space-between;margin:6px 0 18px}
.greet{margin:0;color:var(--sub);font-size:13px;letter-spacing:.5px}
.date{margin:4px 0 0;font-size:22px;font-weight:600;letter-spacing:.3px}
.streak{background:var(--brand-soft);border-radius:14px;padding:8px 14px;text-align:center;color:var(--brand)}
.streak b{display:block;font-size:20px;line-height:1.1}
.streak span{font-size:11px;opacity:.8}

.hero-card{background:linear-gradient(160deg,#FFFFFF 0%,#F2F7F4 100%);border-radius:22px;padding:20px;box-shadow:var(--shadow);border:1px solid #EDF1EE}
.hero-row{display:flex;justify-content:space-between;margin-bottom:18px}
.metric{text-align:center;flex:1}
.metric b{display:block;font-size:26px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums}
.metric span{font-size:12px;color:var(--sub)}
.hero-sub{margin:10px 0 0;font-size:12px;color:var(--sub);text-align:center}

button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
.primary{width:100%;background:var(--brand);color:#fff;border-radius:14px;padding:13px;font-size:16px;font-weight:600;letter-spacing:1px;transition:.15s}
.primary:hover{background:#35594a}
.primary.big{padding:15px;font-size:17px;border-radius:16px}
.primary:disabled{background:#C9D3CD;cursor:not-allowed}
.ghost{border:1px solid var(--line);border-radius:12px;padding:10px 14px;color:var(--brand);background:#fff;font-size:14px}

.panel{background:var(--card);border-radius:18px;padding:16px;margin-top:14px;box-shadow:var(--shadow);border:1px solid var(--line)}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.panel-head h3{margin:0;font-size:14px;font-weight:600;color:#33403A}
.panel-head span{font-size:12px;color:var(--sub)}
.bars{display:grid;gap:10px}
.bar-row{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--sub)}
.bar-row>span{width:28px}
.bar{flex:1;height:8px;background:#EFF2EF;border-radius:6px;overflow:hidden}
.bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand-2),var(--brand));border-radius:6px;transition:width .3s}
.bar-row em{font-style:normal;width:56px;text-align:right;color:#4A574F;font-variant-numeric:tabular-nums}
.dist{display:flex;align-items:flex-end;gap:3px;height:86px}
.dist .col{flex:1 1 0;min-width:0;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px}
.dist .col i{display:block;width:100%;background:linear-gradient(180deg,#8CC0A7,#4E8B6F);border-radius:5px 5px 2px 2px;min-height:2px}
.dist .col span{font-size:9px;color:var(--sub)}
.forecast{display:flex;align-items:flex-end;gap:3px;height:72px}
.forecast .fc{flex:1 1 0;min-width:0;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:3px}
.forecast .fc i{width:100%;background:#D9E7DF;border-radius:4px 4px 2px 2px;min-height:2px}
.forecast .fc span{font-size:7px;color:var(--sub);white-space:nowrap;transform:scale(.92)}

/* ---------- 学习页 ---------- */
#page-study{padding-top:12px;padding-bottom:20px;min-height:calc(100vh - 64px);display:none;flex-direction:column}
#page-study.active{display:flex}
.topbar{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.icon-btn{width:36px;height:36px;border-radius:12px;font-size:20px;color:#59665F;background:#fff;border:1px solid var(--line)}
.progress-wrap{flex:1;display:flex;align-items:center;gap:9px}
.progress-bar{flex:1;height:6px;background:#E8ECE8;border-radius:6px;overflow:hidden}
.progress-bar>i{display:block;height:100%;width:0;background:var(--brand);transition:width .25s}
#progressText{font-size:11px;color:var(--sub);font-variant-numeric:tabular-nums;min-width:52px;text-align:right}

.card-stage{flex:1;display:flex;align-items:center;justify-content:center;padding:10px 0}
.word-card{width:100%;min-height:360px;background:var(--card);border-radius:24px;padding:20px;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column;cursor:pointer;transition:.2s}
.card-top{display:flex;justify-content:space-between;align-items:center}
.pill{font-size:11px;padding:3px 10px;border-radius:20px;background:var(--brand-soft);color:var(--brand)}
.pill.new{background:#FDF3DE;color:#A87A2A}
.strength{font-size:11px;color:var(--sub)}
.word-main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:14px 0}
#wordSpelling{margin:0;font-family:Georgia,"Times New Roman",serif;font-size:50px;font-weight:500;letter-spacing:1px;text-align:center;word-break:break-word;line-height:1.15}
.phonetic-row{display:flex;align-items:center;gap:8px;color:var(--sub)}
.phonetic{font-family:"MaimemoPhonetic","Lucida Sans Unicode",Arial,sans-serif;font-size:15px;letter-spacing:.4px}
.speak{border-radius:50%;width:30px;height:30px;background:var(--brand-soft);font-size:14px}
.answer{opacity:0;transform:translateY(6px);transition:.22s;border-top:1px dashed var(--line);padding-top:14px;pointer-events:none}
.word-card.revealed .answer{opacity:1;transform:none;pointer-events:auto}
.pos{font-size:12px;color:var(--brand-2);margin-bottom:6px;letter-spacing:.4px}
.trans{font-size:16px;line-height:1.65;white-space:pre-wrap;max-height:200px;overflow:auto}
.exchange{font-size:11px;color:var(--sub);margin-top:8px;white-space:pre-wrap}
.hint{text-align:center;font-size:11px;color:#B3BBB6;margin-top:6px}
.word-card.revealed .hint{display:none}

.actions{display:flex;gap:10px;padding:8px 0 4px}
.act{flex:1;border-radius:16px;padding:12px 6px;display:flex;flex-direction:column;align-items:center;gap:2px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:.15s}
.act b{font-size:15px;font-weight:600}
.act small{font-size:10px;color:var(--sub)}
.act.forget b{color:var(--forget)} .act.uncertain b{color:var(--uncertain)} .act.know b{color:var(--know)}
.act:active{transform:scale(.97)}
.act:hover{border-color:#DCE4DF}

.done-panel{display:none;flex-direction:column;align-items:center;justify-content:center;gap:8px;flex:1;text-align:center}
.done-panel.show{display:flex}
.done-emoji{font-size:44px}
.done-panel h2{margin:0;font-size:20px}
.done-panel p{color:var(--sub);font-size:13px;margin:0 0 10px}

/* ---------- 词库 / 统计 / 设置 ---------- */
.simple-head{margin:8px 0 14px}
.simple-head h2{margin:0;font-size:20px;font-weight:600}
.searchbar input{width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:14px;outline:none}
.searchbar input:focus{border-color:#CBDCD3}
.chips{display:flex;gap:8px;overflow:auto;padding:12px 0 4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{white-space:nowrap;font-size:12px;padding:7px 13px;border-radius:20px;background:#fff;border:1px solid var(--line);color:#5A675F}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.chip em{font-style:normal;opacity:.6;margin-left:4px;font-size:11px}
.book-list{display:grid;gap:10px;margin-top:12px}
.book{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:10px;cursor:pointer}
.book h4{margin:0 0 3px;font-size:14px;font-weight:600}
.book p{margin:0;font-size:11px;color:var(--sub)}
.book .cnt{font-size:12px;color:var(--brand);white-space:nowrap}
.book.cur{border-color:var(--brand);background:var(--brand-soft)}

.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.calendar i{aspect-ratio:1;border-radius:6px;background:#F0F2EF}
.calendar i.l1{background:#CFE3D8}.calendar i.l2{background:#A9CDB8}.calendar i.l3{background:#6FA98B}.calendar i.l4{background:var(--brand)}
.calendar-labels{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:5px}
.calendar-labels span{font-size:9px;color:var(--sub);text-align:center}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat-grid div{background:var(--brand-soft);border-radius:12px;padding:12px;text-align:center}
.stat-grid b{display:block;font-size:19px;color:var(--brand)}
.stat-grid span{font-size:11px;color:#6C7A72}
.set-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.set-row:last-child{border-bottom:0}
.set-row input,.set-row select{padding:8px 10px;border-radius:10px;border:1px solid var(--line);font-size:14px;background:#fff;width:110px;text-align:right;outline:none}
.muted{font-size:12px;color:var(--sub);line-height:1.7;margin:0 0 12px}

.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:468px;display:flex;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:6px 0 calc(6px + env(safe-area-inset-bottom))}
.tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;color:#9AA49E;padding:4px}
.tabbar button span{font-size:17px;filter:grayscale(1);opacity:.6}
.tabbar button.active{color:var(--brand)}
.tabbar button.active span{filter:none;opacity:1}

/* 学习页全屏：隐藏底部导航 */
body.studying .tabbar{display:none}
body.studying #app{padding-bottom:0}
/* ---------- ���� ---------- */
.examples{margin-top:12px;border-top:1px dashed var(--line);padding-top:10px;display:none}
.examples.has{display:block}
.examples h5{margin:0 0 6px;font-size:11px;color:var(--brand-2);font-weight:600;letter-spacing:.5px}
.example{display:flex;gap:8px;align-items:flex-start;margin-bottom:8px}
.example p{margin:0;font-size:13px;line-height:1.55;color:#3C4741}
.example b{color:var(--brand);font-weight:600}
.example button{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--brand-soft);font-size:11px;color:var(--brand)}
.examples .loading{font-size:12px;color:var(--sub)}

/* ---------- ���� ---------- */
@keyframes cardIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.035)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
@keyframes nudge{0%{transform:scale(1)}50%{transform:scale(.94)}100%{transform:scale(1)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.word-card{animation:cardIn .22s ease}
.word-card.pop{animation:pop .3s ease}
.word-card.shake{animation:shake .32s ease}
.answer.revealed-anim{animation:fadeUp .2s ease}
.act:active{animation:nudge .12s ease}
.chip.active,.book.cur{animation:fadeUp .18s ease}
body.no-anim *,body.no-anim *::before,body.no-anim *::after{animation:none!important;transition:none!important}

/* ������Ӣ���� */
.example{align-items:flex-start}
.ex-body{flex:1;min-width:0}
.example p.en{margin:0;font-size:13.5px;line-height:1.55;color:#3C4741}
.example p.zh{margin:3px 0 0;font-size:12.5px;line-height:1.5;color:#8B948F}
.example b{color:var(--brand);font-weight:600}