:root{
  --bg:#0e1015; --bg2:#151821; --card:#1b1f2a; --card2:#222736;
  --line:#2b3140; --txt:#e8ecf4; --dim:#8b93a7; --faint:#5b6377;
  --cyan:#1fb9a6; --cyan-bg:rgba(31,185,166,.16);
  --orange:#e89535; --orange-bg:rgba(232,149,53,.16);
  --gold:#f0c14b; --purple:#a78bfa; --red:#e05263;
  --shadow:0 8px 28px rgba(0,0,0,.38);
  --board-gap:5px;
}
html[data-theme="light"]{
  --bg:#f4f5f8; --bg2:#ffffff; --card:#ffffff; --card2:#eef0f5;
  --line:#dfe3ec; --txt:#1c2130; --dim:#6b7385; --faint:#9aa2b2;
  --cyan:#0e9b88; --cyan-bg:rgba(14,155,136,.13);
  --orange:#d97b12; --orange-bg:rgba(217,123,18,.13);
  --shadow:0 8px 24px rgba(30,40,70,.12);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  font-size:14px;line-height:1.5;overscroll-behavior:none;
}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.hidden{display:none!important}
#app{max-width:480px;margin:0 auto;min-height:100%;position:relative;padding-bottom:calc(150px + env(safe-area-inset-bottom))}

/* 顶栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;
  background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--cyan),#0d7c8f);color:#fff;font-weight:700;font-size:19px;
  font-family:"Songti SC","Noto Serif CJK SC",serif;box-shadow:0 3px 12px rgba(31,185,166,.3)}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt b{font-size:16px;letter-spacing:2px;font-family:"Songti SC","Noto Serif CJK SC",serif}
.brand-txt small{color:var(--dim);font-size:11px}
.top-actions{display:flex;gap:8px}
.icon-btn{width:32px;height:32px;border-radius:9px;background:var(--card);border:1px solid var(--line);color:var(--dim);font-size:15px}

/* 视图 */
.view{display:none;padding:14px 16px 8px;animation:fade .22s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.section-title{margin:4px 0 14px}
.section-title h2{margin:0;font-size:20px;letter-spacing:1px;font-family:"Songti SC","Noto Serif CJK SC",serif}
.section-title p{margin:3px 0 0;color:var(--dim);font-size:12px}
.section-title.sub{margin:22px 0 10px}
.section-title.sub h3{font-size:14px;margin:0;color:var(--dim);font-weight:600}

/* 游戏 */
.game-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.hero-chip{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);
  padding:5px 10px 5px 5px;border-radius:20px;font-size:12px;color:var(--dim)}
.hero-avatar{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12px;
  background:linear-gradient(140deg,var(--purple),var(--gold));color:#1a1206;font-weight:700}
.tries-chip{display:flex;align-items:baseline;gap:4px;color:var(--dim);font-size:11px}
.tries-chip span{font-size:20px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums}

.board{display:flex;flex-direction:column;gap:var(--board-gap)}
.brow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--board-gap)}
.cell{background:var(--card);border:1px solid var(--line);border-radius:7px;height:var(--cell-h,54px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;
  transition:background .18s,border-color .18s,transform .18s;overflow:hidden}
.cell.current{border-color:var(--faint);background:var(--card2)}
.cell.filled .hanzi{color:var(--txt)}
.cell.none .hanzi{color:var(--faint);opacity:.62}
.cell.pop{animation:pop .28s ease}
@keyframes pop{0%{transform:scale(.9);opacity:.3}70%{transform:scale(1.03)}100%{transform:scale(1)}}
.hanzi{font-size:var(--hz-size,25px);font-family:"Songti SC","Noto Serif CJK SC",serif;line-height:1.06;color:var(--faint)}
.py{display:flex;align-items:center;justify-content:center;gap:1px;margin-top:3px;font-size:var(--py-size,10px);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.25;white-space:nowrap}
.py span{padding:0 2px;border-radius:3px;min-width:9px;text-align:center;color:var(--dim)}
.st-exact{background:var(--cyan-bg)!important;color:var(--cyan)!important}
.st-misplaced{background:var(--orange-bg)!important;color:var(--orange)!important}
.st-none{opacity:.42}
.cell.exact{background:var(--cyan-bg);border-color:var(--cyan)}
.cell.exact .hanzi{color:var(--cyan)}
.cell.misplaced{background:var(--orange-bg);border-color:var(--orange)}
.cell.misplaced .hanzi{color:var(--orange)}
.cell.cb-exact{background:rgba(31,185,166,.32);border-color:var(--cyan)}
.cell.cb-misplaced{background:rgba(232,149,53,.34);border-color:var(--orange)}
html[data-cb="1"] .cell.exact .hanzi::after{content:"✓";font-size:9px;position:absolute;top:2px;right:4px;color:var(--cyan)}
html[data-cb="1"] .cell.misplaced .hanzi::after{content:"~";font-size:10px;position:absolute;top:2px;right:4px;color:var(--orange)}

.hint-bar{margin-top:10px;padding:9px 12px;border-radius:9px;background:var(--card);border:1px dashed var(--gold);
  color:var(--gold);font-size:12px;text-align:center}
.cheatsheet{margin-top:10px;padding:10px 12px;border-radius:9px;background:var(--card);border:1px solid var(--line);font-size:12px;color:var(--dim)}
.cheatsheet b{color:var(--txt)}

/* 输入区 */
.input-dock{position:fixed;bottom:calc(58px + env(safe-area-inset-bottom));left:0;right:0;z-index:25;
  max-width:480px;margin:0 auto;background:linear-gradient(to top,var(--bg) 76%,transparent);padding:10px 16px 8px}
/* 候选区常驻固定高度：输入时不撑高输入区、不把末行棋盘顶掉 */
.candidates{display:flex;align-items:center;gap:6px;overflow-x:auto;padding:0 0 8px;
  scrollbar-width:none;min-height:34px;max-height:34px}
.candidates::-webkit-scrollbar{display:none}
.cand{flex:0 0 auto;padding:6px 11px;border-radius:8px;background:var(--card);border:1px solid var(--line);
  font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:14px;white-space:nowrap}
.cand:active{background:var(--card2)}
.input-row{display:flex;gap:7px}
#wordInput{flex:1;min-width:0;height:44px;border-radius:10px;background:var(--card);border:1px solid var(--line);
  padding:0 12px;font-size:16px;font-family:"Songti SC","Noto Serif CJK SC",serif;letter-spacing:3px;outline:none}
#wordInput:focus{border-color:var(--cyan)}
.primary-btn{width:62px;height:44px;border-radius:10px;background:var(--cyan);color:#08130f;font-weight:700;font-size:15px}
.primary-btn:disabled{opacity:.4}
.ghost-btn{width:42px;height:44px;border-radius:10px;background:var(--card);border:1px solid var(--line);color:var(--gold);font-size:13px}

/* 底部导航 */
.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:30;max-width:480px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg2);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom)}
.tab{height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--faint)}
.tab i{font-style:normal;font-size:17px;font-family:"Songti SC","Noto Serif CJK SC",serif;line-height:1}
.tab span{font-size:10px}
.tab.active{color:var(--cyan)}

/* 排行榜 */
.seg{display:flex;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:3px;margin-bottom:14px}
.seg-btn{flex:1;height:32px;border-radius:7px;color:var(--dim);font-size:13px}
.seg-btn.active{background:var(--cyan);color:#08130f;font-weight:700}
.podium{display:flex;align-items:flex-end;justify-content:center;gap:8px;margin-bottom:14px;min-height:112px}
.pod{background:var(--card);border:1px solid var(--line);border-radius:11px 11px 0 0;padding:10px 8px 8px;text-align:center;flex:1;max-width:130px}
.pod.p1{background:linear-gradient(180deg,rgba(240,193,75,.16),var(--card));border-color:rgba(240,193,75,.45)}
.pod .crown{font-size:15px;color:var(--gold)}
.pod .av{width:34px;height:34px;border-radius:50%;margin:4px auto;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--purple),var(--cyan));font-size:15px;font-weight:700;color:#10131a}
.pod .nm{font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pod .sc{font-size:11px;color:var(--dim)}
.pod .bar{height:5px;border-radius:3px;background:var(--cyan);margin-top:7px;opacity:.6}
.pod.p1 .bar{background:var(--gold);opacity:1;height:14px}
.rank-list{display:flex;flex-direction:column;gap:6px}
.rank-row{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:9px 11px}
.rank-num{width:24px;text-align:center;font-weight:700;color:var(--faint);font-variant-numeric:tabular-nums}
.rank-num.top{color:var(--gold)}
.rank-av{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:16px;
  background:var(--card2);flex:0 0 auto}
.rank-main{flex:1;min-width:0}
.rank-main b{font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-main small{color:var(--dim);font-size:11px}
.rank-score{text-align:right;font-variant-numeric:tabular-nums}
.rank-score b{color:var(--cyan);font-size:15px;display:block}
.rank-score small{color:var(--faint);font-size:10px}
.my-rank{margin-top:12px;padding:11px 12px;border-radius:10px;background:var(--cyan-bg);border:1px solid var(--cyan);
  font-size:12px;color:var(--dim)}
.my-rank b{color:var(--txt)}

/* 英雄 */
.hero-detail{border-radius:14px;padding:16px;margin-bottom:14px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(167,139,250,.18),rgba(240,193,75,.10)),var(--card);border:1px solid var(--line)}
.hero-detail::after{content:"";position:absolute;width:150px;height:150px;right:-50px;top:-60px;border-radius:50%;
  background:radial-gradient(circle,rgba(167,139,250,.25),transparent 70%)}
.hd-top{display:flex;gap:13px;align-items:center;position:relative;z-index:1}
.hd-av{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;font-size:28px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--purple),var(--gold));color:#1a1206;font-weight:700;
  font-family:"Songti SC",serif;box-shadow:0 6px 18px rgba(167,139,250,.3)}
.hd-name{font-size:19px;font-weight:700;font-family:"Songti SC","Noto Serif CJK SC",serif}
.hd-title{color:var(--gold);font-size:12px;margin-top:2px}
.hd-lv{margin-top:9px;display:flex;align-items:center;gap:8px;font-size:11px;color:var(--dim)}
.bar-out{flex:1;height:6px;border-radius:4px;background:var(--card2);overflow:hidden}
.bar-in{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--purple),var(--gold));transition:width .4s}
.hd-skills{margin-top:13px;display:flex;flex-wrap:wrap;gap:6px;position:relative;z-index:1}
.skill{padding:5px 9px;border-radius:7px;background:rgba(167,139,250,.14);border:1px solid rgba(167,139,250,.32);
  color:var(--purple);font-size:11px}
.hero-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.hero-card{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:10px 6px;text-align:center;position:relative}
.hero-card.sel{border-color:var(--gold);background:linear-gradient(180deg,rgba(240,193,75,.1),var(--card))}
.hero-card .hc-av{width:38px;height:38px;border-radius:11px;margin:0 auto 6px;display:grid;place-items:center;
  font-size:20px;font-family:"Songti SC",serif;background:var(--card2)}
.hero-card b{font-size:12px;display:block}
.hero-card small{font-size:10px;color:var(--dim);display:block;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hero-card.locked b,.hero-card.locked small{opacity:0}
.hero-card.locked .hc-av{opacity:.28}
.hero-card .lock{position:absolute;inset:0;background:rgba(10,12,18,.82);border-radius:11px;display:grid;place-items:center;
  color:var(--gold);font-size:11px;letter-spacing:1px}
.ai-btn{width:100%;height:42px;margin-top:14px;border-radius:10px;font-size:13px;font-weight:600;
  background:linear-gradient(100deg,var(--purple),#7c6cf0);color:#fff}
.ai-btn:disabled{opacity:.55}
.lore-box{margin-top:11px;padding:13px;border-radius:11px;background:var(--card);border:1px solid var(--line);
  font-size:13px;line-height:1.85;color:var(--dim);white-space:pre-wrap;font-family:"Songti SC",serif}
.lore-box b{color:var(--gold)}

/* 我的 */
.profile-card{background:linear-gradient(135deg,rgba(31,185,166,.13),var(--card));border:1px solid var(--line);
  border-radius:13px;padding:14px;display:flex;align-items:center;gap:12px}
.pc-av{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:22px;
  background:linear-gradient(140deg,var(--cyan),var(--purple));color:#0b1214;font-weight:700}
.pc-main b{font-size:16px}
.pc-main small{display:block;color:var(--dim);font-size:11px;margin-top:2px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:11px 6px;text-align:center}
.stat b{display:block;font-size:19px;color:var(--cyan);font-variant-numeric:tabular-nums}
.stat small{font-size:10px;color:var(--dim)}
.settings{background:var(--card);border:1px solid var(--line);border-radius:11px;overflow:hidden}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 13px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row>span{font-size:13px}
.row small{color:var(--faint);font-size:11px}
.row input[type=text]{background:var(--card2);border:1px solid var(--line);border-radius:7px;padding:5px 9px;width:150px;text-align:right;outline:none}
.row input[type=checkbox]{accent-color:var(--cyan);width:17px;height:17px}
.iterations{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:4px 12px}
.iter{padding:10px 0;border-bottom:1px solid var(--line);font-size:12px}
.iter:last-child{border-bottom:0}
.iter b{color:var(--purple);display:block;font-size:12px}
.iter p{margin:4px 0 0;color:var(--dim);line-height:1.65}
.iter time{color:var(--faint);font-size:10px}
.foot-note{text-align:center;color:var(--faint);font-size:10px;margin:20px 0 4px}

/* 弹层 / toast */
.modal{position:fixed;inset:0;z-index:60;background:rgba(4,6,10,.72);display:flex;align-items:center;justify-content:center;padding:22px;
  backdrop-filter:blur(4px)}
.modal-card{width:100%;max-width:390px;max-height:82vh;overflow:auto;background:var(--bg2);border:1px solid var(--line);
  border-radius:16px;padding:20px;box-shadow:var(--shadow);animation:pop .24s ease}
.modal-card h2{margin:0 0 8px;font-size:21px;font-family:"Songti SC",serif;text-align:center}
.modal-card .big{text-align:center;font-size:32px;letter-spacing:8px;color:var(--cyan);
  font-family:"Songti SC",serif;margin:10px 0}
.modal-card p{color:var(--dim);font-size:13px;line-height:1.8;margin:8px 0}
.modal-card .eg{display:flex;gap:5px;margin:10px 0;justify-content:center}
.modal-card .eg .cell{width:52px;height:52px;flex:0 0 auto}
.modal-actions{display:flex;gap:8px;margin-top:16px}
.modal-actions button{flex:1;height:40px;border-radius:9px;background:var(--card);border:1px solid var(--line);font-size:13px}
.modal-actions button.pri{background:var(--cyan);color:#08130f;font-weight:700;border-color:var(--cyan)}
.grid-share{background:var(--card2);border-radius:9px;padding:10px;font-family:ui-monospace,monospace;
  font-size:12px;line-height:1.5;white-space:pre;color:var(--dim);overflow-x:auto;margin-top:10px}
.toast{position:fixed;z-index:80;bottom:calc(120px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);
  background:var(--card2);border:1px solid var(--line);color:var(--txt);padding:9px 16px;border-radius:20px;
  font-size:12px;box-shadow:var(--shadow);white-space:nowrap;animation:fade .2s ease}
.legend{display:flex;gap:12px;justify-content:center;margin:12px 0;font-size:11px;color:var(--dim)}
.legend i{display:inline-block;width:11px;height:11px;border-radius:3px;vertical-align:-1px;margin-right:3px}
/* 五个 tab */
.tabbar{grid-template-columns:repeat(5,1fr)}
.tab i{font-size:16px}
.tab span{font-size:9px}

/* 成语卡片：首屏释义，故事点详情展开 */
.idiom-card{position:relative;overflow:hidden;border:1px solid var(--rc,var(--line));border-radius:14px;
  padding:16px 15px 14px;margin:14px 0;background:linear-gradient(155deg,var(--card),var(--bg2));
  box-shadow:0 6px 20px rgba(0,0,0,.18)}
.idiom-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--rc,var(--cyan)),transparent)}
.ic-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.ic-rarity{font-size:10px;font-weight:700;letter-spacing:1px;color:var(--rc,var(--gold));
  border:1px solid var(--rc,var(--gold));border-radius:20px;padding:2px 9px}
.ic-grade{font-size:10px;color:var(--dim)}
.ic-word{font-size:30px;letter-spacing:6px;text-align:center;margin:10px 0 2px;
  font-family:"Songti SC","Noto Serif CJK SC",serif;color:var(--txt)}
.ic-pinyin{text-align:center;font-size:12px;color:var(--dim);letter-spacing:2px}
.ic-explain{margin-top:12px;padding:11px 12px;border-radius:10px;background:var(--card2);
  font-size:13px;line-height:1.85;color:var(--txt);font-family:"Songti SC","Noto Serif CJK SC",serif}
.ic-label{font-size:10px;color:var(--faint);display:block;margin-bottom:4px;letter-spacing:1px}
.ic-more{display:block;width:100%;margin-top:11px;height:34px;border-radius:9px;
  background:transparent;border:1px dashed var(--rc,var(--cyan));color:var(--rc,var(--cyan));font-size:12px}
.ic-detail{margin-top:12px;animation:fade .2s ease}
.ic-detail section{border-top:1px solid var(--line);padding-top:10px;margin-top:10px}
.ic-detail h4{margin:0 0 5px;font-size:12px;color:var(--rc,var(--gold));letter-spacing:1px}
.ic-detail p{margin:0;font-size:12.5px;line-height:1.85;color:var(--dim);
  font-family:"Songti SC","Noto Serif CJK SC",serif;white-space:pre-wrap;word-break:break-word}
.ic-src{margin-top:12px;padding-top:9px;border-top:1px dashed var(--line);
  font-size:10px;line-height:1.7;color:var(--faint)}

/* 解题轨迹时间线 */
.trace{margin:12px 0}
.sec-head{font-size:12px;color:var(--dim);letter-spacing:1px;margin:16px 0 8px;
  border-left:3px solid var(--cyan);padding-left:8px}
.tr-node{display:flex;gap:10px;position:relative;padding-bottom:12px}
.tr-node::before{content:"";position:absolute;left:11px;top:24px;bottom:0;width:1px;background:var(--line)}
.tr-node:last-of-type::before{display:none}
.tr-dot{flex:0 0 23px;height:23px;border-radius:50%;display:grid;place-items:center;
  font-size:10px;font-weight:700;background:var(--card2);border:1px solid var(--line);color:var(--dim);z-index:1}
.tr-dot.hit{background:var(--cyan-bg);border-color:var(--cyan);color:var(--cyan)}
.tr-dot.win{background:var(--gold);border-color:var(--gold);color:#1a1206}
.tr-body{flex:1;min-width:0}
.tr-line1{display:flex;align-items:baseline;gap:8px}
.tr-word{font-size:15px;letter-spacing:3px;font-family:"Songti SC","Noto Serif CJK SC",serif;color:var(--txt)}
.tr-n{font-size:10px;color:var(--faint)}
.tr-info{font-size:11px;color:var(--dim);margin-top:2px;line-height:1.6}
.tr-bar{height:4px;border-radius:3px;background:var(--card2);margin-top:6px;overflow:hidden}
.tr-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--gold))}
.tr-end{display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:9px;
  background:var(--cyan-bg);border:1px solid var(--cyan);font-size:13px;color:var(--cyan);
  font-family:"Songti SC",serif;letter-spacing:2px}
.mini-actions{display:flex;gap:8px;margin-top:12px}
.mini-actions button{flex:1;height:36px;border-radius:9px;background:var(--card);
  border:1px solid var(--line);font-size:12px}

/* 稀有度图鉴 */
.codex-summary{border-radius:13px;padding:14px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(240,193,75,.10),var(--card))}
.cs-top{display:flex;align-items:baseline;justify-content:space-between}
.cs-num{font-size:26px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums}
.cs-total{font-size:12px;color:var(--dim)}
.cs-bar{height:7px;border-radius:4px;background:var(--card2);margin-top:9px;overflow:hidden}
.cs-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--gold));border-radius:4px}
.cs-tip{font-size:11px;color:var(--faint);margin-top:7px;line-height:1.6}
.codex-seg .seg-btn{font-size:12px;padding:0 2px}
.codex-progress{display:flex;flex-direction:column;gap:6px;margin:2px 0 14px}
.cp-row{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--dim)}
.cp-key{width:36px;font-weight:700;flex:0 0 auto}
.cp-out{flex:1;height:6px;border-radius:4px;background:var(--card2);overflow:hidden}
.cp-in{display:block;height:100%;border-radius:4px}
.cp-num{width:62px;text-align:right;font-variant-numeric:tabular-nums;color:var(--faint)}
.codex-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.cdx-card{border:1px solid var(--rc,var(--line));border-radius:11px;padding:10px 6px;text-align:center;
  background:linear-gradient(165deg,var(--card),var(--bg2));position:relative;overflow:hidden;min-height:88px}
.cdx-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--rc,var(--line))}
.cdx-word{font-size:16px;letter-spacing:2px;font-family:"Songti SC","Noto Serif CJK SC",serif;
  margin:7px 0 3px;color:var(--txt)}
.cdx-r{font-size:10px;color:var(--rc,var(--dim))}
.cdx-meta{font-size:9px;color:var(--faint);margin-top:3px}
.cdx-card.locked{background:var(--card);border-style:dashed;border-color:var(--line);opacity:.5}
.cdx-card.locked .cdx-word{color:var(--faint);letter-spacing:4px}
.codex-empty{grid-column:1/-1;text-align:center;color:var(--dim);font-size:12px;padding:18px 10px;line-height:1.8}
/* 格子尺寸由 JS 按实际可用高度计算，不再按宽度写死 */
@media (max-width:360px){
  .ic-word{font-size:26px}.cdx-word{font-size:14px}.codex-seg .seg-btn{font-size:11px}}
/* 极矮屏 / 横屏：压缩棋盘上方的装饰，把 10 行完整留在输入区之上 */
@media (max-height:640px){
  :root{--board-gap:3px}
  .topbar{padding:calc(6px + env(safe-area-inset-top)) 16px 6px}
  .brand-mark{width:28px;height:28px;font-size:16px;border-radius:7px}
  .brand-txt b{font-size:14px}
  .brand-txt small{font-size:10px}
  .icon-btn{width:28px;height:28px;font-size:14px}
  .view{padding-top:6px}
  .game-head{margin-bottom:4px}
  .hero-chip{padding:3px 8px 3px 3px;font-size:11px}
  .hero-avatar{width:20px;height:20px;font-size:10px}
  .tries-chip span{font-size:17px}
  .hint-bar{margin-top:6px;padding:6px 10px}
  .cheatsheet{margin-top:6px;padding:7px 10px}
  .hanzi{line-height:1}
  .py{margin-top:1px;line-height:1.1}
}