/* ===== 英语闯关乐园 · 样式 ===== */
:root{
  --bg:#FFF8EE;
  --bg2:#FFFDF8;
  --ink:#2F3542;
  --muted:#7C8794;
  --line:#EFE3D2;
  --blue:#378ADD; --blue-d:#1F6BB8; --blue-l:#E6F1FB;
  --amber:#EF9F27; --amber-d:#B4750F; --amber-l:#FAEEDA;
  --green:#3FA96A; --green-l:#E7F6EC;
  --red:#E2574C; --red-l:#FDEBEA;
  --pink:#E77FA6; --pink-l:#FCEBF2;
  --purple:#7F77DD; --purple-l:#EEEDFE;
  --r-md:12px; --r-lg:18px; --r-xl:26px;
  --sh:0 4px 0 #EBDCC6;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px; line-height:1.6;
  padding-bottom:40px;
}
#app{max-width:920px;margin:0 auto;padding:0 14px;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;}
p{margin:0;}
.sub{color:var(--muted);font-size:14px;}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.center{text-align:center;}
.spacer{flex:1;}

/* ===== 顶部 HUD ===== */
.hud{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:8px;
  padding:10px 0;margin-bottom:10px;
  background:linear-gradient(180deg,var(--bg) 70%,rgba(255,248,238,0));
}
.pill{
  background:#fff;border:2px solid var(--line);border-radius:999px;
  padding:5px 14px;font-size:14px;font-weight:700;color:var(--ink);
  display:inline-flex;align-items:center;gap:6px;
}
.pill b{color:var(--amber-d);font-size:15px;}
.hud-right{display:flex;gap:8px;margin-left:auto;align-items:center;}

/* ===== 按钮 ===== */
.btn{
  border-radius:var(--r-md);padding:10px 16px;font-weight:700;font-size:15px;
  border:2px solid var(--line);background:#fff;color:var(--ink);
  transition:transform .08s ease, background .15s;
}
.btn:active{transform:translateY(2px);}
.btn-primary{background:var(--blue);border-color:var(--blue-d);color:#fff;box-shadow:0 4px 0 var(--blue-d);}
.btn-amber{background:var(--amber);border-color:var(--amber-d);color:#fff;box-shadow:0 4px 0 var(--amber-d);}
.btn-green{background:var(--green);border-color:#2C8451;color:#fff;box-shadow:0 4px 0 #2C8451;}
.btn-ghost{background:#fff;}
.btn-lg{padding:14px 28px;font-size:17px;}
.btn.sm{padding:6px 12px;font-size:13px;box-shadow:none;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;pointer-events:none;}

/* ===== 乐园地图 ===== */
.banner{
  background:linear-gradient(180deg,#EAF4FF,#FFF6E6);
  border:3px solid var(--line);border-radius:var(--r-xl);
  padding:18px 18px 12px;text-align:center;margin-bottom:14px;
}
.banner h1{font-size:26px;letter-spacing:1px;}
.banner .sub{margin-top:4px;}
.mascot-row{display:flex;justify-content:center;gap:2px;margin-top:6px;}
.mascot-row svg{animation:bob 2.4s ease-in-out infinite;}
.mascot-row svg:nth-child(2n){animation-delay:.3s;}
.mascot-row svg:nth-child(3n){animation-delay:.6s;}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}

.card{
  background:#fff;border:3px solid var(--line);border-radius:var(--r-lg);
  padding:16px;margin-bottom:14px;
}
.card-title{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.card-title h3{font-size:18px;}
.card-title .idx{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--blue-l);color:var(--blue-d);font-weight:700;font-size:15px;flex:none;
}
.badge-live{
  margin-left:auto;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:var(--green-l);color:#2C8451;
}
.badge-lock{margin-left:auto;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;background:#F1EFE8;color:#8A8578;}

/* 关卡卡 */
.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:6px;}
.level-card{
  background:var(--bg2);border:2px solid var(--line);border-radius:var(--r-md);
  padding:10px 12px;text-align:left;position:relative;
}
.level-card:hover{border-color:var(--blue);}
.level-card.locked{opacity:.5;}
.level-card .lc-top{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--blue-d);font-weight:700;}
.level-card .lc-name{font-size:14px;font-weight:700;margin-top:2px;}
.level-card .lc-cn{font-size:12px;color:var(--muted);}
.stars{letter-spacing:1px;color:#F0A93B;font-size:15px;}

/* ===== 关卡界面 ===== */
.level-top{margin-bottom:10px;}
.tag{
  display:inline-block;background:var(--purple-l);color:#4A43A8;
  font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;margin-bottom:6px;
}
.level-top h2{font-size:22px;}
.progress{height:12px;background:#F1EFE8;border-radius:999px;overflow:hidden;margin-top:10px;}
.progress .bar{height:100%;width:0;background:linear-gradient(90deg,#7FC7A6,#3FA96A);border-radius:999px;transition:width .3s;}
.stage{margin-top:14px;}
.tipbar{
  margin-top:12px;background:#fff;border:2px dashed var(--line);border-radius:var(--r-md);
  padding:10px 14px;font-size:14px;color:var(--muted);min-height:48px;
}
.tipbar b{color:var(--ink);}

/* 场景寻宝 */
.checklist{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}
.checklist span{
  width:44px;height:34px;border-radius:8px;border:2px dashed var(--line);
  display:grid;place-items:center;font-weight:700;font-size:14px;color:#C9C2B4;background:#fff;
}
.checklist span.got{border:2px solid var(--green);background:var(--green-l);color:#2C8451;}
.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;}
.scene-card{
  position:relative;height:170px;border-radius:var(--r-md);border:3px solid var(--line);
  overflow:hidden;background:#fff;
}
.scene-card .sc-label{
  position:absolute;left:8px;top:6px;font-size:12px;font-weight:700;color:var(--muted);
  background:rgba(255,255,255,.85);padding:1px 8px;border-radius:999px;z-index:3;
}
.chip{
  position:absolute;background:#fff;border:3px solid var(--blue);color:var(--blue-d);
  border-radius:10px;font-weight:800;font-size:17px;padding:4px 12px;box-shadow:0 3px 0 rgba(55,138,221,.25);
  z-index:2;
}
.chip.found{border-color:var(--green);color:#2C8451;background:var(--green-l);}
.chip.shake{animation:shake .4s;}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.pulse{animation:pulse 1s ease-in-out infinite;}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}

/* 通用题目 */
.quiz{background:#fff;border:3px solid var(--line);border-radius:var(--r-lg);padding:16px;margin-bottom:12px;}
.quiz .q{font-size:17px;font-weight:700;margin-bottom:10px;}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;}
.opt{
  border:2px solid var(--line);background:var(--bg2);border-radius:var(--r-md);
  padding:12px;text-align:left;font-size:15px;font-weight:700;
}
.opt:hover{border-color:var(--blue);background:var(--blue-l);}
.opt.ok{border-color:var(--green);background:var(--green-l);color:#2C8451;}
.opt.bad{border-color:var(--red);background:var(--red-l);color:#B23A30;}
.opt .opt-en{font-size:17px;}
.opt .opt-cn{font-size:12px;color:var(--muted);font-weight:400;}

/* 术语卡 */
.terms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;}
.term-card{
  background:#fff;border:3px solid var(--line);border-radius:var(--r-lg);
  padding:14px;text-align:center;
}
.term-card:hover{border-color:var(--amber);}
.term-card .tc-en{font-size:15px;font-weight:800;margin-top:6px;color:var(--blue-d);}
.term-card .tc-cn{font-size:13px;color:var(--muted);}
.term-card .tc-tip{font-size:12px;color:var(--amber-d);font-weight:700;margin-top:4px;}

/* 消消乐 */
.mem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;}
.mem-tile{
  aspect-ratio:1/0.78;border-radius:var(--r-md);border:3px solid var(--line);
  background:var(--purple-l);color:#4A43A8;font-weight:800;font-size:15px;
  display:grid;place-items:center;padding:6px;text-align:center;line-height:1.25;
}
.mem-tile.cn{background:var(--amber-l);color:var(--amber-d);}
.mem-tile.sel{outline:4px solid var(--blue);outline-offset:-4px;}
.mem-tile.matched{visibility:hidden;}
.mem-tile.shake{animation:shake .4s;}

/* 故事剧场 */
.story{display:flex;flex-direction:column;gap:10px;}
.story-panel{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:3px solid var(--line);
  border-radius:var(--r-lg);padding:12px;
}
.story-panel.active{border-color:var(--amber);background:#FFFCF4;}
.story-panel .sp-line{font-size:16px;font-weight:700;}
.story-panel .sp-cn{font-size:13px;color:var(--muted);}
.story-panel .sp-who{font-size:12px;color:var(--blue-d);font-weight:700;}

/* 拼句 */
.sentence-box{
  background:#fff;border:3px dashed var(--line);border-radius:var(--r-md);
  min-height:56px;padding:10px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.word-chip{
  background:var(--blue-l);border:2px solid var(--blue);color:var(--blue-d);
  border-radius:10px;padding:6px 14px;font-weight:800;font-size:16px;
}
.word-chip.used{opacity:.3;pointer-events:none;}
.slot-word{
  background:var(--green-l);border:2px solid var(--green);color:#2C8451;
  border-radius:10px;padding:6px 14px;font-weight:800;font-size:16px;
}

/* 字母歌 */
.abc-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;}
.abc-tile{
  aspect-ratio:1;border-radius:10px;border:2px solid var(--line);background:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;color:var(--blue-d);
}
.abc-tile.on{background:var(--amber);border-color:var(--amber-d);color:#fff;transform:scale(1.12);}

/* 对话选项（人物） */
.dialog{display:flex;gap:12px;align-items:flex-end;}
.bubble-wrap{display:flex;gap:10px;align-items:flex-end;}
.bubble{
  position:relative;background:#fff;border:3px solid var(--line);border-radius:16px;
  padding:10px 14px;max-width:420px;
}
.bubble:after{
  content:"";position:absolute;left:-11px;bottom:14px;width:0;height:0;
  border:8px solid transparent;border-right-color:var(--line);
}
.bubble .b-en{font-size:17px;font-weight:800;}
.bubble .b-cn{font-size:13px;color:var(--muted);}

/* ===== 小家 ===== */

/* —— 一、别墅总览：两层小楼 + 屋顶 + 前院 —— */
.villa{
  position:relative;border:3px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(#CBEGFA 0%,#D9EEFB 40%,#EAF6FF 100%);
  padding:0 8px;
}
.v-sun{position:absolute;left:18px;top:16px;width:32px;height:32px;border-radius:50%;
  background:radial-gradient(circle at 36% 34%,#FFF0B8,#F6C63F);
  box-shadow:0 0 0 7px rgba(255,226,140,.32);}
.v-cloud{position:absolute;height:16px;background:#fff;border-radius:999px;opacity:.92;}
.v-cloud.c1{right:24px;top:20px;width:62px;}
.v-cloud.c2{right:72px;top:36px;width:38px;height:12px;opacity:.7;}
.v-roof{
  position:relative;height:76px;margin:0 -8px 0;padding-bottom:6px;
  background:linear-gradient(180deg,#F0895A,#D45C36);
  clip-path:polygon(50% 2%,100% 100%,0 100%);
  display:flex;align-items:flex-end;justify-content:center;
}
.v-roof-t{font-size:13px;font-weight:800;letter-spacing:1px;color:#FFF4EC;text-shadow:0 1px 0 rgba(0,0,0,.18);}
.v-body{
  position:relative;background:#FFFDF7;border:3px solid #E4D6C0;border-top:none;
  margin:0;padding:6px 8px 8px;
}
.v-floor{padding:5px 0 3px;}
/* 院子在一楼外面（房子的正前方），用草地 + 木栅栏区分 */
.v-floor[data-f="yard"]{
  position:relative;margin:0 -8px;padding:13px 8px 14px;
  background:linear-gradient(180deg,#9AD273,#78B855);
}
.v-floor[data-f="yard"]::before{
  content:'';position:absolute;left:0;right:0;top:0;height:9px;border-top:2px solid #E2CDA8;
  background:repeating-linear-gradient(90deg,#F6E8D2 0 6px,rgba(0,0,0,0) 6px 14px);
}
.v-floor[data-f="yard"] .v-lbl{color:#2F5F22;margin-top:4px;}
.v-lbl{font-size:11px;font-weight:800;color:#8A8578;letter-spacing:.4px;margin:0 2px 5px;}
.v-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:8px;}
.vroom{
  position:relative;display:block;text-align:left;
  border:3px solid var(--line);border-radius:var(--r-md);background:#fff;
  padding:7px 8px 8px;transition:.15s;
}
.vroom:hover{border-color:var(--amber);transform:translateY(-2px);}
.vroom.locked{background:#F7F5F0;opacity:.85;}
.vroom.locked:hover{border-color:var(--line);transform:none;}
.vroom.full{background:var(--green-l);border-color:var(--green);}
.vr-hd{display:flex;align-items:center;justify-content:space-between;gap:6px;}
.vr-cn{font-size:15px;font-weight:800;}
.vr-badge{font-size:11px;font-weight:800;color:var(--blue-d);background:var(--blue-l);
  border-radius:999px;padding:1px 7px;white-space:nowrap;}
.vroom.full .vr-badge{color:#2C8451;background:#D7F0E0;}
.vr-en{font-size:11px;color:var(--muted);}
.vr-art{display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin:5px 0 4px;min-height:30px;}
.vr-i{display:block;line-height:0;}
.vr-more{font-size:11px;font-weight:800;color:var(--muted);}
.vr-none{font-size:11px;color:#B6AF9F;}
.vr-bar{height:6px;border-radius:999px;background:#F0EAE0;overflow:hidden;}
.vr-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#7FC49B,#3FA96A);}
.vr-unit{font-size:11px;font-weight:700;color:var(--amber-d);margin-top:4px;}
.vr-lock{font-size:11px;color:#8A8578;margin-top:3px;}

/* —— 二、房间内景：固定槽位 —— */
.room-stage{display:flex;gap:12px;align-items:flex-start;margin-top:12px;}
.scene-wrap{flex:1 1 auto;min-width:0;}
.scene{
  position:relative;width:100%;aspect-ratio:100/58;overflow:hidden;
  border:3px solid var(--line);border-radius:var(--r-lg);background:var(--wc,#F4EFE6);
}
.sc-wall{
  position:absolute;left:0;right:0;top:0;bottom:60%;
  background-image:
    repeating-linear-gradient(90deg,rgba(255,255,255,.55) 0 24px,rgba(255,255,255,0) 24px 48px),
    linear-gradient(180deg,rgba(255,255,255,.5),rgba(0,0,0,.03));
}
.sc-floor{
  position:absolute;left:0;right:0;top:40%;bottom:0;background:var(--fc,#E4D5BC);
  background-image:
    linear-gradient(180deg,rgba(255,255,255,.32),rgba(0,0,0,.07)),
    repeating-linear-gradient(90deg,rgba(0,0,0,.06) 0 1px,rgba(0,0,0,0) 1px 36px);
}
.sc-base{
  position:absolute;left:0;right:0;height:7px;top:calc(40% - 7px);
  background:linear-gradient(180deg,#E3D3B8,#C6AD8B);
}
.sc-deco{position:absolute;inset:0;pointer-events:none;}
.sc-lamp{
  position:absolute;left:45%;top:0;width:10%;height:9%;border-radius:50% 50% 42% 42%;
  background:radial-gradient(circle at 50% 32%,#FFEFAE,#F0C24A);
  box-shadow:0 6px 18px rgba(240,194,74,.4);
}
.sc-lamp::before{content:'';position:absolute;left:50%;top:-40%;width:2px;height:40%;
  background:rgba(0,0,0,.18);transform:translateX(-50%);}
.sc-sun{
  position:absolute;left:45%;top:1%;width:10%;aspect-ratio:1/1;border-radius:50%;
  background:radial-gradient(circle at 38% 34%,#FFF3BE,#F5C23A);
  box-shadow:0 0 20px rgba(245,194,58,.5);
}
.sc-cloud{position:absolute;background:#fff;border-radius:999px;opacity:.85;}
.sc-cloud.c1{left:7%;top:5%;width:17%;height:6%;}
.sc-cloud.c2{right:9%;top:12%;width:12%;height:5%;}
.sc-rug{
  position:absolute;left:29%;top:71%;width:42%;height:15%;border-radius:50%;
  background:rgba(255,255,255,.42);border:2px dashed rgba(0,0,0,.08);
}
.pslot{
  position:absolute;border:2.5px dashed #C6BCAA;border-radius:12px;
  background:rgba(255,255,255,.74);padding:3px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  transition:.14s;overflow:hidden;
}
.pslot .ps-cn{font-size:12px;font-weight:800;color:#A99C86;text-align:center;line-height:1.25;}
.pslot:hover{border-color:var(--blue);background:rgba(230,241,251,.94);}
.pslot.done{border:2.5px solid var(--green);background:#fff;box-shadow:0 3px 0 rgba(63,169,106,.16);}
.pslot.done:hover{background:#fff;}
.pslot .ps-art{flex:1 1 auto;min-height:0;width:100%;display:flex;align-items:center;justify-content:center;}
.pslot .ps-art svg{display:block;width:auto;height:auto;max-width:100%;max-height:100%;}
.pslot .ps-en{
  font-size:12px;font-weight:800;color:#2C8451;line-height:1.15;text-align:center;
  max-width:96%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pslot.done::after{content:'✓';position:absolute;right:3px;top:1px;font-size:12px;font-weight:800;color:var(--green);}
.pslot.hint{border-color:var(--blue);background:var(--blue-l);animation:hintPulse 1s ease-in-out infinite;}
@keyframes hintPulse{0%,100%{box-shadow:0 0 0 2px #BBD6EF}50%{box-shadow:0 0 0 7px rgba(55,138,221,.22)}}
.pslot.shake{animation:shake .4s;}
.pslot.pop{animation:pop .34s ease;}

.tray{
  flex:0 0 196px;display:flex;gap:8px;flex-wrap:wrap;align-content:flex-start;
  padding:10px;background:#fff;border:3px solid var(--line);border-radius:var(--r-lg);
}
.tray-item{
  width:78px;border:2px solid var(--line);border-radius:var(--r-md);background:var(--bg2);
  padding:6px 4px;text-align:center;
}
.tray-item .ti-en{font-size:11px;font-weight:800;color:var(--blue-d);line-height:1.15;}
.tray-item .ti-cn{font-size:10px;color:var(--muted);}
.tray-item.selected{border-color:var(--amber);background:var(--amber-l);transform:translateY(-3px);}
.tray-item.used{opacity:.35;pointer-events:none;}

/* 单词册 */
.word-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;}
.word-card{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);padding:10px 12px;
}
.word-card .w-en{font-size:17px;font-weight:800;color:var(--blue-d);}
.word-card .w-cn{font-size:13px;color:var(--muted);}
.mini-btn{font-size:12px;color:var(--blue-d);font-weight:700;}

/* ===== 单元导航 ===== */
.unit-nav{
  position:sticky;top:58px;z-index:25;display:flex;gap:8px;overflow-x:auto;
  padding:8px 4px;margin:0 0 12px;
  background:linear-gradient(180deg,var(--bg) 80%,rgba(255,248,238,.85));
  -webkit-overflow-scrolling:touch;
}
.unit-chip{
  flex:none;display:flex;align-items:center;gap:6px;
  background:#fff;border:2px solid var(--line);border-radius:999px;
  padding:6px 14px;font-weight:800;font-size:14px;color:var(--blue-d);
}
.unit-chip:hover{border-color:var(--blue);}
.unit-chip.full{background:var(--green-l);border-color:var(--green);color:#2C8451;}
.unit-chip .uc-dot{font-size:11px;font-weight:700;color:var(--muted);}
.unit-chip.full .uc-dot{color:#2C8451;}

/* ===== 背单词记忆卡 ===== */
.flash-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;}
.flash-card{
  background:#fff;border:3px solid var(--line);border-radius:var(--r-lg);
  padding:16px 12px;text-align:center;min-height:104px;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
}
.flash-card:hover{border-color:var(--blue);}
.flash-card.on{border-color:var(--green);background:var(--green-l);}
.flash-card .fc-en{font-size:19px;font-weight:800;color:var(--blue-d);word-break:break-word;}
.flash-card.on .fc-en{color:#2C8451;}
.flash-card .fc-cn{font-size:14px;font-weight:700;color:var(--ink);}
.flash-card .fc-cn.hide{font-size:12px;font-weight:400;color:var(--muted);}

/* ===== 听写拼词 ===== */
.dt-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px;
  background:#fff;border:3px dashed var(--line);border-radius:var(--r-md);padding:12px;}
.dt-fixed{
  width:34px;height:44px;display:grid;place-items:center;
  background:#F1EFE8;border-radius:8px;font-weight:800;font-size:20px;color:var(--muted);
}
.dt-slot{
  width:34px;height:44px;display:grid;place-items:center;
  border:2px dashed var(--blue);border-radius:8px;background:var(--blue-l);
  font-weight:800;font-size:20px;color:var(--blue-d);
}
.dt-slot.filled{border:2px solid var(--green);background:var(--green-l);color:#2C8451;}
.dt-space{width:14px;}
.dt-letter{
  width:44px;height:44px;border-radius:10px;border:2px solid var(--line);background:var(--bg2);
  font-weight:800;font-size:19px;color:var(--ink);
}
.dt-letter:hover{border-color:var(--amber);background:var(--amber-l);}
.dt-letter.used{opacity:.32;pointer-events:none;}

/* 房间完成态 */
.vroom.full .vr-lock{color:#2C8451;}

/* 结果弹窗 & 提示 */
.overlay{
  position:fixed;inset:0;background:rgba(47,53,66,.45);display:grid;place-items:center;z-index:60;padding:16px;
}
.result-card{
  background:#fff;border:4px solid var(--line);border-radius:var(--r-xl);
  padding:22px;max-width:420px;width:100%;text-align:center;animation:pop .28s ease;
}
@keyframes pop{from{transform:scale(.86);opacity:0}to{transform:scale(1);opacity:1}}
.result-card h3{font-size:20px;}
.result-card .big-stars{font-size:38px;color:#F0A93B;letter-spacing:6px;margin:8px 0;}
.result-card .reward{font-weight:800;color:var(--amber-d);}
#toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);
  background:rgba(47,53,66,.92);color:#fff;padding:10px 20px;border-radius:999px;
  font-size:14px;font-weight:700;opacity:0;pointer-events:none;transition:.22s;z-index:80;max-width:80vw;text-align:center;
}
#toast.show{opacity:1;transform:translate(-50%,0);}
.chip-note{font-size:12px;color:var(--muted);}

@media (max-width:700px){
  .room-stage{flex-direction:column;}
  .scene-wrap{width:100%;}
  .scene{aspect-ratio:100/80;}
  .tray{flex:1 1 auto;width:100%;border-radius:var(--r-lg);}
}

@media (max-width:560px){
  .mem-grid{grid-template-columns:repeat(3,1fr);}
  .abc-grid{grid-template-columns:repeat(6,1fr);}
  .banner h1{font-size:22px;}
  .v-roof{height:60px;}
  .v-row{grid-template-columns:repeat(auto-fit,minmax(104px,1fr));}
  .scene{aspect-ratio:100/92;}
  .pslot .ps-cn{font-size:10px;}
  .pslot .ps-en{font-size:10px;}
  .tray-item{width:70px;}
}

/* ============================================================
   单元动感画面（每个单元一张会动的小舞台）
   ============================================================ */
.unit-scene{display:block;width:100%;height:auto;border-radius:var(--r-md);overflow:hidden;margin:4px 0 12px;}
.unit-scene *{transform-box:fill-box;transform-origin:center;}
.unit-scene text{font-family:inherit;font-weight:800;}

/* —— U1 · 火车进站 —— */
@keyframes u1run{from{transform:translateX(-480px)}to{transform:translateX(660px)}}
.u1-train{animation:u1run 13s linear infinite;}
@keyframes u1bob{from{transform:translateY(0)}to{transform:translateY(-7px)}}
.u1-tag{animation:u1bob 1.4s ease-in-out infinite alternate;}
@keyframes u1sway{0%,100%{transform:rotate(-3deg)}50%{transform:rotate(3deg)}}
.u1-sign{animation:u1sway 3s ease-in-out infinite;}

/* —— U2 · 英汉互借词 —— */
@keyframes u2l{0%,100%{transform:translateX(0)}50%{transform:translateX(26px)}}
@keyframes u2r{0%,100%{transform:translateX(0)}50%{transform:translateX(-26px)}}
.u2-cardL{animation:u2l 3.4s ease-in-out infinite;}
.u2-cardR{animation:u2r 3.4s ease-in-out infinite;}
@keyframes u2ar{0%,100%{transform:translateX(0);opacity:.5}50%{transform:translateX(9px);opacity:1}}
.u2-arrow{animation:u2ar 1.7s ease-in-out infinite;}
@keyframes u2st{0%{transform:translateY(0) scale(.7);opacity:.9}100%{transform:translateY(-42px) scale(1.6);opacity:0}}
.u2-steam{animation:u2st 2.4s ease-out infinite;}
@keyframes u2w{0%,72%,100%{opacity:.15}20%,52%{opacity:1}}
.u2-word1{animation:u2w 3.6s ease-in-out infinite;}
.u2-word2{animation:u2w 3.6s ease-in-out infinite;animation-delay:1.2s;}
.u2-word3{animation:u2w 3.6s ease-in-out infinite;animation-delay:2.4s;}

/* —— U3 · 打招呼 —— */
@keyframes u3b{0%,42%{opacity:1;transform:translateY(0)}52%,90%{opacity:0;transform:translateY(-8px)}100%{opacity:1;transform:translateY(0)}}
.u3-b1{animation:u3b 5s ease-in-out infinite;}
.u3-b2{animation:u3b 5s ease-in-out infinite;animation-delay:2.5s;}
@keyframes u3h{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
.u3-hello{animation:u3h 1.6s ease-in-out infinite;}
@keyframes u3w{0%,100%{transform:rotate(-10deg)}50%{transform:rotate(28deg)}}
.u3-armR,.u3-armL{animation:u3w .9s ease-in-out infinite;}

/* —— U4 · 彩色键盘 —— */
@keyframes u4k{0%,100%{fill:#E2574C;transform:translateY(0)}25%{fill:#F2C14E;transform:translateY(-3px)}50%{fill:#378ADD;transform:translateY(0)}75%{fill:#3FA96A;transform:translateY(-3px)}}
.u4-key{animation:u4k 5s ease-in-out infinite;}
@keyframes u4br{0%,100%{transform:translate(0,0)}50%{transform:translate(350px,8px)}}
.u4-brush{animation:u4br 4.2s ease-in-out infinite;}
@keyframes u4t{0%,72%,100%{opacity:.22}22%,52%{opacity:1}}
.u4-t1{animation:u4t 3s ease-in-out infinite;}
.u4-t2{animation:u4t 3s ease-in-out infinite;animation-delay:1s;}
.u4-t3{animation:u4t 3s ease-in-out infinite;animation-delay:2s;}

/* —— U5 · 数字密码锁 —— */
@keyframes u5d{0%,100%{transform:scale(1)}50%{transform:scale(1.14)}}
.u5-digit{animation:u5d .9s ease-in-out infinite;}
@keyframes u5l{0%,55%,100%{transform:translateY(0) rotate(0)}72%,88%{transform:translateY(-4px) rotate(-8deg)}}
.u5-lock{animation:u5l 3.6s ease-in-out infinite;}
@keyframes u5s{0%,55%,100%{transform:translateY(0) rotate(0)}72%,88%{transform:translateY(-9px) rotate(-26deg)}}
.u5-shackle{animation:u5s 3.6s ease-in-out infinite;}
@keyframes u5r{0%{transform:scale(.6);opacity:.9}100%{transform:scale(1.4);opacity:0}}
.u5-ring{animation:u5r 2.2s ease-out infinite;}
@keyframes u5y{0%,72%,100%{opacity:.35}52%{opacity:1}}
.u5-say{animation:u5y 3.6s ease-in-out infinite;}

/* —— U6 · 画一张脸 —— */
@keyframes u6d{0%{stroke-dashoffset:214}55%,100%{stroke-dashoffset:0}}
.u6-draw{stroke-dasharray:214;animation:u6d 4s ease-in-out infinite;}
@keyframes u6f{0%,52%{opacity:0}66%,100%{opacity:1}}
.u6-eye,.u6-mouth{animation:u6f 4s ease-in-out infinite;}
@keyframes u6p{0%,100%{transform:translate(0,0) rotate(0)}30%{transform:translate(-16px,-10px) rotate(-14deg)}62%{transform:translate(14px,6px) rotate(10deg)}}
.u6-pen{animation:u6p 4s ease-in-out infinite;}
@keyframes u6sp{0%,100%{transform:scale(.6);opacity:.4}50%{transform:scale(1.35);opacity:1}}
.u6-spark{animation:u6sp 1.4s ease-in-out infinite;}
@keyframes u6t{0%,62%,100%{opacity:.25}26%,52%{opacity:1}}
.u6-p1{animation:u6t 4s ease-in-out infinite;}
.u6-p2{animation:u6t 4s ease-in-out infinite;animation-delay:1.3s;}
.u6-p3{animation:u6t 4s ease-in-out infinite;animation-delay:2.6s;}

/* —— U7 · 好的倾听者 —— */
@keyframes u7w{0%{transform:scale(.55);opacity:0}45%{opacity:.95}100%{transform:scale(1.15);opacity:0}}
.u7-wave{animation:u7w 1.6s ease-out infinite;}
@keyframes u7h{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-6px) rotate(-13deg)}}
.u7-hand{animation:u7h 1.2s ease-in-out infinite;}
@keyframes u7s{0%,100%{transform:scale(1);opacity:.9}50%{transform:scale(1.13);opacity:1}}
.u7-shh{animation:u7s 2.2s ease-in-out infinite;}
@keyframes u7t{0%,62%,100%{opacity:.3}30%,52%{opacity:1}}
.u7-t{animation:u7t 3s ease-in-out infinite;}

/* —— U8 · 小动物赛跑 —— */
@keyframes u8run{from{transform:translateX(-70px)}to{transform:translateX(700px)}}
.u8-run{animation:u8run 6s linear infinite;}
@keyframes u8la{0%,100%{transform:rotate(-26deg)}50%{transform:rotate(26deg)}}
.u8-legA{animation:u8la .34s ease-in-out infinite;}
.u8-legB{animation:u8la .34s ease-in-out infinite;animation-delay:-.17s;}
@keyframes u8b{0%,100%{transform:translateY(0)}50%{transform:translateY(-24px)}}
.u8-ball{animation:u8b 1s ease-in-out infinite;}
@keyframes u8t{0%,72%,100%{opacity:.3}22%,52%{opacity:1}}
.u8-t1{animation:u8t 4s ease-in-out infinite;}
.u8-t2{animation:u8t 4s ease-in-out infinite;animation-delay:2s;}
@keyframes u8g{from{transform:translateX(0)}to{transform:translateX(-80px)}}
.u8-ground{animation:u8g .8s linear infinite;}

/* —— Review · 庭院音乐会 —— */
@keyframes u9n{0%{transform:translateY(8px) scale(.8);opacity:0}28%{opacity:1}100%{transform:translateY(-86px) scale(1.1);opacity:0}}
.u9-note{animation:u9n 3.6s ease-out infinite;}
@keyframes u9s{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-5px) rotate(2deg)}}
.u9-sing{animation:u9s 1.1s ease-in-out infinite;}
@keyframes u9l{0%,100%{transform:rotate(-7deg);opacity:.45}50%{transform:rotate(7deg);opacity:.72}}
.u9-lamp{animation:u9l 3.4s ease-in-out infinite;}
@keyframes u9t{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
.u9-t{animation:u9t 2s ease-in-out infinite;}

/* —— 结算撒花 —— */
.fx-burst{position:fixed;inset:0;pointer-events:none;z-index:200;overflow:hidden;}
.fx-burst span{position:absolute;top:-44px;animation:fxfall 2.6s ease-in forwards;}
@keyframes fxfall{
  0%{transform:translateY(0) rotate(0);opacity:1}
  100%{transform:translateY(106vh) rotate(540deg);opacity:0}
}

@media (prefers-reduced-motion:reduce){
  .unit-scene *{animation-duration:6s !important;}
}

/* ================= 单元预习页（.pv-*） ================= */
.pv-top{padding-bottom:16px;}
.pv-tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.5px;color:#7A5A12;
  background:#FCF0D4;border:2px solid #F0DCA8;border-radius:999px;padding:3px 11px;margin-bottom:8px;}
.pv-progline{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap;}
.pv-prognum{font-size:13px;font-weight:700;color:#6C6455;white-space:nowrap;}
.pv-prognum b{color:#C4801A;font-size:17px;}
.pv-prog{flex:1 1 160px;height:12px;background:#EFE9DD;border-radius:999px;overflow:hidden;
  display:block;max-width:420px;}
.pv-prog b{display:block;height:100%;background:linear-gradient(90deg,#F0B849,#E39B32);
  border-radius:999px;transition:width .35s ease;}
.pv-done-tip{margin:9px 0 0;font-size:13px;font-weight:700;color:#2C8451;}

/* 步骤条 */
.pv-tabs{display:flex;gap:8px;overflow-x:auto;padding:2px 0 10px;}
.pv-tab{flex:0 0 auto;display:flex;align-items:center;gap:5px;border:2px solid var(--line);
  background:#fff;border-radius:999px;padding:7px 13px;font-size:13px;font-weight:800;color:#6C6455;
  transition:transform .12s;}
.pv-tab.on{background:var(--amber-l);border-color:var(--amber);color:#8A5A0B;box-shadow:0 3px 0 #EBD9AE;}
.pv-tab-i{font-size:15px;}
.pv-tick{color:#2C8451;font-weight:900;}

.pv-note{font-size:13px;line-height:1.6;color:#6C6455;background:#F7F5F0;border:2px dashed #E4DCCB;
  border-radius:12px;padding:9px 12px;margin-bottom:12px;}
.pv-note.warn{background:#FDF3DC;border-color:#EBD9AE;color:#8A5A0B;}

/* ① 词卡 */
.pv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:9px;}
.pv-card{position:relative;border:2px solid var(--line);background:#FFFDF8;border-radius:14px;
  padding:10px 8px 9px;display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;
  box-shadow:0 3px 0 #EFE7D8;transition:transform .12s,border-color .12s;overflow:visible;}
.pv-card:active{transform:translateY(2px);}
.pv-card.on{border-color:var(--amber);background:#FDF3DC;box-shadow:0 0 0 3px #F6E3B8;transform:translateY(-2px);}
.pv-en{font-size:18px;font-weight:900;color:#2C3A48;line-height:1.15;word-break:break-word;}
.pv-ipa{font-size:13px;color:#7C8794;letter-spacing:.2px;}
.pv-cn{font-size:12px;color:#8A8578;}
/* 慢速那一拍的小角标 */
.pv-card.slow::after,.pv-rule.slow::after{content:'🐢 慢速';position:absolute;top:-9px;right:-3px;
  font-size:10px;font-weight:800;color:#fff;background:#8AA0B4;border-radius:999px;padding:1px 7px;
  box-shadow:0 1px 2px rgba(0,0,0,.14);white-space:nowrap;}

/* ② 自然拼读 */
.pv-rules{display:grid;grid-template-columns:1fr;gap:10px;}
.pv-rule{position:relative;display:block;text-align:left;border:2px solid var(--line);background:#FFFDF8;
  border-radius:14px;padding:12px 14px;box-shadow:0 3px 0 #EFE7D8;transition:transform .12s,border-color .12s;}
.pv-rule.on{border-color:var(--amber);background:#FDF3DC;box-shadow:0 0 0 3px #F6E3B8;}
.pv-r-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;}
.pv-combo{font-size:25px;font-weight:900;color:#1F6BB8;letter-spacing:1px;background:#E9F2FB;
  border:2px solid #CBDFF3;border-radius:10px;padding:0 12px;line-height:1.35;}
.pv-ipa-big{font-size:17px;font-weight:800;color:#B4651C;}
.pv-hint{display:block;font-size:13px;color:#6C6455;margin:8px 0 9px;line-height:1.55;}
.pv-r-words{display:flex;flex-wrap:wrap;gap:8px;}
.pv-rw{display:inline-flex;align-items:baseline;gap:5px;background:#F5F2EA;border-radius:9px;
  padding:3px 9px;font-size:14px;}
.pv-rw b{font-weight:800;color:#2C3A48;}
.pv-rw i{font-style:normal;font-size:12px;color:#7C8794;}
.pv-rw em{font-style:normal;font-size:10px;font-weight:800;color:#fff;background:#B9AE99;
  border-radius:6px;padding:0 4px;}
.pv-rule.on .pv-rw{background:#fff;}
.pv-tipbubble{font-size:13px;line-height:1.6;color:#8A5A0B;background:#FDF3DC;border:2px solid #EBD9AE;
  border-radius:12px;padding:9px 12px;margin:10px 0 0;}

/* ③ 对话 / ④ 韵诗 */
.pv-lines{display:grid;gap:9px;}
.pv-line{display:flex;gap:11px;align-items:flex-start;text-align:left;border:2px solid var(--line);
  background:#fff;border-radius:14px;padding:10px 12px;box-shadow:0 3px 0 #EFE7D8;
  transition:transform .12s,border-color .12s;}
.pv-line.on{border-color:var(--amber);background:#FDF3DC;box-shadow:0 0 0 3px #F6E3B8;}
.pv-av{flex:0 0 auto;width:46px;line-height:0;}
.pv-line-b{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1;}
.pv-who{font-size:11px;font-weight:800;color:#8A8578;}
.pv-ensay{font-size:17px;font-weight:800;color:#2C3A48;line-height:1.35;}
.pv-cnsay{font-size:12px;color:#8A8578;}
.pv-line.chant{display:block;}
.pv-line.chant .pv-ensay{font-size:16px;}
.pv-chant-t{font-size:13px;font-weight:800;color:#8A5A0B;margin:0 0 8px;}

/* 底部操作条 */
.pv-bar{position:sticky;bottom:8px;z-index:20;display:flex;gap:9px;flex-wrap:wrap;align-items:center;
  padding:11px;margin-top:14px;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);border:3px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh);}
.pv-bar .btn{flex:1 1 auto;min-width:132px;}
.pv-dim{opacity:.5;}

/* 地图单元卡上的预习入口 */
.pv-cta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 2px;
  background:#F7F5F0;border:2px dashed #E4DCCB;border-radius:12px;padding:8px 11px;}
.pv-cta.ok{background:#EFF8F1;border-color:#BFE3CB;border-style:solid;}
.pv-cta-t{flex:1 1 170px;font-size:13px;font-weight:700;color:#6C6455;}
.pv-cta.ok .pv-cta-t{color:#2C8451;}

@media (min-width:760px){
  .pv-rules{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:480px){
  .pv-grid{grid-template-columns:repeat(3,1fr);gap:7px;}
  .pv-en{font-size:15px;}
  .pv-ipa{font-size:11px;}
  .pv-cn{font-size:11px;}
  .pv-ensay{font-size:16px;}
  .pv-combo{font-size:22px;}
  .pv-bar{padding:9px;gap:7px;}
  .pv-bar .btn{min-width:0;flex:1 1 46%;}
}
@media (prefers-reduced-motion:reduce){
  .pv-prog b{transition:none;}
  .pv-card,.pv-rule,.pv-line,.pv-tab{transition:none;}
}

/* ===== 登录 / 激活页 ===== */
body.auth-body{
  background:linear-gradient(180deg,#EAF4FF 0%,#FFF8EE 55%,#FFF3E2 100%);
  min-height:100vh;padding-bottom:20px;
}
.auth-wrap{
  max-width:520px;margin:0 auto;padding:26px 16px 36px;
  display:flex;flex-direction:column;justify-content:center;
  min-height:calc(100vh - 60px);
}
.auth-card{
  background:var(--bg2);border:3px solid var(--line);border-radius:var(--r-xl);
  padding:22px 20px;box-shadow:var(--sh);text-align:center;
}
.auth-card.auth-loading{color:var(--muted);font-size:15px;padding:40px 20px;}
.auth-mascots{display:flex;justify-content:center;gap:6px;margin-bottom:10px;}
.auth-face{width:26px;height:26px;border-radius:50%;display:inline-block;border:2px solid rgba(0,0,0,.06);}
.auth-title{font-size:23px;margin-bottom:4px;}
.auth-sub{font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;}
.auth-badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;}
.auth-badge.server{background:var(--blue-l);color:var(--blue-d);border:1px solid #BBD6EF;}
.auth-badge.local{background:var(--amber-l);color:var(--amber-d);border:1px solid #F0D6A8;}
.auth-note{font-size:14px;color:var(--muted);text-align:left;margin:12px 0 4px;line-height:1.75;}
.auth-form{text-align:left;margin-top:16px;display:flex;flex-direction:column;gap:11px;}
.auth-field{display:block;}
.auth-field span{display:block;font-size:13px;font-weight:700;color:#6C6455;margin-bottom:5px;}
.auth-field input{
  width:100%;padding:12px 13px;font-size:16px;font-family:inherit;
  border:2px solid var(--line);border-radius:var(--r-md);background:#fff;color:var(--ink);outline:none;
}
.auth-field input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #DCEBFB;}
.auth-err{min-height:20px;font-size:13px;font-weight:700;color:var(--red);padding:0 2px;}
.auth-go{width:100%;margin-top:2px;}
.auth-go.busy{opacity:.8;}
.auth-foot{font-size:12px;color:var(--muted);text-align:center;margin-top:14px;line-height:1.7;}
/* 登录 <-> 注册 的来回切换入口 */
.auth-switch{font-size:13px;color:var(--muted);text-align:center;margin-top:14px;}
.auth-switch a{color:var(--blue-d);font-weight:800;text-decoration:none;border-bottom:2px solid #CBE2F7;}
.auth-switch a:hover{border-bottom-color:var(--blue-d);}
/* 邀请码随手校验的即时提示 */
.auth-hint{font-size:12.5px;font-weight:700;color:var(--muted);min-height:17px;margin:-4px 0 2px;line-height:1.5;}
.auth-hint.ok{color:#2E7D4F;}
.auth-hint.bad{color:var(--red);}
@media (max-width:420px){
  .auth-card{padding:18px 15px;}
  .auth-title{font-size:20px;}
}

/* ===== 账号卡片 / 修改密码弹层 ===== */
.ac-row{display:flex;align-items:center;gap:12px;margin-top:12px;}
.ac-ava{
  width:46px;height:46px;border-radius:14px;flex:0 0 auto;
  background:#8FBFE8;color:#fff;font-size:20px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.ac-info{min-width:0;}
.ac-name{font-size:17px;font-weight:800;display:flex;align-items:center;gap:7px;flex-wrap:wrap;}
.ac-tag{font-size:11px;font-weight:700;background:var(--blue-l);color:var(--blue-d);
  border:1px solid #BBD6EF;border-radius:999px;padding:2px 8px;}
.ac-sub{font-size:13px;color:var(--muted);margin-top:2px;word-break:break-all;}
.ac-sub b{color:var(--ink);}
.ac-note{margin-top:9px;}
.ac-modal{
  position:fixed;inset:0;z-index:90;background:rgba(47,53,66,.42);
  display:flex;align-items:center;justify-content:center;padding:18px;
}
.ac-modal-card{
  background:var(--bg2);border:3px solid var(--line);border-radius:var(--r-lg);
  padding:20px 18px;width:100%;max-width:400px;
}
.ac-modal-card h3{font-size:18px;margin-bottom:12px;}
.ac-modal-card .auth-field{margin-bottom:10px;}
@media (max-width:560px){
  .ac-ava{width:40px;height:40px;font-size:18px;border-radius:12px;}
  .ac-name{font-size:15px;}
  .ab-name{max-width:6em;}
  .ab-role{display:none;}
  /* 窄屏 HUD 收紧：金币/星星/语速 + 账号条都得完整露出来，不能被右边缘切掉 */
  .hud{gap:6px;}
  .hud-right{gap:6px;}
  .hud .pill{padding:4px 9px;font-size:13px;}
  .hud .pill b{font-size:14px;}
  .hud .btn.sm{padding:6px 9px;font-size:12px;}
}

/* ===== 地图顶部的账号条（我是谁 + 退出登录） ===== */
.ac-bar{
  display:flex;align-items:center;gap:9px;
  background:#fff;border:2px solid var(--line);border-radius:999px;
  padding:5px 6px 5px 6px;margin-bottom:12px;
}
.ab-ava{
  width:30px;height:30px;flex:0 0 auto;border-radius:50%;
  background:#8FBFE8;color:#fff;font-size:14px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.ab-info{display:flex;align-items:center;gap:6px;min-width:0;flex-wrap:wrap;}
.ab-name{font-size:14px;font-weight:800;max-width:9em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ab-role{font-size:11px;font-weight:700;color:var(--muted);}
.ab-out{margin-left:auto;flex:0 0 auto;}

/* 一天结束时的退出卡：说得明白一点，避免下一位同学接着上一位的账号玩 */
.ac-dayend{background:linear-gradient(180deg,#FFFDF6,#FFF6E6);}
.ac-dayend .card-title h3{font-size:17px;}

/* ===== 备案号 =====
   工信部要求：经营性/非经营性网站在页面底部展示备案号，并链接到 beian.miit.gov.cn。
   刻意做得小而淡：够核查人员一眼看到，又不抢学生的注意力。
   放在文档流里（不是 fixed），所以永远不会盖住游戏按钮。 */
.icp-bar{
  text-align:center;font-size:12px;line-height:1.6;color:#A79D8E;
  padding:10px 12px 16px;
}
.icp-bar a{color:inherit;text-decoration:none;border-bottom:1px dotted rgba(0,0,0,.22);}
.icp-bar a:hover{color:var(--blue-d);border-bottom-color:var(--blue-d);}