:root{
  --bg:#0b1020;
  --panel:#0f1730;
  --card:#121c38;
  --text:#eaf0ff;
  --muted:#9fb0d6;
  --border:rgba(255,255,255,.10);
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --radius:16px;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:radial-gradient(1200px 600px at 20% 0%, #1b2b66 0%, var(--bg) 55%) fixed;
  color:var(--text);
}

body.hasLevelBg{
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(27,43,102,.55) 0%, rgba(11,16,32,.90) 55%),
    var(--level-bg) center/cover no-repeat fixed;
}

.app{min-height:100%;display:flex;flex-direction:column;}
.topbar{
  padding:14px 14px 10px 14px;
  display:flex;
  gap:12px;
  align-items:flex-end;
  justify-content:space-between;
}
.brand__title{font-weight:800;letter-spacing:.5px;font-size:18px;}
.brand__sub{color:var(--muted);font-size:12px;margin-top:3px;}

.hud{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;}
.hud__item{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  border-radius:12px;
  padding:8px 10px;
  min-width:78px;
  text-align:center;
}
.hud__label{font-size:11px;color:var(--muted);}
.hud__value{font-weight:800;margin-top:2px;}

.content{
  width:min(1100px, 100%);
  margin:0 auto;
  padding:10px 14px 22px 14px;
  display:grid;
  grid-template-columns: 1fr;
  gap:14px;
}

.boardWrap{
  background:transparent;
  border:none;
  border-radius:0;
  box-shadow:none;
  padding:0;
}
.boardHint{margin-top:10px;color:var(--muted);font-size:12px;text-align:center;}

.board{
  width:min(520px, 92vw);
  aspect-ratio:1/1;
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(8,1fr);
  grid-auto-rows:1fr;
  gap:8px;
  padding:10px;
  background:rgba(0,0,0,.10);
  border:none;
  border-radius:0;
  box-shadow:none;
  touch-action:manipulation;
}

.tile{
  position:relative;
  aspect-ratio:1/1;
  border-radius:0;
  border:none;
  background:transparent;
  cursor:pointer;
  user-select:none;
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  transform:translateZ(0);
  transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.tile:active{transform:scale(.97);}
.tile__icon{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
  position:relative;
  z-index:1;
}

.tile__img{
  width:100%;
  height:100%;
  object-fit:contain;
  padding:0;
  transform:scale(1.12);
  filter:drop-shadow(0 10px 18px rgba(0,0,0,.35));
  pointer-events:none;
}

.tile__img--hide{display:none;}

.tile__emoji{
  font-size:22px;
  filter:drop-shadow(0 6px 16px rgba(0,0,0,.45));
  pointer-events:none;
}

.tile__emoji--hide{display:none;}
.tile__label{
  position:absolute;
  bottom:6px;
  left:6px;
  font-size:10px;
  color:rgba(255,255,255,.70);
  pointer-events:none;
  opacity:0;
  transition:opacity .12s ease;
}

.tile--selected .tile__label{opacity:1;}

@media (hover:hover){
  .tile:hover .tile__label{opacity:1;}
}

.tile--selected{
  box-shadow:0 0 0 3px rgba(120,200,255,.35);
  transform:scale(1.03);
}

.tile--clearing{
  animation:pop .16s ease-in;
}
@keyframes pop{
  from{transform:scale(1.00);opacity:1;}
  to{transform:scale(.72);opacity:.20;}
}

.panel{display:flex;flex-direction:column;gap:12px;}
.card{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px;
}
.card__title{font-weight:800;margin-bottom:6px;}
.card__text{color:var(--muted);font-size:13px;line-height:1.5;}

.actions{display:flex;gap:10px;}
.btn{
  appearance:none;
  border:none;
  border-radius:14px;
  padding:12px 14px;
  background:linear-gradient(180deg, rgba(255,255,255,.18), rgba(255,255,255,.08));
  color:var(--text);
  font-weight:700;
  cursor:pointer;
  flex:1;
  box-shadow:
    0 18px 50px rgba(0,0,0,.35),
    inset 0 1px 0 rgba(255,255,255,.18);
}
.btn:active{transform:scale(.985);}
.btn--primary{
  background:linear-gradient(180deg,#6da4ff,#2f67ff);
  box-shadow:
    0 22px 65px rgba(25,85,255,.35),
    0 18px 50px rgba(0,0,0,.30),
    inset 0 1px 0 rgba(255,255,255,.22);
}

.toolBar{
  display:flex;
  gap:10px;
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:10px;
  box-shadow:0 18px 55px rgba(0,0,0,.25);
}
.toolBtn{
  appearance:none;
  border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(180deg, rgba(255,255,255,.14), rgba(255,255,255,.06));
  color:var(--text);
  border-radius:14px;
  padding:10px 10px;
  flex:1;
  position:relative;
  box-shadow:
    0 16px 46px rgba(0,0,0,.30),
    inset 0 1px 0 rgba(255,255,255,.16);
}
.toolBtn:active{transform:scale(.985);}
.toolBtn__icon{display:block;font-size:16px;line-height:1;}
.toolBtn__label{display:block;font-size:11px;color:rgba(255,255,255,.80);margin-top:6px;}
.toolBtn__count{
  position:absolute;
  top:6px;
  right:6px;
  min-width:20px;
  height:20px;
  padding:0 6px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  font-weight:800;
  color:#0b1020;
  background:linear-gradient(180deg,#ffd36d,#ff9c2f);
  box-shadow:0 10px 22px rgba(0,0,0,.35);
}
.toolBtn--primary{
  border-color:rgba(120,200,255,.38);
  background:linear-gradient(180deg, rgba(109,164,255,.38), rgba(47,103,255,.22));
}

.drawer{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.drawer__summary{
  list-style:none;
  cursor:pointer;
  padding:12px;
  font-weight:800;
  color:var(--text);
  user-select:none;
}
.drawer__summary::-webkit-details-marker{display:none;}
.drawer__body{padding:0 12px 12px 12px;display:flex;flex-direction:column;gap:12px;}

.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:18px;}
.modal--show{display:flex;}
.modal__mask{position:absolute;inset:0;background:rgba(0,0,0,.55);}
.modal__panel{
  position:relative;
  width:min(420px, 92vw);
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.06));
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
  padding:16px;
}
.modal__title{font-weight:900;font-size:18px;}
.modal__text{margin-top:10px;color:var(--muted);line-height:1.6;}
.modal__actions{margin-top:14px;display:flex;gap:10px;}

@media (min-width: 940px){
  .content{grid-template-columns: 1.2fr .8fr;align-items:start;}
  .board{width:520px;}
}

@media (max-width: 600px){
  .topbar{padding:10px 12px 6px 12px;align-items:center;}
  .brand__title{font-size:16px;}
  .brand__sub{display:none;}

  .hud{gap:8px;}
  .hud__item{min-width:72px;padding:7px 9px;}

  .content{
    flex:1;
    display:flex;
    flex-direction:column;
    padding:8px 10px 12px 10px;
    gap:10px;
  }

  .boardWrap{
    display:flex;
    flex-direction:column;
    align-items:center;
    padding:0;
  }

  .board{
    /* 关键：不要用flex拉伸高度，否则Safari/微信会把格子拉成长条 */
    width:min(92vw, 56vh);
    max-width:92vw;
    margin:0;
    flex:none;
    aspect-ratio:1/1;
    gap:5px;
    padding:6px;
  }

  @supports (height: 100dvh){
    .board{width:min(92vw, 56dvh);}
  }

  .tile{border-radius:0;}

  /* 移动端保持真实比例：不裁剪、不夸张放大，避免“乱七八糟/不真实” */
  .tile__img{
    object-fit:contain;
    transform:scale(1.18);
  }

  .boardHint{
    margin-top:8px;
    font-size:11px;
    opacity:.75;
    display:none;
  }

  .panel{gap:10px;}
  .actions{gap:10px;}
  .btn{padding:11px 12px;border-radius:14px;}

  .toolBar{gap:8px;}
  .toolBtn{padding:9px 9px;border-radius:14px;}
  .toolBtn__label{font-size:10px;margin-top:5px;}
}