:root{
  color-scheme:light;
  --ink:#172033;
  --muted:#64748b;
  --line:#e2e8f0;
  --card:#ffffff;
  --soft:#f6f7fb;
}
*{box-sizing:border-box}
html,body{min-height:100%;overscroll-behavior:none;overflow-x:hidden}
body{
  margin:0;
  font-family:Inter,"Microsoft YaHei","PingFang SC",Arial,sans-serif;
  color:var(--ink);
  background:
    linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.72)),
    radial-gradient(circle at 10% 8%,color-mix(in srgb,var(--accent) 23%,transparent),transparent 28%),
    radial-gradient(circle at 90% 16%,color-mix(in srgb,var(--hot) 20%,transparent),transparent 28%),
    var(--paper);
}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
.topbar{
  position:sticky;
  top:0;
  z-index:20;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:12px clamp(14px,4vw,42px);
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900}
.brand-mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--hot));
  border-radius:8px;
}
.top-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.top-actions a,.top-actions button,.controls button{
  min-height:38px;
  padding:0 12px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:8px;
}
.top-actions a:hover,.top-actions button:hover,.controls button:hover{border-color:color-mix(in srgb,var(--accent) 60%,var(--line))}
.game-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 310px;
  gap:14px;
  width:min(1180px,calc(100% - 28px));
  margin:14px auto 34px;
}
.stage-panel,.side-card,.ad-slot,.controls{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 14px 32px rgba(15,23,42,.08);
}
.stage-panel{overflow:hidden}
.game-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
}
.game-head p{margin:0 0 6px;color:var(--muted);font-weight:800;font-size:13px}
.game-head h1{margin:0;font-size:clamp(24px,4vw,38px);line-height:1.1;letter-spacing:0}
.game-head>span{
  flex:0 0 auto;
  padding:8px 10px;
  color:#fff;
  background:var(--accent);
  border-radius:8px;
  font-weight:900;
}
.hud{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  border-bottom:1px solid var(--line);
  background:#fff;
}
.hud div{padding:9px 10px;border-right:1px solid var(--line)}
.hud div:last-child{border-right:0}
.hud span{display:block;color:var(--muted);font-size:12px}
.hud strong{display:block;margin-top:2px;font-size:20px}
.canvas-wrap{position:relative;background:#fff;touch-action:none}
canvas{
  display:block;
  width:100%;
  height:min(66vh,620px);
  min-height:430px;
  touch-action:none;
}
.overlay{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  padding:20px;
  text-align:center;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(6px);
  cursor:pointer;
}
.overlay.hidden{display:none}
.overlay-box{
  max-width:520px;
  padding:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 20px 42px rgba(15,23,42,.12);
}
.overlay-box strong{display:block;margin-bottom:8px;font-size:28px}
.overlay-box p{margin:0;color:var(--muted);line-height:1.7}
.info-panel{display:grid;gap:12px;align-self:start}
.controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:12px}
.controls .primary{color:#fff;background:var(--ink);border-color:var(--ink);font-weight:900}
.side-card{padding:14px}
.side-card h2{margin:0 0 10px;font-size:18px}
.side-card p{margin:0 0 8px;color:var(--ink);line-height:1.65}
.muted{color:var(--muted)!important}
.rank-list{margin:0;padding-left:22px;color:var(--muted);line-height:1.7}
.ad-slot{
  display:grid;
  gap:6px;
  padding:14px;
  background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 16%,white),color-mix(in srgb,var(--hot) 14%,white));
  border-style:dashed;
}
.ad-slot span{color:var(--muted);font-size:12px}
.ad-slot p{margin:0;color:var(--muted);line-height:1.5}
@media(max-width:900px){
  body{padding-bottom:86px}
  .topbar{position:static;align-items:flex-start;flex-direction:column;padding:9px 10px}
  .brand-mark{width:32px;height:32px}
  .top-actions{width:100%}
  .top-actions a,.top-actions button{flex:1;min-height:34px;padding:0 8px;text-align:center;font-size:13px}
  .game-shell{grid-template-columns:1fr;width:100%;margin-top:0;gap:8px}
  .stage-panel{border-left:0;border-right:0;border-radius:0}
  .game-head{padding:9px 10px;align-items:center}
  .game-head p{font-size:11px;margin-bottom:3px}
  .game-head h1{font-size:22px}
  .game-head>span{padding:6px 8px;font-size:12px}
  .hud div{padding:6px 4px;text-align:center}
  .hud span{font-size:10px}
  .hud strong{font-size:16px}
  canvas{height:min(47svh,390px);min-height:270px}
  .info-panel{padding:0 10px 10px}
  .controls{
    position:fixed;
    left:10px;
    right:10px;
    bottom:calc(env(safe-area-inset-bottom) + 8px);
    z-index:30;
    grid-template-columns:repeat(4,minmax(0,1fr));
    padding:8px;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(14px);
  }
  .controls button{min-height:44px;padding:0 6px;font-size:14px}
}
@media(max-width:420px){
  .hud strong{font-size:15px}
  .game-head h1{font-size:20px}
}
@media(max-width:900px) and (max-height:430px) and (orientation:landscape){
  body{padding-bottom:0}
  canvas{height:min(42vh,230px);min-height:150px}
  .controls{
    position:static;
    left:auto;
    right:auto;
    bottom:auto;
    margin:0 10px;
    box-shadow:none;
  }
  .controls button{min-height:40px}
}