:root{
  --bg1:#1b1056; --bg2:#3a1c71; --bg3:#5f0a87; --accent:#ffd166; --accent2:#06d6a0;
  --pink:#ff6b9d; --blue:#4cc9f0; --good:#06d6a0; --bad:#ef476f; --text:#fff;
  --panel:rgba(28,18,72,.92);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;overflow:hidden;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Comic Sans MS",system-ui,sans-serif;
  color:var(--text);
  background:radial-gradient(circle at 30% 20%,var(--bg3),transparent 60%),
             radial-gradient(circle at 80% 80%,var(--bg2),transparent 55%),
             linear-gradient(160deg,var(--bg1),#0d0726);
  user-select:none;
}
#app{position:relative;width:100vw;height:100vh;overflow:hidden;}
#game{position:absolute;inset:0;width:100%;height:100%;display:block;}
.hidden{display:none !important;}

/* ---------- HUD ---------- */
#hud{
  position:absolute;top:0;left:0;right:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 18px;gap:10px;
  background:linear-gradient(180deg,rgba(13,7,38,.85),rgba(13,7,38,0));
  pointer-events:none;
}
#hud .icon-btn{pointer-events:auto;}
.hud-left,.hud-right{display:flex;align-items:center;gap:14px;}
.hud-stat{font-size:16px;opacity:.95;}
.hud-stat b{color:var(--accent);font-size:20px;}
.hearts{display:flex;gap:4px;font-size:24px;filter:drop-shadow(0 2px 3px rgba(0,0,0,.4));}
.hud-center{text-align:center;}
.target-label{font-size:13px;opacity:.85;}
.target-char{
  font-size:46px;font-weight:800;line-height:1;
  color:#fff;text-shadow:0 0 14px var(--accent),0 3px 0 rgba(0,0,0,.3);
  background:linear-gradient(180deg,#fff,var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.target-pinyin{font-size:15px;color:var(--accent);font-weight:700;letter-spacing:1px;}
.icon-btn{
  background:rgba(255,255,255,.15);border:none;color:#fff;font-size:20px;
  width:42px;height:42px;border-radius:50%;cursor:pointer;transition:.15s;
}
.icon-btn:hover{background:rgba(255,255,255,.3);transform:scale(1.08);}

/* ---------- Overlays ---------- */
.overlay{
  position:absolute;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;
  background:rgba(8,4,24,.55);backdrop-filter:blur(4px);padding:16px;
}
.overlay.soft{background:rgba(8,4,24,.35);}
.panel{
  width:min(460px,92vw);
  background:var(--panel);
  border:2px solid rgba(255,255,255,.12);
  border-radius:26px;padding:26px 24px;text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.5),inset 0 0 30px rgba(255,255,255,.04);
  animation:pop .35s cubic-bezier(.2,1.3,.5,1);
}
@keyframes pop{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.title{font-size:34px;margin-bottom:4px;text-shadow:0 0 18px var(--pink);}
.subtitle{opacity:.85;margin-bottom:18px;font-size:15px;}
.big-emoji{font-size:64px;margin-bottom:6px;animation:bounce 1.2s infinite;}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.field{margin:14px 0;text-align:left;}
.field-label{font-size:14px;opacity:.8;margin-bottom:8px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  border:2px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  color:#fff;padding:9px 16px;border-radius:999px;font-size:15px;cursor:pointer;transition:.15s;
}
.chip:hover{background:rgba(255,255,255,.16);}
.chip.active{
  background:linear-gradient(135deg,var(--accent),var(--pink));border-color:transparent;
  color:#2a1740;font-weight:800;box-shadow:0 6px 16px rgba(255,107,157,.4);
}
.switch{display:flex;align-items:center;gap:8px;font-size:15px;margin:7px 0;cursor:pointer;}
.switch input{width:18px;height:18px;accent-color:var(--accent2);}
.big-btn{
  margin-top:18px;width:100%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--accent2),var(--blue));color:#06281f;
  font-size:21px;font-weight:800;padding:14px;border-radius:16px;
  box-shadow:0 10px 24px rgba(6,214,160,.4);transition:.15s;
}
.big-btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(6,214,160,.55);}
.big-btn:active{transform:translateY(1px);}
.ghost-btn{
  margin-top:10px;width:100%;border:2px solid rgba(255,255,255,.25);background:transparent;
  color:#fff;font-size:16px;padding:11px;border-radius:14px;cursor:pointer;
}
.ghost-btn:hover{background:rgba(255,255,255,.1);}
.hint{margin-top:14px;font-size:13px;opacity:.7;line-height:1.5;}

/* 飘字反馈 */
.float-text{
  position:absolute;z-index:8;font-weight:800;font-size:26px;pointer-events:none;
  text-shadow:0 2px 6px rgba(0,0,0,.4);animation:floatUp .9s ease-out forwards;
}
@keyframes floatUp{from{transform:translateY(0);opacity:1}to{transform:translateY(-60px);opacity:0}}