:root{
  /* 黄金矿工主题：暖金 + 棕岩 + 亮晶晶矿石 */
  --bg1:#4a2f15; --bg2:#6b4423; --bg3:#8f5e2d; --accent:#ffd166; --accent2:#06d6a0;
  --pink:#ff6b9d; --blue:#4cc9f0; --good:#06d6a0; --bad:#ef476f; --text:#fff;
  --panel:rgba(58,36,16,.94);
}
*{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 20% 10%,#9c6b32,transparent 50%),
             radial-gradient(circle at 90% 90%,#5a3a1a,transparent 50%),
             linear-gradient(170deg,#4a2f15,#1c1006);
  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;}

/* ---------- 顶部目标板 ---------- */
#topHud{
  position:absolute;top:0;left:0;right:0;z-index:5;
  display:flex;align-items:flex-start;justify-content:space-between;
  padding:10px 14px;gap:10px;
  background:linear-gradient(180deg,rgba(28,16,6,.85),rgba(28,16,6,.35) 80%,rgba(28,16,6,0));
  pointer-events:none;
}
#topHud .icon-btn{pointer-events:auto;}
.target-board{
  pointer-events:auto;
  background:linear-gradient(180deg,#caa15f,#8a5a28);
  border:3px solid #5b3a18;
  border-radius:18px;
  padding:8px 22px 10px;
  box-shadow:0 8px 24px rgba(0,0,0,.35),inset 0 0 20px rgba(255,240,200,.2);
  text-align:center;
  min-width:min(170px,34vw);
}
.target-label{font-size:12px;color:#3a2410;font-weight:700;opacity:.9;white-space:nowrap;}
.target-char{font-size:52px;font-weight:900;color:#2a1708;line-height:1;text-shadow:0 2px 0 rgba(255,255,255,.25);}
.target-pinyin{font-size:14px;color:#3a2410;font-weight:700;min-height:18px;}
.top-right-btns{display:flex;gap:8px;align-items:flex-start;pointer-events:auto;}
.icon-btn{
  background:rgba(255,255,255,.18);border:2px solid rgba(255,255,255,.25);
  color:#fff;font-size:18px;width:40px;height:40px;border-radius:50%;
  cursor:pointer;transition:.15s;backdrop-filter:blur(4px);
}
.icon-btn:hover{background:rgba(255,255,255,.32);transform:scale(1.08);}

/* ---------- 红心条 ---------- */
#heartBar{
  position:absolute;top:96px;left:50%;transform:translateX(-50%);z-index:5;
  background:rgba(28,16,6,.72);padding:5px 16px;border-radius:999px;
  box-shadow:0 4px 14px rgba(0,0,0,.35);
}
.hearts{display:flex;gap:5px;font-size:24px;filter:drop-shadow(0 2px 3px rgba(0,0,0,.4));}
.heart{display:inline-block;color:#ff3b5c;font-size:24px;line-height:1;font-variant-emoji:text;transition:color .2s,opacity .2s;}
.hearts .heart.lost{color:#9aa0a6;opacity:.85;}

/* ---------- 底部任务条 ---------- */
#hud{
  position:absolute;bottom:0;left:0;right:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
  gap:12px;
  background:linear-gradient(0deg,rgba(28,16,6,.92),rgba(28,16,6,.55) 70%,rgba(28,16,6,0));
  pointer-events:none;
}
.mission-left,.mission-right{display:flex;align-items:center;gap:6px;font-size:15px;}
.mission-left b,.mission-right b{color:var(--accent);font-size:20px;}
.mission-center{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;max-width:min(320px,46vw);}
.mission-label{font-size:11px;opacity:.85;}
.mission-bar{width:100%;height:10px;background:rgba(255,255,255,.18);border-radius:999px;overflow:hidden;border:1px solid rgba(255,255,255,.12);}
.mission-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .35s ease;border-radius:999px;}
.mission-count{font-size:12px;opacity:.9;}
.combo{margin-left:10px;color:var(--good);}

/* 手机端微调 */
@media (max-width:600px){
  #topHud{padding:8px 10px;}
  .target-board{padding:6px 14px 8px;min-width:120px;}
  .target-char{font-size:42px;}
  .target-label{font-size:11px;}
  .icon-btn{width:34px;height:34px;font-size:15px;}
  #heartBar{top:82px;padding:4px 12px;}
  .hearts{font-size:20px;}
  #hud{padding:8px 10px calc(8px + env(safe-area-inset-bottom, 0px));gap:8px;}
  .mission-left,.mission-right{font-size:13px;}
  .mission-left b,.mission-right b{font-size:16px;}
  .mission-center{max-width:50vw;}
  .combo{display:none;}
}

/* ---------- Overlays ---------- */
.overlay{
  position:absolute;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;
  background:rgba(20,10,2,.6);backdrop-filter:blur(4px);padding:16px;
}
.overlay.soft{background:rgba(20,10,2,.38);}
.panel{
  width:min(460px,92vw);
  background:var(--panel);
  border:2px solid rgba(255,209,102,.25);
  border-radius:26px;padding:26px 24px;text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.5),inset 0 0 30px rgba(255,209,102,.05);
  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(--accent);}
.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:#3a2410;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}}

/* ---------- 宝箱 ---------- */
.panel.wide{width:min(560px,94vw);}
#gemList{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:12px;margin:16px 0 6px;
}
.gem-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:16px;padding:12px 10px;text-align:center;
}
.gem-emoji{font-size:40px;line-height:1;}
.gem-name{font-size:15px;font-weight:800;margin-top:4px;}
.gem-count{font-size:13px;opacity:.85;margin-top:4px;min-height:18px;}
.merge-btn{
  margin-top:8px;width:100%;border:none;cursor:pointer;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--pink));color:#3a2410;
  font-weight:800;font-size:13px;padding:8px;
}
.merge-btn.disabled{
  background:rgba(255,255,255,.1);color:rgba(255,255,255,.6);cursor:default;font-weight:600;
}
.merge-btn:not(.disabled):hover{filter:brightness(1.08);transform:translateY(-1px);}

/* 奖励飘条 */
.reward-toast{
  position:absolute;top:18px;left:50%;transform:translate(-50%,-30px);
  z-index:20;padding:12px 22px;border-radius:999px;
  background:linear-gradient(135deg,#ffd166,#ff6b9d);color:#3a2410;font-weight:800;font-size:17px;
  box-shadow:0 10px 30px rgba(0,0,0,.45);opacity:0;transition:.35s ease;
  pointer-events:none;white-space:nowrap;
}
.reward-toast.show{opacity:1;transform:translate(-50%,0);}