:root{
  --wood-1:#c58b4f; --wood-2:#8a5a2c; --wood-3:#5b3a1d;
  --ink:#f5e9d8; --ink-dim:#cbb394;
  --gold:#e9c07a; --green:#7fd694; --red:#e8735a;
  --panel:rgba(38,24,14,.86);
  --panel-line:rgba(233,192,122,.28);
  --shadow:0 18px 50px rgba(0,0,0,.55);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow:hidden;background:#1b1108;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);user-select:none;-webkit-user-select:none;touch-action:none}
#stage{position:fixed;inset:0}
#view{position:absolute;inset:0;display:block;width:100%;height:100%}
.hidden{display:none!important}

/* ---------- HUD ---------- */
.hud{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;
  padding:calc(10px + env(safe-area-inset-top)) 14px 10px;pointer-events:none;
  background:linear-gradient(180deg,rgba(20,12,6,.62),rgba(20,12,6,0))}
.hud-left{pointer-events:auto}
.hud-level{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--ink-dim);letter-spacing:.5px}
.hud-level span{font-size:22px;font-weight:800;color:var(--gold);line-height:1}
.hud-level em{font-style:normal;font-size:15px;color:var(--ink)}
.hud-time{font-variant-numeric:tabular-nums;font-size:30px;font-weight:800;letter-spacing:1px;
  text-shadow:0 2px 10px rgba(0,0,0,.5);line-height:1.15}
.hud-sub{display:flex;gap:8px;font-size:12px;color:var(--ink-dim)}
.hud-sub b{color:var(--ink);font-variant-numeric:tabular-nums}
.hud-sub .sep{opacity:.4}
.hud-right{display:flex;gap:8px;pointer-events:auto}
.icon-btn{width:42px;height:42px;border-radius:14px;border:1px solid var(--panel-line);
  background:var(--panel);color:var(--ink);font-size:18px;line-height:1;cursor:pointer;
  backdrop-filter:blur(8px);transition:transform .12s ease,background .2s}
.icon-btn:hover{background:rgba(70,45,25,.9)}
.icon-btn:active{transform:scale(.92)}

/* ---------- 触屏按钮 ---------- */
.touch{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;
  padding:0 max(16px,env(safe-area-inset-left)) calc(18px + env(safe-area-inset-bottom));pointer-events:none}
.pad{position:relative;width:172px;height:132px;pointer-events:auto}
.pad-btn{position:absolute;width:58px;height:52px;border-radius:16px;border:1px solid var(--panel-line);
  background:rgba(48,30,17,.72);color:var(--gold);font-size:19px;backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .08s,background .1s}
.pad-btn.on{background:rgba(233,192,122,.42);color:#2a1a0d;transform:scale(.94)}
.pad-btn.up{top:0;left:57px}.pad-btn.down{bottom:0;left:57px}
.pad-btn.left{bottom:28px;left:0}.pad-btn.right{bottom:28px;right:0}
.pad-right{transform:scaleX(1)}
@media (max-width:520px){ .pad{width:150px;height:120px} .pad-btn{width:52px;height:46px;font-size:17px}
  .pad-btn.up,.pad-btn.down{left:49px} }
@media (max-width:360px){ .pad{width:132px;height:112px} .pad-btn{width:46px;height:42px;font-size:16px}
  .pad-btn.up,.pad-btn.down{left:43px} .pad-btn.left{bottom:24px} .pad-btn.right{bottom:24px}
  .touch{padding-left:8px;padding-right:8px} }

/* ---------- 覆盖层 ---------- */
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;
  z-index:10}
.overlay.dim{background:radial-gradient(ellipse at center,rgba(16,10,4,.55),rgba(10,6,2,.85));
  backdrop-filter:blur(3px)}
.panel{background:linear-gradient(170deg,rgba(58,38,20,.96),rgba(30,19,10,.97));
  border:1px solid var(--panel-line);border-radius:24px;box-shadow:var(--shadow);
  padding:26px 28px;max-width:min(720px,94vw);width:100%;text-align:center;
  max-height:92vh;overflow:auto}
.panel h1{margin:0;font-size:34px;letter-spacing:4px;
  background:linear-gradient(180deg,#ffe9c4,#d9a35f);-webkit-background-clip:text;background-clip:text;color:transparent}
.panel h2{margin:6px 0 10px;font-size:24px;letter-spacing:2px}
.brand-sub{margin:8px 0 20px;color:var(--ink-dim);font-size:12px;letter-spacing:3px}

.levels{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-bottom:20px}
.lv{position:relative;text-align:left;padding:12px 14px;border-radius:16px;cursor:pointer;
  border:1px solid rgba(233,192,122,.22);background:linear-gradient(160deg,rgba(120,78,38,.55),rgba(60,38,20,.6));
  transition:transform .14s ease,border-color .2s,box-shadow .2s}
.lv:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:0 10px 26px rgba(0,0,0,.4)}
.lv .n{font-size:11px;color:var(--ink-dim);letter-spacing:1px}
.lv .t{font-size:16px;font-weight:700;margin:2px 0 6px}
.lv .b{font-size:11px;color:var(--gold);font-variant-numeric:tabular-nums}
.lv .lock{position:absolute;inset:0;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:rgba(20,12,6,.72);font-size:12px;color:var(--ink-dim);letter-spacing:1px}
.lv.done{border-color:rgba(127,214,148,.45)}
.lv.done .b{color:var(--green)}
.menu-foot{display:flex;flex-direction:column;gap:14px;align-items:center}
.howto{font-size:12px;color:var(--ink-dim);line-height:1.7}
.howto b{color:var(--gold)}

/* ---------- 操作方式选择 ---------- */
.ctrl-pick{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.ctrl-label{font-size:12px;color:var(--ink-dim);letter-spacing:1px}
.seg{appearance:none;font-family:inherit;padding:8px 16px;border-radius:999px;cursor:pointer;
  border:1px solid var(--panel-line);background:rgba(255,255,255,.05);color:var(--ink-dim);
  font-size:13px;transition:background .2s,color .2s,transform .12s}
.seg:hover{background:rgba(255,255,255,.1)}
.seg:active{transform:scale(.96)}
.seg.on{background:linear-gradient(180deg,#e9c07a,#c18a45);border-color:#f0d09a;color:#2a1a0d;font-weight:700}

.btn{appearance:none;border:1px solid rgba(233,192,122,.35);background:rgba(255,255,255,.06);color:var(--ink);
  border-radius:14px;padding:12px 20px;font-size:15px;cursor:pointer;transition:transform .12s,background .2s,box-shadow .2s;
  font-family:inherit}
.btn:hover{background:rgba(255,255,255,.12)}
.btn:active{transform:scale(.96)}
.btn.primary{background:linear-gradient(180deg,#e9c07a,#c18a45);color:#2a1a0d;font-weight:800;border-color:#f0d09a;
  box-shadow:0 8px 22px rgba(233,192,122,.25)}
.btn.ghost{opacity:.8}
.btn.big{font-size:19px;padding:14px 42px}
.row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:14px}

.ready-panel{max-width:420px}
.ready-index{font-size:13px;color:var(--ink-dim);letter-spacing:3px}
.ready-panel p{color:var(--ink-dim);font-size:14px;line-height:1.7;margin:0 0 14px}
.ready-meta{font-size:13px;color:var(--gold);margin-bottom:18px}
.ready-hint{margin-top:12px;font-size:11px;color:rgba(203,179,148,.6);letter-spacing:1px}

.pause-stat{display:flex;justify-content:space-between;align-items:center;max-width:300px;margin:12px auto 4px;
  padding:12px 16px;border-radius:14px;background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.06);font-size:14px}
.pause-stat b{font-size:22px;font-variant-numeric:tabular-nums;color:var(--gold)}

.badge{display:inline-block;padding:5px 14px;border-radius:999px;background:linear-gradient(90deg,#7fd694,#4fae72);
  color:#0d2416;font-size:12px;font-weight:800;letter-spacing:2px;margin-bottom:6px;
  box-shadow:0 6px 18px rgba(127,214,148,.3)}
.result-time{font-size:46px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:2px;margin:6px 0 14px;
  color:#ffe9c4;text-shadow:0 4px 18px rgba(0,0,0,.5)}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:10px}
.result-grid>div{background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:10px 6px}
.result-grid span{display:block;font-size:11px;color:var(--ink-dim);margin-bottom:4px}
.result-grid b{font-size:15px;font-variant-numeric:tabular-nums;color:var(--ink)}
.stars{font-size:26px;letter-spacing:6px;color:#5c4526;margin-top:6px}
.stars i{font-style:normal;transition:color .3s}
.stars i.on{color:var(--gold);text-shadow:0 0 14px rgba(233,192,122,.6)}

.toast{position:absolute;left:50%;top:16%;transform:translateX(-50%);z-index:9;
  padding:10px 22px;border-radius:999px;font-size:15px;letter-spacing:1px;
  background:rgba(30,18,8,.85);border:1px solid var(--panel-line);color:var(--gold);
  box-shadow:var(--shadow);animation:pop .35s ease}
.toast.bad{color:#ffd0c4;border-color:rgba(232,115,90,.5)}
.toast.good{color:#d6ffe4;border-color:rgba(127,214,148,.5)}
@keyframes pop{from{opacity:0;transform:translate(-50%,-8px) scale(.94)}to{opacity:1;transform:translate(-50%,0) scale(1)}}

#loading .loading-inner{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--ink-dim);font-size:13px;letter-spacing:2px}
.spinner{width:42px;height:42px;border-radius:50%;border:3px solid rgba(233,192,122,.25);border-top-color:var(--gold);
  animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.shake{animation:shake .32s}
@keyframes shake{0%,100%{transform:translate(0)}25%{transform:translate(-5px,3px)}50%{transform:translate(4px,-3px)}75%{transform:translate(-3px,-2px)}}

@media (max-height:520px){
  .panel{padding:16px 18px;border-radius:18px}
  .panel h1{font-size:24px}.levels{gap:8px;margin-bottom:10px}
  .result-time{font-size:32px;margin:2px 0 8px}
}
@media (max-width:560px){
  .panel h1{font-size:26px;letter-spacing:2px}
  .hud-time{font-size:24px}
  .levels{grid-template-columns:repeat(auto-fill,minmax(132px,1fr))}
}