:root{
  --bg:#0a0e1a;
  --panel:rgba(16,22,38,.82);
  --ink:#dfe6f3;
  --dim:#7d8797;
  --cyan:#53f5ff;
  --amber:#ffb454;
  --red:#ff5d5d;
  --mono:ui-monospace,"SF Mono","Cascadia Mono","JetBrains Mono","Courier New",monospace;
  --serif:"Songti SC","STSong","Noto Serif SC","SimSun",serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--mono);
  touch-action:manipulation;
  user-select:none;-webkit-user-select:none;
}
/* 噪点质感 */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:60;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}
#app{position:fixed;inset:0}
#game{position:absolute;inset:0;display:block}
.hidden{display:none!important}

/* 驾驶舱暗角 + 狂暴模式边框脉冲 */
#vignette{
  position:absolute;inset:0;pointer-events:none;z-index:15;
  background:radial-gradient(ellipse at 50% 45%,transparent 55%,rgba(4,6,12,.6) 100%);
}
body.overdrive #vignette{animation:odPulse .9s ease-in-out infinite}
@keyframes odPulse{50%{box-shadow:inset 0 0 130px rgba(255,180,84,.4)}}

/* ===== HUD ===== */
#hud{
  position:absolute;top:0;left:0;right:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:calc(10px + env(safe-area-inset-top)) 16px 10px;
  background:linear-gradient(to bottom,rgba(10,14,26,.85),transparent);
  pointer-events:none;
}
#hud>*{pointer-events:auto}
.hud-score{font-size:26px;font-weight:700;color:var(--cyan);text-shadow:0 0 14px rgba(83,245,255,.5);min-width:110px}
.hud-label{display:block;font-size:10px;color:var(--dim);letter-spacing:.35em}
#hud-combo{font-size:15px;color:var(--amber);text-shadow:0 0 12px rgba(255,180,84,.5);letter-spacing:.1em;min-height:20px}
#hud-combo.flash{animation:pulse .5s ease-in-out infinite}
.hud-right{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--dim)}
#hud-lives{color:var(--red);letter-spacing:.15em;font-size:15px}
#hud-time{font-variant-numeric:tabular-nums}
#btn-sound,#btn-view{
  background:none;border:1px solid rgba(125,135,151,.4);color:var(--dim);
  min-width:30px;height:30px;border-radius:6px;font-size:12px;cursor:pointer;font-family:var(--mono);
  padding:0 8px;
}
#btn-sound.off{color:#4a5160;text-decoration:line-through}

#focus-hint{
  position:absolute;left:50%;bottom:18%;transform:translateX(-50%);z-index:25;
  padding:10px 22px;border:1px solid rgba(83,245,255,.4);border-radius:999px;
  background:var(--panel);color:var(--cyan);font-size:13px;letter-spacing:.2em;
  animation:pulse 1.4s ease-in-out infinite;
  white-space:nowrap;
}
@keyframes pulse{50%{opacity:.45}}

/* 彩蛋提示浮层 */
#toast{
  position:absolute;top:16%;left:50%;transform:translateX(-50%);z-index:26;
  padding:12px 28px;border:1px solid var(--amber);border-radius:8px;
  background:rgba(20,16,6,.9);color:var(--amber);font-size:14px;letter-spacing:.25em;
  box-shadow:0 0 30px rgba(255,180,84,.3);
  animation:rise .5s cubic-bezier(.2,.8,.2,1) both;
  white-space:nowrap;
}

/* 开局倒计时 3 · 2 · 1 · GO */
#countdown{
  position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);
  z-index:28;pointer-events:none;opacity:0;
  font-family:var(--serif);font-weight:900;
  font-size:clamp(110px,24vw,210px);letter-spacing:.05em;
  color:var(--cyan);text-shadow:0 0 46px rgba(83,245,255,.55);
}
#countdown.go{color:var(--amber);text-shadow:0 0 52px rgba(255,180,84,.65)}
#countdown.show{animation:cdPop .72s ease-out both}
@keyframes cdPop{
  0%{opacity:0;transform:translate(-50%,-50%) scale(1.8)}
  16%{opacity:1;transform:translate(-50%,-50%) scale(1)}
  72%{opacity:1}
  100%{opacity:0;transform:translate(-50%,-50%) scale(.9)}
}

/* ===== 左侧：下一波预告 ===== */
#wave-panel{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);z-index:18;
  padding:12px 14px;min-width:150px;max-width:220px;
  border:1px solid rgba(83,245,255,.22);border-radius:8px;
  background:var(--panel);pointer-events:none;
}
.wp-title{font-size:11px;color:var(--dim);letter-spacing:.22em;margin-bottom:9px}
.wp-title b{color:var(--cyan);font-size:13px}
.wp-row{display:flex;align-items:center;gap:8px;padding:3px 0;font-size:12px}
.wp-row i{
  flex:none;border-radius:50%;
  background:radial-gradient(circle at 32% 30%,#8f9ab5,#4a5266 62%,#333a4c);
  box-shadow:inset -2px -3px 4px rgba(0,0,0,.55),0 0 6px rgba(83,245,255,.12);
}
.wp-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wp-row b{margin-left:auto;padding-left:6px;color:var(--amber);font-weight:700;font-size:11px}
.wp-empty{padding:6px 0;font-size:11px;color:#4a5160;letter-spacing:.2em;text-align:center}
.wp-row.gold span{color:#ffd65a}
.wp-row.gold i{
  background:radial-gradient(circle at 32% 30%,#ffe08a,#a97d1e 62%,#6b4c0d);
  box-shadow:inset -2px -3px 4px rgba(0,0,0,.5),0 0 8px rgba(255,180,84,.35);
}

/* ===== 3D 场景叠加层：单词标签 / 浮字 / 中文释义 ===== */
#labels{position:absolute;inset:0;pointer-events:none;z-index:12;overflow:hidden}
.word-label{
  position:absolute;left:0;top:0;white-space:nowrap;font-weight:600;
  transform:translate(-50%,-100%);will-change:transform,font-size;
  text-shadow:0 1px 6px rgba(0,0,0,.7);
}
.word-label .typed{color:var(--cyan)}
.word-label .err{color:var(--red)}
.word-label .rest{color:rgba(223,230,243,.82)}
.word-label .next{color:rgba(223,230,243,.82);border-bottom:2px solid var(--cyan)}
.word-label.gold .typed{color:#ffd65a}
.word-label.gold .next{border-bottom-color:#ffd65a}
.floater{
  position:absolute;transform:translate(-50%,-50%);
  font-weight:700;font-size:17px;color:var(--cyan);
  text-shadow:0 1px 8px rgba(0,0,0,.6);
  animation:floatUp 1.1s ease-out forwards;
}
@keyframes floatUp{to{transform:translate(-50%,-170%);opacity:0}}
#meaning{
  position:absolute;left:50%;top:34%;transform:translate(-50%,-50%);
  z-index:14;pointer-events:none;opacity:0;
  font-family:var(--serif);font-weight:900;
  font-size:clamp(30px,7.5vw,58px);letter-spacing:.25em;text-indent:.25em;
  color:#fff;text-shadow:0 0 26px rgba(83,245,255,.55);
}
#meaning.gold{color:#ffd65a;text-shadow:0 0 30px rgba(255,214,90,.65)}
#meaning.show{animation:meaningPop 1.15s ease-out both}
@keyframes meaningPop{
  0%{opacity:0;transform:translate(-50%,-50%) scale(.7)}
  18%{opacity:1;transform:translate(-50%,-50%) scale(1.06)}
  30%{transform:translate(-50%,-50%) scale(1)}
  72%{opacity:1}
  100%{opacity:0;transform:translate(-50%,-62%) scale(1)}
}

/* ===== 屏幕通用 ===== */
.screen{
  position:absolute;inset:0;z-index:30;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:24px;
  background:radial-gradient(ellipse at 50% 120%,rgba(20,32,64,.55),rgba(10,14,26,.88));
  overflow-y:auto;
}
.screen>*{animation:rise .7s cubic-bezier(.2,.8,.2,1) both}
.screen>*:nth-child(1){animation-delay:.05s}
.screen>*:nth-child(2){animation-delay:.14s}
.screen>*:nth-child(3){animation-delay:.23s}
.screen>*:nth-child(4){animation-delay:.32s}
.screen>*:nth-child(5){animation-delay:.41s}
.screen>*:nth-child(6){animation-delay:.5s}
.screen>*:nth-child(7){animation-delay:.59s}
@keyframes rise{from{opacity:0;transform:translateY(26px)}}

.caps{font-size:12px;letter-spacing:.6em;color:var(--cyan);text-transform:uppercase;margin-bottom:14px}
h1{
  font-family:var(--serif);font-size:clamp(40px,9vw,72px);font-weight:900;
  letter-spacing:.08em;line-height:1.15;cursor:default;
  text-shadow:0 0 30px rgba(83,245,255,.35);
}
h1 em{font-style:normal;color:var(--cyan)}
.tagline{margin-top:16px;color:var(--dim);font-size:13px;letter-spacing:.25em;line-height:2}
.best{margin-top:22px;font-size:13px;color:var(--amber);letter-spacing:.15em}

.btn{
  margin-top:30px;padding:16px 54px;cursor:pointer;
  font-family:var(--mono);font-size:16px;letter-spacing:.4em;text-indent:.4em;color:var(--cyan);
  background:rgba(83,245,255,.06);border:1px solid var(--cyan);border-radius:4px;
  box-shadow:0 0 24px rgba(83,245,255,.18),inset 0 0 18px rgba(83,245,255,.06);
  transition:all .2s;
}
.btn:hover{background:rgba(83,245,255,.16);box-shadow:0 0 36px rgba(83,245,255,.35)}
.btn:active{transform:scale(.96)}
.btn.ghost{border-color:rgba(125,135,151,.5);color:var(--dim);box-shadow:none;font-size:13px;padding:13px 34px}
.btn.amber{border-color:var(--amber);color:var(--amber);background:rgba(255,180,84,.06);box-shadow:0 0 24px rgba(255,180,84,.15)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.btn-row .btn{margin-top:16px}

.howto{margin-top:26px;font-size:12px;color:var(--dim);letter-spacing:.12em;line-height:2.1}

/* ===== 词库面板 ===== */
details{margin-top:26px;width:min(520px,92vw);text-align:left}
summary{
  cursor:pointer;list-style:none;text-align:center;
  font-size:12px;color:var(--dim);letter-spacing:.3em;padding:8px;
  border:1px dashed rgba(125,135,151,.35);border-radius:4px;
}
summary::-webkit-details-marker{display:none}
.lib-body{margin-top:12px;padding:16px;border:1px solid rgba(125,135,151,.2);border-radius:6px;background:var(--panel)}
.lib-status{font-size:12px;color:var(--amber);letter-spacing:.1em;margin-bottom:10px}
#lib-text{
  width:100%;height:110px;resize:vertical;padding:10px;
  background:rgba(10,14,26,.8);color:var(--ink);border:1px solid rgba(125,135,151,.3);border-radius:4px;
  font-family:var(--mono);font-size:12px;line-height:1.7;
}
.lib-actions{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap;align-items:center}
.lib-actions .btn{margin-top:0;padding:9px 18px;font-size:12px;letter-spacing:.15em}
.lib-file{font-size:12px;color:var(--dim);cursor:pointer;text-decoration:underline}
.lib-note{font-size:11px;color:#4a5160;margin-top:10px;line-height:1.8}

/* ===== 结算屏 ===== */
h2{font-family:var(--serif);font-size:clamp(30px,7vw,46px);letter-spacing:.12em;color:var(--red);text-shadow:0 0 26px rgba(255,93,93,.35)}
.rank{
  margin-top:14px;font-family:var(--serif);font-size:clamp(26px,6vw,38px);
  color:var(--amber);text-shadow:0 0 22px rgba(255,180,84,.4);letter-spacing:.15em;
}
.record{
  margin-top:10px;padding:4px 16px;border:1px solid var(--amber);border-radius:999px;
  color:var(--amber);font-size:11px;letter-spacing:.35em;animation:pulse 1.2s infinite;
}
.egg-line{margin-top:12px;color:var(--amber);font-size:14px;letter-spacing:.2em}
.stats{
  margin-top:24px;display:grid;grid-template-columns:repeat(3,minmax(90px,130px));gap:12px;
}
.stat{padding:12px 6px;border:1px solid rgba(125,135,151,.2);border-radius:6px;background:var(--panel)}
.stat b{display:block;font-size:22px;color:var(--cyan);font-weight:700;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:5px;font-size:10px;color:var(--dim);letter-spacing:.25em}
#card-preview{
  margin-top:22px;width:min(240px,58vw);border-radius:8px;
  border:1px solid rgba(83,245,255,.25);box-shadow:0 8px 40px rgba(0,0,0,.5);
}

/* 隐藏输入框（手机键盘唤起用） */
#typer{
  position:fixed;bottom:4px;left:50%;transform:translateX(-50%);
  width:10px;height:30px;opacity:.01;border:none;outline:none;
  font-size:16px;z-index:10;caret-color:transparent;background:transparent;color:transparent;
}

@media (max-width:560px){
  .stats{grid-template-columns:repeat(3,minmax(80px,1fr));width:92vw}
  .hud-score{font-size:21px;min-width:86px}
}