/* bt's arcade: 手机触屏控件样式 */
canvas { touch-action: none; }

.tc-joystick {
  position: fixed;
  left: 20px;
  bottom: 20px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  z-index: 9999;
  touch-action: none;
}
.tc-knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46px;
  height: 46px;
  margin: -23px 0 0 -23px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.tc-btn {
  position: fixed;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: monospace;
  font-size: 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}
.tc-fire {
  right: 20px;
  bottom: 20px;
  width: 84px;
  height: 84px;
  background: rgba(255, 60, 60, 0.35);
}
.tc-bomb {
  right: 116px;
  bottom: 26px;
  width: 60px;
  height: 60px;
  background: rgba(255, 180, 60, 0.35);
}
.tc-pause {
  right: 20px;
  top: 20px;
  width: 44px;
  height: 44px;
}