* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background: #050505;
  overflow: hidden;
  cursor: crosshair;
}
canvas {
  display: block;
}
.hint {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
  letter-spacing: 3px;
  pointer-events: none;
  z-index: 10;
}

#transparent-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0); /* 半透明黑色 */
    z-index: 11; /* 确保它在其他元素之上 */
}