/* 星空背景 */
#starfield-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

#starfield-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #0a0a2a 0%, #000000 100%);
}