/* 核心星星样式 */
.star {
  position: fixed;
  width: 12px;
  height: 12px;
  pointer-events: none;
  z-index: 9999;
  animation: starGlow 3s ease-in-out infinite;
}
 
.star::before {
  width: 200%;
  height: 2px;
  left: -50%;
  top: 45%;
}
 
.star::after {
  width: 2px;
  height: 200%;
  left: 45%;
  top: -50%;
}
 
/* 中心光点 */
.star span {
  position: absolute;
  width: 30%;
  height: 30%;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  left: 35%;
  top: 35%;
}
 
@keyframes starGlow {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.5) rotate(15deg); }
}