/* 首屏轻量随机流星 */
.hero-meteors {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-meteor {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--meteor-len, 88px);
  height: 1.5px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.18) 35%,
    rgba(255, 255, 255, 0.85) 100%
  );
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.35);
  opacity: 0;
  transform: translate3d(var(--meteor-x, 0), var(--meteor-y, 0), 0) rotate(var(--meteor-angle, 32deg));
  will-change: transform, opacity;
  animation: hero-meteor-streak var(--meteor-dur, 0.9s) linear forwards;
}

@keyframes hero-meteor-streak {
  0% {
    opacity: 0;
    transform: translate3d(var(--meteor-x, 0), var(--meteor-y, 0), 0) rotate(var(--meteor-angle, 32deg));
  }
  12% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
    transform: translate3d(
        calc(var(--meteor-x, 0) + var(--meteor-dx, 220px)),
        calc(var(--meteor-y, 0) + var(--meteor-dy, 160px)),
        0
      )
      rotate(var(--meteor-angle, 32deg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-meteors {
    display: none;
  }
}