body.no-scroll {
  overflow: hidden; /* 禁止滾動 */
}

/* =============== States / Interaction =============== */
.pollution-section .pollution-card {
  transition: transform .25s ease, box-shadow .25s ease;
}

.pollution-section .pollution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.pollution-section .pollution-card img {
  transition: transform .35s ease;
}

.pollution-section .pollution-card:hover img {
  transform: scale(1.06);
}

.pollution-section .pollution-info {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  transition: background .3s ease;
}

.pollution-section .pollution-card:hover .pollution-info {
  background: rgba(255, 255, 255, 0.96);
}