.background-section {
  position: relative;
  height: auto;
  overflow: visible;
}

.background-section .image-section {
  position: relative;
  height: 100%;
  width: 100%;
  padding-top: 77px;
  padding-bottom: 77px;
  color: white;
}

.background-section .bg-img,
.background-section .overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.background-section .overlay {
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

@media (max-width: 1300px) {
  .background-section {
    height: auto;
  }
  #main-section6 .container {
    margin-top: 77px !important; /* 이건 ID 유지 필요 */
  }
}