.hero {
  width: 100%;
  background: #000;
  padding-top: 90px;
}

/* 🔥 flex 제거 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 480px;
  overflow: hidden;
}

/* 🔥 전부 겹치기 */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  opacity: 0;
  transition: opacity 0.8s ease-in-out;

  display: flex;
  align-items: center;
  justify-content: center;
}

/* 활성 */
.slide.active {
  opacity: 1;
  z-index: 2;
}

/* 이미지 */
.slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.hero {
  width: 100%;
  background: #000;
  padding-top: 90px;
}

/* flex 제거 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 480px;
  overflow: hidden;
}

/*  전부 겹치기 */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  opacity: 0;
  transition: opacity 0.8s ease-in-out;

  display: flex;
  align-items: center;
  justify-content: center;
}

/* 활성 */
.slide.active {
  opacity: 1;
  z-index: 2;
}

/* 이미지 */
.slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

@media (max-width: 768px) {

  .hero {
    margin-top: 50%; 
    padding-top: 0;
    background: #000;
  }

  .hero-slider {
    height: auto !important;   
  }

  .slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
  }

  .slide.active {
    position: relative;   
    opacity: 1;
  }

  .slide img {
    width: 100%;
    height: auto;         
    display: block;
  }

}


/* 오버레이 */
.slide .overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;

  background: linear-gradient(
    to top,
    rgba(0,0,0,0.6),
    transparent
  );

  color: #fff;
} 

/* 오버레이 */
.slide .overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;

  background: linear-gradient(
    to top,
    rgba(0,0,0,0.6),
    transparent
  );

  color: #fff;
}