#intro04_con01 .sub_container {
  padding: 60px 0 100px;
}
#intro04_con01 .title {
  font-size: 35px;
  color: #1c1c1c;
  line-height: 1;
  margin-bottom: 80px;
  text-align: center;
}
#intro04_con01 .main_pic,
#intro04_con01 .thumb_pic {
  position: relative;
}
#intro04_con01 .swiper-container {
  overflow: hidden;
}

#intro04_con01 .swiper-slide img {
  touch-action: none;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}
#intro04_con01 .main_pic .swiper-slide p {
  background-color: rgba(0, 0, 0, 0.8);
  font-size: 20px;
  color: #fff;
  text-align: center;
  padding: 8px 0;
  position: absolute;
  bottom: 0;
  width: 100%;
}
#intro04_con01 .main_pic .swiper-button-prev {
  background: url(/images/middle-aged/sub/intro/intro04_prev.png) no-repeat;
  background-size: cover;
  width: 72px;
  height: 73px;
  left: var(--swiper-navigation-sides-offset, -1px);
  top: var(--swiper-navigation-top-offset, 50%);
}
#intro04_con01 .main_pic .swiper-button-next {
  background: url(/images/middle-aged/sub/intro/intro04_next.png) no-repeat;
  background-size: cover;
  width: 72px;
  height: 73px;
  right: var(--swiper-navigation-sides-offset, 0);
  top: var(--swiper-navigation-top-offset, 50%);
}
#intro04_con01 .main_pic .swiper-button-next::after,
#intro04_con01 .main_pic .swiper-button-prev::after {
  display: none;
}
#intro04_con01 .thumb_pic {
  margin-top: 40px;
}
.swiper-container.thumb_pic .swiper-wrapper {
  position: relative;
}
.swiper-container.thumb_pic .swiper-slide {
  cursor: pointer;
}
#intro04_con01 .thumb_pic .swiper-button-prev {
  background: url(/images/middle-aged/sub/intro/intro04_thumb_prev.png) no-repeat;
  background-size: cover;
  width: 22px;
  height: 42px;
  left: var(--swiper-navigation-sides-offset, 20px);
  top: var(--swiper-navigation-top-offset, 50%);
}
#intro04_con01 .thumb_pic .swiper-button-next {
  background: url(/images/middle-aged/sub/intro/intro04_thumb_next.png) no-repeat;
  background-size: cover;
  width: 22px;
  height: 42px;
  right: var(--swiper-navigation-sides-offset, 20px);
  top: var(--swiper-navigation-top-offset, 50%);
}
#intro04_con01 .thumb_pic .swiper-button-next::after,
#intro04_con01 .thumb_pic .swiper-button-prev::after {
  display: none;
}
/* .swiper-container.thumb_pic .swiper-slide {
  width: calc(100% / 5 - 1px);
} */
.swiper-container.thumb_pic .swiper-slide img {
  filter: brightness(50%); /* 기본적으로 어둡게 설정 */
  transition: filter 0.3s ease, border 0.3s ease; /* 밝기 및 테두리 효과 */
  border: 2px solid transparent; /* 기본적으로 테두리 없음 */
  cursor: pointer;
}

/* 활성화된 썸네일 이미지 스타일 */
.swiper-container.thumb_pic .swiper-slide-thumb-active {
  box-shadow: 0 0 0 3px #ff4830 inset;
}
.swiper-container.thumb_pic .swiper-slide-thumb-active img {
  filter: brightness(100%); /* 활성화되면 밝아짐 */
  box-sizing: border-box;
}

@media (max-width: 1200px) {
  #intro04_con01 .main_pic .swiper-button-prev {
    width: 52px;
    height: 53px;
  }
  #intro04_con01 .main_pic .swiper-button-next {
    width: 52px;
    height: 53px;
  }
  #intro04_con01 .thumb_pic .swiper-button-prev {
    width: 18px;
    height: 34px;
    top: var(--swiper-navigation-top-offset, 52%);
  }
  #intro04_con01 .thumb_pic .swiper-button-next {
    width: 18px;
    height: 34px;
    top: var(--swiper-navigation-top-offset, 52%);
  }
}
@media (max-width: 768px) {
  #intro04_con01 {
    margin-top: 154px;
  }
  #intro04_con01 .title {
    font-size: 28px;
    margin-bottom: 40px;
  }
  #intro04_con01 .main_pic .swiper-button-prev {
    background: url(/images/middle-aged/sub/intro/intro04_prev_mo.png) no-repeat;
    width: 32px;
    height: 33px;
    background-size: contain;
  }
  #intro04_con01 .main_pic .swiper-button-next {
    background: url(/images/middle-aged/sub/intro/intro04_next_mo.png) no-repeat;
    width: 32px;
    height: 33px;
    background-size: contain;
  }
  #intro04_con01 .thumb_pic {
    margin-top: 10px;
  }
  #intro04_con01 .main_pic .swiper-slide p {
    font-size: 15px;
    padding: 2px 0;
  }
  #intro04_con01 .thumb_pic .swiper-button-prev {
    background: url(/images/middle-aged/sub/intro/intro04_thumb_prev.png) no-repeat;
    background-size: contain;
    height: 30px;
    left: var(--swiper-navigation-sides-offset, 10px);
    top: var(--swiper-navigation-top-offset, 60%);
  }
  #intro04_con01 .thumb_pic .swiper-button-next {
    background: url(/images/middle-aged/sub/intro/intro04_thumb_next.png) no-repeat;
    background-size: contain;
    height: 30px;
    right: var(--swiper-navigation-sides-offset, 10px);
    top: var(--swiper-navigation-top-offset, 60%);
  }
}