.concept {
  position: relative;
  padding: 40px 21px 10px;
}

.concept::before,
.concept::after {
  position: absolute;
  content: "";
  display: block;
}

.concept::before {
  width: 320px;
  height: 546px;
  background-image: url(../images/common/page-decor-1.webp);
  background-size: contain;
  background-repeat: no-repeat;
  top: 0;
  right: 0;
  z-index: -1;
}

.concept::after {
  width: 202px;
  height: 800px;
  background-image: url(../images/common/page-decor-2.webp);
  background-size: contain;
  left: 0;
  bottom: 0;
  z-index: -1;
  background-repeat: no-repeat;
}

.concept-title {
  font-size: 24px;
  line-height: 36px;
  font-family: "M PLUS Rounded 1c", sans-serif;
  text-align: center;
}

.concept-description {
  margin: 20px auto 80px;
}

.concept-container {
  margin: 40px auto 52px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.concept-item__image {
  border-radius: 80px;
  display: block;
  width: 100%;
  max-width: 320px;
  aspect-ratio: 320 / 569;
  /* height: auto; */
  margin: 0 auto;
  object-fit: cover;
}

.concept-item__content {
  margin: 20px auto 0;
}

.concept-item__title {
  font-size: 20px;
  line-height: 32px;
  font-family: "M PLUS Rounded 1c", sans-serif;
  font-weight: 600;
}

.concept-item__text {
  margin-top: 20px;
}

@media (min-width: 768px) {
  .concept {
    padding: 0px 30px 10px;
  }

  .concept::before {
    width: 49%;
    max-width: 939px;
    aspect-ratio: 939 / 1600;
    height: auto;
    background-repeat: no-repeat;
    background-position: right top;
  }

  .concept::after {
    width: 21%;
    max-width: 403px;
    height: auto;
    aspect-ratio: 403 / 1600;
    background-repeat: no-repeat;
    background-position: left bottom;
  }

  .concept-title {
    font-size: 32px;
    line-height: 36px;
    font-family: "M PLUS Rounded 1c", sans-serif;
    text-align: center;
    max-width: 936px;
    margin: 0 auto;
    padding: 0;
  }

  .concept-description {
    margin: 25px auto 146px;
    max-width: 936px;
    text-align: center;
    padding: 0 100px;
  }

  .concept > .fadeInUp:first-child {
    padding-top: 120px;
  }

  .concept-container {
    margin: 93px auto 133px;
    display: flex;
    flex-direction: column;
    gap: 80px;
    max-width: 936px;
  }

  .concept-item {
    display: flex;
    flex-direction: row;
    gap: min(72px, max(32px, calc(72px + 50vw - 510px)));
  }

  .concept-item:nth-child(odd) {
    flex-direction: row-reverse;
  }

  .concept-item__image {
    aspect-ratio: 432 / 768;
    width: calc(50% - 72px);
    max-width: 432px;
    flex: 1;
  }

  .concept-item--room .concept-item__image {
    object-position: 15% bottom;
  }

  .concept-item__content {
    margin: 72px auto 0;
    flex: 1;
  }

  .concept-item__text {
    margin-top: 24px;
  }

  .concept-item__title {
    font-size: 24px;
  }
}