:root {
  --main-color: #006eff;
  --prev-color: #fcee21;
  --next-color: #53b3ab;
}

@media (max-width: 768px) {
  .head_area {
    padding-left: 5rem;
  }
}
@media (max-width: 768px) {
  .head_area::before {
    left: 3rem;
  }
}

.head_image {
  bottom: 0;
}
@media (min-width: 769px) {
  .head_image {
    width: 9rem;
    left: -1.6rem;
  }
}
@media (max-width: 768px) {
  .head_image {
    width: 5.8rem;
    left: -1.1rem;
  }
}
.head_image img {
  object-position: left bottom;
}

@media (min-width: 769px) {
  .image_area.img1 {
    width: 59rem;
    margin-top: -1rem;
  }
}
@media (max-width: 768px) {
  .image_area.img1 {
    width: 29.7rem;
    margin-top: 2rem;
  }
}
@media (min-width: 769px) {
  .image_area.img2 {
    width: 59.2rem;
    margin-top: -4rem;
  }
}
@media (max-width: 768px) {
  .image_area.img2 {
    width: 29.7rem;
    margin-top: 2rem;
  }
}
@media (min-width: 769px) {
  .image_area.img3 {
    width: 62.8rem;
    margin-top: -4rem;
  }
}
@media (max-width: 768px) {
  .image_area.img3 {
    width: 29.7rem;
    margin-top: 2rem;
  }
}