* {
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
}
.img__box {
  font-size: 0;
  line-height: 0;
}
.landing-page {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}
.landing-page .section {
  width: 100%;
}
.landing-page .section.section__pc {
  display: block;
}
.landing-page .section.section__mobile {
  display: none;
}
@media screen and (max-width: 768px) {
  .landing-page .section {
    width: 100%;
  }
  .landing-page .section.section__pc {
    display: none;
  }
  .landing-page .section.section__mobile {
    display: block;
  }
}