.header {
  padding: 24px 0;
}

.header > div {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  font-weight: 700;
}

.inner {
  padding: 0 20px;
}

.logo img {
  width: 144px;
  vertical-align: middle;
}

.language {
  font-size: 2rem;
}

.main_visual {
  background-image: url("/image/main-visual-sp.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  width: 100vw;
  margin: 0 calc(50% - 50vw);
}

.heading {
  padding: 300px 24px 20px;
  font-size: var(--little-huge-font-size);
  font-weight: 700;
  line-height: 1.1;
}

.content {
  margin: 72px auto 112px;
}

.content section + section {
  margin-top: 72px;
}

.subHeading {
  color: var(--main-color);
  font-size: var(--large-font-size);
  font-weight: 700;
  line-height: 1.1;
}

.definition_list {
  margin-top: 32px;
}

.definition_list > div {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.definition_list dt {
  font-weight: 700;
  min-width: 110px;
}

.definition_list dd {
  margin-left: 16px;
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
}

.definition_list a {
  display: inline-block;
  text-decoration: underline;
  -webkit-text-decoration-skip-ink: none;
  text-decoration-skip-ink: none;
}

.definition_list div + a {
  margin-top: 8px;
}

.footer {
  padding: 20px 0;
  background: var(--main-color);
  text-align: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.footer small {
  font-size: var(--small-font-size);
}

.follow_up_button {
  position: fixed;
  right: 20px;
  bottom: 24px;
}

.follow_up_button button {
  padding: 15px 16px;
  background: var(--main-color);
  border-radius: 24px;
  font-weight: 700;
  cursor: pointer;
}

@media screen and (min-width: 520px) {
  .inner {
    padding: 0 50px;
    position: relative;
  }

  .main_visual {
    margin: 0 auto;
    background-image: url("/image/main-visual.png");
    background-size: cover;
    width: 100%;
  }

  .follow_up_button {
    top: 454px;
    right: 60px;
  }

  .follow_up_button button {
    padding: 45px 20px;
    width: 142px;
    height: 142px;
    border-radius: 50%;
    font-size: 2.2rem;
    text-align: center;
  }
}

@media screen and (min-width: 1024px) {
  .header {
    padding: 40px 0;
  }

  .inner {
    padding: 0 100px;
  }

  .logo img {
    width: 174px;
  }

  .heading {
    padding: 300px 50px 48px;
    font-size: var(--huge-font-size);
  }

  .follow_up_button {
    top: 600px;
    right: 140px;
  }
}

@media screen and (min-width: 1280px) {
  .content section {
    margin: 0 auto;
    max-width: 524px;
  }

  .follow_up_button {
    top: 590px;
  }
}

@media screen and (min-width: 1440px) {
  .content section {
    max-width: 604px;
  }
}

@media screen and (min-width: 1600px) {
  .inner {
    margin: 0 auto;
    padding: 0;
    max-width: 1400px;
  }

  .follow_up_button {
    right: calc(((100% - 1400px) / 2) + 80px);
  }

  .content section {
    max-width: 684px;
  }
}