section.first_section {
  background: #FFFFFF;
}

@media screen and (min-width: 768px) {
  #subpage_title_area h1 {
    font-size: 42px;
  }
  section.first_section {
    padding: 60px 0 100px;
  }
  section.first_section dl {
    width: 1040px;
    margin: 0 auto;
    display: flex;
  }
  section.first_section dl dt {
    line-height: 2;
    width: 130px;
    font-weight: 600;
    padding: 15px 10px;
    border-bottom: 2px solid #dfdcd0;
  }
  section.first_section dl dd {
    line-height: 2;
    padding: 15px 10px;
    border-bottom: 1px solid #f0efea;
    flex-grow: 1;
  }
  section.first_section dl:nth-of-type(1) dt {
    border-top: 2px solid #dfdcd0;
  }
  section.first_section dl:nth-of-type(1) dd {
    border-top: 1px solid #f0efea;
  }
}