@media screen and (max-width: 767.999px) {
  #main_img_area {
    height: 64vw;
    padding: 31.7vw 0 0 30px;
  }
  #main_img_area h1 .ja {
    line-height: 1.29;
  }
  #sitemap_page .sitemap_contents {
    padding: 56px 30px 80px;
  }
  #sitemap_page .sitemap_contents section {
    margin-top: 57px;
  }
  #sitemap_page .sitemap_contents section h2 {
    font-size: 2rem;
    padding-bottom: 22px;
    font-weight: 600;
  }
  #sitemap_page .sitemap_contents section h2::after {
    width: 30px;
  }
  #sitemap_page .sitemap_contents section .link_list {
    margin-top: 17px;
  }
  #sitemap_page .sitemap_contents section .link_list a {
    padding: 28px 0 25px;
  }
  #sitemap_page .sitemap_contents section:nth-of-type(1) {
    margin-top: 0;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list {
    margin-top: 30px;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li {
    margin-top: 30px;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li a {
    padding: 23px 0;
    display: block;
    position: relative;
    font-size: 2rem;
    font-weight: 600;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 1px;
    background: #002e8c;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li a.external_link {
    padding-right: 25px;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li a.external_link::before {
    content: "";
    background: url(../img/common/icon_extlink.png) no-repeat;
    background-size: 100% auto;
    position: absolute;
    top: calc(50% - 7px);
    left: 11em;
    width: 15px;
    height: 14px;
  }
  #sitemap_page .sitemap_contents #sitemap_large_list li:nth-of-type(1) {
    margin-top: 0;
  }
}