#breadcrumb {
  margin-bottom: 56px;
  padding: 10px 0 10px;
  background: #f3f3f3;
}
#breadcrumb ol {
  margin-inline: auto;
}
#breadcrumb ol li {
  display: inline;
  font-size: 12px;
  position: relative;
}
#breadcrumb ol li:nth-child(n+2) {
  margin-left: 8px;
}
#breadcrumb ol li:nth-child(n+2)::before {
  content: "";
  width: 1em;
  height: 1em;
  margin-right: 10px;
  display: inline-block;
  background: url(../img/common/icon_right.png) no-repeat center top;
  background-size: 100%;
  position: relative;
  top: 1px;
}
#breadcrumb ol li a, #breadcrumb ol li span {
  color: #949494;
}
#breadcrumb ol li a {
  text-decoration: underline;
}
@media screen and (max-width: 768px) {
  #breadcrumb {
    margin-bottom: 12vw;
    padding: 0.8em 0;
  }
  #breadcrumb ol li {
    font-size: min(2.6666666667vw, 12px);
    position: relative;
    line-height: 1.4;
  }
  #breadcrumb ol li:nth-child(n+2) {
    margin-left: 0.6em;
  }
  #breadcrumb ol li:nth-child(n+2)::before {
    width: 1em;
    height: 1em;
    margin-right: 0.5em;
  }
}

#notfound404 .txt_404 {
  margin: 40px auto 0;
  text-align: center;
}
#notfound404 .box_btn {
  margin: 60px auto 0;
}
@media screen and (max-width: 768px) {
  #notfound404 .txt_404 {
    margin: 2em auto 0;
  }
  #notfound404 .box_btn {
    margin: 3em auto 0;
  }
}