.margin-bottom-xs {
  margin-bottom: 10px;
}

.margin-bottom-s {
  margin-bottom: 25px;
}

.margin-bottom-m {
  margin-bottom: 50px;
}

.margin-bottom-l {
  margin-bottom: 75px;
}

.margin-bottom-xl {
  margin-bottom: 100px;
}

.txt-l {
  font-size: 54px;
}

.main-txt {
  background-color: rgb(234, 234, 234);
  padding: 35px 45px;
  font-size: 19px;
  line-height: 2.1;
}

.main-copy {
  position: relative;
  margin-top: 150px;
  margin-bottom: 200px;
  font-size: 40px;
  font-weight: normal;
  color: #7c7c7c;
  text-align: center;
  line-height: 1.5;
}

.main-copy::before {
  content: "";
  position: absolute;
  top: 120%;
  left: 50%;
  display: inline-block;
  width: 70px;
  height: 4px;
  border-bottom: 4px #8f9797 solid;
  transform: translateX(-50%);
}

.concept-ttl-em {
  right: 0;
  left: 0;
}

@media screen and (max-width: 767px) {
  .main-copy {
    margin-top: 80px;
    margin-bottom: 100px;
    font-size: 8vw;
    line-height: 1.2;
  }

  .margin-bottom-xs {
    margin-bottom: 6px;
  }
  
  .margin-bottom-s {
    margin-bottom: 15px;
  }

  .margin-bottom-m {
    margin-bottom: 30px;
  }

  .margin-bottom-l {
    margin-bottom: 45px;
  }

  .margin-bottom-xl {
    margin-bottom: 60px;
  }
}

@media screen and (min-width: 768px) {
  .footer-nav-list:not(.-single) .footer-nav-item {
    width: 100%;
}
}