#qa .box {
  margin: 6rem auto 0 auto;
}

@media screen and (max-width: 768px) {
  #qa .box {
    margin: 0 auto;
  }
  #qa h1 {
    font-size: 1.8rem;
  }
}

#qa p.tac {
  margin-bottom: 0;
  padding-bottom: 50px;
}

.qa_img {
  text-align: center;
  margin-bottom: 20px;
}

.qa_caption {
  text-align: center;
}

.qa_list ol {
  border-top: 1px solid #244271;
  border-bottom: 1px solid #244271;
  padding: 50px;
}

.qa_list li {
  color: #eb536b;
  font-size: 2.2rem;
}

.qa_list dl {
  padding: 50px;
  border-bottom: 1px solid #244271;
  position: relative;
}

.qa_list dl dt span, .qa_list dl dd span {
  font-size: 2.2rem;
  padding-left: 6rem;
  margin-bottom: 2rem;
  display: inline-block;
}

.qa_list dl dt span {
  color: #eb536b;
  background: url("../img/qa_icon_01.png") left center no-repeat;
  background-size: 4rem;
}

.qa_list dl dd span {
  color: #003F9A;
  background: url("../img/qa_icon_02.png") left center no-repeat;
  background-size: 4rem;
}

.to_top {
  position: absolute;
  right: 10px;
  bottom: 0px;
}

@media screen and (max-width: 768px) {
  .qa_list ol, .qa_list dl {
    padding: 30px 0;
  }
  .qa_list dl dt span, .qa_list dl dd span {
    font-size: 1.6rem;
  }
  .qa_list li {
    font-size: 1.6rem;
  }
}