p.sub_title {
  font-size: 20px;
  font-weight: bold;
  border-bottom: 2px solid;
  width: max-content;
  margin-top: 0px;
  padding: 5px 0;
}
table{
  font-size:14px;
}
#Introduction td{
  border-bottom: 1px solid;
  padding: 10px;
}
#Introduction tr:nth-child(1) td{
  border-top: 1px solid;
}
.Qualification tr:not(:nth-child(4)) td:nth-child(1), .Payment tr td:nth-child(1), .calc_publish tr td:nth-child(1) {
  min-width: 70px;
  background: #eee;
}
.Membership_fee tr:nth-child(1) td  {
  background: #eee;
  padding-left: 5px;
  width: 20%;
}
#Introduction .contents{
  padding: 0 15px;
}
#Introduction .contents>div {
  margin-bottom: 50px;
}
#Introduction .contents>div>div {
  margin: 0px 20px;
}
@media screen and (max-width: 500px) {
  #Introduction .contents>div {
    margin-bottom: 30px;
  }
  #Introduction .contents>div>div {
    margin: 0px 10px;
  }
}