.corporate_ttl {
  margin: 80px 0 50px;
  border-bottom: 1px solid #000000;
}
.page-template-front-page .corporate_ttl {
  margin: 30px 0 0;
  border:0;
}
.corporate_ttl h4 {
  font-size: 26px;
  background: #000000;
  margin: 0 0 50px;
  line-height: 50px;
  color: #ffffff;
  font-size: 18px;
  font-weight: bold;
  text-align: center;
}
.corporate_desc {
  padding-left: 1em;
  text-indent: -1em;
  font-size: 14px;
}
.corporate_list {
  display: flex;
  flex-wrap: wrap;
  margin-right: -3%;
  margin-bottom: 10px;
}
.corporate_list li {
  width: 50%;
  margin: 0 0 3%;
  padding-right: 3%;
}
.corporate_btn {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  height: 100px;
  border-radius: 25px;
  margin-bottom: 10px;
  border: 2px solid #000000;
  color: #000000;
  font-weight: bold;
  font-size: 15px;
  text-align: center;
  line-height: 1.5;
}
.corporate_btn:hover {
  background: #000000;
  border: 2px solid #000000;
  color: #ffffff;
  transition: all .5s ease-out;
}
.corporate_btn a {
  display: block;
}
.corporate_date {
  text-align: center;
  font-size: 15px;
}
.corporate_btn02 {
  background: #ffffff;
  border-radius: 25px;
  margin-bottom: 10px;
  border: 2px solid #000000;
  font-weight: bold;
  font-size: 18px;
} 
.corporate_btn02:hover {
  background: #000000;
  transition: all .5s ease-out;
}
.corporate_btn02 a {
  display: block;
  color: #000000;
  text-align: center;
  padding: 20px 0;
}
.corporate_btn02 a:hover {
  color: #ffffff;
}
@media only screen and (min-width: 641px) {
  .corporate_ttl h4 {
    font-size: 26px;
  }
  .corporate_list li {
    width: 25%;
  }
  .corporate_btn {
    height: 120px;
    font-size: 16px;
    line-height: inherit;
  }
  .corporate_date {
    font-size: 16px;
  }
}
@media only screen and (min-width: 769px) {
  .corporate_btn {
    font-size: 22px;
  }
  .corporate_btn02 {
    font-size: 25px;
  }
}