.button{
  width: 330px;
  height: 50px;
  line-height: 46px;
  font-size: 1.6rem;
}
@media only screen and (max-width: 641px) {
.button {
    font-size: 1.4rem;
    width: auto;
    height: auto;
    line-height: 0;
    padding: 3% 14%;
}
}
.sub_contents{
    margin: 0 auto;
    text-align: center;
    padding-top: 80px;
}
.sub_title{
    padding: 40px 0;
}
.design{
  background-color:#333333;
  color: #fff;
}
.work{
  background-color:#505050;
  color: #fff;
}
.design_innr,
.work_innr,
.support_innr{
  width: 1260px;
  margin: 0 auto;
  padding: 40px 0;
}
.design_innr ul,
.work_innr ul,
.support_innr ul{
  display:-webkit-box;
  display: -webkit-flex;
  display:-ms-flexbox;
  display: flex;
  -webkit-flex-wrap:wrap;
  -ms-flex-wrap:wrap;
  flex-wrap:wrap;
  margin-bottom: 20px;
}
.support_innr ul{
  align-items: center;
}
.design_innr ul li,
.work_innr ul li,
.support_innr ul li{
  text-align: left;
  margin-bottom: 30px;
  padding: 10px 20px  30px;
  border-radius:12px;
}
.design_innr ul li{
  width: 520px;
  background-color: #505050;
  margin-right: 70px;
  align-self: normal;
}
.design_innr ul li:nth-child(2n){
 margin-left: 70px;
 margin-right: 0px;
}
.work_innr ul li{
  width: 360px;
  color: #505050;
  background-color: #fff;
  margin-right: 30px;
  align-self: normal;
}
.support_innr ul li{
  width: 100%;
  color: #fff;
  background-color: #505050;
  align-self: stretch;
}
.work_innr ul li:last-child{
 margin-right: 0px;
}
.design_innr ul li span,
.work_innr ul li span,
.support_innr ul li span{
  display: block;
  font-size: 2.0rem;
  margin-bottom: 10px;
  padding: 6px 0;
}
.design_innr ul li span{
  border-bottom: 1px solid #9a9a9a;
}
.work_innr ul li span{
  border-bottom: 1px solid #505050;
}
.support_innr ul li span{
  border-bottom: 1px solid #9a9a9a;
}
.support_innr p{
 font-size: 2.0rem;
 margin: 80px 0 40px;
}

@media screen and (max-width: 1260px) {
  .design_innr,
  .work_innr,
  .support_innr{
    width: 96%;
    margin: 0 auto;
    padding: 40px 0;
  }
.design_innr ul li {
    width: 44%;
    margin-right: 2%;
    padding: 1% 2%;
}
.design_innr ul li:nth-child(2n) {
    margin-left: 2%;
}
.work_innr ul li {
    width: 28%;
    margin-right: 2%;
    padding: 1% 2%;
}
.support_innr ul li{
  padding: 1% 2%;
  height: auto;
}
}

/* ============================================

sp設定

============================================ */

@media only screen and (max-width: 641px) {

  .sub_contents {
    padding-top: 0!important;
  }
  .design_innr ul li {
      width: 100%;
      margin-right: 0%;
      padding: 4% 6%;
}
  .design_innr ul li:nth-child(2n) {
      margin-left: 0;
  }
  .work_innr ul li {
      width: 100%;
      margin-right: 0%;
      padding: 4% 6%;
  }
  .support_innr ul li {
    padding: 4% 6%;
}
  .support_innr p {
    font-size: 1.8rem;
}
.design_innr ul li span,
.work_innr ul li span,
.support_innr ul li span{
  font-size: 1.8rem;
}
}