.mv{
  background-image: url(../img/mv.jpg);
  background-size: cover;
  background-position: center center;
  width: 100%;
  height: 450px;
  position: relative;
}

.flow{
  width: 1200px;
  margin: 0 auto;
}
.flow h3{
  text-align: center;
}
.flow dl{
  display: flex;
  flex-wrap: wrap;
  border: 1px solid #333333;
  padding: 20px;
  margin-bottom: 69px;
  position: relative;
}
.flow dl .number {
  background-color: #2C98DA;
  border-radius: 50%;
  text-align: center;
  padding: 16px 22px;
  color: #fff;
  position: absolute;
  top: -40px;
  left: 8px;
  font-size: 4.0rem;
  font-weight: bold;
  line-height: 1em;
  width: 35px;
  height: 47px;
}
.flow dl::after{
  content: "";
  display: inline-block;
  width: 0;
height: 0;
border-style: solid;
border-width: 40px 25px 0 25px;
border-color: #007bff transparent transparent transparent;
margin: 0 auto;
position: absolute;
bottom: -56px;
left: 0;
right: 0;
}
.flow dl:last-child{
  margin-bottom: 0;
}

.flow dl:last-child::after{
  content: none;
}
.flow dt{
  width: 350px;
  margin-right: 50px;
}
.flow dt img{
  width: 100%;
}
.flow dd{
  width: calc(100% - 400px);
}
.flow_content_ttl{
  font-size: 2.2rem;
  font-weight: 500;
  display: block;
  margin-bottom: 30px;
}
.flow .detail_btn_l {
  margin-top: 30px;
    width: 300px;
    text-align: center;
}
.flow .detail_btn_l a {
    background-color: #75B0E0;
    color: #fff;
    display: block;
    padding: 5px 0;
    padding-right: 18px;
    position: relative;
}
.flow .detail_btn_l a::before {
    content: "";
    width: 18px;
    height: 18px;
    /* border: 1px solid #8F8F8F; */
    border-radius: 50%;
    background-color: #fff;
    position: absolute;
    top: 2px;
    bottom: 0;
    right: 24px;
    margin: auto;
    /* margin-left: 125px; */
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    transition: all 0.5s;
}
.flow .detail_btn_l a::after {
    content: "";
    width: 5px;
    height: 5px;
    border-top: solid 1px #75B0E0;
    border-right: solid 1px #75B0E0;
    transform: rotate(45deg);
    position: absolute;
    top: 2px;
    bottom: 0;
    margin: auto;
    margin-left: 18px;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    transition: all 0.5s;
}
/******************************************************** 第一メディアクエリ設定 */
@media screen and (min-width: 0px) and (max-width: 1200px) {
.flow {
    width: 90%;
}
}
/******************************************************** タブレット用設定 */
@media screen and (min-width: 0px) and (max-width: 940px) {
.flow dt {
    width: 250px;
    margin-right: 30px;
}
.flow dd {
    width: calc(100% - 280px);
}
.flow .detail_btn_l {
    margin-top: 30px;
    width: 100%;
}
.flow .detail_btn_l a::before {
margin-left: 221px;
    right: auto;
}
}

/******************************************************** スマホ用設定 */

@media screen and (min-width: 0px) and (max-width: 640px) {
.mv_under {
  background-image: url(../img/flow/mv_under_sp.jpg);
  background-size: cover;
  background-position: center center;
  width: 100%;
  height: 400px;
  position: relative;
}
.flow dt {
    width: 100%;
    margin-right: 0;
    margin-bottom: 10px;
}
.flow dd {
    width: 100%;
}
.flow_content_ttl {
    font-size: 1.8rem;
    margin-bottom: 15px;
}
.flow .detail_btn_l {
    margin-top: 20px;
}
.flow .detail_btn_l a::before {
    margin-left: 208px;
    right: auto;
}
.flow dl {
    padding: 20px;
    margin-bottom: 52px;
}
.flow dl::after {
    border-width: 24px 15px 0 15px;
    bottom: -40px;
}
.flow dl .number {
  padding: 15px 15px;
  font-size: 2.8rem;
  width: 25px;
  height: 25px;
  line-height: 0.8em;
  top: -15px;
  left: -6px;
}
}