.is-nav{
  display: flex;
  justify-content: space-between;
  width: 890px;
  max-width: 100%;
  margin: 1em auto 3em auto;
}
.is-nav li{
  margin: 2rem 0 0;
  width: 31%;
  list-style-type: none;
}
.is-nav li a{
  display: block;
  border: 1px solid #181d61;
  text-align: center;
  color: #181d61;
  font-weight: 500;
  font-size: .9em;
  position: relative;
  padding: 8px 6px 26px 6px;
}
.is-nav li a::after{
  content: "";
  position: absolute;
  bottom: 12px;
  left: 50%;
  width: 0;
  height: 0;
  margin-left: -8px;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #181d61;
}

.flow{
  text-align: center;
}
.flow .ttl{
  margin: 1.5em 0;
  font-weight: 600;
  position: relative;
}
.flow .ttl .en{
  font-size: 1em;
  color: #000;
  line-height: 1.4;
  margin: 0 auto;
}
.flow .ttl h2{
  font-size: max(2.4vw, 1.4rem);
  position: relative;
}
.flow .ttl span{
  font-size: .9em;
  position: relative;
}
.flow-step{
  margin: 0 auto;
  position: relative;
}
.flow-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%,0);
  height: 100%;
  width: 3px;
  background: #181d61;
}
.flow__items{
  background: #fff;
  display: flex;
  justify-content: space-between;
  border-radius: 1px;
  list-style-type: none;
  padding: 2em;
  margin-bottom: 3em;
  position: relative;
  text-align: left;
}
.flow__items h3{
  line-height: 1.4;
  font-size: max(1.4vw, 1.1em);
}
.flow__items h3 span{
  display: block;
  font-size: .9rem;
  color: #181d61;
  padding-bottom: 6px;
}
.flow-step li p{
  font-size: .95em;
  line-height: 1.8;
}
.flow-step li .num{
  background: #181d61;
  padding: 4px 10px;
  color: #fff;
  font-weight: 600;
}
.flow-step li .sub{
  display: block;
  font-size: .9em;
  padding: 6px 0 0;
}
.flow-step .last{
  background: #80ba35;
  color: #fff;
}
.merit{
  background: #fff;
  padding: 3vw;
  margin-bottom: 3em;
  position: relative;
}
/*
.merit__items{
  text-align: center;
  background: #fff;
  padding: 2em 1.4em 1.4em 1.4em;
  position: relative;
}*/
.merit .num{
  position: absolute;
  top: 0;
  left: 0;
  background: #181d61;
  color: #fff;
  font-weight: 600;
  padding: 6px 10px;
  font-size: 1.4em;
  font-family: "Poppins", sans-serif;
}
.merit h3{
  padding: 1.5em 0 1em;
  font-size: max(1.6vw, 1.2em);
  line-height: 1.6;
}
.merit__items .txt p{
  padding-bottom: 10px;
}
.car-box{
  padding: 5em 0;
}
.car-box-list{
  display: flex;
  flex-wrap: wrap;
  margin: -10px -10px 0px;
}
.car-box-list li{
  width: calc(25% - 20px);
  margin: 10px 10px 10px;
  padding: 1.5em 1em 1.5em 1em;
  background: #fff;
  border-radius: 4px;
  font-weight: 600;
  list-style-type: none;
  background: #f3f4f8;
  text-align: center;
}
.car-box-list li span{
  display: block;
  font-size: .7em;
  color: #000;
}
.car-box-list li .img img{
  width: 100px;
  border: 3px solid #fff;
  border-radius: 500px;
  margin-bottom: 10px;
}
.car-box-list li p{
  line-height: 1.5;
  font-size: 1.1em;
}
@media screen and (min-width: 769px) {
  .merit__items .img{
    width: 30%;
  }
  .merit__items .txt{
    width: 65%;
  }
  .flow__items h3{
    width: 20%;
  }
  .flow__items p{
    width: 50%;
  }
  .flow__items .photo{
    width: 24%;
  }
}
@media screen and (max-width: 991px) {
  .is-nav{
    flex-direction: column;
    padding: 0 2em;
  }
  .is-nav li{
    width: 100%;
    margin-top: 1rem;
  }
  .is-nav li a{
    padding: 5px 10px 20px 10px;
    font-size: 13px;
  }
  .is-nav li a::after{
    bottom: 10px;
  }
  .first_sec{
    margin-bottom: 30px;
  }
  .merit,.merit2,.flow__items{
    flex-direction: column;
  }
  .merit__items{
    margin-bottom: 1em;
    padding-top: 1.3em;
  }
  .merit__items img{
    width: 100%;
  }
  .car-box-list li{
    width: calc(50% - 20px);
    padding-left: 6px;
    padding-right: 6px;
  }
  .car-box-list li p{
    font-size: 15px;
  }
  .car-box-list li .img img{
    width: 90px;
    margin-bottom: 10px;
  }
  .flow-step li p{
    padding: .6em 0;
    font-size: 14px;
  }
  .merit h3{
    padding-top: 2.5em;
  }
}