.area_kv {
  background-image: url(../img/kv/quality_pc.jpg);
  background-size: 1920px;
}
@media screen and (max-width: 768px) {
  .area_kv {
    background-image: url(../img/kv/quality_sp.jpg);
    background-size: cover;
  }
}

.txt_lead {
  text-align: center;
  font-weight: 700;
}
@media screen and (max-width: 768px) {
  .txt_lead {
    font-size: min(4.2666666667vw, 32px);
  }
}

@media screen and (min-width: 769px) {
  .bg_mark {
    padding-bottom: 120px;
  }
}
@media screen and (max-width: 768px) {
  .bg_mark {
    padding: 11vw 0 18vw;
  }
}

@media screen and (max-width: 768px) {
  main .inner {
    padding: 0;
  }
}

.box_quality {
  margin-top: 100px;
  min-height: min(37.8787878788vw, 500px);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  position: relative;
}
.box_quality:first-of-type {
  margin-top: 72px;
}
.box_quality .image {
  width: min(60.6060606061vw, 800px);
  position: absolute;
  top: 0;
}
@media screen and (max-width: 1720px) {
  .box_quality .image {
    width: calc(50vw - min(4.5454545455vw, 60px));
  }
}
.box_quality .image .img {
  height: 500px;
  position: relative;
  overflow: hidden;
}
.box_quality .image .img img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  -o-object-position: 50% 50%;
     object-position: 50% 50%;
  -webkit-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
  -webkit-transform: scale(1);
          transform: scale(1);
}
.box_quality .image .num {
  height: 88px;
  font-size: 120px;
  font-weight: 700;
  color: #ba006d;
  font-family: "RobotoCondensed", sans-serif;
  line-height: 0.75;
  display: inline-block;
  position: absolute;
  bottom: 0;
}
.box_quality:nth-of-type(odd) .image {
  left: calc(50% + min(4.5454545455vw, 60px));
}
.box_quality:nth-of-type(odd) .image .num {
  left: -35px;
}
.box_quality:nth-of-type(even) {
  padding-left: 50%;
}
.box_quality:nth-of-type(even) .image {
  right: calc(50% + min(4.5454545455vw, 60px));
}
.box_quality:nth-of-type(even) .image .num {
  right: -35px;
}
.box_quality dl {
  width: min(45.4545454545vw, 600px);
  padding-top: 26px;
}
.box_quality dl dt {
  font-size: 36px;
  font-weight: 700;
  color: #ba006d;
  line-height: 1.6;
}
.box_quality dl dd {
  margin-top: 30px;
}
@media screen and (max-width: 768px) {
  .box_quality {
    margin-top: 11vw;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .box_quality .image {
    width: 92%;
    position: relative;
  }
  .box_quality .image .img {
    height: auto;
  }
  .box_quality .image .num {
    height: min(9.3333333333vw, 70px);
    font-size: min(12.5333333333vw, 94px);
  }
  .box_quality:nth-of-type(odd) .image {
    left: 8%;
  }
  .box_quality:nth-of-type(odd) .image .num {
    left: -0.4em;
  }
  .box_quality:nth-of-type(even) {
    padding-left: 0;
  }
  .box_quality:nth-of-type(even) .image {
    right: 0;
  }
  .box_quality:nth-of-type(even) .image .num {
    right: -0.4em;
  }
  .box_quality:first-of-type {
    margin-top: 11vw;
  }
  .box_quality:first-of-type .image {
    width: 85%;
    left: 15%;
  }
  .box_quality dl {
    width: 100%;
    margin-top: 6vw;
    padding: 0 4%;
  }
  .box_quality dl dt {
    font-size: min(6.4vw, 48px);
  }
  .box_quality dl dd {
    margin-top: 1em;
  }
}