.concept.main {
  padding: 0;
  margin: 160px auto 0;
}
.top-intro {
  padding:  0;
  display: flex;
  flex-direction: column;
  align-items: center;
  /* background-image: url(../../assets/images/top/intro-bg.jpg);
  background-repeat: no-repeat;
  background-position: center;
  background-size: auto 95%; */
}
.top-intro p {
  margin-bottom: 2.2em;
  text-align: center;
  font-size: 16px;
  line-height: 2.2em;
}
.top-intro ul {
  margin-bottom: 2.2em;
}
.top-intro li {
  font-size: 16px;
  line-height: 2.2em;
}

.page-title {
  text-align: center;
  font-size: 50px;
  font-family: 'Jost', '游ゴシック', 'YuGothic', 'Yu Gothic', 'Hiragino Kaku Gothic ProN','Meiryo', 'Meiryo', sans-serif;;
  font-weight: 300;
  line-height: 1.2em;
  margin-bottom: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-title img {
  height: 70px;
  width: auto;
}
.page-title span {
  display: block;
  font-size: 12px;
  line-height: 1.2em;
  font-family: '游ゴシック', 'YuGothic', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', 'Meiryo', sans-serif;
  font-weight: bold;
  margin-top: 15px;
}


.top-intro-img {
  width: 1100px;
  margin: 50px auto 0;
}
.top-intro-img ul {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.top-intro-img ul li {
  width: 330px;
}
.top-intro-img ul li.main-img {
  width: 400px;
}
.top-intro-img ul li img {
  width: 100%;
  height: auto;
}

@media only screen and (max-width: 767px) {
  .concept.main {
    padding: 0;
    margin: 30vw auto 0;
  }
  .top-intro-img {
    width: 100vw;
    margin: 0 auto 15vw;
    overflow-x: hidden;
  }
  .top-intro-img ul {
    width: 110vw;
    margin-left: -5vw;
  }
  .top-intro-img ul li {
    width: 30%;
    margin: 0 -2vw;
  }

  .top-intro-img ul li.main-img {
    width: 48%;
    position: relative;
    z-index: 10;
  }
  .top-intro {
    padding: 0 8vw 6vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-image: none;
    background-repeat: no-repeat;
    background-position: center;
    background-size: auto 100%;
  }
  .top-intro p {
    margin-bottom: 2em;
    text-align: left;
    font-size: 3.3vw;
    line-height: 1.8em;
    width: 100%;
  }
  .top-intro li {
    font-size: 3.3vw;
    line-height: 1.8em;
  }

  .page-title {
    text-align: center;
    font-size: 8vw;
    font-family: 'Jost', '游ゴシック', 'YuGothic', 'Yu Gothic', 'Hiragino Kaku Gothic ProN','Meiryo', 'Meiryo', sans-serif;
    font-weight: 300;
    line-height: 1.2em;
    margin-bottom: 15vw;
  }
  .page-title span {
    display: block;
    font-size: 3vw;
    line-height: 1.2em;
    font-family: '游ゴシック', 'YuGothic', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', 'Meiryo', sans-serif;
    font-weight: bold;
    margin-top: 3vw;
  }
  .page-title img {
    height: 12vw;
    width: auto;
  }

}