/* about */
.about {
  padding-top: 30px;
}

.about .container>* {
  padding-bottom: 30px;
}

.about .img-wrap {
  position: relative;
}

.about .title {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  color: #fff;
  padding: 15px;
  background: rgba(0, 0, 0, .35);
}

.about .info {
  margin-top: 20px;
}

.about iframe {
  display: block;
  width: 100%;
  aspect-ratio: 1200 / 675;
}

@media (min-width: 1200px) {
  .about {
    padding-top: 60px;
  }

  .about .container>* {
    padding-bottom: 60px;
  }

  .about .title {
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .about .info {
    margin-top: 48px;
  }
}

@media (min-width: 1440px) {
  .about {
    padding-top: 120px;
  }

  .about .container>* {
    padding-bottom: 120px;
  }

  .about .title {
    padding-top: 48px;
    padding-bottom: 48px;
  }
}

@media (min-width: 1640px) {
  .about .title {
    font-size: 45px;
  }
}


/* advantage */
.advantage {
  padding-bottom: 30px;
}

.advantage .item-list>li {
  text-align: center;
  margin-bottom: 30px;
}

.advantage .num {
  line-height: 1;
  color: var(--style-color);
  font-family: "JosefinSans-B";
}

.advantage .tit::before {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: rgba(0, 0, 0, .3);
  margin: 10px 0 15px;
}

.advantage .row>div:first-child {
  margin-bottom: 30px;
}

.advantage .row img {
  box-shadow: 0px 3px 8px 0px rgba(0,0,0,0.3);
}

@media (min-width: 768px) {
  .advantage .item-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0 -30px;
  }

  .advantage .item-list>li {
    flex: 0 0 250px;
    max-width: 250px;
    margin-left: 30px;
    margin-right: 30px;
  }
}

@media (min-width: 992px) {
  .advantage .item-list {
    margin: 0 -40px;
  }

  .advantage .item-list>li {
    flex: 0 0 375px;
    max-width: 375px;
    margin-left: 40px;
    margin-right: 40px;
  }

  .advantage .row>div {
    align-self: center;
  }

  .advantage .row>div:first-child {
    margin-bottom: 0;
  }
}

@media (min-width: 1200px) {
  .advantage {
    padding-bottom: 60px;
  }

  .advantage .item-list {
    margin: 0 -60px;
  }

  .advantage .item-list>li {
    margin: 0 60px 60px;
  }

  .advantage .tit::before {
    margin: 30px 0 36px;
  }
}

@media (min-width: 1440px) {
  .advantage {
    padding-bottom: 120px;
  }
  
  .advantage .container:last-child {
    max-width: 1400px;
  }

  .advantage .item-list>li {
    margin-bottom: 120px;
  }

  .advantage .num {
    font-size: 65px;
  }

  .advantage .tit::before {
    margin-bottom: 44px;
  }

  .advantage .row {
    margin-left: -60px;
    margin-right: -60px;
  }

  .advantage .row>div {
    padding: 0 60px;
  }
}


/* introduce */
.introduce {
  padding: 30px 0;
  background: #F5F5F5;
}

@media (min-width: 1200px) {
  .introduce {
    padding: 60px 0;
  }
}

@media (min-width: 1440px) {
  .introduce {
    padding: 120px 0;
  }
}