.about {
  padding: 30px 0;
}

.about .title {
  font-weight: 900;
  margin-bottom: 20px;
}

.about iframe {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 670 / 377;
}

.about .row>div:last-child {
  margin-top: 20px;
}

.about .info {
  max-height: 195px;
}

.about .info>*:not(:last-child) {
  margin-bottom: 10px;
}

.about .info ul {
  padding-left: 20px;
}

@media (min-width: 992px) {
  .about .row {
    align-items: center;
  }

  .about .row>div:last-child {
    margin-top: 0;
  }

  .about .info {
    max-height: 240px;
  }
}

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

  .about .info {
    font-size: 18px;
  }

  .about .info {
    max-height: 297px;
  }

  .about .info>*:not(:last-child) {
    margin-bottom: 15px;
  }
}

@media (min-width: 1440px) {
  .about {
    padding: 80px 0;
  }

  .about .info {
    max-height: 368px;
  }
}


/* photo */
.photo {
  padding: 30px 0;
  background: rgb(238, 238, 238, 0.3);
}

.photo .title {
  font-weight: 900;
  margin-bottom: 20px;
}

.photo .tit {
  margin-top: 8px;
  text-align: center;
}

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

  .photo .title {
    margin-bottom: 30px;
  }
}

@media (min-width: 1440px) {
  .photo {
    padding-bottom: 72px;
  }
}


/* certificate */
.certificate {
  padding: 30px 0;
}

.certificate .title {
  font-weight: 900;
  margin-bottom: 20px;
}

.certificate .swiper-slide img {
  border: 1px solid #ced4da;
}

.certificate .tit {
  margin-top: 8px;
  text-align: center;
}

.certificate .swiper-pagination {
  display: block;
  margin-top: 15px;
}

.certificate .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
}

@media (min-width: 1200px) {
  .certificate {
    padding: 64px 0;
  }

  .certificate .title {
    margin-bottom: 30px;
  }

  .certificate .swiper-pagination {
    margin-top: 24px;
  }
}