.about {
  padding: 30px 0;
}

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

.about .row>div img {
  width: 100%;
  display: block;
  aspect-ratio: 670 / 377;
}

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

.about .info {
  line-height: 30px;
  max-height: 180px;
}

.about .info>*:not(:last-child) {
  margin-bottom: 8px;
}

@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 .title {
    margin-bottom: 50px;
  }

  .about .info {
    max-height: 300px;
  }
}

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

  .about .info {
    max-height: 360px;
  }
}


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

.photo .title {
  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: 50px;
  }
}

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


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

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

.certificate .swiper-slide img {
  width: 100%;
  aspect-ratio: 266 / 375;
  border: 1px solid #ced4da;
}

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

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

  .certificate .title {
    margin-bottom: 50px;
  }

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

@media (min-width: 1440px) {
  .certificate {
    padding-bottom: 93px;
  }
}


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

.milestone .title {
  margin-bottom: 20px;
}

.milestone .swiper-slide {
  text-align: center;
}

.milestone .year {
  color: var(--style-color);
  font-family: 'LTSuperiorSerif-Bold';
}

.milestone .info-desc {
  max-height: 72px;
  padding-right: 1px;
  color: #666;
}

.milestone .swiper-pagination {
  position: static;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  display: flex;
}

.milestone .swiper-pagination-bullet {
  flex-shrink: 0;
  background-color: #d2d2d2;
  opacity: 1;
  transition: all .3s;
}

.milestone .swiper-pagination-bullet-active {
  background: var(--style-color);
}

@media(min-width: 768px) {
  .milestone .swiper-container {
    height: 480px;
    padding: 0 20px;
  }

  .milestone .swiper-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 36px;
    transform: translateY(-50%);
    border: 2px solid var(--style-color);
    display: block;
  }

  .milestone .swiper-slide {
    text-align: left;
  }

  .milestone .swiper-slide:nth-child(even) {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  .milestone .swiper-slide::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 24px;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #fff;
    border: 12px solid var(--style-color);
  }

  .milestone .info-group {
    position: relative;
  }

  .milestone .info-group::after {
    content: '';
    position: absolute;
    left: 24px;
    transform: translateX(-50%);
    width: 2px;
    height: 100px;
    background: var(--style-color);
    z-index: -1;
  }

  .milestone .swiper-slide:nth-child(odd) .info-group::after {
    top: calc(100% + 5px);
  }

  .milestone .swiper-slide:nth-child(even) .info-group::after {
    bottom: calc(100% + 5px);
  }

  .milestone .info-desc {
    height: 72px;
    max-height: none;
  }

  .milestone .swiper-pagination {
    display: none;
  }
}

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

  .milestone .title {
    margin-bottom: 50px;
  }

  .milestone .info-desc {
    height: 81px;
  }
}

@media(min-width: 1440px) {
  .milestone {
    padding-bottom: 93px;
  }
}