.tongda_about_certificate {
  padding-top: 8.125rem;
  padding-bottom: 7.5rem;
  position: relative;
  overflow: hidden;
}

.tongda_about_certificate .container {
  position: relative;
}

.tongda_about_certificate_header {
  text-align: center;
}

.tongda_about_certificate_title {
  width: 100%;
  margin: 0;
  color: var(--title-text-color, #000);
  font-family: var(--font-family);
  font-weight: var(--font-weight-xl);
  line-height: 1.2;
  letter-spacing: 0;
  text-transform: capitalize;
}

.tongda_about_certificate_description {
  width: 100%;
  margin-top: 1.875rem;
  color: #535862;
  font-family: var(--font-family);
  font-size: var(--font-size-20);
  font-weight: var(--font-weight-sm);
  line-height: 1.5;
  word-break: break-word;
  text-align: left;
  opacity: 0.5;
}

.tongda_about_certificate_stage {
  position: relative;
  height: 24.75rem;
  margin-top: 3.75rem;
}

.tongda_about_certificate_swiper {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.tongda_about_certificate_swiper .swiper-wrapper {
  align-items: stretch;
}

.tongda_about_certificate_slide {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 100%;
  overflow: visible;
}

.tongda_about_certificate_media {
  display: block;
  width: 17.5rem;
  max-height: 100%;
  flex-shrink: 0;
  color: inherit;
  text-decoration: none;
  cursor: zoom-in;
  transform-origin: center;
  backface-visibility: hidden;
  will-change: transform;
}

.tongda_about_certificate_image {
  display: block;
  width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
}

.tongda_about_certificate_nav {
  position: absolute;
  top: calc(50% + 0.625rem);
  z-index: 8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.625rem;
  height: 4.625rem;
  padding: 0;
  color: #000;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  background: var(--gray-gray-10, rgba(180, 173, 173, 0.1));
  transform: translateY(-50%);
  transition:
    background 0.3s ease,
    opacity 0.3s ease;
}

.tongda_about_certificate_prev {
  left: 0;
}

.tongda_about_certificate_next {
  right: 0;
}

.tongda_about_certificate_nav_icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.875rem;
  height: 1.875rem;
  font-size: 1.875rem;
  line-height: 1;
  color: inherit;
  transition: color 0.3s ease;
}

.tongda_about_certificate_nav:hover {
  background: var(--color-primary);
}

.tongda_about_certificate_nav:hover .tongda_about_certificate_nav_icon {
  color: #fff;
}

.tongda_about_certificate.is-static
  .tongda_about_certificate_slide:first-child {
  display: flex;
}

@media (prefers-reduced-motion: reduce) {
  .tongda_about_certificate_nav,
  .tongda_about_certificate_nav_icon {
    transition: none;
  }
}

@media screen and (max-width: 1024px) {
  .tongda_about_certificate {
    padding-top: 6.5rem;
    padding-bottom: 6rem;
  }

  .tongda_about_certificate_description {
    margin-top: 1.5rem;
  }

  .tongda_about_certificate_stage {
    height: 23rem;
    margin-top: 3rem;
  }

  .tongda_about_certificate_media {
    width: 15rem;
  }

  .tongda_about_certificate_nav {
    top: 50%;
    width: 4rem;
    height: 4rem;
  }
}

@media screen and (max-width: 768px) {
  .tongda_about_certificate {
    padding-top: 5.5rem;
    padding-bottom: 5rem;
  }

  .tongda_about_certificate_stage {
    height: 21rem;
    margin-top: 2.5rem;
  }

  .tongda_about_certificate_media {
    width: 12.5rem;
  }

  .tongda_about_certificate_nav {
    width: 3.75rem;
    height: 3.75rem;
  }
}

@media screen and (max-width: 576px) {
  .tongda_about_certificate {
    padding-top: 4.5rem;
    padding-bottom: 4rem;
  }

  .tongda_about_certificate_description {
    margin-top: 1.25rem;
  }

  .tongda_about_certificate_stage {
    height: 19rem;
    margin-top: 2.5rem;
  }

  .tongda_about_certificate_media {
    width: 12rem;
  }

  .tongda_about_certificate_nav {
    width: 3.5rem;
    height: 3.5rem;
  }
}