:root {
  --zs-online-bg: #ececec;
  --zs-online-text: #666666;
  --zs-online-title: #353535;
  --zs-online-border: #d5d5d5;
  --zs-online-caption: rgba(0, 0, 0, 0.52);
  --zs-online-accent: #2a8fd0;
}

.zs-online-page {
  background: var(--zs-online-bg);
}

.zs-online-hero__desktop,
.zs-online-hero__mobile {
  position: relative;
  overflow: hidden;
}

.zs-online-hero__desktop {
  display: block;
}

.zs-online-hero__mobile {
  display: none;
}

.zs-online-carousel__track {
  position: relative;
}

.zs-online-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.zs-online-carousel__slide.is-active {
  position: relative;
  opacity: 1;
  z-index: 1;
}

.zs-online-carousel__slide a,
.zs-online-carousel__slide img {
  display: block;
  width: 100%;
}

.zs-online-carousel__slide img {
  height: auto;
  object-fit: cover;
}

.zs-online-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 2;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.zs-online-carousel__dots button {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 0;
  background: url("../img/circle.png") no-repeat center / cover;
}

.zs-online-carousel__dots button.is-active {
  background-image: url("../img/circleon.png");
}

.zs-online-breadcrumb {
  padding: 8px 0 12px;
  font-size: 1.2rem;
  line-height: 1.8;
  color: #8a8a8a;
}

.zs-online-breadcrumb .zs-shell {
  display: flex;
  align-items: center;
  gap: 5px;
}

.zs-online-breadcrumb a:last-child {
  color: #6193cc;
}

.zs-online-factory {
  padding: 0 0 54px;
}

.zs-online-factory__title {
  margin: 0;
  color: var(--zs-online-title);
  font-size: 4.4rem;
  font-weight: 700;
  line-height: 1.1;
  text-align: center;
  text-transform: uppercase;
}

.zs-online-factory__intro {
  max-width: 1050px;
  margin: 12px auto 30px;
  color: var(--zs-online-text);
  font-size: 1.8rem;
  line-height: 1.95;
  text-align: center;
}

.zs-online-gallery--desktop {
  display: block;
}

.zs-online-gallery--mobile {
  display: none;
}

.zs-online-gallery__stage {
  border: 1px solid var(--zs-online-border);
  background: #ffffff;
  padding: 10px;
}

.zs-online-gallery__figure {
  position: relative;
}

.zs-online-gallery__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 1170 / 655;
  object-fit: cover;
}

.zs-online-gallery__figure figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 18px 24px;
  background: var(--zs-online-caption);
  color: #ffffff;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
}

.zs-online-gallery__controls {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 48px;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
}

.zs-online-gallery__thumb-viewport {
  overflow: hidden;
}

.zs-online-gallery__arrow {
  position: relative;
  width: 48px;
  height: 116px;
  border: 1px solid #d3d3d3;
  background: #f3f3f3;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.zs-online-gallery__arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  border-top: 2px solid #8f8f8f;
  border-right: 2px solid #8f8f8f;
  transform-origin: center;
}

.zs-online-gallery__arrow--prev::before {
  transform: translate(-35%, -50%) rotate(-135deg);
}

.zs-online-gallery__arrow--next::before {
  transform: translate(-65%, -50%) rotate(45deg);
}

.zs-online-gallery__arrow:hover {
  border-color: #bababa;
  background: #e6e6e6;
}

.zs-online-gallery__thumb-track {
  display: flex;
  gap: 10px;
  transition: transform 0.35s ease;
}

.zs-online-gallery__thumb {
  flex: 0 0 calc((100% - 30px) / 4);
  border: 0;
  background: transparent;
  padding: 0;
  text-align: left;
  transition: none;
}

.zs-online-gallery__thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 118 / 89;
  object-fit: cover;
}

.zs-online-gallery__thumb.is-active,
.zs-online-gallery__thumb:hover {
  border: 0;
  transform: none;
}

.zs-online-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.zs-online-list__item img {
  display: block;
  width: 100%;
  border: 1px solid var(--zs-online-border);
}

.zs-online-list__item span {
  display: block;
  padding-top: 10px;
  color: #555555;
  font-size: 1.6rem;
  line-height: 1.4;
  text-align: center;
}

@media (max-width: 1219px) {
  .zs-online-gallery__controls {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
  }

  .zs-online-gallery__arrow {
    width: 42px;
    height: 100px;
  }
}

@media (max-width: 979px) {
  .zs-online-hero__desktop {
    display: none;
  }

  .zs-online-hero__mobile {
    display: block;
  }

  .zs-online-factory {
    padding-bottom: 42px;
  }

  .zs-online-factory__title {
    font-size: 3.2rem;
  }

  .zs-online-factory__intro {
    margin: 10px auto 22px;
    font-size: 1.55rem;
    line-height: 1.82;
  }

  .zs-online-gallery--desktop {
    display: none;
  }

  .zs-online-gallery--mobile {
    display: block;
  }
}

@media (max-width: 640px) {
  .zs-online-carousel__dots {
    bottom: 10px;
    gap: 8px;
  }

  .zs-online-carousel__dots button {
    width: 10px;
    height: 10px;
  }

  .zs-online-factory__title {
    font-size: 2.4rem;
  }

  .zs-online-factory__intro {
    font-size: 1.45rem;
    line-height: 1.72;
  }

  .zs-online-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}