.zs-case-detail-main {
  padding: 40px 0 80px;
}

.zs-case-detail-title {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
  line-height: 1.3;
}

.zs-case-detail-specs {
  font-size: 16px;
  color: #000;
  line-height: 1.6;
  margin-bottom: 40px;
}

/* Slider */
.zs-case-slider {
  position: relative;
  width: 60%;
  margin: 0 auto 50px;
  overflow: hidden;
}

.zs-case-slider-viewport {
  overflow: hidden;
  width: 100%;
  aspect-ratio: 4 / 3;
  max-height: 800px;
}

.zs-case-slider-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
  height: 100%;
}

.zs-case-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
}

.zs-case-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}

.zs-case-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.3s;
}

.zs-case-slider-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

.zs-case-slider-btn.is-prev {
  left: 20px;
}

.zs-case-slider-btn.is-next {
  right: 20px;
}

.zs-case-slider-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.zs-case-slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.zs-case-slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 0.3s;
}

.zs-case-slider-dot.is-active {
  background: #333;
}

/* Related Products */
.zs-case-related-title {
  font-size: 32px;
  font-weight: 700;
  color: #0b3d68;
  margin-bottom: 30px;
}

.zs-case-related-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  align-items: stretch;
}

.zs-case-related-product {
  max-width: none;
  min-width: 0;
}

.zs-case-related-product a {
  display: block;
  border: 1px solid #e8edf3;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  transition: box-shadow 0.25s ease, transform 0.25s ease, opacity 0.3s;
}

.zs-case-related-product img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.zs-case-related-product a:hover {
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

@media (max-width: 1200px) {
  .zs-case-related-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .zs-case-related-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 560px) {
  .zs-case-related-list {
    grid-template-columns: 1fr;
  }
}