.product-detail {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  padding-top: calc(var(--navbar-height) + 15px);
}

.product-detail__tab {
  display: block;
  width: 100%;
  min-height: calc(100vh - var(--navbar-height) - 200px);
}

.product-detail__upper {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.product-detail__left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.product-detail__logo-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.product-detail__logo {
  width: var(--size-logo-lg);
  height: var(--size-logo-lg);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  flex-shrink: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.product-detail__logo.circle {
  border-radius: var(--radius-full);
}

.product-detail__name {
  font-size: var(--font-size-2xl);
  font-weight: 600;
}

.product-detail__desc-label {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-primary);
  font-weight: bold;
  margin-bottom: var(--spacing-sm);
}

.product-detail__desc {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 600px;
}

.product-detail__right {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-lg);
}

.product-detail__video {
  width: var(--size-video-width);
  height: var(--size-video-height);
  background-color: var(--color-text-primary);
  color: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
}

.product-detail__image {
  width: 280px;
  height: 180px;
  background-color: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.product-detail__image.large {
  width: var(--size-video-width);
  height: var(--size-video-height);
}

.product-detail__lower {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2xl);
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xl) 0;
}

.product-detail__feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.product-detail__feature-icon {
  width: var(--size-icon-md);
  height: var(--size-icon-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-placeholder);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  background-image: url('../images/product-detail/link-icon-source.png');
}

.product-detail__feature-text {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
}

.product-detail__images-row {
  display: flex;
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .product-detail__upper {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .product-detail__right {
    align-items: center;
  }

  .product-detail__logo {
    width: var(--size-logo-md);
    height: var(--size-logo-md);
  }

  .product-detail__video,
  .product-detail__image.large {
    width: 100%;
    max-width: var(--size-video-width);
  }

  .product-detail__lower {
    gap: var(--spacing-xl);
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .product-detail {
    padding: calc(var(--navbar-height) + 10px) var(--spacing-sm) var(--spacing-lg);
  }

  .product-detail__upper {
    gap: var(--spacing-md);
  }

  .product-detail__logo {
    width: var(--size-logo-sm);
    height: var(--size-logo-sm);
  }

  .product-detail__video {
    width: 100%;
    height: 200px;
  }

  .product-detail__image {
    width: 100%;
    height: 150px;
  }

  .product-detail__lower {
    gap: var(--spacing-lg);
  }

  .product-detail__feature {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .product-detail__feature-icon {
    width: 40px;
    height: 40px;
  }

  .product-detail__feature-text {
    font-size: var(--font-size-sm);
  }
}