.product-detail-hero {
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(7.2rem, 11vw, 8.8rem) 16px clamp(2.4rem, 4vw, 3rem);
}

.product-detail-hero::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: var(--border-radius-xl);
  background-color: #1a1a1a;
  z-index: 0;
}

.product-detail-hero__bg {
  position: absolute;
  inset: 18px;
  width: calc(100% - 36px);
  height: calc(100% - 36px);
  object-fit: cover;
  object-position: center;
  border-radius: var(--border-radius-xl);
  z-index: 0;
}

.product-detail-hero::after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: var(--border-radius-xl);
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.22) 0%, rgba(10, 10, 10, 0.62) 100%);
  z-index: 1;
}

.product-detail-hero__container {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
}

.product-detail-hero__content {
  display: grid;
  justify-items: center;
  gap: 1.1rem;
  max-width: 980px;
}

.product-detail-hero__topline {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  width: fit-content;
  margin: 0 auto;
  padding: 0.6rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
}

.product-detail-hero__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
}

.product-detail-hero__breadcrumb .breadcrumb__link,
.product-detail-hero__breadcrumb .breadcrumb__separator {
  color: rgba(255, 255, 255, 0.72);
}

.product-detail-hero__breadcrumb .breadcrumb__current {
  color: #ffffff;
}

.product-detail-hero__code {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding-left: 0.85rem;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.product-detail-hero__title {
  margin: 0;
  max-width: min(20ch, 100%);
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #ffffff;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-detail-main {
  background: #ffffff;
  padding-top: clamp(2rem, 4vw, 3rem);
}

.product-detail-main__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(340px, 0.94fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: start;
}

.product-detail-gallery__frame {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 1rem;
}

.product-detail-gallery__rail {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0.6rem;
  align-self: start;
}

.product-detail-gallery__thumbnails {
  display: grid;
  gap: 0.8rem;
  grid-auto-rows: 88px;
  align-content: start;
  height: calc((88px * 5) + (0.8rem * 4));
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.product-detail-gallery__thumbnails::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.product-detail-gallery__nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: #faf7f3;
  color: #6a645c;
  box-shadow: 0 8px 18px rgba(13, 13, 13, 0.05);
  transition: background-color var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
  font-size: 0;
  line-height: 0;
}

.product-detail-gallery__nav::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.product-detail-gallery__nav--up::before {
  transform: rotate(225deg);
  margin-top: 4px;
}

.product-detail-gallery__nav--down::before {
  transform: rotate(45deg);
  margin-bottom: 4px;
}

.product-detail-gallery__nav:hover:not(:disabled) {
  background: #f3efea;
  color: #111111;
}

.product-detail-gallery__nav:disabled {
  opacity: 0.34;
  cursor: default;
}

.product-detail-gallery__nav.is-hidden {
  visibility: hidden;
  pointer-events: none;
}

.product-detail-gallery__thumb {
  display: block;
  width: 88px;
  height: 88px;
  padding: 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(13, 13, 13, 0.05);
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-detail-gallery__thumb.is-active {
  border-color: rgba(221, 55, 57, 0.36);
  box-shadow: 0 12px 28px rgba(221, 55, 57, 0.12);
}

.product-detail-gallery__thumb:hover {
  transform: translateY(-1px);
}

.product-detail-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), filter 320ms ease;
}

.product-detail-gallery__image {
  display: block;
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: opacity 320ms ease, transform 420ms cubic-bezier(0.22, 1, 0.36, 1), filter 420ms ease;
}

.product-detail-gallery__stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: linear-gradient(180deg, #faf7f3 0%, #f2ece5 100%);
  aspect-ratio: 1 / 1;
  box-shadow: 0 20px 48px rgba(13, 13, 13, 0.06);
}

.product-detail-gallery__image--fade {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: scale(1.025);
}

.product-detail-gallery__image--fade.is-visible {
  opacity: 1;
  transform: scale(1);
}

.product-detail-gallery__stage.is-switching .product-detail-gallery__image:not(.product-detail-gallery__image--fade) {
  filter: saturate(0.95);
  transform: scale(1.01);
}

.product-detail-summary {
  display: grid;
  align-content: center;
  gap: 1rem;
  min-height: 100%;
}

.product-detail-summary__title {
  margin: 0;
  color: #111111;
  font-size: clamp(1.5rem, 2.4vw, 2.15rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.product-detail-summary__desc {
  margin: 0;
  color: rgba(17, 17, 17, 0.66);
  font-size: 1.03rem;
  line-height: 1.8;
}

.product-detail-summary__features {
  display: grid;
  gap: 0.7rem;
  margin: 0.15rem 0 0;
  padding: 0;
}

.product-detail-summary__features li {
  position: relative;
  padding-left: 1.4rem;
  color: rgba(17, 17, 17, 0.72);
  font-size: 0.98rem;
  line-height: 1.7;
}

.product-detail-summary__features li::before {
  content: "";
  position: absolute;
  top: 0.7rem;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-primary);
}

.product-detail-summary__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.product-detail-summary__chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.52rem 0.88rem;
  border-radius: 999px;
  background: #faf7f3;
  border: 1px solid rgba(17, 17, 17, 0.08);
  color: #37332f;
  font-size: 0.88rem;
  font-weight: var(--fw-medium);
}

.product-detail-summary__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.2rem;
}

.product-detail-body {
  background: #ffffff;
  padding-top: 0;
}

.product-detail-body__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 360px);
  gap: clamp(1.4rem, 3vw, 2.2rem);
  align-items: start;
}

.product-detail-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.product-detail-tabs__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.68rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  background: #ffffff;
  color: rgba(17, 17, 17, 0.74);
  font-size: 0.94rem;
  font-weight: var(--fw-semibold);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.product-detail-tabs__btn.is-active {
  background: #111111;
  border-color: #111111;
  color: #ffffff;
}

.product-detail-tabs__panel {
  display: none;
  padding: clamp(1.35rem, 2vw, 1.7rem);
  border-radius: 28px;
  background: #ffffff;
  border: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: 0 18px 40px rgba(13, 13, 13, 0.05);
}

.product-detail-tabs__panel.is-active {
  display: block;
}

.product-detail-richtext {
  display: grid;
  gap: 1rem;
}

.product-detail-richtext h2,
.product-detail-richtext h3 {
  margin: 0;
  color: #111111;
  letter-spacing: -0.02em;
}

.product-detail-richtext h2 {
  font-size: clamp(1.45rem, 2.2vw, 1.95rem);
  line-height: 1.18;
}

.product-detail-richtext h3 {
  font-size: clamp(1.08rem, 1.6vw, 1.32rem);
  line-height: 1.3;
}

.product-detail-richtext p,
.product-detail-richtext li {
  color: rgba(17, 17, 17, 0.68);
  font-size: 1rem;
  line-height: 1.78;
}

.product-detail-richtext ul {
  display: grid;
  gap: 0.7rem;
  padding-left: 1.2rem;
}

.product-detail-richtext strong {
  color: #111111;
}

.product-detail-richtext figure {
  margin: 0;
  overflow: hidden;
  border-radius: 22px;
  background: #faf7f3;
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.product-detail-richtext__media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.product-detail-richtext figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.product-detail-richtext figcaption {
  padding: 0.9rem 1rem 1rem;
  color: rgba(17, 17, 17, 0.62);
  font-size: 0.92rem;
  line-height: 1.65;
}

.product-detail-richtext table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 18px;
  border-style: hidden;
  box-shadow: 0 0 0 1px rgba(17, 17, 17, 0.08);
}

.product-detail-richtext th,
.product-detail-richtext td {
  padding: 0.92rem 1rem;
  border: 1px solid rgba(17, 17, 17, 0.08);
  text-align: left;
  vertical-align: top;
}

.product-detail-richtext th {
  background: #f8f5f1;
  color: #111111;
  font-size: 0.92rem;
  font-weight: var(--fw-semibold);
}

.product-detail-richtext td {
  color: rgba(17, 17, 17, 0.68);
  font-size: 0.96rem;
}

.product-detail-faq {
  display: grid;
  gap: 0.9rem;
}

.product-detail-faq__item {
  padding: 1rem 1.05rem;
  border-radius: 20px;
  background: #faf7f3;
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.product-detail-faq__question {
  margin: 0 0 0.45rem;
  color: #111111;
  font-size: 1rem;
  line-height: 1.45;
}

.product-detail-faq__answer {
  margin: 0;
  color: rgba(17, 17, 17, 0.68);
  font-size: 0.96rem;
  line-height: 1.72;
}

.product-detail-sidebar {
  position: sticky;
  top: calc(72px + var(--space-8));
}

.product-detail-inquiry-card {
  padding: clamp(1.25rem, 2vw, 1.5rem);
  border-radius: 24px;
  background: #ffffff;
  border: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: 0 26px 52px rgba(13, 13, 13, 0.08);
}

.product-detail-inquiry-card__title {
  margin: 0;
  color: #111111;
  font-size: clamp(1.5rem, 2vw, 1.85rem);
  line-height: 1.14;
}

.product-detail-inquiry-card__text {
  margin: 0.55rem 0 1rem;
  color: rgba(17, 17, 17, 0.62);
  font-size: 0.95rem;
  line-height: 1.68;
}

.product-detail-inquiry-form {
  display: grid;
  gap: 0.82rem;
}

.product-detail-inquiry-form__field {
  display: grid;
  gap: 0.38rem;
}

.product-detail-inquiry-form__field label {
  color: #515151;
  font-size: 0.82rem;
  font-weight: var(--fw-semibold);
}

.product-detail-inquiry-form__field input,
.product-detail-inquiry-form__field textarea {
  width: 100%;
  border: 1px solid #d9ddd7;
  border-radius: 12px;
  padding: 0.88rem 0.95rem;
  background: #fff;
  color: #111111;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.product-detail-inquiry-form__field textarea {
  min-height: 132px;
  resize: vertical;
}

.product-detail-inquiry-form__field input:focus,
.product-detail-inquiry-form__field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(221, 55, 57, 0.12);
}

.product-detail-inquiry-form__submit {
  width: 100%;
  min-height: 52px;
  margin-top: 0.15rem;
}

@media (max-width: 1180px) {
  .product-detail-main__layout,
  .product-detail-body__layout {
    grid-template-columns: 1fr;
  }

  .product-detail-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .product-detail-hero {
    min-height: 50vh;
    padding-top: 7.1rem;
  }

  .product-detail-hero::before {
    inset: 10px;
    border-radius: 22px;
  }

  .product-detail-hero__bg {
    inset: 10px;
    width: calc(100% - 20px);
    height: calc(100% - 20px);
    border-radius: 22px;
  }

  .product-detail-hero::after {
    inset: 10px;
    border-radius: 22px;
  }

  .product-detail-hero__title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .product-detail-hero__topline {
    padding: 0.55rem 0.9rem;
  }

  .product-detail-hero__code {
    padding-left: 0.7rem;
  }

  .product-detail-gallery__frame {
    grid-template-columns: 1fr;
  }

  .product-detail-gallery__rail {
    grid-template-rows: none;
  }

  .product-detail-gallery__thumbnails {
    grid-auto-flow: column;
    grid-auto-columns: 72px;
    grid-auto-rows: auto;
    height: auto;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 0.2rem;
    padding-right: 0;
  }

  .product-detail-gallery__nav {
    display: none;
  }

  .product-detail-gallery__thumb {
    width: 72px;
    height: 72px;
  }

  .product-detail-richtext__media-grid {
    grid-template-columns: 1fr;
  }

  .product-detail-tabs__panel,
  .product-detail-inquiry-card {
    border-radius: 22px;
  }
}

@media (max-width: 480px) {
  .product-detail-tabs__panel,
  .product-detail-inquiry-card {
    padding: 1.15rem;
  }

  .product-detail-richtext th,
  .product-detail-richtext td {
    padding: 0.78rem 0.82rem;
  }
}