/* 产品详情页 */

.home-wrap {
  max-width: var(--container-width, 1400px);
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 576px) {
  .home-wrap {
    padding: 0 16px;
  }
}

/* ---------- 详情首屏：图库 + 信息 ---------- */

.product-detail-hero {
  padding: 40px 0 72px;
  background: var(--color-bg, #fff);
}

.product-detail-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 48px 56px;
  align-items: start;
}

/* 左侧图库 */
.product-detail-gallery__main {
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--color-bg-muted, #f5f6f8);
  border: 1px solid var(--color-border, #e8ecf0);
}

.product-detail-gallery__main img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #fff;
}

.product-detail-gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail-gallery__thumb {
  margin: 0;
  padding: 0;
}

.product-detail-gallery__thumb-btn {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.product-detail-gallery__thumb-btn:hover {
  border-color: #c0c8d0;
}

.product-detail-gallery__thumb-btn.is-active {
  border-color: #c0c8d0;
}

.product-detail-gallery__thumb-btn img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* 右侧信息 */
.product-detail-breadcrumb {
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-secondary, #5a6a7a);
}

.product-detail-breadcrumb a {
  color: var(--color-text-secondary, #5a6a7a);
}

.product-detail-breadcrumb a:hover {
  color: var(--color-primary);
}

.product-detail-breadcrumb__sep {
  margin: 0 6px;
  color: #c0c8d0;
}

.product-detail-breadcrumb [aria-current="page"] {
  color: var(--color-heading, #1e2a38);
}

.product-detail-title {
  margin: 0 0 20px;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-heading, #1e2a38);
}

.product-detail-divider {
  margin: 0 0 28px;
  border: none;
  border-top: 1px solid var(--color-border, #e8ecf0);
}

.product-detail-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px 32px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.product-detail-specs__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  align-items: center;
}

.product-detail-specs__item--no-icon {
  gap: 0;
}

.product-detail-specs__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-heading, #1e2a38);
}

.product-detail-specs__icon svg,
.product-detail-specs__icon img {
  display: block;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.product-detail-specs__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.45;
  color: var(--color-text, #2d3a4a);
}

.product-detail-specs__text strong {
  font-weight: 700;
  color: var(--color-heading, #1e2a38);
}

.product-detail-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.product-detail-cta-row .product-detail-cta {
  margin-bottom: 0;
}

.product-detail-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  margin-bottom: 36px;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-button, 4px);
  transition: background 0.2s ease;
}

.product-detail-cta:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.product-detail-desc {
  font-size: var(--font-size-base, 16px);
  line-height: 1.7;
  color: var(--color-text, #2d3a4a);
}

.product-detail-desc__block + .product-detail-desc__block {
  margin-top: 24px;
}

.product-detail-desc__heading {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-heading, #1e2a38);
}

.product-detail-desc__block p {
  margin: 0;
}

@media (max-width: 992px) {
  .product-detail-hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-detail-gallery {
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
  }
}

@media (max-width: 576px) {
  .product-detail-hero {
    padding: 24px 0 48px;
  }

  .product-detail-specs {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .product-detail-gallery__thumbs {
    gap: 8px;
  }
}

/* ---------- 规格参数表 ---------- */

.product-detail-spec-table {
  padding: 0 0 64px;
  background: var(--color-bg, #fff);
}

.product-spec-table__table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border, #e8ecf0);
}

.product-spec-table__table th,
.product-spec-table__table td {
  padding: 14px 20px;
  font-size: 15px;
  line-height: 1.5;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border, #e8ecf0);
}

.product-spec-table__table tbody tr:nth-child(odd) {
  background: #fff;
}

.product-spec-table__table tbody tr:nth-child(even) {
  background: var(--color-bg-muted, #f5f6f8);
}

.product-spec-table__table th {
  width: 38%;
  font-weight: 700;
  color: var(--color-heading, #1e2a38);
}

.product-spec-table__table td {
  color: var(--color-text, #2d3a4a);
}

.product-spec-table__table td em {
  font-style: italic;
  font-weight: 400;
}

/* ---------- FAQ 手风琴 ---------- */

.product-detail-faq {
  padding: 56px 0 72px;
  background: var(--color-bg, #fff);
}

.product-detail-faq__title {
  margin: 0 0 40px;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
  color: var(--color-heading, #1e2a38);
}

.product-detail-faq__list {
  width: 100%;
  max-width: none;
  margin: 0;
}

.product-detail-faq__item {
  border: 1px solid var(--color-border, #e8ecf0);
}

.product-detail-faq__item + .product-detail-faq__item {
  margin-top: -1px;
}

.product-detail-faq__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  margin: 0;
  padding: 18px 22px;
  font: inherit;
  font-size: 16px;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text, #2d3a4a);
  background: #fff;
  border: none;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.product-detail-faq__trigger:hover {
  color: var(--color-heading, #1e2a38);
  background: var(--color-bg-muted, #f5f6f8);
}

.product-detail-faq__question {
  flex: 1;
  min-width: 0;
}

.product-detail-faq__arrow {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  margin-top: -4px;
  border-right: 2px solid var(--color-heading, #1e2a38);
  border-bottom: 2px solid var(--color-heading, #1e2a38);
  transform: rotate(45deg);
  transition: transform 0.35s ease, margin 0.35s ease;
}

.product-detail-faq__item.is-open .product-detail-faq__arrow {
  margin-top: 4px;
  transform: rotate(-135deg);
}

.product-detail-faq__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease;
}

.product-detail-faq__item.is-open .product-detail-faq__panel {
  grid-template-rows: 1fr;
}

.product-detail-faq__panel-inner {
  overflow: hidden;
}

.product-detail-faq__panel-inner p {
  margin: 0;
  padding: 0 22px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary, #5a6a7a);
}

@media (prefers-reduced-motion: reduce) {
  .product-detail-faq__panel,
  .product-detail-faq__arrow {
    transition: none;
  }
}

/* ---------- 底部 CTA ---------- */

.product-detail-cta-banner {
  padding: 56px 0 72px;
  background: var(--color-bg-muted, #f5f6f8);
}

.product-detail-cta-banner__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.product-detail-cta-banner__title {
  margin: 0 0 28px;
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-heading, #1e2a38);
}

.product-detail-cta-banner__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  padding: 12px 36px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-button, 4px);
  transition: background 0.2s ease;
}

.product-detail-cta-banner__btn:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

@media (max-width: 576px) {
  .product-detail-spec-table {
    padding-bottom: 48px;
  }

  .product-spec-table__table th,
  .product-spec-table__table td {
    padding: 12px 14px;
    font-size: 14px;
  }

  .product-spec-table__table th {
    width: 42%;
  }

  .product-detail-faq {
    padding: 40px 0 56px;
  }

  .product-detail-faq__title {
    margin-bottom: 28px;
  }

  .product-detail-faq__trigger {
    padding: 16px;
    font-size: 15px;
  }

  .product-detail-faq__panel-inner p {
    padding: 0 16px 16px;
  }

  .product-detail-cta-banner {
    padding: 40px 0 56px;
  }
}