/* ==========================================================================
   产品详情页：产品中心二级资料页
   ========================================================================== */

.product-subpage {
  position: relative;
  min-height: 100vh;
  padding-top: var(--header-h);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: #081220;
}

.product-subpage__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(5, 16, 30, 0.96) 0%, rgba(8, 29, 48, 0.84) 52%, rgba(12, 52, 55, 0.36) 100%),
    var(--xf-products-hero-bg, none);
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.product-subpage__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-block: 7.2rem;
}

.product-subpage__copy h1 {
  max-width: 86rem;
  color: #fff;
  font-size: var(--fs-display);
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.product-subpage__copy p {
  max-width: 68rem;
  color: #c5d5e2;
  font-size: var(--fs-lg);
  line-height: 1.85;
  margin-bottom: var(--space-4);
}

.product-subpage__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
}

.product-breadcrumb-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  margin-top: calc(var(--section-pad) * -1);
  margin-bottom: calc(var(--section-pad) * 0.62);
  background: #fff;
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 1rem 2.4rem rgba(8, 26, 42, 0.06);
  scroll-margin-top: calc(var(--header-h) + 1.6rem);
}

.product-breadcrumb {
  min-height: 5.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: flex-start;
  color: #53677a;
  font-size: var(--fs-sm);
  font-weight: 900;
}

.product-breadcrumb a {
  color: var(--color-cta);
}

.product-breadcrumb span::before,
.product-breadcrumb strong::before {
  content: "/";
  margin-right: 0.8rem;
  color: #b9c5d0;
}

.product-breadcrumb strong {
  color: var(--color-ink);
}

.product-intro {
  display: grid;
  grid-template-columns: minmax(34rem, 0.84fr) minmax(0, 1fr);
  gap: 3.2rem;
  align-items: stretch;
  margin-bottom: 5.2rem;
}

.product-intro__media {
  display: grid;
  grid-template-rows: minmax(28rem, 1fr) auto;
  gap: 1.4rem;
}

.product-gallery-main,
.product-gallery-thumbs figure,
.product-story-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.product-gallery-main {
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-gallery-main img,
.product-gallery-thumbs img,
.product-story-card img {
  width: 100%;
  object-fit: cover;
}

.product-gallery-main img {
  min-height: 34rem;
  flex: 1;
}

.product-gallery-main figcaption,
.product-gallery-thumbs figcaption {
  position: absolute;
  left: 1.4rem;
  bottom: 1.4rem;
  padding: 0.58rem 1rem;
  border-radius: var(--radius-pill);
  background: rgba(7, 20, 34, 0.74);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 900;
  backdrop-filter: blur(10px);
}

.product-gallery-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.product-gallery-thumbs figure {
  position: relative;
  min-height: 12rem;
}

.product-gallery-thumbs img {
  height: 12rem;
}

.product-intro__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(2.2rem, 3.2vw, 4rem);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, #ffffff 0%, #f8fbfd 70%, rgba(0, 212, 180, 0.08) 100%);
  border: 1px solid var(--color-line);
  box-shadow: 0 2rem 5.2rem rgba(8, 26, 42, 0.07);
}

.product-intro__label {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.4rem;
}

.product-kicker {
  display: inline-flex;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-pill);
  background: rgba(0, 212, 180, 0.1);
  color: var(--color-cta);
  font-size: var(--fs-xs);
  font-weight: 900;
}

.product-intro__mark {
  color: #9aaabb;
  font-size: var(--fs-xs);
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-intro h2 {
  max-width: 78rem;
  color: var(--color-ink);
  font-size: var(--fs-h1);
  line-height: 1.16;
  margin-bottom: 1.2rem;
}

.product-intro__lead {
  max-width: 72rem;
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.85;
}

.product-solve {
  margin-top: 1.8rem;
  padding: 1.5rem 1.6rem;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--color-line);
}

.product-solve span {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--color-cta);
  font-size: var(--fs-xs);
  font-weight: 900;
}

.product-solve p {
  color: var(--color-ink);
  font-size: var(--fs-base);
  line-height: 1.75;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.product-tags span {
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(175, 192, 207, 0.68);
  color: var(--color-text);
  font-size: var(--fs-sm);
  font-weight: 800;
}

.profile-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.product-purchase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  align-items: stretch;
  margin-top: 1.2rem;
}

.product-purchase__data {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.product-purchase__data div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  min-width: 0;
  padding: 1.05rem 1.2rem;
  border-radius: var(--radius-sm);
  background: #fff;
  border: 1px solid rgba(0, 200, 150, 0.28);
}

.product-purchase__data span {
  display: inline-block;
  color: var(--color-text-light);
  font-size: var(--fs-xs);
  font-weight: 900;
  white-space: nowrap;
}

.product-purchase__data strong {
  min-width: 0;
  color: var(--color-ink);
  font-size: var(--fs-sm);
  line-height: 1.35;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-purchase__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.4rem;
}

.product-purchase__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 5.2rem;
  padding: 1.35rem 1.6rem;
  border-radius: var(--radius-sm);
  font-size: var(--fs-base);
  font-weight: 900;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

@media (hover: hover) {
  .product-purchase__btn:hover {
    transform: translateY(-2px);
  }
}

.product-purchase__btn--phone {
  color: #fff;
  background: #071827;
  box-shadow: 0 1.2rem 2.6rem rgba(7, 24, 39, 0.18);
}

.product-purchase__btn--demand {
  color: #042b22;
  background: var(--grad-accent);
  box-shadow: var(--shadow-accent);
}

.profile-meta__item {
  min-height: auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  min-width: 0;
  padding: 1.05rem 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.76);
}

.profile-meta__item span {
  display: inline-block;
  color: var(--color-text-light);
  font-size: var(--fs-xs);
  font-weight: 900;
  white-space: nowrap;
}

.profile-meta__item strong {
  display: block;
  min-width: 0;
  color: var(--color-ink);
  font-size: var(--fs-sm);
  line-height: 1.55;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-record {
  background: #fff;
}

.product-story {
  margin-bottom: 2.4rem;
}

.product-story__head {
  max-width: 82rem;
  margin-bottom: 2.4rem;
}

.product-story__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.product-story-card {
  display: grid;
  grid-template-rows: 22rem 1fr;
}

.product-story-card img {
  height: 22rem;
}

.product-story-card div {
  padding: 2.2rem;
}

.product-story-card span {
  color: var(--color-cta);
  font-size: var(--fs-xs);
  font-weight: 900;
}

.product-story-card h3 {
  color: var(--color-ink);
  font-size: var(--fs-h4);
  line-height: 1.38;
  margin: 0.8rem 0;
}

.product-story-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.product-longcopy {
  margin-top: 1.6rem;
  padding: clamp(2.4rem, 3.6vw, 4rem);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, #ffffff 0%, #f7fbfd 78%, rgba(0, 212, 180, 0.08) 100%);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.product-longcopy__body {
  display: grid;
  gap: 1.4rem;
}

.product-longcopy__body p {
  color: var(--color-text-muted);
  font-size: var(--fs-md);
  line-height: 1.95;
}

.product-related {
  margin-top: 4rem;
  padding: clamp(2.4rem, 3.4vw, 4rem);
  border-radius: var(--radius-lg);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-line);
}

.product-related__head {
  max-width: 78rem;
  margin-bottom: 2.4rem;
}

.product-related__head p {
  color: var(--color-text-muted);
  font-size: var(--fs-md);
  line-height: 1.8;
  margin-top: 1rem;
}

.product-related__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.product-related-card {
  min-height: 100%;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-line);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

@media (hover: hover) {
  .product-related-card:hover {
    transform: translateY(-0.4rem);
    border-color: rgba(0, 200, 150, 0.38);
    box-shadow: 0 1.8rem 4rem rgba(8, 26, 42, 0.1);
  }
}

.product-related-card a {
  display: grid;
  grid-template-rows: 18rem 1fr;
  height: 100%;
}

.product-related-card img {
  width: 100%;
  height: 18rem;
  object-fit: cover;
}

.product-related-card div {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 2rem;
}

.product-related-card span {
  color: var(--color-cta);
  font-size: var(--fs-xs);
  font-weight: 900;
  margin-bottom: 0.8rem;
}

.product-related-card h3 {
  color: var(--color-ink);
  font-size: var(--fs-h4);
  line-height: 1.38;
  margin-bottom: 0.8rem;
}

.product-related-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.75;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.product-related-card em {
  margin-top: auto;
  padding-top: 1.4rem;
  color: var(--color-text);
  font-size: var(--fs-xs);
  font-style: normal;
  font-weight: 900;
}

.product-inquiry {
  color: var(--color-text-inverse);
  background: var(--grad-dark);
}

.product-inquiry__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(42rem, 1.18fr);
  gap: 4rem;
  align-items: start;
}

.inquiry-copy h2 {
  color: var(--color-text-inverse);
  font-size: var(--fs-h2);
  line-height: 1.25;
  margin-bottom: var(--space-2);
}

.inquiry-copy p {
  max-width: 54rem;
  color: var(--color-dark-copy-subtle);
  font-size: var(--fs-lg);
  line-height: 1.8;
}

@media (max-width: 1120px) {
  .product-breadcrumb-bar {
    margin-bottom: 2.4rem;
  }

  .product-intro,
  .product-inquiry__inner {
    grid-template-columns: 1fr;
  }

  .product-intro__media {
    grid-template-rows: auto auto;
  }

  .product-gallery-main {
    height: 34rem;
  }

  .product-gallery-main img {
    height: 100%;
    min-height: 0;
    flex: none;
  }

}

@media (max-width: 960px) {
  .product-story__grid,
  .product-related__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .product-subpage {
    min-height: 100svh;
  }

  .product-subpage__inner {
    padding-block: 5.6rem;
  }

  .product-breadcrumb {
    justify-content: flex-start;
    min-height: 5.2rem;
    overflow-x: auto;
    flex-wrap: nowrap;
    scrollbar-width: none;
  }

  .product-breadcrumb::-webkit-scrollbar {
    display: none;
  }

  .product-intro {
    margin-bottom: 2.4rem;
    gap: 2rem;
  }

  .product-intro__content {
    padding: 2.4rem;
  }

  .product-gallery-main {
    height: auto;
  }

  .product-gallery-main img {
    height: 24rem;
    min-height: 0;
    flex: none;
  }

  .product-gallery-thumbs {
    grid-template-columns: 1fr;
  }

  .product-story-card {
    grid-template-rows: 16rem 1fr;
  }

  .product-gallery-thumbs figure,
  .product-gallery-thumbs img,
  .product-story-card img {
    height: 16rem;
    min-height: 16rem;
  }

  .profile-meta,
  .product-purchase__data,
  .product-purchase__actions {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 560px) {
  .product-story__grid,
  .product-related__grid {
    grid-template-columns: 1fr;
  }
}