/* ==========================================================================
   产品中心页面
   ========================================================================== */

.products-hero {
  background: #081220;
}

.products-hero__bg {
  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;
}

.products-hero__inner {
  width: 100%;
  padding-block: 7.2rem;
}

.products-hero__copy h1 {
  max-width: 86rem;
  font-size: var(--fs-display);
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.products-hero__copy p {
  max-width: 68rem;
  color: #c5d5e2;
  margin-bottom: var(--space-4);
}

.products-hero__actions {
  gap: 1.4rem;
}

.product-options {
  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);
}

.product-options__inner {
  min-height: 5.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(2.4rem, 5vw, 6.4rem);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.product-options__item {
  position: relative;
  flex: 0 0 auto;
  min-height: 4rem;
  padding: 0 0.2rem;
  color: #53677a;
  font-size: var(--fs-sm);
  font-weight: 900;
  white-space: nowrap;
  cursor: pointer;
}

.product-options__item::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: -0.8rem;
  height: 0.3rem;
  border-radius: var(--radius-pill);
  background: var(--color-cta);
  transition: left var(--dur) var(--ease), right var(--dur) var(--ease);
}

.product-options__item.is-active {
  color: var(--color-primary);
}

@media (hover: hover) {
  .product-options__item:hover {
    color: var(--color-primary);
  }
}

.product-options__item.is-active::after {
  left: 0;
  right: 0;
}

.product-options__item:focus-visible {
  outline: 3px solid rgba(0, 200, 150, 0.28);
  outline-offset: 0.6rem;
}

.product-catalog {
  background: #fff;
}

.catalog-shell {
  display: block;
}

.catalog-main {
  min-width: 0;
}

.catalog-head {
  max-width: 76rem;
  margin-inline: auto;
  margin-bottom: 2.4rem;
  text-align: center;
}

.catalog-groups {
  display: grid;
  gap: 3rem;
}

.catalog-group {
  display: grid;
  gap: 1.4rem;
  scroll-margin-top: calc(var(--header-h) + 8.8rem);
}

.catalog-group.is-hidden {
  display: none;
}

.catalog-group__head {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--color-line);
}

.catalog-group__head span {
  color: var(--color-cta);
  font-size: var(--fs-h4);
  font-weight: 900;
}

.catalog-group__head h3 {
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.75;
  font-weight: 500;
}

.catalog-group__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.catalog-card {
  display: grid;
  grid-template-columns: 17.5rem minmax(0, 1fr);
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.catalog-card.reveal {
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

@media (hover: hover) {
  .catalog-card:hover {
    transform: translateY(-0.3rem);
    border-color: rgba(0, 200, 150, 0.42);
    box-shadow: var(--shadow-md);
  }
}

.catalog-card.is-hidden {
  display: none;
}

.catalog-card picture {
  display: block;
  min-height: 100%;
  background: var(--color-bg-metal);
}

.catalog-card img {
  width: 100%;
  height: 100%;
  min-height: 22rem;
  object-fit: cover;
}

.catalog-card__body {
  display: flex;
  flex-direction: column;
  padding: 2rem;
}

.catalog-card__top {
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 1rem;
}

.catalog-card__cat,
.catalog-card__target {
  display: inline-flex;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 900;
}

.catalog-card__cat {
  padding: 0.4rem 0.9rem;
  background: rgba(0, 212, 180, 0.1);
  color: var(--color-cta);
}

.catalog-card__target {
  padding: 0.4rem 0;
  color: var(--color-text-light);
}

.catalog-card h3 {
  color: var(--color-ink);
  font-size: 2.1rem;
  line-height: 1.35;
  margin-bottom: 0.7rem;
}

.catalog-card__meta {
  color: var(--color-primary-soft);
  font-size: var(--fs-sm);
  font-weight: 800;
  margin-bottom: 0.9rem;
}

.catalog-card p:not(.catalog-card__meta) {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.catalog-card__tags {
  gap: 0.7rem;
  margin-block: 1.4rem 1.8rem;
}

.catalog-card__tags span {
  padding: 0.42rem 0.84rem;
  border-radius: var(--radius-pill);
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
  font-weight: 800;
}

.catalog-card .link-arrow {
  margin-top: auto;
}

.selection-guide {
  background: linear-gradient(180deg, #f5f8fb 0%, #eef4f7 100%);
}

.selection-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.6rem;
}

.selection-card {
  min-height: 23rem;
  padding: 2.4rem;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.selection-card span {
  display: inline-flex;
  margin-bottom: 1.6rem;
  color: var(--color-cta);
  font-size: var(--fs-sm);
  font-weight: 900;
}

.selection-card h3 {
  color: var(--color-ink);
  font-size: var(--fs-h4);
  line-height: 1.4;
  margin-bottom: 1rem;
}

.selection-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.product-consult {
  position: relative;
  overflow: hidden;
  background: var(--grad-dark);
}

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

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

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

@media (max-width: 1200px) {
  .product-consult__inner {
    grid-template-columns: 1fr;
  }

  .selection-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1120px) {
  .catalog-group__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .products-hero__inner {
    gap: 3.2rem;
    padding-block: 5.6rem;
  }

  .products-hero__actions,
  .catalog-group__head,
  .catalog-card,
  .selection-grid {
    grid-template-columns: 1fr;
  }

  .products-hero__actions {
    display: grid;
  }

  .products-hero__actions .btn {
    width: 100%;
  }

  .catalog-card img {
    min-height: 0;
    height: 100%;
  }

  .catalog-card picture {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }

  .catalog-group__head {
    gap: 0.8rem;
  }
}