/* Products page */
.products-page {
  position: relative;
  background-color: #fff;
}

.products-banner {
  position: relative;
  width: 100%;
  height: 460px;
  overflow: hidden;
  background-color: var(--color-gray-light);
}

.products-banner__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.products-banner__img--mobile {
  display: none;
}

/* Section title: 产品 / 亮点产品 */
.products-section-title {
  margin: 0;
  font-size: 36px;
  font-weight: var(--font-weight-body);
  line-height: 1.2;
  color: var(--color-primary);
}

/* Body layout */
.products-body {
  padding: 48px 0 56px;
}

.products-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  grid-template-rows: auto auto;
  column-gap: var(--layout-gap);
  row-gap: 32px;
}

.products-sidebar,
.products-main {
  display: contents;
}

.products-sidebar__title {
  grid-column: 1;
  grid-row: 1;
  align-self: start;
}

.products-sidebar__groups {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.products-sidebar__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.products-sidebar__group a {
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.5;
  color: var(--color-text);
  transition: color 0.3s;
}

.products-sidebar__group a:hover,
.products-sidebar__group a.is-active {
  color: var(--color-primary);
}

.products-filter {
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.products-main__content {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
}

.products-filter__list {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 28px 36px;
}

.products-filter__item {
  display: flex;
  flex-direction: column;
}

.products-filter__trigger,
.products-filter__sub-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 88px;
  padding: 0;
  border: none;
  background: none;
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.5;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.3s;
}

.products-filter__trigger {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-black);
  white-space: nowrap;
  color: var(--color-black);
}

.products-filter__trigger.is-active,
.products-filter__trigger:hover {
  color: var(--color-primary);
}

.products-filter__sub-item {
  font-size: 13px;
  color: var(--color-text);
}

.products-filter__sub-item.is-active,
.products-filter__sub-item:hover {
  color: var(--color-primary);
}

.products-filter__check {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(0, 0, 0, 0.4);
  background-color: #fff;
}

.products-filter__trigger.is-active .products-filter__check,
.products-filter__sub-item.is-active .products-filter__check {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.products-filter__sub {
  display: none;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.products-filter__item.is-expanded .products-filter__sub {
  display: flex;
}

.products-filter__back {
  flex-shrink: 0;
  margin-left: auto;
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.5;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.3s;
}

.products-filter__back:hover {
  color: var(--color-primary);
}

/* Product grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--layout-gap);
}

.products-card__link {
  display: block;
  color: inherit;
}

.products-card__image {
  position: relative;
  aspect-ratio: 523 / 361;
  overflow: hidden;
  isolation: isolate;
  background-color: var(--color-gray-light);
}

.products-card__img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  transition: opacity 0.35s ease;
}

.products-card__img--default {
  z-index: 1;
  opacity: 1;
}

.products-card__img--hover {
  z-index: 2;
  opacity: 0;
}

.products-card:hover .products-card__img--default {
  opacity: 0;
}

.products-card:hover .products-card__img--hover {
  opacity: 1;
}

.products-card__name {
  margin-top: 12px;
  font-size: 13px;
  font-weight: var(--font-weight-body);
  line-height: 1.5;
  color: var(--color-text);
  text-align: left;
}

/* Pager */
.products-pager {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.products-pager__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background-color: #737373;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.3s;
}

.products-pager__btn::after {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  margin: 0;
  background: url("../images/arrow-right.svg") no-repeat center;
  background-size: contain;
}

.products-pager__btn--prev::after {
  transform: scaleX(-1);
}

.products-pager__btn:hover:not(.is-disabled) {
  background-color: #404040;
}

/* Highlights */
.products-highlights {
  padding: 0 0 80px;
}

.products-highlights__title {
  margin-bottom: 32px;
}

.products-highlights__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--layout-gap);
}

.products-highlight__image {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 523 / 361;
  background-color: var(--color-gray-light);
}

.products-highlight__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #000;
  opacity: 0.3;
  transition: opacity 0.45s ease;
  pointer-events: none;
}

.products-highlight:hover .products-highlight__image::after {
  opacity: 0;
}

.products-highlight__image img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.products-highlight__name {
  margin-top: 16px;
  margin-bottom: 12px;
  font-size: 16px;
  font-weight: var(--font-weight-title);
  line-height: 1.5;
  color: var(--color-black);
}

.products-highlight__desc {
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.8;
  color: var(--color-text);
}

/* Float button */
.products-float {
  position: fixed;
  right: 24px;
  bottom: 32px;
  z-index: 100;
  display: block;
  width: 48px;
  height: 48px;
  transition: transform 0.3s;
}

.products-float img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
}

.products-float:hover {
  transform: scale(1.05);
}

/* Product detail page */
.products-layout--detail {
  column-gap: 48px;
}

.products-layout--detail .products-detail__desc {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
}

.products-layout--detail .products-detail__content {
  grid-column: 2;
  grid-row: 2;
}

.products-detail__desc {
  display: flex;
  flex-direction: column;
  align-self: stretch;
  max-width: 200px;
  min-height: 100%;
}

.products-detail__text {
  flex: 1;
}
.products-detail__text p {
  font-size: 14px;
  line-height: 1.8;
}
.products-detail__para {
  margin: 0;
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.8;
  color: var(--color-text);
}

.products-detail__para + .products-detail__para {
  margin-top: 28px;
}

.products-mobile-desc .products-detail__download {
  margin-top: 24px;
}

.products-detail__download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: auto;
  padding: 10px 0;
  border-top: 1px solid #333;
  border-bottom: 1px solid #333;
  font-size: 14px;
  font-weight: var(--font-weight-body);
  line-height: 1.5;
  color: #333;
  transition: color 0.3s;
}

.products-detail__download:hover {
  color: var(--color-primary);
}

.products-detail__download-icon {
  position: relative;
  flex-shrink: 0;
  width: 12px;
  height: 14px;
}

.products-detail__download-icon::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateX(-50%) rotate(45deg);
}

.products-detail__download-icon::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background-color: currentColor;
}

.products-detail__viewer {
  position: relative;
  aspect-ratio: 880 / 520;
  overflow: hidden;
  background-color: var(--color-gray-light);
}

.products-detail__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.products-detail__nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 44px;
  height: 44px;
  padding: 0;
  margin-top: -22px;
  border: none;
  background-color: rgba(0, 0, 0, 0.55);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, background-color 0.3s;
}

.products-detail__viewer:hover .products-detail__nav,
.products-detail__viewer:focus-within .products-detail__nav {
  opacity: 1;
  pointer-events: auto;
}

.products-detail__nav::after {
  content: "";
  display: block;
  width: 24px;
  height: 24px;
  margin: 0 auto;
  background: url("../images/arrow-right.svg") no-repeat center;
  background-size: contain;
}

.products-detail__nav--prev {
  left: 16px;
}

.products-detail__nav--prev::after {
  transform: scaleX(-1);
}

.products-detail__nav--next {
  right: 16px;
}

.products-detail__nav:hover {
  background-color: rgba(0, 0, 0, 0.75);
}

.products-mobile-desc {
  display: none;
}

/* Mobile-only toolbar (hidden on desktop) */
.products-mobile,
.products-mobile-series {
  display: none;
}

/* Tablet */
@media (max-width: 1023px) {
  .products-banner {
    height: 380px;
  }

  .products-body > .container,
  .products-highlights > .container {
    padding: 0 20px;
    box-sizing: border-box;
  }

  .products-body {
    padding: 40px 0 48px;
  }

  .products-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    row-gap: 0;
  }

  .products-main__content {
    grid-column: 1;
    grid-row: auto;
  }

  .products-desktop-only {
    display: none !important;
  }

  .products-mobile {
    display: block;
    margin-bottom: 24px;
  }

  .products-mobile__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
  }

  .products-mobile__back {
    font-size: 14px;
    font-weight: var(--font-weight-body);
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s;
  }

  .products-mobile__back:hover {
    color: var(--color-primary);
  }

  .products-mobile__filter {
    margin-bottom: 12px;
  }

  .products-mobile__cats {
    display: flex;
    gap: 8px;
    margin: 0 -20px;
    padding: 0 20px 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .products-mobile__cats::-webkit-scrollbar {
    display: none;
  }

  .products-mobile__cat {
    flex-shrink: 0;
    padding: 8px 14px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 20px;
    background: #fff;
    font-size: 13px;
    font-weight: var(--font-weight-body);
    line-height: 1.4;
    color: var(--color-black);
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s, background-color 0.3s;
  }

  .products-mobile__cat.is-active {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: rgba(215, 102, 71, 0.08);
  }

  .products-mobile__subs {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
  }

  .products-mobile__subs.is-visible {
    display: flex;
  }

  .products-mobile__sub {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    background-color: rgba(0, 0, 0, 0.05);
    font-size: 12px;
    font-weight: var(--font-weight-body);
    line-height: 1.4;
    color: var(--color-text);
    cursor: pointer;
    transition: color 0.3s, background-color 0.3s;
  }

  .products-mobile__sub.is-active {
    background-color: rgba(215, 102, 71, 0.12);
    color: var(--color-primary);
  }

  .products-mobile__series-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    background: #fff;
    font-size: 14px;
    font-weight: var(--font-weight-body);
    line-height: 1.4;
    color: var(--color-black);
    cursor: pointer;
    transition: border-color 0.3s;
  }

  .products-mobile__series-btn[aria-expanded="true"] {
    border-color: var(--color-primary);
  }

  .products-mobile__series-label {
    flex-shrink: 0;
    margin-right: 12px;
    color: var(--color-text);
  }

  .products-mobile__series-value {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: right;
    color: var(--color-black);
  }

  .products-mobile__series-icon {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    margin-left: 10px;
    border-right: 1.5px solid var(--color-text);
    border-bottom: 1.5px solid var(--color-text);
    transform: rotate(45deg) translateY(-2px);
    transition: transform 0.3s;
  }

  .products-mobile__series-btn[aria-expanded="true"] .products-mobile__series-icon {
    transform: rotate(-135deg) translateY(2px);
  }

  .products-mobile-series {
    display: block;
    visibility: hidden;
    pointer-events: none;
  }

  .products-mobile-series.is-open {
    visibility: visible;
    pointer-events: auto;
  }

  .products-mobile-series__backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background-color: rgba(0, 0, 0, 0.45);
    opacity: 0;
    transition: opacity 0.3s;
  }

  .products-mobile-series.is-open .products-mobile-series__backdrop {
    opacity: 1;
  }

  .products-mobile-series__panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 201;
    display: flex;
    flex-direction: column;
    max-height: 75vh;
    border-radius: 16px 16px 0 0;
    background: #fff;
    transform: translateY(100%);
    transition: transform 0.35s ease;
  }

  .products-mobile-series.is-open .products-mobile-series__panel {
    transform: translateY(0);
  }

  .products-mobile-series__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    padding: 18px 16px 14px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  }

  .products-mobile-series__title {
    margin: 0;
    font-size: 16px;
    font-weight: var(--font-weight-title);
    color: var(--color-black);
  }

  .products-mobile-series__close {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 50%;
    cursor: pointer;
    position: relative;
  }

  .products-mobile-series__close::before,
  .products-mobile-series__close::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 1.5px;
    background: var(--color-black);
  }

  .products-mobile-series__close::before {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .products-mobile-series__close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .products-mobile-series__body {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px 16px 32px;
  }

  .products-mobile-series__group {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .products-mobile-series__group + .products-mobile-series__group {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
  }

  .products-mobile-series__group a {
    display: block;
    padding: 10px 0;
    font-size: 14px;
    font-weight: var(--font-weight-body);
    line-height: 1.5;
    color: var(--color-text);
    transition: color 0.3s;
  }

  .products-mobile-series__group a.is-active,
  .products-mobile-series__group a:hover {
    color: var(--color-primary);
  }

  body.is-series-open {
    overflow: hidden;
  }

  .products-mobile-desc {
    display: block;
    margin-bottom: 20px;
  }

  .products-mobile-desc .products-detail__desc {
    max-width: none;
  }

  .products-layout--detail .products-detail__content {
    grid-column: 1;
    grid-row: auto;
  }

  .products-detail__viewer {
    aspect-ratio: 523 / 361;
  }

  .products-detail__nav {
    width: 40px;
    height: 40px;
    margin-top: -20px;
  }

  .products-detail__nav--prev {
    left: 12px;
  }

  .products-detail__nav--next {
    right: 12px;
  }

  .products-grid,
  .products-highlights__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Phone */
@media (max-width: 767px) {
  .products-banner {
    height: 300px;
  }

  .products-banner__img--desktop {
    display: none;
  }

  .products-banner__img--mobile {
    display: block;
  }

  .products-body > .container,
  .products-highlights > .container {
    padding: 0 16px;
  }

  .products-section-title {
    font-size: 28px;
  }

  .products-body {
    padding: 32px 0 40px;
  }

  .products-mobile__cats {
    margin: 0 -16px;
    padding: 0 16px 4px;
  }

  .products-grid,
  .products-highlights__grid {
    grid-template-columns: 1fr;
  }

  .products-highlights {
    padding-bottom: 56px;
  }

  .products-float {
    right: 16px;
    bottom: 24px;
    width: 42px;
    height: 42px;
  }
}