.page-products {
  --cat-line: 1px solid rgba(51, 56, 61, 0.14);
  --cat-line-strong: 1px solid var(--c-copper);
  --cat-gap: clamp(28px, 4.5vw, 64px);
  background: var(--c-snow);
  color: var(--c-rock);
  overflow-x: clip;
}

.page-products [hidden] {
  display: none !important;
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  background: var(--c-indigo);
  color: var(--c-snow);
  overflow: hidden;
  padding: clamp(20px, 3.4vw, 36px) 0 clamp(44px, 6.5vw, 88px);
}

.page-products .cat-hero__wedge {
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 62%;
  background: var(--c-moss);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.9;
  pointer-events: none;
}

.page-products .cat-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.page-products .cat-hero .breadcrumb__list {
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-products .cat-hero .breadcrumb__link,
.page-products .cat-hero .breadcrumb__item {
  color: rgba(244, 241, 234, 0.72);
}

.page-products .cat-hero .breadcrumb__link:hover {
  color: var(--c-snow);
}

.page-products .cat-hero__eyebrow {
  color: var(--c-copper);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
  display: block;
}

.page-products .cat-hero__title {
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(18px, 2.6vw, 30px);
}

.page-products .cat-hero__lede {
  max-width: 34em;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.82);
  margin: 0;
}

.page-products .cat-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(22px, 4vw, 60px);
  list-style: none;
  margin: clamp(30px, 4.4vw, 48px) 0 0;
  padding: clamp(20px, 2.6vw, 28px) 0 0;
  border-top: 1px solid rgba(244, 241, 234, 0.22);
}

.page-products .cat-hero__stats .stat {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  column-gap: 6px;
  row-gap: 6px;
}

.page-products .cat-hero__stats .stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4.6vw, 48px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-snow);
}

.page-products .cat-hero__stats .stat__unit {
  font-size: var(--fs-2);
  color: rgba(244, 241, 234, 0.7);
}

.page-products .cat-hero__stats .stat__label {
  grid-column: 1 / -1;
  font-size: var(--fs-1);
  letter-spacing: 0.16em;
  color: rgba(244, 241, 234, 0.62);
}

/* ---------- 目录总览 ---------- */
.page-products .cat-overview__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

.page-products .cat-overview__prose p {
  margin: 0 0 1.1em;
}

.page-products .cat-overview__prose p:last-child {
  margin-bottom: 0;
}

.page-products .cat-overview__figure {
  margin: 0;
  border-top: var(--cat-line-strong);
  padding-top: 18px;
}

/* ---------- 九类对照 ---------- */
.page-products .cat-nine {
  border-top: var(--cat-line);
}

.page-products .cat-nine__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 48px);
  align-items: end;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-products .cat-nine__lede {
  max-width: 38em;
  margin-top: 14px;
}

.page-products .cat-nine__figure {
  margin: 0;
}

/* 表格 */
.page-products .cat-table-wrap {
  margin-bottom: clamp(30px, 4.4vw, 56px);
  border-top: var(--cat-line-strong);
  border-bottom: var(--cat-line);
}

.page-products .cat-table {
  width: 100%;
  border-collapse: collapse;
}

.page-products .cat-table th,
.page-products .cat-table td {
  text-align: left;
  padding: 13px 14px;
  vertical-align: top;
  border-bottom: var(--cat-line);
}

.page-products .cat-table thead th {
  font-size: var(--fs-1);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-moss);
  background: rgba(216, 212, 203, 0.34);
  text-transform: none;
  white-space: nowrap;
}

.page-products .cat-table tbody tr:nth-child(even) {
  background: rgba(216, 212, 203, 0.22);
}

.page-products .cat-table tbody tr:hover {
  background: rgba(79, 93, 66, 0.06);
}

.page-products .cat-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .cat-table tbody th a {
  color: var(--c-indigo);
  text-decoration: none;
  border-bottom: 1px solid var(--c-copper);
}

.page-products .cat-table tbody th a:hover {
  color: var(--c-clay);
}

.page-products .cat-table td {
  font-size: var(--fs-2);
  color: rgba(51, 56, 61, 0.86);
  line-height: 1.7;
}

.page-products .cat-table td .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--c-indigo);
  line-height: 1;
}

/* 筛选栏 */
.page-products .cat-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(26px, 3.6vw, 44px);
  padding-bottom: 18px;
  border-bottom: var(--cat-line);
}

.page-products .cat-filter .filter-btn {
  font-size: var(--fs-2);
  padding: 7px 14px;
  border-radius: 0;
}

.page-products .cat-filter__status {
  font-size: var(--fs-1);
  letter-spacing: 0.1em;
  color: rgba(51, 56, 61, 0.6);
  margin-left: auto;
  white-space: nowrap;
}

/* 分栏布局 */
.page-products .cat-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
}

.page-products .cat-index {
  border-top: var(--cat-line-strong);
  padding-top: 14px;
}

.page-products .cat-index__note {
  margin: 0 0 12px;
}

.page-products .cat-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .cat-index__item {
  flex: 0 0 auto;
}

.page-products .cat-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  font-size: var(--fs-2);
  color: var(--c-rock);
  text-decoration: none;
  white-space: nowrap;
  border-left: 3px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-products .cat-index__link .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-1);
  color: var(--c-copper);
}

.page-products .cat-index__link:hover,
.page-products .cat-index__link:focus-visible {
  border-left-color: var(--c-copper);
  color: var(--c-indigo);
  background: rgba(176, 138, 79, 0.09);
}

.page-products .cat-list {
  min-width: 0;
}

.page-products .cat-block {
  padding: 22px 0 26px;
  border-top: var(--cat-line);
}

.page-products .cat-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .cat-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.page-products .cat-block__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-2);
  color: var(--c-copper);
  letter-spacing: 0.04em;
}

.page-products .cat-block__title {
  font-size: var(--fs-4);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--c-indigo);
}

.page-products .cat-block__count {
  font-size: var(--fs-2);
  color: rgba(51, 56, 61, 0.65);
  margin-left: auto;
}

.page-products .cat-block__count .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--c-clay);
}

.page-products .cat-block__focus {
  max-width: 40em;
  margin: 0 0 14px;
  font-size: var(--fs-3);
  line-height: 1.85;
  color: rgba(51, 56, 61, 0.88);
}

.page-products .cat-block__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-width: 44em;
}

.page-products .cat-block__list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-2);
  line-height: 1.8;
  color: rgba(51, 56, 61, 0.76);
}

.page-products .cat-block__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 6px;
  background: var(--c-lungta-blue);
}

/* ---------- 通用型号与行业定制 ---------- */
.page-products .cat-family__lede {
  max-width: 36em;
  margin-top: 14px;
  margin-bottom: clamp(26px, 3.6vw, 46px);
}

.page-products .cat-family__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.4vw, 60px);
}

.page-products .cat-family__figure {
  margin: 0 0 20px;
}

.page-products .cat-family__name {
  font-size: var(--fs-4);
  font-weight: 900;
  color: var(--c-indigo);
  margin: 0 0 12px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-products .cat-family__name .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-6);
  font-weight: 600;
  line-height: 0.9;
  color: var(--c-clay);
  letter-spacing: -0.03em;
}

.page-products .cat-family__text {
  max-width: 36em;
  margin: 0 0 16px;
  font-size: var(--fs-3);
  line-height: 1.85;
  color: rgba(51, 56, 61, 0.86);
}

.page-products .cat-family__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .cat-family__list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-2);
  line-height: 1.8;
  color: rgba(51, 56, 61, 0.74);
  border-bottom: var(--cat-line);
  padding-bottom: 8px;
}

.page-products .cat-family__list li:last-child {
  border-bottom: 0;
}

.page-products .cat-family__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--c-copper);
}

/* ---------- 在线比对 ---------- */
.page-products .cat-compare__lede {
  max-width: 40em;
  margin-top: 14px;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-products .compare-demo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--cat-line);
  border: var(--cat-line);
  margin-bottom: clamp(30px, 4vw, 52px);
}

.page-products .compare-demo__slot {
  position: relative;
  background: var(--c-snow);
  padding: 20px 16px 24px;
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 120px;
}

.page-products .compare-demo__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--c-copper);
}

.page-products .compare-demo__name {
  font-size: var(--fs-3);
  font-weight: 700;
  color: var(--c-indigo);
  line-height: 1.5;
}

.page-products .compare-demo__slot--diff {
  background: rgba(199, 154, 30, 0.17);
}

.page-products .compare-demo__slot--diff::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--c-lungta-yellow);
  pointer-events: none;
}

.page-products .compare-demo__slot .status-dot {
  width: 6px;
  height: 6px;
  background: var(--c-lungta-red);
}

.page-products .cat-compare__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 32px);
}

.page-products .cat-compare__step {
  border-top: var(--cat-line-strong);
  padding-top: 14px;
}

.page-products .cat-compare__step-title {
  font-size: var(--fs-3);
  font-weight: 900;
  color: var(--c-indigo);
  margin: 0 0 8px;
}

.page-products .cat-compare__step p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.8;
  color: rgba(51, 56, 61, 0.78);
}

/* ---------- 验证流程 ---------- */
.page-products .cat-verify__lede {
  max-width: 38em;
  margin-top: 14px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-products .cat-verify__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  counter-reset: vf;
}

.page-products .cat-verify__item {
  border-top: 1px solid rgba(244, 241, 234, 0.34);
  padding-top: 18px;
}

.page-products .cat-verify__no {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-5);
  font-weight: 600;
  line-height: 1;
  color: var(--c-copper);
  margin-bottom: 12px;
}

.page-products .cat-verify__name {
  font-size: var(--fs-4);
  font-weight: 900;
  color: var(--c-snow);
  margin: 0 0 10px;
}

.page-products .cat-verify__item p {
  margin: 0;
  max-width: 32em;
  font-size: var(--fs-3);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.82);
}

/* ---------- 高原安装 ---------- */
.page-products .cat-plateau__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

.page-products .cat-plateau__dl {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border-top: var(--cat-line-strong);
}

.page-products .cat-plateau__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--cat-line);
}

.page-products .cat-plateau__row dt {
  font-weight: 900;
  font-size: var(--fs-3);
  color: var(--c-indigo);
}

.page-products .cat-plateau__row dd {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.8;
  color: rgba(51, 56, 61, 0.8);
}

.page-products .cat-plateau__row--key {
  background: rgba(164, 82, 47, 0.08);
  border-left: 3px solid var(--c-clay);
  padding-left: 16px;
}

.page-products .cat-plateau__row--key dt {
  color: var(--c-clay);
}

.page-products .cat-plateau__figure {
  margin: 0;
}

/* ---------- 下载与支持 ---------- */
.page-products .cat-download__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

.page-products .cat-download__eyebrow {
  color: var(--c-copper);
}

.page-products .cat-download__lead .section-title {
  color: var(--c-snow);
}

.page-products .cat-download__text {
  max-width: 34em;
  margin: 16px 0 0;
  font-size: var(--fs-3);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.82);
}

.page-products .cat-download__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-products .cat-download__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(244, 241, 234, 0.16);
}

.page-products .cat-download__item {
  background: var(--c-night);
  padding: 18px 18px 20px;
}

.page-products .cat-download__name {
  font-size: var(--fs-3);
  font-weight: 900;
  color: var(--c-snow);
  margin: 0 0 8px;
}

.page-products .cat-download__item p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.72);
}

/* ---------- 底部索引 ---------- */
.page-products .cat-tail {
  border-top: var(--cat-line-strong);
}

.page-products .cat-tail__line {
  max-width: 52em;
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.9;
  color: rgba(51, 56, 61, 0.78);
}

.page-products .cat-tail__line a {
  color: var(--c-indigo);
  text-decoration: none;
  border-bottom: 1px solid var(--c-copper);
}

.page-products .cat-tail__line a:hover {
  color: var(--c-clay);
}

/* ---------- 窄屏表格折叠为定义列表 ---------- */
@media (max-width: 719px) {
  .page-products .cat-table-wrap {
    border-bottom: 0;
  }

  .page-products .cat-table,
  .page-products .cat-table tbody,
  .page-products .cat-table tr,
  .page-products .cat-table th,
  .page-products .cat-table td {
    display: block;
    width: 100%;
  }

  .page-products .cat-table thead {
    display: none;
  }

  .page-products .cat-table tbody tr {
    padding: 14px 0;
    border-bottom: var(--cat-line);
    background: transparent !important;
  }

  .page-products .cat-table tbody tr:hover {
    background: rgba(79, 93, 66, 0.06) !important;
  }

  .page-products .cat-table tbody th {
    padding: 0 0 10px;
    border-bottom: 0;
    font-size: var(--fs-4);
    white-space: normal;
  }

  .page-products .cat-table td {
    display: grid;
    grid-template-columns: 32% minmax(0, 1fr);
    gap: 10px;
    padding: 6px 0;
    border-bottom: 0;
    font-size: var(--fs-2);
  }

  .page-products .cat-table td::before {
    content: attr(data-label);
    font-size: var(--fs-1);
    letter-spacing: 0.12em;
    color: var(--c-moss);
    padding-top: 0.28em;
  }

  .page-products .cat-table td .num {
    font-size: var(--fs-3);
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-products .cat-compare__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .cat-verify__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .cat-plateau__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 18px;
  }
}

@media (min-width: 860px) {
  .page-products .cat-overview__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  }

  .page-products .cat-nine__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-products .cat-family__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .cat-plateau__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-products .cat-download__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-products .compare-demo {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .cat-split {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-products .cat-index {
    position: sticky;
    top: 96px;
  }

  .page-products .cat-index__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 2px;
  }

  .page-products .cat-index__link {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-index__link {
    transition: none;
  }
}