.page-products {
  --cat-line: var(--line);
  --cat-accent: var(--flare);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(26px, 4vw, 46px);
  background: var(--paper);
  border-bottom: var(--bd);
}

.page-products .cat-hero__title {
  margin: 10px 0 0;
  font-size: clamp(42px, 10vw, 92px);
  font-weight: 200;
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--teal);
}

.page-products .cat-hero__lede {
  margin: 18px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
}

.page-products .cat-hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(244, 241, 233, .22);
  border: var(--bd);
}

.page-products .cat-hero__facts li {
  background: var(--teal);
  padding: 15px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .cat-hero__facts b {
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1;
  color: var(--flare);
  letter-spacing: -.01em;
}

.page-products .cat-hero__facts span {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper);
  opacity: .72;
}

@media (min-width: 640px) {
  .page-products .cat-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 主体骨架 ---------- */
.page-products .cat-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: clamp(30px, 4.5vw, 60px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

@media (min-width: 1000px) {
  .page-products .cat-shell {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 62px;
    align-items: start;
  }
}

/* ---------- 侧边目录 ---------- */
.page-products .cat-index {
  border: var(--bd);
  background: var(--warm);
  box-shadow: var(--shadow-soft);
}

.page-products .cat-index__head {
  margin: 0;
  padding: 11px 15px;
  background: var(--teal);
  color: var(--paper);
  letter-spacing: .16em;
}

.page-products .cat-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .cat-index__link {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 15px;
  border-top: 1px solid var(--cat-line);
  text-decoration: none;
  color: var(--stone);
  font-size: 14px;
  line-height: 1.45;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .cat-index__link:hover,
.page-products .cat-index__link:focus-visible {
  background: var(--paper);
  color: var(--teal);
}

.page-products .cat-index__num {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--clay);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .cat-index__link:hover .cat-index__num,
.page-products .cat-index__link:focus-visible .cat-index__num {
  color: var(--flare);
  border-bottom-color: var(--flare);
}

.page-products .cat-index__meta {
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--mist);
  white-space: nowrap;
}

.page-products .cat-index__foot {
  margin: 0;
  padding: 12px 15px;
  border-top: 1px solid var(--cat-line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .cat-index__foot a {
  color: var(--clay);
}

@media (min-width: 1000px) {
  .page-products .cat-index {
    position: sticky;
    top: 28px;
  }
}

/* ---------- 栏目流 ---------- */
.page-products .cat-flow {
  display: grid;
  gap: clamp(42px, 6vw, 78px);
  min-width: 0;
}

.page-products .cat-block {
  min-width: 0;
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}

.page-products .cat-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-top: 16px;
  border-top: var(--bd);
}

.page-products .cat-block__num {
  font-size: clamp(30px, 6vw, 50px);
  line-height: .9;
  color: var(--clay);
  opacity: .5;
  letter-spacing: -.02em;
}

.page-products .cat-block__title {
  margin: 0;
  font-size: clamp(23px, 3.4vw, 36px);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--teal);
}

.page-products .cat-block__lede {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 全宽数据带 ---------- */
.page-products .cat-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 22px;
  background: rgba(244, 241, 233, .22);
  border: var(--bd);
}

@media (min-width: 620px) {
  .page-products .cat-band {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-products .cat-band__cell {
  background: var(--teal);
  padding: 15px 13px;
  display: grid;
  gap: 7px;
  align-content: start;
}

.page-products .cat-band__k {
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-products .cat-band__v {
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1;
  color: var(--flare);
}

.page-products .cat-band__u {
  margin-left: 4px;
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--mist);
}

/* ---------- 图片 ---------- */
.page-products .cat-figure {
  margin: 24px 0 0;
}

.page-products .cat-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--bd);
  background: var(--moss);
}

/* ---------- 字段表格 ---------- */
.page-products .cat-sub {
  margin-top: 28px;
}

.page-products .cat-sub__title {
  margin: 0 0 10px;
  padding-left: 10px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--teal);
  border-left: 4px solid var(--flare);
}

.page-products .table-scroll {
  overflow-x: auto;
  border: var(--bd);
  background: var(--warm);
}

.page-products .data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .data-table th,
.page-products .data-table td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--cat-line);
  vertical-align: top;
  line-height: 1.65;
}

.page-products .data-table thead th {
  background: var(--moss);
  color: var(--paper);
  font-family: var(--f-mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: .14em;
  border-bottom: 0;
  white-space: nowrap;
}

.page-products .data-table tbody th {
  background: var(--teal);
  color: var(--paper);
  font-weight: 400;
  white-space: nowrap;
}

.page-products .data-table tbody tr:last-child th,
.page-products .data-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 双列表并置 ---------- */
.page-products .pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 22px;
}

@media (min-width: 760px) {
  .page-products .pair {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.page-products .pair__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 18px 20px;
  border: var(--bd);
  background: var(--warm);
  min-width: 0;
}

.page-products .pair__col--a {
  border-top: 6px solid var(--clay);
}

.page-products .pair__col--b {
  border-top: 6px solid var(--spark);
  background: var(--paper);
}

.page-products .pair__title {
  margin: 0;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: .02em;
  color: var(--teal);
}

.page-products .pair__col .cat-figure {
  margin: 0;
}

.page-products .pair__col .cat-figure img {
  aspect-ratio: 4 / 3;
}

.page-products .pair__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pair__rows li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--cat-line);
  font-size: 13.5px;
  color: var(--stone);
}

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

.page-products .pair__rows b {
  color: var(--teal);
  font-weight: 400;
  font-size: 13px;
  white-space: nowrap;
}

.page-products .pair__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 区间数据带 ---------- */
.page-products .band {
  margin-top: 22px;
  border: var(--bd);
  background: var(--warm);
}

.page-products .band__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .band__tick {
  flex: 0 0 auto;
  min-width: 124px;
  padding: 15px 14px;
  display: grid;
  gap: 7px;
  border-right: 1px solid var(--cat-line);
  scroll-snap-align: start;
}

.page-products .band__tick:last-child {
  border-right: 0;
}

.page-products .band__tick span {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-products .band__tick b {
  font-size: 20px;
  line-height: 1;
  color: var(--teal);
  font-weight: 400;
}

.page-products .cat-note {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 联赛分段控件 ---------- */
.page-products .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-products .chip {
  padding: 7px 13px;
  border: 1px solid var(--clay);
  background: var(--warm);
  color: var(--clay);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-products .chip--on {
  background: var(--flare);
  border-color: var(--flare);
  color: var(--night);
}

/* ---------- 索引式列表 ---------- */
.page-products .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .index-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--cat-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

.page-products .index-list li:last-child {
  border-bottom: 0;
}

.page-products .index-list__idx {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--clay);
  padding-top: 3px;
}

/* ---------- 折叠说明 ---------- */
.page-products .fold {
  margin-top: 24px;
  border-top: 1px dashed var(--cat-line);
}

.page-products .fold > summary {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 0;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--teal);
}

.page-products .fold > summary::-webkit-details-marker {
  display: none;
}

.page-products .fold > summary::before {
  content: "＋";
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--flare);
}

.page-products .fold[open] > summary::before {
  content: "－";
}

.page-products .fold__body {
  padding: 2px 0 16px;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
}

.page-products .fold__body p {
  margin: 0 0 12px;
}

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

.page-products .fold__body a {
  color: var(--clay);
}

/* ---------- 客户端深色条目 ---------- */
.page-products .cat-block--dark {
  padding: clamp(20px, 4vw, 36px);
  background: var(--night);
  border: var(--bd-dark);
  color: var(--paper);
}

.page-products .cat-block--dark .cat-block__head {
  border-top-color: rgba(244, 241, 233, .22);
}

.page-products .cat-block--dark .cat-block__num {
  color: var(--flare);
  opacity: 1;
}

.page-products .cat-block--dark .cat-block__title {
  color: var(--paper);
}

.page-products .cat-block--dark .cat-block__lede {
  color: var(--mist);
}

.page-products .client {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 26px;
}

@media (min-width: 720px) {
  .page-products .client {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-products .client .cat-figure {
  margin: 0;
}

.page-products .client .cat-figure img {
  border: var(--bd-invert);
  background: var(--teal);
}

.page-products .client__ver {
  margin: 0 0 16px;
  font-size: clamp(44px, 9vw, 76px);
  line-height: .9;
  letter-spacing: -.02em;
  color: var(--flare);
}

.page-products .spec {
  margin: 0;
  border-top: 1px solid rgba(244, 241, 233, .22);
}

.page-products .spec__row {
  display: grid;
  grid-template-columns: 106px minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(244, 241, 233, .22);
}

.page-products .spec dt {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--mist);
  padding-top: 2px;
}

.page-products .spec dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-products .client__note {
  margin: 18px 0 20px;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .client__note a {
  color: var(--flare);
}

.page-products .cat-block--dark .fold {
  border-top-color: rgba(244, 241, 233, .22);
}

.page-products .cat-block--dark .fold > summary {
  color: var(--paper);
}

.page-products .cat-block--dark .fold__body {
  color: var(--mist);
}

.page-products .cat-block--dark .index-list li {
  border-bottom-color: rgba(244, 241, 233, .18);
  color: var(--paper);
}

.page-products .cat-block--dark .index-list__idx {
  color: var(--spark);
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 480px) {
  .page-products .cat-band {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .cat-block__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-products .cat-block__num {
    font-size: 26px;
  }

  .page-products .spec__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-products .index-list li {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 10px;
  }
}

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

  .page-products .band__track {
    scroll-behavior: auto;
  }
}
<<<END>>>