.page-products {
  --cat-rail-w: 200px;
  --cat-gap: 32px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-products .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  padding: calc(var(--header-h) + 28px) 0 48px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 92% 8%, rgba(199, 162, 90, 0.16), transparent 46%),
    var(--paper);
}

.page-products .cat-hero .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.page-products .cat-hero .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
}

.page-products .cat-hero .breadcrumbs a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-products .cat-hero .breadcrumbs a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: 32px;
}

.page-products .eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: none;
  color: var(--cinnabar);
}

.page-products .cat-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(52px, 15vw, 128px);
  line-height: 0.94;
  letter-spacing: 0.02em;
  font-weight: 600;
  color: var(--ink);
}

.page-products .cat-hero__lede {
  max-width: 34em;
  margin: 22px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .cat-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
}

.page-products .cat-hero__meta b {
  margin-right: 6px;
  font-size: 20px;
  font-weight: 600;
  color: var(--cinnabar);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .cat-hero__figure {
  margin: 0;
  position: relative;
}

.page-products .cat-hero__figure::before {
  content: "01 — 06";
  position: absolute;
  top: 10px;
  right: 12px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-products .cat-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--white);
  border: 1px solid var(--line);
}

.page-products .media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- 布局：左索引轴 + 右内容流 ---------- */
.page-products .cat-layout {
  display: grid;
  gap: var(--cat-gap);
  padding: 40px 0 72px;
}

.page-products .cat-rail {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-products .cat-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
}

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

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

.page-products .cat-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px 7px 0;
  font-size: 13px;
  white-space: nowrap;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .cat-rail__link .mono {
  font-size: 11px;
  color: var(--celadon);
}

.page-products .cat-rail__link:hover,
.page-products .cat-rail__link[aria-current="true"] {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-products .cat-rail__link[aria-current="true"] .mono {
  color: var(--cinnabar);
}

.page-products .cat-rail__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 章节 ---------- */
.page-products .cat-flow {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-products .cat-section {
  padding: 34px 0 40px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-products .cat-section:first-child {
  border-top: none;
  padding-top: 0;
}

.page-products .cat-section__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 14px;
  margin-bottom: 18px;
}

.page-products .cat-section__no {
  font-family: var(--font-mono);
  font-size: clamp(30px, 8vw, 54px);
  line-height: 0.9;
  color: var(--gold);
  font-weight: 500;
}

.page-products .chapter-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--celadon);
}

.page-products .cat-section__title h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 5.4vw, 36px);
  line-height: 1.35;
  font-weight: 600;
  color: var(--ink);
}

.page-products .cat-anchor {
  align-self: start;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .cat-anchor:hover {
  color: var(--white);
  background: var(--cinnabar);
  border-color: var(--cinnabar);
}

.page-products .cat-section__body {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}

/* ---------- 01 速览 ---------- */
.page-products .cat-quick {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-products .cat-quick li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products .cat-quick .mono {
  display: inline-block;
  min-width: 5.5em;
  margin-right: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

.page-products .cat-figure {
  margin: 26px 0 0;
}

.page-products .cat-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--white);
  border: 1px solid var(--line);
}

.page-products .cat-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-products .cat-figure--square img {
  aspect-ratio: 1 / 1;
  max-height: 420px;
}

/* ---------- 02 栏目分组 ---------- */
.page-products .cat-groups {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .cat-group {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 200ms var(--ease);
}

.page-products .cat-group::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: var(--cinnabar);
  transition: width 220ms var(--ease);
}

.page-products .cat-group:hover::after {
  width: 64px;
}

.page-products .cat-group--current::after {
  width: 104px;
}

.page-products .cat-group__no {
  font-size: clamp(26px, 6vw, 40px);
  line-height: 1;
  color: var(--mist);
  transition: color 200ms var(--ease);
}

.page-products .cat-group:hover .cat-group__no,
.page-products .cat-group--current .cat-group__no {
  color: var(--cinnabar);
}

.page-products .cat-group__main h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
}

.page-products .cat-group__main h3 a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .cat-group__main h3 a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-products .cat-group__main p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .cat-group__subs {
  margin-top: 8px !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
  letter-spacing: 0.04em;
  color: var(--celadon) !important;
}

/* ---------- 03 场景 ---------- */
.page-products .cat-scene {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

.page-products .scene-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

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

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

.page-products .scene-table tr {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-products .scene-table tr:first-child {
  border-top: 1px solid var(--line-strong);
}

.page-products .scene-table th,
.page-products .scene-table td {
  padding: 0;
  text-align: left;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .scene-table th[scope="row"] {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .scene-table th[scope="row"]::before,
.page-products .scene-table td::before {
  content: attr(data-label);
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--celadon);
  margin-bottom: 3px;
}

.page-products .scene-table th[scope="row"]::before {
  margin-top: 0;
}

.page-products .scene-table td[data-label="栏目"] {
  margin-top: 8px;
}

.page-products .scene-table td[data-label="栏目"] a {
  display: inline-block;
  font-size: 13px;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-products .scene-table td[data-label="栏目"] a:hover {
  color: var(--cinnabar-deep);
  border-bottom-color: var(--cinnabar);
}

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

.page-products .cat-scene__figure img {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  background: var(--white);
  border: 1px solid var(--line);
}

/* ---------- 04 三步 ---------- */
.page-products .cat-steps-wrap {
  margin-top: 26px;
  display: grid;
  gap: 26px;
}

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

.page-products .cat-step {
  position: relative;
  padding: 18px 0 18px 46px;
  border-top: 1px solid var(--line);
}

.page-products .cat-step:first-child {
  border-top: none;
  padding-top: 0;
}

.page-products .cat-step:first-child .cat-step__no {
  top: 0;
}

.page-products .cat-step__no {
  position: absolute;
  left: 0;
  top: 20px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font-size: 13px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--celadon);
  border-radius: 50%;
}

.page-products .cat-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .cat-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.page-products .cat-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: contain;
  background: var(--white);
  border: 1px solid var(--line);
}

/* ---------- 05 版本与设备 ---------- */
.page-products .cat-section--band {
  margin-top: 8px;
  padding: 34px 22px 38px;
  background: var(--white);
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.page-products .cat-version {
  display: grid;
  gap: 20px;
  margin-top: 20px;
}

.page-products .cat-version__badge {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-products .cat-version__badge .mono {
  font-size: clamp(24px, 7vw, 34px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
}

.page-products .cat-version__cap {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.page-products .cat-version__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-products .cat-version__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-version__list li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .cat-version__list .mono {
  display: inline-block;
  min-width: 6.4em;
  color: var(--ink);
  font-size: 13px;
}

.page-products .cat-textlink {
  display: inline-block;
  margin-top: 18px;
  font-size: 13px;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid var(--cinnabar);
  padding-bottom: 2px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .cat-textlink:hover {
  color: var(--cinnabar-deep);
  border-bottom-color: var(--cinnabar-deep);
}

/* ---------- 06 维护节奏 ---------- */
.page-products .cat-section--dark {
  margin-top: 0;
  padding: 36px 22px 40px;
  background: var(--ink);
  color: var(--paper);
}

.page-products .cat-section--dark .cat-section__no {
  color: var(--gold);
}

.page-products .cat-section--dark .chapter-label {
  color: var(--gold);
}

.page-products .cat-section--dark .cat-section__title h2 {
  color: var(--paper);
}

.page-products .cat-section--dark .cat-section__body {
  color: rgba(247, 243, 234, 0.78);
}

.page-products .cat-section--dark .cat-anchor {
  color: rgba(247, 243, 234, 0.6);
  border-color: var(--line-light);
}

.page-products .cat-section--dark .cat-anchor:hover {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-products .cat-cadence {
  display: grid;
  gap: 0;
  margin-top: 26px;
  border-top: 1px solid var(--line-light);
}

.page-products .cat-cadence__item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-products .cat-cadence__num {
  display: block;
  font-size: clamp(24px, 7vw, 34px);
  line-height: 1;
  color: var(--gold);
}

.page-products .cat-cadence__label {
  margin: 8px 0 4px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(247, 243, 234, 0.55);
}

.page-products .cat-cadence__item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 243, 234, 0.82);
}

.page-products .cat-cadence__cta {
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .cat-hero {
    padding: calc(var(--header-h) + 40px) 0 64px;
  }

  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: 40px;
  }

  .page-products .cat-hero__lede {
    font-size: 17px;
  }

  .page-products .cat-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-products .cat-quick li {
    border-bottom: none;
    border-top: 1px solid var(--line);
  }

  .page-products .cat-quick .mono {
    display: block;
    min-width: 0;
    margin: 0 0 6px;
  }

  .page-products .scene-table,
  .page-products .scene-table tbody {
    display: table;
    width: 100%;
  }

  .page-products .scene-table {
    display: table;
    border-collapse: collapse;
  }

  .page-products .scene-table tbody {
    display: table-row-group;
  }

  .page-products .scene-table thead {
    display: table-header-group;
  }

  .page-products .scene-table tr {
    display: table-row;
    padding: 0;
    border-top: none;
  }

  .page-products .scene-table th,
  .page-products .scene-table td {
    display: table-cell;
    padding: 16px 14px 16px 0;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    font-size: 14px;
  }

  .page-products .scene-table thead th {
    padding-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line-strong);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    color: var(--ink-soft);
    white-space: nowrap;
  }

  .page-products .scene-table th[scope="row"]::before,
  .page-products .scene-table td::before {
    content: none;
    display: none;
  }

  .page-products .scene-table td[data-label="栏目"] {
    margin-top: 0;
    white-space: nowrap;
  }

  .page-products .cat-scene {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 32px;
    align-items: start;
  }

  .page-products .cat-scene__figure img {
    max-width: none;
  }

  .page-products .cat-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-products .cat-step {
    padding: 0;
    border-top: 2px solid var(--gold);
  }

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

  .page-products .cat-step__no {
    position: static;
    margin-bottom: 14px;
  }

  .page-products .cat-version {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .cat-cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 36px;
  }
}

@media (min-width: 960px) {
  .page-products .cat-layout {
    grid-template-columns: var(--cat-rail-w) minmax(0, 1fr);
    gap: 56px;
    padding: 56px 0 96px;
  }

  .page-products .cat-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    border-top: 2px solid var(--ink);
  }

  .page-products .cat-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-products .cat-rail__list li {
    flex: none;
  }

  .page-products .cat-rail__link {
    width: 100%;
    padding: 10px 0 10px 12px;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
  }

  .page-products .cat-rail__link:hover,
  .page-products .cat-rail__link[aria-current="true"] {
    border-left-color: var(--cinnabar);
    border-bottom-color: var(--line);
  }

  .page-products .cat-section {
    padding: 48px 0 56px;
  }

  .page-products .cat-section__head {
    grid-template-columns: auto 1fr auto;
    gap: 22px;
    margin-bottom: 22px;
  }

  .page-products .cat-section__body {
    font-size: 16px;
    padding-left: 84px;
  }

  .page-products .cat-quick,
  .page-products .cat-figure,
  .page-products .cat-groups,
  .page-products .cat-scene,
  .page-products .cat-steps-wrap,
  .page-products .cat-version,
  .page-products .cat-cadence {
    margin-left: 84px;
  }

  .page-products .cat-version {
    padding-left: 0;
  }

  .page-products .cat-section--band {
    padding: 48px 40px 52px;
  }

  .page-products .cat-section--dark {
    padding: 48px 40px 56px;
  }

  .page-products .cat-section--band .cat-section__body,
  .page-products .cat-section--dark .cat-section__body {
    padding-left: 0;
    max-width: 46em;
  }

  .page-products .cat-section--dark .cat-cadence,
  .page-products .cat-section--dark .cat-cadence__cta {
    margin-left: 84px;
  }

  .page-products .cat-group {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 24px;
    padding: 26px 0;
  }

  .page-products .cat-group__main h3 {
    font-size: 22px;
  }

  .page-products .cat-steps-wrap {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    align-items: center;
  }

  .page-products .cat-cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 32px;
  }
}

@media (min-width: 1200px) {
  .page-products .cat-hero__lede {
    font-size: 18px;
  }

  .page-products .cat-layout {
    gap: 72px;
  }

  .page-products .cat-groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 48px;
  }

  .page-products .cat-group {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .page-products .cat-group__main h3 {
    font-size: 20px;
  }

  .page-products .cat-version {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}
<<<END>>>