.page-products {
  --pp-gap-xs: clamp(0.5rem, 1.2vw, 0.75rem);
  --pp-gap-sm: clamp(0.85rem, 2vw, 1.15rem);
  --pp-gap-md: clamp(1.25rem, 3vw, 2rem);
  --pp-gap-lg: clamp(2rem, 5vw, 3.25rem);
  --pp-section-pad: clamp(2.5rem, 6vw, 4.5rem);
  --pp-cell-pad: clamp(1.1rem, 2.4vw, 1.6rem);
  --pp-cream-soft: rgba(243, 232, 210, 0.78);
  --pp-cream-dim: rgba(243, 232, 210, 0.62);
  position: relative;
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(120% 55% at 82% 0%, rgba(201, 164, 85, 0.09), transparent 62%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 46%, var(--ink-900) 100%);
  color: var(--cream);
  overflow-x: hidden;
}

/* 面包屑 */
.page-products .breadcrumbs {
  padding-block: clamp(0.5rem, 1.5vw, 1rem);
}
.page-products .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grey-teal);
}
.page-products .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.page-products .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--gold);
  opacity: 0.7;
}
.page-products .breadcrumbs a {
  color: var(--grey-teal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold);
}
.page-products .breadcrumbs [aria-current="page"] {
  color: var(--cream);
}

/* 首屏 */
.page-products .pp-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap-md);
  padding-block: clamp(1.25rem, 3.5vw, 2.25rem) clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line-gold-soft);
}
.page-products .pp-hero__lead {
  min-width: 0;
}
.page-products .pp-eyebrow {
  margin: 0 0 0.85rem;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-products .pp-eyebrow__num {
  display: inline-block;
  margin-right: 0.55rem;
  padding: 0.12em 0.42em;
  border: 1px solid var(--line-gold);
  color: var(--gold-bright);
}
.page-products .pp-hero h1 {
  margin: 0 0 var(--pp-gap-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.6vw, 3.75rem);
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--cream);
  text-wrap: balance;
}
.page-products .pp-hero__lede {
  margin: 0 0 var(--pp-gap-md);
  max-width: 52ch;
  font-size: clamp(0.98rem, 1.1vw, 1.12rem);
  line-height: 1.78;
  color: var(--pp-cream-soft);
}
.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}
.page-products .pp-hero__index {
  padding: var(--pp-cell-pad);
  border: 1px solid var(--line-gold);
  background:
    linear-gradient(158deg, rgba(58, 45, 25, 0.42) 0%, rgba(12, 13, 16, 0.72) 68%);
  box-shadow: var(--shadow-paper);
}
.page-products .pp-hero__index-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-bright);
}
.page-products .pp-facts {
  margin: 0;
  display: grid;
  gap: 0.7rem;
}
.page-products .pp-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line-cream);
}
.page-products .pp-facts__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-products .pp-facts dt {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--pp-cream-dim);
}
.page-products .pp-facts dd {
  margin: 0;
  font-family: var(--font-index);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
  text-align: right;
}

/* 章节通用 */
.page-products .pp-section {
  padding-block: var(--pp-section-pad);
  border-bottom: 1px solid var(--line-gold-soft);
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}
.page-products .pp-section__head {
  max-width: 66ch;
  margin-bottom: var(--pp-gap-lg);
}
.page-products .pp-section h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.4vw, 2.35rem);
  line-height: 1.24;
  letter-spacing: 0.015em;
  color: var(--cream);
  text-wrap: balance;
}
.page-products .pp-section__lede {
  margin: 0;
  font-size: clamp(0.95rem, 1vw, 1.05rem);
  line-height: 1.8;
  color: var(--pp-cream-soft);
}

/* 图版 */
.page-products .pp-figure {
  margin: 0 0 var(--pp-gap-lg);
  border: 1px solid var(--line-gold-soft);
  background: var(--ink-800);
  padding: 0.55rem;
}
.page-products .pp-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-cream);
}
.page-products .pp-figure figcaption {
  margin-top: 0.6rem;
  font-family: var(--font-index);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: var(--grey-teal);
}

/* 四象限服务矩阵 */
.page-products .pp-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-gold-soft);
  background: var(--line-gold-soft);
}
.page-products .pp-matrix__cell {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: var(--pp-cell-pad);
  background: var(--ink-800);
  transition: background 0.35s var(--ease);
}
.page-products .pp-matrix__cell:hover {
  background: var(--ink-700);
}
.page-products .pp-matrix__num {
  margin: 0;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.page-products .pp-matrix__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--cream);
}
.page-products .pp-matrix__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}

/* 版本对照表 */
.page-products .pp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line-gold);
  background: var(--ink-800);
  box-shadow: var(--shadow-paper);
}
.page-products .pp-table-wrap:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}
.page-products .pp-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.65;
}
.page-products .pp-table th,
.page-products .pp-table td {
  padding: 0.85rem 0.95rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-cream);
}
.page-products .pp-table thead th {
  font-family: var(--font-index);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
  background: rgba(58, 45, 25, 0.42);
  white-space: nowrap;
}
.page-products .pp-table thead th:first-child {
  color: var(--grey-teal);
}
.page-products .pp-table tbody th {
  width: 11ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--gold);
  white-space: nowrap;
  background: rgba(58, 45, 25, 0.16);
}
.page-products .pp-table tbody td {
  color: var(--pp-cream-soft);
}
.page-products .pp-table tbody tr {
  transition: background 0.28s var(--ease);
}
.page-products .pp-table tbody tr:hover {
  background: rgba(201, 164, 85, 0.07);
}
.page-products .pp-table .badge {
  display: inline-block;
  margin-right: 0.45rem;
  padding: 0.15em 0.5em;
  font-family: var(--font-index);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  vertical-align: 1px;
}
.page-products .pp-note {
  margin: var(--pp-gap-sm) 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--vermilion);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--pp-cream-dim);
}

/* 三步流程 */
.page-products .pp-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap-sm);
  margin-bottom: var(--pp-gap-lg);
}
.page-products .pp-step {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: var(--pp-cell-pad);
  border: 1px solid var(--line-gold-soft);
  border-top: 2px solid var(--gold);
  background:
    linear-gradient(180deg, rgba(58, 45, 25, 0.28) 0%, rgba(18, 18, 22, 0) 58%),
    var(--ink-800);
}
.page-products .pp-step__num {
  margin: 0;
  font-family: var(--font-index);
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--gold);
}
.page-products .pp-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cream);
}
.page-products .pp-step__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}

/* 设备场景 */
.page-products .pp-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap-sm);
}
.page-products .pp-device {
  padding: var(--pp-cell-pad);
  border: 1px solid var(--line-gold-soft);
  border-left: 2px solid var(--electric-teal);
  background: var(--ink-800);
  display: grid;
  align-content: start;
  gap: 0.5rem;
}
.page-products .pp-device__label {
  margin: 0;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--electric-teal);
}
.page-products .pp-device__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}

/* 版本演进时间线 */
.page-products .pp-timeline {
  margin: 0 0 0 0.45rem;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line-gold);
}
.page-products .pp-timeline li {
  position: relative;
  padding: 0 0 clamp(1.25rem, 3vw, 1.9rem) clamp(1.1rem, 2.6vw, 1.9rem);
}
.page-products .pp-timeline li:last-child {
  padding-bottom: 0;
}
.page-products .pp-timeline li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.42rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px var(--ink-900);
}
.page-products .pp-timeline__year {
  margin: 0 0 0.3rem;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-bright);
}
.page-products .pp-timeline__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--cream);
}
.page-products .pp-timeline__text {
  margin: 0;
  max-width: 60ch;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}

/* 折叠清单 */
.page-products .pp-details {
  border: 1px solid var(--line-gold-soft);
  background: var(--ink-800);
  padding: 0 var(--pp-cell-pad);
  margin-bottom: 0.65rem;
}
.page-products .pp-details[open] {
  border-color: var(--line-gold);
}
.page-products .pp-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-bright);
}
.page-products .pp-details summary::-webkit-details-marker {
  display: none;
}
.page-products .pp-details summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-index);
  font-size: 1.15rem;
  color: var(--gold);
}
.page-products .pp-details[open] summary::after {
  content: "−";
}
.page-products .pp-details summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.page-products .pp-details__body {
  padding-bottom: 1.15rem;
}
.page-products .pp-checklist {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.6rem;
}
.page-products .pp-checklist li {
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}
.page-products .pp-checklist li::marker {
  color: var(--gold);
}

/* 引导块 */
.page-products .pp-callout {
  margin-top: var(--pp-gap-md);
  padding: var(--pp-cell-pad);
  border: 1px solid var(--line-gold);
  background:
    linear-gradient(135deg, rgba(58, 45, 25, 0.46) 0%, rgba(12, 13, 16, 0.8) 70%);
  display: grid;
  gap: 0.7rem;
  justify-items: start;
}
.page-products .pp-callout__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--cream);
}
.page-products .pp-callout__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--pp-cream-soft);
}

/* 相关入口 */
.page-products .pp-footer-nav {
  padding-top: var(--pp-section-pad);
}
.page-products .pp-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
}
.page-products .pp-link {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line-gold-soft);
  background: rgba(18, 18, 22, 0.6);
  text-decoration: none;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.page-products .pp-link:hover,
.page-products .pp-link:focus-visible {
  border-color: var(--gold);
  background: rgba(58, 45, 25, 0.32);
}
.page-products .pp-link__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-bright);
}
.page-products .pp-link__sub {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--pp-cream-dim);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-products .pp-devices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .pp-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(1.75rem, 4vw, 3.5rem);
  }
  .page-products .pp-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-steps .pp-step:nth-child(2) {
    margin-top: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .page-products .pp-devices {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pp-device:nth-child(2n) {
    margin-top: 1.4rem;
  }
  .page-products .pp-links {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-matrix__cell,
  .page-products .pp-link,
  .page-products .pp-table tbody tr {
    transition: none;
  }
  .page-products .pp-device:nth-child(2n),
  .page-products .pp-steps .pp-step:nth-child(2) {
    margin-top: 0;
  }
}

已在上方输出。