.page-products {
  --pf-line: 1px solid #1E3A5F;
  --pf-gap: clamp(14px, 2.2vw, 24px);
  --pf-block: clamp(40px, 6vw, 84px);
  background: var(--c-deep);
  color: var(--c-white);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-products .section {
  padding-block: var(--pf-block);
  border-bottom: var(--pf-line);
}

.page-products .eyebrow {
  color: var(--c-cyan);
  letter-spacing: .12em;
}

.page-products .lead {
  max-width: 46ch;
  color: var(--c-ice);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-products .note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-cyan);
  color: var(--c-titan);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 首屏 ---------- */

.page-products .pf-hero {
  position: relative;
  border-bottom: var(--pf-line);
  background:
    radial-gradient(120% 88% at 84% -6%, rgba(0, 229, 255, .16), transparent 62%),
    radial-gradient(90% 70% at 4% 100%, rgba(255, 107, 26, .08), transparent 60%),
    var(--c-deep);
}

.page-products .pf-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(30, 58, 95, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, .5) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 76%);
}

.page-products .pf-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumbs {
  color: var(--c-titan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-products .breadcrumbs a {
  color: var(--c-ice);
  text-decoration: none;
}

.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible {
  color: var(--c-cyan);
}

.page-products .pf-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(20px, 3vw, 36px);
}

.page-products .pf-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(32px, 7.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 800;
}

.page-products .pf-hero__lead .lead {
  margin: 18px 0 0;
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .pf-hero__meta {
  margin: 20px 0 0;
  color: var(--c-cyan);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-products .pf-hero__visual {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pf-hero__visual figcaption {
  color: var(--c-titan);
  font-size: 11px;
  letter-spacing: .1em;
}

.page-products .pf-hero__visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-products .pf-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
  background: #1E3A5F;
  border: var(--pf-line);
}

.page-products .pf-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--c-deep);
}

.page-products .pf-stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-pure);
}

.page-products .pf-stats .stat__label {
  color: var(--c-titan);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 章节头 ---------- */

.page-products .section-head {
  max-width: 68ch;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-products .section-head__index {
  margin: 0 0 12px;
  color: var(--c-cyan);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-products .section-head__title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -.01em;
  font-weight: 800;
}

.page-products .section-head__note {
  margin: 14px 0 0;
  max-width: 58ch;
  color: var(--c-titan);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 跳转索引 ---------- */

.page-products .pf-jump {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
  background: #1E3A5F;
  border: var(--pf-line);
}

.page-products .pf-jump .index-list__item {
  background: var(--c-deep);
}

.page-products .pf-jump .index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  color: var(--c-white);
  text-decoration: none;
  font-size: 14px;
  transition: color .2s var(--ease), background .2s var(--ease);
}

.page-products .pf-jump .index-link:hover,
.page-products .pf-jump .index-link:focus-visible,
.page-products .pf-jump .index-link.is-current {
  background: rgba(0, 229, 255, .09);
  color: var(--c-cyan);
}

.page-products .pf-jump .index-list__num {
  color: var(--c-cyan);
  font-size: 11px;
  letter-spacing: .1em;
}

/* ---------- 服务卡 ---------- */

.page-products .pf-service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
}

.page-products .pf-service {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px);
  border: var(--pf-line);
  background:
    linear-gradient(160deg, rgba(0, 229, 255, .07), rgba(10, 22, 51, 0) 58%),
    var(--c-deep-2);
}

.page-products .pf-service::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 62px;
  height: 2px;
  background: var(--c-cyan);
}

.page-products .pf-service:nth-child(3)::before {
  background: var(--c-orange);
}

.page-products .pf-service__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--c-cyan);
}

.page-products .pf-service:nth-child(3) .pf-service__top {
  color: var(--c-orange);
}

.page-products .pf-service__num {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-titan);
}

.page-products .pf-service__glyph {
  display: block;
}

.page-products .pf-service__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--c-pure);
}

.page-products .pf-service__text {
  margin: 0;
  color: var(--c-ice);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-products .pf-service .tag {
  align-self: flex-start;
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

/* ---------- 详情版式 ---------- */

.page-products .pf-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 48px);
}

.page-products .pf-detail__head h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-products .pf-detail__head p {
  margin: 14px 0 0;
  color: var(--c-titan);
  font-size: 15px;
  line-height: 1.78;
}

.page-products .pf-inline-link {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 2px;
  color: var(--c-cyan);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .45);
}

.page-products .pf-inline-link:hover,
.page-products .pf-inline-link:focus-visible {
  color: var(--c-pure);
  border-bottom-color: var(--c-pure);
}

.page-products .pf-detail__body {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2.6vw, 30px);
  min-width: 0;
}

/* ---------- 层级路径 ---------- */

.page-products .pf-path {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--pf-line);
}

.page-products .pf-path__step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 0 18px 4px;
  border-bottom: var(--pf-line);
}

.page-products .pf-path__step::after {
  content: "";
  position: absolute;
  left: 22px;
  bottom: -7px;
  width: 1px;
  height: 14px;
  background: var(--c-cyan);
  opacity: .55;
}

.page-products .pf-path__step:last-child::after {
  display: none;
}

.page-products .pf-path__idx {
  display: inline-block;
  padding: 4px 0;
  color: var(--c-cyan);
  font-size: 12px;
  letter-spacing: .12em;
  border-right: 1px solid #1E3A5F;
}

.page-products .pf-path__t {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-pure);
}

.page-products .pf-path__d {
  margin: 5px 0 0;
  color: var(--c-titan);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 图片容器 ---------- */

.page-products .pf-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pf-figure figcaption {
  color: var(--c-titan);
  font-size: 11px;
  letter-spacing: .1em;
}

.page-products .pf-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

/* ---------- 分类列表 ---------- */

.page-products .pf-cat {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .pf-cat__lead {
  margin: 0;
  color: var(--c-cyan);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-products .pf-cat__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: #1E3A5F;
  border: var(--pf-line);
}

.page-products .pf-cat__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  background: var(--c-deep-2);
}

.page-products .pf-cat__num {
  color: var(--c-cyan);
  font-size: 11px;
  letter-spacing: .08em;
}

.page-products .pf-cat__name {
  color: var(--c-white);
  font-size: 14px;
}

.page-products .pf-cat__foot {
  margin: 0;
  color: var(--c-titan);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 版本表 ---------- */

.page-products .pf-ver {
  border-top: var(--pf-line);
}

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

.page-products .pf-ver__key {
  color: var(--c-titan);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-products .pf-ver__val {
  font-size: 16px;
  font-weight: 700;
  word-break: break-all;
}

.page-products .pf-ver__desc {
  color: var(--c-titan);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 检索效率 ---------- */

.page-products .pf-eff {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-eff__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  border: var(--pf-line);
  border-left: 2px solid var(--c-cyan);
  background: rgba(5, 11, 24, .7);
}

.page-products .pf-eff__val {
  color: var(--c-orange);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-products .pf-eff__txt {
  margin: 0;
  color: var(--c-ice);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 手风琴 ---------- */

.page-products .accordion {
  border-top: var(--pf-line);
}

.page-products .accordion__item {
  border-bottom: var(--pf-line);
}

.page-products .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 0;
  background: none;
  border: 0;
  color: var(--c-white);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.page-products .accordion__trigger:hover,
.page-products .accordion__trigger:focus-visible {
  color: var(--c-cyan);
}

.page-products .accordion__mark {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border-right: 1px solid var(--c-cyan);
  border-bottom: 1px solid var(--c-cyan);
  transform: rotate(45deg);
  transition: transform .22s var(--ease);
}

.page-products .accordion__trigger[aria-expanded="true"] .accordion__mark {
  transform: rotate(225deg);
}

.page-products .accordion__panel {
  display: none;
}

.page-products .accordion__panel[data-open] {
  display: block;
}

.page-products .accordion__body {
  padding: 0 0 18px;
  max-width: 66ch;
}

.page-products .accordion__body p {
  margin: 0;
  color: var(--c-titan);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 场景 ---------- */

.page-products .pf-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-products .pf-scenes__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pf-scenes__figure figcaption {
  color: var(--c-titan);
  font-size: 11px;
  letter-spacing: .1em;
}

.page-products .pf-scenes__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-products .pf-scene-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: #1E3A5F;
  border: var(--pf-line);
}

.page-products .pf-scene {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-deep);
}

.page-products .pf-scene__tag {
  display: block;
  margin-bottom: 10px;
  color: var(--c-orange);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-products .pf-scene h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  line-height: 1.45;
  font-weight: 700;
  color: var(--c-pure);
}

.page-products .pf-scene p {
  margin: 0;
  color: var(--c-titan);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 服务入口对照 ---------- */

.page-products .pf-routes-block {
  background:
    radial-gradient(90% 80% at 90% 0%, rgba(255, 107, 26, .09), transparent 62%),
    var(--c-deep);
}

.page-products .pf-routes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
}

.page-products .pf-route {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "id    arrow"
    "title arrow"
    "desc  arrow";
  gap: 6px 18px;
  padding: clamp(18px, 2.6vw, 26px);
  border: var(--pf-line);
  background: rgba(5, 11, 24, .66);
  color: var(--c-white);
  text-decoration: none;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-products .pf-route:hover,
.page-products .pf-route:focus-visible {
  border-color: var(--c-cyan);
  transform: translateY(-2px);
}

.page-products .pf-route__id {
  grid-area: id;
  color: var(--c-cyan);
  font-size: 11px;
  letter-spacing: .12em;
}

.page-products .pf-route__title {
  grid-area: title;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  color: var(--c-pure);
}

.page-products .pf-route__desc {
  grid-area: desc;
  color: var(--c-titan);
  font-size: 14px;
  line-height: 1.72;
}

.page-products .pf-route__arrow {
  grid-area: arrow;
  align-self: center;
  color: var(--c-orange);
  font-size: 20px;
  line-height: 1;
}

.page-products .pf-callout {
  margin-top: clamp(20px, 3vw, 34px);
  border-left: 2px solid var(--c-orange);
}

.page-products .pf-callout p {
  margin: 0;
  color: var(--c-ice);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-products .pf-callout a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 26, .5);
}

.page-products .pf-callout a:hover,
.page-products .pf-callout a:focus-visible {
  color: var(--c-pure);
  border-bottom-color: var(--c-pure);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .pf-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .pf-ver__row {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 8px 20px;
  }

  .page-products .pf-ver__desc {
    grid-column: 2;
  }
}

@media (min-width: 880px) {
  .page-products .pf-jump {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 960px) {
  .page-products .pf-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: end;
  }

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

  .page-products .pf-detail {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-products .pf-detail--flip .pf-detail__head {
    order: 2;
  }

  .page-products .pf-detail--flip .pf-detail__body {
    order: 1;
  }

  .page-products .pf-scenes {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-products .pf-scenes__figure {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1200px) {
  .page-products .pf-service-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .pf-service:nth-child(1) {
    grid-column: span 5;
  }

  .page-products .pf-service:nth-child(2) {
    grid-column: span 7;
  }

  .page-products .pf-service:nth-child(3) {
    grid-column: span 7;
  }

  .page-products .pf-service:nth-child(4) {
    grid-column: span 5;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-route,
  .page-products .pf-jump .index-link,
  .page-products .accordion__mark {
    transition: none;
  }
}
<<<END>>>