.page-products {
  --pp-rail: 210px;
  --pp-gap: 34px;
  --pp-organic: 28px 60px 24px 44px;
  --pp-organic-alt: 44px 24px 60px 28px;
  background: var(--mist);
  color: var(--ink);
  padding-bottom: var(--space-l);
}

.page-products .pp-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-products .pp-crumb {
  padding: 16px 0 0;
}

.page-products .pp-crumb a {
  color: var(--ink-soft);
  text-decoration: none;
}

.page-products .pp-crumb a:hover {
  color: var(--orange);
}

/* ---------- 分栏结构 ---------- */
.page-products .pp-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-products .pp-body {
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-products .pp-split {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    column-gap: var(--pp-gap);
  }
}

/* ---------- 左侧编号轴 ---------- */
.page-products .pp-rail {
  padding: 20px 0 0;
  border-top: 2px solid var(--ink);
  margin-top: 18px;
  min-width: 0;
}

.page-products .pp-rail__cap {
  font-size: var(--fs-12);
  letter-spacing: 0.28em;
  color: var(--ink-soft);
  margin: 0 0 10px;
}

.page-products .pp-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 2px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .pp-rail__list::-webkit-scrollbar {
  display: none;
}

.page-products .pp-rail__item a {
  display: block;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 6px 10px;
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  background: var(--paper);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

@media (min-width: 1000px) {
  .page-products .pp-rail {
    position: sticky;
    top: 18px;
    align-self: start;
    max-height: calc(100vh - 36px);
    overflow-y: auto;
    padding-top: 22px;
    margin-top: 34px;
  }

  .page-products .pp-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-products .pp-rail__item a {
    border: 0;
    border-radius: 0;
    background: none;
    border-left: 2px solid var(--mist-deep);
    padding: 9px 0 9px 12px;
    white-space: normal;
  }

  .page-products .pp-rail__item a:hover {
    border-left-color: var(--orange);
    color: var(--ink);
  }
}

/* ---------- 首屏 ---------- */
.page-products .pp-masthead {
  padding: var(--space-m) 0 var(--space-s);
  border-bottom: 1px solid var(--mist-deep);
}

.page-products .pp-eyebrow {
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--jiang);
  margin: 0;
}

.page-products .pp-title {
  font-size: clamp(34px, 7.4vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: 900;
  font-stretch: 87%;
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-products .pp-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--ink-soft);
}

.page-products .pp-metrics {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--mist-deep);
  border: 1px solid var(--mist-deep);
}

.page-products .pp-metric {
  background: var(--paper);
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .pp-metric__n {
  font-size: var(--fs-24);
  letter-spacing: 0.04em;
  color: var(--jiang);
  line-height: 1;
}

.page-products .pp-metric__k {
  font-size: var(--fs-12);
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}

@media (min-width: 720px) {
  .page-products .pp-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 区块通用 ---------- */
.page-products .pp-section {
  padding: var(--space-m) 0 0;
}

.page-products .pp-section--first {
  padding-top: var(--space-s);
}

.page-products .pp-sechead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 22px;
}

.page-products .pp-sechead__idx {
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--paper);
  background: var(--jiang);
  padding: 4px 8px;
  border-radius: 3px;
  line-height: 1;
}

.page-products .pp-sechead__idx--dark {
  background: var(--orange);
}

.page-products .pp-sechead__title {
  font-size: clamp(22px, 3.2vw, 40px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  font-weight: 900;
  font-stretch: 87%;
  margin: 0;
}

.page-products .pp-sechead__title--dark {
  color: var(--paper);
}

.page-products .pp-sechead__note {
  margin: 0 0 0 auto;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-products .pp-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.05em;
  line-height: 1.8;
  color: var(--ink-soft);
  padding-left: 12px;
  border-left: 2px solid var(--orange);
}

.page-products .pp-prose {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--ink-soft);
}

/* ---------- 图片 ---------- */
.page-products .pp-fig {
  margin: 24px 0 0;
}

.page-products .pp-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--mist-deep);
  background: linear-gradient(135deg, var(--mist-deep), var(--paper) 60%, var(--mist-deep));
}

.page-products .pp-fig--lead img {
  border-radius: var(--pp-organic);
}

.page-products .pp-fig--flow img {
  border-radius: var(--radius-s);
}

.page-products .pp-fig--square img {
  border-radius: var(--pp-organic-alt);
  aspect-ratio: 1 / 1;
}

.page-products .pp-fig--band img {
  border-radius: var(--radius-s);
}

.page-products .pp-fig--file img {
  border-radius: var(--pp-organic);
}

.page-products .pp-fig__cap {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-12);
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 68ch;
}

/* ---------- 四类业务入口 ---------- */
.page-products .pp-entries {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 700px) {
  .page-products .pp-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1160px) {
  .page-products .pp-entries {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .pp-entry {
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  padding: 18px 16px 16px;
  position: relative;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .pp-entry::before {
  content: "";
  display: block;
  width: 34px;
  height: 6px;
  border-radius: 3px;
  background: var(--cat, var(--jiang));
  margin-bottom: 14px;
}

.page-products .pp-entry:hover {
  transform: translateY(-3px);
  border-color: var(--cat, var(--jiang));
}

.page-products .pp-entry__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.page-products .pp-entry__link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

.page-products .pp-entry__link:focus-visible::after {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-products .pp-entry__k {
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--cat, var(--jiang));
}

.page-products .pp-entry__name {
  display: block;
  font-size: var(--fs-17);
  font-weight: 700;
  margin: 8px 0 6px;
  letter-spacing: -0.01em;
}

.page-products .pp-entry__meta {
  display: block;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 筛选器 ---------- */
.page-products .pp-filters {
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  background: var(--paper);
  padding: 14px;
  margin-bottom: 18px;
}

.page-products .pp-filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--mist-deep);
}

.page-products .pp-filter-row--last {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.page-products .pp-filter-row__k {
  flex: 0 0 58px;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.page-products .pp-chip {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.05em;
  color: var(--ink);
  background: var(--mist);
  border: 1px solid var(--mist-deep);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  transition: background 140ms var(--ease), color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-products .pp-chip:hover {
  border-color: var(--orange);
  color: var(--jiang);
}

.page-products .pp-chip.is-active,
.page-products .pp-chip[aria-pressed="true"] {
  background: var(--jiang);
  border-color: var(--jiang);
  color: var(--paper);
}

.page-products .pp-chip--clear {
  border-color: var(--ink-soft);
  color: var(--ink-soft);
  background: transparent;
}

.page-products .pp-chip--clear:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.page-products .pp-filter-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--mist-deep);
}

.page-products .pp-filters__count {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

/* ---------- 分类索引表 ---------- */
.page-products .pp-tablewrap {
  overflow-x: auto;
  border-top: 1px solid var(--ink);
  background: var(--paper);
  border-radius: 0 0 var(--radius-s) var(--radius-s);
}

.page-products .pp-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-products .pp-table__cap {
  caption-side: top;
  text-align: left;
  font-size: var(--fs-12);
  line-height: 1.8;
  color: var(--ink-soft);
  padding: 12px 12px 6px;
}

.page-products .pp-table th {
  text-align: left;
  font-weight: 500;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  padding: 10px 12px;
  border-bottom: 1px solid var(--mist-deep);
  white-space: nowrap;
  background: var(--mist);
}

.page-products .pp-table td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--mist-deep);
  vertical-align: top;
  line-height: 1.7;
}

.page-products .pp-table__th-mark,
.page-products .pp-table__mark {
  width: 16px;
  padding-right: 0;
}

.page-products .pp-table__mark span {
  display: block;
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 2px;
  background: var(--cat, var(--copper));
}

.page-products .pp-table__num {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--ink);
}

.page-products .pp-table__th-tier,
.page-products .pp-table__tier {
  text-align: right;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
}

.page-products .pp-row--alt td {
  background: rgba(198, 201, 194, 0.26);
}

.page-products .pp-table__more {
  min-width: 96px;
}

.page-products .pp-more summary {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--jiang);
  cursor: pointer;
  list-style: none;
  display: inline-block;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
}

.page-products .pp-more summary::-webkit-details-marker {
  display: none;
}

.page-products .pp-more p {
  margin: 10px 0 0;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--ink-soft);
  min-width: 220px;
}

/* ---------- 深色专利分区 ---------- */
.page-products .pp-dark {
  background: var(--indigo);
  color: var(--paper);
  border-radius: var(--pp-organic);
  padding: var(--space-m) 22px;
  margin-top: var(--space-l);
}

.page-products .pp-dark__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

@media (min-width: 880px) {
  .page-products .pp-dark__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
  }
}

.page-products .pp-dark__text {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--mist);
}

.page-products .pp-patent-stats {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(231, 232, 228, 0.22);
  border: 1px solid rgba(231, 232, 228, 0.22);
}

.page-products .pp-patent-stat {
  background: var(--indigo);
  padding: 14px 14px 12px;
}

.page-products .pp-patent-stat dt {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--mist-deep);
}

.page-products .pp-patent-stat dd {
  margin: 6px 0 0;
  font-size: var(--fs-24);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-products .pp-patent-views {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-patent-view {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-top: 1px solid rgba(231, 232, 228, 0.28);
  padding-top: 12px;
}

.page-products .pp-patent-view__k {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--orange);
  border: 1px solid var(--orange);
  border-radius: 3px;
  padding: 3px 7px;
  line-height: 1;
  flex: 0 0 auto;
}

.page-products .pp-patent-view__t {
  margin: 0;
  font-size: var(--fs-17);
  font-weight: 700;
  color: var(--paper);
}

.page-products .pp-patent-view__d {
  margin: 6px 0 0;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--mist);
}

.page-products .pp-fig--square {
  margin-top: 0;
}

.page-products .pp-fig--square img {
  border-color: rgba(231, 232, 228, 0.28);
}

/* ---------- 参数带 ---------- */
.page-products .pp-band {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 4px 4px 18px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-band:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
}

.page-products .pp-pcard {
  flex: 0 0 238px;
  scroll-snap-align: start;
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-top: 4px solid var(--violet);
  border-radius: var(--radius-s);
  padding: 16px 14px 18px;
}

@media (min-width: 760px) {
  .page-products .pp-pcard {
    flex: 0 0 262px;
  }
}

.page-products .pp-pcard__dot {
  display: block;
  width: 34px;
  height: 5px;
  border-radius: 3px;
  background: var(--violet);
  margin-bottom: 12px;
}

.page-products .pp-pcard__id {
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-products .pp-pcard__t {
  font-size: var(--fs-17);
  font-weight: 700;
  margin: 8px 0 6px;
  letter-spacing: -0.01em;
}

.page-products .pp-pcard__n {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--mist);
  border-radius: 3px;
  padding: 3px 8px;
  display: inline-block;
  margin: 0 0 10px;
}

.page-products .pp-pcard__d {
  margin: 0;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 档位与格式 ---------- */
.page-products .pp-tier-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

@media (min-width: 860px) {
  .page-products .pp-tier-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .pp-tier {
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  padding: 16px 14px;
}

.page-products .pp-tier__id {
  display: inline-block;
  font-size: var(--fs-14);
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--jiang);
  border-radius: 3px;
  padding: 4px 9px;
  line-height: 1;
}

.page-products .pp-tier__t {
  margin: 12px 0 6px;
  font-size: var(--fs-17);
  font-weight: 700;
}

.page-products .pp-tier__d {
  margin: 0;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .pp-caveat {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  background: rgba(226, 88, 15, 0.07);
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--ink);
}

.page-products .pp-formats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 22px;
  background: var(--mist-deep);
  border: 1px solid var(--mist-deep);
}

@media (min-width: 760px) {
  .page-products .pp-formats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pp-format {
  background: var(--paper);
  padding: 18px 16px;
}

.page-products .pp-format__k {
  font-size: var(--fs-14);
  letter-spacing: 0.14em;
  color: var(--cinnabar);
}

.page-products .pp-format__t {
  margin: 10px 0 6px;
  font-size: var(--fs-17);
  font-weight: 700;
}

.page-products .pp-format__d {
  margin: 0;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 校验与更新 ---------- */
.page-products .pp-check-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--mist-deep);
}

.page-products .pp-check-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--mist-deep);
}

@media (min-width: 760px) {
  .page-products .pp-check-item {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-products .pp-check-item dt {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--jiang);
}

.page-products .pp-check-item dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--ink-soft);
  max-width: 62ch;
}

.page-products .pp-outro {
  margin-top: var(--space-s);
  padding: 20px 18px;
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.page-products .pp-outro__text {
  margin: 0;
  flex: 1 1 340px;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-products .pp-outro__text a {
  color: var(--jiang);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-products .pp-outro__text a:hover {
  color: var(--orange);
}

.page-products .pp-copy {
  flex: 0 0 auto;
  cursor: pointer;
  background: var(--jiang);
  color: var(--paper);
  border: 0;
  border-radius: var(--radius-s);
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-12);
}

.page-products .pp-copy .copy-chip__text {
  letter-spacing: 0.04em;
}

.page-products .pp-copy .copy-chip__hint {
  font-size: var(--fs-12);
  color: var(--mist-deep);
}

.page-products .pp-copy.is-copied {
  background: var(--copper);
}

.page-products .pp-copy.is-failed {
  background: var(--cinnabar);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-entry,
  .page-products .pp-chip,
  .page-products .pp-rail__item a {
    transition: none;
  }

  .page-products .pp-entry:hover {
    transform: none;
  }
}
<<<END>>>

.page-products {
  --cat: transparent;
}