.page-products {
  --cat-gap: 1rem;
  --cat-panel: var(--c-paper);
  --cat-text: var(--c-graphite);
  display: block;
}

/* ---------- Hero ---------- */
.page-products .cat-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-paper);
  padding: 2rem 0 2.75rem;
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  top: -32%;
  right: -26%;
  width: 62%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.55), rgba(255, 122, 26, 0.32) 62%, transparent 74%);
  transform: rotate(16deg);
  pointer-events: none;
}

.page-products .cat-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--c-silver);
  margin-bottom: 1.5rem;
}

.page-products .breadcrumb a {
  color: var(--c-silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--c-paper);
  border-bottom-color: var(--c-orange);
}

.page-products .breadcrumb__sep {
  color: rgba(168, 179, 199, 0.55);
}

.page-products .cat-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-orange);
  margin: 0 0 0.9rem;
}

.page-products .cat-hero h1 {
  font-size: clamp(2rem, 7.2vw, 3.6rem);
  line-height: 1.14;
  letter-spacing: 0.03em;
  margin: 0 0 1rem;
  max-width: 22ch;
}

.page-products .cat-hero h1::after {
  content: "";
  display: block;
  width: 4.5rem;
  height: 0.4rem;
  margin-top: 1.1rem;
  background: var(--c-orange);
}

.page-products .cat-hero__lead {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(244, 246, 250, 0.86);
  margin: 0 0 1.4rem;
  max-width: 40ch;
}

.page-products .cat-hero__points {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-products .cat-hero__points li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(244, 246, 250, 0.92);
}

.page-products .cat-dot {
  flex: 0 0 auto;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--c-orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.18);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.page-products .cat-hero .figure__frame {
  border: 1px solid rgba(168, 179, 199, 0.28);
  border-bottom: 0.35rem solid var(--c-blue);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: rgba(244, 246, 250, 0.06);
  box-shadow: var(--shadow-card);
}

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

.page-products .figure__caption {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-silver);
}

/* ---------- 分类总览 ---------- */
.page-products .cat-cats {
  padding: 2.75rem 0 3.5rem;
}

.page-products .section-head {
  margin-bottom: 1.1rem;
}

.page-products .section-head__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--c-blue);
  margin: 0 0 0.6rem;
}

.page-products .section-head__title {
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--c-graphite);
  margin: 0;
}

.page-products .cat-cats__intro {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #47536a;
  margin: 0 0 1.4rem;
  max-width: 44ch;
}

.page-products .cat-cats__rail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.page-products .cat-chip {
  display: inline-block;
  padding: 0.42rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(22, 93, 255, 0.32);
  background: #fff;
  color: var(--c-blue);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .cat-chip:hover,
.page-products .cat-chip:focus-visible {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
}

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

.page-products .cat-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  padding: 1.35rem 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-products .cat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0.3rem;
  background: var(--c-blue);
}

.page-products .cat-card:nth-child(2)::before { background: var(--c-orange); }
.page-products .cat-card:nth-child(3)::before { background: var(--c-green); }
.page-products .cat-card:nth-child(4)::before { background: var(--c-wine); }

.page-products .cat-card h3 {
  font-size: 1.15rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--c-graphite);
  margin: 0.75rem 0 0.6rem;
}

.page-products .cat-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: #47536a;
  margin: 0 0 1rem;
}

.page-products .cat-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  border-top: 1px dashed var(--line-soft);
  padding-top: 0.9rem;
}

.page-products .cat-card__list li {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #5a6780;
}

.page-products .cat-card__list b {
  display: inline-block;
  min-width: 4.5rem;
  margin-right: 0.35rem;
  color: var(--c-blue-deep);
  font-weight: 600;
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-products .tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  border-radius: 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: #fff;
}

.page-products .tag--blue { background: var(--c-blue); }
.page-products .tag--orange { background: var(--c-orange); }
.page-products .tag--green { background: var(--c-green); }
.page-products .tag--wine { background: var(--c-wine); }

/* ---------- 旧版归档 ---------- */
.page-products .cat-archive {
  padding: 2.75rem 0;
}

.page-products .cat-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .cat-archive .section-head__eyebrow {
  color: var(--c-orange);
}

.page-products .cat-archive h2 {
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--c-paper);
  margin: 0 0 1rem;
}

.page-products .cat-archive__text > p {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(244, 246, 250, 0.86);
  margin: 0 0 1.2rem;
  max-width: 44ch;
}

.page-products .cat-archive__list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-products .cat-archive__list li {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 246, 250, 0.78);
  padding-left: 1rem;
  border-left: 0.2rem solid rgba(255, 122, 26, 0.7);
}

.page-products .cat-archive__list span {
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--c-orange);
  font-size: 0.8125rem;
}

.page-products .cat-archive__note {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(168, 179, 199, 0.9);
  padding: 0.85rem 1rem;
  border: 1px solid rgba(168, 179, 199, 0.24);
  border-radius: var(--radius-s);
  margin: 0 0 1.5rem;
}

.page-products .cat-archive .figure__frame {
  border: 1px solid rgba(168, 179, 199, 0.3);
  border-bottom: 0.35rem solid var(--c-orange);
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* ---------- 下载三步 ---------- */
.page-products .cat-steps {
  padding: 2.75rem 0 3rem;
}

.page-products .cat-steps .section-head__eyebrow {
  color: var(--c-orange);
}

.page-products .cat-steps .section-head__title {
  color: var(--c-paper);
}

.page-products .cat-steps__list {
  list-style: none;
  margin: 1.5rem 0 2rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  counter-reset: step;
}

.page-products .cat-step {
  position: relative;
  background: rgba(244, 246, 250, 0.07);
  border: 1px solid rgba(168, 179, 199, 0.22);
  border-radius: var(--radius-m);
  padding: 1.25rem 1.2rem 1.35rem;
}

.page-products .cat-step__num {
  display: inline-block;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--c-orange);
  letter-spacing: 0.06em;
  margin-bottom: 0.7rem;
}

.page-products .cat-step h3 {
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--c-paper);
  margin: 0 0 0.55rem;
}

.page-products .cat-step p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(244, 246, 250, 0.8);
  margin: 0;
}

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

.page-products .cat-steps .figure__frame {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid rgba(168, 179, 199, 0.24);
}

/* ---------- 筛选方式 ---------- */
.page-products .cat-filter {
  padding: 2.75rem 0 3rem;
}

.page-products .cat-filter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .cat-filter h2 {
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--c-graphite);
  margin: 0 0 1rem;
}

.page-products .cat-filter__panel > p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #47536a;
  margin: 0 0 1.5rem;
  max-width: 42ch;
}

.page-products .cat-filter__ways {
  display: grid;
  gap: 0.85rem;
}

.page-products .cat-way {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-left: 0.3rem solid var(--c-blue);
  border-radius: var(--radius-s);
  padding: 0.95rem 1.05rem;
}

.page-products .cat-way:nth-child(2) { border-left-color: var(--c-orange); }
.page-products .cat-way:nth-child(3) { border-left-color: var(--c-green); }

.page-products .cat-way__key {
  display: block;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--c-blue-deep);
  margin-bottom: 0.4rem;
}

.page-products .cat-way p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #47536a;
  margin: 0;
}

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

.page-products .cat-filter .figure__frame {
  border: 1px solid var(--line-soft);
  border-bottom: 0.35rem solid var(--c-blue);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-card);
}

.page-products .cat-filter .figure__caption {
  color: #66738b;
}

/* ---------- 资料详情 ---------- */
.page-products .cat-detailsec {
  padding: 2.75rem 0 3rem;
  background: linear-gradient(180deg, #eef1f8 0%, var(--c-paper) 100%);
}

.page-products .cat-detailsec .section-head__eyebrow {
  color: var(--c-wine);
}

.page-products .cat-detailsec__intro {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #47536a;
  margin: 0 0 1.5rem;
  max-width: 46ch;
}

.page-products .cat-detailsec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-products .cat-detailsec__list {
  display: grid;
  gap: 0.7rem;
}

.page-products .cat-detail {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-products .cat-detail summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.05rem;
  cursor: pointer;
  list-style: none;
  border-left: 0.3rem solid var(--c-wine);
}

.page-products .cat-detail summary::-webkit-details-marker {
  display: none;
}

.page-products .cat-detail summary:hover {
  background: rgba(107, 31, 58, 0.045);
}

.page-products .cat-detail summary:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: -2px;
}

.page-products .cat-detail__code {
  flex: 0 0 auto;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--c-wine);
  border-radius: 0.3rem;
  padding: 0.2rem 0.5rem;
}

.page-products .cat-detail__title {
  flex: 1 1 auto;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--c-graphite);
  font-weight: 600;
}

.page-products .cat-detail__toggle {
  flex: 0 0 auto;
  font-size: 1.05rem;
  color: var(--c-orange);
  transition: transform 0.2s var(--ease);
}

.page-products .cat-detail[open] .cat-detail__toggle {
  transform: rotate(45deg);
}

.page-products .cat-detail__specs {
  margin: 0;
  padding: 0.4rem 1.05rem 1.05rem 1.35rem;
  display: grid;
  gap: 0.65rem;
  border-top: 1px dashed var(--line-soft);
}

.page-products .cat-detail__specs > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.6rem;
  align-items: baseline;
}

.page-products .cat-detail__specs dt {
  font-size: 0.8125rem;
  color: var(--c-blue-deep);
  font-weight: 600;
}

.page-products .cat-detail__specs dd {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #47536a;
}

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

.page-products .cat-detailsec .figure__frame {
  border: 1px solid var(--line-soft);
  border-bottom: 0.35rem solid var(--c-wine);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-card);
}

.page-products .cat-detailsec .figure__caption {
  color: #66738b;
}

/* ---------- 下载之后 ---------- */
.page-products .cat-after {
  background: var(--c-ink);
  padding: 2.75rem 0 3rem;
}

.page-products .cat-after .section-head__eyebrow {
  color: var(--c-orange);
}

.page-products .cat-after .section-head__title {
  color: var(--c-paper);
}

.page-products .cat-after__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-products .cat-after__card {
  display: block;
  text-decoration: none;
  background: rgba(244, 246, 250, 0.06);
  border: 1px solid rgba(168, 179, 199, 0.24);
  border-radius: var(--radius-m);
  padding: 1.35rem 1.25rem 1.45rem;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-products .cat-after__card:hover,
.page-products .cat-after__card:focus-visible {
  background: rgba(244, 246, 250, 0.1);
  border-color: var(--c-orange);
  transform: translateY(-3px);
}

.page-products .cat-after__card h3 {
  font-size: 1.1rem;
  line-height: 1.45;
  color: var(--c-paper);
  margin: 0.75rem 0 0.6rem;
}

.page-products .cat-after__card p {
  font-size: 0.9375rem;
  line-height: 1.78;
  color: rgba(244, 246, 250, 0.8);
  margin: 0 0 1rem;
}

.page-products .cat-after__go {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--c-orange);
}

.page-products .cat-after__card--alt {
  border-style: dashed;
}

.page-products .cat-after__foot {
  margin: 1.6rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(168, 179, 199, 0.9);
}

.page-products .cat-after__foot a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, 0.5);
}

.page-products .cat-after__foot a:hover,
.page-products .cat-after__foot a:focus-visible {
  border-bottom-color: var(--c-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .cat-hero {
    padding: 3rem 0 3.5rem;
  }

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

  .page-products .cat-cats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-products .cat-cats__grid .cat-card:nth-child(even) {
    transform: translateY(1.5rem);
  }

  .page-products .cat-cats__grid {
    margin-bottom: 1.5rem;
  }

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

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

@media (min-width: 960px) {
  .page-products .cat-hero {
    padding: 3.25rem 0 4rem;
  }

  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 3rem;
  }

  .page-products .cat-archive__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: 3rem;
  }

  .page-products .cat-filter__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: 3rem;
  }

  .page-products .cat-detailsec__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: 2.5rem;
  }

  .page-products .cat-detailsec__figure {
    position: sticky;
    top: calc(var(--head-h) + 1.5rem);
  }

  .page-products .cat-after__grid {
    gap: 1.5rem;
  }
}

@media (min-width: 1200px) {
  .page-products .cat-cats__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .cat-cats__grid .cat-card:nth-child(even) {
    transform: translateY(2rem);
  }

  .page-products .cat-cats__grid {
    margin-bottom: 2.25rem;
  }
}

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

  .page-products .cat-after__card:hover,
  .page-products .cat-after__card:focus-visible {
    transform: none;
  }
}