.page-products {
  --cat-gap: clamp(16px, 2.6vw, 28px);
  --cat-pad: clamp(48px, 8vw, 92px);
  --cat-card-bg: linear-gradient(168deg, rgba(11, 21, 48, .94), rgba(26, 16, 51, .58));
  background: var(--void);
  color: var(--silver);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

/* ---------- Hero ---------- */
.page-products .cat-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px) 0 clamp(34px, 6vw, 68px);
  border-bottom: 1px solid var(--line);
}

.page-products .cat-hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .32;
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 88% at 80% 4%, rgba(108, 92, 231, .34), transparent 60%),
    radial-gradient(90% 70% at 0% 100%, rgba(255, 138, 61, .12), transparent 62%),
    linear-gradient(180deg, rgba(5, 10, 24, .5) 0%, rgba(5, 10, 24, .92) 68%, var(--void) 100%);
}

.page-products .cat-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-products .hero-copy {
  min-width: 0;
}

.page-products .hero-copy .breadcrumbs {
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-products .hero-copy .eyebrow {
  margin: 0;
}

.page-products .hero-title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 6.4vw, 56px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: .015em;
  max-width: 20ch;
  color: var(--silver);
}

.page-products .hero-lede {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: var(--t-base);
  line-height: 1.85;
  color: rgba(232, 237, 247, .82);
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .hero-panel {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px);
  background: linear-gradient(160deg, rgba(26, 16, 51, .78), rgba(11, 21, 48, .88));
  border: 1px solid var(--line);
  min-width: 0;
}

.page-products .hero-panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 2px;
  background: var(--amber);
}

.page-products .hero-panel-title {
  margin: 0 0 16px;
  font-size: var(--t-xs);
  color: var(--rock);
  text-transform: uppercase;
}

.page-products .hero-facts {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-products .hero-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 11px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .hero-fact:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .hero-fact dt {
  font-size: var(--t-sm);
  color: var(--rock);
}

.page-products .hero-fact dd {
  margin: 0;
  color: var(--silver);
}

.page-products .fact-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 28px);
  font-weight: 600;
  color: var(--amber);
}

.page-products .fact-unit {
  margin-left: 4px;
  font-size: var(--t-xs);
  color: var(--rock);
}

/* ---------- Shell + rail ---------- */
.page-products .cat-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 44px);
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: var(--cat-pad);
}

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

.page-products .cat-rail {
  position: sticky;
  top: var(--head-h);
  z-index: 6;
  padding: 10px 0 12px;
  background: linear-gradient(180deg, var(--void) 72%, rgba(5, 10, 24, .82));
  border-bottom: 1px solid var(--line);
}

.page-products .rail-title,
.page-products .rail-note {
  display: none;
}

.page-products .rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .rail-list::-webkit-scrollbar {
  display: none;
}

.page-products .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  font-size: var(--t-sm);
  color: var(--rock);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--line-soft);
  background: rgba(11, 21, 48, .6);
  transition: color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-products .rail-link:hover,
.page-products .rail-link:focus-visible {
  color: var(--silver);
  border-color: var(--line-nebula);
  box-shadow: var(--glow-nebula);
}

.page-products .rail-num {
  font-size: var(--t-xs);
  color: var(--clay);
}

/* ---------- Sections ---------- */
.page-products .cat-section {
  padding-top: clamp(38px, 6vw, 68px);
  scroll-margin-top: calc(var(--head-h) + 68px);
}

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

.page-products .sec-head {
  max-width: 64ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .sec-head .eyebrow {
  margin: 0 0 10px;
}

.page-products .section-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(23px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: .015em;
  color: var(--silver);
}

.page-products .section-lede {
  margin: 14px 0 0;
  font-size: var(--t-base);
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- Group grid ---------- */
.page-products .grp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
}

.page-products .grp-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--cat-card-bg);
  border: 1px solid var(--line);
  scroll-margin-top: calc(var(--head-h) + 78px);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.page-products .grp-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 14px;
  height: 14px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .grp-card:hover {
  border-color: var(--line-nebula);
  box-shadow: var(--glow-nebula);
}

.page-products .grp-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.page-products .grp-code {
  margin: 0 0 6px;
  font-size: var(--t-xs);
  color: var(--clay);
}

.page-products .grp-name {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--silver);
}

.page-products .grp-count {
  margin: 0;
  flex: 0 0 auto;
  font-size: var(--t-sm);
  color: var(--amber);
}

.page-products .grp-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(232, 237, 247, .76);
}

.page-products .grp-aud {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--t-xs);
  color: var(--rock);
}

.page-products .grp-thumb {
  margin: 4px 0 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  aspect-ratio: 16 / 9;
}

.page-products .grp-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .grp-sub {
  display: grid;
  gap: 8px;
  margin: 8px 0 0;
  padding: 12px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line-soft);
}

.page-products .grp-sub li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: var(--t-sm);
  color: rgba(232, 237, 247, .78);
}

.page-products .grp-sub .mono {
  font-size: var(--t-xs);
  color: var(--clay);
}

/* ---------- Filter ---------- */
.page-products .filter-band {
  padding: clamp(18px, 2.6vw, 28px);
  background:
    linear-gradient(150deg, rgba(26, 16, 51, .5), rgba(11, 21, 48, .9)),
    var(--deep);
  border: 1px solid var(--line);
  border-left: 2px solid var(--nebula);
}

.page-products .filter-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
}

.page-products .filter-title {
  margin: 0 0 12px;
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-products .chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: var(--t-sm);
  color: var(--silver);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(5, 10, 24, .5);
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease, background .2s ease;
}

.page-products .chip .mono {
  font-size: var(--t-xs);
  color: var(--clay);
}

.page-products .chip:hover,
.page-products .chip:focus-visible {
  color: var(--cream);
  border-color: var(--line-amber);
  background: rgba(255, 138, 61, .1);
  box-shadow: var(--glow-amber);
}

.page-products .filter-hint {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- Doc list ---------- */
.page-products .doc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .doc-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 16px;
  padding: 15px 10px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .2s ease, border-color .2s ease;
}

.page-products .doc-row:hover {
  background: rgba(108, 92, 231, .1);
  border-bottom-color: var(--line-nebula);
}

.page-products .doc-code {
  margin: 0;
  font-size: var(--t-xs);
  color: var(--clay);
}

.page-products .doc-name {
  min-width: 0;
}

.page-products .doc-name strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--silver);
}

.page-products .doc-note {
  display: block;
  margin-top: 3px;
  font-size: var(--t-sm);
  line-height: 1.65;
  color: var(--rock);
}

.page-products .doc-ver {
  margin: 0;
  font-size: var(--t-sm);
  color: var(--moss);
}

.page-products .doc-aud {
  margin: 0;
  font-size: var(--t-sm);
  color: rgba(232, 237, 247, .72);
}

.page-products .doc-status {
  margin: 0;
}

.page-products .status {
  display: inline-block;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  white-space: nowrap;
  border: 1px solid var(--line-soft);
}

.page-products .doc-foot {
  margin: 18px 0 0;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--rock);
}

.page-products .doc-foot a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line-amber);
  padding-bottom: 1px;
  transition: color .2s ease;
}

.page-products .doc-foot a:hover {
  color: var(--amber);
}

/* ---------- Steps ---------- */
.page-products .step-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 36px);
  align-items: start;
}

.page-products .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .step-num {
  font-size: clamp(18px, 2.6vw, 22px);
  font-weight: 600;
  color: var(--amber);
  line-height: 1.3;
}

.page-products .step-title {
  margin: 0 0 8px;
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--silver);
}

.page-products .step-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-products .step-figure,
.page-products .usage-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(11, 21, 48, .7);
  overflow: hidden;
}

.page-products .step-figure img,
.page-products .usage-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: .9;
}

.page-products .usage-figure img {
  aspect-ratio: 4 / 3;
}

.page-products .media-caption {
  display: block;
  padding: 10px 12px;
  font-size: var(--t-xs);
  color: var(--rock);
  border-top: 1px solid var(--line-soft);
}

/* ---------- Usage ---------- */
.page-products .usage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 36px);
  align-items: start;
}

.page-products .usage-text {
  min-width: 0;
  display: grid;
  gap: 18px;
}

.page-products .usage-item {
  padding-left: 16px;
  border-left: 2px solid var(--line-nebula);
}

.page-products .usage-title {
  margin: 0 0 8px;
  font-size: var(--t-base);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--silver);
}

.page-products .usage-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- CTA ---------- */
.page-products .cta-band {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(22px, 3.4vw, 38px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line-amber);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 138, 61, .16), transparent 58%),
    linear-gradient(160deg, rgba(26, 16, 51, .82), rgba(11, 21, 48, .94));
}

.page-products .cta-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 3.2vw, 28px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--silver);
}

.page-products .cta-copy p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(232, 237, 247, .78);
}

.page-products .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* ---------- Responsive ---------- */
@media (min-width: 680px) {
  .page-products .grp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .grp-card--wide {
    grid-column: span 2;
  }

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

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

  .page-products .doc-row {
    grid-template-columns: 108px minmax(0, 1fr);
    padding: 16px 12px;
  }

  .page-products .doc-code {
    grid-column: 1;
  }

  .page-products .doc-name {
    grid-column: 2;
  }

  .page-products .doc-ver,
  .page-products .doc-aud,
  .page-products .doc-status {
    grid-column: 2;
  }

  .page-products .doc-ver::before {
    content: "版本 ";
    color: var(--rock);
  }

  .page-products .doc-aud::before {
    content: "适用 ";
    color: var(--rock);
  }
}

@media (min-width: 900px) {
  .page-products .step-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }

  .page-products .usage-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-products .cta-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-products .cat-hero-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .74fr);
  }

  .page-products .cat-shell {
    grid-template-columns: 204px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .cat-rail {
    position: sticky;
    top: calc(var(--head-h) + 26px);
    padding: 0;
    background: none;
    border-bottom: 0;
  }

  .page-products .rail-title,
  .page-products .rail-note {
    display: block;
  }

  .page-products .rail-title {
    margin: 0 0 12px;
    font-size: var(--t-xs);
    color: var(--rock);
    letter-spacing: .12em;
  }

  .page-products .rail-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-products .rail-link {
    width: 100%;
    padding: 9px 10px;
    border-color: transparent;
    border-left: 1px solid var(--line-soft);
    background: none;
  }

  .page-products .rail-link:hover,
  .page-products .rail-link:focus-visible {
    border-left-color: var(--amber);
    box-shadow: none;
  }

  .page-products .rail-note {
    margin: 16px 0 0;
    font-size: var(--t-xs);
    line-height: 1.7;
    color: var(--rock);
    border-top: 1px dashed var(--line-soft);
    padding-top: 12px;
  }

  .page-products .grp-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .grp-card--a {
    grid-column: span 7;
  }

  .page-products .grp-card--b {
    grid-column: span 5;
  }

  .page-products .grp-card--c,
  .page-products .grp-card--d,
  .page-products .grp-card--e {
    grid-column: span 4;
  }

  .page-products .grp-card--f {
    grid-column: span 12;
  }

  .page-products .grp-card--a,
  .page-products .grp-card--b {
    padding-bottom: 0;
  }

  .page-products .grp-card--a .grp-thumb,
  .page-products .grp-card--b .grp-thumb {
    margin-top: 6px;
    border-bottom: 0;
  }

  .page-products .doc-row {
    grid-template-columns: 112px minmax(0, 1fr) 82px 156px 104px;
    align-items: center;
    gap: 6px 18px;
  }

  .page-products .doc-code,
  .page-products .doc-name,
  .page-products .doc-ver,
  .page-products .doc-aud,
  .page-products .doc-status {
    grid-column: auto;
  }

  .page-products .doc-ver::before,
  .page-products .doc-aud::before {
    content: none;
  }
}

@media (min-width: 1220px) {
  .page-products .grp-card--f {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 10px 28px;
    align-items: start;
  }

  .page-products .grp-card--f .grp-head,
  .page-products .grp-card--f .grp-desc {
    grid-column: 1;
  }

  .page-products .grp-card--f .grp-sub,
  .page-products .grp-card--f .grp-aud {
    grid-column: 2;
  }

  .page-products .grp-card--f .grp-sub {
    grid-template-columns: 1fr;
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }
}