.page-products {
  --pz-gap: clamp(20px, 3.4vw, 44px);
  --pz-section: clamp(48px, 6.5vw, 88px);
  --pz-line: var(--line-strong);
  color: var(--silver);
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  font-size: 13px;
  color: var(--silver-2);
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
}

.page-products .breadcrumb a {
  color: var(--silver-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .breadcrumb a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold-deep);
}

/* ---------- hero ---------- */
.page-products .prod-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-block: clamp(22px, 3.5vw, 40px) clamp(32px, 5vw, 60px);
}

.page-products .prod-hero__copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .prod-hero__lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--silver);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-stat {
  background: var(--ink-2);
  padding: 14px 16px;
}

.page-products .prod-stat__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver-2);
}

.page-products .prod-stat__value {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.1;
  color: var(--gold);
}

.page-products .media-frame {
  margin: 0;
  border: 2px solid var(--pz-line);
  background: var(--ink-3);
  overflow: hidden;
}

.page-products .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-products .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--silver-2);
  background: var(--ink-2);
}

/* ---------- zone rail ---------- */
.page-products .zone-rail {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  gap: 2px;
  margin-bottom: clamp(28px, 4vw, 48px);
  background: var(--pz-line);
  border: 2px solid var(--pz-line);
  box-shadow: 6px 6px 0 0 rgba(0, 0, 0, 0.5);
}

.page-products .zone-rail__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--ink-2);
  border-left: 4px solid transparent;
  color: var(--silver);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .zone-rail__item:hover,
.page-products .zone-rail__item:focus-visible {
  background: var(--ink-3);
  border-left-color: var(--cinnabar);
}

.page-products .zone-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-products .zone-rail__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-products .zone-rail__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--silver-2);
}

/* ---------- sections ---------- */
.page-products .prod-section {
  padding-block: var(--pz-section) 0;
}

.page-products .prod-section:last-of-type {
  padding-bottom: 0;
}

.page-products .sec-head {
  max-width: 74ch;
}

.page-products .sec-head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.2;
  color: var(--paper);
}

.page-products .sec-lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-products .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

/* ---------- zone cards ---------- */
.page-products .zone-cards {
  display: grid;
  gap: 2px;
  margin-top: 30px;
  background: var(--line);
  border: 2px solid var(--pz-line);
  box-shadow: var(--shadow-hard);
}

.page-products .zone-card {
  background: var(--ink-2);
  padding: 22px 20px;
}

.page-products .zone-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cinnabar);
}

.page-products .zone-card h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
}

.page-products .zone-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver-2);
}

.page-products .zone-card__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .zone-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

.page-products .zone-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--gold-deep);
}

/* ---------- split block ---------- */
.page-products .split-block {
  display: grid;
  gap: var(--pz-gap);
  margin-top: 30px;
}

.page-products .split-block__media {
  order: -1;
}

/* ---------- tag grid ---------- */
.page-products .tag-grid {
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--pz-line);
}

.page-products .tag-cell {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: var(--ink-2);
  transition: background var(--dur) var(--ease);
}

.page-products .tag-cell:hover {
  background: var(--ink-3);
}

.page-products .tag-cell__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-products .tag-cell__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver-2);
}

.page-products .tag-grid--dense .tag-cell {
  border-left: 2px solid var(--line-strong);
}

/* ---------- line cards ---------- */
.page-products .prod-section__figure {
  margin-top: 28px;
}

.page-products .line-cards {
  display: grid;
  gap: 2px;
  margin-top: 26px;
  background: var(--line);
  border: 2px solid var(--pz-line);
}

.page-products .line-card {
  background: var(--ink-2);
  padding: 20px 18px;
  border-top: 3px solid var(--gold-deep);
}

.page-products .line-card__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
}

.page-products .line-card h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
}

.page-products .line-card p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--silver-2);
}

/* ---------- batch panel ---------- */
.page-products .batch-panel {
  margin-top: 30px;
  border: 2px solid var(--pz-line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

.page-products .batch-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-products .batch-meta__item {
  display: grid;
  gap: 6px;
  padding: 16px;
  background: var(--ink);
}

.page-products .batch-meta__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver-2);
}

.page-products .batch-meta__value {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
  overflow-wrap: anywhere;
}

/* ---------- index table ---------- */
.page-products .idx-panel {
  border-top: 1px solid var(--line);
}

.page-products .idx-panel__title {
  margin: 0;
  padding: 18px 16px 0;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
}

.page-products .rf {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .idx-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.page-products .idx-chips label {
  padding: 7px 14px;
  border: 1px solid var(--pz-line);
  font-size: 12.5px;
  color: var(--silver);
  cursor: pointer;
  user-select: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .idx-chips label:hover {
  border-color: var(--gold-deep);
  color: var(--gold);
}

.page-products #rf-all:checked ~ .idx-chips label[for="rf-all"],
.page-products #rf-eff:checked ~ .idx-chips label[for="rf-eff"],
.page-products #rf-design:checked ~ .idx-chips label[for="rf-design"],
.page-products #rf-doc:checked ~ .idx-chips label[for="rf-doc"],
.page-products #rf-data:checked ~ .idx-chips label[for="rf-data"],
.page-products #rf-sys:checked ~ .idx-chips label[for="rf-sys"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

.page-products .idx-table {
  display: grid;
}

.page-products .idx-head {
  display: none;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver-2);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

.page-products .idx-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-products .idx-row:last-child {
  border-bottom: 0;
}

.page-products .idx-row:hover {
  background: var(--ink-3);
}

.page-products .idx-name {
  font-size: 14.5px;
  color: var(--paper);
}

.page-products .idx-cat {
  font-size: 12px;
  color: var(--silver-2);
  text-align: right;
}

.page-products .idx-code {
  grid-column: 1 / -1;
  justify-self: start;
  padding: 3px 10px;
  border: 1px solid var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products #rf-eff:checked ~ .idx-table .idx-row:not([data-cat="eff"]),
.page-products #rf-design:checked ~ .idx-table .idx-row:not([data-cat="design"]),
.page-products #rf-doc:checked ~ .idx-table .idx-row:not([data-cat="doc"]),
.page-products #rf-data:checked ~ .idx-table .idx-row:not([data-cat="data"]),
.page-products #rf-sys:checked ~ .idx-table .idx-row:not([data-cat="sys"]) {
  display: none;
}

/* ---------- batch foot ---------- */
.page-products .batch-foot {
  display: grid;
  gap: var(--pz-gap);
  margin-top: 28px;
}

.page-products .batch-foot__copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
}

.page-products .batch-foot__copy p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver-2);
}

.page-products .batch-foot__copy p:last-child {
  margin-top: 20px;
}

/* ---------- steps ---------- */
.page-products .steps {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-products .steps li {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 28px;
}

.page-products .steps li:last-child {
  padding-bottom: 4px;
}

.page-products .steps li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 40px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold-deep), rgba(138, 106, 31, 0.1));
}

.page-products .steps li:last-child::before {
  display: none;
}

.page-products .step-num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold);
}

.page-products .steps li:first-child .step-num {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

.page-products .step-body h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
}

.page-products .step-body p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver-2);
}

/* ---------- closing ---------- */
.page-products .closing-panel {
  margin-top: var(--pz-section);
  padding: clamp(24px, 4vw, 40px);
  border: 2px solid var(--pz-line);
  border-left: 6px solid var(--cinnabar);
  background: linear-gradient(140deg, var(--ink-3), var(--ink-2) 62%);
}

.page-products .closing-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  color: var(--paper);
}

.page-products .closing-panel p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver-2);
}

.page-products .closing-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- reveal ---------- */
.page-products .js-reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 260ms var(--ease), transform 260ms var(--ease);
}

.page-products .js-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

  .page-products .idx-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px 130px;
    gap: 12px;
  }

  .page-products .idx-row {
    grid-template-columns: minmax(0, 1fr) 120px 130px;
    align-items: center;
  }

  .page-products .idx-cat {
    text-align: left;
  }

  .page-products .idx-code {
    grid-column: auto;
    justify-self: start;
  }
}

@media (min-width: 960px) {
  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

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

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

  .page-products .split-block {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-products .split-block__media {
    order: 0;
    position: sticky;
    top: 96px;
  }

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

  .page-products .line-cards {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-products .batch-foot {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-products .tag-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .js-reveal,
  .page-products .js-reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-products .zone-rail__item,
  .page-products .tag-cell,
  .page-products .idx-row,
  .page-products .breadcrumb a {
    transition: none;
  }
}
<<<END>>>