.page-products {
  --pr-rail-w: 228px;
  --pr-line: var(--archive-line);
  background: var(--ink-900);
  color: var(--paper-sand);
  padding-bottom: clamp(40px, 8vw, 96px);
}

.page-products .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-products .pr-hero {
  padding: clamp(14px, 2.5vw, 24px) 0 clamp(22px, 4vw, 40px);
}

.page-products .pr-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--pr-line);
  border-radius: var(--radius);
  padding: clamp(26px, 4.5vw, 54px) clamp(20px, 4vw, 56px) clamp(28px, 5vw, 64px);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(255, 138, 43, 0.16), transparent 58%),
    radial-gradient(80% 90% at 0% 100%, rgba(79, 157, 130, 0.12), transparent 62%),
    var(--ink-800);
}

.page-products .pr-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--sand-gold) 0 2px, transparent 2px 14px);
  opacity: 0.55;
}

.page-products .pr-hero__frame::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--amber-orange), transparent 70%);
}

.page-products .eyebrow {
  color: var(--sand-gold);
}

.page-products .pr-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: 0.02em;
}

.page-products .pr-hero__lede {
  margin-top: clamp(14px, 2.4vw, 22px);
  max-width: 56ch;
  color: var(--paper-sand);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.85;
}

.page-products .pr-hero__stats {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-products .pr-hero__stats li {
  border-left: 1px solid var(--pr-line);
  padding-left: 12px;
}

.page-products .pr-hero__num {
  display: block;
  color: var(--sand-gold);
  font-size: clamp(1rem, 2vw, 1.25rem);
  letter-spacing: 0.06em;
}

.page-products .pr-hero__cap {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted-paper);
}

.page-products .pr-hero__cta {
  margin-top: clamp(22px, 3.4vw, 30px);
}

@media (min-width: 720px) {
  .page-products .pr-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pr-hero__cta {
    position: absolute;
    right: clamp(20px, 4vw, 56px);
    bottom: clamp(20px, 3vw, 40px);
    margin-top: 0;
  }
}

.page-products .pr-layout {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(18px, 3vw, 32px);
}

@media (min-width: 980px) {
  .page-products .pr-layout {
    grid-template-columns: var(--pr-rail-w) minmax(0, 1fr);
  }
  .page-products .pr-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

.page-products .pr-rail {
  border-top: 2px solid var(--sand-gold);
  padding-top: 14px;
}

.page-products .pr-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--helan-slate);
}

.page-products .pr-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .pr-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 8px 8px 10px;
  border-left: 2px solid transparent;
  color: var(--muted-paper);
  text-decoration: none;
  font-size: 13px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .pr-rail__link .mono {
  color: var(--sand-gold);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-products .pr-rail__link:hover,
.page-products .pr-rail__link:focus-visible {
  color: var(--paper-sand);
  border-left-color: var(--amber-orange);
  background: rgba(255, 138, 43, 0.08);
  outline: none;
}

.page-products .pr-rail__tree {
  margin-top: 16px;
  border: 1px solid var(--pr-line);
  background: var(--ink-800);
}

.page-products .pr-rail__tree > summary {
  cursor: pointer;
  list-style: none;
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sand-gold);
}

.page-products .pr-rail__tree > summary::-webkit-details-marker {
  display: none;
}

.page-products .pr-rail__tree > summary::after {
  content: " +";
  color: var(--helan-slate);
}

.page-products .pr-rail__tree[open] > summary::after {
  content: " −";
}

.page-products .pr-rail__tree-list {
  list-style: none;
  margin: 0;
  padding: 4px 12px 12px;
  display: grid;
  gap: 7px;
  font-size: 12px;
  color: var(--muted-paper);
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-rail__tree-list .mono {
  color: var(--helan-slate);
  margin-right: 8px;
}

.page-products .pr-content {
  min-width: 0;
}

.page-products .pr-sec {
  padding: clamp(26px, 4.4vw, 52px) 0;
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pr-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-products .pr-sec__no {
  margin: 0 0 6px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1;
  color: var(--sand-gold);
  opacity: 0.42;
  letter-spacing: 0.06em;
}

.page-products .pr-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  max-width: 24ch;
}

.page-products .pr-sec__note {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--helan-slate);
  border-top: 1px solid var(--pr-line);
  padding-top: 6px;
}

.page-products .pr-sec__body p {
  margin: 0 0 1.1em;
  line-height: 1.85;
  color: var(--paper-sand);
  max-width: 62ch;
}

.page-products .pr-sub {
  margin: 1.4em 0 0.4em;
  font-size: 1rem;
  font-weight: 700;
  color: var(--sand-gold);
  letter-spacing: 0.04em;
}

.page-products .pr-sub + p {
  color: var(--muted-paper);
}

.page-products .pr-sec--narrow .pr-sec__body {
  max-width: 620px;
}

.page-products .pr-split {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

@media (min-width: 780px) {
  .page-products .pr-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-products .pr-split--rev {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

.page-products .pr-figure {
  margin: clamp(16px, 2.6vw, 28px) 0 0;
}

.page-products .pr-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--pr-line);
  border-radius: var(--radius);
  background: var(--ink-700);
  object-fit: cover;
}

.page-products .pr-figure figcaption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted-paper);
  border-left: 2px solid var(--helan-slate);
  padding-left: 10px;
}

.page-products .pr-figure--tall img {
  border-left: 3px solid var(--sand-gold);
}

.page-products .pr-figure--band {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .pr-groups {
  list-style: none;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
}

.page-products .pr-group {
  background: var(--ink-800);
  border: 1px solid var(--pr-line);
  border-left: 2px solid var(--helan-slate);
  padding: 16px 18px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .pr-group:hover {
  border-left-color: var(--amber-orange);
  background: var(--ink-700);
}

.page-products .pr-group__no {
  margin: 0;
  color: var(--sand-gold);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-products .pr-group__name {
  margin: 6px 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper-sand);
}

.page-products .pr-group__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted-paper);
}

.page-products .pr-vers {
  margin-top: clamp(16px, 2.6vw, 24px);
  display: grid;
  gap: 12px;
}

.page-products .pr-ver {
  border: 1px solid var(--pr-line);
  background: var(--ink-800);
  border-radius: var(--radius);
}

.page-products .pr-ver[open] {
  border-color: rgba(217, 178, 106, 0.55);
  background: var(--ink-700);
}

.page-products .pr-ver__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .pr-ver__sum::-webkit-details-marker {
  display: none;
}

.page-products .pr-ver__year {
  color: var(--sand-gold);
  font-size: 14px;
  letter-spacing: 0.12em;
}

.page-products .pr-ver__name {
  font-weight: 700;
  font-size: 1rem;
}

.page-products .pr-ver__state {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--helan-slate);
  border: 1px solid var(--pr-line);
  padding: 3px 8px;
  border-radius: var(--radius);
}

.page-products .pr-ver[open] .pr-ver__state {
  color: var(--amber-orange);
  border-color: rgba(255, 138, 43, 0.5);
}

.page-products .pr-ver__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-facts {
  margin: 14px 0 0;
  display: grid;
  gap: 8px;
}

.page-products .pr-facts > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--pr-line);
  font-size: 13px;
}

.page-products .pr-facts dt {
  color: var(--muted-paper);
  white-space: nowrap;
}

.page-products .pr-facts dd {
  margin: 0;
  text-align: right;
  color: var(--paper-sand);
}

.page-products .pr-facts--wide {
  margin-top: 20px;
  max-width: 460px;
}

.page-products .pr-copy {
  margin-top: 14px;
  font-size: 12px;
}

.page-products .pr-copy[data-copied]::after {
  content: " · 已复制";
  color: var(--status-jade);
}

.page-products .pr-spec-visual {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: clamp(140px, 22vw, 200px);
  padding: 16px;
  border: 1px solid var(--pr-line);
  border-left: 3px solid var(--sand-gold);
  background: linear-gradient(180deg, rgba(110, 127, 140, 0.1), transparent);
}

.page-products .pr-spec-visual__bar {
  flex: 1;
  height: var(--h);
  min-height: 12px;
  background: linear-gradient(180deg, var(--sand-gold), rgba(217, 178, 106, 0.22));
  border-radius: 1px;
}

.page-products .pr-spec-visual__bar:nth-child(2n) {
  background: linear-gradient(180deg, var(--helan-slate), rgba(110, 127, 140, 0.2));
}

.page-products .pr-spec-visual__bar:nth-child(4) {
  background: linear-gradient(180deg, var(--amber-orange), rgba(255, 138, 43, 0.24));
}

.page-products .pr-steps {
  list-style: none;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: 0;
}

.page-products .pr-step {
  position: relative;
  padding: 0 0 20px 48px;
}

.page-products .pr-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: var(--pr-line);
}

.page-products .pr-step:last-child::before {
  display: none;
}

.page-products .pr-step__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  border: 1px solid var(--sand-gold);
  border-radius: 50%;
  color: var(--sand-gold);
  font-size: 11px;
  background: var(--ink-900);
}

.page-products .pr-step__body > summary {
  list-style: none;
  cursor: pointer;
  padding: 5px 0;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--paper-sand);
}

.page-products .pr-step__body > summary::-webkit-details-marker {
  display: none;
}

.page-products .pr-step__body > summary::after {
  content: "展开说明";
  margin-left: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--helan-slate);
  font-weight: 400;
}

.page-products .pr-step__body[open] > summary {
  color: var(--amber-orange);
}

.page-products .pr-step__body[open] > summary::after {
  content: "收起";
  color: var(--sand-gold);
}

.page-products .pr-step__body p {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-paper);
  max-width: 58ch;
}

.page-products .pr-checklist {
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 620px;
}

.page-products .pr-checklist li {
  position: relative;
  padding: 10px 14px 10px 34px;
  background: var(--ink-800);
  border-left: 2px solid var(--helan-slate);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-sand);
}

.page-products .pr-checklist li::before {
  content: "✓";
  position: absolute;
  left: 12px;
  top: 10px;
  color: var(--status-jade);
  font-size: 13px;
}

.page-products .pr-link {
  color: var(--sand-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 178, 106, 0.5);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-products .pr-link:hover,
.page-products .pr-link:focus-visible {
  color: var(--amber-orange);
  border-bottom-color: var(--amber-orange);
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-rail__link,
  .page-products .pr-group,
  .page-products .pr-link {
    transition: none;
  }
}
<<<END>>>

.page-products {
  --h: 1rem;
}