.page-products {
  --dl-rail-w: 178px;
  --dl-gap: clamp(22px, 3vw, 52px);
  --dl-tint: rgba(255, 77, 28, 0.08);
  background: var(--ink-950);
  color: var(--text-primary);
  font-family: var(--font-sans);
  padding-bottom: clamp(48px, 6vw, 96px);
}

.page-products .breadcrumb {
  padding-top: clamp(16px, 2vw, 26px);
}

.page-products .dl-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-top: clamp(18px, 2.4vw, 30px);
}

/* ---------- 左侧轨道 ---------- */
.page-products .dl-rail {
  border-bottom: 1px solid var(--line-c);
  padding-bottom: 12px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-products .dl-rail__title {
  display: none;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--steel-400);
  text-transform: uppercase;
  margin: 0 0 12px;
}

.page-products .dl-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .dl-rail__list li {
  flex: 0 0 auto;
}

.page-products .dl-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line-c);
  color: var(--text-muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-products .dl-rail__list a:hover,
.page-products .dl-rail__list a:focus-visible {
  color: var(--text-primary);
  border-color: var(--ember-500);
}

.page-products .dl-rail__list .mono {
  font-size: 11px;
  color: var(--ember-500);
  letter-spacing: 0.06em;
}

/* ---------- 主体区块 ---------- */
.page-products .dl-body {
  min-width: 0;
}

.page-products .dl-block {
  padding-bottom: clamp(40px, 5vw, 72px);
  margin-bottom: clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--line-c);
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-products .dl-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-products .dl-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.page-products .dl-title {
  margin: 10px 0 0;
  font-size: clamp(38px, 8.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.page-products .lede {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-products .dl-stamp {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  min-height: 132px;
  padding: 16px;
  border: 1px solid var(--line-c);
  background: var(--pitch-900);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0 21px,
    rgba(62, 85, 102, 0.35) 21px 22px
  );
}

.page-products .dl-stamp__ver {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 700;
  color: var(--ember-500);
  letter-spacing: 0.02em;
  line-height: 1;
}

.page-products .dl-stamp__note {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel-400);
}

.page-products .dl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(24px, 3vw, 36px) 0 clamp(26px, 3vw, 36px);
}

/* ---------- 规格表 ---------- */
.page-products .spec-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-c);
  background: var(--carbon-800);
}

.page-products .spec-caption {
  padding: 12px 14px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel-400);
  text-align: left;
  border-bottom: 1px solid var(--line-c);
}

.page-products .spec-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-products .spec-table th,
.page-products .spec-table td {
  padding: 14px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-c);
  color: var(--text-muted);
}

.page-products .spec-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel-400);
  font-weight: 500;
  background: var(--ink-950);
}

.page-products .spec-table tbody th {
  color: var(--text-primary);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .spec-table tbody tr:last-child th,
.page-products .spec-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .spec-table .spec-name {
  display: block;
  margin-top: 6px;
  font-size: 16px;
  color: var(--text-primary);
}

.page-products .spec-table tr.is-pick th,
.page-products .spec-table tr.is-pick td {
  background: var(--dl-tint);
}

.page-products .spec-table tr.is-pick th:first-child {
  box-shadow: inset 3px 0 0 var(--ember-500);
}

.page-products .spec-table .num {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.page-products .dl-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--steel-700);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 62ch;
}

/* ---------- 区块标题 ---------- */
.page-products .dl-block__head {
  margin-bottom: clamp(22px, 2.6vw, 34px);
}

.page-products .dl-h2 {
  margin: 10px 0 0;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text-primary);
}

.page-products .dl-lead {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 图片 ---------- */
.page-products .dl-figure {
  margin: 0 0 clamp(22px, 2.6vw, 34px);
  border: 1px solid var(--line-c);
  background: var(--pitch-900);
}

.page-products .dl-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .dl-figure figcaption {
  padding: 10px 14px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel-400);
  border-top: 1px solid var(--line-c);
}

/* ---------- 主页分区 ---------- */
.page-products .zone-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-c);
  border: 1px solid var(--line-c);
}

.page-products .zone {
  background: var(--carbon-800);
  padding: 20px 18px;
}

.page-products .zone__num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ember-500);
}

.page-products .zone__title {
  margin: 8px 0 8px;
  font-size: 18px;
  color: var(--text-primary);
  font-weight: 700;
}

.page-products .zone p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-muted);
}

/* ---------- 导航切换 ---------- */
.page-products .nav-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 34px);
}

.page-products .nav-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .nav-points li {
  padding: 16px 0 16px 16px;
  border-left: 1px solid var(--line-c);
}

.page-products .nav-points li:first-child {
  border-left-color: var(--ember-500);
}

.page-products .nav-points__k {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ember-300);
  margin-bottom: 6px;
}

.page-products .nav-points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 44ch;
}

.page-products .nav-split .dl-figure {
  margin-bottom: 0;
}

.page-products .stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 3vw, 36px);
  background: var(--line-c);
  border: 1px solid var(--line-c);
}

.page-products .stat-row .stat {
  background: var(--ink-950);
  padding: 16px 18px;
}

.page-products .stat__value {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--ember-500);
  letter-spacing: 0.01em;
}

/* ---------- 系统要求 ---------- */
.page-products .req-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 34px);
  margin-bottom: clamp(22px, 2.6vw, 34px);
}

.page-products .req-table-wrap {
  min-width: 0;
}

.page-products .spec-table--req {
  min-width: 460px;
}

.page-products .spec-table--req tbody th {
  font-size: 14px;
  color: var(--text-primary);
  width: 34%;
}

.page-products .req-split .dl-figure {
  margin-bottom: 0;
}

/* ---------- 折叠问答 ---------- */
.page-products .qa {
  border-top: 1px solid var(--line-c);
}

.page-products .qa:last-of-type {
  border-bottom: 1px solid var(--line-c);
}

.page-products .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.page-products .qa summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.3;
  color: var(--ember-500);
}

.page-products .qa[open] summary::after {
  content: "–";
}

.page-products .qa summary:hover {
  color: var(--ember-300);
}

.page-products .qa__body {
  padding: 0 0 18px;
}

.page-products .qa__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 安装步骤 ---------- */
.page-products .step-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-c);
  border: 1px solid var(--line-c);
}

.page-products .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 16px;
  background: var(--carbon-800);
}

.page-products .step__num {
  font-size: 20px;
  line-height: 1.2;
  color: var(--ember-500);
  letter-spacing: 0.02em;
}

.page-products .step__body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 700;
}

.page-products .step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 版本记录 ---------- */
.page-products .dl-block--log {
  position: relative;
}

.page-products .log-bg {
  position: relative;
  margin-bottom: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line-c);
  background: var(--ink-950);
  overflow: hidden;
}

.page-products .log-bg img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  opacity: 0.5;
  object-fit: cover;
}

.page-products .track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .track__item {
  position: relative;
  padding-top: 20px;
  border-top: 1px solid var(--line-c);
}

.page-products .track__dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--ember-500);
}

.page-products .track__ver {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ember-300);
}

.page-products .track__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--text-primary);
  font-weight: 700;
}

.page-products .track__item p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 42ch;
}

/* ---------- 问题指引 ---------- */
.page-products .help-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(26px, 3vw, 38px);
  background: var(--line-c);
  border: 1px solid var(--line-c);
}

.page-products .help-link {
  display: block;
  padding: 16px 18px;
  background: var(--pitch-900);
  text-decoration: none;
  transition: background 160ms var(--ease);
}

.page-products .help-link .mono {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel-400);
  margin-bottom: 6px;
}

.page-products .help-link strong {
  display: block;
  font-size: 14.5px;
  line-height: 1.72;
  font-weight: 500;
  color: var(--text-primary);
}

.page-products .help-link:hover,
.page-products .help-link:focus-visible {
  background: var(--carbon-800);
}

.page-products .help-link:hover .mono,
.page-products .help-link:focus-visible .mono {
  color: var(--ember-300);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .zone-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .page-products .track__item {
    border-top: 1px solid var(--line-c);
    padding: 22px 20px 0 0;
  }

  .page-products .track__item + .track__item {
    padding-left: 20px;
  }
}

@media (min-width: 900px) {
  .page-products .dl-head {
    grid-template-columns: minmax(0, 1fr) 168px;
    gap: 28px;
  }

  .page-products .dl-stamp {
    display: flex;
  }

  .page-products .nav-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .req-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

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

  .page-products .dl-rail {
    position: sticky;
    top: calc(var(--topbar-h) + 26px);
    align-self: start;
    margin-bottom: 0;
    padding: 4px 0 4px 16px;
    border-bottom: 0;
    border-left: 1px solid var(--line-c);
    max-height: calc(100vh - var(--topbar-h) - 80px);
    overflow-y: auto;
  }

  .page-products .dl-rail__title {
    display: block;
  }

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

  .page-products .dl-rail__list li + li {
    margin-top: 2px;
  }

  .page-products .dl-rail__list a {
    display: flex;
    border: 0;
    padding: 7px 0;
    font-size: 13.5px;
  }

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

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

  .page-products .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .page-products .lede {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-rail__list a,
  .page-products .help-link {
    transition: none;
  }
}
<<<END>>>