.page-app-download {
  --client-no-col: calc(var(--space-4) + var(--space-3));
  --client-hair: var(--border-thin) solid var(--color-line);
  --client-dot: var(--border-thin) dotted var(--color-line);
  --client-dash: var(--border-thin) dashed var(--color-line);
}

/* ============ 首屏海报层 ============ */
.page-app-download .client-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-top: var(--space-4);
}

.page-app-download .client-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 54%;
  height: 66%;
  background: var(--color-primary);
  opacity: 0.18;
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-app-download .client-hero .breadcrumb {
  position: relative;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.page-app-download .client-hero .breadcrumb a {
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) dotted var(--color-contrast-line);
}

.page-app-download .client-hero .breadcrumb a:hover,
.page-app-download .client-hero .breadcrumb a:focus-visible {
  border-bottom-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
}

.page-app-download .client-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) 0 var(--space-8);
}

.page-app-download .client-hero__kicker {
  margin: 0;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-app-download .client-hero__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.94;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .client-hero__title span {
  display: block;
  color: var(--color-primary);
}

.page-app-download .client-hero__intro {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* 控制台面板 */
.page-app-download .console {
  background: color-mix(in srgb, var(--color-contrast-surface) 72%, black);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

.page-app-download .console__head {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .console__pulse {
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--color-contrast-accent);
}

.page-app-download .console__head-label {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-app-download .console__stats {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.page-app-download .console__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-2);
  border-left: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .console__num {
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-app-download .console__label {
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

.page-app-download .console__note {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--client-dash);
  border-top-color: var(--color-contrast-line);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

/* 斜切色带 */
.page-app-download .client-hero__strip {
  position: relative;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  padding: var(--space-6) 0 var(--space-3);
  clip-path: polygon(0 34%, 100% 0, 100% 100%, 0 100%);
}

.page-app-download .client-hero__strip p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ============ 目录条目 ============ */
.page-app-download .client-index {
  background: var(--color-surface);
}

.page-app-download .client-index__lede,
.page-app-download .client-versions__lede,
.page-app-download .client-prep__lede {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .client-index__list {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-app-download .client-index__rule {
  grid-column: 1 / -1;
  height: 0;
  border-top: var(--client-dash);
  margin: var(--space-1) 0;
}

.page-app-download .entry-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--client-hair);
  border-radius: var(--radius-sm);
  align-items: start;
}

.page-app-download .entry-card__no {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
  text-align: left;
  padding-bottom: var(--space-1);
  border-bottom: var(--client-dot);
}

.page-app-download .entry-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
}

.page-app-download .entry-card__tags .tag {
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

.page-app-download .entry-card__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .entry-card__desc {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .entry-card__line {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-app-download .entry-card__line span {
  display: inline-block;
  min-width: 4.5em;
  margin-right: var(--space-1);
  font-family: var(--font-mono);
  color: var(--color-ink-soft);
}

/* ============ 形态差异对照带 ============ */
.page-app-download .client-compare {
  background: var(--color-surface);
}

.page-app-download .compare-scroll {
  margin-top: var(--space-6);
  overflow-x: auto;
  border-top: var(--border-thin) solid var(--color-contrast-surface);
}

.page-app-download .compare-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: var(--text-base);
  color: var(--color-ink);
}

.page-app-download .compare-col--key { width: 24%; }
.page-app-download .compare-col--a { width: 27%; }
.page-app-download .compare-col--b { width: 23%; }
.page-app-download .compare-col--c { width: 26%; }

.page-app-download .compare-table th,
.page-app-download .compare-table td {
  text-align: left;
  vertical-align: top;
  padding: var(--space-2) var(--space-3) var(--space-2) 0;
  border-bottom: var(--client-dot);
}

.page-app-download .compare-table thead th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  letter-spacing: 0.04em;
  color: var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-contrast-surface);
  padding-bottom: var(--space-2);
}

.page-app-download .compare-row-key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

.page-app-download .compare-table tbody tr:nth-child(odd) td,
.page-app-download .compare-table tbody tr:nth-child(odd) th {
  background: var(--color-surface-alt);
}

.page-app-download .compare-table tbody tr:nth-child(odd) td:first-of-type {
  padding-left: var(--space-2);
}

.page-app-download .client-compare__figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-app-download .client-figure {
  margin: 0;
}

.page-app-download .client-figure .media-frame {
  border-radius: var(--radius-sm);
  border: var(--client-hair);
}

.page-app-download .client-figure .media-caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ============ 版本节点刻度 ============ */
.page-app-download .client-versions {
  background: var(--color-surface-alt);
}

.page-app-download .version-scale {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-app-download .version-node {
  position: relative;
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  border-left: var(--client-hair);
}

.page-app-download .version-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: var(--space-1);
  height: var(--space-1);
  background: var(--color-ink-muted);
  transform: translateX(-50%);
}

.page-app-download .version-node--active::before {
  background: var(--color-accent);
}

.page-app-download .version-node--maintained::before {
  background: var(--color-primary);
}

.page-app-download .version-node--archived::before {
  background: var(--color-ink-muted);
}

.page-app-download .version-node__no {
  display: block;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-ink);
}

.page-app-download .version-node__name {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .version-node__line {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-app-download .version-node__tag {
  display: inline-block;
  margin: var(--space-2) 0 0;
  padding: 2px var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
}

.page-app-download .version-node--active .version-node__tag {
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-app-download .version-node--maintained .version-node__tag {
  background: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-app-download .client-versions__figure {
  margin: var(--space-6) 0 0;
}

.page-app-download .client-versions__figure .media-frame {
  border: var(--client-hair);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.page-app-download .client-versions__figure .media-caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ============ 安装准备清单 ============ */
.page-app-download .client-prep {
  background: var(--color-surface);
}

.page-app-download .client-prep__figure {
  margin: var(--space-6) 0 0;
}

.page-app-download .client-prep__figure .media-frame {
  border: var(--client-hair);
  border-radius: var(--radius-sm);
}

.page-app-download .client-prep__figure .media-caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-app-download .prep-stages {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-app-download .prep-stage {
  border-top: var(--border-thin) solid var(--color-contrast-surface);
  padding-top: var(--space-3);
}

.page-app-download .prep-stage__name {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .prep-stage__name .mono {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.page-app-download .prep-checks {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-app-download .prep-check {
  display: grid;
  grid-template-columns: calc(var(--space-4) + var(--space-1)) minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-bottom: var(--client-dot);
}

.page-app-download .prep-check__no {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.1;
  color: var(--color-accent);
}

.page-app-download .prep-check__what {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download .prep-check__how {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-app-download .prep-check__how span {
  font-family: var(--font-mono);
  color: var(--color-ink-soft);
  margin-right: var(--space-1);
}

.page-app-download .prep-stage__pit {
  margin: var(--space-3) 0 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-highlight);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-app-download .prep-stage__pit .mono {
  display: block;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.page-app-download .prep-stage__pit a,
.page-app-download .client-note__text a {
  color: inherit;
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-app-download .prep-stage__pit a:focus-visible,
.page-app-download .client-note__text a:focus-visible,
.page-app-download .client-hero .breadcrumb a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ============ 收口说明 ============ */
.page-app-download .client-note {
  margin-top: var(--space-6);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
}

.page-app-download .client-note__lead {
  margin: 0;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-app-download .client-note__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .client-note__text {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* ============ 响应式 ============ */
@media (min-width: 560px) {
  .page-app-download .entry-card {
    grid-template-columns: var(--client-no-col) minmax(0, 1fr);
    gap: var(--space-3);
  }

  .page-app-download .entry-card__no {
    text-align: right;
  }
}

@media (min-width: 760px) {
  .page-app-download .client-hero {
    padding-top: var(--space-6);
  }

  .page-app-download .client-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: var(--space-6);
    align-items: end;
    padding: var(--space-8) 0 var(--space-8);
  }

  .page-app-download .client-index__list {
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: var(--space-3) var(--gutter);
  }

  .page-app-download .entry-card--w6 { grid-column: span 6; }
  .page-app-download .entry-card--w5 { grid-column: span 5; }
  .page-app-download .entry-card--w4 { grid-column: span 4; }
  .page-app-download .entry-card--w3 { grid-column: span 3; }

  .page-app-download .client-compare__figures {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    gap: var(--gutter);
    align-items: start;
  }

  .page-app-download .version-scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4) var(--gutter);
  }
}

@media (min-width: 900px) {
  .page-app-download .prep-stage {
    display: grid;
    grid-template-columns: calc(var(--space-8) + var(--space-6)) minmax(0, 1fr);
    gap: var(--gutter);
  }

  .page-app-download .prep-stage__name {
    margin-bottom: 0;
    position: sticky;
    top: var(--space-6);
  }

  .page-app-download .client-note {
    padding: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download .client-hero::before {
    opacity: 0.14;
  }
}
<<<END>>>