.page-app-download {
  --app-step-bg: var(--color-surface);
  --app-step-accent: var(--color-primary);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-app-download .app-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-app-download .app-crumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-app-download .app-crumb a:hover,
.page-app-download .app-crumb a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-app-download .app-crumb__sep {
  color: var(--color-line);
}

/* ---------- 首屏 ---------- */
.page-app-download .app-hero {
  margin-top: var(--space-3);
  padding: var(--section-y) 0 var(--space-6);
  background-color: var(--color-contrast-surface);
  background-image: repeating-linear-gradient(
    112deg,
    color-mix(in srgb, var(--color-contrast-line) 48%, transparent) 0 var(--border-thin),
    transparent var(--border-thin) var(--space-8)
  );
  color: var(--color-contrast-ink);
  overflow: hidden;
}

.page-app-download .app-hero__inner {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.page-app-download .app-hero__eyebrow {
  color: var(--color-contrast-ink);
  opacity: 0.72;
  margin: 0 0 var(--space-2);
}

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

.page-app-download .app-hero__sub {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-app-download .app-hero__figure {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
}

.page-app-download .app-hero__figure-num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-app-download .app-hero__figure-cap {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

.page-app-download .app-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-app-download .app-hero__media {
  position: relative;
  margin: 0;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-contrast-surface);
}

.page-app-download .app-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-app-download .app-hero__overlay {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  justify-content: flex-end;
}

.page-app-download .app-hero__overlay-label {
  margin: 0;
  color: var(--color-contrast-ink);
  opacity: 0.8;
}

.page-app-download .app-hero__phases {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-app-download .app-hero__phase {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0 var(--space-2);
  padding: var(--space-1) var(--space-2);
  background: color-mix(in srgb, var(--color-contrast-surface) 78%, transparent);
  border-left: var(--border-thick) solid var(--color-contrast-line);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-app-download .app-hero__phase--prepare {
  border-left-color: var(--color-primary);
}

.page-app-download .app-hero__phase--get {
  border-left-color: var(--color-accent);
}

.page-app-download .app-hero__phase--check {
  border-left-color: var(--color-contrast-accent);
}

.page-app-download .app-hero__phase-idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  opacity: 0.65;
}

.page-app-download .app-hero__phase-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .app-hero__phase-note {
  grid-column: 2;
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-app-download .app-hero__statswrap {
  margin-top: var(--space-6);
}

.page-app-download .app-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--border-thin);
  background: var(--color-contrast-line);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-app-download .app-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  background: var(--color-contrast-surface);
}

.page-app-download .app-hero__stats .stat__value {
  font-family: var(--font-mono);
  color: var(--color-contrast-ink);
  line-height: 1;
}

.page-app-download .app-hero__stats .stat__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-contrast-ink);
  opacity: 0.68;
}

.page-app-download .app-hero__axiswrap {
  margin-top: var(--space-6);
}

.page-app-download .app-hero__axis-label {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-ink);
  opacity: 0.64;
}

.page-app-download .app-axis {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-2);
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-app-download .app-axis__link {
  flex: 0 0 auto;
  min-width: var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  text-decoration: none;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-top: var(--border-thick) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  transition: border-color 200ms ease, color 200ms ease;
}

.page-app-download .app-axis__link--prepare {
  border-top-color: var(--color-primary);
}

.page-app-download .app-axis__link--get {
  border-top-color: var(--color-accent);
}

.page-app-download .app-axis__link--check {
  border-top-color: var(--color-contrast-accent);
}

.page-app-download .app-axis__link:hover,
.page-app-download .app-axis__link:focus-visible {
  border-color: var(--color-contrast-ink);
}

.page-app-download .app-axis__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--color-contrast-ink);
}

.page-app-download .app-axis__phase {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  opacity: 0.62;
}

/* ---------- 主体布局 ---------- */
.page-app-download .app-body {
  display: grid;
  gap: var(--space-6);
  padding-top: var(--section-y);
  padding-bottom: var(--section-y-lg);
}

.page-app-download .app-toc {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  padding: var(--space-2);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-app-download .app-toc__title {
  flex: 1 0 100%;
  margin: 0;
  color: var(--color-ink-muted);
}

.page-app-download .app-toc .toc__link {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-left: var(--border-thick) solid transparent;
  border-radius: var(--radius-sm);
}

.page-app-download .app-toc .toc__link:hover,
.page-app-download .app-toc .toc__link:focus-visible,
.page-app-download .app-toc .toc__link.is-active,
.page-app-download .app-toc .toc__link[aria-current] {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

.page-app-download .app-flow {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}

.page-app-download .app-block {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  min-width: 0;
}

.page-app-download .app-block--alt {
  --app-step-bg: var(--color-surface-alt);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download .app-block--deep {
  --app-step-bg: var(--color-surface-deep);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download .app-block--soft {
  --app-step-bg: var(--color-primary-soft);
  background: var(--color-primary-soft);
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download .app-block--prepare {
  --app-step-accent: var(--color-primary);
}

.page-app-download .app-block--get {
  --app-step-accent: var(--color-accent);
}

.page-app-download .app-block--check {
  --app-step-accent: var(--color-ink-soft);
}

.page-app-download .app-block__head {
  margin-bottom: var(--space-4);
}

.page-app-download .app-block__kicker {
  margin: 0 0 var(--space-2);
  color: var(--color-ink-muted);
}

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

.page-app-download .app-block__title::after {
  content: "";
  display: block;
  width: var(--space-6);
  height: var(--border-thick);
  margin-top: var(--space-2);
  background: var(--color-accent);
}

.page-app-download .app-block__lead {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-app-download .app-block__foot {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-block__figure {
  margin: 0 0 var(--space-4);
}

/* ---------- 阶段卡片 ---------- */
.page-app-download .app-phases {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-app-download .app-phase {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-md);
}

.page-app-download .app-phase--get {
  border-left-color: var(--color-accent);
}

.page-app-download .app-phase--check {
  border-left-color: var(--color-ink-soft);
  background: var(--color-surface-deep);
}

.page-app-download .app-phase__tag {
  margin: 0;
  color: var(--color-ink-muted);
}

.page-app-download .app-phase__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-app-download .app-phase__text {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-phase__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-app-download .app-phase__list li {
  padding-left: var(--space-2);
  border-left: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-phase__jump {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) dotted var(--color-primary);
  align-self: flex-start;
}

.page-app-download .app-phase__jump:hover,
.page-app-download .app-phase__jump:focus-visible {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

/* ---------- 步骤轴与步骤条目 ---------- */
.page-app-download .app-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-app-download .app-steps::before {
  content: "";
  position: absolute;
  top: var(--space-2);
  bottom: var(--space-4);
  left: calc(var(--space-3) - var(--border-thin));
  width: var(--border-thin);
  background: var(--color-line);
}

.page-app-download .app-step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  padding-bottom: var(--space-4);
}

.page-app-download .app-step:last-child {
  padding-bottom: 0;
}

.page-app-download .app-step__num {
  position: relative;
  z-index: 1;
  align-self: start;
  width: var(--space-6);
  padding: var(--space-1) 0 calc(var(--space-1) + var(--border-thick));
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--app-step-accent);
  background: var(--app-step-bg);
  border: var(--border-thick) solid var(--app-step-accent);
  border-radius: var(--radius-sm);
}

.page-app-download .app-step__num::after {
  content: "";
  display: block;
  width: 56%;
  height: var(--border-thick);
  margin: var(--space-1) auto 0;
  background: currentColor;
}

.page-app-download .app-step__card {
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-app-download .app-step__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download .app-step__text {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-step__text a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-highlight);
}

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

.page-app-download .app-step__meta {
  margin: var(--space-2) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  display: grid;
  gap: var(--space-1);
}

.page-app-download .app-step__meta-row {
  display: grid;
  gap: 0 var(--space-2);
}

.page-app-download .app-step__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-app-download .app-step__meta dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-steps--check .app-step__card {
  background: var(--color-surface);
}

.page-app-download .app-note {
  margin-top: var(--space-4);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-app-download .app-note__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-app-download .app-note p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download .app-note a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) dotted var(--color-primary);
}

/* ---------- 版本差异表 ---------- */
.page-app-download .app-table-wrap {
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-app-download .app-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-app-download .app-table thead th {
  background: var(--color-surface-deep);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-align: left;
  padding: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .app-table tbody th {
  text-align: left;
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  padding: var(--space-2);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-app-download .app-table td {
  padding: var(--space-2);
  color: var(--color-ink-soft);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

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

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

.page-app-download .app-table td:nth-child(2) {
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.page-app-download .app-table td:nth-child(4) {
  color: var(--color-accent);
  font-family: var(--font-mono);
}

/* ---------- 子页与相关栏目 ---------- */
.page-app-download .app-next {
  display: grid;
  gap: var(--space-4);
}

.page-app-download .app-next__media {
  margin: 0;
}

.page-app-download .app-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-app-download .app-link {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-app-download .app-link__tag {
  margin: 0 0 var(--space-1);
  color: var(--color-ink-muted);
}

.page-app-download .app-link__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-app-download .app-link__title a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-highlight);
}

.page-app-download .app-link__title a:hover,
.page-app-download .app-link__title a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.page-app-download .app-link__text {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-app-download .app-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-app-download .app-phases {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-app-download .app-step__meta-row {
    grid-template-columns: minmax(0, 7ch) minmax(0, 1fr);
  }

  .page-app-download .app-next {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-app-download .app-block {
    padding: var(--space-4);
  }
}

@media (min-width: 960px) {
  .page-app-download .app-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-8);
  }

  .page-app-download .app-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 4fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download .app-toc {
    position: sticky;
    top: var(--space-6);
    flex-direction: column;
    flex-wrap: nowrap;
    gap: var(--space-1);
  }

  .page-app-download .app-toc .toc__link {
    display: block;
  }

  .page-app-download .app-steps::before {
    left: calc(var(--space-3) - var(--border-thin));
  }

  .page-app-download .app-table {
    font-size: var(--text-base);
  }
}

@media (max-width: 519px) {
  .page-app-download .app-table thead {
    display: none;
  }

  .page-app-download .app-table,
  .page-app-download .app-table tbody,
  .page-app-download .app-table tr,
  .page-app-download .app-table th,
  .page-app-download .app-table td {
    display: block;
    width: 100%;
  }

  .page-app-download .app-table tr {
    border-bottom: var(--border-thin) solid var(--color-line);
    padding: var(--space-2) 0;
  }

  .page-app-download .app-table tbody th {
    border-bottom: 0;
    padding-bottom: var(--space-1);
  }

  .page-app-download .app-table td {
    border-bottom: 0;
    padding: var(--space-1) var(--space-2);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-2);
  }

  .page-app-download .app-table td::before {
    content: attr(data-label);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.08em;
    color: var(--color-ink-muted);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download .app-axis__link {
    transition: none;
  }
}