.page-app-download-android {
  --android-dot-line: linear-gradient(to bottom, var(--color-line) 50%, transparent 50%);
}

/* ---------- 面包屑 ---------- */
.page-app-download-android .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-3) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-app-download-android .breadcrumbs a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-line);
  padding-bottom: 1px;
  transition: color 180ms linear, border-color 180ms linear;
}

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

.page-app-download-android .breadcrumbs [aria-current="page"] {
  color: var(--color-ink);
}

/* ---------- 页首 ---------- */
.page-app-download-android .android-head {
  position: relative;
  padding-block: var(--space-6) var(--space-2);
}

.page-app-download-android .android-head::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: var(--space-6);
  background-image: linear-gradient(to right, var(--color-line) 50%, transparent 50%);
  background-size: 10px 1px;
  background-repeat: repeat-x;
}

.page-app-download-android .android-head .eyebrow {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

.page-app-download-android .android-head__title {
  margin: 0;
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download-android .android-head__lead {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 范围说明 ---------- */
.page-app-download-android .android-scope__rail {
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.page-app-download-android .android-scope__rail .rail__label {
  display: inline-block;
  justify-self: start;
  padding: 4px var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

.page-app-download-android .android-scope__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-app-download-android .android-scope__main h2 {
  margin: 0 0 var(--space-3);
  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-android .android-scope__main p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .android-scope__main p:last-child {
  margin-bottom: 0;
}

.page-app-download-android .android-scope__main a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid color-mix(in srgb, var(--color-primary) 70%, transparent);
  padding-bottom: 1px;
}

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

/* ---------- 准备清单 ---------- */
.page-app-download-android .android-prep__title,
.page-app-download-android .android-diff__title,
.page-app-download-android .android-route__title {
  margin: 0 0 var(--space-3);
  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-android .android-prep__lead,
.page-app-download-android .android-diff__lead {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .android-prep__figure {
  margin: 0 0 var(--space-6);
  max-width: 720px;
}

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

.page-app-download-android .prep-item {
  position: relative;
}

.page-app-download-android .prep-item__check {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-app-download-android .prep-item__face {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface-alt) 72%, transparent);
  cursor: pointer;
  transition: border-color 180ms linear, background-color 180ms linear;
}

.page-app-download-android .prep-item__face:hover {
  border-color: color-mix(in srgb, var(--color-accent) 42%, var(--color-line));
}

.page-app-download-android .prep-item__check:focus-visible + .prep-item__face {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-app-download-android .prep-item__check:checked + .prep-item__face {
  border-color: color-mix(in srgb, var(--color-accent) 58%, var(--color-line));
  background: color-mix(in srgb, var(--color-highlight) 48%, var(--color-surface-alt));
}

.page-app-download-android .prep-item__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 46%, transparent);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1;
}

.page-app-download-android .prep-item__body {
  display: grid;
  gap: var(--space-1);
  min-width: 0;
}

.page-app-download-android .prep-item__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download-android .prep-item__desc {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .prep-item__box {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 6px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.page-app-download-android .prep-item__box::after {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: calc(var(--radius-sm) / 2);
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 160ms linear;
}

.page-app-download-android .prep-item__check:checked + .prep-item__face .prep-item__box::after {
  opacity: 1;
}

.page-app-download-android .prep-item__check:checked + .prep-item__face .prep-item__title {
  color: color-mix(in srgb, var(--color-ink) 78%, var(--color-accent));
}

/* ---------- 差异对比 ---------- */
.page-app-download-android .android-diff__figure {
  margin: 0 0 var(--space-6);
  max-width: 720px;
}

.page-app-download-android .diff-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: var(--text-base);
}

.page-app-download-android .diff-table__caption {
  caption-side: top;
  text-align: left;
  padding-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-app-download-android .diff-table th,
.page-app-download-android .diff-table td {
  padding: var(--space-3);
  text-align: left;
  vertical-align: top;
  line-height: var(--leading-body);
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 180ms linear;
}

.page-app-download-android .diff-table thead th {
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.04em;
  border-bottom-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-line));
}

.page-app-download-android .diff-table tbody th {
  color: var(--color-ink);
  font-weight: var(--weight-heading);
  white-space: nowrap;
}

.page-app-download-android .diff-table tbody td {
  color: var(--color-ink-soft);
}

.page-app-download-android .diff-table .is-focus {
  background: color-mix(in srgb, var(--color-primary-soft) 62%, transparent);
  color: var(--color-ink);
}

.page-app-download-android .diff-table thead .is-focus {
  background: color-mix(in srgb, var(--color-primary-soft) 92%, transparent);
  box-shadow: inset 0 -2px 0 0 var(--color-accent);
}

.page-app-download-android .diff-table tbody tr:hover .is-focus {
  background: color-mix(in srgb, var(--color-primary-soft) 95%, transparent);
}

/* ---------- 路径 ---------- */
.page-app-download-android .android-route__grid {
  display: grid;
  gap: var(--space-4);
  align-items: start;
  margin-bottom: var(--space-6);
}

.page-app-download-android .android-route__intro p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .android-route__figure {
  margin: 0;
  max-width: 360px;
}

.page-app-download-android .route-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-app-download-android .route-node {
  position: relative;
  padding: 0 0 var(--space-6) var(--space-6);
}

.page-app-download-android .route-node::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 4px;
  bottom: var(--space-6);
  width: 1px;
  background-image: var(--android-dot-line);
  background-size: 1px 8px;
  background-repeat: repeat-y;
}

.page-app-download-android .route-node:last-child {
  padding-bottom: 0;
}

.page-app-download-android .route-node:last-child::before {
  display: none;
}

.page-app-download-android .route-node__dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 19px;
  height: 19px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-app-download-android .route-node--main .route-node__dot {
  border-color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 28%, var(--color-surface));
  box-shadow: var(--shadow-1);
}

.page-app-download-android .route-node__body {
  display: grid;
  gap: var(--space-1);
}

.page-app-download-android .route-node__index {
  justify-self: start;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-app-download-android .route-node--main .route-node__index {
  border-color: color-mix(in srgb, var(--color-accent) 55%, transparent);
  color: var(--color-accent);
}

.page-app-download-android .route-node__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download-android .route-node__meta {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 边界说明 ---------- */
.page-app-download-android .android-limits__panel {
  padding: var(--space-4);
}

.page-app-download-android .android-limits__panel .panel__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-app-download-android .limits-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding-bottom: var(--space-2);
  border-bottom: 1px dotted var(--color-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .limits-list__item:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-app-download-android .limits-list__mark {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
}

.page-app-download-android .limits-list__tail {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-3);
  border-top: 1px dotted var(--color-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download-android .limits-list__tail a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid color-mix(in srgb, var(--color-accent) 65%, transparent);
  padding-bottom: 1px;
}

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

/* ---------- 返回与出口 ---------- */
.page-app-download-android .back-strip {
  display: grid;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-4);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface-alt) 82%, transparent);
}

.page-app-download-android .back-strip__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download-android .back-strip__text p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download-android .back-strip__link {
  justify-self: start;
  display: inline-block;
  padding: 10px var(--space-3);
  border-radius: var(--radius-sm);
  border: var(--border-thin) solid var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 16%, transparent);
  color: var(--color-ink);
  font-weight: var(--weight-heading);
  text-decoration: none;
  transition: background-color 180ms linear, box-shadow 180ms linear;
}

.page-app-download-android .back-strip__link:hover,
.page-app-download-android .back-strip__link:focus-visible {
  background: color-mix(in srgb, var(--color-accent) 28%, transparent);
  box-shadow: var(--shadow-2);
}

.page-app-download-android .android-onward {
  margin-top: var(--space-4);
}

.page-app-download-android .onward-card {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  color: inherit;
  text-decoration: none;
  transition: border-color 180ms linear, transform 180ms linear;
}

.page-app-download-android .onward-card:hover,
.page-app-download-android .onward-card:focus-visible {
  border-color: color-mix(in srgb, var(--color-accent) 52%, transparent);
}

.page-app-download-android .onward-card__kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-app-download-android .onward-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download-android .onward-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-app-download-android .android-head__title {
    max-width: 22ch;
  }

  .page-app-download-android .prep-item__face {
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .page-app-download-android .android-limits__panel {
    padding: var(--space-6);
  }

  .page-app-download-android .back-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: var(--space-4) var(--space-6);
  }

  .page-app-download-android .back-strip__link {
    justify-self: end;
  }
}

@media (min-width: 900px) {
  .page-app-download-android .android-route__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    gap: var(--space-6);
  }

  .page-app-download-android .android-route__figure {
    justify-self: end;
  }

  .page-app-download-android .route-flow {
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: var(--space-6);
  }

  .page-app-download-android .route-node {
    padding: var(--space-6) 0 0 0;
  }

  .page-app-download-android .route-node::before {
    left: 0;
    right: 0;
    top: 9px;
    bottom: auto;
    width: auto;
    height: 1px;
    background-image: linear-gradient(to right, var(--color-line) 50%, transparent 50%);
    background-size: 10px 1px;
    background-repeat: repeat-x;
  }

  .page-app-download-android .route-node:last-child::before {
    display: block;
    right: 50%;
  }

  .page-app-download-android .route-node__dot {
    top: 0;
    left: 0;
  }
}
<<<END>>>