.page-app-download-android {
  --android-block-gap: var(--space-8);
}

/* ---------- 首屏 ---------- */
.page-app-download-android .android-hero {
  padding-top: var(--space-3);
  padding-bottom: var(--space-6);
  background: var(--color-surface);
  border-bottom: var(--border-thin) dashed var(--color-line);
}

.page-app-download-android .android-hero .breadcrumb {
  margin-bottom: var(--space-6);
}

.page-app-download-android .android-hero__grid {
  display: grid;
  gap: var(--space-6);
}

.page-app-download-android .android-hero__lead h1 {
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: var(--space-2) 0 var(--space-3);
}

.page-app-download-android .android-hero__lead .lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  font-size: var(--text-base);
}

.page-app-download-android .android-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
}

.page-app-download-android .android-metric {
  flex: 1 1 130px;
  min-width: 130px;
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}

.page-app-download-android .android-metric:nth-child(2) {
  border-left-color: var(--color-accent);
}

.page-app-download-android .android-metric:nth-child(3) {
  border-left-color: var(--color-contrast-surface);
}

.page-app-download-android .android-metric__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.page-app-download-android .android-metric__value {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0;
}

.page-app-download-android .android-metric__num {
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.page-app-download-android .android-metric__unit {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download-android .android-hero__visual {
  margin: 0;
}

.page-app-download-android .android-hero__visual .media-frame {
  border: var(--border-thick) solid var(--color-ink);
  background: var(--color-surface-alt);
}

.page-app-download-android .android-hero__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-app-download-android .android-hero__cap {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-app-download-android .android-rings {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download-android .android-rings__dot {
  width: var(--space-3);
  height: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
}

.page-app-download-android .android-rings__dot:nth-child(2) {
  background: var(--color-accent);
}

.page-app-download-android .android-rings__dot:nth-child(3) {
  background: var(--color-contrast-surface);
}

.page-app-download-android .android-rings__dot:nth-child(4) {
  width: var(--space-6);
  background: var(--color-primary-soft);
}

.page-app-download-android .android-rings__dot:nth-child(5) {
  background: var(--color-highlight);
}

/* ---------- 页面骨架与侧边目录 ---------- */
.page-app-download-android .android-body__grid {
  display: grid;
  gap: var(--space-6);
}

.page-app-download-android .android-toc {
  padding-bottom: var(--space-3);
}

.page-app-download-android .android-toc .toc__title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) dashed var(--color-line);
  margin-bottom: var(--space-2);
}

.page-app-download-android .android-toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-app-download-android .android-toc .toc__link {
  display: 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 var(--color-line);
  transition: background-color var(--dur-base) var(--ease-flat),
              color var(--dur-base) var(--ease-flat),
              border-color var(--dur-base) var(--ease-flat);
}

.page-app-download-android .android-toc .toc__link:hover,
.page-app-download-android .android-toc .toc__link:focus-visible {
  background: var(--color-primary-soft);
  color: var(--color-ink);
  border-left-color: var(--color-primary);
}

.page-app-download-android .android-toc .toc__link[aria-current="true"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-left-color: var(--color-contrast-surface);
}

/* ---------- 区块 ---------- */
.page-app-download-android .android-block + .android-block {
  margin-top: var(--android-block-gap);
}

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

.page-app-download-android .android-block__head {
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-app-download-android .android-block__head h2 {
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: var(--space-2) 0 0;
}

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

.page-app-download-android .android-note {
  max-width: var(--measure);
  margin-top: var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-alt);
  border-left: var(--border-thick) solid var(--color-primary);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-app-download-android .android-inline-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-app-download-android .android-inline-link:hover,
.page-app-download-android .android-inline-link:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  text-decoration: none;
}

/* ---------- 二选一对照 ---------- */
.page-app-download-android .choose-pair {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-app-download-android .choose-card {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-app-download-android .choose-card h3 {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-2);
}

.page-app-download-android .choose-card--app {
  border-top: var(--border-thick) solid var(--color-primary);
  background: var(--color-primary-soft);
}

.page-app-download-android .choose-card--web {
  border-top: var(--border-thick) solid var(--color-contrast-surface);
  background: var(--color-surface-alt);
}

.page-app-download-android .choose-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-app-download-android .choose-list li {
  position: relative;
  padding-left: var(--space-3);
  padding-bottom: var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download-android .choose-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
}

.page-app-download-android .choose-card--web .choose-list li::before {
  background: var(--color-contrast-surface);
}

.page-app-download-android .choose-list li:last-child {
  padding-bottom: 0;
}

/* ---------- 准备清单 ---------- */
.page-app-download-android .prepare-list {
  margin-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download-android .prepare-item {
  border-bottom: var(--border-thin) dashed var(--color-line);
}

.page-app-download-android .prepare-item__label {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-3) 0;
  cursor: pointer;
  transition: background-color var(--dur-base) var(--ease-flat);
}

.page-app-download-android .prepare-item__label:hover {
  background: var(--color-surface-alt);
}

.page-app-download-android .prepare-item__box {
  flex: 0 0 auto;
  width: var(--space-3);
  height: var(--space-3);
  margin-top: 2px;
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-pill);
  display: grid;
  place-items: center;
  transition: background-color var(--dur-fast) var(--ease-flat),
              border-color var(--dur-fast) var(--ease-flat);
}

.page-app-download-android .prepare-item__check:checked + .prepare-item__label .prepare-item__box {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-app-download-android .prepare-item__check:checked + .prepare-item__label .prepare-item__box::after {
  content: "";
  width: var(--space-1);
  height: calc(var(--space-1) / 2);
  border-left: var(--border-thin) solid var(--color-accent-ink);
  border-bottom: var(--border-thin) solid var(--color-accent-ink);
  transform: rotate(-45deg) translate(1px, -1px);
}

.page-app-download-android .prepare-item__check:focus-visible + .prepare-item__label .prepare-item__box {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-app-download-android .prepare-item__body {
  display: block;
}

.page-app-download-android .prepare-item__title {
  display: block;
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  line-height: 1.4;
  color: var(--color-ink);
}

.page-app-download-android .prepare-item__desc {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

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

.page-app-download-android .android-figure .media-frame {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
}

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

.page-app-download-android .android-figure .media-frame__caption {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 差异对照表 ---------- */
.page-app-download-android .diff-wrap {
  margin-top: var(--space-4);
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download-android .diff-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  background: var(--color-surface);
}

.page-app-download-android .diff-table th,
.page-app-download-android .diff-table td {
  text-align: left;
  vertical-align: top;
  padding: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download-android .diff-table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
  background: var(--color-surface-deep);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-app-download-android .diff-table tbody th {
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  border-left: var(--border-thick) solid var(--color-primary);
  width: 22%;
}

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

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

/* ---------- 权限列表 ---------- */
.page-app-download-android .perm-list {
  margin: var(--space-4) 0 0;
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-app-download-android .perm-row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) dashed var(--color-line);
}

.page-app-download-android .perm-row__term {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

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

.page-app-download-android .usage-strip {
  display: grid;
  gap: 0;
  margin-top: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download-android .usage-item {
  padding: var(--space-3);
  background: var(--color-primary-soft);
  border-bottom: var(--border-thin) solid var(--color-surface);
}

.page-app-download-android .usage-item:nth-child(2) {
  background: var(--color-surface-deep);
}

.page-app-download-android .usage-item:nth-child(3) {
  background: var(--color-highlight);
  border-bottom: 0;
}

.page-app-download-android .usage-item__label {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
}

.page-app-download-android .usage-item__value {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: 1.2;
}

/* ---------- 常见问题 ---------- */
.page-app-download-android .faq {
  margin-top: var(--space-4);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-app-download-android .faq-item {
  border-bottom: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-app-download-android .faq-item:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-app-download-android .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3) var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur-base) var(--ease-flat);
}

.page-app-download-android .faq-item__summary::-webkit-details-marker {
  display: none;
}

.page-app-download-android .faq-item__summary:hover {
  background: var(--color-primary-soft);
}

.page-app-download-android .faq-item__summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: -2px;
}

.page-app-download-android .faq-item__no {
  flex: 0 0 auto;
  width: var(--space-6);
  height: var(--space-6);
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
}

.page-app-download-android .faq-item:nth-child(even) .faq-item__no {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-app-download-android .faq-item__q {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-app-download-android .faq-item[open] .faq-item__no {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-app-download-android .faq-item__a {
  padding: 0 var(--space-3) var(--space-3) calc(var(--space-6) + var(--space-3));
}

.page-app-download-android .faq-item__a p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  border-top: var(--border-thin) dashed var(--color-line);
  padding-top: var(--space-2);
}

/* ---------- 出口 ---------- */
.page-app-download-android .android-next__inner {
  padding: var(--space-6) var(--space-3);
  border-radius: 0;
}

.page-app-download-android .android-next__eyebrow {
  color: var(--color-contrast-accent);
}

.page-app-download-android .android-next__inner h2 {
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  margin: var(--space-2) 0 var(--space-3);
}

.page-app-download-android .android-next__text {
  max-width: var(--measure);
  margin: 0;
  color: var(--color-contrast-ink);
  font-size: var(--text-base);
}

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

.page-app-download-android .android-next__meta {
  margin: var(--space-3) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
  opacity: 0.72;
  border-top: var(--border-thin) dashed var(--color-contrast-line);
  padding-top: var(--space-2);
}

.page-app-download-android .android-footnote {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) dashed var(--color-line);
}

.page-app-download-android .android-footnote__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-app-download-android .android-hero__lead h1 {
    font-size: var(--text-2xl);
  }

  .page-app-download-android .android-block__head h2 {
    font-size: var(--text-xl);
  }

  .page-app-download-android .choose-pair {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-4);
  }

  .page-app-download-android .perm-row {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: var(--space-3);
    align-items: start;
  }

  .page-app-download-android .usage-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-app-download-android .usage-item {
    border-bottom: 0;
    border-right: var(--border-thin) solid var(--color-surface);
  }

  .page-app-download-android .usage-item:last-child {
    border-right: 0;
  }

  .page-app-download-android .android-next__inner {
    padding: var(--space-8) var(--space-6);
  }
}

@media (min-width: 1024px) {
  .page-app-download-android .android-hero {
    padding-top: var(--space-4);
    padding-bottom: var(--section-y);
  }

  .page-app-download-android .android-hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download-android .android-body__grid {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download-android .android-toc {
    position: sticky;
    top: var(--space-6);
    border-right: var(--border-thin) dashed var(--color-line);
    padding-right: var(--space-3);
  }

  .page-app-download-android .android-toc .toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-app-download-android .android-block + .android-block {
    margin-top: var(--section-y-lg);
  }

  .page-app-download-android .android-figure--mid {
    margin: var(--space-3) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download-android * {
    transition: none;
  }
}
<<<END>>>