.page-app-download {
  --app-glass: color-mix(in srgb, var(--color-surface) 58%, transparent);
  --app-glass-soft: color-mix(in srgb, var(--color-surface) 34%, transparent);
  --app-hair: color-mix(in srgb, var(--color-ink) 14%, transparent);
  --app-hair-light: color-mix(in srgb, var(--color-surface) 26%, transparent);
}

/* ---------- 首屏 ---------- */
.page-app-download .ad-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-6) 0 var(--section-y);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.page-app-download .ad-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-app-download .ad-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: grayscale(1);
}

.page-app-download .ad-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-app-download .ad-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(58% 46% at 84% 10%, color-mix(in srgb, var(--color-accent) 40%, transparent) 0%, transparent 68%),
    radial-gradient(54% 46% at 6% 90%, color-mix(in srgb, var(--color-primary) 44%, transparent) 0%, transparent 70%);
}

.page-app-download .ad-hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-app-download .ad-crumb {
  order: -1;
  color: var(--color-ink-muted);
}

.page-app-download .ad-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
}

.page-app-download .ad-crumb a {
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--app-hair-light);
}

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

.page-app-download .ad-crumb li[aria-current="page"] {
  color: var(--color-contrast-accent);
}

.page-app-download .ad-hero__eyebrow {
  color: var(--color-contrast-accent);
  margin: 0;
}

.page-app-download .ad-hero__title {
  margin: 0;
  max-width: 13ch;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .ad-hero__lede {
  margin: 0;
  max-width: var(--measure);
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

.page-app-download .ad-hero__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.page-app-download .ad-caps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}

.page-app-download .ad-cap {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--app-hair-light);
  background: var(--app-glass-soft);
  backdrop-filter: blur(10px);
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.page-app-download .ad-cap:hover {
  border-color: color-mix(in srgb, var(--color-contrast-accent) 62%, transparent);
  background: color-mix(in srgb, var(--color-surface) 16%, transparent);
  transform: translateY(-2px);
}

.page-app-download .ad-cap__k {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-app-download .ad-cap__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .ad-cap__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-app-download .ad-hero__stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .ad-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0;
}

.page-app-download .ad-stat__num {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-app-download .ad-stat__label {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* ---------- 三段式 ---------- */
.page-app-download .ad-tabs {
  margin-top: var(--space-4);
}

.page-app-download .ad-triple {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-app-download [data-switcher-panel][hidden] {
  display: none;
}

.page-app-download .ad-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-6);
  background: var(--app-glass);
  border: var(--border-thin) solid var(--app-hair);
  border-radius: var(--radius-md);
  transition: border-color 180ms ease, transform 180ms ease;
}

.page-app-download .ad-card::before {
  content: "";
  position: absolute;
  left: var(--space-3);
  top: var(--space-3);
  bottom: var(--space-3);
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.page-app-download .ad-panel-group--fix .ad-card::before {
  background: var(--color-primary);
}

.page-app-download .ad-panel-group--gain .ad-card::before {
  background: var(--color-accent);
}

.page-app-download .ad-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 34%, transparent);
  transform: translateY(-2px);
}

.page-app-download .ad-card__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

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

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

/* ---------- 版本差异 ---------- */
.page-app-download .ad-version__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-app-download .ad-version__figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--border-thin) solid var(--app-hair);
}

.page-app-download .ad-version__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-app-download .ad-version__body h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-app-download .ad-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--app-hair);
  background: var(--app-glass);
}

.page-app-download .ad-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-app-download .ad-table__caption {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .ad-table th,
.page-app-download .ad-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: top;
  line-height: var(--leading-body);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .ad-table thead th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: color-mix(in srgb, var(--color-primary-soft) 55%, transparent);
}

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

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

.page-app-download .ad-table tbody tr:hover td,
.page-app-download .ad-table tbody tr:hover th {
  background: color-mix(in srgb, var(--color-highlight) 55%, transparent);
}

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

/* ---------- 安装准备 ---------- */
.page-app-download .ad-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

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

.page-app-download .ad-prep__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--app-hair);
  background: var(--app-glass);
}

.page-app-download .ad-prep__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--space-6);
  height: var(--space-6);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent-ink);
  background: var(--color-accent);
}

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

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

.page-app-download .ad-prep__figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--border-thin) solid var(--app-hair);
  background: var(--color-surface-alt);
}

.page-app-download .ad-prep__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

/* ---------- 行动出口 ---------- */
.page-app-download .ad-exit__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-3);
  border-radius: var(--radius-lg);
  color: var(--color-contrast-ink);
}

.page-app-download .ad-exit__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-app-download .ad-exit__eyebrow {
  margin: 0;
  color: var(--color-contrast-accent);
}

.page-app-download .ad-exit__head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .ad-exit__lede {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-app-download .ad-exit__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-app-download .ad-exit__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-surface) 8%, transparent);
  text-decoration: none;
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.page-app-download .ad-exit__link:hover,
.page-app-download .ad-exit__link:focus-visible {
  border-color: var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-surface) 14%, transparent);
  transform: translateY(-2px);
}

.page-app-download .ad-exit__link-t {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .ad-exit__link-d {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-app-download .ad-exit__foot {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .ad-exit__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-app-download .ad-exit__note a {
  color: var(--color-contrast-accent);
}

.page-app-download .ad-exit__figure {
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-app-download .ad-caps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-app-download .ad-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-app-download .ad-exit__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-app-download .ad-hero {
    padding-top: var(--space-8);
    padding-bottom: var(--section-y-lg);
  }

  .page-app-download .ad-hero__stats {
    width: 68%;
    margin-left: auto;
  }

  .page-app-download .ad-triple {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: var(--space-4);
  }

  .page-app-download .ad-triple > *:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-app-download .ad-triple > *:nth-child(3) {
    margin-top: var(--space-2);
  }

  .page-app-download .ad-prep__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-app-download .ad-version__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

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

  .page-app-download .ad-exit__foot {
    flex-direction: row;
    align-items: center;
  }

  .page-app-download .ad-exit__foot .ad-exit__figure {
    flex: 0 0 42%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download .ad-cap,
  .page-app-download .ad-card,
  .page-app-download .ad-exit__link {
    transition: none;
    transform: none;
  }
}