.page-app-download-ios {
  --ios-block: var(--border-thick) solid var(--color-contrast-surface);
  --ios-rule: 2px solid var(--color-line);
}

.page-app-download-ios .section {
  padding: var(--section-y) 0;
}

/* ---------- 上下文与面包屑 ---------- */
.page-app-download-ios .ios-ctx {
  padding-top: var(--space-4);
  padding-bottom: var(--space-2);
}

.page-app-download-ios .ios-ctx__note {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  border-left: var(--border-thick) solid var(--color-primary);
  padding-left: var(--space-2);
}

/* ---------- 首屏 ---------- */
.page-app-download-ios .ios-intro__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: minmax(0, 1fr);
}

.page-app-download-ios .ios-title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 20ch;
}

.page-app-download-ios .ios-intro__text .lede {
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink);
  max-width: var(--measure);
}

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

.page-app-download-ios .ios-intro__text .prose:last-child {
  margin-bottom: 0;
}

/* ---------- 图片展签容器（页内统一） ---------- */
.page-app-download-ios .figure-frame {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  border: var(--ios-block);
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
}

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

.page-app-download-ios .figure-frame__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.page-app-download-ios .figure-frame__label {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  display: inline-block;
  padding: 4px var(--space-1);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
}

.page-app-download-ios .figure-frame__caption {
  position: absolute;
  right: var(--space-2);
  bottom: var(--space-2);
  max-width: 24ch;
  margin: 0;
  text-align: right;
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-contrast-ink);
}

.page-app-download-ios .ios-intro__figure {
  align-self: start;
}

/* ---------- 数字带 ---------- */
.page-app-download-ios .ios-strip {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thick) solid var(--color-primary);
  border-bottom: var(--border-thick) solid var(--color-primary);
  padding: var(--space-4) 0;
}

.page-app-download-ios .ios-strip__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-3);
}

.page-app-download-ios .ios-strip__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-contrast-line);
}

.page-app-download-ios .ios-strip__value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-ink);
}

.page-app-download-ios .ios-strip__unit {
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

.page-app-download-ios .ios-strip__label {
  flex: 1 0 100%;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

/* ---------- 区块小标题 ---------- */
.page-app-download-ios .ios-shead {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thick) solid var(--color-primary);
}

.page-app-download-ios .ios-shead__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  padding: 4px var(--space-1);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  border-radius: var(--radius-sm);
}

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

.page-app-download-ios .ios-shead__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-app-download-ios .ios-shead--light {
  border-bottom-color: var(--color-contrast-accent);
}

.page-app-download-ios .ios-shead--light .ios-shead__idx {
  background: var(--color-contrast-accent);
  color: var(--color-contrast-surface);
}

.page-app-download-ios .ios-shead--light .ios-shead__title {
  color: var(--color-contrast-ink);
}

.page-app-download-ios .ios-shead--light .ios-shead__note {
  color: var(--color-contrast-ink);
  opacity: 0.74;
}

/* ---------- 01 条件清单 ---------- */
.page-app-download-ios .ios-env__tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.page-app-download-ios .chip {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.2;
  padding: 8px var(--space-2);
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-contrast-surface);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.page-app-download-ios .chip[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-app-download-ios .chip:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.page-app-download-ios .ios-env__group {
  margin-bottom: var(--space-6);
}

.page-app-download-ios .ios-env__group:last-child {
  margin-bottom: 0;
}

.page-app-download-ios .ios-env__gtitle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-app-download-ios .ios-env__gmark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--color-surface-deep);
  border: 2px solid var(--color-contrast-surface);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-ink);
}

.page-app-download-ios .ios-spec {
  margin: 0;
  border-top: var(--ios-rule);
}

.page-app-download-ios .ios-spec__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-2) var(--space-1);
  border-bottom: var(--ios-rule);
  transition: opacity 200ms ease-out;
}

.page-app-download-ios .ios-spec__row.is-folded {
  opacity: 0.4;
}

.page-app-download-ios .ios-spec__key {
  font-size: var(--text-sm);
  letter-spacing: 0.03em;
  color: var(--color-ink-soft);
}

.page-app-download-ios .ios-spec__val {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-app-download-ios .ios-spec__val .mono {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  letter-spacing: 0.01em;
}

/* ---------- 02 同步范围 ---------- */
.page-app-download-ios .ios-sync__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.page-app-download-ios .ios-sync__media {
  max-width: 340px;
  border-color: var(--color-contrast-line);
}

.page-app-download-ios .ios-sync__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: var(--border-thick) solid var(--color-contrast-accent);
}

.page-app-download-ios .ios-sync__table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
}

.page-app-download-ios .ios-sync__table caption {
  caption-side: top;
  text-align: left;
  padding: var(--space-2) 0;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

.page-app-download-ios .ios-sync__table th,
.page-app-download-ios .ios-sync__table td {
  padding: var(--space-2);
  text-align: left;
  vertical-align: top;
  border-bottom: 2px solid var(--color-contrast-line);
}

.page-app-download-ios .ios-sync__table thead th {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  letter-spacing: 0.1em;
  color: var(--color-contrast-accent);
  white-space: nowrap;
  border-bottom: var(--border-thick) solid var(--color-contrast-accent);
}

.page-app-download-ios .ios-sync__table tbody th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-app-download-ios .ios-sync__table tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
}

.page-app-download-ios .ios-sync__ok {
  display: table-cell;
  white-space: nowrap;
  color: var(--color-contrast-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

.page-app-download-ios .ios-sync__ok::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 5px;
  margin-right: 6px;
  border-left: 2px solid var(--color-contrast-accent);
  border-bottom: 2px solid var(--color-contrast-accent);
  transform: rotate(-45deg) translateY(-2px);
}

.page-app-download-ios .ios-sync__foot {
  margin: var(--space-6) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-contrast-ink);
  opacity: 0.82;
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-contrast-line);
}

.page-app-download-ios .ios-sync__foot .mono {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

/* ---------- 03 季票查阅 ---------- */
.page-app-download-ios .ios-ticket__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.page-app-download-ios .ios-track {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-app-download-ios .ios-track__step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: var(--space-3);
  padding-bottom: var(--space-4);
}

.page-app-download-ios .ios-track__step::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 36px;
  bottom: 0;
  width: 2px;
  background: var(--color-line);
}

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

.page-app-download-ios .ios-track__step:last-child::before {
  display: none;
}

.page-app-download-ios .ios-track__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 32px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  border-radius: var(--radius-sm);
}

.page-app-download-ios .ios-track__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-app-download-ios .ios-track__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-app-download-ios .ios-track__text .mono {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
}

.page-app-download-ios .ios-ticket__figure {
  align-self: start;
}

/* ---------- 04 相邻主题 ---------- */
.page-app-download-ios .ios-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}

.page-app-download-ios .ios-next__item {
  margin: 0;
}

.page-app-download-ios .ios-next__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-1) var(--space-3);
  align-items: baseline;
  height: 100%;
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-contrast-surface);
  border-left: 6px solid var(--color-primary);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-ink);
  transition: background-color 160ms ease-out, border-color 160ms ease-out;
}

.page-app-download-ios .ios-next__link:hover {
  background: var(--color-primary-soft);
  border-left-color: var(--color-accent);
}

.page-app-download-ios .ios-next__link:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.page-app-download-ios .ios-next__idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
}

.page-app-download-ios .ios-next__label {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.3;
}

.page-app-download-ios .ios-next__desc {
  grid-column: 1 / -1;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-app-download-ios .ios-spec__row {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-3);
    align-items: baseline;
  }

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

@media (min-width: 860px) {
  .page-app-download-ios .ios-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download-ios .ios-ticket__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
  }

  .page-app-download-ios .ios-shead__title {
    font-size: var(--text-2xl);
  }
}

@media (min-width: 900px) {
  .page-app-download-ios .ios-sync__layout {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  .page-app-download-ios .ios-title {
    font-size: var(--text-2xl);
  }

  .page-app-download-ios .ios-shead {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-app-download-ios .ios-shead__idx {
    justify-self: start;
  }

  .page-app-download-ios .ios-track__step {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: var(--space-2);
  }

  .page-app-download-ios .ios-track__step::before {
    left: 21px;
  }

  .page-app-download-ios .ios-track__num {
    width: 44px;
    height: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download-ios .chip,
  .page-app-download-ios .ios-next__link,
  .page-app-download-ios .ios-spec__row {
    transition: none;
  }
}