.page-privacy {
  --privacy-band-h: clamp(230px, 33vw, 348px);
}

/* 面包屑下的窄幅纸面带 */
.page-privacy .privacy-lead {
  margin-top: var(--space-3);
}

.page-privacy .privacy-band {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: var(--privacy-band-h);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-contrast-surface);
  box-shadow: var(--shadow-2);
}

.page-privacy .privacy-band__media {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-privacy .privacy-band__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-privacy .privacy-band__copy {
  position: relative;
  z-index: 1;
  max-width: 64ch;
  padding: var(--space-4) var(--space-3);
  color: var(--color-contrast-ink);
}

.page-privacy .privacy-band__copy .sticker {
  display: inline-block;
  margin-bottom: var(--space-1);
}

.page-privacy .privacy-band__title {
  margin: 0 0 var(--space-2);
  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-contrast-ink);
}

.page-privacy .privacy-band__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

/* 左侧索引轨 + 中央条款册 + 右侧入口卡 */
.page-privacy .privacy-grid {
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--section-y);
  align-items: start;
}

.page-privacy .privacy-rail {
  min-width: 0;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-privacy .privacy-rail__title {
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: 5px var(--space-1);
  border-bottom: var(--border-thick) solid transparent;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: background-color 0.2s ease-out, color 0.2s ease-out, border-color 0.2s ease-out;
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  background: var(--color-primary-soft);
  color: var(--color-ink);
  border-bottom-color: var(--color-primary);
}

.page-privacy .privacy-rail__num {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-privacy .privacy-rail__label {
  min-width: 0;
}

.page-privacy .privacy-rail__meta {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dashed var(--color-line);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-privacy .privacy-body {
  min-width: 0;
}

/* 分组标题 */
.page-privacy .privacy-group + .privacy-group {
  margin-top: var(--space-6);
}

.page-privacy .privacy-group__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-group__title::before {
  content: "";
  flex: none;
  width: 28px;
  height: 3px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
}

/* 条款纸片 */
.page-privacy .privacy-clause {
  position: relative;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  scroll-margin-top: 112px;
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}

.page-privacy .privacy-clause + .privacy-clause {
  margin-top: var(--space-3);
}

.page-privacy .privacy-clause:hover,
.page-privacy .privacy-clause:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-privacy .privacy-clause__head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-privacy .privacy-clause__num {
  flex: none;
  padding: 2px 7px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--color-ink);
}

.page-privacy .privacy-clause__titles {
  min-width: 0;
}

.page-privacy .privacy-clause__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-clause__body {
  margin-top: var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-privacy .privacy-clause__body p {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

.page-privacy .privacy-clause__body p:last-child {
  margin-bottom: 0;
}

.page-privacy .privacy-clause__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: var(--border-thin) dashed var(--color-line);
}

/* 每节右下角的动作反色块 */
.page-privacy .privacy-action {
  max-width: 46ch;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-privacy .privacy-action__label {
  margin: 0 0 2px;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-privacy .privacy-action__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-contrast-ink);
}

.page-privacy .privacy-action__text a {
  color: var(--color-contrast-ink);
  text-decoration-color: var(--color-contrast-accent);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-privacy .privacy-action__text a:hover,
.page-privacy .privacy-action__text a:focus-visible {
  color: var(--color-contrast-accent);
}

.page-privacy .privacy-copy {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* 悬停展开的适用范围旁注 */
.page-privacy .privacy-marginalia {
  position: relative;
  margin-top: 6px;
}

.page-privacy .privacy-marginalia .marginalia__trigger {
  appearance: none;
  padding: 0 0 1px;
  border: none;
  border-bottom: var(--border-thin) solid currentColor;
  background: none;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  cursor: help;
}

.page-privacy .privacy-marginalia .marginalia__trigger:hover,
.page-privacy .privacy-marginalia .marginalia__trigger:focus-visible {
  color: var(--color-accent);
}

.page-privacy .privacy-marginalia .marginalia__body {
  position: absolute;
  top: calc(100% + var(--space-1));
  left: 0;
  z-index: 20;
  width: min(320px, 74vw);
  margin: 0;
  padding: var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-highlight);
  color: var(--color-ink);
  font-size: var(--text-sm);
  line-height: 1.68;
  box-shadow: var(--shadow-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.18s ease-out, transform 0.18s ease-out, visibility 0.18s ease-out;
}

.page-privacy .privacy-marginalia:hover .marginalia__body,
.page-privacy .privacy-marginalia:focus-within .marginalia__body {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 右侧入口卡 */
.page-privacy .privacy-aside {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
}

.page-privacy .privacy-card {
  position: relative;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-privacy .privacy-card--note {
  background: var(--color-surface-deep);
}

.page-privacy .privacy-card__title {
  margin: 0 0 var(--space-2);
  padding-right: var(--space-8);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-card p {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.72;
  color: var(--color-ink-soft);
}

.page-privacy .privacy-card p:last-of-type {
  margin-bottom: 0;
}

.page-privacy .privacy-card__actions {
  margin-top: var(--space-2);
  gap: var(--space-1);
}

/* 键盘焦点 */
.page-privacy a:focus-visible,
.page-privacy button:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* 断点：两栏 */
@media (min-width: 880px) {
  .page-privacy .privacy-grid {
    grid-template-columns: minmax(190px, 0.74fr) minmax(0, 2.4fr);
    gap: var(--space-4) var(--space-4);
  }

  .page-privacy .privacy-aside {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-privacy .privacy-rail__link {
    border-bottom: none;
    border-left: var(--border-thick) solid transparent;
    padding-left: var(--space-2);
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    border-left-color: var(--color-primary);
  }
}

/* 断点：三栏 + 索引轨吸附 */
@media (min-width: 1120px) {
  .page-privacy .privacy-grid {
    grid-template-columns: minmax(190px, 0.8fr) minmax(0, 2.5fr) minmax(230px, 0.94fr);
    gap: var(--space-6) var(--space-4);
  }

  .page-privacy .privacy-aside {
    grid-column: auto;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: 96px;
  }

  .page-privacy .privacy-aside {
    position: sticky;
    top: 96px;
  }
}

/* 窄屏收束 */
@media (max-width: 620px) {
  .page-privacy .privacy-clause__foot {
    flex-direction: column;
    align-items: stretch;
  }

  .page-privacy .privacy-action {
    max-width: none;
  }

  .page-privacy .privacy-copy {
    align-self: flex-start;
  }

  .page-privacy .privacy-rail__list {
    gap: var(--space-1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-clause,
  .page-privacy .privacy-rail__link,
  .page-privacy .privacy-marginalia .marginalia__body {
    transition: none;
  }

  .page-privacy .privacy-clause:hover,
  .page-privacy .privacy-clause:focus-within {
    transform: none;
  }

  .page-privacy .privacy-marginalia .marginalia__body {
    transform: none;
  }
}