.page-privacy {
  --privacy-num-col: 42px;
  --privacy-num-gap: var(--space-2);
  --privacy-measure: 66ch;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-masthead {
  padding-block: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-privacy .privacy-version {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0 0 var(--space-3);
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface-alt);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
}

.page-privacy .privacy-title {
  margin: 0;
  font-size: clamp(var(--text-2xl), 6vw, var(--text-3xl));
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-lede {
  margin: var(--space-3) 0 0;
  max-width: var(--privacy-measure);
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-privacy .privacy-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  margin: var(--space-4) 0 0;
  padding: var(--space-3) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
  list-style: none;
}

.page-privacy .privacy-facts__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-privacy .privacy-facts__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.page-privacy .privacy-facts__label {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

/* ---------- 首屏配图 ---------- */
.page-privacy .privacy-masthead__grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-privacy .privacy-masthead__figure {
  margin: 0;
  min-width: 0;
}

.page-privacy .privacy-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 26px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

@media (min-width: 900px) {
  .page-privacy .privacy-masthead__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: center;
    margin-top: var(--space-6);
  }
}

/* ---------- 主布局 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-6) var(--space-8);
}

/* ---------- 章节目录 ---------- */
.page-privacy .privacy-rail {
  min-width: 0;
}

.page-privacy .privacy-rail__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-privacy .privacy-toc {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  padding: 0 0 var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  scrollbar-width: thin;
}

.page-privacy .privacy-toc .pg-toc__link {
  flex: 0 0 auto;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease, background-color 160ms ease;
}

.page-privacy .privacy-toc .pg-toc__link:hover,
.page-privacy .privacy-toc .pg-toc__link:focus-visible {
  color: var(--color-ink);
  background: var(--color-surface-alt);
}

.page-privacy .privacy-toc .pg-toc__link.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-privacy .privacy-totop {
  display: inline-block;
  margin-top: var(--space-3);
  padding-bottom: 2px;
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

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

/* ---------- 条款正文 ---------- */
.page-privacy .privacy-terms {
  min-width: 0;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-clause {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-privacy .privacy-clause:first-child {
  border-top: 0;
}

.page-privacy .privacy-fold {
  display: block;
}

.page-privacy .privacy-fold__summary {
  display: grid;
  grid-template-columns: var(--privacy-num-col) minmax(0, 1fr);
  gap: var(--privacy-num-gap);
  align-items: start;
  padding-block: var(--space-4);
  cursor: pointer;
  list-style: none;
}

.page-privacy .privacy-fold__summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-fold__summary::marker {
  content: "";
}

.page-privacy .privacy-fold__summary:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: var(--space-1);
}

.page-privacy .privacy-clause__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-ink-muted);
  transition: color 180ms ease;
}

.page-privacy .privacy-fold[open] .privacy-clause__num {
  color: var(--color-primary);
}

.page-privacy .privacy-clause__head {
  display: block;
  min-width: 0;
}

.page-privacy .privacy-clause__group {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-privacy .privacy-clause__title {
  margin: 0;
  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 {
  padding-block: 0 var(--space-6);
}

.page-privacy .privacy-scope {
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) dashed var(--color-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

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

.page-privacy .privacy-list > li {
  position: relative;
  padding-left: var(--space-3);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-privacy .privacy-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: var(--border-thin);
  background: var(--color-ink-muted);
}

.page-privacy .privacy-action {
  margin: var(--space-3) 0 0;
  padding: var(--space-2) var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-primary-soft);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-privacy .privacy-action__key {
  display: inline-block;
  margin-right: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.page-privacy .privacy-clause__body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 3px;
}

.page-privacy .privacy-clause__body a:hover,
.page-privacy .privacy-clause__body a:focus-visible {
  color: var(--color-ink);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-privacy {
    --privacy-num-col: 56px;
    --privacy-num-gap: var(--space-3);
  }

  .page-privacy .privacy-clause__body {
    padding-left: calc(var(--privacy-num-col) + var(--privacy-num-gap));
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: var(--space-6) var(--space-8);
    padding-block: var(--space-8);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--space-8) + var(--space-4));
    align-self: start;
  }

  .page-privacy .privacy-toc {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 var(--space-3);
    border-bottom: 0;
    border-left: var(--border-thin) solid var(--color-line);
  }

  .page-privacy .privacy-toc .pg-toc__link {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc .pg-toc__link,
  .page-privacy .privacy-clause__num,
  .page-privacy .privacy-totop {
    transition: none;
  }
}