.page-privacy {
  --privacy-index-w: 190px;
  --privacy-dot: 6px;
  overflow-x: clip;
}

/* 首屏：窄幅云层纹理通栏 + 标题区 */
.page-privacy .privacy-hero__band {
  position: relative;
  height: 148px;
  overflow: hidden;
  background-color: var(--color-surface-deep);
}

.page-privacy .privacy-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
}

.page-privacy .privacy-hero__text {
  padding-top: var(--space-6);
  padding-bottom: var(--space-2);
}

.page-privacy .privacy-hero__title {
  margin: var(--space-2) 0 0;
  max-width: 18ch;
  font-size: 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-hero__lead {
  margin: var(--space-3) 0 0;
  max-width: 60ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* 索引 + 正文双栏 */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-privacy .privacy-index__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-privacy .privacy-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2) var(--space-4);
}

.page-privacy .privacy-index__list a {
  position: relative;
  display: inline-block;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-privacy .privacy-index__list a:hover,
.page-privacy .privacy-index__list a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: currentColor;
}

/* 条款正文 */
.page-privacy .privacy-body {
  min-width: 0;
}

.page-privacy .privacy-block {
  scroll-margin-top: var(--space-8);
}

.page-privacy .privacy-block + .privacy-block {
  margin-top: var(--space-8);
}

.page-privacy .privacy-block__tag {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-privacy .privacy-block__title {
  margin: 0;
  max-width: 26ch;
  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-privacy .privacy-block__text {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

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

.page-privacy .privacy-block__text a:hover {
  text-decoration-thickness: 2px;
}

/* 三条原则 */
.page-privacy .privacy-rules {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-privacy .privacy-rules > li {
  position: relative;
  padding-left: var(--space-4);
}

.page-privacy .privacy-rules > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: var(--space-2);
  height: 2px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
}

.page-privacy .privacy-rules h3 {
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-rules p {
  margin: var(--space-1) 0 0;
  max-width: 60ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

/* 浏览与联系场景的行式列表 */
.page-privacy .privacy-items {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-items > li {
  padding: var(--space-3) 0;
}

.page-privacy .privacy-items > li + li {
  border-top: 1px solid var(--color-line);
}

.page-privacy .privacy-items strong {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-items span {
  display: block;
  margin-top: var(--space-1);
  max-width: 62ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

/* 折叠区 */
.page-privacy .privacy-folds {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.page-privacy .privacy-fold {
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-privacy .privacy-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
}

.page-privacy .privacy-fold > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-fold > summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.page-privacy .privacy-fold[open] > summary::after {
  transform: rotate(-135deg);
}

.page-privacy .privacy-fold > summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: -3px;
}

.page-privacy .privacy-fold .fold__body {
  padding: 0 var(--space-4) var(--space-4);
  animation: privacy-fold-in 180ms ease both;
}

@keyframes privacy-fold-in {
  from {
    opacity: 0;
    transform: translateY(-3px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

.page-privacy .privacy-ticks li {
  position: relative;
  padding-left: var(--space-3);
  max-width: 62ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-privacy .privacy-ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: var(--privacy-dot);
  height: var(--privacy-dot);
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
}

/* 你可以做的四件事：细线节点式 */
.page-privacy .privacy-actions {
  position: relative;
  margin: var(--space-4) 0 0;
  padding: 0 0 0 var(--space-4);
  list-style: none;
  display: grid;
  gap: var(--space-4);
}

.page-privacy .privacy-actions::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.7em;
  bottom: 0.7em;
  width: 1px;
  background-color: var(--color-line);
}

.page-privacy .privacy-actions > li {
  position: relative;
}

.page-privacy .privacy-actions > li::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-4) + 3px);
  top: 0.68em;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-surface);
}

.page-privacy .privacy-actions h3 {
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-privacy .privacy-actions p {
  margin: var(--space-1) 0 0;
  max-width: 62ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

/* 页尾深色出口 */
.page-privacy .privacy-outro {
  margin-top: var(--space-8);
  padding: var(--space-6) 0 var(--space-8);
  background-color: var(--color-contrast-surface);
}

.page-privacy .privacy-outro__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
}

.page-privacy .privacy-outro__text {
  margin: var(--space-2) 0 0;
  max-width: 44ch;
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-privacy .privacy-outro__actions {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.page-privacy .privacy-outro__link {
  font-size: var(--text-base);
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.page-privacy .privacy-outro__link:hover {
  text-decoration-thickness: 2px;
}

@media (min-width: 720px) {
  .page-privacy .privacy-hero__band {
    height: 236px;
  }

  .page-privacy .privacy-hero__title {
    font-size: var(--text-4xl);
  }

  .page-privacy .privacy-rules {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-privacy .privacy-items > li {
    display: grid;
    grid-template-columns: 176px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-privacy .privacy-items span {
    margin-top: 0;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-index-w) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: var(--space-8);
  }

  .page-privacy .privacy-index__list {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2);
    padding-left: var(--space-3);
    border-left: 1px solid var(--color-line);
  }

  .page-privacy .privacy-index__list a::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--space-3) - 3px);
    top: 0.6em;
    width: var(--privacy-dot);
    height: var(--privacy-dot);
    border-radius: var(--radius-pill);
    background-color: var(--color-line);
    transition: background-color 180ms ease;
  }

  .page-privacy .privacy-index__list a:hover::before,
  .page-privacy .privacy-index__list a:focus-visible::before {
    background-color: var(--color-accent);
  }

  .page-privacy .privacy-block + .privacy-block {
    margin-top: var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-fold .fold__body {
    animation: none;
  }

  .page-privacy .privacy-fold > summary::after,
  .page-privacy .privacy-index__list a,
  .page-privacy .privacy-index__list a::before {
    transition: none;
  }
}