.page-disclaimer {
  --pd-num-col: calc(var(--space-8) + var(--space-4));
}

/* 面包屑 */
.page-disclaimer .breadcrumbs {
  margin-top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-disclaimer .breadcrumbs a {
  color: var(--color-ink-muted);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.page-disclaimer .breadcrumbs a:hover,
.page-disclaimer .breadcrumbs a:focus-visible {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

/* 首屏说明区 */
.page-disclaimer .page-disclaimer__intro {
  display: grid;
  gap: var(--space-3);
  max-width: var(--measure);
  padding: var(--space-8) 0 var(--space-6);
}

.page-disclaimer .page-disclaimer__intro .page-title {
  margin: 0;
}

.page-disclaimer .page-disclaimer__intro .lede {
  margin: 0;
}

/* 顶部条带图 */
.page-disclaimer .page-disclaimer__banner {
  margin: 0;
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-disclaimer .page-disclaimer__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: center;
  filter: grayscale(1) contrast(0.88) brightness(1.05);
}

/* 章节目录 */
.page-disclaimer .page-disclaimer__toc {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-8) 0 var(--space-6);
}

.page-disclaimer .page-disclaimer__toc-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-disclaimer .page-disclaimer__toc-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

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

.page-disclaimer .page-disclaimer__toc-group li {
  margin: 0;
}

.page-disclaimer .page-disclaimer__toc-group a {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: 1.4;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.page-disclaimer .page-disclaimer__toc-group a:hover,
.page-disclaimer .page-disclaimer__toc-group a:focus-visible {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

.page-disclaimer .page-disclaimer__toc-group a.is-current {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

.page-disclaimer .page-disclaimer__toc-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* 条款主体 */
.page-disclaimer .page-disclaimer__clauses {
  padding-bottom: var(--space-8);
}

.page-disclaimer .page-disclaimer__clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-6) 0;
}

.page-disclaimer .page-disclaimer__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-disclaimer .page-disclaimer__clause-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-disclaimer .page-disclaimer__clause-body {
  display: grid;
  gap: var(--space-3);
  max-width: var(--measure);
}

.page-disclaimer .page-disclaimer__clause-body > p,
.page-disclaimer .page-disclaimer__clause-body > ol,
.page-disclaimer .page-disclaimer__clause-body > dl,
.page-disclaimer .page-disclaimer__clause-body > details {
  margin: 0;
}

/* 重点句 */
.page-disclaimer .page-disclaimer__keyline {
  padding: var(--space-3);
  background: var(--color-highlight);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: calc(var(--text-xl) * 0.76);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

/* 三步处理 */
.page-disclaimer .page-disclaimer__steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  counter-reset: pd-step;
}

.page-disclaimer .page-disclaimer__steps > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-3);
  counter-increment: pd-step;
}

.page-disclaimer .page-disclaimer__steps > li::before {
  grid-column: 1;
  grid-row: 1 / span 2;
  content: counter(pd-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-disclaimer .page-disclaimer__steps > li h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  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-disclaimer .page-disclaimer__steps > li p {
  grid-column: 2;
  grid-row: 2;
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* 展开细读 */
.page-disclaimer .page-disclaimer__more > summary {
  display: inline-block;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: text-decoration-color 160ms ease;
}

.page-disclaimer .page-disclaimer__more > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .page-disclaimer__more > summary::marker {
  content: "";
}

.page-disclaimer .page-disclaimer__more > summary:hover,
.page-disclaimer .page-disclaimer__more > summary:focus-visible {
  text-decoration-color: currentColor;
}

.page-disclaimer .page-disclaimer__more[open] > summary {
  margin-bottom: var(--space-2);
}

.page-disclaimer .page-disclaimer__more > p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* 联系方式清单 */
.page-disclaimer .page-disclaimer__contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-disclaimer .page-disclaimer__contact dt {
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-disclaimer .page-disclaimer__contact dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

/* 反色收束区 */
.page-disclaimer .page-disclaimer__outro-lead {
  margin: var(--space-3) 0 var(--space-6);
  max-width: 44ch;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-disclaimer .page-disclaimer__outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: 0;
}

.page-disclaimer .page-disclaimer__outro .cta {
  color: var(--color-contrast-accent);
}

/* 焦点可见 */
.page-disclaimer a:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* 中等及以上屏幕 */
@media (min-width: 620px) {
  .page-disclaimer .page-disclaimer__toc-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--space-3);
  }

  .page-disclaimer .page-disclaimer__contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--space-3);
  }

  .page-disclaimer .page-disclaimer__banner img {
    aspect-ratio: 8 / 3;
  }
}

@media (min-width: 720px) {
  .page-disclaimer .page-disclaimer__keyline {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-xl);
  }

  .page-disclaimer .page-disclaimer__clause {
    grid-template-columns: var(--pd-num-col) minmax(0, 1fr);
    column-gap: var(--space-4);
    row-gap: var(--space-3);
  }

  .page-disclaimer .page-disclaimer__num {
    grid-area: 1 / 1 / 2 / 2;
    padding-top: calc(var(--space-1) * 1.5);
  }

  .page-disclaimer .page-disclaimer__clause-title {
    grid-area: 1 / 2 / 2 / 3;
  }

  .page-disclaimer .page-disclaimer__clause-body {
    grid-area: 2 / 2 / 3 / 3;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .page-disclaimer__toc-groups {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .breadcrumbs a,
  .page-disclaimer .page-disclaimer__toc-group a,
  .page-disclaimer .page-disclaimer__more > summary {
    transition: none;
  }
}