.page-disclaimer {
  --disclaimer-clause-line: var(--color-line);
  padding-bottom: var(--section-y);
}

.page-disclaimer .breadcrumb {
  padding-top: var(--space-3);
}

/* ---------- 页首 ---------- */
.page-disclaimer .terms-masthead {
  padding-top: var(--space-8);
  text-align: center;
}

.page-disclaimer .terms-masthead__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-disclaimer .terms-masthead__lede {
  max-width: var(--measure);
  margin: 0 auto;
  color: var(--color-ink-soft);
  text-align: left;
}

.page-disclaimer .terms-masthead__lede a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .terms-masthead__lede a:hover,
.page-disclaimer .terms-masthead__lede a:focus-visible {
  color: var(--color-primary);
}

.page-disclaimer .terms-masthead .rule-double {
  display: block;
  width: 100%;
  margin: var(--space-4) auto;
}

.page-disclaimer .terms-masthead__figure {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}

.page-disclaimer .terms-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节目录 ---------- */
.page-disclaimer .terms-toc {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-disclaimer .terms-toc__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.page-disclaimer .terms-toc__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .terms-toc__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-1) var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 190ms ease-out, color 190ms ease-out;
}

.page-disclaimer .terms-toc__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: var(--border-thin);
  background: var(--color-primary);
  transition: width 190ms ease-out;
}

.page-disclaimer .terms-toc__link:hover::before,
.page-disclaimer .terms-toc__link:focus-visible::before {
  width: var(--space-3);
}

.page-disclaimer .terms-toc__link:hover,
.page-disclaimer .terms-toc__link:focus-visible {
  background-color: var(--color-primary-soft);
}

.page-disclaimer .terms-toc__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

/* ---------- 章节折叠 ---------- */
.page-disclaimer .terms-clauses {
  display: block;
}

.page-disclaimer .clause {
  position: relative;
  padding-top: var(--space-4);
  margin-bottom: var(--space-6);
  scroll-margin-top: var(--space-8);
}

.page-disclaimer .clause::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  border-top: var(--border-thin) solid var(--disclaimer-clause-line);
  border-bottom: var(--border-thin) solid var(--disclaimer-clause-line);
}

.page-disclaimer .clause[open]::before {
  border-top-color: var(--color-primary);
  border-top-width: var(--border-thick);
}

.page-disclaimer .clause__summary {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  cursor: pointer;
  list-style: none;
  transition: color 190ms ease-out;
}

.page-disclaimer .clause__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause__summary::marker {
  content: "";
}

.page-disclaimer .clause__summary:hover .clause__title {
  color: var(--color-primary);
}

.page-disclaimer .clause__no {
  flex: 0 0 auto;
  min-width: var(--space-4);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-disclaimer .clause__title {
  flex: 1 1 auto;
  margin: 0;
  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);
  transition: color 190ms ease-out;
}

.page-disclaimer .clause__toggle {
  position: relative;
  flex: 0 0 auto;
  width: var(--space-3);
  height: var(--space-3);
}

.page-disclaimer .clause__toggle::before,
.page-disclaimer .clause__toggle::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
}

.page-disclaimer .clause__toggle::before {
  left: 0;
  right: 0;
  top: 50%;
  height: var(--border-thin);
  transform: translateY(-50%);
}

.page-disclaimer .clause__toggle::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: var(--border-thin);
  transform: translateX(-50%);
  transition: opacity 190ms ease-out;
}

.page-disclaimer .clause[open] .clause__toggle::after {
  opacity: 0;
}

.page-disclaimer .clause__body {
  padding: var(--space-1) 0 var(--space-4);
}

.page-disclaimer .clause__body .prose + .prose {
  margin-top: var(--space-3);
}

.page-disclaimer .clause__body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 引用示例 ---------- */
.page-disclaimer .cite-sample {
  margin: var(--space-3) 0;
  padding: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
  background: var(--color-highlight);
}

.page-disclaimer .cite-sample__line {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-disclaimer .cite-sample__line + .cite-sample__line {
  margin-top: var(--space-1);
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-surface-deep);
}

.page-disclaimer .cite-copy {
  display: inline-flex;
  align-items: center;
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink);
  background: transparent;
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 190ms ease-out, color 190ms ease-out, border-color 190ms ease-out;
}

.page-disclaimer .cite-copy:hover {
  background: var(--color-contrast-surface);
  border-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-disclaimer .cite-copy[data-copied] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* ---------- 禁止行为清单 ---------- */
.page-disclaimer .ban-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .ban-list__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-disclaimer .ban-list__mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-contrast-accent);
}

/* ---------- 焦点统一 ---------- */
.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .terms-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
  }

  .page-disclaimer .ban-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .clause__no {
    min-width: var(--space-6);
  }
}

@media (min-width: 960px) {
  .page-disclaimer .terms-masthead {
    padding-top: var(--section-y);
  }

  .page-disclaimer .terms-masthead__title {
    font-size: var(--text-4xl);
  }

  .page-disclaimer .clause__title {
    font-size: var(--text-2xl);
  }

  .page-disclaimer .clause__body {
    padding-left: var(--space-6);
  }

  .page-disclaimer .cite-sample {
    padding: var(--space-3) var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .terms-toc__link,
  .page-disclaimer .terms-toc__link::before,
  .page-disclaimer .clause__toggle::after,
  .page-disclaimer .clause__title,
  .page-disclaimer .cite-copy {
    transition: none;
  }
}