.page-disclaimer {
  --disc-num-col: 72px;
  --disc-note-col: 288px;
  --disc-hair-on-paper: rgba(11, 18, 16, 0.16);
  --disc-hair-on-ink: rgba(233, 228, 216, 0.14);
  overflow-x: clip;
}

/* 页头 */
.page-disclaimer .page-head {
  padding: 2.25rem 0 1rem;
}

.page-disclaimer .page-head__title {
  font-family: var(--font-head);
  font-weight: 200;
  font-size: clamp(2.25rem, 8.4vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 1rem;
  max-width: 20ch;
}

/* 首图 */
.page-disclaimer .disc-hero {
  position: relative;
  aspect-ratio: 4 / 3;
  margin: 1rem 0 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-disclaimer .disc-hero .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 条款目录 */
.page-disclaimer .disc-toc-wrap {
  padding: 2.25rem 0 0;
}

.page-disclaimer .disc-toc {
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  padding: 0.75rem 0 1rem;
}

.page-disclaimer .disc-toc__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-disclaimer .disc-toc__summary::marker {
  content: "";
}

.page-disclaimer .disc-toc__label {
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .disc-toc[open] .disc-toc__label::before {
  content: "− ";
}

.page-disclaimer .disc-toc:not([open]) .disc-toc__label::before {
  content: "+ ";
}

.page-disclaimer .disc-toc__hint {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-disclaimer .disc-toc__list {
  margin-top: 0.5rem;
}

.page-disclaimer .disc-toc__list .index-list__item {
  border-bottom: 1px solid var(--disc-hair-on-ink);
}

.page-disclaimer .disc-toc__list .index-list__item:last-child {
  border-bottom: 0;
}

/* 条款主体：纸色阅读区 */
.page-disclaimer .disc-clauses {
  margin-top: 2.5rem;
  background: var(--paper);
  color: var(--ink);
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding: 2rem 0;
  border-top: 2px solid var(--disc-hair-on-paper);
}

.page-disclaimer .clause:first-of-type {
  border-top: 0;
  padding-top: 0.5rem;
}

.page-disclaimer .clause:last-of-type {
  padding-bottom: 0.5rem;
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  letter-spacing: 0.14em;
  color: var(--cyan-on-paper);
  padding-top: 0.3rem;
}

.page-disclaimer .clause__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.5rem, 5.6vw, 2.125rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 0.85rem;
  color: var(--ink);
}

.page-disclaimer .clause__body p {
  margin: 0 0 0.9rem;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-disclaimer .clause__body ul {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-disclaimer .clause__body li {
  position: relative;
  padding-left: 1.35rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-disclaimer .clause__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 2px;
  background: var(--cyan-on-paper);
}

.page-disclaimer .clause__body strong {
  font-weight: 600;
  color: var(--ink);
}

/* 旁注栏 */
.page-disclaimer .clause__note {
  border-left: 2px solid var(--red);
  padding-left: 0.9rem;
}

.page-disclaimer .disc-note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink-mute-on-paper);
}

/* 延伸入口 */
.page-disclaimer .disc-more {
  padding: 2.75rem 0 3.5rem;
}

.page-disclaimer .disc-more .eyebrow {
  margin-bottom: 1.25rem;
}

.page-disclaimer .disc-more__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-disclaimer .disc-link {
  display: block;
  padding: 1.15rem 1.15rem 1.4rem;
  background: var(--ink-3);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
  color: var(--paper);
  text-decoration: none;
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}

.page-disclaimer .disc-link:hover,
.page-disclaimer .disc-link:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .disc-link__num {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 0.7rem;
}

.page-disclaimer .disc-link h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.4375rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--paper);
}

.page-disclaimer .disc-link p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--mute);
}

/* 平板及以上：条款三段错位分栏 */
@media (min-width: 700px) {
  .page-disclaimer .page-head {
    padding: 3rem 0 1.5rem;
  }

  .page-disclaimer .disc-hero {
    aspect-ratio: 1200 / 420;
    margin-top: 1.5rem;
  }

  .page-disclaimer .disc-more__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-disclaimer .disc-toc__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2rem;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .clause {
    grid-template-columns: var(--disc-num-col) minmax(0, 1fr) var(--disc-note-col);
    column-gap: 2.5rem;
    row-gap: 0;
    padding: 2.75rem 0;
  }

  .page-disclaimer .clause__num {
    position: sticky;
    top: calc(var(--bar-h) + 32px);
    align-self: start;
  }

  .page-disclaimer .clause__note {
    padding-top: 0.35rem;
  }

  .page-disclaimer .disc-clauses {
    margin-top: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-link {
    transition: none;
  }
}