.page-disclaimer {
  --pd-ink-text: rgba(8, 21, 15, .84);
  --pd-link: #9E3A22;
  --pd-sheet-line: rgba(8, 21, 15, .22);
  padding-bottom: 72px;
}

/* 面包屑 */
.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 24px 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--fog-50);
}

.page-disclaimer .breadcrumb__link {
  color: var(--fog-70);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-disclaimer .breadcrumb__link:hover,
.page-disclaimer .breadcrumb__link:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

.page-disclaimer .breadcrumb__item {
  color: var(--fog-50);
}

.page-disclaimer .breadcrumb__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--c-graphite);
}

/* 首屏 */
.page-disclaimer .doc-hero {
  display: grid;
  gap: 36px;
  padding: 40px 0 0;
}

.page-disclaimer .doc-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-disclaimer .doc-hero h1 {
  margin: 0;
  max-width: 15em;
  font-size: clamp(29px, 7vw, 54px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-disclaimer .doc-hero__lead {
  margin: 22px 0 0;
  max-width: 35em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--fog-70);
}

.page-disclaimer .doc-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--c-charcoal);
  box-shadow: 12px 14px 0 var(--c-shadow);
}

.page-disclaimer .doc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-disclaimer .doc-hero__figure figcaption {
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  background: var(--c-ink-soft);
  font-size: 13px;
  line-height: 1.65;
  color: var(--fog-50);
}

/* 三条要点 */
.page-disclaimer .key-points {
  list-style: none;
  margin: 32px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.page-disclaimer .key-points li {
  display: flex;
  gap: 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog-70);
}

.page-disclaimer .key-points__num {
  flex: none;
  padding-top: .3em;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-orange);
}

/* 纸张叠层卡片 */
.page-disclaimer .sheet-list {
  display: grid;
  gap: 28px;
  margin-top: 64px;
}

.page-disclaimer .doc-sheet {
  position: relative;
  background: var(--c-paper);
  color: var(--c-ink);
  border: 1px solid var(--c-graphite);
  box-shadow: 9px 11px 0 var(--c-shadow);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}

.page-disclaimer .doc-sheet:hover {
  transform: translate(-2px, -2px);
  box-shadow: 12px 14px 0 var(--c-shadow);
}

.page-disclaimer .doc-sheet__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 22px 20px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--t-base) var(--ease);
}

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

.page-disclaimer .doc-sheet__summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -3px;
}

.page-disclaimer .doc-sheet__summary::after {
  content: "+";
  margin-left: auto;
  align-self: center;
  font-family: var(--f-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-orange);
}

.page-disclaimer .doc-sheet[open] .doc-sheet__summary::after {
  content: "\2013";
}

.page-disclaimer .sheet-num {
  flex: none;
  padding: 6px 8px;
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: .08em;
  background: var(--c-ink);
  color: var(--c-paper);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-disclaimer .doc-sheet__summary:hover .sheet-num,
.page-disclaimer .doc-sheet__summary:focus-visible .sheet-num {
  background: var(--c-orange);
  color: var(--c-ink);
}

.page-disclaimer .sheet-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -.01em;
}

.page-disclaimer .sheet-body {
  padding: 0 20px 26px;
  font-size: 17px;
  line-height: 1.85;
}

.page-disclaimer .sheet-body p {
  margin: 0 0 16px;
  max-width: 38em;
  color: var(--pd-ink-text);
}

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

.page-disclaimer .sheet-body a {
  color: var(--pd-link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--t-base) var(--ease), background-color var(--t-base) var(--ease);
}

.page-disclaimer .sheet-body a:hover,
.page-disclaimer .sheet-body a:focus-visible {
  color: var(--c-ink);
  background: rgba(255, 106, 43, .24);
}

.page-disclaimer .sheet-points {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  max-width: 38em;
  display: grid;
  gap: 10px;
}

.page-disclaimer .sheet-points li {
  position: relative;
  padding-left: 24px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--pd-ink-text);
}

.page-disclaimer .sheet-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 12px;
  height: 1px;
  background: var(--c-orange);
}

/* 引用写法示例 */
.page-disclaimer .cite-sample {
  margin: 0 0 20px;
  max-width: 38em;
  border: 1px solid var(--c-graphite);
  background: var(--c-ink);
}

.page-disclaimer .cite-sample__label {
  padding: 10px 14px;
  border-bottom: 1px dashed var(--line-soft);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-disclaimer .cite-sample__code {
  margin: 0;
  padding: 16px 14px;
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-fog);
  white-space: pre-wrap;
  word-break: break-word;
}

/* 底部动作 */
.page-disclaimer .doc-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

/* 桌面端 */
@media (min-width: 860px) {
  .page-disclaimer .doc-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
    padding-top: 56px;
  }

  .page-disclaimer .key-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-disclaimer .key-points li {
    flex-direction: column;
    gap: 10px;
  }

  .page-disclaimer .sheet-list {
    gap: 42px;
    margin-top: 88px;
  }

  .page-disclaimer .doc-sheet__summary {
    padding: 26px 30px;
  }

  .page-disclaimer .sheet-title {
    font-size: 22px;
  }

  .page-disclaimer .sheet-body {
    padding: 0 30px 34px;
  }

  .page-disclaimer .sheet-list > .doc-sheet:nth-child(2),
  .page-disclaimer .sheet-list > .doc-sheet:nth-child(4) {
    margin-left: 72px;
  }

  .page-disclaimer .sheet-list > .doc-sheet:nth-child(3),
  .page-disclaimer .sheet-list > .doc-sheet:nth-child(6) {
    margin-left: 36px;
  }
}

@media (min-width: 1120px) {
  .page-disclaimer .doc-hero {
    gap: 72px;
  }

  .page-disclaimer .sheet-list > .doc-sheet:nth-child(2),
  .page-disclaimer .sheet-list > .doc-sheet:nth-child(4) {
    margin-left: 112px;
  }

  .page-disclaimer .sheet-list > .doc-sheet:nth-child(3),
  .page-disclaimer .sheet-list > .doc-sheet:nth-child(6) {
    margin-left: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-sheet,
  .page-disclaimer .sheet-num,
  .page-disclaimer .breadcrumb__link,
  .page-disclaimer .sheet-body a {
    transition: none;
  }

  .page-disclaimer .doc-sheet:hover {
    transform: none;
  }
}
<<<END>>>