.page-disclaimer {
  --doc-gap: 32px;
  --doc-aside-w: 240px;
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-disclaimer .breadcrumb {
  margin-top: 24px;
}

/* ---------- 页面标题区 ---------- */
.page-disclaimer .doc-head {
  margin: 28px 0 40px;
  max-width: 46em;
}

.page-disclaimer .doc-head__version {
  margin: 0 0 18px;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--cyan);
}

.page-disclaimer .doc-head__title {
  margin: 0;
  font-size: clamp(34px, 7vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-disclaimer .doc-head__lead {
  margin: 20px 0 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 顶部通栏视觉 ---------- */
.page-disclaimer .doc-hero {
  margin: 0 0 44px;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-disclaimer .doc-hero .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 1;
  object-fit: cover;
}

.page-disclaimer .doc-hero .media-frame__caption {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 阅读进度 ---------- */
.page-disclaimer .scroll-progress {
  position: relative;
  top: auto;
  left: auto;
  right: auto;
  bottom: auto;
  height: 2px;
  margin: 0 0 44px;
  background: var(--ink-700);
  border-radius: 2px;
  overflow: hidden;
  z-index: 1;
}

.page-disclaimer .scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

/* ---------- 三栏文档布局 ---------- */
.page-disclaimer .doc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--doc-gap);
}

/* 左侧分节编号 */
.page-disclaimer .doc-index {
  border-top: 1px solid var(--ink-700);
  padding-top: 16px;
}

.page-disclaimer .doc-index__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-disclaimer .doc-index__list {
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .doc-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  white-space: nowrap;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-disclaimer .doc-index__num {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-disclaimer .doc-index__link:hover,
.page-disclaimer .doc-index__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 正文列 */
.page-disclaimer .doc-body {
  min-width: 0;
  max-width: 42em;
  overflow-wrap: break-word;
}

.page-disclaimer .doc-section {
  padding: 26px 0 34px;
  border-top: 1px solid var(--ink-700);
  scroll-margin-top: calc(var(--belt-h) + 32px);
}

.page-disclaimer .doc-section__num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-disclaimer .doc-section__title {
  margin: 0 0 16px;
  font-size: clamp(21px, 3.4vw, 26px);
  line-height: 1.36;
  letter-spacing: -0.01em;
  font-weight: 600;
  color: var(--white);
}

.page-disclaimer .doc-section p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--white);
}

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

.page-disclaimer .doc-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .doc-list li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-disclaimer .doc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 12px;
  height: 1px;
  background: var(--cyan);
}

.page-disclaimer .doc-quote {
  margin: 24px 0;
  padding: 6px 0 6px 20px;
  border-left: 2px solid var(--cyan);
  font-size: clamp(16px, 2.4vw, 18px);
  line-height: 1.72;
  color: var(--cyan-soft);
}

/* 右侧版本栏 */
.page-disclaimer .doc-aside {
  padding: 22px 20px;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
}

.page-disclaimer .doc-aside__title {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-disclaimer .doc-aside__meta {
  margin: 0 0 18px;
  display: grid;
  gap: 14px;
}

.page-disclaimer .doc-aside__meta dt {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-disclaimer .doc-aside__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
}

.page-disclaimer .doc-aside__text {
  margin: 0 0 18px;
  padding-top: 18px;
  border-top: 1px solid var(--ink-700);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-disclaimer .doc-aside__links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .doc-aside__links a {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-disclaimer .doc-aside__links a:hover,
.page-disclaimer .doc-aside__links a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 结尾引导 ---------- */
.page-disclaimer .doc-outro {
  margin-top: 56px;
  padding: 32px 24px;
  background: linear-gradient(140deg, var(--ink-800), var(--ink-900) 72%);
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

.page-disclaimer .doc-outro__title {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.4;
  color: var(--white);
}

.page-disclaimer .doc-outro__text {
  margin: 0 0 22px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-disclaimer .doc-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .doc-outro__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

/* ---------- 窄屏调整 ---------- */
@media (max-width: 719px) {
  .page-disclaimer .doc-hero .media-frame__img {
    aspect-ratio: 16 / 9;
  }

  .page-disclaimer .doc-head__lead {
    font-size: 15px;
  }

  .page-disclaimer .doc-section p {
    font-size: 15px;
  }

  .page-disclaimer .doc-aside {
    padding: 20px 16px;
  }
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: 104px minmax(0, 1fr) var(--doc-aside-w);
    gap: 40px;
    align-items: start;
  }

  .page-disclaimer .doc-index {
    position: sticky;
    top: calc(var(--belt-h) + 24px);
  }

  .page-disclaimer .doc-index__list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-disclaimer .doc-index__link {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 8px 0;
    line-height: 1.4;
  }

  .page-disclaimer .doc-index__label {
    font-size: 12px;
  }

  .page-disclaimer .doc-aside {
    position: sticky;
    top: calc(var(--belt-h) + 24px);
  }
}

@media (min-width: 1100px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: 116px minmax(0, 1fr) 264px;
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-index__link,
  .page-disclaimer .doc-aside__links a {
    transition: none;
  }
}