.page-disclaimer {
  --doc-measure: 60ch;
  --doc-gutter: clamp(20px, 4vw, 48px);
  position: relative;
  padding-bottom: 96px;
}

.page-disclaimer .scroll-progress {
  background-color: var(--orange);
}

.page-disclaimer .shell {
  padding-left: var(--gutter, 24px);
  padding-right: var(--gutter, 24px);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 28px 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
}

.page-disclaimer .breadcrumb__item {
  color: var(--silver);
  text-decoration: none;
}

.page-disclaimer .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-disclaimer a.breadcrumb__item:hover {
  color: var(--cyan);
}

.page-disclaimer .breadcrumb__item[aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .doc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: 16px 0 52px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-hero__title {
  margin: 14px 0 0;
  max-width: 18ch;
  font-family: var(--font-head);
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-disclaimer .doc-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  color: var(--silver);
}

.page-disclaimer .doc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-disclaimer .doc-hero__figure {
  margin: 0;
  width: 100%;
  max-width: 340px;
  justify-self: start;
}

.page-disclaimer .doc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 24px;
  object-fit: cover;
}

/* ---------- 正文条款 ---------- */
.page-disclaimer .doc-body {
  padding-top: 4px;
}

.page-disclaimer .doc-section {
  padding: 36px 0 34px;
  border-top: 1px solid var(--line);
  transition: border-color var(--dur-fast) var(--ease);
  scroll-margin-top: 96px;
}

.page-disclaimer .doc-section:first-child {
  border-top: 0;
}

.page-disclaimer .doc-section:hover {
  border-top-color: var(--cyan);
}

.page-disclaimer .doc-section__head {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0 8px;
}

.page-disclaimer .doc-section__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 5vw, 32px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-disclaimer .doc-section__title {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-head);
  font-size: clamp(21px, 4.2vw, 30px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .doc-section__body {
  margin-top: 18px;
  max-width: var(--doc-measure);
}

.page-disclaimer .doc-section__body p {
  margin: 0 0 1em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

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

.page-disclaimer .doc-section__body strong {
  font-weight: 600;
  color: var(--paper);
}

.page-disclaimer .doc-section__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  transition: border-color var(--dur-fast) var(--ease);
}

.page-disclaimer .doc-section__body a:hover {
  border-bottom-color: var(--cyan);
}

.page-disclaimer .doc-section__body .mail {
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 章节跳转 ---------- */
.page-disclaimer .doc-index {
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .doc-index__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.page-disclaimer .doc-index__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-disclaimer .doc-index__note {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-disclaimer .doc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

.page-disclaimer .doc-index__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 14px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-disclaimer .doc-index__list a span:first-child {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .doc-index__list a:hover {
  background-color: var(--panel);
  border-color: var(--cyan);
}

/* ---------- 回到顶部 ---------- */
.page-disclaimer .doc-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background-color: var(--panel);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--silver);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.page-disclaimer .doc-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .doc-section__body {
    padding-left: calc(3.4rem + 8px);
  }

  .page-disclaimer .doc-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 40px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .doc-hero {
    grid-template-columns: minmax(0, 1.75fr) minmax(220px, 0.75fr);
    gap: 56px;
    align-items: end;
    padding: 30px 0 68px;
  }

  .page-disclaimer .doc-hero__figure {
    justify-self: end;
  }

  .page-disclaimer .doc-section {
    padding: 44px 0 40px;
  }

  .page-disclaimer .doc-section__body {
    max-width: 66ch;
  }

  .page-disclaimer .doc-top {
    right: 28px;
    bottom: 28px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-section,
  .page-disclaimer .doc-index__list a,
  .page-disclaimer .doc-top,
  .page-disclaimer .doc-section__body a {
    transition: none;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-disclaimer .doc-top {
    display: none;
  }

  .page-disclaimer .doc-section {
    border-top-color: #999;
    page-break-inside: avoid;
  }
}