.page-privacy {
  --doc-measure: 38ch;
  --doc-rail-w: 14rem;
  display: block;
  background: var(--cream);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

/* ---------- 页头 ---------- */
.page-privacy .doc-head {
  padding-top: clamp(1.6rem, 4vw, 2.8rem);
  padding-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-privacy .breadcrumb {
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-privacy .eyebrow {
  margin: 0 0 0.9rem;
  color: var(--jiang);
}

.page-privacy .page-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.4vw, 3.5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18ch;
}

.page-privacy .page-lede {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.9;
  color: var(--ink-soft);
}

/* ---------- 页头通栏图 ---------- */
.page-privacy .doc-hero {
  margin: 0 0 clamp(2.2rem, 5vw, 3.6rem);
  padding: 0 var(--pad);
}

.page-privacy .doc-hero .media {
  max-width: var(--shell);
  margin: 0 auto;
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow);
  background: var(--jiang-light);
  overflow: hidden;
}

.page-privacy .doc-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 600;
  object-fit: cover;
}

.page-privacy .doc-hero .media__caption {
  max-width: var(--shell);
  margin: 0.75rem auto 0;
  font-size: 0.8rem;
  color: var(--slate);
}

/* ---------- 主体栅格：正文窄栏 + 右侧章节栏 ---------- */
.page-privacy .doc-grid {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  column-gap: clamp(2rem, 5vw, 4.5rem);
  row-gap: clamp(2rem, 5vw, 3rem);
  align-items: start;
}

/* ---------- 章节 ---------- */
.page-privacy .doc-sec {
  padding-block: 0;
  scroll-margin-top: 5.5rem;
}

.page-privacy .doc-sec + .doc-sec {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
  padding-top: clamp(2.2rem, 5vw, 3.4rem);
  border-top: 1px solid var(--jiang-light);
}

.page-privacy .doc-sec__head {
  display: flex;
  align-items: baseline;
  gap: clamp(0.8rem, 2.5vw, 1.4rem);
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.page-privacy .sec-index {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.6vw, 2.9rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--jiang);
  opacity: 0.9;
}

.page-privacy .sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 1.5rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .doc-sec__body p {
  max-width: var(--doc-measure);
  margin: 0 0 1.15em;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-privacy .doc-sec__body p:last-child {
  margin-bottom: 0;
}

.page-privacy .doc-sec__body a {
  color: var(--jiang);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-privacy .doc-sec__body a:hover {
  color: var(--orange-deep);
}

/* ---------- 条款条目 ---------- */
.page-privacy .doc-list {
  list-style: none;
  max-width: var(--doc-measure);
  margin: 0 0 1.15em;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-privacy .doc-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-privacy .doc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.86em;
  width: 0.7rem;
  height: 2px;
  background: var(--jiang);
}

/* ---------- 术语内联标记 ---------- */
.page-privacy .doc-em {
  background: var(--jiang-light);
  color: var(--deep);
  padding: 0.06em 0.34em;
  border-radius: var(--radius);
  border-bottom: 1px solid rgba(47, 127, 134, 0.35);
}

.page-privacy .doc-mail {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--jiang);
  border-left: 3px solid var(--orange);
  background: var(--paper);
  color: var(--ink);
  font-size: 0.95rem;
  word-break: break-all;
}

/* ---------- 右侧章节栏 ---------- */
.page-privacy .doc-rail {
  display: none;
}

.page-privacy .doc-rail__head {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-privacy .doc-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--jiang-light);
}

.page-privacy .doc-rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-left: -1px;
  padding: 0.5rem 0.2rem 0.5rem 0.9rem;
  border-left: 2px solid transparent;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--slate);
  text-decoration: none;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-privacy .doc-rail__link .mono {
  font-size: 0.72rem;
  color: var(--jiang);
}

.page-privacy .doc-rail__link:hover,
.page-privacy .doc-rail__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--orange);
  outline: none;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 1024px) {
  .page-privacy .doc-grid {
    grid-template-columns: minmax(0, 40rem) var(--doc-rail-w);
    justify-content: start;
  }

  .page-privacy .doc-rail {
    display: block;
    position: sticky;
    top: 5.75rem;
    align-self: start;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 560px) {
  .page-privacy .doc-head {
    padding-top: 1.2rem;
  }

  .page-privacy .page-title {
    font-size: 1.9rem;
  }

  .page-privacy .doc-sec__head {
    flex-direction: column;
    gap: 0.4rem;
  }

  .page-privacy .sec-index {
    font-size: 1.7rem;
  }

  .page-privacy .doc-sec__body p,
  .page-privacy .doc-list li {
    font-size: 1rem;
    line-height: 1.85;
  }

  .page-privacy .doc-hero {
    margin-bottom: 2rem;
  }

  .page-privacy .doc-hero .media {
    box-shadow: var(--hard-shadow-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .doc-rail__link {
    transition: none;
  }
}
<<<END>>>