.page-privacy {
  --privacy-measure: 40rem;
  --privacy-gap: clamp(2rem, 4.5vw, 3.5rem);
  background: var(--ink-800);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

/* ---------- 面包屑 ---------- */
.page-privacy .breadcrumbs {
  padding-block: 1.5rem 0;
}

/* ---------- 页首导语 ---------- */
.page-privacy .privacy-lead {
  position: relative;
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-privacy .privacy-lead::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--orange) 0%, rgba(255, 107, 53, .12) 42%, transparent 100%);
}

.page-privacy .privacy-lead__kicker {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 1.5rem;
}

.page-privacy .privacy-lead__title {
  font-size: clamp(1.9rem, 5.4vw, 3.5rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0 0 1.5rem;
  max-width: 20ch;
}

.page-privacy .privacy-lead__lede {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--steel);
  margin: 0 0 1.75rem;
  max-width: 46rem;
}

.page-privacy .privacy-lead__marks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

/* ---------- 左索引柱 ---------- */
.page-privacy .privacy-shell {
  align-items: start;
  gap: clamp(1.5rem, 3.5vw, 3.5rem);
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.page-privacy .privacy-rail {
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(22, 52, 92, .55) 0%, rgba(6, 20, 40, .35) 100%);
  padding: 1.25rem 1.125rem 1.5rem;
}

.page-privacy .privacy-rail .rail__title {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 1rem;
}

/* ---------- 纸张面板 ---------- */
.page-privacy .privacy-sheet {
  position: relative;
  background: var(--paper);
  color: var(--graphite);
  border: 1px solid var(--rule-strong);
  box-shadow: 10px 10px 0 var(--ink-900);
  padding: clamp(1.75rem, 4vw, 3.5rem) clamp(1.25rem, 3.5vw, 3.25rem);
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-chapter {
  max-width: var(--privacy-measure);
  scroll-margin-top: 5.5rem;
}

.page-privacy .privacy-chapter + .privacy-chapter {
  margin-top: var(--privacy-gap);
  padding-top: var(--privacy-gap);
  border-top: 1px solid var(--rule);
}

.page-privacy .privacy-chapter__head {
  display: flex;
  align-items: baseline;
  gap: .875rem;
  margin-bottom: 1.125rem;
}

.page-privacy .privacy-chapter__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-privacy .privacy-chapter__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.7vw, 1.75rem);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-800);
}

.page-privacy .privacy-point {
  margin: 0 0 1.5rem;
  padding-left: 1rem;
  border-left: 3px solid var(--orange);
  font-size: 1.0625rem;
  line-height: 1.75;
  font-weight: 700;
  color: var(--ink-800);
}

.page-privacy .privacy-sub {
  margin: 1.5rem 0 .75rem;
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--teal-deep);
}

.page-privacy .privacy-sub:first-child {
  margin-top: 0;
}

/* ---------- 折叠明细 ---------- */
.page-privacy .privacy-more {
  border-top: 1px solid var(--rule);
}

.page-privacy .privacy-more > summary {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .875rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--teal-deep);
  transition: color .2s var(--ease);
}

.page-privacy .privacy-more > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-more > summary::before {
  content: "＋";
  font-size: .9rem;
  line-height: 1;
}

.page-privacy .privacy-more[open] > summary::before {
  content: "－";
}

.page-privacy .privacy-more > summary:hover {
  color: var(--orange);
}

.page-privacy .privacy-more__body {
  padding: .25rem 0 1.25rem;
}

/* ---------- 列表与步骤 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: .875rem;
  font-size: .9375rem;
  line-height: 1.85;
}

.page-privacy .privacy-list li:last-child {
  margin-bottom: 0;
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 6px;
  height: 6px;
  background: var(--teal);
}

.page-privacy .privacy-list strong {
  color: var(--ink-800);
  font-weight: 700;
}

.page-privacy .privacy-steps {
  list-style: none;
  counter-reset: privacy-step;
  margin: 0 0 1rem;
  padding: 0;
}

.page-privacy .privacy-steps li {
  counter-increment: privacy-step;
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: .875rem;
  font-size: .9375rem;
  line-height: 1.85;
}

.page-privacy .privacy-steps li::before {
  content: counter(privacy-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .35em;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .06em;
}

.page-privacy .privacy-note {
  margin: 1rem 0 0;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-privacy .privacy-note a,
.page-privacy .privacy-list a {
  color: var(--teal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .privacy-note a:hover,
.page-privacy .privacy-list a:hover {
  color: var(--orange);
}

/* ---------- 配图 ---------- */
.page-privacy .privacy-figure {
  margin: 0 0 1.75rem;
}

/* ---------- 数据分层示意 ---------- */
.page-privacy .layer-stack {
  display: grid;
  gap: .5rem;
  margin: 0 0 1.5rem;
}

.page-privacy .layer-stack__row {
  display: grid;
  gap: .2rem;
  padding: .875rem 1rem;
  background: #fff;
  border: 1px solid var(--rule-strong);
  border-left-width: 4px;
}

.page-privacy .layer-stack__row--1 {
  border-left-color: var(--steel);
}

.page-privacy .layer-stack__row--2 {
  width: 84%;
  border-left-color: var(--teal);
  background: rgba(0, 194, 168, .07);
}

.page-privacy .layer-stack__row--3 {
  width: 66%;
  border-left-color: var(--teal-deep);
  background: rgba(0, 194, 168, .14);
}

.page-privacy .layer-stack__label {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--ink-800);
}

.page-privacy .layer-stack__desc {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--graphite);
}

.page-privacy .layer-stack__scope {
  font-size: .75rem;
  line-height: 1.6;
  color: var(--teal-deep);
}

/* ---------- 联系渠道 ---------- */
.page-privacy .privacy-contact {
  display: grid;
  gap: .25rem;
  margin-bottom: 1rem;
}

.page-privacy .privacy-contact .contact-line {
  padding-block: .75rem;
  border-bottom: 1px solid var(--rule);
}

.page-privacy .privacy-contact .contact-line:last-child {
  border-bottom: 0;
}

/* ---------- 中屏调整 ---------- */
@media (max-width: 1080px) {
  .page-privacy .layer-stack__row--2 {
    width: 100%;
  }

  .page-privacy .layer-stack__row--3 {
    width: 100%;
  }
}

/* ---------- 窄屏：索引柱横向化 ---------- */
@media (max-width: 899px) {
  .page-privacy .privacy-shell {
    padding-top: 1.5rem;
  }

  .page-privacy .privacy-rail {
    position: static;
    border-left: 0;
    border-right: 0;
    border-top: 0;
    background: transparent;
    padding: .5rem 0 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .page-privacy .privacy-rail::-webkit-scrollbar {
    display: none;
  }

  .page-privacy .privacy-rail .rail__title {
    margin-bottom: .625rem;
  }

  .page-privacy .privacy-rail .rail-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: .5rem;
    width: max-content;
  }

  .page-privacy .privacy-rail .rail-link {
    flex: 0 0 auto;
    white-space: nowrap;
    border: 1px solid var(--rule);
    padding: .5rem .75rem;
    font-size: .8125rem;
  }

  .page-privacy .privacy-sheet {
    box-shadow: 6px 6px 0 var(--ink-900);
  }
}

/* ---------- 小屏微调 ---------- */
@media (max-width: 560px) {
  .page-privacy .privacy-lead__lede {
    font-size: 1rem;
    line-height: 1.8;
  }

  .page-privacy .privacy-point {
    font-size: 1rem;
    padding-left: .75rem;
  }

  .page-privacy .layer-stack__row {
    padding: .75rem .875rem;
  }
}

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