.page-privacy {
  --pv-measure: 36em;
  background: var(--sand);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  padding: clamp(24px, 4.4vw, 58px) 0 clamp(22px, 3vw, 40px);
  border-bottom: 1px solid var(--line-strong);
}

.page-privacy .pv-hero h1 {
  margin: 14px 0 18px;
  max-width: 22em;
}

.page-privacy .pv-lede {
  max-width: 40em;
  margin-bottom: 0;
}

.page-privacy .pv-stamp {
  display: inline-block;
  margin: 22px 0 0;
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--teal-lt);
  color: var(--deep);
  font-size: 12px;
  letter-spacing: .02em;
  line-height: 1.6;
}

/* ---------- 主体布局 ---------- */
.page-privacy .pv-layout {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  padding: clamp(24px, 3.4vw, 42px) 0 clamp(56px, 8vw, 104px);
}

/* ---------- 目录 ---------- */
.page-privacy .pv-toc-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-soft);
}

.page-privacy .pv-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .pv-toc-list li {
  flex: 0 0 auto;
}

.page-privacy .pv-toc-link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .pv-toc-link:hover {
  background: var(--gold-lt);
  color: var(--deep);
}

.page-privacy .pv-toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--data);
}

.page-privacy:has(#pv-scene:target) .pv-toc-link[href="#pv-scene"],
.page-privacy:has(#pv-use:target) .pv-toc-link[href="#pv-use"],
.page-privacy:has(#pv-history:target) .pv-toc-link[href="#pv-history"],
.page-privacy:has(#pv-retain:target) .pv-toc-link[href="#pv-retain"],
.page-privacy:has(#pv-security:target) .pv-toc-link[href="#pv-security"],
.page-privacy:has(#pv-revise:target) .pv-toc-link[href="#pv-revise"] {
  background: var(--gold-lt);
  color: var(--deep);
  font-weight: 700;
}

/* ---------- 正文窄栏 ---------- */
.page-privacy .pv-body {
  max-width: var(--pv-measure);
  font-size: 1rem;
  line-height: 1.85;
}

.page-privacy .pv-body p {
  margin: 0 0 16px;
}

.page-privacy .pv-body p:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-body a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-privacy .pv-body a:hover {
  color: var(--red);
}

/* ---------- 章节 ---------- */
.page-privacy .pv-chapter {
  padding: clamp(22px, 3vw, 36px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--top-h) + 22px);
}

.page-privacy .pv-chapter:first-child {
  padding-top: 2px;
  border-top: 0;
}

.page-privacy .pv-num {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-privacy .pv-num::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-privacy .pv-h2 {
  margin: 0 0 14px;
  color: var(--teal);
}

.page-privacy .pv-h3 {
  margin: 22px 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--deep);
}

/* ---------- 场景块 ---------- */
.page-privacy .pv-cases {
  display: grid;
  gap: 18px;
  margin: 20px 0 0;
}

.page-privacy .pv-case {
  padding-left: 18px;
  border-left: 3px solid var(--gold-lt);
}

.page-privacy .pv-case h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--deep);
}

.page-privacy .pv-case p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 条目列表 ---------- */
.page-privacy .pv-list {
  display: grid;
  gap: 12px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 24px;
  line-height: 1.85;
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--data);
}

.page-privacy .pv-list li strong {
  display: block;
  margin-bottom: 2px;
  color: var(--deep);
  font-weight: 700;
}

/* ---------- 期限定义 ---------- */
.page-privacy .pv-terms {
  display: grid;
  gap: 15px;
  margin: 4px 0 20px;
  padding: 0;
}

.page-privacy .pv-term {
  padding-left: 16px;
  border-left: 3px solid var(--teal-lt);
}

.page-privacy .pv-term dt {
  margin-bottom: 4px;
  font-size: .95rem;
  font-weight: 700;
  color: var(--deep);
}

.page-privacy .pv-term dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 中段示意 ---------- */
.page-privacy .pv-flow {
  margin: clamp(22px, 3.2vw, 38px) 0;
  padding: clamp(14px, 2.2vw, 22px);
  border-radius: var(--radius);
  background-color: var(--teal-lt);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 26px 26px, 26px 26px;
  max-width: var(--pv-measure);
}

.page-privacy .pv-flow-media {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-privacy .pv-flow img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-privacy .pv-flow .media-cap {
  display: block;
  margin: 12px 2px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--teal);
}

/* ---------- 返回顶部 ---------- */
.page-privacy .pv-top {
  position: fixed;
  right: clamp(14px, 3vw, 30px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: var(--deep);
  color: var(--white);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .pv-top:hover {
  background: var(--red);
  transform: translateY(-3px);
}

/* ---------- 桌面端：右侧浮动目录 ---------- */
@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
    column-gap: clamp(34px, 5vw, 76px);
    align-items: start;
  }

  .page-privacy .pv-toc {
    order: 2;
    position: sticky;
    top: calc(var(--top-h) + 28px);
    padding-left: 18px;
    border-left: 1px solid var(--line);
  }

  .page-privacy .pv-toc-title {
    margin-bottom: 14px;
  }

  .page-privacy .pv-toc-list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-privacy .pv-toc-list li {
    flex: 1 1 auto;
  }

  .page-privacy .pv-toc-link:hover {
    transform: translateX(-3px);
  }

  .page-privacy:has(#pv-scene:target) .pv-toc-link[href="#pv-scene"],
  .page-privacy:has(#pv-use:target) .pv-toc-link[href="#pv-use"],
  .page-privacy:has(#pv-history:target) .pv-toc-link[href="#pv-history"],
  .page-privacy:has(#pv-retain:target) .pv-toc-link[href="#pv-retain"],
  .page-privacy:has(#pv-security:target) .pv-toc-link[href="#pv-security"],
  .page-privacy:has(#pv-revise:target) .pv-toc-link[href="#pv-revise"] {
    transform: translateX(-3px);
  }

  .page-privacy .pv-body {
    font-size: 1.02rem;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 560px) {
  .page-privacy .pv-hero h1 {
    max-width: none;
  }

  .page-privacy .pv-flow {
    padding: 12px;
  }

  .page-privacy .pv-top {
    padding: 8px 12px;
    font-size: 12px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-toc-link,
  .page-privacy .pv-top {
    transition: none;
  }

  .page-privacy .pv-toc-link:hover,
  .page-privacy .pv-top:hover,
  .page-privacy:has(#pv-scene:target) .pv-toc-link[href="#pv-scene"],
  .page-privacy:has(#pv-use:target) .pv-toc-link[href="#pv-use"],
  .page-privacy:has(#pv-history:target) .pv-toc-link[href="#pv-history"],
  .page-privacy:has(#pv-retain:target) .pv-toc-link[href="#pv-retain"],
  .page-privacy:has(#pv-security:target) .pv-toc-link[href="#pv-security"],
  .page-privacy:has(#pv-revise:target) .pv-toc-link[href="#pv-revise"] {
    transform: none;
  }
}