.page-privacy {
  --pv-measure: 68ch;
  --pv-index-w: 216px;
}

/* ---------- 顶部通栏视觉停顿 ---------- */
.page-privacy .pv-banner {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border-bottom: 2px solid var(--line);
}

.page-privacy .pv-banner img {
  display: block;
  width: 100%;
  height: clamp(110px, 15vw, 208px);
  object-fit: cover;
  opacity: .82;
}

.page-privacy .pv-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 10, 20, .1) 0%, rgba(6, 10, 20, .55) 62%, rgba(6, 10, 20, .95) 100%);
}

/* ---------- 面包屑与标题区 ---------- */
.page-privacy .crumbs {
  padding-top: clamp(16px, 3vw, 26px);
}

.page-privacy .pv-head {
  padding-block: clamp(20px, 3.6vw, 40px) clamp(24px, 4vw, 46px);
}

.page-privacy .pv-head .idx {
  display: block;
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-privacy .pv-head h1 {
  margin: 0 0 18px;
  font-family: var(--font-cond);
  font-size: clamp(40px, 8.5vw, 78px);
  font-weight: 900;
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-privacy .pv-lead {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.82;
  color: var(--body-ink);
}

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

/* ---------- 双栏骨架：章节索引 + 长文正文 ---------- */
.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 54px);
  padding-bottom: clamp(48px, 9vw, 104px);
}

/* ---------- 章节索引 ---------- */
.page-privacy .pv-index {
  min-width: 0;
}

.page-privacy .pv-index__title {
  display: block;
  margin: 0 0 10px;
  color: var(--muted);
}

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

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

.page-privacy .pv-index a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  min-height: 44px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
  white-space: nowrap;
  text-decoration: none;
  transition: color .2s var(--ease-out), border-color .2s var(--ease-out), background-color .2s var(--ease-out);
}

.page-privacy .pv-index a:hover,
.page-privacy .pv-index a:focus-visible {
  color: var(--ink);
  border-color: var(--cyan);
}

.page-privacy .pv-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ---------- 正文列 ---------- */
.page-privacy .pv-article {
  min-width: 0;
  max-width: var(--pv-measure);
}

.page-privacy .pv-sec {
  padding-block: clamp(26px, 3.8vw, 42px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 92px;
}

.page-privacy .pv-sec:first-child {
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 2px solid var(--cyan);
}

.page-privacy .pv-sec h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
  font-size: clamp(21px, 2.9vw, 28px);
  font-weight: 800;
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-privacy .pv-sec h2 .pv-num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .18em;
}

.page-privacy .pv-sec p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.78;
  color: var(--body-ink);
}

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

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

.page-privacy .pv-sec a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-privacy .pv-sec a:hover,
.page-privacy .pv-sec a:focus-visible {
  color: var(--ink);
}

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

.page-privacy .pv-list li {
  position: relative;
  padding-left: 22px;
  font-size: 16.5px;
  line-height: 1.74;
  color: var(--body-ink);
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 键值对照（本地保存内容） ---------- */
.page-privacy .pv-kv {
  margin: 4px 0 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-kv > div {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-kv dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-privacy .pv-kv dd {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.74;
  color: var(--body-ink);
}

/* ---------- 可展开补充说明 ---------- */
.page-privacy .pv-more {
  margin: 4px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-privacy .pv-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  list-style: none;
  cursor: pointer;
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: .02em;
}

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

.page-privacy .pv-more summary::before {
  content: "＋";
  font-size: 15px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-privacy .pv-more p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 信息流向示意 ---------- */
.page-privacy .pv-diagram {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 4px 0 22px;
}

.page-privacy .pv-diagram .dv-node {
  fill: var(--panel);
  stroke: var(--line);
  stroke-width: 2;
}

.page-privacy .pv-diagram .dv-line {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}

.page-privacy .pv-diagram .dv-line--cyan {
  stroke: var(--cyan);
}

.page-privacy .pv-diagram text {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  fill: var(--muted);
}

/* ---------- 当前章节高亮（渐进增强） ---------- */
.page-privacy:has(#pv-collect:target) .pv-index a[href="#pv-collect"],
.page-privacy:has(#pv-use:target) .pv-index a[href="#pv-use"],
.page-privacy:has(#pv-storage:target) .pv-index a[href="#pv-storage"],
.page-privacy:has(#pv-third:target) .pv-index a[href="#pv-third"],
.page-privacy:has(#pv-control:target) .pv-index a[href="#pv-control"],
.page-privacy:has(#pv-update:target) .pv-index a[href="#pv-update"] {
  color: var(--ink);
  border-color: var(--cyan);
  background: linear-gradient(90deg, rgba(47, 243, 224, .12), rgba(47, 243, 224, 0) 82%);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-privacy .pv-kv > div {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-privacy .pv-kv dt {
    padding-top: .42em;
  }
}

@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-privacy .pv-index {
    position: sticky;
    top: 92px;
  }

  .page-privacy .pv-index ol {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-privacy .pv-index li {
    width: 100%;
  }

  .page-privacy .pv-index a {
    width: 100%;
    padding: 10px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    white-space: normal;
  }

  .page-privacy .pv-index a:hover,
  .page-privacy .pv-index a:focus-visible {
    border-left-color: var(--cyan);
    background: linear-gradient(90deg, rgba(47, 243, 224, .1), rgba(47, 243, 224, 0) 86%);
  }

  .page-privacy:has(#pv-collect:target) .pv-index a[href="#pv-collect"],
  .page-privacy:has(#pv-use:target) .pv-index a[href="#pv-use"],
  .page-privacy:has(#pv-storage:target) .pv-index a[href="#pv-storage"],
  .page-privacy:has(#pv-third:target) .pv-index a[href="#pv-third"],
  .page-privacy:has(#pv-control:target) .pv-index a[href="#pv-control"],
  .page-privacy:has(#pv-update:target) .pv-index a[href="#pv-update"] {
    border-left-color: var(--cyan);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }

  .page-privacy .pv-sec {
    scroll-margin-top: 104px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy *,
  .page-privacy *::before,
  .page-privacy *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}
<<<END>>>