/* ===== 数据与隐私 · 页面专属样式（作用域 .page-privacy） ===== */
.page-privacy {
  --prv-quiet: var(--c-gray);
  --prv-line: rgba(138, 147, 166, 0.32);
  --prv-measure: 34em;
  padding-bottom: 1rem;
}

.page-privacy ::selection {
  background: rgba(198, 255, 61, 0.34);
  color: var(--c-paper);
}

.page-privacy .breadcrumbs {
  margin: 1.35rem 0 0;
}

/* ---------- 首屏 ---------- */
.page-privacy .prv-hero {
  padding: 2.25rem 0 2.25rem;
  border-bottom: 1px solid var(--prv-line);
}

.page-privacy .prv-hero__title {
  margin: 0.55rem 0 1.15rem;
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-privacy .prv-hero__lede {
  max-width: var(--prv-measure);
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--c-paper);
}

.page-privacy .prv-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.5rem;
  margin: 1.65rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--prv-quiet);
}

.page-privacy .prv-hero__meta > li {
  position: relative;
  padding-left: 1rem;
}

.page-privacy .prv-hero__meta > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 5px;
  height: 5px;
  background: var(--c-cyan);
}

/* ---------- 顶部纹理条 ---------- */
.page-privacy .prv-banner {
  margin: 2.5rem 0 0;
}

.page-privacy .prv-banner .figure__media {
  aspect-ratio: 16 / 9;
  border: 2px solid var(--c-steel);
  background: var(--c-charcoal);
  overflow: hidden;
}

.page-privacy .prv-banner img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-privacy .prv-banner .figure__caption {
  margin-top: 0.8rem;
  max-width: 46em;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--prv-quiet);
}

/* ---------- 正文与索引双栏 ---------- */
.page-privacy .prv-layout {
  display: grid;
  gap: 3rem;
  padding: 3rem 0 4rem;
}

@media (min-width: 1024px) {
  .page-privacy .prv-layout {
    grid-template-columns: minmax(0, 1fr) 14rem;
    gap: 5rem;
    align-items: start;
  }

  .page-privacy .prv-index {
    position: sticky;
    top: calc(var(--status-h) + 1.5rem);
  }

  .page-privacy .prv-banner .figure__media {
    aspect-ratio: 4 / 1;
  }
}

/* ---------- 章节 ---------- */
.page-privacy .prv-chapter {
  padding: 2.25rem 0 2.75rem;
  border-top: 1px solid var(--prv-line);
}

.page-privacy .prv-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .prv-chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.9rem;
  margin-bottom: 1.3rem;
}

.page-privacy .prv-chapter__num {
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  color: var(--c-lime);
}

.page-privacy .prv-chapter__title {
  margin: 0;
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy .prv-chapter__anchor {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1;
  color: var(--prv-quiet);
  text-decoration: none;
  opacity: 0.42;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .prv-chapter__head:hover .prv-chapter__anchor,
.page-privacy .prv-chapter__anchor:focus-visible {
  opacity: 1;
  color: var(--c-lime);
}

.page-privacy .prv-lede {
  max-width: var(--prv-measure);
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-paper-dim);
}

.page-privacy .prv-lede + .prv-lede {
  margin-top: -0.25rem;
}

/* ---------- 悬挂缩进条目 ---------- */
.page-privacy .prv-list {
  display: grid;
  gap: 1.15rem;
  max-width: var(--prv-measure);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .prv-list > li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-paper-dim);
}

.page-privacy .prv-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(0.925em - 1px);
  width: 1.05rem;
  height: 2px;
  background: var(--c-lime);
}

.page-privacy .prv-list--cyan > li::before {
  background: var(--c-cyan);
}

.page-privacy .prv-list strong {
  color: var(--c-paper);
  font-weight: 700;
}

.page-privacy .prv-list a {
  color: var(--c-lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .prv-list a:hover,
.page-privacy .prv-list a:focus-visible {
  color: var(--c-signal);
}

/* ---------- 补充说明块 ---------- */
.page-privacy .prv-note {
  max-width: var(--prv-measure);
  margin: 1.75rem 0 0;
  padding: 1.1rem 1.25rem 1.2rem;
  border: 2px solid var(--c-steel);
  border-left-width: 6px;
  border-left-color: var(--c-signal);
  background: var(--c-charcoal);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--c-paper-dim);
}

.page-privacy .prv-note__label {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-signal);
}

/* ---------- 相关入口 ---------- */
.page-privacy .prv-related {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--prv-line);
}

.page-privacy .prv-related__title {
  margin: 0 0 1.1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--prv-quiet);
}

.page-privacy .prv-related__grid {
  display: grid;
  gap: 0.9rem;
}

@media (min-width: 768px) {
  .page-privacy .prv-related__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-privacy .prv-related__card {
  display: grid;
  gap: 0.4rem;
  padding: 1.05rem 1.15rem 1.15rem;
  border: 2px solid var(--c-steel);
  background: var(--c-charcoal);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .prv-related__card:hover,
.page-privacy .prv-related__card:focus-visible {
  border-color: var(--c-lime);
  transform: translate(-2px, -2px);
}

.page-privacy .prv-related__num {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.page-privacy .prv-related__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-privacy .prv-related__desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--prv-quiet);
}

/* ---------- 右侧章节索引 ---------- */
.page-privacy .prv-index {
  padding: 1.15rem 1.15rem 1.3rem;
  border: 1px solid var(--prv-line);
  background: rgba(20, 22, 28, 0.62);
}

.page-privacy .prv-index__label {
  margin: 0 0 0.85rem;
  font-size: 0.6875rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--prv-quiet);
}

.page-privacy .prv-index__list {
  display: grid;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .prv-index__link {
  display: flex;
  gap: 0.65rem;
  align-items: baseline;
  padding: 0.5rem 0.5rem 0.5rem 0.6rem;
  border-left: 2px solid transparent;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--c-paper-dim);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-privacy .prv-index__link:hover,
.page-privacy .prv-index__link:focus-visible {
  border-left-color: var(--c-lime);
  color: var(--c-paper);
  background: rgba(198, 255, 61, 0.07);
}

.page-privacy .prv-index__num {
  flex: 0 0 auto;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--c-lime);
}

@media (max-width: 420px) {
  .page-privacy .prv-hero__title {
    font-size: 2.35rem;
  }

  .page-privacy .prv-list > li {
    padding-left: 1.5rem;
  }

  .page-privacy .prv-list > li::before {
    width: 0.85rem;
  }
}