/* ===== 数据与隐私 · 页面专属样式 ===== */
.page-privacy {
  --priv-measure: 64ch;
  padding-bottom: 96px;
  overflow-x: hidden;
}

.page-privacy .crumb {
  padding-top: 28px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-privacy .priv-hero {
  display: grid;
  gap: 16px;
  padding: 30px 0 40px;
}

.page-privacy .priv-hero .eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-privacy .priv-title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-privacy .priv-hero .lede {
  margin: 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .priv-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 6px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-privacy .priv-meta li {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-privacy .priv-meta b {
  display: inline-block;
  margin-left: 6px;
  font-family: var(--mono);
  font-weight: 500;
  color: var(--mist);
}

/* ---------- 通栏视觉 ---------- */
.page-privacy .priv-banner {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--indigo);
}

.page-privacy .priv-banner img {
  display: block;
  width: 100%;
  max-height: 400px;
  height: auto;
  object-fit: cover;
  opacity: .92;
}

/* ---------- 布局 ---------- */
.page-privacy .priv-layout {
  display: grid;
  gap: 30px;
  padding-top: 46px;
}

.page-privacy .priv-stream {
  max-width: 760px;
}

/* ---------- 侧边索引导航 ---------- */
.page-privacy .priv-rail__title {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-privacy .priv-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .priv-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.2;
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-privacy .priv-rail__list a .mono {
  font-size: 12px;
  color: var(--amber);
}

.page-privacy .priv-rail__list a:hover,
.page-privacy .priv-rail__list a:focus-visible {
  color: var(--mist);
  border-color: var(--cyan);
  background: rgba(53, 208, 196, .08);
}

/* ---------- 章节 ---------- */
.page-privacy .priv-sec {
  position: relative;
  padding: 40px 0 34px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-privacy .priv-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .priv-sec__idx {
  display: inline-block;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(242, 166, 59, .38);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--amber);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-privacy .priv-sec:target .priv-sec__idx {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-privacy .priv-sec__title {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(22px, 4.4vw, 31px);
  line-height: 1.26;
  color: var(--mist);
}

.page-privacy .priv-sec p {
  max-width: var(--priv-measure);
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

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

.page-privacy .priv-sec p strong {
  color: var(--mist);
  font-weight: 600;
}

.page-privacy .priv-sec p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 208, 196, .4);
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-privacy .priv-sec p a:hover {
  border-bottom-color: var(--amber);
  color: var(--amber);
}

.page-privacy .priv-sub {
  margin: 26px 0 12px;
  font-family: var(--geo);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-privacy .priv-list {
  max-width: var(--priv-measure);
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-privacy .priv-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .priv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .priv-list li strong {
  color: var(--mist);
  font-weight: 600;
}

/* ---------- 期限对照 ---------- */
.page-privacy .priv-def {
  max-width: var(--priv-measure);
  margin: 0 0 20px;
  border-top: 1px solid var(--line);
}

.page-privacy .priv-def > div {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .priv-def dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--mist);
}

.page-privacy .priv-def dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 要点摘要框 ---------- */
.page-privacy .priv-summary {
  max-width: var(--priv-measure);
  margin: 6px 0 30px;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: linear-gradient(180deg, rgba(53, 208, 196, .07), rgba(23, 52, 80, .3));
  outline: none;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-privacy .priv-summary:focus-visible {
  box-shadow: 0 0 0 2px rgba(53, 208, 196, .38);
}

.page-privacy .priv-summary__head {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-privacy .priv-summary__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-privacy .priv-summary__list li {
  position: relative;
  padding-left: 17px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-privacy .priv-summary__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--amber);
  transform: rotate(45deg);
}

.page-privacy .priv-summary__more {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 结尾操作 ---------- */
.page-privacy .priv-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-privacy .priv-def > div {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ---------- 桌面双栏 ---------- */
@media (min-width: 1024px) {
  .page-privacy .priv-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 68px;
    padding-top: 60px;
  }

  .page-privacy .priv-rail {
    grid-column: 1;
    grid-row: 1;
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-privacy .priv-stream {
    grid-column: 2;
    grid-row: 1;
  }

  .page-privacy .priv-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-left: 1px solid var(--line);
  }

  .page-privacy .priv-rail__list li {
    width: 100%;
  }

  .page-privacy .priv-rail__list a {
    width: 100%;
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    background: transparent;
  }

  .page-privacy .priv-rail__list a:hover,
  .page-privacy .priv-rail__list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(53, 208, 196, .07);
  }

  .page-privacy .priv-sec {
    padding: 48px 0 42px;
  }
}

/* ---------- 摘要框悬停展开 ---------- */
@media (min-width: 900px) and (hover: hover) {
  .page-privacy .priv-summary {
    cursor: default;
  }

  .page-privacy .priv-summary__more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms var(--ease), opacity 180ms var(--ease),
      margin-top 220ms var(--ease), padding-top 220ms var(--ease),
      border-color 220ms var(--ease);
  }

  .page-privacy .priv-summary:hover,
  .page-privacy .priv-summary:focus-within,
  .page-privacy .priv-summary:focus-visible {
    border-left-color: var(--amber);
    background: linear-gradient(180deg, rgba(242, 166, 59, .08), rgba(23, 52, 80, .34));
  }

  .page-privacy .priv-summary:hover .priv-summary__more,
  .page-privacy .priv-summary:focus-within .priv-summary__more,
  .page-privacy .priv-summary:focus-visible .priv-summary__more {
    max-height: 260px;
    margin-top: 14px;
    padding-top: 12px;
    border-top-color: var(--line-soft);
    opacity: 1;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .priv-summary,
  .page-privacy .priv-summary__more,
  .page-privacy .priv-rail__list a,
  .page-privacy .priv-sec__idx,
  .page-privacy .priv-sec p a {
    transition: none;
  }
}