.page-privacy {
  --pv-rail: 84px;
  --pv-gap: clamp(20px, 4vw, 52px);
  --pv-measure: 44rem;
}

/* 面包屑行 */
.page-privacy .pv-crumbs {
  padding-top: clamp(20px, 4vw, 36px);
}

/* 首屏 */
.page-privacy .pv-hero {
  padding-block: clamp(24px, 4vw, 44px) clamp(32px, 6vw, 72px);
}

.page-privacy .pv-hero__wrap {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-privacy .pv-hero__text .display {
  margin: 14px 0 0;
  max-width: 14em;
}

.page-privacy .pv-hero__text .lede {
  margin: 18px 0 0;
  max-width: 36em;
}

.page-privacy .pv-hero__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--turf-line);
  background: var(--turf-deep);
  overflow: hidden;
}

.page-privacy .pv-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 23, 15, 0) 30%, rgba(6, 23, 15, 0.72) 100%);
  pointer-events: none;
}

.page-privacy .pv-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.66;
}

/* 粘性目录 */
.page-privacy .pv-toc {
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(6, 23, 15, 0.94);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--turf-line);
  border-bottom: 1px solid var(--turf-line);
}

.page-privacy .pv-toc__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-privacy .pv-toc__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--smoke);
}

.page-privacy .pv-toc__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 0 0 auto;
}

.page-privacy .pv-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--smoke);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-privacy .pv-toc__link:hover,
.page-privacy .pv-toc__link:focus-visible {
  color: var(--chalk);
  border-color: var(--turf-line);
  background: var(--card-slate);
}

.page-privacy .pv-toc__n {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--cyan-muted);
}

.page-privacy .pv-toc__link:hover .pv-toc__n,
.page-privacy .pv-toc__link:focus-visible .pv-toc__n {
  color: var(--neon-cyan);
}

/* 条文主体 */
.page-privacy .pv-body {
  padding-block: clamp(40px, 7vw, 88px) clamp(48px, 8vw, 104px);
}

.page-privacy .pv-body__canvas {
  display: grid;
  gap: 0;
}

.page-privacy .pv-chapter {
  display: grid;
  gap: 14px;
  padding-block: clamp(32px, 5.5vw, 68px);
  border-top: 1px solid var(--turf-line);
}

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

.page-privacy .pv-chapter__rail {
  display: flex;
  align-items: flex-start;
}

.page-privacy .pv-chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--turf-line);
  transition: color var(--t-mid) var(--ease);
}

.page-privacy .pv-chapter.is-in .pv-chapter__num {
  color: var(--cyan-muted);
}

.page-privacy .pv-chapter__content {
  max-width: var(--pv-measure);
}

.page-privacy .pv-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 33px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--chalk);
}

.page-privacy .pv-chapter__lede {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--smoke);
}

.page-privacy .pv-chapter__content .prose {
  margin-top: 20px;
}

.page-privacy .pv-chapter__content .prose p {
  margin: 0 0 15px;
}

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

.page-privacy .pv-chapter__content .prose a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-muted);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-privacy .pv-chapter__content .prose a:hover,
.page-privacy .pv-chapter__content .prose a:focus-visible {
  color: var(--chalk);
  border-bottom-color: var(--neon-cyan);
}

/* 关键词标注 */
.page-privacy .pv-term {
  color: var(--chalk);
  border-bottom: 1px dashed var(--cyan-muted);
  cursor: help;
}

.page-privacy .pv-term:hover {
  border-bottom-color: var(--neon-cyan);
}

/* 信息条目 */
.page-privacy .pv-lines {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-privacy .pv-lines li {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--turf-line);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--smoke);
}

.page-privacy .pv-lines li::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  margin-top: 0.62em;
  background: var(--neon-cyan);
}

/* 用途对照 */
.page-privacy .pv-flow {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
}

.page-privacy .pv-flow__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--turf-line);
}

.page-privacy .pv-flow__row:last-child {
  border-bottom: 1px solid var(--turf-line);
}

.page-privacy .pv-flow__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--neon-cyan);
}

.page-privacy .pv-flow__v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--smoke);
}

/* 留存周期 */
.page-privacy .pv-meter-list {
  margin: 26px 0 0;
  display: grid;
  gap: 20px;
  padding: 20px;
  background: var(--card-slate);
  border: 1px solid var(--turf-line);
}

.page-privacy .pv-meter__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
}

.page-privacy .pv-meter__label {
  font-size: 14px;
  color: var(--chalk);
}

.page-privacy .pv-meter__val {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--flare-soft);
}

.page-privacy .pv-meter-list .meter {
  height: 3px;
  background: var(--turf-line);
  overflow: hidden;
}

.page-privacy .pv-meter-list .meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan-muted), var(--neon-cyan));
  transition: width 400ms var(--ease);
}

.page-privacy .pv-meter-list .meter__fill[style] {
  width: var(--w, 0);
}

/* 联系块 */
.page-privacy .pv-contact {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--turf-line);
}

.page-privacy .pv-contact__cell {
  display: grid;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--turf-line);
}

.page-privacy .pv-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--smoke);
}

.page-privacy .pv-contact__v {
  font-size: 15px;
  line-height: 1.6;
  color: var(--chalk);
}

.page-privacy .pv-contact__v--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

/* 尾段索引 */
.page-privacy .pv-next {
  padding-block: clamp(36px, 6vw, 68px);
  background: var(--turf-deep);
  border-top: 1px solid var(--turf-line);
}

.page-privacy .pv-next__inner {
  display: grid;
  gap: 22px;
}

.page-privacy .pv-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--turf-line);
}

.page-privacy .pv-next__item {
  border-bottom: 1px solid var(--turf-line);
}

.page-privacy .pv-next__link {
  display: grid;
  gap: 5px;
  padding: 18px 0;
  text-decoration: none;
  transition: padding-left var(--t-mid) var(--ease), background-color var(--t-mid) var(--ease);
}

.page-privacy .pv-next__link:hover,
.page-privacy .pv-next__link:focus-visible {
  padding-left: 14px;
  background: var(--card-slate);
}

.page-privacy .pv-next__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--chalk);
  transition: color var(--t-fast) var(--ease);
}

.page-privacy .pv-next__link:hover .pv-next__title,
.page-privacy .pv-next__link:focus-visible .pv-next__title {
  color: var(--neon-cyan);
}

.page-privacy .pv-next__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--smoke);
}

/* 平板及以上 */
@media (min-width: 700px) {
  .page-privacy .pv-flow__row {
    grid-template-columns: 9rem minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-privacy .pv-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-privacy .pv-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-privacy .pv-next__item {
    border-bottom: 0;
    border-top: 1px solid var(--turf-line);
  }

  .page-privacy .pv-next__list {
    border-top: 0;
  }

  .page-privacy .pv-next__item:nth-child(-n + 2) {
    border-top: 0;
  }
}

/* 桌面端：编号轨道 + 正文列 */
@media (min-width: 900px) {
  .page-privacy .pv-hero__wrap {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }

  .page-privacy .pv-chapter {
    grid-template-columns: var(--pv-rail) minmax(0, 1fr);
    gap: var(--pv-gap);
  }

  .page-privacy .pv-chapter__rail {
    justify-content: flex-start;
  }

  .page-privacy .pv-chapter__num {
    padding-top: 6px;
  }

  .page-privacy .pv-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .pv-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-privacy .pv-next__item {
    border-top: 1px solid var(--turf-line);
  }

  .page-privacy .pv-next__item:nth-child(-n + 2) {
    border-top: 1px solid var(--turf-line);
  }
}

/* 大屏：正文列留出留白，旁注空间 */
@media (min-width: 1200px) {
  .page-privacy .pv-chapter__content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 0;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-toc__link,
  .page-privacy .pv-chapter__num,
  .page-privacy .pv-next__link,
  .page-privacy .pv-next__title,
  .page-privacy .pv-meter-list .meter__fill,
  .page-privacy .pv-chapter__content .prose a,
  .page-privacy .pv-term {
    transition: none;
  }
}

.page-privacy {
  --w: 1rem;
}