.page-privacy {
  --pv-measure: 44em;
  --pv-index-w: 232px;
  --pv-gap: clamp(32px, 5vw, 76px);
  background: var(--sf-night);
}

/* ---------- 顶部横幅 ---------- */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  background: var(--sf-night);
  padding-top: calc(var(--sf-header-h) + clamp(36px, 6vw, 84px));
  padding-bottom: clamp(44px, 6vw, 84px);
}

.page-privacy .pv-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.page-privacy .pv-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 20, 16, .78) 0%, rgba(6, 20, 16, .9) 58%, var(--sf-night) 100%),
    repeating-linear-gradient(90deg, var(--sf-grid-line) 0 1px, transparent 1px 96px);
}

.page-privacy .pv-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .pv-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--sf-silver);
}

.page-privacy .pv-crumb a {
  color: var(--sf-silver);
  text-decoration: none;
  transition: color .2s ease;
}

.page-privacy .pv-crumb a:hover,
.page-privacy .pv-crumb a:focus-visible {
  color: var(--sf-glow);
}

.page-privacy .pv-crumb [aria-current="page"] {
  color: var(--sf-glow);
}

.page-privacy .pv-hero .sf-eyebrow {
  margin-bottom: 12px;
}

.page-privacy .pv-hero h1 {
  margin: 0 0 20px;
  color: var(--sf-chalk);
}

.page-privacy .pv-hero__lead {
  max-width: 40em;
  margin: 0;
  color: var(--sf-silver);
  font-size: 16.5px;
  line-height: 1.85;
}

/* ---------- 正文分区 ---------- */
.page-privacy .pv-body {
  background: var(--sf-deep);
  border-top: 1px solid var(--sf-line);
  padding: clamp(44px, 7vw, 96px) 0 clamp(64px, 9vw, 120px);
}

.page-privacy .pv-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 48px);
  align-items: start;
}

/* ---------- 章节索引 ---------- */
.page-privacy .pv-index {
  border-left: 1px solid var(--sf-line);
  padding-left: 16px;
}

.page-privacy .pv-index__title {
  margin: 0 0 12px;
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sf-mute);
}

.page-privacy .pv-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .pv-index__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: var(--sf-radius);
  color: var(--sf-silver);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-privacy .pv-index__link:hover,
.page-privacy .pv-index__link:focus-visible {
  color: var(--sf-chalk);
  border-color: var(--sf-line);
  background: rgba(18, 60, 41, .55);
  outline: none;
}

.page-privacy .pv-index__num {
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--sf-glow);
  border: 1px solid rgba(200, 255, 77, .4);
  border-radius: var(--sf-radius);
  padding: 2px 6px;
  line-height: 1.2;
  flex: none;
  font-variant-numeric: tabular-nums;
}

/* ---------- 条款文档 ---------- */
.page-privacy .pv-doc {
  max-width: var(--pv-measure);
  min-width: 0;
}

.page-privacy .pv-clause {
  padding-top: clamp(26px, 3.6vw, 40px);
  border-top: 1px solid var(--sf-line);
  scroll-margin-top: calc(var(--sf-header-h-compact) + 28px);
}

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

.page-privacy .pv-clause + .pv-clause {
  margin-top: clamp(42px, 6vw, 72px);
}

.page-privacy .pv-clause__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 20px;
}

.page-privacy .pv-clause__num {
  font-family: var(--sf-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--sf-glow);
  border: 1px solid rgba(200, 255, 77, .45);
  border-radius: var(--sf-radius);
  padding: 3px 8px;
  line-height: 1.3;
  flex: none;
  font-variant-numeric: tabular-nums;
}

.page-privacy .pv-clause__title {
  margin: 0;
  font-family: var(--sf-font-display);
  font-size: clamp(21px, 3vw, 29px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.3;
  color: var(--sf-chalk);
}

.page-privacy .pv-text {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--sf-chalk);
}

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

.page-privacy .pv-text a {
  color: var(--sf-glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 77, .38);
  transition: border-color .2s ease;
}

.page-privacy .pv-text a:hover,
.page-privacy .pv-text a:focus-visible {
  border-color: var(--sf-glow);
}

/* 分类行 */
.page-privacy .pv-rows {
  display: grid;
  border-top: 1px solid var(--sf-line);
  margin: 0 0 24px;
}

.page-privacy .pv-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--sf-line);
}

.page-privacy .pv-row__label {
  margin: 0;
  font-family: var(--sf-font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.5;
  color: var(--sf-chalk);
}

.page-privacy .pv-row__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sf-silver);
}

/* 要点列表 */
.page-privacy .pv-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .pv-list > li {
  position: relative;
  padding-left: 24px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sf-chalk);
}

.page-privacy .pv-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 12px;
  height: 2px;
  background: var(--sf-amber);
}

.page-privacy .pv-list strong {
  font-weight: 600;
  color: var(--sf-chalk);
}

/* 用途条目 */
.page-privacy .pv-uses {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-privacy .pv-uses > li {
  padding-left: 16px;
  border-left: 1px solid var(--sf-line);
}

.page-privacy .pv-uses__title {
  margin: 0 0 6px;
  font-family: var(--sf-font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.5;
  color: var(--sf-chalk);
}

.page-privacy .pv-uses__body {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sf-silver);
}

/* ---------- 联系信息块 ---------- */
.page-privacy .pv-contact {
  margin: 28px 0 24px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--sf-pitch);
  border: 1px solid var(--sf-line);
  border-radius: var(--sf-radius);
}

.page-privacy .pv-contact__title {
  margin: 0 0 10px;
  font-family: var(--sf-font-display);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--sf-glow);
}

.page-privacy .pv-contact__body {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--sf-silver);
}

.page-privacy .pv-contact__list {
  margin: 0;
  display: grid;
  gap: 14px;
}

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

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

.page-privacy .pv-contact__item dt {
  font-family: var(--sf-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sf-silver);
}

.page-privacy .pv-contact__item dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--sf-chalk);
  word-break: break-word;
}

.page-privacy .pv-contact__item dd a {
  color: var(--sf-glow);
  text-decoration: none;
  font-family: var(--sf-font-mono);
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid rgba(200, 255, 77, .38);
}

.page-privacy .pv-contact__item dd a:hover,
.page-privacy .pv-contact__item dd a:focus-visible {
  border-color: var(--sf-glow);
}

/* ---------- 文档收尾 ---------- */
.page-privacy .pv-doc__foot {
  margin-top: clamp(34px, 5vw, 52px);
  padding-top: 22px;
  border-top: 1px solid var(--sf-line);
}

.page-privacy .pv-backtop {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--sf-line);
  border-radius: var(--sf-radius);
  color: var(--sf-chalk);
  text-decoration: none;
  font-family: var(--sf-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}

.page-privacy .pv-backtop:hover,
.page-privacy .pv-backtop:focus-visible {
  color: var(--sf-glow);
  border-color: var(--sf-glow);
  background: rgba(18, 60, 41, .6);
  outline: none;
}

.page-privacy .pv-backtop__icon {
  color: var(--sf-glow);
  font-size: 14px;
  line-height: 1;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-privacy .pv-row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 26px;
    padding: 20px 0;
  }

  .page-privacy .pv-contact__item {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-privacy .pv-contact__item dt {
    padding-top: 2px;
  }
}

@media (min-width: 1000px) {
  .page-privacy .pv-body__grid {
    grid-template-columns: var(--pv-index-w) minmax(0, 1fr);
    gap: var(--pv-gap);
  }

  .page-privacy .pv-index {
    position: sticky;
    top: calc(var(--sf-header-h-compact) + 32px);
    padding-left: 18px;
  }

  .page-privacy .pv-index__title {
    margin-bottom: 16px;
  }

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

  .page-privacy .pv-index__link {
    white-space: normal;
    padding: 7px 8px 7px 0;
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-index__link,
  .page-privacy .pv-crumb a,
  .page-privacy .pv-backtop,
  .page-privacy .pv-text a {
    transition: none;
  }
}
```