.page-privacy {
  --privacy-index-w: 244px;
  --privacy-body-text: rgba(233, 239, 250, 0.86);
  --privacy-panel-soft: rgba(22, 34, 74, 0.55);
}

/* ---------- 顶部 ---------- */
.page-privacy .privacy-hero {
  padding-top: 20px;
  padding-bottom: 8px;
}

.page-privacy .breadcrumb {
  margin-bottom: 18px;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  display: grid;
  gap: 24px;
  padding: 22px 18px 26px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(255, 61, 154, 0.18), transparent 62%),
    linear-gradient(150deg, rgba(13, 21, 48, 0.96), rgba(6, 10, 24, 0.96));
  box-shadow: var(--hard);
  overflow: hidden;
}

.page-privacy .privacy-hero__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta) 55%, var(--gold));
}

.page-privacy .privacy-hero__title {
  margin: 10px 0 14px;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--white);
  text-shadow: 0 0 22px rgba(34, 230, 210, 0.28);
}

.page-privacy .privacy-hero__lead {
  max-width: 60ch;
  margin: 0 0 18px;
  color: var(--privacy-body-text);
  font-size: 16px;
  line-height: 1.85;
}

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

.page-privacy .privacy-hero__chips li {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(34, 230, 210, 0.08);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-privacy .privacy-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 2px solid var(--line);
  border-radius: var(--radius-sm);
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

/* ---------- 主体两栏 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  gap: 26px;
  padding-top: 34px;
  padding-bottom: 84px;
}

/* ---------- 索引 ---------- */
.page-privacy .privacy-index {
  padding: 16px 14px 14px;
  border: 2px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--privacy-panel-soft);
}

.page-privacy .privacy-index__title {
  margin: 0 0 12px;
  padding-left: 10px;
  border-left: 3px solid var(--magenta);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-privacy .privacy-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 10px 9px 12px;
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-privacy .privacy-index__link .mono {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-privacy .privacy-index__link:hover,
.page-privacy .privacy-index__link:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(34, 230, 210, 0.1);
  transform: translateX(3px);
}

.page-privacy .privacy-index__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
}

/* ---------- 正文 ---------- */
.page-privacy .privacy-body {
  min-width: 0;
}

.page-privacy .privacy-sec {
  padding: 26px 0 30px;
  border-top: 1px solid var(--line-soft);
}

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

.page-privacy .privacy-sec__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.page-privacy .privacy-sec__num {
  flex: none;
  padding: 3px 9px;
  border: 1px solid rgba(255, 194, 75, 0.55);
  border-radius: 6px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.page-privacy .privacy-sec__title {
  margin: 0;
  color: var(--white);
  font-size: clamp(19px, 3.6vw, 25px);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-summary {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--cyan);
  color: var(--white);
  font-size: 16.5px;
  line-height: 1.75;
}

.page-privacy .privacy-body p {
  max-width: 68ch;
  margin: 0 0 14px;
  color: var(--privacy-body-text);
  line-height: 1.85;
}

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

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

.page-privacy .privacy-body a:hover,
.page-privacy .privacy-body a:focus-visible {
  color: var(--gold);
}

/* ---------- 列表 ---------- */
.page-privacy .privacy-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 18px;
  color: var(--privacy-body-text);
  font-size: 15px;
  line-height: 1.8;
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-privacy .privacy-list--lg li {
  font-size: 15.5px;
}

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

/* ---------- 三类信息卡 ---------- */
.page-privacy .privacy-groups {
  display: grid;
  gap: 14px;
  margin: 18px 0 20px;
}

.page-privacy .privacy-group {
  position: relative;
  padding: 18px 16px 16px;
  border: 2px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--privacy-panel-soft);
  box-shadow: var(--hard);
}

.page-privacy .privacy-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 14px;
  right: 14px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}

.page-privacy .privacy-group__title {
  margin: 0 0 12px;
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* ---------- 用途定义列表 ---------- */
.page-privacy .privacy-uses {
  display: grid;
  gap: 0;
  margin: 18px 0 0;
}

.page-privacy .privacy-use {
  padding: 15px 0;
  border-top: 1px dashed var(--line-soft);
}

.page-privacy .privacy-use:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-privacy .privacy-use dt {
  margin-bottom: 6px;
  color: var(--cyan);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-privacy .privacy-use dd {
  margin: 0;
  max-width: 68ch;
  color: var(--privacy-body-text);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 引用块 ---------- */
.page-privacy .privacy-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  background: rgba(13, 21, 48, 0.7);
}

.page-privacy .privacy-note--warn {
  border-left-color: var(--warn);
}

.page-privacy .privacy-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-privacy .privacy-note .privacy-note__key {
  margin-bottom: 6px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-privacy .privacy-note--warn .privacy-note__key {
  color: var(--warn);
}

/* ---------- 折叠补充 ---------- */
.page-privacy .privacy-more {
  margin-top: 6px;
}

.page-privacy .privacy-more .accordion__item {
  margin-bottom: 8px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(13, 21, 48, 0.72);
  overflow: hidden;
}

.page-privacy .privacy-more .accordion__btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  color: var(--white);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .privacy-more .accordion__num {
  flex: none;
  color: var(--magenta);
  font-size: 12px;
}

.page-privacy .privacy-more .accordion__btn > span:nth-child(2) {
  flex: 1 1 auto;
  min-width: 0;
}

.page-privacy .privacy-more .accordion__arrow {
  flex: none;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease);
}

.page-privacy .privacy-more .accordion__item[open] .accordion__arrow {
  transform: rotate(-135deg);
}

.page-privacy .privacy-more .accordion__panel {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

.page-privacy .privacy-more .accordion__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 四项权利 ---------- */
.page-privacy .privacy-acts {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: privacy-act;
}

.page-privacy .privacy-act {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 2px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--privacy-panel-soft);
}

.page-privacy .privacy-act__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--cyan);
  border-radius: 8px;
  color: var(--cyan);
  font-size: 15px;
  font-weight: 600;
}

.page-privacy .privacy-act p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 联系方式块 ---------- */
.page-privacy .privacy-contact {
  margin-top: 22px;
  padding: 20px 18px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(110% 100% at 0% 0%, rgba(34, 230, 210, 0.14), transparent 60%),
    linear-gradient(160deg, rgba(22, 34, 74, 0.9), rgba(6, 10, 24, 0.92));
  box-shadow: var(--hard);
}

.page-privacy .privacy-contact__text {
  margin: 0 0 10px;
  color: var(--white);
  font-size: 15px;
  line-height: 1.8;
}

.page-privacy .privacy-contact__mail {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: clamp(17px, 4.4vw, 22px);
  font-weight: 600;
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-privacy .privacy-contact__meta {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 收尾 ---------- */
.page-privacy .privacy-tail {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-tail p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 回到顶部 ---------- */
.page-privacy .privacy-top {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border: 2px solid var(--cyan);
  border-radius: 999px;
  background: rgba(6, 10, 24, 0.88);
  color: var(--cyan);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  background: var(--cyan);
  color: var(--ink);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-privacy .privacy-hero {
    padding-top: 28px;
  }

  .page-privacy .privacy-hero__inner {
    padding: 30px 28px 34px;
  }

  .page-privacy .privacy-groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

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

  .page-privacy .privacy-use:nth-child(2) {
    border-top: 0;
    padding-top: 4px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-privacy .privacy-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 40px;
    align-items: center;
    padding: 40px 36px 42px;
  }

  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-index-w) minmax(0, 1fr);
    gap: 52px;
    padding-top: 52px;
    padding-bottom: 110px;
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }

  .page-privacy .privacy-sec {
    padding: 34px 0 40px;
  }

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

  .page-privacy .privacy-top {
    right: 28px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-index__link,
  .page-privacy .privacy-top,
  .page-privacy .privacy-more .accordion__arrow {
    transition: none;
  }

  .page-privacy .privacy-index__link:hover,
  .page-privacy .privacy-index__link:focus-visible {
    transform: none;
  }
}

已按要求输出主体 HTML 与页面专属 CSS，全部选择器限定在 `.page-privacy` 作用域内。