/* ============================================================
   数据保护页 · 长文阅读布局
   作用域：.page-privacy
   ============================================================ */

.page-privacy {
  --pp-rail: 248px;
  --pp-measure: 760px;
  --pp-gap: 48px;
  padding-bottom: 96px;
}

/* ---------- 封面 ---------- */

.page-privacy .privacy-cover {
  position: relative;
  overflow: hidden;
  padding: 32px 0 52px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(56, 232, 212, 0.13), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 90, 43, 0.09), transparent 62%),
    linear-gradient(180deg, var(--ink-900), var(--ink-950));
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-deep) 45%, var(--orange) 100%);
}

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

.page-privacy .privacy-cover__title {
  margin: 14px 0 18px;
  max-width: 900px;
  font-size: clamp(27px, 4.4vw, 48px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-privacy .privacy-cover__lede {
  max-width: 64ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .privacy-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.page-privacy .privacy-cover__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-privacy .privacy-cover__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.94;
}

/* ---------- 双栏主体 ---------- */

.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: 40px;
}

.page-privacy .privacy-rail {
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-privacy .privacy-rail__title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .privacy-rail .toc {
  display: grid;
  gap: 2px;
}

.page-privacy .privacy-rail .toc__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 10px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .privacy-rail .toc__link:hover {
  color: var(--text);
  background: var(--ink-800);
}

.page-privacy .privacy-rail .toc__link.is-active {
  color: var(--text);
  background: var(--ink-800);
  border-left-color: var(--cyan);
}

.page-privacy .privacy-rail .toc__link .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-privacy .privacy-rail .toc__link.is-active .mono {
  color: var(--orange);
}

.page-privacy .privacy-rail__tools {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

/* ---------- 正文窄栏 ---------- */

.page-privacy .privacy-prose {
  max-width: var(--pp-measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-privacy .privacy-sec {
  margin: 0 0 64px;
  scroll-margin-top: calc(var(--head-h) + 24px);
}

.page-privacy .privacy-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 18px;
  padding-bottom: 12px;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: 0.03em;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-sec__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-privacy .privacy-prose p {
  margin: 0 0 16px;
  color: var(--muted);
}

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

/* ---------- 四类信息的定义列表 ---------- */

.page-privacy .privacy-defs {
  margin: 0 0 8px;
}

.page-privacy .privacy-defs__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-privacy .privacy-defs__row dt {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-privacy .privacy-defs__row dt .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-privacy .privacy-defs__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 条目列表 ---------- */

.page-privacy .privacy-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 11px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-deep));
}

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

/* ---------- 重点条款块 ---------- */

.page-privacy .privacy-callout {
  margin: 22px 0 0;
  padding: 18px 20px;
  background: var(--paper);
  color: var(--paper-soft);
  border-left: 4px solid var(--orange);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-privacy .privacy-callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-soft);
}

.page-privacy .privacy-callout strong {
  color: var(--paper-ink);
  font-weight: 700;
}

/* ---------- 术语提示 ---------- */

.page-privacy .privacy-term {
  border-bottom: 1px dashed var(--cyan-deep);
  cursor: help;
  text-decoration: none;
  color: var(--text);
}

/* ---------- 保留期限表格 ---------- */

.page-privacy .privacy-table-wrap {
  margin: 0 0 22px;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

.page-privacy .privacy-table__caption {
  padding: 12px 14px 0;
  text-align: left;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-privacy .privacy-table-wrap .data-table {
  min-width: 580px;
}

.page-privacy .privacy-table-wrap .data-table th[scope="row"] {
  font-weight: 700;
  color: var(--text);
}

.page-privacy .privacy-table-wrap .data-table td {
  color: var(--muted);
}

/* ---------- 相关说明 ---------- */

.page-privacy .privacy-foot {
  margin-top: 8px;
  padding-top: 40px;
  border-top: 2px solid var(--line);
}

.page-privacy .privacy-foot__title {
  margin: 0 0 20px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-privacy .privacy-foot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-privacy .privacy-foot__link {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  color: var(--muted);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .privacy-foot__link:hover,
.page-privacy .privacy-foot__link:focus-visible {
  background: var(--ink-800);
  border-color: var(--cyan-deep);
  transform: translateY(-2px);
}

.page-privacy .privacy-foot__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-privacy .privacy-foot__link strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-privacy .privacy-foot__link span:last-child {
  font-size: 14px;
  line-height: 1.7;
}

.page-privacy .privacy-foot__tools {
  margin-top: 26px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 700px) {
  .page-privacy .privacy-defs__row {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-privacy .privacy-cover {
    padding: 44px 0 64px;
  }

  .page-privacy .privacy-body {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    gap: var(--pp-gap);
    padding-top: 64px;
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--head-h) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--head-h) - 48px);
    overflow-y: auto;
  }

  .page-privacy .privacy-sec {
    margin-bottom: 88px;
  }
}

@media (min-width: 1200px) {
  .page-privacy .privacy-foot__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-foot__link,
  .page-privacy .privacy-rail .toc__link {
    transition: none;
  }

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