.page-privacy {
  --privacy-body-copy: #C7D3E0;
  --privacy-line: 4px;
  --privacy-soft-bg: rgba(30, 58, 95, 0.35);
  background: var(--color-space);
  color: var(--color-paper);
  overflow-x: hidden;
}

/* 顶部区域 */
.page-privacy .privacy-masthead {
  padding: var(--page-gutter) 0 clamp(40px, 8vw, 88px);
}

.page-privacy .privacy-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(32px, 6vw, 64px);
  font-size: 13px;
  color: var(--color-cloud);
}

.page-privacy .privacy-breadcrumb a {
  color: var(--color-paper);
  text-decoration: none;
  transition: color 0.2s;
}

.page-privacy .privacy-breadcrumb a:hover {
  color: var(--color-accent);
}

.page-privacy .privacy-breadcrumb [aria-current="page"] {
  color: var(--color-cloud);
}

.page-privacy .privacy-docnum {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(84px, 16vw, 200px);
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--color-accent);
}

.page-privacy .privacy-kicker {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-cloud);
}

.page-privacy .privacy-title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(38px, 7vw, 76px);
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--color-paper);
}

.page-privacy .privacy-lead {
  margin: 24px 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.8;
  color: var(--privacy-body-copy);
}

/* 目录索引 */
.page-privacy .privacy-index {
  border-top: var(--privacy-line) solid var(--color-steel);
  border-bottom: var(--privacy-line) solid var(--color-steel);
  background: var(--privacy-soft-bg);
  padding: 18px 0;
}

.page-privacy .privacy-index-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 22px;
}

.page-privacy .privacy-index-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cloud);
}

.page-privacy .privacy-index a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.page-privacy .privacy-index a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* 正文章节 */
.page-privacy .privacy-body {
  padding-bottom: 64px;
}

.page-privacy .privacy-chapter {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: var(--privacy-line) solid var(--color-steel);
}

.page-privacy .privacy-chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.page-privacy .privacy-chapter-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-ember);
}

.page-privacy .privacy-chapter-title {
  margin: 4px 0 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.2;
  color: var(--color-paper);
}

.page-privacy .privacy-chapter-body {
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--privacy-body-copy);
}

.page-privacy .privacy-chapter-body p {
  margin: 0 0 1em;
}

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

.page-privacy .privacy-chapter-body h3 {
  margin: 24px 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  color: var(--color-paper);
}

.page-privacy .privacy-chapter-body ul,
.page-privacy .privacy-chapter-body ol {
  margin: 0 0 1.2em;
  padding-left: 1.1em;
}

.page-privacy .privacy-chapter-body li {
  margin-bottom: 0.6em;
  padding-left: 0.2em;
}

.page-privacy .privacy-chapter-body ul li::marker {
  color: var(--color-accent);
}

.page-privacy .privacy-chapter-body ol li::marker {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-ember);
}

.page-privacy .privacy-chapter-body a {
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color 0.2s, border-color 0.2s;
}

.page-privacy .privacy-chapter-body a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-privacy .privacy-note {
  margin-top: 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-cloud);
  border-left: 3px solid var(--color-steel);
  padding-left: 16px;
}

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

/* 子项双栏 */
.page-privacy .privacy-subgrid {
  display: grid;
  gap: 24px;
  margin-top: 4px;
}

.page-privacy .privacy-sub ul {
  margin-bottom: 0;
}

/* 使用目的列表 */
.page-privacy .privacy-usage-list li strong {
  color: var(--color-paper);
  font-weight: 600;
}

/* 安全措施网格 */
.page-privacy .privacy-sec-grid {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

.page-privacy .privacy-sec-item {
  border-top: 2px solid var(--color-steel);
  padding-top: 14px;
}

.page-privacy .privacy-sec-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-privacy .privacy-sec-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--privacy-body-copy);
}

/* 数据流视觉 */
.page-privacy .privacy-visual {
  margin-top: 48px;
  aspect-ratio: 4 / 1;
  overflow: hidden;
  border: var(--privacy-line) solid var(--color-steel);
}

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

/* 返回顶部 */
.page-privacy .privacy-backtop-wrap {
  margin-top: 28px;
  text-align: right;
}

.page-privacy .privacy-backtop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-paper);
  text-decoration: none;
  border: 2px solid var(--color-steel);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.page-privacy .privacy-backtop:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(57, 255, 20, 0.06);
}

/* 平板及以上 */
@media (min-width: 768px) {
  .page-privacy .privacy-masthead {
    padding-bottom: clamp(56px, 8vw, 96px);
  }

  .page-privacy .privacy-masthead-grid {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) 1.6fr;
    gap: clamp(32px, 6vw, 88px);
    align-items: end;
  }

  .page-privacy .privacy-docnum {
    font-size: clamp(120px, 18vw, 220px);
  }

  .page-privacy .privacy-kicker {
    margin-top: 0;
  }

  .page-privacy .privacy-subgrid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .page-privacy .privacy-sec-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-privacy .privacy-sec-item p {
    font-size: 15px;
  }
}

/* 大桌面优化 */
@media (min-width: 1080px) {
  .page-privacy .privacy-masthead {
    padding-top: 96px;
  }

  .page-privacy .privacy-title {
    font-size: 76px;
  }

  .page-privacy .privacy-chapter-body {
    font-size: 16px;
  }
}