.page-privacy {
  --privacy-sidebar-width: 220px;
  --privacy-content-max: 860px;
  --privacy-card-bg: rgba(10, 31, 61, 0.55);
  --privacy-border-glow: 0 0 8px rgba(0, 255, 135, 0.25);
  --privacy-number-clr: var(--clr-electric-purple, #8a2be2);
  --privacy-divider-clr: var(--clr-cyber-green, #00ff87);
  --privacy-link-clr: var(--clr-bright-orange, #ff7a00);
  --privacy-index-active-clr: var(--clr-cyber-green, #00ff87);

  display: block;
  background: var(--clr-deep-blue, #0a1f3d);
  color: var(--clr-light-gray, #e0e0e0);
  font-family: var(--font-sans, 'Inter','Noto Sans SC',sans-serif);
  line-height: 1.7;
  position: relative;
  min-height: 80vh;
}

/* ===== 布局容器 ===== */
.page-privacy .privacy-layout {
  display: flex;
  gap: 2rem;
  max-width: 1240px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
  position: relative;
}

/* ===== 面包屑 ===== */
.page-privacy .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--clr-mid-gray, #888);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-privacy .breadcrumb a {
  color: var(--clr-mid-gray, #888);
  text-decoration: none;
  transition: color var(--transition, 0.25s ease);
}
.page-privacy .breadcrumb a:hover {
  color: var(--privacy-link-clr);
}
.page-privacy .breadcrumb-sep {
  color: var(--clr-mid-gray, #888);
  margin: 0 0.2rem;
}
.page-privacy .breadcrumb span[aria-current="page"] {
  color: var(--clr-light-gray, #e0e0e0);
  font-weight: 500;
}

/* ===== 侧边索引 ===== */
.page-privacy .privacy-sidebar {
  flex: 0 0 var(--privacy-sidebar-width);
  max-width: var(--privacy-sidebar-width);
  position: sticky;
  top: 80px;
  align-self: start;
  background: rgba(13, 13, 13, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(138, 43, 226, 0.25);
  border-radius: var(--border-radius, 6px);
  padding: 1.25rem 0.75rem;
  margin-top: 0.5rem;
}
.page-privacy .privacy-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.page-privacy .privacy-index-link {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 450;
  color: var(--clr-light-gray, #e0e0e0);
  text-decoration: none;
  border-radius: 4px;
  transition: all var(--transition, 0.25s ease);
  border-left: 3px solid transparent;
}
.page-privacy .privacy-index-link:hover {
  background: rgba(138, 43, 226, 0.15);
  color: var(--clr-white, #fff);
  border-left-color: var(--clr-electric-purple, #8a2be2);
}
.page-privacy .privacy-index-link:focus-visible {
  outline: 2px solid var(--privacy-index-active-clr);
  outline-offset: 2px;
}
.page-privacy .privacy-index-link.active {
  color: var(--privacy-index-active-clr);
  border-left-color: var(--privacy-index-active-clr);
  background: rgba(0, 255, 135, 0.08);
}
.page-privacy .privacy-sidebar-indicator {
  margin-top: 0.75rem;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-cyber-green, #00ff87), transparent);
  opacity: 0.4;
  border-radius: 2px;
}

/* ===== 主内容区 ===== */
.page-privacy .privacy-content {
  flex: 1;
  min-width: 0;
  max-width: var(--privacy-content-max);
}

/* ===== 头部英雄区 ===== */
.page-privacy .privacy-header {
  position: relative;
  border-radius: var(--border-radius, 6px);
  overflow: hidden;
  margin-bottom: 2.5rem;
}
.page-privacy .privacy-hero-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--border-radius, 6px);
}
.page-privacy .privacy-header-overlay {
  padding: 1.5rem 1.5rem 1rem;
  background: linear-gradient(180deg, rgba(10, 31, 61, 0.7) 0%, rgba(10, 31, 61, 0.95) 100%);
  margin-top: -4rem;
  position: relative;
  z-index: 2;
  border-radius: 0 0 var(--border-radius, 6px) var(--border-radius, 6px);
}
.page-privacy .privacy-title {
  font-family: var(--font-head, 'Inter','Noto Sans SC',sans-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--clr-white, #fff);
  margin: 0 0 0.5rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.page-privacy .privacy-subtitle {
  font-size: 1rem;
  color: var(--clr-light-gray, #e0e0e0);
  margin: 0 0 0.5rem;
  max-width: 680px;
  opacity: 0.85;
}
.page-privacy .privacy-effective {
  font-size: 0.85rem;
  color: var(--clr-mid-gray, #888);
  margin: 0;
  font-style: italic;
}

/* ===== 章节通用 ===== */
.page-privacy .privacy-section {
  margin-bottom: 2.5rem;
  scroll-margin-top: 90px;
}
.page-privacy .privacy-section-heading {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-family: var(--font-head, 'Inter','Noto Sans SC',sans-serif);
  font-size: 1.6rem;
  font-weight: 650;
  color: var(--clr-white, #fff);
  margin: 0 0 0.75rem;
  line-height: 1.3;
}
.page-privacy .section-number {
  font-family: var(--font-mono, 'JetBrains Mono',monospace);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--privacy-number-clr);
  opacity: 0.8;
  flex-shrink: 0;
}
.page-privacy .privacy-section-intro {
  font-size: 1rem;
  color: var(--clr-light-gray, #e0e0e0);
  margin: 0 0 1.25rem;
  padding-left: 2rem;
  border-left: 2px solid rgba(138, 43, 226, 0.3);
  opacity: 0.9;
}
.page-privacy .privacy-note {
  font-size: 0.9rem;
  color: var(--clr-mid-gray, #888);
  margin: 1rem 0 0;
  padding: 0.75rem 1rem;
  background: rgba(13, 13, 13, 0.3);
  border-radius: var(--border-radius, 6px);
  border-left: 3px solid rgba(0, 255, 135, 0.25);
}

/* ===== 卡片网格 ===== */
.page-privacy .privacy-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.page-privacy .privacy-card {
  background: var(--privacy-card-bg);
  border: 1px solid rgba(138, 43, 226, 0.2);
  border-radius: var(--border-radius, 6px);
  padding: 1.25rem 1.5rem;
  transition: all var(--transition, 0.25s ease);
}
.page-privacy .privacy-card:hover {
  border-color: rgba(138, 43, 226, 0.5);
  box-shadow: var(--privacy-border-glow);
  transform: translateY(-2px);
}
.page-privacy .privacy-card-title {
  font-family: var(--font-head, 'Inter','Noto Sans SC',sans-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-white, #fff);
  margin: 0 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.page-privacy .privacy-card-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--clr-cyber-green, #00ff87);
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.7;
}
.page-privacy .privacy-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-privacy .privacy-list li {
  font-size: 0.92rem;
  color: var(--clr-light-gray, #e0e0e0);
  padding-left: 1rem;
  position: relative;
  line-height: 1.6;
}
.page-privacy .privacy-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--privacy-number-clr);
  opacity: 0.5;
}

/* ===== 赛博绿分隔线 ===== */
.page-privacy .privacy-divider {
  height: 2px;
  background: linear-gradient(90deg, var(--privacy-divider-clr), rgba(0, 255, 135, 0.15), transparent);
  margin: 2rem 0 2.5rem;
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(0, 255, 135, 0.2);
  width: 100%;
}

/* ===== 联系块 ===== */
.page-privacy .privacy-contact-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  background: rgba(13, 13, 13, 0.4);
  border: 1px solid rgba(138, 43, 226, 0.2);
  border-radius: var(--border-radius, 6px);
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
}
.page-privacy .privacy-contact-item {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 0.95rem;
}
.page-privacy .privacy-contact-label {
  font-family: var(--font-mono, 'JetBrains Mono',monospace);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--privacy-number-clr);
  min-width: 60px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.8;
}
.page-privacy .privacy-contact-value {
  color: var(--clr-light-gray, #e0e0e0);
}
.page-privacy .privacy-contact-item a.privacy-contact-value {
  color: var(--privacy-link-clr);
  text-decoration: none;
  transition: color var(--transition, 0.25s ease);
}
.page-privacy .privacy-contact-item a.privacy-contact-value:hover {
  color: var(--clr-white, #fff);
  text-decoration: underline;
}

/* ===== 页脚注 ===== */
.page-privacy .privacy-footer-note {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(138, 43, 226, 0.15);
  font-size: 0.9rem;
  color: var(--clr-mid-gray, #888);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-privacy .privacy-footer-note a {
  color: var(--privacy-link-clr);
  text-decoration: none;
}
.page-privacy .privacy-footer-note a:hover {
  text-decoration: underline;
}

/* ===== 返回顶部 ===== */
.page-privacy .privacy-back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(138, 43, 226, 0.4);
  background: rgba(10, 31, 61, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--clr-cyber-green, #00ff87);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition, 0.25s ease);
  z-index: 50;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
}
.page-privacy .privacy-back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.page-privacy .privacy-back-to-top:hover {
  background: rgba(138, 43, 226, 0.25);
  border-color: var(--clr-cyber-green, #00ff87);
  transform: scale(1.08);
}
.page-privacy .privacy-back-to-top:focus-visible {
  outline: 2px solid var(--clr-cyber-green, #00ff87);
  outline-offset: 3px;
}

/* ===== 响应式：移动端优先 ===== */
@media (max-width: 767px) {
  .page-privacy .privacy-layout {
    flex-direction: column;
    padding: 1rem 0.75rem 3rem;
    gap: 1rem;
  }
  .page-privacy .privacy-sidebar {
    position: relative;
    top: 0;
    flex: none;
    max-width: 100%;
    width: 100%;
    padding: 0.75rem 0.5rem;
    margin-top: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .page-privacy .privacy-index {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 0.2rem;
    min-width: max-content;
  }
  .page-privacy .privacy-index-link {
    font-size: 0.82rem;
    padding: 0.4rem 0.6rem;
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  .page-privacy .privacy-index-link:hover {
    border-left-color: transparent;
    border-bottom-color: var(--clr-electric-purple, #8a2be2);
  }
  .page-privacy .privacy-index-link.active {
    border-left-color: transparent;
    border-bottom-color: var(--privacy-index-active-clr);
  }
  .page-privacy .privacy-sidebar-indicator {
    display: none;
  }
  .page-privacy .privacy-content {
    max-width: 100%;
  }
  .page-privacy .privacy-title {
    font-size: 1.6rem;
  }
  .page-privacy .privacy-section-heading {
    font-size: 1.3rem;
  }
  .page-privacy .section-number {
    font-size: 1rem;
  }
  .page-privacy .privacy-section-intro {
    padding-left: 1rem;
  }
  .page-privacy .privacy-card {
    padding: 1rem;
  }
  .page-privacy .privacy-card-grid {
    gap: 0.75rem;
  }
  .page-privacy .privacy-contact-block {
    padding: 1rem;
  }
  .page-privacy .privacy-contact-item {
    flex-wrap: wrap;
    gap: 0.3rem;
  }
  .page-privacy .privacy-contact-label {
    min-width: auto;
    font-size: 0.75rem;
  }
  .page-privacy .privacy-back-to-top {
    bottom: 1rem;
    right: 0.75rem;
    width: 38px;
    height: 38px;
  }
  .page-privacy .privacy-header-overlay {
    padding: 1rem 1rem 0.75rem;
    margin-top: -2.5rem;
  }
  .page-privacy .privacy-hero-img {
    height: 180px;
    object-fit: cover;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .page-privacy .privacy-sidebar {
    flex: 0 0 170px;
    max-width: 170px;
  }
  .page-privacy .privacy-title {
    font-size: 1.8rem;
  }
  .page-privacy .privacy-card-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-privacy .privacy-header-overlay {
    padding: 1.25rem 1.25rem 1rem;
  }
}

@media (min-width: 1024px) {
  .page-privacy .privacy-card-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-privacy .privacy-card-grid:has(.privacy-card:only-child) {
    grid-template-columns: 1fr;
  }
  .page-privacy .privacy-card-grid:has(.privacy-card:nth-child(2):last-child) {
    grid-template-columns: 1fr 1fr;
  }
  .page-privacy .privacy-header-overlay {
    padding: 2rem 2rem 1.25rem;
    margin-top: -5rem;
  }
  .page-privacy .privacy-title {
    font-size: 2.4rem;
  }
}

/* ===== 滚动进度条装饰（纯视觉） ===== */
.page-privacy .privacy-content::before {
  content: "";
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-cyber-green, #00ff87), var(--clr-electric-purple, #8a2be2), var(--clr-bright-orange, #ff7a00));
  opacity: 0.12;
  pointer-events: none;
  z-index: 40;
}

/* ===== 抽象数据流背景线条 ===== */
.page-privacy .privacy-content::after {
  content: "";
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: radial-gradient(ellipse at 100% 50%, rgba(138, 43, 226, 0.04), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.page-privacy .privacy-section,
.page-privacy .privacy-header,
.page-privacy .privacy-footer-note {
  position: relative;
  z-index: 1;
}
</<PAGE_CSS>>