.page-privacy {
  --privacy-bg-gradient: linear-gradient(135deg, #0B1D3A 0%, #1A2A4A 100%);
  --privacy-accent-bar: #FF6B35;
  --privacy-toc-bg: #0F2345;
  --privacy-toc-active: #00C896;
  --privacy-section-gap: 3rem;
  --privacy-text-light: #E0E6ED;
  --privacy-text-muted: #8899AA;
  --privacy-border-light: #2A3F66;
  --privacy-number-color: #FF6B35;
  --privacy-font-heading: 'Anton', sans-serif;
  --privacy-font-body: 'Roboto Slab', serif;

  all: initial;
  display: block;
  background: var(--privacy-bg-gradient);
  color: var(--privacy-text-light);
  font-family: var(--privacy-font-body);
  font-weight: 300;
  line-height: 1.6;
  position: relative;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* 背景纹理（通过伪元素实现抽象网络安全网格） */
.page-privacy::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 30% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 30% 50%, black 20%, transparent 70%);
}

/* 背景图片占位已移除，仅保留纹理 */
.page-privacy::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image: none;
}

/* 所有内容置于上层 */
.privacy-layout {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  gap: 2rem;
}

/* 左侧目录导航 */
.privacy-toc {
  flex-shrink: 0;
}

.toc-sticky {
  position: sticky;
  top: 2rem;
  background: var(--privacy-toc-bg);
  border: 4px solid var(--privacy-border-light);
  box-shadow: 8px 8px 0 rgba(0,0,0,0.4);
  padding: 1.5rem 1.25rem;
}

.toc-title {
  font-family: var(--privacy-font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--privacy-accent-bar);
  margin: 0 0 1rem 0;
  padding-bottom: 0.75rem;
  border-bottom: 4px solid var(--privacy-border-light);
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.toc-link {
  display: block;
  padding: 0.5rem 0.5rem 0.5rem 1rem;
  font-family: var(--privacy-font-body);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--privacy-text-muted);
  text-decoration: none;
  border-left: 4px solid transparent;
  transition: all var(--transition);
}

.toc-link:hover,
.toc-link:focus-visible {
  color: var(--privacy-text-light);
  border-left-color: var(--privacy-accent-bar);
  padding-left: 1.25rem;
  outline: none;
}

/* 右侧内容区 */
.privacy-content {
  flex: 1;
  min-width: 0;
}

.privacy-header-block {
  margin-bottom: 2.5rem;
}

.privacy-h1 {
  font-family: var(--privacy-font-heading);
  font-size: 2.8rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--privacy-text-light);
  margin: 0 0 0.5rem 0;
  line-height: 1.1;
}

.privacy-updated {
  font-family: var(--privacy-font-body);
  font-size: 0.875rem;
  color: var(--privacy-text-muted);
  margin: 0 0 1.25rem 0;
}

.privacy-intro {
  font-size: 1.05rem;
  line-height: 1.7;
  padding: 0 0 1.25rem 0;
  border-bottom: 4px solid var(--privacy-border-light);
}

/* 章节样式 */
.privacy-section {
  margin-bottom: var(--privacy-section-gap);
}

.privacy-section-h2 {
  font-family: var(--privacy-font-heading);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--privacy-text-light);
  margin: 0 0 1rem 0;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  border-left: 6px solid var(--privacy-accent-bar);
  padding-left: 1rem;
}

.section-number {
  font-family: var(--privacy-font-heading);
  font-size: 1.5rem;
  color: var(--privacy-number-color);
  flex-shrink: 0;
}

.privacy-section p {
  margin: 0 0 1rem 0;
}

.privacy-list {
  list-style: none;
  margin: 0 0 1rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.privacy-list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.6;
}

.privacy-list li::before {
  content: '';
  position: absolute;
  top: 0.6em;
  left: 0;
  width: 0.6rem;
  height: 0.6rem;
  background: var(--privacy-accent-bar);
  transform: rotate(45deg);
}

.privacy-list li strong {
  font-weight: 400;
  color: var(--privacy-accent-bar);
}

.privacy-link {
  color: var(--privacy-toc-active);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.privacy-link:hover,
.privacy-link:focus-visible {
  color: var(--privacy-accent-bar);
  outline: none;
}

.privacy-contact-note {
  margin-top: 0.5rem;
}

/* 页脚说明 */
.privacy-footer-note {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 4px solid var(--privacy-border-light);
}

.privacy-footer-text {
  font-size: 0.875rem;
  color: var(--privacy-text-muted);
  text-align: center;
  margin: 0;
}

/* ========== 桌面端布局 ========== */
@media (min-width: 768px) {
  .privacy-layout {
    flex-direction: row;
    padding: 2rem 2rem 4rem;
    gap: 3rem;
  }

  .privacy-toc {
    width: 200px;
    flex-shrink: 0;
  }

  .privacy-content {
    max-width: 780px;
  }

  .privacy-h1 {
    font-size: 3rem;
  }

  .privacy-section-h2 {
    font-size: 2rem;
  }

  .section-number {
    font-size: 1.75rem;
  }
}

@media (min-width: 1024px) {
  .privacy-layout {
    padding-top: 3rem;
  }

  .privacy-toc {
    width: 220px;
  }
}