.page-privacy {
  --page-privacy-number-size: 2rem;
  --page-privacy-number-bg: #003D7A;
  --page-privacy-number-color: #F0F4F8;
  --page-privacy-accent-line: #FFD700;

  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: var(--spacing-xl, 2rem) var(--spacing-md, 1rem);
  color: var(--color-text-primary, #F0F4F8);
  font-family: var(--font-body, 'Inter', 'Microsoft YaHei', sans-serif);
  line-height: 1.7;
}

.page-privacy .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--size-sm, 0.875rem);
  color: var(--color-text-secondary, #A0B0C0);
  margin-bottom: var(--spacing-lg, 1.5rem);
  flex-wrap: wrap;
}

.page-privacy .breadcrumb__link {
  color: var(--color-secondary, #FF6B35);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s);
}

.page-privacy .breadcrumb__link:hover,
.page-privacy .breadcrumb__link:focus-visible {
  color: var(--color-secondary-hover, #e85a2a);
  text-decoration: underline;
}

.page-privacy .breadcrumb__sep {
  color: var(--color-text-secondary, #A0B0C0);
}

.page-privacy .breadcrumb__current {
  color: var(--color-text-primary, #F0F4F8);
  font-weight: var(--weight-bold, 700);
}

.page-privacy__title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  font-family: var(--font-heading, 'Inter', 'Microsoft YaHei', sans-serif);
  font-weight: var(--weight-heading, 800);
  font-size: clamp(var(--size-2xl, 2rem), 5vw, var(--size-4xl, 3rem));
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 var(--spacing-md, 1rem) 0;
  color: var(--color-text-primary, #F0F4F8);
}

.page-privacy__title-icon {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
}

.page-privacy__intro {
  font-size: var(--size-lg, 1.25rem);
  color: var(--color-text-secondary, #A0B0C0);
  margin: 0 0 var(--spacing-xl, 2rem) 0;
  max-width: 48rem;
  border-left: 3px solid var(--color-accent, #FFD700);
  padding-left: var(--spacing-md, 1rem);
}

.page-privacy__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-2xl, 3rem);
  padding: var(--spacing-md, 1rem) var(--spacing-lg, 1.5rem);
  background-color: var(--color-bg-medium, #1A2332);
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--color-border, #3A4A5A);
}

.page-privacy__nav-label {
  font-size: var(--size-sm, 0.875rem);
  font-weight: var(--weight-bold, 700);
  color: var(--color-text-primary, #F0F4F8);
  white-space: nowrap;
}

.page-privacy__nav-link {
  font-size: var(--size-sm, 0.875rem);
  font-weight: var(--weight-medium, 500);
  color: var(--color-secondary, #FF6B35);
  text-decoration: none;
  padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
  border-radius: var(--radius-sm, 4px);
  transition: background-color var(--transition-fast, 0.2s), color var(--transition-fast, 0.2s);
  white-space: nowrap;
}

.page-privacy__nav-link:hover,
.page-privacy__nav-link:focus-visible {
  background-color: var(--color-bg-light, #2C3A4A);
  color: var(--color-secondary-hover, #e85a2a);
}

/* 章节卡片 */
.page-privacy__chapter {
  margin-bottom: var(--spacing-xl, 2rem);
  padding: var(--spacing-lg, 1.5rem) var(--spacing-md, 1rem);
  background-color: var(--color-bg-medium, #1A2332);
  border: 1px solid var(--color-border, #3A4A5A);
  border-radius: var(--radius-lg, 12px);
  position: relative;
  overflow: hidden;
}

.page-privacy__chapter::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--page-privacy-number-bg, #003D7A);
  border-radius: 0 var(--radius-sm, 4px) var(--radius-sm, 4px) 0;
}

.page-privacy__chapter-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-md, 1rem);
}

.page-privacy__chapter-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--page-privacy-number-size);
  height: var(--page-privacy-number-size);
  background-color: var(--page-privacy-number-bg, #003D7A);
  color: var(--page-privacy-number-color, #F0F4F8);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-weight: var(--weight-bold, 700);
  font-size: var(--size-sm, 0.875rem);
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--page-privacy-accent-line, #FFD700);
}

.page-privacy__chapter-title {
  font-family: var(--font-heading, 'Inter', 'Microsoft YaHei', sans-serif);
  font-weight: var(--weight-bold, 700);
  font-size: var(--size-xl, 1.5rem);
  margin: 0;
  color: var(--color-text-primary, #F0F4F8);
}

.page-privacy__chapter-body {
  font-size: var(--size-base, 1rem);
  color: var(--color-text-secondary, #A0B0C0);
}

.page-privacy__chapter-body p {
  margin: 0 0 var(--spacing-sm, 0.5rem) 0;
}

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

.page-privacy__list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-sm, 0.5rem) 0 var(--spacing-md, 1rem) 0;
}

.page-privacy__list li {
  position: relative;
  padding-left: var(--spacing-lg, 1.5rem);
  margin-bottom: var(--spacing-xs, 0.25rem);
  line-height: 1.6;
}

.page-privacy__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background-color: var(--page-privacy-accent-line, #FFD700);
  border-radius: 50%;
}

.page-privacy__list--contact li::before {
  background-color: var(--color-secondary, #FF6B35);
}

.page-privacy__link {
  color: var(--color-secondary, #FF6B35);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast, 0.2s);
}

.page-privacy__link:hover,
.page-privacy__link:focus-visible {
  color: var(--color-secondary-hover, #e85a2a);
}

.page-privacy__note {
  font-size: var(--size-sm, 0.875rem);
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
  background-color: rgba(255, 107, 53, 0.1);
  border-left: 3px solid var(--color-secondary, #FF6B35);
  border-radius: 0 var(--radius-sm, 4px) var(--radius-sm, 4px) 0;
  margin: var(--spacing-md, 1rem) 0;
}

.page-privacy__note--small {
  font-size: var(--size-xs, 0.75rem);
  padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
}

.page-privacy__chapter-image {
  margin-top: var(--spacing-sm, 0.5rem);
}

.page-privacy__inline-icon {
  width: 32px;
  height: 32px;
  display: inline-block;
  vertical-align: middle;
  object-fit: contain;
}

.page-privacy__chapter--contact {
  border-color: var(--color-secondary, #FF6B35);
}

.page-privacy__chapter--contact::before {
  background-color: var(--color-secondary, #FF6B35);
}

.page-privacy__bottom-visual {
  margin-top: var(--spacing-2xl, 3rem);
  border-top: 2px solid var(--page-privacy-accent-line, #FFD700);
  padding-top: var(--spacing-lg, 1.5rem);
  display: flex;
  justify-content: center;
}

.page-privacy__bottom-img {
  border-radius: var(--radius-md, 8px);
  max-width: 100%;
  height: auto;
  object-fit: contain;
  opacity: 0.8;
  transition: opacity var(--transition-base, 0.3s);
}

.page-privacy__bottom-img:hover {
  opacity: 1;
}

/* 响应式：移动优先基础已覆盖，桌面增强 */
@media (min-width: 768px) {
  .page-privacy {
    padding: var(--spacing-2xl, 3rem) var(--spacing-xl, 2rem);
  }

  .page-privacy__chapter {
    padding: var(--spacing-xl, 2rem);
  }

  .page-privacy__chapter-header {
    margin-bottom: var(--spacing-lg, 1.5rem);
  }

  .page-privacy__chapter-title {
    font-size: var(--size-2xl, 2rem);
  }

  .page-privacy__nav {
    padding: var(--spacing-md, 1rem) var(--spacing-xl, 2rem);
  }

  .page-privacy__bottom-img {
    width: 100%;
    max-width: 800px;
  }
}

@media (min-width: 1024px) {
  .page-privacy__chapter {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-lg, 1.5rem);
    align-items: start;
  }

  .page-privacy__chapter-header {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 0;
  }

  .page-privacy__chapter-number {
    width: 2.5rem;
    height: 2.5rem;
    font-size: var(--size-base, 1rem);
  }

  .page-privacy__chapter-title {
    font-size: var(--size-xl, 1.5rem);
  }

  .page-privacy__chapter-body {
    border-left: 1px solid var(--color-border, #3A4A5A);
    padding-left: var(--spacing-lg, 1.5rem);
  }
}