.page-privacy {
  --privacy-sidebar-width: 280px;
  --privacy-content-max: 800px;
  --privacy-accent-line: var(--color-accent, #39FF14);
  --privacy-silver-line: var(--color-silver, #C0C0C0);
  --privacy-primary-bg: var(--color-primary, #0A1F44);
  --privacy-white: var(--color-white, #FFFFFF);
  --privacy-text: var(--color-text, #2C2C2C);
  --privacy-text-light: var(--color-text-light, #555);
  --privacy-font-mono: var(--font-mono, "SF Mono", "JetBrains Mono", "Fira Code", monospace);
  --privacy-font-body: var(--font-body, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif);
  --privacy-transition: var(--transition-fast, 0.2s);

  display: block;
  width: 100%;
  background-color: var(--privacy-white);
  color: var(--privacy-text);
  font-family: var(--privacy-font-body);
  line-height: 1.7;
}

/* ===== 整体容器 ===== */
.privacy-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: var(--site-max-width, 1280px);
  margin: 0 auto;
  min-height: 70vh;
}

/* ===== 左侧边栏 ===== */
.privacy-sidebar {
  background-color: var(--privacy-primary-bg);
  color: var(--privacy-white);
  padding: 2rem 1.5rem;
  position: relative;
  width: 100%;
}

.sidebar-sticky {
  position: relative;
  top: 0;
}

.privacy-title {
  font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: 2.25rem;
  line-height: 1.2;
  margin: 0 0 0.25rem 0;
  color: var(--privacy-white);
  letter-spacing: -0.02em;
}

.privacy-subtitle {
  font-family: var(--privacy-font-mono);
  font-size: 0.875rem;
  color: var(--privacy-accent-line);
  margin: 0 0 2rem 0;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 章节索引 */
.privacy-toc {
  margin-bottom: 2rem;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-link {
  display: inline-block;
  font-family: var(--privacy-font-mono);
  font-size: 0.875rem;
  color: var(--privacy-white);
  text-decoration: none;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
  transition: border-color var(--privacy-transition), color var(--privacy-transition);
  opacity: 0.8;
}

.toc-link:hover,
.toc-link:focus-visible {
  opacity: 1;
  border-bottom-color: var(--privacy-accent-line);
  color: var(--privacy-accent-line);
  outline: none;
}

.toc-link:focus-visible {
  outline: 2px solid var(--privacy-accent-line);
  outline-offset: 4px;
}

/* 侧栏底部版本信息 */
.sidebar-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--privacy-font-mono);
  font-size: 0.75rem;
  opacity: 0.6;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(192, 192, 192, 0.25);
}

.meta-label {
  color: var(--privacy-silver-line);
}

.meta-value {
  color: var(--privacy-white);
}

/* ===== 右侧正文区域 ===== */
.privacy-content {
  flex: 1;
  padding: 2rem 1.5rem 3rem;
  background-color: var(--privacy-white);
  position: relative;
}

.content-header {
  margin-bottom: 2.5rem;
}

.content-intro {
  font-family: var(--privacy-font-body);
  font-size: 1.05rem;
  color: var(--privacy-text);
  line-height: 1.8;
  padding: 1.25rem 1.5rem;
  background-color: #f9fafb;
  border-left: 3px solid var(--privacy-accent-line);
  border-radius: 0 4px 4px 0;
  margin: 0;
}

/* ===== 章节 ===== */
.privacy-section {
  margin-bottom: 0;
  scroll-margin-top: 1.5rem;
}

.section-heading {
  font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--privacy-primary-bg);
  margin: 0 0 1rem 0;
  position: relative;
  display: inline-block;
}

.section-heading::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background-color: var(--privacy-accent-line);
  margin-top: 0.35rem;
}

.section-body {
  font-size: 0.95rem;
  color: var(--privacy-text);
}

.section-paragraph {
  margin: 0 0 1rem 0;
  line-height: 1.8;
}

.section-paragraph.note {
  font-size: 0.875rem;
  color: var(--privacy-text-light);
  padding: 0.75rem 1rem;
  background-color: #f3f4f6;
  border-radius: 4px;
  border-left: 2px solid var(--privacy-silver-line);
}

.section-list {
  margin: 0 0 1.25rem 0;
  padding: 0 0 0 1.25rem;
  list-style: none;
}

.section-list li {
  position: relative;
  padding: 0.3rem 0 0.3rem 1rem;
  line-height: 1.7;
  font-size: 0.95rem;
}

.section-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--privacy-accent-line);
  font-family: var(--privacy-font-mono);
  font-size: 0.85rem;
}

/* ===== 分隔线 ===== */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, var(--privacy-silver-line), transparent);
  margin: 2.5rem 0;
  opacity: 0.5;
}

/* ===== 联系方式专用 ===== */
.contact-block {
  background-color: #f9fafb;
  padding: 1.5rem;
  border-radius: 6px;
}

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

.contact-list li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.contact-label {
  font-family: var(--privacy-font-mono);
  font-size: 0.8rem;
  color: var(--privacy-text-light);
  min-width: 5rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.contact-value {
  color: var(--privacy-text);
  text-decoration: none;
  transition: color var(--privacy-transition);
}

.contact-value[href]:hover,
.contact-value[href]:focus-visible {
  color: var(--privacy-accent-line);
  outline: none;
}

.contact-value[href]:focus-visible {
  outline: 2px solid var(--privacy-accent-line);
  outline-offset: 2px;
}

/* ===== 底部导航链接 ===== */
.content-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--privacy-silver-line);
}

.footer-nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-size: 0.9rem;
}

.footer-link {
  color: var(--privacy-primary-bg);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--privacy-transition);
  padding: 0.15rem 0;
  border-bottom: 1px solid transparent;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--privacy-accent-line);
  border-bottom-color: var(--privacy-accent-line);
  outline: none;
}

.footer-link:focus-visible {
  outline: 2px solid var(--privacy-accent-line);
  outline-offset: 2px;
}

.footer-link-sep {
  color: var(--privacy-silver-line);
  font-family: var(--privacy-font-mono);
  font-size: 0.85rem;
}

/* ===== 装饰图片 ===== */
.privacy-decoration {
  margin-top: 3rem;
  width: 100%;
  overflow: hidden;
  border-radius: 4px;
  opacity: 0.6;
}

.decoration-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ===== 移动端优先 ===== */
@media (max-width: 767px) {
  .privacy-sidebar {
    padding: 1.5rem 1.25rem;
  }

  .privacy-title {
    font-size: 1.75rem;
  }

  .privacy-content {
    padding: 1.5rem 1.25rem 2.5rem;
  }

  .section-heading {
    font-size: 1.3rem;
  }

  .content-intro {
    font-size: 0.95rem;
    padding: 1rem 1.25rem;
  }

  .contact-block {
    padding: 1.25rem;
  }

  .contact-list li {
    flex-direction: column;
    gap: 0.2rem;
  }

  .contact-label {
    min-width: auto;
  }

  .section-divider {
    margin: 1.75rem 0;
  }

  .footer-nav-links {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .privacy-decoration {
    margin-top: 2rem;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .privacy-container {
    flex-direction: row;
    align-items: stretch;
  }

  .privacy-sidebar {
    width: var(--privacy-sidebar-width);
    min-width: var(--privacy-sidebar-width);
    padding: 3rem 2rem;
    position: relative;
  }

  .sidebar-sticky {
    position: sticky;
    top: calc(var(--header-height, 64px) + 1.5rem);
  }

  .privacy-title {
    font-size: 2.5rem;
  }

  .privacy-content {
    flex: 1;
    padding: 3rem 3rem 4rem;
    max-width: var(--privacy-content-max);
  }

  .section-heading {
    font-size: 1.65rem;
  }

  .privacy-section {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .privacy-sidebar {
    width: calc(var(--privacy-sidebar-width) + 32px);
    min-width: calc(var(--privacy-sidebar-width) + 32px);
    padding: 3.5rem 2.5rem;
  }

  .privacy-content {
    padding: 3.5rem 4rem 5rem;
  }

  .privacy-title {
    font-size: 2.75rem;
  }

  .section-heading {
    font-size: 1.8rem;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-privacy {
    background: #fff;
    color: #000;
  }

  .privacy-sidebar {
    background: #f3f4f6;
    color: #000;
  }

  .privacy-title {
    color: #000;
  }

  .toc-link {
    color: #000;
    opacity: 1;
  }

  .privacy-decoration {
    display: none;
  }

  .section-heading::after {
    background-color: #333;
  }
}