.page-privacy {
  --privacy-bg: var(--color-secondary, #F5F5F5);
  --privacy-text: var(--color-text-dark, #1A3E6B);
  --privacy-accent: var(--color-accent2, #FFD700);
  --privacy-primary: var(--color-primary, #1A3E6B);
  --privacy-border: var(--color-border-rule, #D32F2F);
  --privacy-neutral: var(--color-neutral1, #8B8682);
  --privacy-gold-light: rgba(255, 215, 0, 0.12);
  --privacy-shadow: 0 2px 12px rgba(13, 27, 42, 0.06);

  display: block;
  width: 100%;
  max-width: 100%;
  background: var(--privacy-bg);
  color: var(--privacy-text);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: var(--fs-body, 1rem);
  line-height: var(--lh-body, 1.8);
  letter-spacing: var(--ls-body, 0.05em);
}

/* ===== 横幅区域 ===== */
.page-privacy__banner {
  position: relative;
  width: 100%;
  height: auto;
  min-height: 220px;
  overflow: hidden;
  background: var(--privacy-primary);
}

.page-privacy__banner-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  object-position: center 30%;
  min-height: 220px;
  opacity: 0.35;
}

.page-privacy__banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 27, 42, 0.75) 0%, rgba(26, 62, 107, 0.55) 100%);
  pointer-events: none;
}

.page-privacy__banner-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: var(--space-lg, 2.5rem) var(--space-md, 1.25rem);
  color: var(--color-text-light, #F5F5F5);
  pointer-events: none;
}

.page-privacy__banner-content .section-number {
  font-family: var(--font-accent, 'Oswald', sans-serif);
  font-size: clamp(0.85rem, 1.6vw, 1.25rem);
  font-weight: var(--fw-bold, 600);
  color: var(--privacy-accent);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs, 0.35rem);
  opacity: 0.9;
}

.page-privacy__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-xl, clamp(2.5rem, 5vw, 4.5rem));
  font-weight: var(--fw-heading, 700);
  font-style: italic;
  letter-spacing: var(--ls-heading, -0.5px);
  margin: 0 0 var(--space-xs, 0.35rem);
  line-height: 1.1;
  color: #fff;
}

.page-privacy__subtitle {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  font-weight: var(--fw-bold, 600);
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 var(--space-sm, 0.65rem);
  letter-spacing: 0.06em;
}

.page-privacy__meta {
  font-size: var(--fs-small, 0.85rem);
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  margin: 0;
  letter-spacing: 0.04em;
}

/* ===== 布局容器 ===== */
.page-privacy__layout {
  display: flex;
  flex-direction: column;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: var(--space-lg, 2.5rem) var(--space-md, 1.25rem) var(--space-2xl, 6rem);
  gap: var(--space-lg, 2.5rem);
}

/* ===== 目录 ===== */
.page-privacy__toc {
  position: relative;
  flex-shrink: 0;
  width: 100%;
  background: #fff;
  border: 1px solid rgba(139, 134, 130, 0.2);
  border-radius: var(--radius-md, 4px);
  padding: var(--space-md, 1.25rem);
  box-shadow: var(--privacy-shadow);
}

.page-privacy__toc-label {
  display: block;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-small, 0.85rem);
  font-weight: var(--fw-bold, 600);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--privacy-neutral);
  margin-bottom: var(--space-sm, 0.65rem);
  border-bottom: 1px solid rgba(139, 134, 130, 0.15);
  padding-bottom: var(--space-xs, 0.35rem);
}

.page-privacy__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm, 0.65rem);
}

.page-privacy__toc-link {
  display: block;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: var(--fs-body, 1rem);
  color: var(--privacy-primary);
  text-decoration: none;
  padding: var(--space-xs, 0.35rem) 0 var(--space-xs, 0.35rem) var(--space-sm, 0.65rem);
  border-left: 3px solid transparent;
  transition: border-color var(--transition-fast, 0.2s ease), color var(--transition-fast, 0.2s ease);
  letter-spacing: 0.02em;
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  border-left-color: var(--privacy-accent);
  color: var(--privacy-accent);
  outline: none;
}

/* ===== 内容区域 ===== */
.page-privacy__content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl, 4rem);
}

/* ===== 章节卡片 ===== */
.page-privacy__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-md, 1.25rem);
  position: relative;
  padding: var(--space-md, 1.25rem) 0;
  border-bottom: 1px solid rgba(139, 134, 130, 0.1);
}

.page-privacy__section:last-of-type {
  border-bottom: none;
}

.page-privacy__section-num {
  font-family: var(--font-accent, 'Oswald', sans-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--fw-heading, 700);
  font-style: italic;
  color: var(--privacy-primary);
  opacity: 0.12;
  line-height: 1;
  letter-spacing: -1px;
  flex-shrink: 0;
}

.page-privacy__section-body {
  flex: 1;
}

.page-privacy__section-heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-md, clamp(1.25rem, 2.5vw, 1.75rem));
  font-weight: var(--fw-heading, 700);
  font-style: italic;
  letter-spacing: var(--ls-heading, -0.5px);
  color: var(--privacy-primary);
  margin: 0 0 var(--space-md, 1.25rem);
  line-height: 1.3;
  position: relative;
  padding-left: 0;
}

.page-privacy__section-heading::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.3em;
  width: 3px;
  height: 1.2em;
  background: var(--privacy-accent);
  display: none;
}

.page-privacy__section-text {
  margin: 0 0 var(--space-md, 1.25rem);
  color: var(--privacy-text);
  font-size: var(--fs-body, 1rem);
  letter-spacing: var(--ls-body, 0.05em);
  max-width: 72ch;
}

.page-privacy__section-text:last-child {
  margin-bottom: 0;
}

/* ===== 高亮提示 ===== */
.page-privacy__highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm, 0.65rem);
  background: var(--privacy-gold-light);
  border-left: 4px solid var(--privacy-accent);
  padding: var(--space-md, 1.25rem);
  margin-top: var(--space-lg, 2.5rem);
  border-radius: 0 var(--radius-sm, 2px) var(--radius-sm, 2px) 0;
}

.page-privacy__highlight--caution {
  background: rgba(211, 47, 47, 0.06);
  border-left-color: var(--privacy-border, #D32F2F);
}

.page-privacy__highlight-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  line-height: 1.6;
  color: var(--privacy-accent);
}

.page-privacy__highlight--caution .page-privacy__highlight-icon {
  color: var(--privacy-border, #D32F2F);
}

.page-privacy__highlight-text {
  margin: 0;
  font-size: var(--fs-small, 0.85rem);
  color: var(--privacy-text);
  letter-spacing: 0.03em;
  line-height: 1.7;
}

/* ===== 联系卡片 ===== */
.page-privacy__contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-md, 1.25rem);
  background: var(--privacy-primary);
  color: var(--color-text-light, #F5F5F5);
  padding: var(--space-lg, 2.5rem) var(--space-md, 1.25rem);
  border-radius: var(--radius-md, 4px);
  margin-top: var(--space-lg, 2.5rem);
  position: relative;
  box-shadow: 0 4px 20px rgba(13, 27, 42, 0.15);
}

.page-privacy__contact-num {
  font-family: var(--font-accent, 'Oswald', sans-serif);
  font-size: var(--fs-small, 0.85rem);
  color: var(--privacy-accent);
  opacity: 0.6;
  letter-spacing: 0.1em;
}

.page-privacy__contact-body {
  flex: 1;
}

.page-privacy__contact-heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-md, clamp(1.25rem, 2.5vw, 1.75rem));
  font-weight: var(--fw-heading, 700);
  font-style: italic;
  letter-spacing: var(--ls-heading, -0.5px);
  margin: 0 0 var(--space-sm, 0.65rem);
  color: #fff;
}

.page-privacy__contact-text {
  margin: 0 0 var(--space-md, 1.25rem);
  font-size: var(--fs-body, 1rem);
  opacity: 0.85;
  letter-spacing: var(--ls-body, 0.05em);
}

.page-privacy__contact-list {
  list-style: none;
  margin: 0 0 var(--space-md, 1.25rem);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm, 0.65rem);
}

.page-privacy__contact-list li {
  font-size: var(--fs-body, 1rem);
  opacity: 0.9;
  letter-spacing: 0.02em;
}

.page-privacy__contact-list li strong {
  color: var(--privacy-accent);
  font-weight: var(--fw-bold, 600);
}

.page-privacy__contact-note {
  margin: 0;
  font-size: var(--fs-small, 0.85rem);
  opacity: 0.7;
  line-height: 1.7;
}

.page-privacy__link {
  color: var(--privacy-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(255, 215, 0, 0.4);
  transition: color var(--transition-fast, 0.2s ease), text-decoration-color var(--transition-fast, 0.2s ease);
}

.page-privacy__link:hover,
.page-privacy__link:focus-visible {
  color: #fff;
  text-decoration-color: #fff;
  outline: none;
}

/* ===== 桌面端（≥768px） ===== */
@media (min-width: 768px) {
  .page-privacy__banner {
    min-height: 300px;
  }

  .page-privacy__banner-img {
    min-height: 300px;
  }

  .page-privacy__banner-content {
    padding: var(--space-xl, 4rem) var(--space-2xl, 6rem);
  }

  .page-privacy__layout {
    flex-direction: row;
    align-items: flex-start;
    padding: var(--space-xl, 4rem) var(--space-lg, 2.5rem) var(--space-2xl, 6rem);
    gap: var(--space-xl, 4rem);
  }

  .page-privacy__toc {
    position: sticky;
    top: calc(var(--space-lg, 2.5rem) + 60px);
    width: 240px;
    flex-shrink: 0;
    padding: var(--space-lg, 2.5rem) var(--space-md, 1.25rem);
  }

  .page-privacy__toc-list {
    gap: var(--space-xs, 0.35rem);
  }

  .page-privacy__toc-link {
    font-size: var(--fs-small, 0.85rem);
    padding: var(--space-xs, 0.35rem) 0 var(--space-xs, 0.35rem) var(--space-sm, 0.65rem);
  }

  .page-privacy__section {
    flex-direction: row;
    gap: var(--space-lg, 2.5rem);
    padding: var(--space-lg, 2.5rem) 0;
  }

  .page-privacy__section-num {
    font-size: clamp(3rem, 5vw, 4.5rem);
    opacity: 0.08;
    min-width: 100px;
  }

  .page-privacy__section-heading {
    font-size: var(--fs-heading-lg, clamp(1.75rem, 3.5vw, 2.75rem));
    padding-left: var(--space-md, 1.25rem);
  }

  .page-privacy__section-heading::before {
    display: block;
  }

  .page-privacy__contact-card {
    flex-direction: row;
    align-items: flex-start;
    padding: var(--space-xl, 4rem) var(--space-lg, 2.5rem);
  }

  .page-privacy__contact-num {
    font-size: var(--fs-body, 1rem);
    min-width: 80px;
  }

  .page-privacy__contact-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-md, 1.25rem) var(--space-lg, 2.5rem);
  }
}

/* ===== 大桌面端（≥1024px） ===== */
@media (min-width: 1024px) {
  .page-privacy__toc {
    width: 280px;
    padding: var(--space-xl, 4rem) var(--space-lg, 2.5rem);
  }

  .page-privacy__layout {
    padding: var(--space-xl, 4rem) var(--space-2xl, 6rem) var(--space-2xl, 6rem);
    gap: var(--space-2xl, 6rem);
  }

  .page-privacy__banner-content {
    padding: var(--space-2xl, 6rem) var(--space-2xl, 6rem);
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-privacy__banner,
  .page-privacy__toc,
  .page-privacy__section,
  .page-privacy__contact-card {
    transition: none;
  }

  .page-privacy__toc-link {
    transition: none;
  }

  .page-privacy__link {
    transition: none;
  }
}