/* ===== 数据与隐私页 — 专属样式 ===== */
.page-privacy {
  --privacy-nav-width: 220px;
  --privacy-gap: var(--spacing-xl, 4rem);
  --privacy-body-max: 65ch;
  --privacy-num-size: clamp(2.4rem, 5vw, 4.2rem);
  --privacy-num-color: var(--color-accent-gold, #FFD700);
  --privacy-line-color: var(--color-divider, #2A3F5E);
  --privacy-link-color: var(--color-accent-cyan, #00E5FF);
  --privacy-link-hover: var(--color-accent-gold, #FFD700);
  --privacy-section-spacing: var(--spacing-xl, 4rem);
  --privacy-hero-radius: var(--border-radius, 4px);
  --privacy-transition: var(--transition-base, 0.35s ease);
}

/* ===== 顶部插图与标题 ===== */
.privacy-hero {
  margin-bottom: var(--spacing-lg, 2rem);
}

.privacy-hero__frame {
  position: relative;
  border: 1px solid var(--privacy-line-color);
  border-radius: var(--privacy-hero-radius);
  overflow: hidden;
  margin-bottom: var(--spacing-lg, 2rem);
  background: var(--color-primary-bg, #0A192F);
}

.privacy-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 800 / 300;
  opacity: 0.92;
  transition: opacity var(--privacy-transition);
}

.privacy-hero__img:hover {
  opacity: 1;
}

.privacy-hero__text {
  text-align: center;
  margin-bottom: var(--spacing-md, 1rem);
}

.privacy-hero__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-xl, clamp(2.75rem, 6vw, 6rem));
  line-height: 1.1;
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--color-primary-text, #FFFFFF);
  margin: 0 0 var(--spacing-xs, 0.25rem);
  text-transform: uppercase;
}

.privacy-hero__subtitle {
  font-family: var(--font-special, 'Inter', sans-serif);
  font-weight: var(--fw-special, 500);
  font-size: var(--fs-heading-sm, clamp(1.125rem, 1.8vw, 1.5rem));
  letter-spacing: var(--ls-special, 0.05em);
  color: var(--color-accent-gold, #FFD700);
  margin: 0 0 var(--spacing-sm, 0.5rem);
}

.privacy-hero__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: var(--fw-body, 400);
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  line-height: var(--lh-body, 1.6);
  color: var(--color-text-body, #E0E0E0);
  max-width: 60ch;
  margin: 0 auto;
}

/* ===== 面包屑 ===== */
.privacy-breadcrumb {
  margin-bottom: var(--spacing-xl, 4rem);
  font-size: var(--fs-caption, 0.75rem);
  color: var(--color-text-muted, #8899AA);
}

.privacy-breadcrumb .breadcrumb-link {
  color: var(--color-text-muted, #8899AA);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.privacy-breadcrumb .breadcrumb-link:hover {
  color: var(--privacy-link-color);
}

.privacy-breadcrumb .breadcrumb-sep {
  margin: 0 var(--spacing-xs, 0.25rem);
  color: var(--color-divider, #2A3F5E);
}

.privacy-breadcrumb .breadcrumb-current {
  color: var(--color-primary-text, #FFFFFF);
  font-weight: var(--fw-special, 500);
}

/* ===== 两栏布局 ===== */
.privacy-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl, 4rem);
}

/* ===== 左侧锚点导航 ===== */
.privacy-nav {
  order: -1;
  flex-shrink: 0;
}

.privacy-nav__heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-caption, 0.75rem);
  letter-spacing: var(--ls-special, 0.05em);
  text-transform: uppercase;
  color: var(--color-text-muted, #8899AA);
  margin: 0 0 var(--spacing-md, 1rem);
  padding-bottom: var(--spacing-sm, 0.5rem);
  border-bottom: 1px solid var(--privacy-line-color);
}

.privacy-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm, 0.5rem);
}

.privacy-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--spacing-xs, 0.25rem);
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: var(--fw-body, 400);
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  color: var(--color-text-body, #E0E0E0);
  text-decoration: none;
  padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
  border-radius: var(--border-radius, 4px);
  transition: background var(--transition-fast, 0.2s ease), color var(--transition-fast, 0.2s ease);
  white-space: nowrap;
}

.privacy-nav__link:hover {
  background: rgba(255, 215, 0, 0.08);
}

.privacy-nav__num {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: 0.85em;
  color: var(--color-text-muted, #8899AA);
  transition: color var(--transition-fast, 0.2s ease);
}

.privacy-nav__link:hover .privacy-nav__num {
  color: var(--privacy-num-color);
}

.privacy-nav__label {
  font-size: 0.95em;
}

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

/* ===== 各章节 ===== */
.privacy-section {
  margin-bottom: var(--privacy-section-spacing);
  scroll-margin-top: calc(var(--header-top-height, 1.75rem) + var(--header-main-height, 3.5rem) + var(--spacing-lg, 2rem));
}

.privacy-section:last-of-type {
  margin-bottom: var(--spacing-xl, 4rem);
}

.privacy-section__header {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-md, 1rem);
  border-bottom: 1px solid var(--privacy-line-color);
  padding-bottom: var(--spacing-sm, 0.5rem);
}

.privacy-section__badge {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--privacy-num-size);
  line-height: 1;
  color: var(--privacy-num-color);
  opacity: 0.85;
  flex-shrink: 0;
  transition: opacity var(--transition-fast, 0.2s ease);
}

.privacy-section:hover .privacy-section__badge {
  opacity: 1;
}

.privacy-section__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-md, clamp(1.5rem, 3vw, 2.25rem));
  line-height: 1.2;
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--color-primary-text, #FFFFFF);
  margin: 0;
  text-transform: uppercase;
}

.privacy-section__body {
  max-width: var(--privacy-body-max);
  padding-left: calc(var(--privacy-num-size) + var(--spacing-md, 1rem));
}

.privacy-section__body p {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: var(--fw-body, 400);
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  line-height: var(--lh-body, 1.6);
  color: var(--color-text-body, #E0E0E0);
  margin: 0 0 var(--spacing-md, 1rem);
}

.privacy-section__body p:last-child {
  margin-bottom: 0;
}

/* ===== 内部链接区 ===== */
.privacy-related {
  border-top: 1px solid var(--privacy-line-color);
  padding-top: var(--spacing-lg, 2rem);
  margin-top: var(--spacing-xl, 4rem);
  max-width: var(--privacy-body-max);
}

.privacy-related p {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: var(--fw-body, 400);
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  line-height: var(--lh-body, 1.6);
  color: var(--color-text-muted, #8899AA);
  margin: 0;
}

/* ===== 通用链接样式 ===== */
.privacy-link {
  color: var(--privacy-link-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast, 0.2s ease), border-color var(--transition-fast, 0.2s ease);
}

.privacy-link:hover {
  color: var(--privacy-link-hover);
  border-bottom-color: var(--privacy-link-hover);
}

/* ===== 桌面端：两栏并排 ===== */
@media (min-width: 1024px) {
  .privacy-layout {
    flex-direction: row;
    gap: var(--spacing-2xl, 6rem);
    align-items: flex-start;
  }

  .privacy-nav {
    order: 0;
    width: var(--privacy-nav-width);
    position: sticky;
    top: calc(var(--header-top-height, 1.75rem) + var(--header-main-height, 3.5rem) + var(--spacing-md, 1rem));
    max-height: calc(100vh - var(--header-top-height, 1.75rem) - var(--header-main-height, 3.5rem) - var(--spacing-xl, 4rem));
    overflow-y: auto;
  }

  .privacy-nav__list {
    flex-direction: column;
    gap: var(--spacing-xs, 0.25rem);
  }

  .privacy-nav__link {
    white-space: normal;
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    border-left: 2px solid transparent;
    border-radius: 0 var(--border-radius, 4px) var(--border-radius, 4px) 0;
  }

  .privacy-nav__link:hover {
    border-left-color: var(--privacy-num-color);
    background: rgba(255, 215, 0, 0.06);
  }

  .privacy-content {
    flex: 1;
    min-width: 0;
  }

  .privacy-section__body {
    padding-left: 0;
  }

  .privacy-hero__text {
    text-align: left;
    padding-left: var(--spacing-lg, 2rem);
  }

  .privacy-hero__desc {
    margin: 0;
  }
}

/* ===== 窄屏微调 ===== */
@media (max-width: 480px) {
  .privacy-hero__title {
    font-size: var(--fs-heading-lg, clamp(2rem, 4vw, 3.5rem));
  }

  .privacy-section__header {
    flex-wrap: wrap;
    gap: var(--spacing-xs, 0.25rem);
  }

  .privacy-section__badge {
    font-size: calc(var(--privacy-num-size) * 0.7);
  }

  .privacy-section__body {
    padding-left: 0;
  }

  .privacy-nav__link {
    font-size: calc(var(--fs-body, 1rem) * 0.9);
    padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
  }
}

/* ===== reduced-motion 兼容 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-privacy *,
  .page-privacy *::before,
  .page-privacy *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .privacy-hero__img {
    opacity: 1;
  }

  .privacy-section__badge {
    opacity: 0.85;
  }
}