.page-privacy {
  --privacy-index-width: 260px;
  --privacy-gold-line: #FFD700;
  --privacy-gold-line-dim: rgba(255, 215, 0, 0.25);
  --privacy-text-muted: rgba(255, 255, 255, 0.55);
  --privacy-accent-r: rgba(139, 0, 0, 0.08);
  --privacy-accent-g: rgba(255, 215, 0, 0.06);
  --privacy-accent-b: rgba(0, 191, 255, 0.06);
  display: block;
  width: 100%;
  max-width: 100%;
  background-color: var(--color-bg-dark, #0A0A0A);
  color: var(--color-text-primary, #FFFFFF);
  font-family: var(--font-body, 'Inter', 'Noto Sans SC', sans-serif);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== 布局容器 ===== */
.page-privacy .privacy-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 80vh;
  position: relative;
}

/* ===== 左侧索引栏 ===== */
.page-privacy .privacy-index {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem 1.25rem;
  background-color: var(--color-bg-medium, #1A1A1A);
  border-bottom: 1px solid var(--privacy-gold-line-dim);
  position: relative;
  overflow: hidden;
}

/* 斜线装饰 */
.page-privacy .privacy-index::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120%;
  height: 100%;
  background: linear-gradient(135deg, transparent 60%, rgba(255, 215, 0, 0.04) 60%, rgba(255, 215, 0, 0.04) 62%, transparent 62%);
  pointer-events: none;
}

.page-privacy .privacy-index__brand {
  font-family: var(--font-tech, 'Orbitron', monospace);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-gold, #FFD700);
  opacity: 0.7;
}

.page-privacy .privacy-index__topic {
  font-family: var(--font-heading, 'Poppins', sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary, #FFFFFF);
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary, #8B0000);
}

.page-privacy .privacy-index__nav {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.25rem;
  padding: 0.25rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent-gold, #FFD700) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-index__nav::-webkit-scrollbar {
  height: 3px;
}

.page-privacy .privacy-index__nav::-webkit-scrollbar-thumb {
  background-color: var(--color-accent-gold, #FFD700);
  border-radius: 2px;
}

.page-privacy .privacy-index__link {
  flex-shrink: 0;
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-secondary, #B0B0B0);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.page-privacy .privacy-index__link:hover,
.page-privacy .privacy-index__link:focus {
  color: var(--color-accent-gold, #FFD700);
  border-color: var(--privacy-gold-line-dim);
  background-color: rgba(255, 215, 0, 0.04);
}

.page-privacy .privacy-index__link:focus-visible {
  outline: 2px solid var(--color-accent-gold, #FFD700);
  outline-offset: 2px;
}

.page-privacy .privacy-index__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.page-privacy .privacy-index__home {
  font-size: 0.8rem;
  color: var(--color-text-secondary, #B0B0B0);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-privacy .privacy-index__home:hover {
  color: var(--color-accent-gold, #FFD700);
}

.page-privacy .privacy-index__icon {
  font-size: 1.2rem;
  opacity: 0.35;
  user-select: none;
}

/* ===== 右侧内容区 ===== */
.page-privacy .privacy-content {
  flex: 1;
  padding: 1.5rem 1.25rem 3rem;
  position: relative;
  z-index: 1;
  /* RGB背景纹理 */
  background-image:
    radial-gradient(circle at 5% 12%, var(--privacy-accent-r) 0px, transparent 60px),
    radial-gradient(circle at 88% 25%, var(--privacy-accent-g) 0px, transparent 70px),
    radial-gradient(circle at 25% 78%, var(--privacy-accent-b) 0px, transparent 55px),
    radial-gradient(circle at 72% 60%, rgba(139, 0, 0, 0.04) 0px, transparent 80px);
  background-blend-mode: normal;
}

/* ===== 面包屑 ===== */
.page-privacy .privacy-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--color-text-secondary, #B0B0B0);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.page-privacy .privacy-breadcrumb a {
  color: var(--color-text-secondary, #B0B0B0);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-privacy .privacy-breadcrumb a:hover {
  color: var(--color-accent-gold, #FFD700);
}

.page-privacy .privacy-breadcrumb__sep {
  color: var(--privacy-gold-line-dim);
  font-size: 0.65rem;
}

.page-privacy .privacy-breadcrumb [aria-current="page"] {
  color: var(--color-accent-gold, #FFD700);
  font-weight: 500;
}

/* ===== 首屏 ===== */
.page-privacy .privacy-hero {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--privacy-gold-line-dim);
}

.page-privacy .privacy-hero__text {
  order: 2;
}

.page-privacy .privacy-hero__title {
  font-family: var(--font-heading, 'Poppins', sans-serif);
  font-size: 2.2rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  line-height: 1.15;
  color: var(--color-text-primary, #FFFFFF);
  margin: 0 0 0.75rem;
  position: relative;
  display: inline-block;
}

.page-privacy .privacy-hero__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-gold, #FFD700), var(--color-primary, #8B0000));
  margin-top: 0.5rem;
}

.page-privacy .privacy-hero__subtitle {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-secondary, #B0B0B0);
  line-height: 1.6;
  margin: 0 0 0.4rem;
  max-width: 580px;
}

.page-privacy .privacy-hero__desc {
  font-size: 0.88rem;
  color: var(--privacy-text-muted);
  line-height: 1.6;
  margin: 0;
  max-width: 540px;
}

.page-privacy .privacy-hero__image {
  order: 1;
  flex-shrink: 0;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}

.page-privacy .privacy-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  filter: saturate(0.9) contrast(1.05);
  transition: transform 0.4s ease;
}

.page-privacy .privacy-hero__img:hover {
  transform: scale(1.02);
}

/* ===== 章节 ===== */
.page-privacy .privacy-section {
  margin-bottom: 2rem;
  scroll-margin-top: 2rem;
}

.page-privacy .privacy-section__title {
  font-family: var(--font-heading, 'Poppins', sans-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary, #FFFFFF);
  margin: 0 0 0.5rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--color-primary, #8B0000);
  line-height: 1.3;
}

.page-privacy .privacy-section__intro {
  font-size: 0.92rem;
  color: var(--color-text-secondary, #B0B0B0);
  line-height: 1.7;
  margin: 0 0 1.25rem;
  max-width: 640px;
}

/* ===== 可展开条款 ===== */
.page-privacy .privacy-detail {
  display: block;
  margin-bottom: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  background-color: rgba(26, 26, 26, 0.5);
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-privacy .privacy-detail[open] {
  border-color: var(--privacy-gold-line-dim);
  background-color: rgba(26, 26, 26, 0.75);
}

.page-privacy .privacy-detail__summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-primary, #FFFFFF);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color 0.2s ease;
}

.page-privacy .privacy-detail__summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-detail__summary::before {
  content: '▶';
  display: inline-block;
  font-size: 0.6rem;
  color: var(--color-accent-gold, #FFD700);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  width: 1.2em;
  text-align: center;
}

.page-privacy .privacy-detail[open] > .privacy-detail__summary::before {
  transform: rotate(90deg);
}

.page-privacy .privacy-detail__summary:hover {
  color: var(--color-accent-gold, #FFD700);
}

.page-privacy .privacy-detail__summary:focus-visible {
  outline: 2px solid var(--color-accent-gold, #FFD700);
  outline-offset: -2px;
  border-radius: 2px;
}

.page-privacy .privacy-detail__body {
  padding: 0 1rem 1rem 2.8rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary, #B0B0B0);
  line-height: 1.7;
}

.page-privacy .privacy-detail__body p {
  margin: 0 0 0.4rem;
}

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

/* ===== 金色分割线 ===== */
.page-privacy .privacy-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--privacy-gold-line), transparent);
  margin: 1.8rem 0;
  opacity: 0.35;
}

/* ===== 联系我们卡片 ===== */
.page-privacy .privacy-contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  background-color: rgba(26, 26, 26, 0.6);
  border: 1px solid rgba(255, 215, 0, 0.12);
  border-radius: 2px;
  margin-bottom: 1rem;
  max-width: 520px;
}

.page-privacy .privacy-contact-card__item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.page-privacy .privacy-contact-card__label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-accent-gold, #FFD700);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.page-privacy .privacy-contact-card__value {
  font-size: 0.92rem;
  color: var(--color-text-primary, #FFFFFF);
  word-break: break-word;
}

.page-privacy .privacy-contact-card__value a {
  color: var(--color-accent-neon, #00BFFF);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-privacy .privacy-contact-card__value a:hover {
  color: var(--color-accent-gold, #FFD700);
}

.page-privacy .privacy-contact-card__footnote {
  font-size: 0.75rem;
  color: var(--privacy-text-muted);
  margin-top: 0.25rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.page-privacy .privacy-contact__more {
  font-size: 0.88rem;
  color: var(--color-text-secondary, #B0B0B0);
  margin: 0;
}

.page-privacy .privacy-contact__link {
  color: var(--color-accent-neon, #00BFFF);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-privacy .privacy-contact__link:hover {
  color: var(--color-accent-gold, #FFD700);
}

/* ===== 焦点 ===== */
.page-privacy a:focus-visible {
  outline: 2px solid var(--color-accent-gold, #FFD700);
  outline-offset: 2px;
}

/* ===== 桌面端 (>= 768px) ===== */
@media (min-width: 768px) {
  .page-privacy .privacy-layout {
    flex-direction: row;
    max-width: var(--content-max-width, 1200px);
    margin: 0 auto;
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: var(--header-height, 60px);
    align-self: flex-start;
    width: var(--privacy-index-width);
    min-height: calc(100vh - var(--header-height, 60px));
    padding: 2rem 1.5rem;
    border-bottom: none;
    border-right: 1px solid var(--privacy-gold-line-dim);
    flex-shrink: 0;
  }

  .page-privacy .privacy-index::after {
    width: 100%;
    background: linear-gradient(135deg, transparent 65%, rgba(255, 215, 0, 0.04) 65%, rgba(255, 215, 0, 0.04) 67%, transparent 67%);
  }

  .page-privacy .privacy-index__brand {
    font-size: 0.8rem;
  }

  .page-privacy .privacy-index__topic {
    font-size: 1.2rem;
    padding-bottom: 0.6rem;
  }

  .page-privacy .privacy-index__nav {
    flex-direction: column;
    overflow-x: visible;
    gap: 0.15rem;
    padding: 0.5rem 0;
    flex: 1;
  }

  .page-privacy .privacy-index__link {
    padding: 0.55rem 0.75rem;
    font-size: 0.85rem;
    border: none;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
    word-break: keep-all;
  }

  .page-privacy .privacy-index__link:hover,
  .page-privacy .privacy-index__link:focus {
    border-left-color: var(--color-accent-gold, #FFD700);
    background-color: rgba(255, 215, 0, 0.04);
    color: var(--color-accent-gold, #FFD700);
  }

  .page-privacy .privacy-index__footer {
    padding-top: 1rem;
  }

  .page-privacy .privacy-content {
    padding: 2.5rem 2.5rem 4rem;
    min-width: 0;
  }

  .page-privacy .privacy-breadcrumb {
    font-size: 0.8rem;
    margin-bottom: 2rem;
  }

  .page-privacy .privacy-hero {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
    margin-bottom: 3rem;
    padding-bottom: 2.5rem;
  }

  .page-privacy .privacy-hero__text {
    order: 1;
    flex: 1;
  }

  .page-privacy .privacy-hero__image {
    order: 2;
    width: 300px;
    margin: 0;
  }

  .page-privacy .privacy-hero__title {
    font-size: 3rem;
  }

  .page-privacy .privacy-hero__subtitle {
    font-size: 1.1rem;
  }

  .page-privacy .privacy-section__title {
    font-size: 1.7rem;
    padding-left: 1rem;
  }

  .page-privacy .privacy-section__intro {
    font-size: 0.95rem;
  }

  .page-privacy .privacy-detail__summary {
    padding: 0.8rem 1.25rem;
    font-size: 0.95rem;
  }

  .page-privacy .privacy-detail__body {
    padding: 0.25rem 1.25rem 1rem 3.2rem;
    font-size: 0.88rem;
  }

  .page-privacy .privacy-divider {
    margin: 2.2rem 0;
  }

  .page-privacy .privacy-contact-card {
    padding: 1.5rem 2rem;
    gap: 1rem;
  }

  .page-privacy .privacy-contact-card__item {
    flex-direction: row;
    gap: 0.75rem;
    align-items: baseline;
  }

  .page-privacy .privacy-contact-card__label {
    min-width: 80px;
    font-size: 0.75rem;
  }
}

/* ===== 宽桌面端 (>= 1024px) ===== */
@media (min-width: 1024px) {
  .page-privacy .privacy-content {
    padding: 3rem 3.5rem 5rem;
  }

  .page-privacy .privacy-hero__title {
    font-size: 3.5rem;
  }
}

/* ===== 超小屏安全 ===== */
@media (max-width: 360px) {
  .page-privacy .privacy-content {
    padding: 1rem 0.75rem 2rem;
  }

  .page-privacy .privacy-hero__title {
    font-size: 1.6rem;
  }

  .page-privacy .privacy-index__link {
    font-size: 0.72rem;
    padding: 0.3rem 0.6rem;
  }
}