.page-privacy {
  --page-color-primary: #FF2A2A;
  --page-color-secondary: #00BFFF;
  --page-color-accent: #FFD700;
  --page-color-bg: #0A0A1A;
  --page-color-surface: #1A1A2E;
  --page-color-text: #FFFFFF;
  --page-color-text-secondary: #B0B0B0;
  --page-color-section-border: rgba(0, 191, 255, 0.15);
  --page-sidebar-width: 220px;
  --page-content-max: 820px;
  --page-font-heading: 'Orbitron', 'Segoe UI', sans-serif;
  --page-font-body: 'Inter', 'Roboto', 'Noto Sans SC', sans-serif;
  --page-transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --page-shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5), 0 0 12px rgba(255, 42, 42, 0.08);
  --page-border-thick: 3px;
  display: block;
  width: 100%;
  background: var(--page-color-bg);
  color: var(--page-color-text);
  font-family: var(--page-font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* ===== 容器 ===== */
.page-privacy__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
}

/* ===== 顶部英雄区 ===== */
.page-privacy__stage {
  position: relative;
  margin-bottom: 40px;
}

.page-privacy__hero {
  position: relative;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--page-shadow-card);
  border: var(--page-border-thick) solid rgba(255, 215, 0, 0.12);
  background: var(--page-color-surface);
}

.page-privacy__hero-img {
  position: relative;
  width: 100%;
  height: auto;
  display: block;
  overflow: hidden;
}

.page-privacy__hero-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-privacy__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 10, 26, 0.88) 0%, rgba(10, 10, 26, 0.40) 60%, rgba(0, 191, 255, 0.08) 100%);
  pointer-events: none;
}

.page-privacy__hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px 32px 32px;
  z-index: 2;
}

.page-privacy__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--page-color-text-secondary);
}

.page-privacy__breadcrumb-link {
  color: var(--page-color-secondary);
  text-decoration: none;
  transition: color var(--page-transition);
  font-weight: 500;
}

.page-privacy__breadcrumb-link:hover {
  color: var(--page-color-primary);
}

.page-privacy__breadcrumb-sep {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.75rem;
}

.page-privacy__breadcrumb-current {
  color: var(--page-color-accent);
  font-weight: 600;
}

.page-privacy__title {
  font-family: var(--page-font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--page-color-text);
  margin: 0 0 6px 0;
  letter-spacing: 0.04em;
  text-shadow: 0 0 30px rgba(255, 42, 42, 0.25), 0 4px 12px rgba(0, 0, 0, 0.6);
}

.page-privacy__lead {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
  margin: 0;
  max-width: 560px;
}

/* ===== 双栏布局 ===== */
.page-privacy__layout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  position: relative;
}

/* ===== 侧边栏导航 ===== */
.page-privacy__sidebar {
  position: sticky;
  top: 20px;
  flex-shrink: 0;
  width: var(--page-sidebar-width);
  background: var(--page-color-surface);
  border: 1px solid var(--page-color-section-border);
  border-radius: 10px;
  padding: 20px 0;
  box-shadow: var(--page-shadow-card);
  backdrop-filter: blur(4px);
  overflow: hidden;
}

.page-privacy__sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 14px 20px;
  border-bottom: 1px solid rgba(255, 215, 0, 0.12);
  margin-bottom: 12px;
}

.page-privacy__sidebar-icon {
  color: var(--page-color-accent);
  font-size: 1rem;
  line-height: 1;
}

.page-privacy__sidebar-label {
  font-family: var(--page-font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--page-color-text-secondary);
  text-transform: uppercase;
}

.page-privacy__sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy__sidebar-link {
  display: block;
  padding: 8px 20px 8px 28px;
  font-size: 0.88rem;
  color: var(--page-color-text-secondary);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all var(--page-transition);
  position: relative;
  background: transparent;
}

.page-privacy__sidebar-link:hover {
  color: var(--page-color-secondary);
  border-left-color: var(--page-color-secondary);
  background: rgba(0, 191, 255, 0.04);
}

.page-privacy__sidebar-link[aria-current="true"],
.page-privacy__sidebar-link.active {
  color: var(--page-color-accent);
  border-left-color: var(--page-color-accent);
  background: rgba(255, 215, 0, 0.06);
}

.page-privacy__sidebar-status {
  margin-top: 16px;
  padding: 12px 20px 0 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  color: var(--page-color-text-secondary);
}

.page-privacy__status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--page-color-accent);
  box-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
  animation: page-privacy-pulse 2s ease-in-out infinite;
}

@keyframes page-privacy-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

.page-privacy__status-text {
  letter-spacing: 0.02em;
}

/* ===== 正文主区域 ===== */
.page-privacy__content {
  flex: 1;
  min-width: 0;
  max-width: var(--page-content-max);
}

/* ===== 章节区块 ===== */
.page-privacy__section {
  margin-bottom: 48px;
  scroll-margin-top: 24px;
  position: relative;
}

.page-privacy__section-header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 215, 0, 0.10);
}

.page-privacy__section-number {
  font-family: var(--page-font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--page-color-accent);
  line-height: 1;
  letter-spacing: 0.03em;
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.08);
}

.page-privacy__section-title {
  font-family: var(--page-font-heading);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 700;
  color: var(--page-color-text);
  margin: 0;
  letter-spacing: 0.02em;
}

/* ===== 正文排版 ===== */
.page-privacy__section-body {
  padding-left: 4px;
}

.page-privacy__text {
  font-size: 0.96rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 16px 0;
  letter-spacing: 0.01em;
}

.page-privacy__text-meta {
  font-size: 0.88rem;
  color: var(--page-color-text-secondary);
}

.page-privacy__list {
  list-style: none;
  margin: 0 0 16px 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-privacy__list-item {
  position: relative;
  padding-left: 24px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.80);
}

.page-privacy__list-item::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--page-color-secondary);
  font-size: 0.85rem;
}

/* ===== 联系方式列表 ===== */
.page-privacy__contact-list {
  list-style: none;
  margin: 0 0 20px 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy__contact-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.95rem;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 6px;
  border-left: 3px solid rgba(0, 191, 255, 0.20);
}

.page-privacy__contact-label {
  font-weight: 600;
  color: var(--page-color-secondary);
  white-space: nowrap;
  font-size: 0.9rem;
}

.page-privacy__contact-value {
  color: rgba(255, 255, 255, 0.82);
  word-break: break-word;
}

.page-privacy__inline-link {
  color: var(--page-color-secondary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 191, 255, 0.25);
  transition: all var(--page-transition);
}

.page-privacy__inline-link:hover {
  color: var(--page-color-accent);
  border-bottom-color: var(--page-color-accent);
}

/* ===== 底部注 ===== */
.page-privacy__footer-note {
  margin-top: 48px;
  padding: 20px 24px;
  background: rgba(255, 215, 0, 0.04);
  border: 1px solid rgba(255, 215, 0, 0.10);
  border-radius: 8px;
  text-align: center;
}

.page-privacy__footer-note-text {
  font-size: 0.85rem;
  color: var(--page-color-text-secondary);
  margin: 0 0 8px 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.page-privacy__footer-note-date {
  font-size: 0.8rem;
  color: var(--page-color-accent);
  font-family: var(--page-font-heading);
  letter-spacing: 0.05em;
  margin: 0;
}

/* ===== 返回顶部 ===== */
.page-privacy__scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border: 2px solid var(--page-color-accent);
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(8px);
  color: var(--page-color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.10);
  transition: all var(--page-transition);
  opacity: 0;
  visibility: hidden;
  z-index: 100;
}

.page-privacy__scroll-top[data-visible] {
  opacity: 1;
  visibility: visible;
}

.page-privacy__scroll-top:hover {
  background: var(--page-color-accent);
  color: var(--page-color-bg);
  box-shadow: 0 0 32px rgba(255, 215, 0, 0.25);
  transform: translateY(-2px);
}

.page-privacy__scroll-top-icon {
  line-height: 1;
}

/* ===== 窄屏适配 ===== */
@media (max-width: 820px) {
  .page-privacy__container {
    padding: 0 14px;
  }

  .page-privacy__hero-content {
    padding: 18px 20px 22px;
  }

  .page-privacy__layout {
    flex-direction: column;
    gap: 24px;
  }

  .page-privacy__sidebar {
    position: relative;
    top: 0;
    width: 100%;
    padding: 16px 0;
    border-radius: 8px;
  }

  .page-privacy__sidebar-header {
    padding: 0 16px 10px 16px;
  }

  .page-privacy__sidebar-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    padding: 0 8px;
  }

  .page-privacy__sidebar-link {
    padding: 6px 12px;
    border-left: none;
    border-bottom: 2px solid transparent;
    font-size: 0.82rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.03);
  }

  .page-privacy__sidebar-link:hover {
    border-left-color: transparent;
    border-bottom-color: var(--page-color-secondary);
  }

  .page-privacy__sidebar-link[aria-current="true"],
  .page-privacy__sidebar-link.active {
    border-left-color: transparent;
    border-bottom-color: var(--page-color-accent);
  }

  .page-privacy__sidebar-status {
    display: none;
  }

  .page-privacy__content {
    max-width: 100%;
  }

  .page-privacy__section {
    margin-bottom: 36px;
  }

  .page-privacy__section-header {
    gap: 10px;
  }

  .page-privacy__section-number {
    font-size: 1.3rem;
  }

  .page-privacy__section-body {
    padding-left: 0;
  }

  .page-privacy__text {
    font-size: 0.9rem;
  }

  .page-privacy__list-item {
    font-size: 0.9rem;
    padding-left: 20px;
  }

  .page-privacy__contact-item {
    flex-direction: column;
    gap: 2px;
    padding: 10px 14px;
  }

  .page-privacy__contact-label {
    font-size: 0.85rem;
  }

  .page-privacy__footer-note {
    margin-top: 32px;
    padding: 16px 18px;
  }

  .page-privacy__scroll-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .page-privacy__container {
    padding: 0 10px;
  }

  .page-privacy__hero-content {
    padding: 14px 14px 18px;
  }

  .page-privacy__breadcrumb {
    font-size: 0.72rem;
    flex-wrap: wrap;
  }

  .page-privacy__title {
    font-size: 1.6rem;
  }

  .page-privacy__lead {
    font-size: 0.85rem;
  }

  .page-privacy__sidebar-list {
    gap: 4px;
  }

  .page-privacy__sidebar-link {
    font-size: 0.78rem;
    padding: 5px 10px;
  }

  .page-privacy__section-title {
    font-size: 1.1rem;
  }

  .page-privacy__section-number {
    font-size: 1.1rem;
  }

  .page-privacy__text {
    font-size: 0.86rem;
  }

  .page-privacy__footer-note-text {
    font-size: 0.8rem;
  }
}