.page-privacy {
  --privacy-bg-texture: url('{zhanqunpic:h:900w:1440}');
  --privacy-section-gap: 4rem;
  --privacy-toc-width: 180px;
  --privacy-content-max: 800px;
  --privacy-accent-cyan: #00f5d4;
  --privacy-accent-magenta: #ff006e;
  --privacy-text-body: #d0d0d8;
  --privacy-text-dim: #888899;
  --privacy-section-bg: rgba(12, 13, 22, 0.65);
  --privacy-border-style: 1px solid rgba(0, 245, 212, 0.18);
  display: flex;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  color: var(--privacy-text-body);
  font-family: var(--font-body, 'Segoe UI', 'Helvetica Neue', sans-serif);
  line-height: 1.7;
}
.privacy-bg-overlay {
  position: fixed;
  inset: 0;
  background: var(--privacy-bg-texture) center / cover no-repeat;
  opacity: 0.07;
  pointer-events: none;
  z-index: 0;
}
.privacy-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  display: flex;
  gap: 2.5rem;
}
.privacy-toc {
  display: none;
  width: var(--privacy-toc-width);
  flex-shrink: 0;
  position: sticky;
  top: 5rem;
  align-self: flex-start;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
  padding-right: 0.5rem;
  border-right: var(--privacy-border-style);
}
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.toc-item {
  line-height: 1.3;
}
.toc-link {
  display: block;
  padding: 0.3rem 0.6rem;
  font-family: var(--font-heading, 'Arial Black', 'Impact', sans-serif);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--privacy-text-dim);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
  border-radius: 2px;
}
.toc-link:hover,
.toc-link:focus-visible {
  color: var(--privacy-accent-cyan);
  border-left-color: var(--privacy-accent-cyan);
  background: rgba(0, 245, 212, 0.06);
  outline: none;
}
.toc-link[aria-current="true"] {
  color: var(--privacy-accent-magenta);
  border-left-color: var(--privacy-accent-magenta);
  background: rgba(255, 0, 110, 0.08);
}
.privacy-content {
  flex: 1;
  min-width: 0;
  max-width: var(--privacy-content-max);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.breadcrumb-link {
  color: var(--privacy-accent-cyan);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb-link:hover {
  color: var(--privacy-accent-magenta);
}
.breadcrumb-sep {
  color: var(--privacy-text-dim);
}
.breadcrumb-current {
  color: var(--privacy-text-dim);
  font-weight: 500;
}
.privacy-title {
  font-family: var(--font-heading, 'Arial Black', 'Impact', sans-serif);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--privacy-accent-cyan);
  text-shadow: 0 0 12px rgba(0, 245, 212, 0.45);
  margin: 0 0 1.2rem;
  line-height: 1.1;
}
.privacy-intro {
  font-size: 1.05rem;
  color: var(--privacy-text-body);
  border-left: 3px solid var(--privacy-accent-magenta);
  padding-left: 1.2rem;
  margin-bottom: var(--privacy-section-gap);
  background: rgba(255, 0, 110, 0.04);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  border-radius: 0 4px 4px 0;
}
.privacy-deco-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0 2rem;
  border-radius: 6px;
  opacity: 0.8;
}
.privacy-section {
  margin-bottom: var(--privacy-section-gap);
  scroll-margin-top: 4rem;
}
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.3rem;
}
.section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: 1.3rem;
  color: var(--privacy-accent-magenta);
  background: rgba(255, 0, 110, 0.1);
  border-radius: 4px;
  flex-shrink: 0;
  line-height: 1;
}
.section-heading {
  font-family: var(--font-heading, 'Arial Black', 'Impact', sans-serif);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--privacy-accent-cyan);
  text-shadow: 0 0 6px rgba(0, 245, 212, 0.3);
  margin: 0;
  line-height: 1.2;
}
.section-divider {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, var(--privacy-accent-magenta) 0%, rgba(255, 0, 110, 0) 100%);
  margin: 0.6rem 0 1.2rem;
}
.section-body {
  color: var(--privacy-text-body);
  font-size: 0.95rem;
}
.section-body p {
  margin: 0 0 0.8rem;
}
.privacy-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.privacy-list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.5;
}
.privacy-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--privacy-accent-cyan);
  border-radius: 1px;
  transform: rotate(45deg);
  box-shadow: 0 0 6px rgba(0, 245, 212, 0.5);
}
.emphasis-cyan {
  color: var(--privacy-accent-cyan);
  font-weight: 600;
}
.term {
  font-weight: 600;
  color: var(--privacy-accent-magenta);
}
.contact-info {
  margin-top: 0.5rem;
}
.contact-link {
  color: var(--privacy-accent-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 245, 212, 0.3);
  transition: color 0.2s, border-color 0.2s;
}
.contact-link:hover {
  color: var(--privacy-accent-magenta);
  border-bottom-color: var(--privacy-accent-magenta);
}
.contact-note {
  font-size: 0.85rem;
  color: var(--privacy-text-dim);
  margin-left: 0.3rem;
}
.policy-date {
  font-size: 0.85rem;
  color: var(--privacy-text-dim);
  margin-top: 0.5rem;
  border-top: var(--privacy-border-style);
  padding-top: 0.5rem;
}
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  border: 2px solid var(--privacy-accent-cyan);
  background: var(--privacy-section-bg);
  color: var(--privacy-accent-cyan);
  font-size: 1.3rem;
  border-radius: 6px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: background 0.3s, border-color 0.3s, transform 0.2s;
  z-index: 100;
  line-height: 1;
  padding: 0;
}
.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--privacy-accent-cyan);
  color: #0a0b10;
  border-color: var(--privacy-accent-cyan);
  transform: scale(1.05);
  outline: none;
}
.back-to-top.visible {
  display: flex;
}

/* 移动端优先 - 窄屏调整 */
@media (max-width: 768px) {
  .privacy-container {
    flex-direction: column;
    padding: 1.5rem 1rem 4rem;
    gap: 1.5rem;
  }
  .privacy-toc {
    display: none;
  }
  .privacy-content {
    max-width: 100%;
  }
  .privacy-title {
    font-size: clamp(1.8rem, 8vw, 2.6rem);
  }
  .privacy-section {
    scroll-margin-top: 3rem;
  }
  .section-heading {
    font-size: clamp(1.1rem, 5vw, 1.4rem);
  }
  .back-to-top {
    bottom: 1.2rem;
    right: 1.2rem;
    width: 2.6rem;
    height: 2.6rem;
    font-size: 1.1rem;
  }
}

/* 桌面端显示侧边目录 */
@media (min-width: 769px) {
  .privacy-toc {
    display: block;
  }
}