.page-privacy {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  min-height: 100vh;
  padding: 1.2rem 1rem 3rem;
  background-color: #0B0C10;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(138, 43, 226, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 85% 90%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
    repeating-linear-gradient(55deg, transparent, transparent 3px, rgba(138, 43, 226, 0.025) 3px, rgba(138, 43, 226, 0.025) 5px);
  font-family: var(--font-body, 'Exo 2', 'Source Sans Pro', sans-serif);
  color: var(--text-primary, #FFFFFF);
  box-sizing: border-box;
}

.page-privacy *,
.page-privacy *::before,
.page-privacy *::after {
  box-sizing: inherit;
}

/* ---------- 面包屑 ---------- */
.page-privacy .breadcrumb {
  width: 100%;
  max-width: 820px;
  margin-bottom: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary, #C5C6C7);
  letter-spacing: 0.5px;
}

.page-privacy .breadcrumb a {
  color: var(--primary-neon-blue, #00D4FF);
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}

.page-privacy .breadcrumb a:hover,
.page-privacy .breadcrumb a:focus-visible {
  color: var(--accent-blood-orange, #FF4500);
  text-shadow: 0 0 6px var(--shadow-accent, rgba(255, 69, 0, 0.4));
  outline: none;
}

.page-privacy .breadcrumb-sep {
  color: var(--primary-neon-purple, #8A2BE2);
  font-size: 0.7rem;
}

.page-privacy .breadcrumb [aria-current="page"] {
  color: var(--text-secondary, #C5C6C7);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  width: 100%;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.6rem 0 2rem;
  border-bottom: var(--border-thick, 3px) solid var(--border-highlight, #00D4FF);
  margin-bottom: 2.4rem;
  position: relative;
}

.page-privacy .privacy-hero::after {
  content: '';
  position: absolute;
  bottom: calc(-1 * var(--border-thick, 3px) - 4px);
  left: 10%;
  width: 80%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent-blood-orange, #FF4500), transparent);
  filter: blur(4px);
  opacity: 0.6;
}

.page-privacy .hero-shield {
  width: 120px;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  margin-bottom: 1rem;
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.25), 0 0 60px rgba(138, 43, 226, 0.15);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.6));
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-privacy .hero-shield:hover {
  transform: scale(1.04);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.4), 0 0 80px rgba(138, 43, 226, 0.25);
}

.page-privacy .hero-title {
  font-family: var(--font-heading, 'Orbitron', 'Rajdhani', sans-serif);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-primary, #FFFFFF);
  text-shadow: 0 0 8px rgba(0, 212, 255, 0.5), 0 0 20px rgba(0, 212, 255, 0.15);
  margin: 0 0 0.8rem;
  line-height: 1.2;
}

.page-privacy .hero-intro {
  max-width: 640px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary, #C5C6C7);
  margin: 0;
  padding: 0 0.4rem;
}

/* ---------- 正文容器 ---------- */
.page-privacy .privacy-body {
  width: 100%;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-section {
  background: rgba(31, 40, 51, 0.55);
  backdrop-filter: blur(2px);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-left: var(--border-thick, 3px) solid var(--primary-neon-blue, #00D4FF);
  padding: 1.4rem 1.2rem 1.6rem;
  border-radius: 0 8px 8px 0;
  box-shadow: 4px 4px 0px 0px rgba(0, 0, 0, 0.3);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-privacy .privacy-section[data-reveal] {
  opacity: 0.96;
  transform: translateY(6px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.page-privacy .privacy-section[data-reveal][data-revealed] {
  opacity: 1;
  transform: translateY(0);
}

.page-privacy .privacy-section:hover {
  border-left-color: var(--accent-blood-orange, #FF4500);
  box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.4), 0 0 12px rgba(0, 212, 255, 0.05);
}

.page-privacy .section-heading {
  font-family: var(--font-heading, 'Orbitron', 'Rajdhani', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary-neon-blue, #00D4FF);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-shadow: 0 0 6px rgba(0, 212, 255, 0.15);
}

.page-privacy .section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--primary-neon-blue, #00D4FF);
  color: #0B0C10;
  font-size: 0.85rem;
  font-weight: 800;
  border-radius: 4px;
  flex-shrink: 0;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.page-privacy .privacy-section p,
.page-privacy .privacy-section .highlight-paragraph {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-primary, #FFFFFF);
  margin: 0 0 0.75rem;
  padding: 0.4rem 0.5rem;
  border-radius: 4px;
  transition: background-color 0.25s, border-color 0.25s, box-shadow 0.25s, padding-left 0.25s;
  border-left: 3px solid transparent;
}

.page-privacy .privacy-section p:last-child,
.page-privacy .privacy-section .highlight-paragraph:last-child {
  margin-bottom: 0;
}

/* ---------- 段落点击高亮 ---------- */
.page-privacy .highlight-paragraph {
  cursor: pointer;
  outline: none;
}

.page-privacy .highlight-paragraph:focus,
.page-privacy .highlight-paragraph:focus-visible {
  background-color: rgba(0, 212, 255, 0.07);
  border-left-color: var(--accent-blood-orange, #FF4500);
  box-shadow: 0 0 8px rgba(255, 69, 0, 0.08);
  padding-left: 1rem;
  outline: none;
}

.page-privacy .highlight-paragraph:focus-visible {
  outline: 2px solid var(--primary-neon-blue, #00D4FF);
  outline-offset: 2px;
}

/* ---------- 内链 ---------- */
.page-privacy .privacy-section a {
  color: var(--primary-neon-blue, #00D4FF);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.2s, text-shadow 0.2s;
}

.page-privacy .privacy-section a:hover,
.page-privacy .privacy-section a:focus-visible {
  color: var(--accent-blood-orange, #FF4500);
  text-shadow: 0 0 8px var(--shadow-accent, rgba(255, 69, 0, 0.4));
}

/* ---------- 脚注 ---------- */
.page-privacy .privacy-footnote {
  border-left-color: var(--primary-neon-purple, #8A2BE2);
  background: rgba(31, 40, 51, 0.35);
  font-size: 0.9rem;
}

.page-privacy .privacy-footnote .highlight-paragraph {
  color: var(--text-secondary, #C5C6C7);
  font-size: 0.88rem;
}

/* ---------- 返回顶部 ---------- */
.page-privacy .back-to-top {
  position: fixed;
  bottom: 1.6rem;
  right: 1.2rem;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--primary-neon-blue, #00D4FF);
  color: #0B0C10;
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--border-highlight, #00D4FF);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.3), 3px 3px 0px 0px var(--accent-blood-orange, #FF4500);
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
  line-height: 1;
}

.page-privacy .back-to-top:hover,
.page-privacy .back-to-top:focus-visible {
  transform: translateY(-4px) scale(1.05);
  background: var(--accent-blood-orange, #FF4500);
  border-color: var(--accent-blood-orange, #FF4500);
  box-shadow: 0 0 24px rgba(255, 69, 0, 0.4), 3px 3px 0px 0px var(--primary-neon-blue, #00D4FF);
  outline: none;
}

.page-privacy .back-to-top:focus-visible {
  outline: 2px solid var(--primary-neon-blue, #00D4FF);
  outline-offset: 4px;
}

/* ========== 响应式 ========== */

/* 平板及以上 */
@media (min-width: 600px) {
  .page-privacy {
    padding: 2rem 2rem 4rem;
  }

  .page-privacy .privacy-hero {
    padding: 2.4rem 0 2.8rem;
    margin-bottom: 3rem;
  }

  .page-privacy .hero-shield {
    width: 160px;
  }

  .page-privacy .hero-title {
    font-size: 2.4rem;
    letter-spacing: 4px;
  }

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

  .page-privacy .privacy-body {
    gap: 2.8rem;
  }

  .page-privacy .privacy-section {
    padding: 1.8rem 2rem 2rem;
  }

  .page-privacy .section-heading {
    font-size: 1.4rem;
  }

  .page-privacy .privacy-section p,
  .page-privacy .privacy-section .highlight-paragraph {
    font-size: 1rem;
    padding: 0.5rem 0.8rem;
  }

  .page-privacy .back-to-top {
    bottom: 2.2rem;
    right: 2.2rem;
    width: 50px;
    height: 50px;
    font-size: 1.6rem;
  }
}

/* 桌面大屏 */
@media (min-width: 1024px) {
  .page-privacy {
    padding: 2.5rem 2rem 5rem;
  }

  .page-privacy .privacy-hero {
    padding: 2.8rem 0 3.2rem;
  }

  .page-privacy .hero-shield {
    width: 180px;
  }

  .page-privacy .hero-title {
    font-size: 2.8rem;
    letter-spacing: 6px;
  }

  .page-privacy .privacy-body {
    gap: 3rem;
  }

  .page-privacy .privacy-section {
    padding: 2rem 2.4rem 2.4rem;
  }

  .page-privacy .section-heading {
    font-size: 1.5rem;
  }

  .page-privacy .privacy-section p,
  .page-privacy .privacy-section .highlight-paragraph {
    font-size: 1.05rem;
    padding: 0.5rem 1rem;
  }

  .page-privacy .back-to-top {
    bottom: 2.8rem;
    right: 3rem;
    width: 54px;
    height: 54px;
    font-size: 1.8rem;
  }
}