/* ============================================
   页面：隐私政策 (privacy)
   作用域：.page-privacy
   设计语言：现代科技感 · 垂直文本流 · 发光分隔线 · 侧边锚点目录
   ============================================ */

/* ---- 设计变量（仅在此页面作用域内有效） ---- */
.page-privacy {
  --privacy-glow: 0 0 12px rgba(57, 255, 20, 0.25);
  --privacy-divider-gradient: linear-gradient(90deg, #39FF14, #00BFFF, #FF4500, transparent);
  --privacy-number-color: #39FF14;
  --privacy-accent-border: #00BFFF;
  --privacy-card-bg: rgba(255, 255, 255, 0.02);
  --privacy-card-border: rgba(255, 255, 255, 0.06);
  --privacy-toc-width: 220px;
  --privacy-content-max: 820px;
}

/* ---- 基础重置与排版 ---- */
.page-privacy {
  background-color: #0D0D0D;
  color: #FFFFFF;
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- 顶部横幅 ---- */
.page-privacy__hero {
  position: relative;
  width: 100%;
  height: auto;
  margin-bottom: 48px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.page-privacy__hero-image img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.55) saturate(1.2) contrast(1.05);
}

.page-privacy__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,13,0.75) 0%, rgba(13,13,13,0.25) 60%, transparent 100%);
  pointer-events: none;
}

.page-privacy__hero-text {
  position: absolute;
  bottom: 32px;
  left: 48px;
  right: 48px;
  z-index: 2;
}

.page-privacy__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
}

.page-privacy__breadcrumb-link {
  color: #39FF14;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.page-privacy__breadcrumb-link:hover,
.page-privacy__breadcrumb-link:focus-visible {
  opacity: 0.7;
  outline: 2px solid #39FF14;
  outline-offset: 4px;
}

.page-privacy__breadcrumb-sep {
  color: #888888;
  font-weight: 300;
}

.page-privacy__breadcrumb-current {
  color: #FFFFFF;
  font-weight: 500;
}

.page-privacy__title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 8px 0;
  line-height: 1.1;
  background: linear-gradient(135deg, #39FF14 0%, #00BFFF 50%, #FF4500 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-privacy__subtitle {
  font-family: 'Inter', sans-serif;
  font-size: clamp(14px, 2vw, 20px);
  color: #888888;
  margin: 0;
  letter-spacing: 0.03em;
  font-weight: 300;
}

/* ---- 布局：侧边目录 + 正文 ---- */
.page-privacy__layout {
  display: flex;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px 80px 48px;
  position: relative;
}

/* ---- 侧边目录 ---- */
.page-privacy__toc {
  flex: 0 0 var(--privacy-toc-width);
  position: sticky;
  top: 24px;
  align-self: flex-start;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #333333 transparent;
}

.page-privacy__toc::-webkit-scrollbar {
  width: 4px;
}

.page-privacy__toc::-webkit-scrollbar-track {
  background: transparent;
}

.page-privacy__toc::-webkit-scrollbar-thumb {
  background: #333333;
  border-radius: 2px;
}

.page-privacy__toc-inner {
  padding: 24px 16px 24px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.page-privacy__toc-heading {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #888888;
  margin: 0 0 24px 0;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(57, 255, 20, 0.25);
}

.page-privacy__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-privacy__toc-item {
  margin: 0;
  padding: 0;
}

.page-privacy__toc-link {
  display: block;
  padding: 10px 12px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  color: #CCCCCC;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: all 0.2s ease;
  border-radius: 0 4px 4px 0;
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  color: #39FF14;
  border-left-color: #39FF14;
  background: rgba(57, 255, 20, 0.06);
  outline: none;
}

.page-privacy__toc-link:focus-visible {
  outline: 2px solid #39FF14;
  outline-offset: 2px;
}

/* 当前章节高亮（由JS增强，无JS时仅hover有效） */
.page-privacy__toc-link[aria-current="true"] {
  color: #39FF14;
  border-left-color: #39FF14;
  background: rgba(57, 255, 20, 0.08);
  font-weight: 600;
}

.page-privacy__toc-rule {
  margin: 24px 0 12px 0;
  height: 1px;
  background: linear-gradient(90deg, #333333, transparent);
}

.page-privacy__toc-note {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #666666;
  letter-spacing: 0.02em;
  margin: 0;
}

/* ---- 正文内容区 ---- */
.page-privacy__content {
  flex: 1;
  min-width: 0;
  max-width: var(--privacy-content-max);
}

/* ---- 章节 ---- */
.page-privacy__section {
  margin-bottom: 64px;
  scroll-margin-top: 32px;
}

.page-privacy__section:last-of-type {
  margin-bottom: 48px;
}

.page-privacy__section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}

.page-privacy__section-number {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 28px;
  letter-spacing: 0.04em;
  color: var(--privacy-number-color);
  opacity: 0.6;
  line-height: 1;
  flex-shrink: 0;
}

.page-privacy__section-heading {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: clamp(22px, 3.5vw, 32px);
  letter-spacing: 0.06em;
  color: #FFFFFF;
  margin: 0;
  line-height: 1.2;
}

/* ---- 发光分隔线 ---- */
.page-privacy__section-divider {
  height: 2px;
  margin-bottom: 28px;
  background: var(--privacy-divider-gradient);
  box-shadow: var(--privacy-glow);
  border-radius: 1px;
  width: 100%;
  max-width: 140px;
}

/* ---- 正文 ---- */
.page-privacy__section-body {
  padding-left: 44px;
}

.page-privacy__text {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #DDDDDD;
  margin: 0 0 20px 0;
}

.page-privacy__text:last-child {
  margin-bottom: 0;
}

.page-privacy__strong {
  color: #39FF14;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-privacy__list {
  list-style: none;
  margin: 0 0 24px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-privacy__list-item {
  position: relative;
  padding-left: 28px;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #CCCCCC;
}

.page-privacy__list-item::before {
  content: "▸";
  position: absolute;
  left: 4px;
  top: 0;
  color: #00BFFF;
  font-size: 18px;
  font-weight: 700;
  transition: transform 0.2s ease;
}

.page-privacy__list-item:hover::before {
  transform: translateX(2px);
  color: #39FF14;
}

/* ---- 数据保护卡片网格 ---- */
.page-privacy__measure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 24px 0 0 0;
}

.page-privacy__measure-card {
  background: var(--privacy-card-bg);
  border: 1px solid var(--privacy-card-border);
  border-radius: 12px;
  padding: 24px 20px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.page-privacy__measure-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #39FF14, #00BFFF);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page-privacy__measure-card:hover {
  border-color: rgba(57, 255, 20, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 191, 255, 0.08);
}

.page-privacy__measure-card:hover::before {
  opacity: 1;
}

.page-privacy__measure-icon {
  display: inline-block;
  font-size: 28px;
  margin-bottom: 12px;
  line-height: 1;
}

.page-privacy__measure-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  margin: 0 0 8px 0;
}

.page-privacy__measure-desc {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: #AAAAAA;
  margin: 0;
}

/* ---- 页脚注释 ---- */
.page-privacy__footer-note {
  margin-top: 16px;
  padding-left: 44px;
}

.page-privacy__footer-rule {
  height: 1px;
  margin-bottom: 24px;
  background: linear-gradient(90deg, #333333 30%, transparent);
}

.page-privacy__footer-text {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: #666666;
  margin: 0 0 6px 0;
  line-height: 1.6;
}

.page-privacy__footer-text:last-child {
  margin-bottom: 0;
}

.page-privacy__inline-link {
  color: #00BFFF;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 191, 255, 0.3);
  transition: all 0.2s ease;
}

.page-privacy__inline-link:hover,
.page-privacy__inline-link:focus-visible {
  color: #39FF14;
  border-bottom-color: #39FF14;
  outline: none;
}

.page-privacy__inline-link:focus-visible {
  outline: 2px solid #39FF14;
  outline-offset: 2px;
  border-bottom-color: transparent;
}

/* ============================================
   平板 & 桌面断点 (≥768px)
   移动端优先，此处覆盖窄屏布局
   ============================================ */
@media (max-width: 767px) {
  .page-privacy__layout {
    flex-direction: column;
    gap: 32px;
    padding: 0 20px 60px 20px;
  }

  .page-privacy__toc {
    position: relative;
    top: auto;
    flex: none;
    width: 100%;
    max-height: none;
    overflow-y: visible;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 20px;
    margin-bottom: 8px;
  }

  .page-privacy__toc-inner {
    padding: 0;
    border-right: none;
  }

  .page-privacy__toc-heading {
    font-size: 12px;
    margin-bottom: 16px;
    padding-bottom: 8px;
  }

  .page-privacy__toc-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
  }

  .page-privacy__toc-item {
    flex: 0 0 auto;
  }

  .page-privacy__toc-link {
    font-size: 13px;
    padding: 6px 14px;
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    background: rgba(255, 255, 255, 0.02);
  }

  .page-privacy__toc-link:hover,
  .page-privacy__toc-link:focus-visible {
    border-left-color: transparent;
    border-bottom-color: #39FF14;
    background: rgba(57, 255, 20, 0.06);
  }

  .page-privacy__toc-link[aria-current="true"] {
    border-left-color: transparent;
    border-bottom-color: #39FF14;
  }

  .page-privacy__toc-rule {
    display: none;
  }

  .page-privacy__toc-note {
    margin-top: 12px;
    font-size: 11px;
  }

  .page-privacy__hero-text {
    bottom: 20px;
    left: 20px;
    right: 20px;
  }

  .page-privacy__title {
    font-size: clamp(28px, 8vw, 42px);
  }

  .page-privacy__subtitle {
    font-size: 14px;
  }

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

  .page-privacy__section-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .page-privacy__section-number {
    font-size: 22px;
  }

  .page-privacy__section-heading {
    font-size: clamp(18px, 5vw, 26px);
  }

  .page-privacy__section-divider {
    max-width: 80px;
    margin-bottom: 20px;
  }

  .page-privacy__measure-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-privacy__measure-card {
    padding: 18px 16px;
  }

  .page-privacy__footer-note {
    padding-left: 0;
  }

  .page-privacy__list-item {
    padding-left: 24px;
    font-size: 15px;
  }

  .page-privacy__text {
    font-size: 15px;
  }
}

/* ---- 中屏微调 (768-1023px) ---- */
@media (min-width: 768px) and (max-width: 1023px) {
  .page-privacy__layout {
    padding: 0 32px 72px 32px;
    gap: 32px;
  }

  .page-privacy__toc {
    --privacy-toc-width: 170px;
    flex-basis: var(--privacy-toc-width);
  }

  .page-privacy__toc-inner {
    padding-right: 12px;
  }

  .page-privacy__toc-link {
    font-size: 13px;
    padding: 8px 10px;
  }

  .page-privacy__measure-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ---- 宽屏增强 (≥1400px) ---- */
@media (min-width: 1400px) {
  .page-privacy__layout {
    padding: 0 64px 96px 64px;
  }

  .page-privacy__toc {
    --privacy-toc-width: 260px;
  }

  .page-privacy__content {
    --privacy-content-max: 880px;
  }

  .page-privacy__section-heading {
    font-size: 36px;
  }
}

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

  .page-privacy__measure-card:hover {
    transform: none;
  }
}