/* ===== 隐私政策专属样式 ===== */
.page-privacy {
  --page-max-width: var(--max-width, 1280px);
  --page-content-max: 860px;
  --page-toc-width: 220px;
  --page-gap: var(--spacing-xl, 3rem);
  --page-section-gap: var(--spacing-xxl, 4rem);
  --page-hero-min-height: 320px;
  --page-card-radius: var(--radius-md, 16px);
  --page-highlight-radius: var(--radius-md, 16px);
  --page-transition: var(--transition, 0.3s ease);

  display: block;
  width: 100%;
  background-color: var(--color-light, #F5F5F7);
  font-family: var(--font-body, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  color: var(--color-text, #333333);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- 顶部英雄区 ----- */
.page-privacy__hero {
  position: relative;
  width: 100%;
  min-height: var(--page-hero-min-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-dark, #1C1C1E);
}

.page-privacy__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.page-privacy__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
  opacity: 0.5;
}

.page-privacy__hero-overlay {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--page-max-width);
  padding: var(--spacing-xl, 3rem) var(--spacing-md, 1.5rem);
  text-align: center;
  color: var(--color-white, #FFFFFF);
}

.page-privacy__breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: var(--spacing-md, 1.5rem);
  font-size: 0.875rem;
  flex-wrap: wrap;
}

.page-privacy__breadcrumb-link {
  color: var(--color-gold, #FFD700);
  text-decoration: none;
  transition: opacity var(--page-transition);
}

.page-privacy__breadcrumb-link:hover,
.page-privacy__breadcrumb-link:focus-visible {
  opacity: 0.8;
  text-decoration: underline;
}

.page-privacy__breadcrumb-sep {
  color: rgba(255, 255, 255, 0.5);
  margin: 0 0.15rem;
}

.page-privacy__breadcrumb-current {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.page-privacy__title {
  font-family: var(--font-heading, 'Montserrat', 'SF Pro Display', 'Helvetica Neue', sans-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0 0 var(--spacing-sm, 1rem);
  color: var(--color-white, #FFFFFF);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.page-privacy__subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.125rem);
  max-width: 680px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

/* ----- 主体布局 ----- */
.page-privacy__layout {
  display: flex;
  gap: var(--page-gap);
  max-width: calc(var(--page-max-width) + var(--page-toc-width) * 0.5);
  margin: 0 auto;
  padding: var(--spacing-xl, 3rem) var(--spacing-md, 1.5rem) var(--spacing-xxl, 4rem);
  position: relative;
  flex-direction: column;
}

/* ----- 目录侧边栏 ----- */
.page-privacy__toc {
  flex-shrink: 0;
  width: 100%;
  position: relative;
  top: 0;
  z-index: 5;
}

.page-privacy__toc-inner {
  background-color: var(--color-white, #FFFFFF);
  border-radius: var(--page-card-radius);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.06));
  padding: var(--spacing-md, 1.5rem);
  border-left: 4px solid var(--color-orange, #FF6B35);
}

.page-privacy__toc-label {
  display: block;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-dark, #1C1C1E);
  margin-bottom: var(--spacing-sm, 1rem);
  letter-spacing: 0.02em;
}

.page-privacy__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.page-privacy__toc-link {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-blue, #1A73E8);
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm, 8px);
  transition: background-color var(--page-transition), color var(--page-transition);
  position: relative;
}

.page-privacy__toc-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0.6rem;
  right: 0.6rem;
  height: 2px;
  background-color: var(--color-orange, #FF6B35);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--page-transition);
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  background-color: rgba(26, 115, 232, 0.08);
  color: var(--color-orange, #FF6B35);
}

.page-privacy__toc-link:hover::after,
.page-privacy__toc-link:focus-visible::after {
  transform: scaleX(1);
}

/* ----- 内容区 ----- */
.page-privacy__content {
  flex: 1;
  min-width: 0;
}

/* ----- 章节通用 ----- */
.page-privacy__section {
  margin-bottom: var(--page-section-gap);
  scroll-margin-top: 80px;
  background-color: var(--color-white, #FFFFFF);
  border-radius: var(--page-card-radius);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.06));
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1.5rem);
  transition: box-shadow var(--page-transition);
}

.page-privacy__section:target {
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.1));
  border-left: 4px solid var(--color-orange, #FF6B35);
}

.page-privacy__section-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 1rem);
  margin-bottom: var(--spacing-md, 1.5rem);
  padding-bottom: var(--spacing-sm, 1rem);
  border-bottom: 2px solid var(--color-light, #F5F5F7);
}

.page-privacy__section-icon {
  font-size: 1.8rem;
  line-height: 1;
  flex-shrink: 0;
}

.page-privacy__section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 800;
  color: var(--color-dark, #1C1C1E);
  margin: 0;
  letter-spacing: -0.01em;
}

/* ----- 正文排版 ----- */
.page-privacy__text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text, #333333);
  margin: 0 0 var(--spacing-md, 1.5rem);
}

.page-privacy__text-sm {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text, #333333);
  margin: 0 0 var(--spacing-sm, 1rem);
}

.page-privacy__text-muted {
  color: var(--color-gray, #8E8E93);
  font-size: 0.85rem;
}

/* ----- 列表 ----- */
.page-privacy__list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md, 1.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 1rem);
}

.page-privacy__list--compact {
  gap: 0.5rem;
  margin-bottom: 0;
}

.page-privacy__list-item {
  padding-left: 1.6rem;
  position: relative;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text, #333333);
}

.page-privacy__list-item::before {
  content: '●';
  position: absolute;
  left: 0.2rem;
  color: var(--color-blue, #1A73E8);
  font-size: 0.75rem;
  top: 0.35em;
}

.page-privacy__list-item strong {
  color: var(--color-dark, #1C1C1E);
  font-weight: 600;
}

/* ----- 高亮框 ----- */
.page-privacy__highlight-box {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm, 1rem);
  background-color: rgba(26, 115, 232, 0.06);
  border-radius: var(--page-highlight-radius);
  padding: var(--spacing-md, 1.5rem);
  margin-top: var(--spacing-md, 1.5rem);
  border-left: 4px solid var(--color-blue, #1A73E8);
}

.page-privacy__highlight-box--gold {
  background-color: rgba(255, 215, 0, 0.08);
  border-left-color: var(--color-gold, #FFD700);
}

.page-privacy__highlight-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  line-height: 1.4;
}

.page-privacy__highlight-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text, #333333);
  margin: 0;
}

.page-privacy__inline-link {
  color: var(--color-blue, #1A73E8);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
  transition: color var(--page-transition);
}

.page-privacy__inline-link:hover,
.page-privacy__inline-link:focus-visible {
  color: var(--color-orange, #FF6B35);
}

/* ----- 使用卡片网格（信息使用方式） ----- */
.page-privacy__usage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm, 1rem);
  margin-bottom: var(--spacing-md, 1.5rem);
}

.page-privacy__usage-card {
  background-color: var(--color-light, #F5F5F7);
  border-radius: var(--radius-md, 16px);
  padding: var(--spacing-md, 1.5rem);
  transition: transform var(--page-transition), box-shadow var(--page-transition);
}

.page-privacy__usage-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.1));
}

.page-privacy__usage-card-icon {
  display: inline-block;
  font-size: 1.6rem;
  margin-bottom: var(--spacing-xs, 0.5rem);
  line-height: 1;
}

.page-privacy__usage-card-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark, #1C1C1E);
  margin: 0 0 0.4rem;
}

.page-privacy__usage-card-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text, #333333);
  margin: 0;
}

/* ----- 用户权利网格 ----- */
.page-privacy__rights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm, 1rem);
  margin-bottom: var(--spacing-md, 1.5rem);
}

.page-privacy__rights-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm, 1rem);
  padding: var(--spacing-sm, 1rem);
  background-color: var(--color-white, #FFFFFF);
  border-radius: var(--radius-md, 16px);
  border: 1px solid var(--color-border, #E0E0E0);
  transition: border-color var(--page-transition), box-shadow var(--page-transition);
}

.page-privacy__rights-item:hover {
  border-color: var(--color-orange, #FF6B35);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.06));
}

.page-privacy__rights-num {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-orange, #FF6B35);
  flex-shrink: 0;
  min-width: 1.8rem;
  line-height: 1.4;
}

.page-privacy__rights-body {
  flex: 1;
  min-width: 0;
}

.page-privacy__rights-heading {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark, #1C1C1E);
  margin: 0 0 0.25rem;
}

.page-privacy__rights-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-text, #333333);
  margin: 0;
}

/* ----- Cookie 区块 ----- */
.page-privacy__cookie-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm, 1rem);
  margin-bottom: var(--spacing-md, 1.5rem);
}

.page-privacy__cookie-type {
  background-color: var(--color-light, #F5F5F7);
  border-radius: var(--radius-md, 16px);
  padding: var(--spacing-md, 1.5rem);
  border-left: 4px solid var(--color-orange, #FF6B35);
}

.page-privacy__cookie-type-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark, #1C1C1E);
  margin: 0 0 0.35rem;
}

.page-privacy__cookie-type-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text, #333333);
  margin: 0;
}

/* ----- details 折叠组件 ----- */
.page-privacy__details {
  margin: var(--spacing-md, 1.5rem) 0 0;
  border-radius: var(--radius-md, 16px);
  background-color: var(--color-light, #F5F5F7);
  overflow: hidden;
  transition: background-color var(--page-transition);
}

.page-privacy__details[open] {
  background-color: rgba(255, 107, 53, 0.04);
}

.page-privacy__details-summary {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-blue, #1A73E8);
  cursor: pointer;
  padding: var(--spacing-sm, 1rem) var(--spacing-md, 1.5rem);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
  transition: color var(--page-transition);
}

.page-privacy__details-summary::-webkit-details-marker {
  display: none;
}

.page-privacy__details-summary:hover,
.page-privacy__details-summary:focus-visible {
  color: var(--color-orange, #FF6B35);
}

.page-privacy__details-body {
  padding: 0 var(--spacing-md, 1.5rem) var(--spacing-md, 1.5rem);
}

/* ----- 联系卡片 ----- */
.page-privacy__contact-card {
  background: linear-gradient(135deg, rgba(26, 115, 232, 0.04), rgba(255, 107, 53, 0.04));
  border-radius: var(--page-card-radius);
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1.5rem);
  border: 1px solid rgba(26, 115, 232, 0.12);
  margin-bottom: var(--spacing-md, 1.5rem);
}

.page-privacy__contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: var(--spacing-sm, 1rem) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.page-privacy__contact-item:first-child {
  padding-top: 0;
}

.page-privacy__contact-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-privacy__contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gray, #8E8E93);
}

.page-privacy__contact-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-dark, #1C1C1E);
  text-decoration: none;
}

a.page-privacy__contact-value:hover {
  color: var(--color-orange, #FF6B35);
}

.page-privacy__contact-note {
  font-size: 0.85rem;
  color: var(--color-gray, #8E8E93);
}

/* ----- 底部声明 ----- */
.page-privacy__disclaimer {
  margin-top: var(--spacing-xl, 3rem);
  padding: var(--spacing-lg, 2rem) var(--spacing-md, 1.5rem);
  background-color: var(--color-dark, #1C1C1E);
  border-radius: var(--page-card-radius);
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
}

.page-privacy__disclaimer-text {
  font-size: 0.85rem;
  line-height: 1.65;
  margin: 0 0 var(--spacing-sm, 1rem);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-privacy__disclaimer-meta {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
  letter-spacing: 0.02em;
}

/* ===== 响应式设计 ===== */

/* 平板及以上 (>= 640px) */
@media (min-width: 640px) {
  .page-privacy__toc-list {
    flex-direction: row;
  }

  .page-privacy__usage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-privacy__rights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-privacy__cookie-block {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-privacy__section {
    padding: var(--spacing-xl, 3rem);
  }

  .page-privacy__contact-card {
    padding: var(--spacing-xl, 3rem);
  }

  .page-privacy__contact-item {
    flex-direction: row;
    align-items: baseline;
    gap: var(--spacing-sm, 1rem);
  }

  .page-privacy__contact-label {
    min-width: 100px;
  }
}

/* 桌面 (>= 1024px) 双列布局 */
@media (min-width: 1024px) {
  .page-privacy__layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-privacy__toc {
    width: var(--page-toc-width);
    position: sticky;
    top: calc(var(--header-height, 62px) + var(--spacing-md, 1.5rem));
    flex-shrink: 0;
    align-self: flex-start;
  }

  .page-privacy__toc-inner {
    padding: var(--spacing-lg, 2rem) var(--spacing-md, 1.5rem);
  }

  .page-privacy__toc-list {
    flex-direction: column;
    gap: 0.25rem;
  }

  .page-privacy__toc-link {
    padding: 0.4rem 0.6rem;
    font-size: 0.88rem;
  }

  .page-privacy__toc-link::after {
    left: 0.6rem;
    right: 0.6rem;
  }

  .page-privacy__usage-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-privacy__rights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-privacy__cookie-block {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 大桌面 (>= 1280px) 增加内容舒适度 */
@media (min-width: 1280px) {
  .page-privacy__hero-overlay {
    padding: var(--spacing-xxl, 4rem) var(--spacing-lg, 2rem);
  }

  .page-privacy__layout {
    padding: var(--spacing-xxl, 4rem) var(--spacing-lg, 2rem);
  }

  .page-privacy__section {
    padding: var(--spacing-xl, 3rem) var(--spacing-xxl, 4rem);
  }
}

/* 移动端窄屏优化 ( < 640px ) */
@media (max-width: 639px) {
  .page-privacy__hero {
    min-height: 240px;
  }

  .page-privacy__hero-overlay {
    padding: var(--spacing-lg, 2rem) var(--spacing-sm, 1rem);
  }

  .page-privacy__layout {
    padding: var(--spacing-md, 1.5rem) var(--spacing-sm, 1rem);
  }

  .page-privacy__section {
    padding: var(--spacing-md, 1.5rem) var(--spacing-sm, 1rem);
    margin-bottom: var(--spacing-lg, 2rem);
  }

  .page-privacy__section-header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .page-privacy__section-icon {
    font-size: 1.4rem;
  }

  .page-privacy__usage-card {
    padding: var(--spacing-sm, 1rem);
  }

  .page-privacy__rights-item {
    flex-direction: row;
    padding: var(--spacing-sm, 1rem);
  }

  .page-privacy__rights-num {
    font-size: 1rem;
    min-width: 1.4rem;
  }

  .page-privacy__cookie-type {
    padding: var(--spacing-sm, 1rem);
  }

  .page-privacy__contact-card {
    padding: var(--spacing-md, 1.5rem) var(--spacing-sm, 1rem);
  }

  .page-privacy__disclaimer {
    margin-top: var(--spacing-lg, 2rem);
    padding: var(--spacing-md, 1.5rem) var(--spacing-sm, 1rem);
  }

  .page-privacy__toc-list {
    gap: 0.4rem;
  }

  .page-privacy__toc-link {
    font-size: 0.82rem;
    padding: 0.25rem 0.5rem;
  }
}

/* 超小屏 ( < 400px ) 进一步紧凑 */
@media (max-width: 399px) {
  .page-privacy__title {
    font-size: 1.6rem;
  }

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

  .page-privacy__section-title {
    font-size: 1.15rem;
  }

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

  .page-privacy__list-item {
    font-size: 0.88rem;
    padding-left: 1.3rem;
  }

  .page-privacy__usage-card-title {
    font-size: 0.95rem;
  }

  .page-privacy__rights-heading {
    font-size: 0.92rem;
  }
}

/* 平滑滚动（不影响浏览器滚动行为） */
@media (prefers-reduced-motion: no-preference) {
  .page-privacy__section {
    scroll-behavior: smooth;
  }
}

/* 打印样式 */
@media print {
  .page-privacy__hero {
    min-height: auto;
    background-color: var(--color-white, #FFFFFF);
  }

  .page-privacy__hero-overlay {
    color: var(--color-dark, #1C1C1E);
    padding: var(--spacing-md, 1.5rem) 0;
  }

  .page-privacy__title {
    color: var(--color-dark, #1C1C1E);
    text-shadow: none;
  }

  .page-privacy__subtitle {
    color: var(--color-text, #333333);
  }

  .page-privacy__layout {
    flex-direction: column;
    gap: var(--spacing-md, 1.5rem);
  }

  .page-privacy__toc {
    display: none;
  }

  .page-privacy__section {
    box-shadow: none;
    border: 1px solid var(--color-border, #E0E0E0);
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .page-privacy__hero-img {
    display: none;
  }

  .page-privacy__disclaimer {
    background-color: var(--color-light, #F5F5F7);
    color: var(--color-text, #333333);
  }

  .page-privacy__disclaimer-meta {
    color: var(--color-gray, #8E8E93);
  }
}