/* ===== 隐私政策页面专属样式 ===== */
.page-privacy {
  --privacy-toc-width: 280px;
  --privacy-content-max: 780px;
  --privacy-gap: 3rem;
  --privacy-section-gap: 2.5rem;
  --privacy-border-color: rgba(26, 58, 107, 0.08);
  --privacy-bg-stripe: rgba(26, 58, 107, 0.025);

  display: block;
  width: 100%;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 40px,
      var(--privacy-bg-stripe) 40px,
      var(--privacy-bg-stripe) 41px
    ),
    var(--color-white, #FFFFFF);
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  line-height: var(--line-height, 1.6);
  color: var(--color-text-primary, #1A1A2E);
  min-height: 70vh;
}

/* 面包屑 */
.page-privacy .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  color: var(--color-text-secondary, #4A5568);
  margin-bottom: 1.2rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--privacy-border-color);
}

.page-privacy .breadcrumb a {
  color: var(--color-primary, #1A3A6B);
  text-decoration: none;
  font-weight: 400;
  transition: opacity 0.15s;
}

.page-privacy .breadcrumb a:hover,
.page-privacy .breadcrumb a:focus {
  opacity: 0.7;
  text-decoration: underline;
}

.page-privacy .breadcrumb-sep {
  color: var(--color-neutral-gray, #A0AEC0);
  font-size: 0.8rem;
}

.page-privacy .breadcrumb [aria-current="page"] {
  color: var(--color-text-secondary, #4A5568);
  font-weight: 300;
}

/* 顶部英雄区 */
.page-privacy .privacy-hero {
  text-align: center;
  padding: 1.5rem 0 1.8rem;
  margin-bottom: 1rem;
}

.page-privacy .privacy-icon {
  display: block;
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  object-fit: contain;
  border-radius: 50%;
  background: var(--color-bg-light, #E8F0FE);
  padding: 12px;
  box-shadow: 0 2px 12px rgba(26, 58, 107, 0.08);
}

.page-privacy .privacy-hero h1 {
  font-family: var(--font-accent-serif, 'Playfair Display', Georgia, serif);
  font-weight: 400;
  font-size: 2.2rem;
  letter-spacing: 0.02em;
  color: var(--color-primary, #1A3A6B);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.page-privacy .privacy-hero-desc {
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  font-weight: 300;
  font-size: 1rem;
  color: var(--color-text-secondary, #4A5568);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.5;
}

/* 移动端折叠目录 */
.page-privacy .toc-collapse {
  display: block;
  margin-bottom: 1.8rem;
  border: 1px solid var(--privacy-border-color);
  border-radius: 4px;
  background: var(--color-bg-light, #E8F0FE);
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
}

.page-privacy .toc-collapse-summary {
  padding: 0.7rem 1rem;
  font-weight: 600;
  color: var(--color-primary, #1A3A6B);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  user-select: none;
}

.page-privacy .toc-collapse-summary::-webkit-details-marker {
  display: none;
}

.page-privacy .toc-collapse-summary::before {
  content: "▸";
  font-size: 0.85rem;
  transition: transform 0.2s;
  color: var(--color-accent, #00C853);
}

.page-privacy .toc-collapse[open] .toc-collapse-summary::before {
  transform: rotate(90deg);
}

.page-privacy .toc-collapse nav {
  padding: 0 1rem 0.8rem;
}

/* 公共目录列表样式 */
.page-privacy .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .toc-list li {
  margin: 0.2rem 0;
}

.page-privacy .toc-list a {
  display: block;
  padding: 0.4rem 0.6rem;
  color: var(--color-text-primary, #1A1A2E);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 300;
  border-left: 3px solid transparent;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  border-radius: 0 3px 3px 0;
}

.page-privacy .toc-list a:hover,
.page-privacy .toc-list a:focus {
  border-left-color: var(--color-accent, #00C853);
  color: var(--color-primary, #1A3A6B);
  background: rgba(26, 58, 107, 0.04);
}

/* 桌面端固定目录 */
.page-privacy .toc-fixed {
  display: none;
}

/* 主布局 */
.page-privacy .privacy-layout {
  display: block;
}

/* 正文区域 */
.page-privacy .privacy-content {
  max-width: 100%;
}

/* 每个章节 */
.page-privacy .privacy-section {
  margin-bottom: var(--privacy-section-gap, 2.5rem);
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--privacy-border-color);
  scroll-margin-top: 2rem;
}

.page-privacy .privacy-section:last-child {
  border-bottom: none;
}

.page-privacy .privacy-section:target {
  background: rgba(26, 58, 107, 0.02);
  margin-left: -0.8rem;
  margin-right: -0.8rem;
  padding-left: 0.8rem;
  padding-right: 0.8rem;
  border-radius: 4px;
  border-left: 3px solid var(--color-accent, #00C853);
}

.page-privacy .section-heading {
  font-family: var(--font-accent-serif, 'Playfair Display', Georgia, serif);
  font-weight: 400;
  font-size: 1.6rem;
  color: var(--color-primary, #1A3A6B);
  margin: 0 0 0.6rem;
  line-height: 1.25;
  letter-spacing: 0.01em;
}

.page-privacy .section-summary {
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  font-weight: 300;
  font-size: 1rem;
  color: var(--color-text-primary, #1A1A2E);
  margin: 0 0 1rem;
  line-height: 1.6;
  max-width: 680px;
}

/* 可展开详细说明 */
.page-privacy .privacy-details {
  margin-top: 0.6rem;
  border: 1px solid var(--privacy-border-color);
  border-radius: 4px;
  background: var(--color-white, #FFFFFF);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.page-privacy .privacy-details[open] {
  box-shadow: 0 2px 8px rgba(26, 58, 107, 0.06);
}

.page-privacy .privacy-details summary {
  padding: 0.65rem 1rem;
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-primary, #1A3A6B);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  user-select: none;
  background: var(--color-bg-light, #E8F0FE);
  transition: background 0.2s;
}

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

.page-privacy .privacy-details summary::before {
  content: "+";
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-accent, #00C853);
  transition: transform 0.25s;
  line-height: 1;
}

.page-privacy .privacy-details[open] summary::before {
  content: "–";
  transform: rotate(0deg);
}

.page-privacy .privacy-details summary:hover,
.page-privacy .privacy-details summary:focus {
  background: rgba(26, 58, 107, 0.06);
}

.page-privacy .details-body {
  padding: 1rem 1.2rem 1.2rem;
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  font-weight: 300;
  font-size: 0.95rem;
  color: var(--color-text-primary, #1A1A2E);
  line-height: 1.7;
}

.page-privacy .details-body p {
  margin: 0 0 0.8rem;
}

.page-privacy .details-body p:last-child {
  margin-bottom: 0;
}

.page-privacy .details-body ul {
  margin: 0.4rem 0 0.8rem;
  padding-left: 1.2rem;
}

.page-privacy .details-body li {
  margin-bottom: 0.35rem;
}

.page-privacy .details-body strong {
  font-weight: 600;
  color: var(--color-primary, #1A3A6B);
}

.page-privacy .details-body a {
  color: var(--color-primary, #1A3A6B);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s;
}

.page-privacy .details-body a:hover,
.page-privacy .details-body a:focus {
  color: var(--color-accent, #00C853);
}

/* 安全章节配图 */
.page-privacy .security-figure {
  margin: 1.2rem 0 0;
  padding: 0;
  border-radius: 4px;
  overflow: hidden;
  max-width: 100%;
}

.page-privacy .security-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--privacy-border-color);
}

.page-privacy .figure-caption {
  font-family: var(--font-body, 'Inter Light', system-ui, sans-serif);
  font-size: 0.8rem;
  color: var(--color-text-secondary, #4A5568);
  margin-top: 0.4rem;
  text-align: center;
  font-style: italic;
}

/* 联系列表 */
.page-privacy .contact-list {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0.8rem;
}

.page-privacy .contact-list li {
  margin-bottom: 0.4rem;
  padding: 0.25rem 0;
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-privacy {
    padding: 1.5rem 2rem 4rem;
  }

  .page-privacy .privacy-hero {
    padding: 2rem 0 2.2rem;
    margin-bottom: 1.2rem;
  }

  .page-privacy .privacy-hero h1 {
    font-size: 2.8rem;
  }

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

  /* 移动端折叠目录隐藏 */
  .page-privacy .toc-collapse {
    display: none;
  }

  /* 桌面端固定目录显示 */
  .page-privacy .toc-fixed {
    display: block;
    position: sticky;
    top: calc(var(--header-upper-height, 50px) + var(--nav-height, 50px) + 1rem);
    align-self: start;
    width: var(--privacy-toc-width, 280px);
    flex-shrink: 0;
    padding: 0.5rem 0;
  }

  .page-privacy .toc-fixed-title {
    font-family: var(--font-accent-serif, 'Playfair Display', Georgia, serif);
    font-weight: 400;
    font-size: 1rem;
    color: var(--color-text-secondary, #4A5568);
    margin: 0 0 0.6rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--privacy-border-color);
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  .page-privacy .toc-fixed .toc-list a {
    padding: 0.35rem 0.6rem;
    font-size: 0.88rem;
  }

  /* 左右布局 */
  .page-privacy .privacy-layout {
    display: flex;
    gap: var(--privacy-gap, 3rem);
    align-items: flex-start;
  }

  .page-privacy .privacy-content {
    flex: 1;
    max-width: var(--privacy-content-max, 780px);
  }

  .page-privacy .privacy-section {
    padding: 1.5rem 0;
  }

  .page-privacy .section-heading {
    font-size: 1.85rem;
  }

  .page-privacy .section-summary {
    font-size: 1.05rem;
  }

  .page-privacy .privacy-details summary {
    font-size: 0.92rem;
    padding: 0.75rem 1.2rem;
  }

  .page-privacy .details-body {
    font-size: 0.95rem;
    padding: 1.2rem 1.5rem 1.5rem;
  }

  .page-privacy .security-figure {
    max-width: 500px;
  }
}

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

  .page-privacy .privacy-hero h1 {
    font-size: 3.2rem;
  }

  .page-privacy .privacy-layout {
    gap: 4rem;
  }

  .page-privacy .toc-fixed {
    width: 300px;
  }

  .page-privacy .section-heading {
    font-size: 2rem;
  }
}

/* ===== 确保锚点导航平滑 ===== */
@media (prefers-reduced-motion: no-preference) {
  .page-privacy {
    scroll-behavior: smooth;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-privacy {
    background: none;
    padding: 0.5in;
  }

  .page-privacy .toc-collapse,
  .page-privacy .toc-fixed {
    display: none;
  }

  .page-privacy .privacy-layout {
    display: block;
  }

  .page-privacy .privacy-content {
    max-width: 100%;
  }

  .page-privacy .privacy-details summary {
    background: none;
    border: none;
  }

  .page-privacy .privacy-details[open] {
    box-shadow: none;
  }

  .page-privacy .security-figure {
    max-width: 60%;
    margin: 1rem auto;
  }
}