/* ===== 数据与隐私保护页面 专属样式 ===== */
.page-privacy {
  --privacy-gold: #e6b800;
  --privacy-gold-light: #f5d742;
  --privacy-primary: #0a1f3f;
  --privacy-primary-light: #132d5e;
  --privacy-cream: #f5f0e1;
  --privacy-dark: #2b1d1d;
  --privacy-radius: 8px;
  --privacy-transition: 0.35s ease;

  background-color: var(--privacy-cream);
  color: var(--privacy-dark);
  font-family: var(--font-body, 'Noto Sans SC', -apple-system, sans-serif);
  line-height: 1.6;
  min-height: 100vh;
}

/* 辅助类：仅对屏幕阅读器可见 */
.page-privacy .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ===== 首屏 Hero ===== */
.page-privacy .privacy-hero {
  background: linear-gradient(145deg, var(--privacy-primary) 0%, #132d5e 60%, #1a3a5c 100%);
  padding: 48px 16px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-privacy .privacy-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(230, 184, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-privacy .privacy-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 204, 102, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.page-privacy .privacy-breadcrumb {
  font-size: 13px;
  color: rgba(245, 240, 225, 0.7);
  margin-bottom: 28px;
  letter-spacing: 0.3px;
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
}

.page-privacy .privacy-breadcrumb a {
  color: var(--privacy-gold-light);
  text-decoration: none;
  transition: color var(--privacy-transition);
}

.page-privacy .privacy-breadcrumb a:hover,
.page-privacy .privacy-breadcrumb a:focus-visible {
  color: var(--privacy-gold);
  text-decoration: underline;
}

.page-privacy .privacy-breadcrumb-sep {
  margin: 0 8px;
  font-size: 16px;
  color: rgba(245, 240, 225, 0.4);
}

.page-privacy .privacy-hero-icon {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
}

.page-privacy .privacy-shield-img {
  display: block;
  width: 100px;
  height: 100px;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(230, 184, 0, 0.3));
  border-radius: 50%;
  background: rgba(230, 184, 0, 0.08);
  padding: 8px;
}

.page-privacy .privacy-hero-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 30px;
  font-weight: 700;
  font-style: italic;
  color: #fff;
  margin: 0 0 14px;
  letter-spacing: 1px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.page-privacy .privacy-hero-desc {
  font-size: 16px;
  color: rgba(245, 240, 225, 0.88);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

/* ===== 渐变分隔条 ===== */
.page-privacy .privacy-divider {
  height: 6px;
  background: linear-gradient(90deg, var(--privacy-primary) 0%, var(--privacy-gold) 50%, var(--privacy-primary) 100%);
  opacity: 0.6;
}

/* ===== 条款列表区块 ===== */
.page-privacy .privacy-section {
  padding: 48px 16px 36px;
}

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

/* 每个条款项 */
.page-privacy .privacy-item {
  background: #fff;
  border-radius: var(--privacy-radius);
  padding: 20px 20px 16px;
  box-shadow: 0 2px 8px rgba(10, 31, 63, 0.06);
  transition: background-color var(--privacy-transition), box-shadow var(--privacy-transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  border-left: 4px solid var(--privacy-primary);
}

.page-privacy .privacy-item:hover {
  background-color: #faf6ed;
  box-shadow: 0 4px 16px rgba(10, 31, 63, 0.1);
}

.page-privacy .privacy-item:focus-within {
  outline: 2px solid var(--privacy-gold);
  outline-offset: 2px;
}

/* 每个条款底部用渐变细条分隔 */
.page-privacy .privacy-item::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 10%;
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--privacy-gold), transparent);
  opacity: 0.35;
  pointer-events: none;
}

.page-privacy .privacy-item:last-child::after {
  display: none;
}

/* 编号样式 */
.page-privacy .privacy-item-number {
  font-family: 'Courier New', Courier, monospace;
  font-size: 36px;
  font-weight: 700;
  color: var(--privacy-gold);
  line-height: 1;
  letter-spacing: -0.5px;
  flex-shrink: 0;
  display: block;
  margin-bottom: 4px;
}

/* 内容主体 */
.page-privacy .privacy-item-body {
  flex: 1;
  min-width: 0;
}

.page-privacy .privacy-item-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 20px;
  font-weight: 700;
  font-style: italic;
  color: var(--privacy-dark);
  margin: 0 0 8px;
  line-height: 1.3;
}

.page-privacy .privacy-item-summary {
  font-size: 15px;
  color: #4a3a3a;
  margin: 0 0 12px;
  line-height: 1.7;
}

/* ===== 可展开详情 ===== */
.page-privacy .privacy-details {
  margin-top: 4px;
  font-size: 14px;
}

.page-privacy .privacy-details-summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--privacy-primary);
  font-weight: 600;
  cursor: pointer;
  padding: 6px 12px 6px 0;
  border-radius: 4px;
  transition: color var(--privacy-transition), background-color var(--privacy-transition);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 14px;
  user-select: none;
  list-style: none;
}

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

.page-privacy .privacy-details-summary::before {
  content: '+';
  display: inline-block;
  width: 18px;
  height: 18px;
  line-height: 16px;
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--privacy-gold);
  border: 1.5px solid var(--privacy-gold);
  border-radius: 50%;
  transition: transform 0.3s ease, background-color 0.3s ease;
  flex-shrink: 0;
}

.page-privacy .privacy-details[open] .privacy-details-summary::before {
  content: '−';
  background-color: var(--privacy-gold);
  color: #fff;
  transform: rotate(180deg);
}

.page-privacy .privacy-details-summary:hover {
  color: var(--privacy-gold);
  background-color: rgba(230, 184, 0, 0.06);
}

.page-privacy .privacy-details-summary:focus-visible {
  outline: 2px solid var(--privacy-gold);
  outline-offset: 2px;
}

.page-privacy .privacy-details-content {
  padding: 14px 16px 8px;
  margin-top: 6px;
  background: rgba(245, 240, 225, 0.5);
  border-radius: 6px;
  border-left: 3px solid var(--privacy-gold);
  animation: privacy-slide-down 0.3s ease;
}

@keyframes privacy-slide-down {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-privacy .privacy-details-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-privacy .privacy-details-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: #3a2e2e;
  line-height: 1.6;
}

.page-privacy .privacy-details-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--privacy-gold);
  font-weight: 700;
}

.page-privacy .privacy-details-list a {
  color: var(--privacy-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--privacy-transition);
}

.page-privacy .privacy-details-list a:hover {
  color: var(--privacy-gold);
}

/* ===== 底部联系区块 ===== */
.page-privacy .privacy-cta {
  background: var(--privacy-primary);
  padding: 48px 16px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-privacy .privacy-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 30% 50%, rgba(230, 184, 0, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.page-privacy .privacy-cta-inner {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-cta-slogan {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 24px;
  font-weight: 700;
  font-style: italic;
  color: var(--privacy-gold);
  margin: 0 0 10px;
  letter-spacing: 0.5px;
}

.page-privacy .privacy-cta-text {
  font-size: 15px;
  color: rgba(245, 240, 225, 0.85);
  margin: 0 0 24px;
  line-height: 1.7;
}

.page-privacy .privacy-cta-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.page-privacy .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 28px;
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: all var(--privacy-transition);
  cursor: pointer;
  border: 0;
  line-height: 1.4;
  min-width: 160px;
}

.page-privacy .btn-gold {
  background: var(--privacy-gold);
  color: var(--privacy-primary);
  box-shadow: 0 2px 10px rgba(230, 184, 0, 0.25);
}

.page-privacy .btn-gold:hover,
.page-privacy .btn-gold:focus-visible {
  background: var(--privacy-gold-light);
  box-shadow: 0 4px 20px rgba(230, 184, 0, 0.4);
  transform: translateY(-1px);
}

.page-privacy .btn-outline {
  background: transparent;
  color: rgba(245, 240, 225, 0.9);
  border: 1.5px solid rgba(245, 240, 225, 0.4);
}

.page-privacy .btn-outline:hover,
.page-privacy .btn-outline:focus-visible {
  border-color: var(--privacy-gold);
  color: var(--privacy-gold);
  background: rgba(230, 184, 0, 0.06);
  transform: translateY(-1px);
}

/* ===== 滚动显现动画 (data-reveal) ===== */
.page-privacy [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 条款错峰显现 (通过JS设置不同的延迟) */
.page-privacy .privacy-item:nth-child(1) { transition-delay: 0.05s; }
.page-privacy .privacy-item:nth-child(2) { transition-delay: 0.15s; }
.page-privacy .privacy-item:nth-child(3) { transition-delay: 0.25s; }
.page-privacy .privacy-item:nth-child(4) { transition-delay: 0.35s; }

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-privacy .privacy-details-content {
    animation: none;
  }

  .page-privacy .privacy-details-summary::before {
    transition: none;
  }

  .page-privacy .privacy-item {
    transition: none;
  }

  .page-privacy .btn {
    transition: none;
  }

  .page-privacy .privacy-shield-img {
    transition: none;
  }
}

/* ===== 桌面端适配 (>= 768px) ===== */
@media (min-width: 768px) {
  .page-privacy .container {
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-privacy .privacy-hero {
    padding: 60px 24px 72px;
  }

  .page-privacy .privacy-hero-title {
    font-size: 38px;
  }

  .page-privacy .privacy-hero-desc {
    font-size: 17px;
  }

  .page-privacy .privacy-section {
    padding: 56px 24px 44px;
  }

  .page-privacy .privacy-item {
    flex-direction: row;
    align-items: flex-start;
    padding: 24px 28px 20px;
    gap: 20px;
  }

  .page-privacy .privacy-item::after {
    bottom: -16px;
    left: 8%;
    width: 84%;
    height: 2px;
  }

  .page-privacy .privacy-item-number {
    font-size: 48px;
    min-width: 70px;
    text-align: right;
    margin-bottom: 0;
    line-height: 1.1;
  }

  .page-privacy .privacy-item-title {
    font-size: 22px;
  }

  .page-privacy .privacy-item-summary {
    font-size: 15.5px;
  }

  .page-privacy .privacy-details-content {
    padding: 16px 20px 12px;
  }

  .page-privacy .privacy-details-list li {
    font-size: 14.5px;
  }

  .page-privacy .privacy-cta {
    padding: 56px 24px 64px;
  }

  .page-privacy .privacy-cta-slogan {
    font-size: 28px;
  }

  .page-privacy .privacy-cta-text {
    font-size: 16px;
  }

  .page-privacy .privacy-cta-links {
    flex-direction: row;
    justify-content: center;
    gap: 16px;
  }

  .page-privacy .btn {
    min-width: 180px;
    padding: 12px 32px;
    font-size: 15px;
  }
}

/* ===== 大桌面端适配 (>= 1280px) ===== */
@media (min-width: 1280px) {
  .page-privacy .container {
    max-width: 960px;
  }

  .page-privacy .privacy-hero {
    padding: 72px 24px 88px;
  }

  .page-privacy .privacy-hero-title {
    font-size: 44px;
  }

  .page-privacy .privacy-section {
    padding: 64px 24px 52px;
  }

  .page-privacy .privacy-item {
    padding: 28px 36px 24px;
    gap: 28px;
  }

  .page-privacy .privacy-item-number {
    font-size: 56px;
    min-width: 80px;
  }

  .page-privacy .privacy-item-title {
    font-size: 24px;
  }

  .page-privacy .privacy-cta {
    padding: 64px 24px 72px;
  }

  .page-privacy .privacy-cta-slogan {
    font-size: 32px;
  }
}

/* ===== 窄屏安全约束 ===== */
@media (max-width: 420px) {
  .page-privacy .privacy-hero {
    padding: 36px 12px 44px;
  }

  .page-privacy .privacy-hero-title {
    font-size: 24px;
  }

  .page-privacy .privacy-hero-desc {
    font-size: 14px;
  }

  .page-privacy .privacy-section {
    padding: 36px 12px 28px;
  }

  .page-privacy .privacy-item {
    padding: 16px 14px 14px;
  }

  .page-privacy .privacy-item-number {
    font-size: 28px;
  }

  .page-privacy .privacy-item-title {
    font-size: 17px;
  }

  .page-privacy .privacy-item-summary {
    font-size: 13.5px;
  }

  .page-privacy .privacy-cta {
    padding: 36px 12px 44px;
  }

  .page-privacy .privacy-cta-slogan {
    font-size: 20px;
  }

  .page-privacy .btn {
    min-width: 140px;
    padding: 8px 20px;
    font-size: 13.5px;
  }
}