/* 全局样式 */
:root {
  --primary-color: #1890ff;
  --secondary-color: #722ed1;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #fff;
  --bg-light: #f5f7ff;
  --border-radius: 8px;
  --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background-color: var(--bg-color);
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

section {
  padding: 4rem 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center {
  text-align: center;
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* 隐私政策英雄区域 */
.privacy-hero {
  background: linear-gradient(135deg, var(--bg-light), rgba(255, 255, 255, 0.8));
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.privacy-hero h1 {
  font-size: 3rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.hero-updated {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  opacity: 0.8;
}

.hero-effective {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 0;
  margin-bottom: 1.5rem;
  opacity: 0.8;
}


/* 隐私政策内容区域 */
.privacy-content {
  background-color: var(--bg-color);
  padding: 4rem 0;
}

.content-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.policy-section {
  margin-bottom: 3rem;
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border-left: 4px solid var(--primary-color);
  transition: var(--transition);
}

.policy-section:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.policy-section h2 {
  font-size: 1.75rem;
  color: var(--text-color);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--bg-light);
}

.policy-section h2:first-child {
  margin-top: 0;
}

.policy-section h3 {
  font-size: 1.25rem;
  color: var(--text-color);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.policy-section p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.policy-section .copyright {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--bg-light);
}

.policy-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.policy-list li {
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-light);
  line-height: 1.8;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.policy-list li:last-child {
  border-bottom: none;
}

.policy-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2rem;
}

.contact-info {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
}

.contact-info p {
  margin-bottom: 0.5rem;
}

.contact-info strong {
  color: var(--text-color);
  font-weight: 600;
}

.contact-info a {
  color: var(--primary-color);
  font-weight: 600;
}

.contact-info a:hover {
  text-decoration: underline;
}

/* 导航链接激活状态 */
.nav-link.active {
  color: var(--primary-color);
}

.nav-link.active::after {
  width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .privacy-hero {
    padding: 4rem 0 3rem;
  }

  .privacy-hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .hero-updated,
  .hero-effective {
    font-size: 0.875rem;
  }


  .privacy-content {
    padding: 3rem 0;
  }

  .policy-section {
    padding: 1.5rem;
    margin-bottom: 2rem;
  }

  .policy-section h2 {
    font-size: 1.5rem;
  }

  .policy-section h3 {
    font-size: 1.125rem;
  }

  .policy-list li {
    padding: 0.625rem 0;
    padding-left: 1.25rem;
    font-size: 0.9rem;
  }
}