/* Base styles */
:root {
  --primary-color: #4285f4;
  --secondary-color: #34a853;
  --accent-color: #ea4335;
  --text-color: #333333;
  --light-gray: #f5f5f5;
  --dark-gray: #666666;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
}

body {
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  width: 85%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Navigation */
header {
  background-color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.cta-button {
  background-color: var(--primary-color);
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s;
}

.cta-button:hover {
  background-color: #3367d6;
}

/* Page header */
.page-header {
  padding: 3rem 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.page-header p {
  font-size: 1.1rem;
  color: var(--dark-gray);
  max-width: 700px;
  margin: 0 auto;
}

/* Content section */
.policy-content a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}
  
.policy-content a:hover {
    text-decoration: underline;
    color: #3367d6; /* 这是与导航栏链接 hover 状态相同的颜色 */
}

.content-section {
  padding: 4rem 0;
  background-color: white;
}

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

.policy-section {
  margin-bottom: 3rem;
}

.policy-section:last-child {
  margin-bottom: 0;
}

.policy-section h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #eee;
}

.policy-section h3 {
  font-size: 1.4rem;
  margin: 1.5rem 0 1rem;
  color: var(--text-color);
}

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

.policy-section ul,
.policy-section ol {
  margin: 1rem 0 1.5rem 2rem;
}

.policy-section li {
  margin-bottom: 0.5rem;
}

.policy-date {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #eee;
  color: var(--dark-gray);
  font-style: italic;
}

/* Contact section */
.contact-section {
  padding: 3rem 0;
  background-color: var(--light-gray);
  text-align: center;
}

.contact-section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.contact-section p {
  max-width: 600px;
  margin: 0 auto 1.5rem;
  color: var(--dark-gray);
}

/* Footer */
footer {
  background-color: #333;
  color: white;
  padding: 3rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.footer-info {
  max-width: 400px;
}

.footer-info .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: #ccc;
}

.copyright {
  margin-top: 2rem;
  text-align: center;
  color: #aaa;
  width: 100%;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .page-header h1 {
    font-size: 2rem;
  }

  .policy-section h2 {
    font-size: 1.6rem;
  }

  .policy-section h3 {
    font-size: 1.3rem;
  }

  .nav-links {
    display: none; /* Simplified - would need hamburger menu in real application */
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-info {
    margin-bottom: 2rem;
  }
}