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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue',
    Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9fafb;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e5e7eb;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  color: #111;
  margin-bottom: 8px;
}

.last-updated {
  font-size: 14px;
  color: #6b7280;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  color: #111;
  margin-top: 32px;
  margin-bottom: 16px;
}

h3 {
  font-size: 16px;
  font-weight: 600;
  color: #374151;
  margin-top: 20px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
  color: #4b5563;
}

ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
  color: #4b5563;
}

.highlight-box {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 8px 8px 0;
}

.highlight-box p {
  margin-bottom: 0;
  color: #92400e;
}

.info-box {
  background: #eff6ff;
  border-left: 4px solid #3b82f6;
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 8px 8px 0;
}

.info-box p {
  margin-bottom: 0;
  color: #1e40af;
}

.contact-box {
  background: #f3f4f6;
  padding: 20px;
  border-radius: 8px;
  margin-top: 20px;
}

.contact-box a {
  color: #2563eb;
  text-decoration: none;
}

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

footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #e5e7eb;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #6b7280;
  text-decoration: none;
  font-size: 14px;
}

.footer-links a:hover {
  color: #111;
}

.lang-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.lang-tab {
  padding: 8px 20px;
  border: 1px solid #e5e7eb;
  background: #fff;
  border-radius: 6px;
  font-size: 14px;
  color: #6b7280;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-tab:hover {
  border-color: #3b82f6;
  color: #3b82f6;
}

.lang-tab.active {
  background: #3b82f6;
  border-color: #3b82f6;
  color: #fff;
}

.lang-content {
  display: none;
}

.lang-content.active {
  display: block;
}

@media (max-width: 640px) {
  body {
    padding: 12px;
  }

  .container {
    padding: 24px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 18px;
  }
}