/* styles.css */
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  color: #333;
  background-color: #f2f4f8;
  line-height: 1.5;
}

#language-selector {
  position: fixed;
  top: 10px;
  right: 10px;
  padding: 6px;
  font-size: 14px;
  border-radius: 4px;
  border: 1px solid #ddd;
  background-color: white;
}

.landing-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

.logo {
  max-width: 100px;
  height: 100px;
  margin: 20px auto;
  display: block;
  border-radius: 50%; /* 圆形剪裁 */
}

header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 24px;
  margin: 10px 0;
}

header p {
  font-size: 16px;
  color: #666;
  margin: 5px 0 20px;
}

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.feature {
  flex: 1;
  min-width: 150px;
  max-width: 280px;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  text-align: center;
}

.download {
  text-align: center;
  padding: 20px;
  margin-top: 20px;
}

.download-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.qr-code {
  max-width: 120px;
}

.app-store-button {
  display: inline-block;
  padding: 8px 16px;
  background: #007AFF;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background 0.3s;
}

.app-store-button:hover {
  background: #0056b3;
}

footer {
  text-align: center;
  padding: 20px;
  margin-top: 20px;
  color: #666;
  font-size: 14px;
}