body {
  font-family: Arial, sans-serif;
  text-align: center;
  padding: 20px;
  background-color: #f4f4f9;
  color: #333;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 30px;
  background: white;
  border-radius: 15px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #d9534f;
  margin-bottom: 20px;
}

.language-switcher {
  margin-bottom: 20px;
}

.language-switcher select {
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
  font-size: 16px;
}

.qr-code {
  margin: 20px 0;
}

.qr-code img {
  width: 200px;
  height: 200px;
  border: 5px solid #d9534f;
  border-radius: 10px;
}

.warning {
  color: #d9534f;
  font-weight: bold;
  font-size: 18px;
  margin: 20px 0;
}

h2 {
  color: #333;
  margin-top: 30px;
}

ul {
  text-align: left;
  margin: 20px auto;
  max-width: 600px;
}

li {
  margin: 10px 0;
}

.tip {
  font-style: italic;
  color: #5cb85c;
  margin-top: 20px;
}

.footer {
  margin-top: 40px;
  padding: 15px;
  background: #333;
  color: white;
  text-align: center;
  border-radius: 10px;
}

.footer a {
  color: #5cb85c;
  text-decoration: none;
  font-weight: bold;
}

.footer a:hover {
  text-decoration: underline;
}