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

html, body {
  height: auto;
  min-height: 100%;
}

body {
  font-family: 'Roboto', sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
}

header {
  background-color: rgba(255, 255, 255, 0.9);
  width: 100%;
  text-align: center;
  padding: 20px 0;
  position: relative;
  z-index: 1;
}

.background {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 0;
}

.container {
  background-color: rgba(255, 255, 255, 0.9);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  max-width: 600px;
  text-align: center;
}

h2 {
  color: #333;
  font-size: 28px;
  margin-bottom: 15px;
}

p {
  color: #666;
  font-size: 18px;
  margin-bottom: 25px;
}

h3 {
  color: #444;
  font-size: 24px;
  margin: 20px 0 15px;
}

ul {
  list-style-type: none;
  padding: 0;
  margin: 15px 0 25px;
}

li {
  text-align: left;
  margin: 12px 0;
  position: relative;
  padding-left: 25px;
}

li::before {
  content: "✔️";
  position: absolute;
  left: 0;
  color: #007BFF;
}

strong {
  color: #007BFF;
}

.download-button {
  background-color: #007BFF;
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 18px;
  transition: background-color 0.3s, transform 0.2s;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.5);
}

.download-button:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
}

footer {
  background-color: rgba(255, 255, 255, 0.9);
  width: 100%;
  text-align: center;
  padding: 20px 0; /* 增加底部内边距 */
  position: relative;
  z-index: 1;
}

.footer-links {
  margin-top: 10px;
}

.footer-links a {
  color: #007BFF;
  text-decoration: none;
}

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

@media (max-width: 600px) {
  h2 {
      font-size: 24px;
  }

  h3 {
      font-size: 20px;
  }

  .download-button {
      width: 100%;
  }
}
.policy-container {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

h2 {
  color: #333;
  margin-top: 20px;
}

p {
  color: #666;
  line-height: 1.6;
}