/* 全局样式 */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  /* 添加背景图片并设置透明度 */
  background: linear-gradient(rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.8)), url('background.jpg');
  background-size: cover;
  background-position: center;
}

/* 头部样式 */
header {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
}

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

/* logo 样式 */
.logo {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 100px; /* 可根据实际 logo 大小调整 */
  height: auto;
}

/* 主内容样式 */
main {
  text-align: center;
  padding: 60px 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.8);
}

.app-info img {
  width: 300px;
  height: 300px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.app-info h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.app-info p {
  font-size: 16px;
  color: #777;
  margin-bottom: 30px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.download-button {
  display: inline-block;
  background-color: #007aff;
  color: #fff;
  padding: 12px 30px;
  text-decoration: none;
  border-radius: 30px;
  font-size: 18px;
  transition: background-color 0.3s ease;
}

.download-button:hover {
  background-color: #0056b3;
}

/* 底部样式 */
footer {
  text-align: center;
  padding: 20px 0;
  background-color: rgba(255, 255, 255, 0.8);
  border-top: 1px solid #eee;
}

footer p {
  font-size: 14px;
  color: #777;
  margin: 0;
}