/* Reset some default styles for better cross-browser consistency */
body, html {
  margin: 0;
  padding: 0;
}

/* Center the content vertically and horizontally */
body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f0f0f0; /* 设置页面背景颜色 */
}

/* Style for the container */
.container {
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
  padding: 20px;
  width: 100%;
  max-width: 400px; /* 控制容器的最大宽度 */
}

/* Add some spacing and style for form elements */
.form-group {
  margin-bottom: 15px;
}

/* Style for buttons */
.btn-primary {
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  cursor: pointer;
}

/* Media query for small screens (phones) */
@media (max-width: 768px) {
  body {
    padding: 20px;
  }
  
  .container {
    margin: 0;
  }
}