body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  padding-bottom: 60px; /* 确保至少有40px的空间，加上一些额外的空间以保证视觉效果 */
}


.active {
  background-color: #498ee2; /* 选择一个显眼的颜色 */
  color: white;
}

.navbar {
  background-color: #333;
  overflow: hidden;
  font-size: 16px;
}

.navbar a {
  float: left;
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.navbar a:hover {
  background-color: #ddd;
  color: black;
}


.container {
  width: 80%;
  margin: 20px auto 50px; /* Adjusted bottom margin */
  background: white;
  padding: 20px;
}

.form-container {
  border: 2px solid #ccc;
  padding: 20px;
}

.form-section {
  border: 1px solid #ccc;
  padding: 15px;
  margin-bottom: 20px;
  background-color: #fff;
}

.form-section h2 {
  background-color: #eee;
  padding: 10px;
  margin: -15px -15px 15px -15px;
}

label {
  display: block;
  margin: 10px 0 5px;
}

input[type="text"],
input[type="email"],
input[type="number"],
select {
  width: 100%;
  padding: 8px;
  margin-bottom: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  box-sizing: border-box;
}

button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
  border-radius: 5px; /* 设置圆角大小为5px */
}

button:hover {
  background-color: #45a049;
}

.add-button {
  background-color: #f0f0f0; /* Light grey background */
  color: black;
  border: 1px solid #ccc;
}

.add-button:hover {
  background-color: #e7e7e7; /* Slightly darker grey on hover */
}

footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 10px;
  bottom: 0;
  /* width: 100%; */
}

input[type="file"] {
  display: none; /* 这会隐藏原生的文件上传按钮 */
}

.custom-file-upload {
  display: inline-block;
  padding: 6px 12px;
  cursor: pointer;
  background-color: #4CAF50; /* Green */
  color: white;
  border: none;
  border-radius: 4px;
  margin-bottom: 10px;
}

.custom-file-upload:hover {
  background-color: #45a049;
}


@media (max-width: 768px) {
  .container, .form-container {
    width: 95%;
  }
}