/*弹出窗口时，点击窗口旁边不生效*/
#overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 99;
    /* 确保遮罩层在模态框之下 */
}
.modal {
  display: none;
  /* 默认隐藏 */
  position: fixed;
  /* 固定位置 */
  z-index: 100;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  /* 允许滚动条 */
  background-color: #fefefe;
  border: 1px solid #888;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  border-radius: 5px;
}
.btn {
    padding: 5px 10px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    width: 4em;
    box-sizing: border-box;
    margin-right: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    /* float:right;
    margin-right:10px; */
}
.modal-drag-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    background-color: #1E90FF;
    color: white;
    padding: 5px 10px;
    cursor: move;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.modal-drag-bar .close {
    cursor: pointer;
    user-select: none;
}
.modal-content {
  padding: 15px 20px;
}

/* 关闭按钮的样式 */
.close {
  color: white;
  float: right;
  margin-right: 10px;
  font-size: 32px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}
.tx {
    /* 行高 */
    line-height: 150%;
    /* 每段落缩进 */
    text-indent: 2em;
     /* 保留空白符序列，包括换行符，并且在需要时自动换行 */
    white-space: pre-wrap;
    /* 字体 */
    font-family: "Times New Roman", Times, serif;
    /* 字体大小 */
    font-size: 16px;
    /* 字体颜色 */
    color: blue;
    /* padding-left: 1em; */
}