body {
 font-family: yahei, sans-serif;
 margin:20px;
 background-color: #f4f4f4;
}

    .ql {
 width:90%;
 margin:0 auto;
 padding:20px;
 background: #fff;
 border-radius:8px;
 box-shadow:1px 5px rgba(0,0,0,0.1);
}
h1{
text-align: center;
}
h3{
text-align: center;

}

p{
text-align: center;
color:gray;

}
h5{
text-align: center;

}
hr{
opacity: 0.2;

}

img,video{
width: 100%;
border-radius: 5px;
}

        .toggle-text {
 color: #007bff;
 cursor: pointer;
 text-decoration: underline;
}

.toggle-text:hover {
 color: #0056b3;
}

.content {
 display: none; /* 初始设置为隐藏 */
 margin-top:10px;
 padding:10px;
 background: eef;
 border:1px solid #007bff;
 border-radius:5px;
}

a{
color: #006BFF;
text-decoration: none;
  transition: text-decoration 0.3s ease; /* 可选：添加过渡动画 */
}

a:hover {
  text-decoration: underline; /* 鼠标触碰时显示下划线 */
}