* {
  margin: 0;
  padding: 0;
}

html,
body {
  font-family: PingFangSC, PingFangSC-Regular;
  font-size: 12px;
  text-align: center;
  background: #FFF;
  color: #000;
  scroll-behavior: smooth
}

ol,
ul,
li {
  list-style: none;
}

img {
  border: 0;
  vertical-align: middle;
}

body {
  color: #000000;
  background: #FFF;
  text-align: center;
}

.clear {
  clear: both;
  height: 1px;
  width: 100%;
  overflow: hidden;
  margin-top: -1px;
}

/*去除a标签下划线*/
a {
  text-decoration: none;
  color: white;
}

/*去除未被访问的a标签的下划线*/
a:link {
  text-decoration: none;
}

/*去除已经被访问过的a标签的下划线*/
a:visited {
  text-decoration: none;
}

/*去除鼠标悬停时的a标签的下划线*/
a:hover {
  text-decoration: none;
}

/*去除正在点击的a标签的下划线（鼠标按下，尚未松开）*/
a:active {
  text-decoration: none;
}

/*去除获得焦点的a标签的下划线（被鼠标点击过）*/
a:focus {
  text-decoration: none;
}

.scrollhead {
  background: rgba(64, 139, 226, 0.8);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

input:focus{
  border: 1px solid #e4e4e4;
}