* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", Arial, "Microsoft YaHei", sans-serif;
}

body,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
input,
p,
blockquote,
th,
td {
  font-weight: 400;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h4,
h5 {
  margin: 0;
  padding: 0;
}

table {
  border-collapse: collapse;
}

fieldset,
img {
  border: 0;
}

fieldset {
  margin: 0;
  padding: 0;
}

fieldset p {
  margin: 0;
  padding: 0;
}

legend {
  display: none;
}

address,
caption,
em,
strong,
th,
i {
  font-style: normal;
  font-weight: 400;
}

table caption {
  margin-left: -1px;
}

ol,
ul {
  list-style-image: none;
  list-style-position: outside;
  list-style-type: none;
}

q:before,
q:after,
blockquote:before,
blockquote:after {
  content: ””;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.tl {
  text-align: left;
}
.tr {
  text-align: right;
}
.flex {
  display: flex;
}
.justify-between {
  justify-content: space-between;
}