* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
*::before,
*::after {
  box-sizing: border-box;
}
ul,
ol,
li {
  list-style: none;
}
button,
input {
  outline: none;
}
input:focus {
  outline: none;
}
img {
  vertical-align: top;
}
a {
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
}
.clearfix::after {
  content: "";
  clear: both;
}
/* 设置字体 */
html {
  font-size: calc(100 * 100vw / 1920);
}
body {
  font-size: 0.14rem;
  line-height: 1.25;
  font-family: Source Han Sans CN, Source Han Sans CN-Regular, sans-serif;
}
body.lock {
  overflow: hidden;
}
@media (max-width: 768px) {
  html {
    font-size: calc(76.8 * 100vw / 768);
  }
}
/* 限制最大字体 */
@media (min-width: 1921px) {
  html {
    font-size: 100px;
  }
}