* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border: none;
    box-shadow: none;
    text-decoration: none;
    color: #FFFFFF;
}
html,
body {
    width: 100%;
    height: 100%;
    /* font-size: 56px;
    line-height: 56px; */
    overflow: hidden;
    font-family: "Source Han Sans CN","Microsoft YaHei","黑体","宋体","微软雅黑",sans-serif;
}
body { 
    position: relative; 
    opacity: 0;
    background-color: #050B20;
}
ul li,
ol li {
  list-style: none;
}
a,a:link,a:visited,a:hover,a:active {
  color: #595959;
  text-decoration: none;
  outline: none ;
  cursor: pointer;
}
img {
  display: block;
}
em,i {
  font-style: normal;
}
button,input,textarea {
  outline: none;
  border: none;
}

/* 公用 */
.f {
	display: flex;
}
.f-center {
    justify-content: center;
}
.f-vertical-center {
    align-items: center;
}
.f-between {
    justify-content: space-between;
}
.f-end {
    justify-content: flex-end;
}
.f-align-end {
    align-items: flex-end;
}
.f-column {
  flex-direction: column;
}
.f-flow {
	flex-flow: column;
	justify-content: space-between;
}