@font-face {
  font-family: "SYYH";
  src: url("../font/SourceHanSansCN-Regular.ttf");
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    font-size: calc(100vw / 38.4);
    height: 100%;
}

a {
    text-decoration: none;
}

body {
    width: 100%;
    height: 100%;
}

.flex {
    display: flex;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.flex-row {
    display: flex;
    flex-direction: row;
}

.justify-center {
    justify-content: center;
}

.align-center {
    align-items: center;
}

.item-center {
    align-items: center;
}

.flex-1 {
    flex: 1;
}