@font-face {
    font-family: 'HarmonyOs';
    src: url('../fonts/HarmonyOs.ttf') format('truetype');
}

body {
    font-family: 'HarmonyOs', sans-serif;
    font-size: 16px;
    color: #333;
    background-color: #ffff;
    margin: 0;
    padding: 0;
}