/* 字体配置 */
@font-face {
    font-family: 'PingFang SC';
    src: local('PingFang SC'), local('Microsoft YaHei'), local('SimHei');
    font-weight: normal;
    font-style: normal;
}

/* 默认字体栈 */
:root {
    --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}