@font-face {
  font-family: 'OPPOSans';
  src: url('https://datafh.cn/upload/2024/08/OPPOSans3.0cn-Regular.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

* {
  font-family: 'OPPOSans', 'PingFang SC', 'Microsoft YaHei', sans-serif !important;
}

body {
  background: url('https://datafh.cn/upload/2026/04/topbanner3.png') !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  background-attachment: fixed !important;
}