html body {
  margin: 0;
  padding: 0;
  height: 100vh;
  font-family: 'SourceHanSansCN-Medium';
}
.wrap {
  height: 100%;
  background-image: url(./img/bg.png);
  background-position: center;
  background-size: 100% 100%;
  position: relative;
  min-width: 1100px;
  min-height: 800px;
}
.content {
  width: 916px;
  height: 500px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
}
.section-1 {
  margin-top: 63px;
  font-size: 32px;
  text-align: center;
}
.section-2 {
  margin: 58px 91px 0 90px;
  text-indent: 2em;
  font-size: 18px;
  line-height: 32px;
}
.section-3 {
  margin: 0px 91px 0 90px;
  font-size: 18px;
  line-height: 24px;
  text-align: right;
}
.margin-top-40 {
  margin-top: 40px;
}