body {
    width: 100%;
    max-width: 1920px;
    margin: 0;
    box-sizing: border-box;
    font-family: SourceHanSansCN-Light;
    color: #232323;
    font-size: large;
  }

  .content-background {
    background-position: center;
  }

  .content-height-max {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    min-height: 1000px;
    background-repeat: no-repeat;
  }

  .content-height-small {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    min-height: 750px;
    background-repeat: no-repeat;
  }

  .content-height-mini {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    min-height: 550px;
    background-repeat: no-repeat;
  }

  .layout-center {
    display: flex;
    width: 100%;
    max-width: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 0;
  }

  .layout-text-center {
    display: flex;
    width: 50%;
    color: #FFF;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .layout-content-row {
    display: flex;
    width: 100%;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
  }

  .layout-content-item-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    width: 50%;
    min-width: 300px;
  }

  .layout-content-item-right {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    width: 50%;
    min-width: 300px;
  }

  .text-content-row {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: start;
    flex-wrap: wrap;
    background-repeat: no-repeat;
  }

  .text-content-item-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 50%;
    min-width: 300px;
  }

  .text-content-item-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 50%;
    min-width: 300px;
  }

  .text-content {
    width: 80%;
    min-width: 300px;
    line-height: 30px;
    padding: 10px 0;
  }

  .text-content-mini {
    width: 65%;
    min-width: 300px;
    line-height: 30px;
    padding: 10px 0;
  }

  .img {
    width: 100%;
  }

  .title-content {
    color: #232323;
    text-transform: none;
  }

  .center-title {
    margin: 50px 0px 30px 0px;
  }

  .line {
    width: 70%;
    height: 1px;
    margin: 0px 20px 20px 20px;
    background-color: #333;
    transform: scaleY(0.5);
    opacity: 0.5;
  }