@media screen and (min-width: 1200px) {
  a {
    text-decoration: none !important;
    color: #333333 !important;
    background-color: transparent;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
  }

  div {
    box-sizing: border-box;
  }

  body {
    padding: 0;
    margin: 0;
  }
  .header_750{
    display: none;
  }
  .logo{
    display: block;
  }
  /* 导航栏 */
  .header {
    height: 100px;
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    box-shadow: 0px 6px 14px 1px rgba(0, 0, 0, 0.16);
    z-index: 1000;
  }

  .header_content {
    width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
  }

  .options {
    display: flex;
    color: #777777;
    font-size: 16px;
    height: 100%;
  }

  .option {
    width: 130px;
    display: block;
    text-align: center;
    cursor: pointer;
    height: 100%;
    line-height: 100px;
  }

  .firMenu {
    position: relative;
  }

  .secMenu {
    position: fixed;
    left: 0;
    width: 100vw;
    background-color: rgba(255, 255, 255, 0.8);
    display: none;
    box-shadow: 0px 9px 9px 1px rgba(18, 14, 116, 0.16);
  }

  .header_title {
    display: block;
    width: 130px;
    text-align: center;
    font-size: 16px;
    margin-bottom: 20px;
  }

  .header_title:hover {
    color: #3c37c0;
  }

  .firMenu:hover {
    background: #F0F4FF;
    color: #333333 !important;
  }

  .firMenu:hover .secMenu {
    display: block;
  }

  .language {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    color: #797979;
    border: 1px solid #cbcbcb;
    font-size: 14px;
    margin-left: 75px;
  }
  .logo{
    margin-right: 117px;
  }
  

  .content {
    width: 1200px;
    margin: 0 auto;
  }

  .content_title {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
  }

  .title {
    font-size: 40px;
    color: #333333;
    font-weight: 500;
    display: flex;
    align-items: center;
  }

  .title_en {
    font-weight: 400;
    font-size: 26px;
    color: #999999;
    margin-top: 12px;
  }

  .line {
    width: 250px;
    height: 1px;
    background: #B6B6B6;
    margin-top: 20px;
  }
}
@media screen and (max-width: 1199px) {
  body{
    margin: 0;
    padding: 0;
  }
  div{
    box-sizing: border-box;
  }
  a{
    text-decoration: none !important;
  }
  a:hover,
  a:focus,
  a:active {
      color: inherit;        /* 悬停、聚焦、点击时不改变颜色 */
      text-decoration: none; /* 去掉下划线 */
      outline: none;         /* 去掉点击后的边框高亮 */
  }
  .public_title{
    font-weight: 500;
    font-size: 20px;
    color: #333333;
    text-align: center;
  }
  .public_title_en{
    text-align: center;
    font-weight: 400;
    font-size: 14px;
    color: #999999;
    margin-bottom: 12px;
  }
  .public_title_line{
    width: 150px;
    height: 1px;
    background: #B6B6B6;
    margin: 0 auto;
    margin-bottom: 20px;
  }
}