body {
      width: 100%;
      height: 100%;
  }
  .video {
      object-fit: fill;
      width: 100%;
      height: 100vh;
      position: fixed;
      right: 0;
      bottom: 0;
      left: 0;
      top: 0;
  }
  .btn_jump {
      height: 46px;
      padding: 0 20px;
      color: #fff;
      border-radius: 48px;
      font-size: 18px;
      text-align: center;
      line-height: 46px;
      backdrop-filter: blur(15px);
      position: absolute;
      top: 14px;
      right: calc(50% - 230px);
      cursor: pointer;
    text-decoration: none;
  }
  .btn_video {
      width: 240px;
      height: 46px;
      color: #fff;
      border-radius: 48px;
      font-size: 18px;
      text-align: center;
      line-height: 46px;
      backdrop-filter: blur(15px);
      position: absolute;
      bottom: 14px;
      left: calc(50% - 120px);
      cursor: pointer;
  }
  .fengmian {
      width: 100%;
      height: 100%;
      position: fixed;
      right: 0;
      bottom: 0;
      left: 0;
      top: 0;
  }
  .video_div {
      max-width: 100%;
      height: 1280px;
      position: relative;
  }
/* ---预报到未开始--- */
.welcome{
    position: relative;
    width: 100%;
    height: 100%;
    background:url('../images/welLogo1.jpg');background-size: 100% 100%;
}
.welcome img{
    position: absolute;
    width: 135px;
    height: 135px;
    left: 58px;
    top: 56px;
}
.welBox{
    width: 100%;
    background: #2144A6;
    border-radius: 10px;
    opacity: 0.88;
    position: absolute;
    left: 0;
    bottom: 82px;
    text-align: center;
    padding-top: 52px;
    padding-bottom:53px;
    box-sizing: border-box;
}
.welBox .title{
    font-size: 50px;
    font-family: PingFangSC-Medium;
    font-weight: 600;
    color: #FFFFFF;
    line-height: 70px;
    margin-bottom: 17px;
}
.welBox .text{
    font-size: 24px;
    font-family: PingFangSC-Regular;
    color: rgba(255,255,255,0.8);
    line-height: 33px;
}
/* ---预报到未开始--- */

  @media only screen and (max-width: 900px) {
      .video_div {
          max-width: 100%;
          height: 100%;
      }
      .vjs-poster img {
          object-fit: fill;
      }
      .btn_jump {
          font-size: 30px;
          top: 9px;
          right:20px;
      }
      .video-js .vjs-tech {
          object-fit: fill;
      }
      .btn_video {
          font-size: 30px;
          bottom: 14px;
      }
    /* ---预报到未开始-- */
    body{
        background: #FFFFFF;
    }
    .welcome{
       
        background:url('../images/welLogo1.jpg') center;
        background-size: cover;
    }
    .welcome img{
        width: 45px;
        height: 45px;
        left: 18px;
        top: 17px;
    }
    .welBox{
        width: calc(100% - 24px);
        top: 100px;
        left: 50%;
        transform: translatex(-50%);
        padding-top: 10px;
        padding-bottom:10px;
        bottom: auto;
    }
    .welBox .title{
        font-size: 20px;
        line-height: 40px;
        margin-bottom: 5px;
    }
    .welBox .text{
        font-size: 18px;
        line-height: 40px;
        text-align: left;
        padding-left: 15px;
        padding-right: 15px;

    }
.indent{
 text-indent:36px;}
    /* ---预报到未开始-- */
  }