.navindex1 {
        padding: 0 7.5rem;
    }
  
  .jindu{
    position: absolute;
    left: 0;
    top: 0;
    height: 4px;
    background: #e62129;
    width: 100%;
    animation: jindutiao 3s linear ;
  }
  @-webkit-keyframes jindutiao {
   0% {
    width: 10.3rem;
  }
   100% {
    width: 100%;
  
  }
  }
  @media (max-width: 992px){
    .navindex1 {
      padding: 0px 20px;
    }
    .jindu{
      position: absolute;
      left: 0;
      top: 0;
      height: 4px;
      background: #e62129;
      width: 100%;
      animation: jindutiao 3s linear ;
    }
    @-webkit-keyframes jindutiao {
     0% {
       width:66%;
    
    }
     100% {
       width: 100%;
    
    }
    }
    
    }