.three-line {
    position: relative;
    display: inline-block;
    text-decoration: none;
  }

.three-line:after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -3px;
    margin: 0 auto;
    width: 40%;
    height: 0.1em; 
    background: var(--primary-color); 
  }

.three-line:before {
    content: "";
    position: absolute;
    right: 0;
    left:0;
    margin: 0 auto;
    bottom: -6px; 
    width: 20%;
    height: 0.1em; 
    background: var(--primary-color); 
  }
  

.three-line-us{
    position: relative;
    display: inline-block;
    text-decoration: none;
  }

.three-line-us:after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 50%;
    height: 0.1em; 
    background: var(--primary-color); 
  }

.three-line-us:before {
    content: "";
    position: absolute;
    right: 0;
    left:0;
    margin: 0 auto;
    bottom: -6px; 
    width: 30%;
    height: 0.1em; 
    background: var(--primary-color); 
  }