.cls-1 {
    fill: #8eabd2;
    mix-blend-mode: multiply;
    opacity: .4;
    }
    .cls-2 {
    fill: none;
    stroke: #231815;
    stroke-width: .5px;
    }
    .cls-2, .cls-3 {
    stroke-miterlimit: 10;
    }
    .cls-4 {
    isolation: isolate;
    }
    .cls-3 {
    fill: #fff;
    stroke: #6a89a0;
    stroke-width: 2.13px;
    }
    .cls-5 {
    fill: #9fa0a0;
    }
    
    #po-group {
      #po-text,#po-text-line,#po-line,#po {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #po-group:hover {
      #po-text {
      fill: #FFF;
      }
      #po-text-line {
      stroke: #5a739f;
      fill: #5a739f;
    stroke-width: 4px;
      }
      #po-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #po {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
    
    #africa-group {
      #africa-text,#africa-text-line,#africa-line,#africa {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #africa-group:hover {
      #africa-text {
      fill: #FFF;
      }
      #africa-text-line {
      stroke: #5a739f;
      fill: #5a739f;
    stroke-width: 4px;
      }
      #africa-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #africa {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
    
    #me-group {
      #me-text,#me-text-line,#me-line,#me {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #me-group:hover {
      #me-text {
      fill: #FFF;
      }
      #me-text-line {
      stroke: #5a739f;
      fill: #5a739f;
    stroke-width: 4px;
      }
      #me-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #me {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
    
    #india-group {
      #india-text,#india-text-line,#india-line,#india {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #india-group:hover {
      #india-text {
      fill: #FFF;
      }
      #india-text-line {
      stroke: #5a739f;
      fill: #5a739f;
    stroke-width: 4px;
      }
      #india-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #india {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
    
    #asean-group {
      #asean-text,#asean-text-line,#asean-line,#asean {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #asean-group:hover {
      #asean-text {
      fill: #FFF;
      }
      #asean-text-line {
      stroke: #5a739f;
      fill: #5a739f;
    stroke-width: 4px;
      }
      #asean-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #asean {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
    
    #csa-group {
      #csa-text,#csa-text-line,#csa-line,#csa {
      transition: all 0.3s cubic-bezier(0.45, 0, 0.55, 1);
      }
    }
    #csa-group:hover {
      #csa-text {
      fill: #FFF;
      }
      #csa-text-line {
      stroke: #5a739f;
      fill: #5a739f;
      stroke-width: 4px;
      }
      #csa-line {
      stroke: #5a739f;
      stroke-width: 1px;
      }
      #csa {
      fill: #0078F0;
      filter: url(#blurEffect);
      }
    }
  
  <defs>
    <filter id="blurEffect">
      <feGaussianBlur in="SourceGraphic" stdDeviation="1" />
    </filter>
  </defs>