.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom .active { color: var(--black-666); }
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom .active:before { display: none; }
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li.active .top_box { color: var(--color-active); position: relative; }
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li.active .top_box:before { opacity: 1; }
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li .top_box:before {
      position: absolute;
    content: '';
    top: .17rem;
    left: -.22rem;
    width: 8px;
    height: 2px;
  background: #00479D;
  opacity: 0;
 
}

.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li .bom_box { display: none; }
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li .bom_box .oneBox { display: block;     font-size: var(--font14); line-height: 2;}
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li .bom_box .active{color:var(--color-active)}
.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom .active { padding-left: 0; }

/*.product-knoewledge-wrap .innerbox .download-list .left .itemtab .on .bottom li.active .bom_box { display: block;padding-left: 0.4rem; }*/

.headquarters-wrap .innerbox .right .itemlist .item .gridlist {grid-template-columns: repeat(1, 1fr);  gap: 0.5rem;}
.about-section-three .itemlist .item .bottominfo .image {display: inline-block;}