.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; }*/







.footer-wrapper .footerlist .f-center .innerbox .item .medialist .icon { position: relative; z-index: 1; }
.footer-wrapper .footerlist .f-center .innerbox .item .medialist .icon .iconB { width: 1.2rem; height: 1.2rem; position: absolute; bottom: calc(100% + 0.2rem); background: #000000; 
    display: flex;
      -webkit-transition: all 0.3s ease;
      -o-transition: all 0.3s ease;
      transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    align-items: center;
    justify-content: center; border-radius: 5px; box-shadow: 0 0px 20px 1px #00000021;}
    .footer-wrapper .footerlist .f-center .innerbox .item .medialist .icon:hover .iconB { opacity: 1; visibility: visible; }
.footer-wrapper .footerlist .f-center .innerbox .item .medialist .icon .iconB img { width: 100%; filter: unset !important; }
.footer-wrapper .footerlist .f-center .innerbox .item .medialist .icon .iconB::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 12px 0 12px;
  border-color: #FFFFFF  transparent transparent transparent;
  position: absolute;
  top:100%;
}


.news-detail-wrap .innerbox .desc {     text-align: left;     margin: 0 auto;
    margin-top: 0.8rem;
    line-height: calc(32 / 18);
    text-align: left;
    max-width: 70%; 
}


@media (max-width:990px) {
    .news-detail-wrap .innerbox .desc { max-width: 100%; }
    }