.sub_companys{
  margin: 20px 160px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.sub_companys .gallery-container{
  width: calc(100% - 120px);
  padding: 0;
}
.sub_companys .gallery-item {
  flex: 0 0 auto;
  width: 195px;
  height: 90px;
  text-align: center;
}

.sub_companys .gallery-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 0;
}
.sub_companys_btn{
  width: 34px;
  height: 34px;
  cursor: pointer;
}
.footer-nav {
  position: relative;
  width: 100%;
  height: 557px;
  background: url(../img/footbg.jpg);
  background-size: 100% 100%;
  color: #fff;
  padding: 66px 100px 20px 110px;
}
.footer_con{
  display: flex;
  justify-content: space-between;
  align-items: top;
}
.footer_left{
  font-weight: 400;
  font-size: 18px;
  color: #3D3D3D;
  line-height: 32px;
}
.footer_logo{
  height: 51px;
}
.footer_infos{
  display: flex;
  justify-content: flex-start;
  align-items: top;
  gap: 20px;
}
.footer_qrcode_con{
  min-width: 100px;
  font-weight: 400;
  font-size: 14px;
  color: #3D3D3D;
  line-height: 32px;
  text-align: center;
  white-space: nowrap;
}
.footer_qrcode{
  margin: 5px auto 0 auto;
  width: 100px;
}
.footer_right{
  display: flex;
  /* flex-wrap: wrap; */
  gap: 40px;
}

.footer-column {
  flex: 1;
  min-width: 80px;
}

.footer-column h4 {
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  font-size: 18px;
  color: #000000;
  margin-bottom: 20px;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 10px;
}

.footer-column a {
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  font-size: 14px;
  color: #3D3D3D;
  line-height: 14px;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: #002C83;
}

.copyright {
  position: absolute;
  left: 0;
  bottom: 20px;
  width: 100%;
  text-align: center;
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  font-size: 14px;
  color: #605E5E;
  line-height: 20px;
}
.copyright a{
  color: #605E5E;
}

@media (max-width: 768px) {
  
}

@media (max-width: 1600px){

}
/* PC 端 */
@media (max-width: 1440px) {
  .sub_companys{
    margin: 20px 120px;
  }
  .footer-nav {
    height: 390px;
    padding: 47px 70px 14px 75px;
  }
  .footer_left{
    font-size: 16px;
    line-height: 30px;
  }
  .footer_logo{
    height: 36px;
  }
  .footer_qrcode_con{
    width: 70px;
    font-size: 12px;
    line-height: 28px;
  }
  .footer_qrcode{
    margin-top: 25px;
    width: 70px;
  }
  .footer_right{
    gap: 40px;
  }

  .footer-column {
    min-width: 70px;
  }

  .footer-column h4 {
    font-size: 16px;
    margin-bottom: 14px;
  }
}

@media (max-width: 1366px) {
  .sub_companys{
    margin: 20px 70px;
  }
  .footer-nav {
    height: 390px;
    padding: 47px 70px 14px 75px;
  }
  .footer_left{
    font-size: 16px;
    line-height: 30px;
  }
  .footer_logo{
    height: 36px;
  }
  .footer_qrcode_con{
    width: 70px;
    font-size: 12px;
    line-height: 28px;
  }
  .footer_qrcode{
    margin-top: 25px;
    width: 70px;
  }
  .footer_right{
    gap: 60px;
  }

  .footer-column {
    min-width: 70px;
  }

  .footer-column h4 {
    font-size: 16px;
    margin-bottom: 14px;
  }
}