.content > div:first-child {
  display: flex;
  justify-content: space-between;
  padding: 0.35rem 1.82rem 0.3rem 1.82rem;
  background-color: #fff;
  border-radius: 0.1rem 0.1rem 0 0;
  box-shadow: 0rem 0.03rem 0.2rem 0.01rem rgba(0, 0, 0, 0.07);
}

.content {
  transform: translateY(-0.5rem);
}

/* 划过效果 */
.content > div:first-child > a {
  position: relative;
  padding-bottom: 0.11rem;
  box-sizing: border-box;
  font-family: Microsoft YaHei, Microsoft YaHei;
  font-weight: 400;
  font-size: 0.18rem;
  color: #000000;
  cursor: pointer;
  border-bottom: 0.02rem solid #fff;
  padding-bottom: 0.09rem;
  transition: var(--m_tran) border font-weight;
}

.content > div:first-child > a:after {
  content: "";
  width: 0;
  height: 0.02rem;
  background: #b6002a;
  position: absolute;
  top: 100%;
  left: 50%;
  transition: all 0.5s;
}

.content > div:first-child > .active:after {
  left: 0;
  width: 100%;
}

.content > div:first-child > a:hover:after {
  left: 0;
  width: 100%;
}

.content > div:first-child > a:hover {
  font-weight: bold;
}
.content > div:first-child > .active {
  font-weight: bold;
}

/* 划过效果结束 */

.content > div:nth-child(2) {
  margin-top: 1.21rem;
  display: flex;
}

.content > div:nth-child(2) > div:first-child {
  flex: 1;
}

.about_us_title {
  font-family: Microsoft YaHei, Microsoft YaHei;
  font-weight: bold;
  font-size: 0.36rem;
  color: #262626;
  margin-bottom: 0.2rem;
}

.about_us_title_line {
  width: 0.58rem;
  height: 0.02rem;
  background: #b30000;
  margin-bottom: 0.45rem;
}

.content > div:nth-child(2) > div:first-child > p:nth-child(3) {
  font-size: 0.16rem;
  color: #585858;
  line-height: 0.3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
  margin-bottom: 0.3rem;
}

.content > div:nth-child(2) > div:first-child > p:nth-child(4) {
  font-size: 0.16rem;
  color: #585858;
  line-height: 0.3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
  margin-bottom: 0.3rem;
}

.content > div:nth-child(2) > div:first-child > p:nth-child(5) {
  font-size: 0.16rem;
  color: #585858;
  line-height: 0.3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.about_us_footer {
  width: 14rem;
  height: 2.21rem;
  background: #ffffff;
  border-radius: 0rem 0rem 0.8rem 0rem;
}

.about_us_footer_item {
  flex: 1;
}

.about_us_footer_item:not(:last-of-type)::after {
  content: "";
  display: block;
  width: 0rem;
  height: 0.8rem;
  border: 0.01rem solid #e2e2e2;
}

.about_us_footer_item > div > img {
  width: 0.71rem;
  height: 0.66rem;
  margin-right: 0.34rem;
      object-fit: contain;
}

.about_us_footer_item > div {
  flex: 1;
}

.big_number {
  font-family: Poppins, Poppins;
  font-size: 0.7rem;
  color: #000000;
  line-height: 0.6rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
  margin-right: 0.05rem;
}

.unit {
  font-size: 0.2rem;
  color: #8b8b8b;
  text-align: left;
  line-height: 0.3rem;
  font-style: normal;
  text-transform: none;
}

.footer_description {
  font-weight: 400;
  font-size: 0.16rem;
  color: #a7a7a7;
  line-height: 0.3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
  margin-top: 0.13rem;
}

.about_us_6 {
  height: auto !important;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.product_item {
  width: 6.86rem;
  height: 6.86rem;
  overflow: hidden;
  transition: border-radius var(--m_tran);
}

.product_item_mask {
  background: transparent;
  z-index: 1;
  transition: background var(--m_tran);
}

.product_item:hover .product_item_mask {
  background: rgba(0, 0, 0, 0.61);
}

.product_item_line {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0.07rem;
  background: #b6002a;
  transition: width var(--m_tran);
  z-index: 3;
}

.product_item:hover .product_item_line {
  width: 6.86rem;
}

.product_item_title {
  font-weight: bold;
  font-size: 0.3rem;
  color: #ffffff;
  line-height: 0.38rem;
  text-align: center;
  font-style: normal;
  text-transform: none;
  flex: 1;
  transition: transform var(--m_tran);
}

.product_item:hover .product_item_title {
  transform: translateY(1.97rem);
}

.product_item_icon_box {
  border-top: 0.02rem solid rgba(255, 255, 255, 0.63);
  opacity: 0;
  transition: opacity var(--m_tran);
}

.product_item_description {
  font-size: 0.18rem;
  line-height: 0.3rem;
  color: #ffffff;
  text-align: center;
  font-style: normal;
  text-transform: none;
  padding-top: 0.38rem;
}

.product_item:hover .product_item_icon_box {
  opacity: 1;
}

.product {
  z-index: 2;
  padding: 0.53rem 1.32rem;
}

.product_list {
  margin-bottom: 0.79rem;
}

.kefu {
  position: fixed;
  bottom: 40%;
  right: 0.2rem;
  z-index: 999;
}

.kefu_content {
  width: 0.4rem;
  height: 0.4rem;
  background: #ffffff;
  box-shadow: 0rem 0.03rem 0.1rem 0.01rem rgba(0, 0, 0, 0.13);
  border-radius: 0.02rem 0.02rem 0.02rem 0.02rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.kefu_content > img {
  width: 0.28rem;
  height: 0.21rem;
}

.kefu_footer {
  width: 0.4rem;
  height: 0.2rem;
  background: #ffffff;
  box-shadow: 0rem 0.03rem 0.1rem 0.01rem rgba(0, 0, 0, 0.13);
  border-radius: 0.02rem 0.02rem 0.02rem 0.02rem;
  margin-top: 0.05rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.kefu_footer > img {
  width: 0.17rem;
  height: 0.08rem;
}

@media only screen and (max-width: 1024px) {
.content > div:first-child{
  padding: 0.3rem 0.3rem 0.15rem 0.3rem;
  display: block;
  height: auto;
    overflow: hidden;
  

}
.content > div:first-child > a{
  font-size: 0.24rem;
  width: 33.3%;
    float: left;
    text-align: center;
    margin-bottom: .1rem;

}
.content > div:nth-child(2){
  margin-top: .5rem;
}
.about_us_title{
  font-size: 0.34rem;
}
.content > div:nth-child(2) > div:first-child > p:nth-child(3){
  font-size: 0.24rem;
  line-height: 0.45rem;
}
.content > div:nth-child(2) > div:first-child > p:nth-child(4){
    font-size: 0.24rem;
  line-height: 0.45rem;
}
.content > div:nth-child(2) > div:first-child > p:nth-child(5){
     font-size: 0.24rem;
  line-height: 0.45rem;
}
.content > div:nth-child(2) > div:first-child > p{
     font-size: 0.3rem;
  line-height: 0.45rem;
}
.about_us_footer{
  display: block;
  height: auto;
  width: 100%;
  overflow: hidden;
}
.about_us_footer_item {
  flex: 1;
  width: 50%;
  justify-content: left;
  float: left;
  margin-bottom: .2rem;
}
.about_us_footer_item:not(:last-of-type)::after{
  border: none;
}
.about_us_footer_item > div {
  flex: 1;
  justify-content: flex-start;

}
.footer_description{
  font-size: 0.24rem;
}
.unit{
  font-size: 0.24rem;
}
.product_list {
  display: block;
  height: auto;
}
.product_item{
  width: 100%;
  height: auto;
  margin-bottom: .3rem;
}
.product_item_description{
  font-size: 0.24rem;
}
}