.line1 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 1;
}

.line2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 2;
}

.line3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 3;
}

.line4 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 4;
}

.line5 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 5;
}

.line6 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  -webkit-line-clamp: 6;
}

* {
  margin: 0;
  padding: 0;
}

.aboutUs {
  margin-top: 1.2rem;
}

.aboutUs .about-banner {
    position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  height: 4rem;
  /*padding-left: 3.36rem;*/
  /*background: url('../img/aboutUs/banner.png') no-repeat;*/
  /*background-size: 100% 100%;*/
  box-sizing: border-box;
}

.aboutUs .about-banner img{
    width: 100%;
    display: block;
    object-fit: cover;
}

.aboutUs .about-banner .banner-tit {
    position: absolute;
    left: 3.36rem;
    top: 50%;
    transform: translateY(-50%);
  font-family: Microsoft YaHei, Microsoft YaHei;
  font-size: 0.72rem;
  color: #4492C0;
}

.aboutUs .aboutUsNav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 14rem;
  height: 1rem;
  /* padding: 0 2.6rem; */
  margin: 0 auto;
  box-sizing: border-box;
  border-bottom: 0.01rem solid #DDDDDD;
}

.aboutUs .aboutUsNav .navBtn {
  display: flex;
}

.aboutUsNav .navBtn a {
  display: block;
  /* width: 1.14rem; */
  height: 0.4rem;
  background: #E2E8EA;
  border-radius: 0.2rem;
  margin-right: 0.2rem;
  padding: 0 0.25rem;
  font-family: Microsoft YaHei, Microsoft YaHei;
  font-size: 0.18rem;
  color: #333333;
  line-height: 0.4rem;
  text-align: center;
  transition: all 0.3s ease-in-out;
}

.aboutUsNav .navBtn a:hover{
     background: #4492C0;
  color: #FFFFFF;
  font-weight: bold;
}

.aboutUsNav .navBtn a.active {
  background: #4492C0;
  color: #FFFFFF;
  font-weight: bold;
}

.aboutUs .aboutUsNav .cancer {
  display: flex;
  align-items: center;
  height: 100%;
}

.cancer .cancerImg {
  display: flex;
  width: 0.11rem;
  height: 0.14rem;
  margin-right: 0.11rem;
}

.cancer a {
  font-family: Microsoft YaHei, Microsoft YaHei;
  font-size: 0.18rem;
  color: #5A686E;
}

.cancer a:last-child{
    color: #4492C0;
}

.cancer a.a-active {
  color: #4492C0;
  /*font-weight: bold;*/
}

.cancer a::after {
  content: '>';
  color: #5A686E;
  font-size: 0.14rem;
  padding: 0 0.11rem;
}

.cancer a:last-child::after {
  content: none;
}

@media screen and (max-width: 1024px){
    .aboutUs{
        margin-top: 51px;
    }
    
    .aboutUs .aboutUsNav .navBtn{
        overflow: auto;
    }
    
    .aboutUs .about-banner{
        /*background-size: 100% auto;*/
        height: auto;
        padding: 0;
        align-items: flex-start;
    }
    
    .aboutUs .about-banner .banner-tit{
        font-size: 20px;
        left: 1.36rem;
    }
    
    .aboutUs .aboutUsNav{
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    
    .aboutUs .aboutUsNav .cancer{
        display: none;
    }
    
    .aboutUsNav .navBtn a{
        font-size: 14px;
        border-radius: 20px;
        height: 30px;
        line-height: 30px;
        min-width: 70px;
    }
    
    .aboutUs .aboutUsNav .navBtn::-webkit-scrollbar{
        display:none
    }
    
    .int-tit .tit-top{
        margin-top: 0 !important;
    }
}