.about .about-nav {
  width: 1100px;
  margin: 0 auto;
  margin-top: 20px;
}
.about .about-nav .you {
  float: left;
  width: 826px;
  margin-left: 24px;
}
.about .about-nav .you .conxt {
  margin-top: 20px;
  background: #FFFFFF;
}
.about .about-nav .you .conxt ul li {
  float: left;
  width: 360px;
  margin-left: 35px;
  margin-top: 32px;
}
.about .about-nav .you .conxt ul li a {
  display: block;
}
.about .about-nav .you .conxt ul li a .too {
  border: 1px solid #979797;
  box-sizing: border-box;
  width: 360px;
  height: 290px;
}
.about .about-nav .you .conxt ul li a .too .news-img {
  width: 277px;
  height: 270px;
  line-height: 267px;
  text-align: center;
  margin: 0 auto;
  margin-top: 10px;
}
.about .about-nav .you .conxt ul li a .too .news-img img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  vertical-align: middle;
}
.about .about-nav .you .conxt ul li a .ppk {
  margin-top: 10px;
  line-height: 28px;
  height: 28px;
  font-family: PingFangSC-Regular;
  font-size: 20px;
  color: #515151;
  letter-spacing: 0;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.about .about-nav .you .conxt .fenye {
  margin-top: 50px;
  padding-bottom: 20px;
}