body {
  background: #F2F2F2;
}

.key3 {
  width: 100%;
  height: 1px;
  background: #E4E4E4;
}

.key4 {
  width: 100%;
  height: 1px;
  background: #E4E4E4;
}

.about .about-nav {
  width: 1100px;
  margin: 0 auto;
  background: #FFFFFF;
  margin-top: 16px;
  margin-bottom: 50px;
}

.about .about-nav .zuo {
  float: left;
  width: 250px;
  margin-left: 20px;
  padding-top: 27px;
}

.about .about-nav .zuo .net ul h1 {
  width: 250px;
  height: 36px;
  line-height: 36px;
  margin-bottom: 6px;
  border: 1px solid #979797;
  border-radius: 14px;
  box-sizing: border-box;
  background: #67696C;
  color: #fff;
  text-indent: 2em;
  font-family: PingFangSC-Regular;
  font-size: 16px;
}

.about .about-nav .zuo .net ul li {
  width: 250px;
  margin-bottom: 6px;
}

.about .about-nav .zuo .net ul li .li-top {
  width: 250px;
  margin-bottom: 6px;
  border: 1px solid #979797;
  border-radius: 14px;
  box-sizing: border-box;
  background: #FFFFFF;
  position: relative;
}

.about .about-nav .zuo .net ul li .li-top a {
  display: block;
  border-radius: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.about .about-nav .zuo .net ul li .li-top a span {
  display: block;
  height: 34px;
  width: 70%;
  line-height: 34px;
  margin-left: 34px;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #7C7C7C;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;

}

.about .about-nav .zuo .net ul li .li-top a.active {
  background: #F3F3F3;
}

.about .about-nav .zuo .net ul li .li-top .t {
  width: 14px;
  height: 14px;
  position: absolute;
  top: 0;
  right: 13px;
}

.about .about-nav .zuo .net ul li .li-top .t i {
  display: block;
  width: 14px;
  height: 14px;
  margin-top: 10px;
  line-height: 11px;
  text-align: center;
  background: url(../images/jiagd.png) no-repeat 0 center;
}

.about .about-nav .zuo .net ul li .li-top .t.hover i {
  background: url(../images/jianzk.png) no-repeat 0 center;
}

.about .about-nav .zuo .net ul li .li-top:hover {
  background: #F3F3F3;
}

.about .about-nav .zuo .net ul li .txt {
  display: none;
  width: 83%;
  margin-left: 18%;
}

.about .about-nav .zuo .net ul li .txt .txt-nav {
  margin-top: 6px;
  border: 1px solid #979797;
  border-radius: 14px;
  box-sizing: border-box;
  background: #F3F3F3;
}

.about .about-nav .zuo .net ul li .txt .txt-nav a {
  display: block;
  text-indent: 2em;
  line-height: 36px;
  font-family: PingFangSC-Regular;
  font-size: 14px;
  color: #7C7C7C;
}

.about .about-nav .zuo .meb {
  margin-top: 34px;
}

.about .about-nav .zuo .meb h1 {
  width: 250px;
  height: 36px;
  border: 1px solid #979797;
  border-radius: 14px;
  box-sizing: border-box;
  margin-bottom: 6px;
  line-height: 34px;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #fff;
  text-indent: 2em;
  background: #67696C;
}

.about .about-nav .zuo .meb .meb-nav {
  width: 250px;
  background: #FFFFFF;
  border: 1px solid #B7B7B7;
  border-radius: 14px;
  box-sizing: border-box;
  padding-bottom: 16px;
}

.about .about-nav .zuo .meb .meb-nav .nav-one {
  width: 179px;
  margin: 0 auto;
  margin-top: 14px;
}

.about .about-nav .zuo .meb .meb-nav .nav-one p {
  margin-bottom: 22px;
  line-height: 22px;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #464646;
  letter-spacing: 0;
}

.about .about-nav .zuo .meb .meb-nav .nav-one p:nth-child(3) {
  margin-bottom: 0;
}

.about .about-nav .zuo .meb .meb-nav .nav-two {
  margin-top: 14px;
}

.about .about-nav .zuo .meb .meb-nav .nav-two .conimg {
  float: left;
  width: 30px;
  height: 30px;
  line-height: 27px;
  text-align: center;
  margin-left: 30px;
}

.about .about-nav .zuo .meb .meb-nav .nav-two .conimg img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  vertical-align: middle;
}

.about .about-nav .zuo .meb .meb-nav .nav-two span {
  float: left;
  margin-left: 12px;
  margin-top: 4px;
  line-height: 22px;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #464646;
  letter-spacing: 0;
}

.about .about-nav .you {
  float: left;
  width: 72%;
  margin-top: 25px;
  margin-left: 34px;
}

.about .about-nav .you .list span {
  line-height: 17px;
  font-family: PingFangSC-Regular;
  font-size: 12px;
  color: #272727;
  letter-spacing: 0;
}

.about .about-nav .you .list span:last-child {
  color: #2D85AE;
}

.about .about-nav .you .key {
  width: 100%;
  height: 1px;
  background: #E4E4E4;
  margin-top: 12px;
  margin-bottom: 20px;
}

.about .about-nav .you .cont {
  margin-top: 10px;
}

.about .about-nav .you .cont .tupian {
  float: left;
  width: 350px;
  height: 234px;
  background: #FFFFFF;
  border: 1px solid #4D4D4D;
  box-sizing: border-box;
}

.about .about-nav .you .cont .tupian .tu-img {
  width: 260px;
  height: 210px;
  line-height: 207px;
  text-align: center;
  margin: 0 auto;
  margin-top: 12px;
}

.about .about-nav .you .cont .tupian .tu-img img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  vertical-align: middle;
}

.about .about-nav .you .cont .conpxt {
  float: left;
  margin-left: 30px;
}

.about .about-nav .you .cont .conpxt h1 {
  width: 380px;
  height: 50px;
  line-height: 25px;
  font-family: PingFangSC-Regular;
  font-size: 18px;
  color: #000000;
  letter-spacing: 0;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.about .about-nav .you .cont .conpxt .keyl {
  width: 410px;
  height: 1px;
  margin-top: 12px;
  margin-bottom: 12px;
  border-top: 1px dashed #CFCFCF;
}

.about .about-nav .you .cont .conpxt .jg {
  line-height: 25px;
  font-family: PingFangSC-Semibold;
  font-size: 18px;
  color: #1BCBAE;
  letter-spacing: 0;
}

.about .about-nav .you .cont .conpxt .xinsi .xinsi-nav {
  float: left;
}

.about .about-nav .you .cont .conpxt .xinsi .xinsi-nav p {
  width: 164px;
  line-height: 22px;
  margin-bottom: 22px;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #464646;
  letter-spacing: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.about .about-nav .you .cont .conpxt .xinsi .xinsi-nav p:nth-child(3) {
  margin-bottom: 0;
}

.about .about-nav .you .cont .conpxt .xinsi .order {
  float: left;
  width: 216px;
  height: 44px;
  line-height: 44px;
  background: #6D6D6D;
  border-radius: 2px;
  margin-top: 65px;
}

.about .about-nav .you .cont .conpxt .xinsi .order a {
  text-align: center;
  display: block;
  font-family: PingFangSC-Regular;
  font-size: 16px;
  color: #FFFFFF;
  letter-spacing: 0;
}

.about .about-nav .you .xin {
  margin-top: 25px;
  border: 1px solid #d5d5d5;
  box-sizing: border-box;
}

.about .about-nav .you .xin .xin-nav {
  padding-top: 12px;
  padding-bottom: 12px;
}

.about .about-nav .you .xin .xin-nav table {
  margin-left: 16px;
}

.about .about-nav .you .xin .xin-nav table tbody:first-child {
  line-height: 22px;
  font-family: PingFangSC-Medium;
  font-size: 16px;
  color: #333333;
  letter-spacing: 0;
}

.about .about-nav .you .xin .xin-nav table tbody:nth-child(2) tr {
  line-height: 26px;
}

.about .about-nav .you .xqing {
  width: 792px;
  margin-top: 24px;
  border: 1px solid #d5d5d5;
  box-sizing: border-box;
  border-top: 0;
  margin-bottom: 20px;
}

.about .about-nav .you .xqing .key2 {
  width: 792px;
  height: 2px;
  background: #4A4A4A;
}

.about .about-nav .you .xqing h1 {
  line-height: 22px;
  margin-top: 16px;
  margin-left: 16px;
  font-family: PingFangSC-Medium;
  font-size: 16px;
  color: #333333;
  letter-spacing: 0;
}

.about .about-nav .you .xqing .key3 {
  margin-top: 16px;
}

.about .about-nav .you .xqing .sm {
  margin: 0 20px;
  margin-top: 16px;
  font-size: 14px;
  line-height: 26px;
  white-space: pre-line;
  text-align: Justify;
  text-justify: inter-ideograph;
}

.about .about-nav .you .xqing .sm img {
  max-width: 100%;
  height: auto;
}

.about .about-nav .you .xqing .key4 {
  margin-top: 52px;
}

.about .about-nav .you .xqing h2 {
  margin-top: 16px;
  margin-left: 16px;
  line-height: 22px;
  font-family: PingFangSC-Medium;
  font-size: 16px;
  color: #333333;
  letter-spacing: 0;
}

.about .about-nav .you .xqing .orderbox {
  margin-top: 32px;
}

.about .about-nav .you .xqing .orderbox .biaodan {
  float: left;
  margin-bottom: 14px;
  margin-left: 35px;
  height: 30px;
}

.about .about-nav .you .xqing .orderbox .biaodan i {
  float: left;
  width: 12px;
  height: 17px;
  margin-top: 4px;
  font-family: PingFangSC-Medium;
  font-size: 12px;
  color: #FF2D2D;
  letter-spacing: 0;
}

.about .about-nav .you .xqing .orderbox .biaodan span {
  margin-right: 30px;
  height: 30px;
  float: left;
  margin-top: 5px;
  font-family: PingFangSC-Medium;
  font-size: 14px;
  color: #A1A1A1;
  letter-spacing: 0;
}

.about .about-nav .you .xqing .orderbox .biaodan .tongyong {
  float: left;
  height: 30px;
  width: 200px;
  border: 1px solid #C8C8C8;
  box-sizing: border-box;
  border-radius: 4px;
  background: #FFFFFF;
}

.about .about-nav .you .xqing .orderbox .biaodan .tongyong input {
  width: 170px;
  margin-left: 12px;
  font-size: 12px;
  background: none;
  height: 30px;
  border: none;
  outline: none;
  margin-top: -1px;
}

.about .about-nav .you .xqing .orderbox .biaodan .tongyong input::-ms-input-placeholder {
  font-family: PingFangSC-Regular;
  font-size: 12px;
  color: #D7D7D7;
}

.about .about-nav .you .xqing .orderbox .biaodan .tongyong input::-webkit-input-placeholder {
  font-family: PingFangSC-Regular;
  font-size: 12px;
  color: #D7D7D7;
}

.about .about-nav .you .xqing .orderbox .biaodan:nth-child(2)>span {
  margin-right: 16px;
}

.about .about-nav .you .xqing .orderbox .noo {
  margin-left: 47px;
}

.about .about-nav .you .xqing .orderbox .noo span {
  margin-right: 30px;
  height: 30px;
  float: left;
  margin-top: 5px;
  font-family: PingFangSC-Medium;
  font-size: 14px;
  color: #A1A1A1;
  letter-spacing: 0;
}

.about .about-nav .you .xqing .orderbox .noo .noo-text {
  display: inline-block;
  background: #FFFFFF;
  border: 1px solid #C8C8C8;
  border-radius: 4px;
  box-sizing: border-box;
}

.about .about-nav .you .xqing .orderbox .noo .noo-text textarea {
  float: left;
  width: 589px;
  height: 130px;
  padding-top: 10px;
  margin-left: 12px;
  outline: none;
  border: none;
}

.about .about-nav .you .xqing .orderbox .noo .noo-text textarea::-ms-input-placeholder {
  font-family: PingFangSC-Regular;
  font-size: 12px;
  color: #D7D7D7;
}

.about .about-nav .you .xqing .orderbox .noo .noo-text textarea::-webkit-input-placeholder {
  font-family: PingFangSC-Regular;
  font-size: 12px;
  color: #D7D7D7;
}

.about .about-nav .you .xqing button {
  margin-top: 23px;
  margin-left: 110px;
  margin-bottom: 100px;
  width: 120px;
  height: 32px;
  border: none;
  background: #2D85AE;
  border-radius: 26px;
  font-family: PingFangSC-Regular;
  font-size: 14px;
  color: #fff;
  letter-spacing: 0;
}

.about .about-nav .you .xqing #btnSubmit2 {
  margin-top: 23px;
  margin-left: 36px;
  margin-bottom: 100px;
  width: 120px;
  height: 32px;
  border: none;
  background: #878787;
  border-radius: 26px;
  font-family: PingFangSC-Regular;
  font-size: 14px;
  color: #fff;
  letter-spacing: 0;
}