html,
body {
  margin: 0;
  font-family: PingFangSC-light, arial, PingHei, 'Hiragino Sans GB', 'Microsoft YaHei';
  -webkit-box-sizing: border-box !important;
     -moz-box-sizing: border-box !important;
          box-sizing: border-box !important;
}
* {
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
}
#app {
  padding-top: 80px;
}
/* 导航栏样式 */
#nav .large {
  line-height: 1.625;
}
/* banner样式 */
.wx-banner {
  position: relative;
  height: 660px;
  background-image: url("../images/banner_6c4c34a62c.png");
  background-position: center center;
  background-size: cover;
}
.wx-banner .wx-message h1 {
  width: 1200px;
  margin: 0 auto 15px;
  padding-top: 236px;
  line-height: 48px;
  font-size: 48px;
  font-weight: bold;
  color: #fff;
  letter-spacing: 0;
  text-align: left;
  font-family: PingFangSC-Light, 'Microsoft YaHei';
  font-weight: 200;
}
.wx-banner .wx-message h2 {
  width: 1200px;
  margin: 0 auto 15px;
  font-weight: 200;
  font-family: PingFangSC-Light, 'Microsoft YaHei';
  font-size: 34px;
  color: #fff;
  letter-spacing: 0;
  text-align: left;
}
.wx-banner .wx-message p {
  font-family: PingFangSC-Light, 'Microsoft YaHei';
  font-size: 18px;
  color: #fff;
  letter-spacing: 0;
  text-align: left;
  width: 1200px;
  margin: 10px auto 106px;
  font-weight: 200;
}
.wx-banner .wx-message .btns {
  overflow: hidden;
  width: 1200px;
  margin: 0 auto;
}
.wx-banner .wx-message .btns button {
  float: left;
  width: 178px;
  height: 40px;
  line-height: 38px;
  border: 1px solid #fff;
  background-color: #fff;
  border-radius: 5px;
}
.wx-banner .wx-message .btns button a {
  display: block;
  text-align: center;
  text-decoration: none;
  font-size: 14px;
  color: #333;
}
.wx-banner .wx-message .btns .detail {
  margin-left: 20px;
  background-color: transparent;
}
.wx-banner .wx-message .btns .detail a {
  color: #fff;
}
/* 通用标题样式 */
.wx-big-title {
  position: relative;
  margin: 0 0 10px 0;
  text-align: center;
  line-height: 36px;
  font-size: 36px;
  color: #333;
  font-family: PingFangSC-Regular;
  font-weight: 300;
}
.wx-sub-title {
  text-align: center;
  line-height: 14px;
  font-size: 14px;
  color: #999;
  font-weight: 200;
  font-family: PingFangSC-thin;
}
/* 系统介绍样式 */
.wx-system {
  overflow: hidden;
  padding: 85px 0 60px;
  background-color: #fff;
}
.wx-system .wx-sub-title {
  margin-bottom: 40px;
}
.wx-system .box {
  margin: 0 auto;
  width: 960px;
  overflow: hidden;
}
.wx-system .box .item {
  margin-top: 40px;
  float: left;
  width: 33.3333333333%;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
  text-align: center;
}
.wx-system .box .item.twe {
  padding: 0 50px;
}
.wx-system .box .item.one {
  padding-right: 100px;
}
.wx-system .box .item.thr {
  padding-left: 100px;
}
.wx-system .box .item h4 {
  margin: 20px 0 15px;
  line-height: 18px;
  font-size: 18px;
  color: #333;
  font-weight: 300;
}
.wx-system .box .item p {
  height: 60px;
  line-height: 20px;
  font-size: 14px;
  color: #999;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  text-align: left;
}
/* 教学场景 */
.wx-suitable {
  padding: 85px 0 0;
  background-color: #fff;
}
.wx-suitable .box {
  margin-top: 70px;
  overflow: hidden;
}
.wx-suitable .box > div {
  float: left;
  width: 16.66666666%;
  height: 500px;
  text-align: center;
}
.wx-suitable .box div h4 {
  position: relative;
  margin-bottom: 40px;
  font-size: 24px;
  font-family: PingFangSC-Medium;
  text-align: center;
  color: #fff;
}
.wx-suitable .box div img {
  display: inline-block;
  margin: 140px 0 30px;
}
.wx-suitable .box div h4::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -20px;
  margin: 0 0 0 -15px;
  content: '';
  width: 30px;
  height: 1px;
  background-color: #fff;
}
.wx-suitable .box div p {
  font-size: 16px;
  text-align: center;
  color: #fff;
}
.wx-suitable .box .item-one {
  background: url("../images/suitable_class_bg_d663a11526.png") center no-repeat;
  background-size: 100% 100%;
}
.wx-suitable .box .item-twe {
  background: url("../images/suitable_test_bg_3064b0731a.png") center no-repeat;
  background-size: 100% 100%;
}
.wx-suitable .box .item-tre {
  background: url("../images/suitable_mannage_bg_faebf66d10.png") center no-repeat;
  background-size: 100% 100%;
}
.wx-suitable .box .item-four {
  background: url("../images/suitable_question_bg_5eb743d99c.png") center no-repeat;
  background-size: 100% 100%;
}
.wx-suitable .box .item-five {
  background: url("../images/suitable_sales_bg_49089a8f21.png") center no-repeat;
  background-size: 100% 100%;
}
.wx-suitable .box .item-six {
  background: url("../images/suitable_safe_bg_91dcae7351.png") center no-repeat;
  background-size: 100% 100%;
}
/* 综合服务 */
.wx-server {
  height: 650px;
  padding: 110px 0 0;
  background: url("../images/server_bg_1e55329a50.png") center no-repeat;
  background-size: 100% 100%;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
.wx-server .wx-big-title,
.wx-server .wx-sub-title {
  color: #fff;
}
.wx-server .wx-big-title::after {
  background-color: #fff;
}
.wx-server .cn-title {
  margin: 15px auto 0;
  width: 400px;
  font-size: 14px;
  font-family: PingFangSC-Medium;
  text-align: center;
  color: #fff;
}
.wx-server .box {
  position: relative;
  margin: 120px auto 0;
  width: 1120px;
  height: 110px;
}
.wx-server .box .item {
  display: inline-block;
  text-align: center;
}
.wx-server .box .item-one {
  position: absolute;
  top: 0;
  left: 0;
}
.wx-server .box .item-twe {
  position: absolute;
  top: 0;
  left: 202px;
}
.wx-server .box .item-thr {
  position: absolute;
  top: 0;
  left: 404px;
}
.wx-server .box .item-four {
  position: absolute;
  top: 0;
  left: 596px;
}
.wx-server .box .item-five {
  position: absolute;
  top: 0;
  left: 788px;
}
.wx-server .box .item-six {
  position: absolute;
  top: 0;
  left: 980px;
}
.wx-server .box .item div {
  display: inline-block;
  width: 110px;
  height: 110px;
  line-height: 110px;
  border-radius: 50%;
  border: 1px solid #fff;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
.wx-server .box .item div img {
  margin-bottom: -20px;
  display: inline-block;
}
.wx-server .box .item h5 {
  margin-top: 30px;
  font-weight: 200;
  font-family: PingFangSC-Light;
  font-size: 14px;
  color: #fff;
}
/* 为什么选择我们 */
.wx-addvantage {
  height: 580px;
  padding: 110px 0 0;
  background: url("../images/addvantage_bg_7f27274046.png") right bottom no-repeat #fff;
  background-size: contain;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
.wx-addvantage .box {
  position: relative;
  margin: 80px auto 0;
  width: 1120px;
  height: 102px;
}
.wx-addvantage .box div {
  text-align: center;
}
.wx-addvantage .box .item-one {
  position: absolute;
  top: 0;
  left: 0;
}
.wx-addvantage .box .item-twe {
  position: absolute;
  top: 0;
  left: 330px;
}
.wx-addvantage .box .item-thr {
  position: absolute;
  top: 0;
  left: 655px;
}
.wx-addvantage .box .item-four {
  position: absolute;
  top: 0;
  right: 0px;
}
.wx-addvantage .box div h5 {
  text-align: center;
  font-family: PingFangSC-Medium;
  font-size: 44px;
  color: #333;
}
.wx-addvantage .box div p {
  text-align: center;
  font-size: 28px;
  color: #333;
}