body {
  background: #F2F2F2;
}
.production_banner {
  width: 100%;
  min-width: 1200px;
  height: 480px;
  background: url(/lib/images/production/banner.png?v=mjn89mlko7) no-repeat center;
  overflow: hidden;
}
.production_banner .banner_title {
  color: #FFFFFF;
  font-size: 50px;
  font-weight: 600;
  font-family: PingFangSC-Medium;
  text-align: center;
  margin-top: 212px;
}
.production_banner .banner_btn {
  width: 300px;
  height: 58px;
  line-height: 58px;
  background: linear-gradient(180deg, #116bcf 0%, #0d4e96 100%);
  border-radius: 5px;
  text-align: center;
  font-size: 18px;
  font-weight: 500;
  color: #ffffff;
  margin-top: 60px;
  cursor: pointer;
  -moz-user-select: none;
  /*火狐*/
  -webkit-user-select: none;
  /*webkit浏览器*/
  -ms-user-select: none;
  /*IE10*/
  user-select: none;
}
.production_banner .banner_btn a {
  display: inline-block;
  width: 100%;
  height: 100%;
  font-family: PingFangSC-Medium;
  font-weight: 500;
}
.production_center .center_ul {
  width: 100%;
  min-width: 1200px;
  height: 128px;
  background: #FFF;
  position: relative;
}
.production_center .center_ul ul {
  width: 990px;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}
.production_center .center_ul ul li {
  float: left;
  width: 495px;
  font-size: 32px;
  font-family: PingFangSC-Medium;
  font-weight: 600;
  color: #75859a;
  line-height: 45px;
  color: #888888;
  border-bottom: 2px solid #888888;
  text-align: center;
  list-style: none;
  cursor: pointer;
  padding-bottom: 8px;
}
.production_center .center_ul ul .liColor {
  color: #0D4E96;
  border-color: #0D4E96;
}
.production_center .center_show {
  position: relative;
}
.production_center .center_show .dw0 {
  position: absolute;
  z-index: -1;
  right: 6%;
  top: -3px;
}
.production_center .center_show .dw1 {
  position: absolute;
  z-index: 2;
  right: 10%;
  top: 22%;
}
.production_center .center_show .dw2 {
  position: absolute;
  z-index: 2;
}
.production_center .center_show .dw3 {
  position: absolute;
  z-index: 2;
  bottom: 0;
}
.production_center .center_show .show_teacher,
.production_center .center_show .show_student {
  width: 100%;
  min-width: 1200px;
}
.production_center .center_show .show_teacher li,
.production_center .center_show .show_student li {
  list-style: none;
  float: left;
  height: 506px;
  width: 100%;
}
.production_center .center_show .show_teacher li .teacher_content,
.production_center .center_show .show_student li .teacher_content {
  width: 1200px;
  overflow: hidden;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_img,
.production_center .center_show .show_student li .teacher_content .teacher_img {
  max-width: 614px;
  margin-top: 90px;
  position: relative;
  z-index: 4;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_img0,
.production_center .center_show .show_student li .teacher_content .teacher_img0 {
  margin-top: 48px;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_txt,
.production_center .center_show .show_student li .teacher_content .teacher_txt {
  margin-top: 90px;
  max-width: 554px;
  margin-top: 92px;
  margin-left: 32px;
  position: relative;
  z-index: 4;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_txt .txt_title,
.production_center .center_show .show_student li .teacher_content .teacher_txt .txt_title {
  height: 33px;
  font-size: 24px;
  font-family: PingFangSC-Medium;
  font-weight: 600;
  color: #173257;
  position: relative;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_txt .txt_title::before,
.production_center .center_show .show_student li .teacher_content .teacher_txt .txt_title::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 4px;
  background: #173257;
  position: absolute;
  top: 40px;
}
.production_center .center_show .show_teacher li .teacher_content .teacher_txt .txt_subtitle,
.production_center .center_show .show_student li .teacher_content .teacher_txt .txt_subtitle {
  margin-top: 36px;
  font-size: 20px;
  font-family: PingFangSC-Medium;
  font-weight: 400;
  color: #173257;
  line-height: 35px;
}
.production_center .center_show .show_teacher li .teacher_content .floatM,
.production_center .center_show .show_student li .teacher_content .floatM {
  margin-left: 0;
}
.production_center .center_show .show_teacher li:nth-child(even),
.production_center .center_show .show_student li:nth-child(even) {
  background: #F9F9F9;
}