.head_bg {
  width: 100%;
  background-color: #3838AA;
  text-align: center;
}
.head_bg .head .nav_qa:after {
  content: '';
  display: block;
  /*width: 46px;*/
  height: 2px;
  background: #FFFFFF;
  opacity: 0.5;
  text-align: center;
  margin-top: -10px;
}
.readour {
  background-color: #3838AA;
  padding-bottom: 160px;
}
.readour h2 {
  font-size: 46px;
  font-weight: bold;
  color: #FFFFFF;
  margin-top: 100px;
}
.readour .readour_main {
  width: 1200px;
  margin: 0 auto;
}
.readour .box1 {
  padding: 43px 54px;
  background-color: #FFFFFF;
  margin-top: 50px;
}
.readour .box1 .box1_head {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.readour .box1 .box1_head h3 {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  text-align: left;
}
.readour .box1 .box1_head .box1_icon {
  display: inline-block;
  width: 24px;
  height: 16px;
  background: url(../images/qa_icon.png) no-repeat;
  background-size: 100% 100%;
}
.readour .box1 .box1_head .box1_icon2 {
  display: inline-block;
  width: 24px;
  height: 16px;
  background: url(../images/qa_icon2.png) no-repeat;
  background-size: 100% 100%;
}
.readour .box1 p {
  font-size: 16px;
  font-weight: normal;
  color: #999999;
  text-align: left;
  margin-top: 20px;
}
.readour .box2 {
  padding: 43px 54px 74px 54px;
  background-color: #FFFFFF;
  margin-top: 20px;
}
.readour .box2 h3 {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  text-align: left;
}
.readour .box2 .box2_head {
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 32px;
}
.readour .box2 .box2_head h4 {
  font-size: 24px;
  font-weight: 500;
  color: #333333;
  text-align: left;
  width: 1100px;
}
.readour .box2 .box2_head .box2_icon {
  display: inline-block;
  width: 24px;
  height: 16px;
  background: url(../images/qa_icon2.png) no-repeat;
  background-size: 100% 100%;
}
.readour .box2 .box2_head .box2_icon2 {
  display: inline-block;
  width: 24px;
  height: 16px;
  background: url(../images/qa_icon.png) no-repeat;
  background-size: 100% 100%;
}
.readour .box2 .box2_cont {
  font-size: 16px;
  font-weight: normal;
  color: #999999;
  line-height: 26px;
  text-align: left;
  margin-top: 20px;
  display: none;
}
.readour .box2 .box2_cont .box2_cont_img {
  width: 754px;
  height: 117px;
  margin-top: 10px;
  background: url(../images/qa_img.png) no-repeat;
  background-size: 100% 100%;
}