.box1_bg {
  position: relative;
  font-size: 20px;
  padding: 75px 60px;
  box-sizing: border-box;
  background: url(../images/p4_box_bg.png) no-repeat center / 100% 100%;
}

.icon_mf {
  width: 160px;
  height: 140px;
  position: absolute;
  top: -80px;
  left: -45px;
}

.icon_xj_h {
  width: 180px;
  height: 250px;
  position: absolute;
  bottom: -120px;
  left: 40px;
}

.inner_bg {
  padding-bottom: 500px;
}