.aboutcen {
  width: 100%;
}

.course {
  width: calc(100% - 40px);
  margin: 0px auto;
}

.roadmap {
  width: calc(100% - 36px);
  margin-left: 18px;
}

.course p {
  font-size: 12px;
}

.banner {
  margin-bottom: 40px;
  height: 224px;
  background-image: url("https://oss.expoincloud.com/yc_file/expo3dstore/images/about_bg2_mb.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  margin-top: 50px;
}

.banner h2 {
  font-size: 26px;
}

.course p {
  margin-bottom: 12px;
}

.roaditem .roadtxt p {
  font-size: 12px;
}

.roadright .roadtxt {
  padding-left: 20px;
}

.roadmap {
  margin-top: 52px;
  margin-bottom: 70px;
}

.roaditem .roaditem_time {
  font-size: 18px;
}

.roadright .roaditem_time span {
  margin-right: 7px;
}

.roadright .roadtxt {
  padding-left: 16px;
}

.roadleft .roaditem_time h4 {
  margin-right: 8px;
}

.roadleft .roadtxt {
  padding-right: 16px;
}

.advantage {
  width: 100%;
  overflow-x: scroll;
  margin-bottom: 50px;
}

.advantage ul {
  width: max-content;
}

.advantage ul li {
  width: 332px;
  height: 244px;
  margin-left: 20px;
}

.advantage ul li h4 {
  font-size: 16px;
}

.advantage ul li p {
  font-size: 12px;
  line-height: 22px;
}

.advantage ul li:nth-child(3) {
  margin-right: 20px;
}

.expertiselevel {
  width: 100%;
  height: 448px;
  background: url("https://expo.3g2.cn/expo3dstore/images/expertiselevel_mb.jpg") no-repeat;
  background-size: 100% 100%;

}

.expertiseleveltitle {
  font-size: 20px;
  padding-top: 25px;
}

.expertiselevelcen {
  width: 100%;
  background: none;
}

.expertiselevelbox {
  display: block;
  background: none;
  padding-left: 0;
  padding-right: 0;
  width: 100%;
  height: 100%;
  margin-top: 0px;
  padding-top: 12px;
}

.expertiselevelbox div {
  width: calc(100% - 100px);
  height: 50px;
  background: #fff;
  /* margin: 0 auto; */
  border-radius: 6px;
  /* margin-bottom: 20px; */
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  margin-left: 50px;
  margin-top: 0;
  margin-bottom: 12px;
}


.expertiselevelbox div img {
  width: 40.83px;
  height: 40.02px;
}

.szrj img {
  width: 40.04px;
  height: 36.19px;
}