.wrapper {
  margin: 0 auto;
  width: 1200px;
}

.backgroundImg {
  width: 100%;
  height: 350px;
  /* background-image: url(../picture/Background/5.png); */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.backgroundContain {
  height: 100%;
  background: #666;
}

.mainContentArea .levelOneTitle {
  /* margin-bottom: 50px; */
  margin-bottom: 50px;
}

.mainContentArea .levelOneTitle h2 {
  text-align: center;
  font-size: 40px;
  line-height: 2;
}

.mainContentArea .caseContent {
  display: flex;
  justify-content: space-between;
}

.mainContentArea .caseContent .caseImg,
.mainContentArea .caseContent .caseText {
  width: 49%;
}

.mainContentArea .caseContent .caseImg img {
  width: 500px;
  height: auto;
}

.mainContentArea .caseContent .caseText {
  display: flex;
  align-items: center;
  font-size: 20px;
  line-height: 1.5;
  text-indent: 2em;
  text-align: justify;
}

.mainContentArea .case1,
.mainContentArea .case2 {
  padding: 50px 0;
}

.mainContentArea .case2 {
  background-color: #f3f3f3;
}