.product-desc-wrap {
  padding: 60px 0;
  background-color: #efefef;
}
.product-desc {
  width: 1010px;
  font-size: 24px;
  text-align: justify;
  margin: 0 auto;
  text-indent: 2em;
  line-height: 40px;
}
.product-desc p {
  font-weight: bold;
}
.product-img {
  margin: 0 auto;
  display: block;
  width: 676px;
}

.content-wrap {
  padding: 76px 0 50px;
  position: relative;
}
.content-wrap .triangle {
  color: #efefef;
}
.content-tips {
  font-size: 24px;
  text-align: center;
  margin: 56px 0 32px;
}
.content-tips span {
  font-weight: bold;
}
.content-list {
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 10;
}

.resource-content-wrap {
  padding: 88px 0 70px;
  text-align: center;
  background-color: #efefef;
}
.custom-title {
  height: 100px;
  margin-bottom: 40px;
}
.custom-title span {
  font-size: 24px;
  display: block;
  line-height: 40px;
}

.case-wrap {
  padding: 90px 0 60px;
  position: relative;
}
.case-wrap .triangle {
  color: #efefef;
}
.screen-wrap {
  width: 1000px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin: 40px auto 0;
  height: 490px;
  align-content: space-between;
}