.desy-about4 {
  padding: 120px 0;
  background: #F8F8F8;
}

.desy-about4 ul li {
  display: -webkit-flex;
  display: flex;
}

.desy-about4 ul li+li {
  margin-top: 70px;
}

.desy-about4 ul li .pic {
  width: 41%;
  display: block;
  overflow: hidden;
}

.desy-about4 ul li .pic img {
  display: block;
  width: 100%;
  transition: all 0.3s ease 0s;
  -webkit-transition: all 0.3s ease 0s;
}

.desy-about4 ul li .txt {
  -webkit-flex: 1;
  flex: 1;
  margin: 0 0 0 66px;
  overflow: hidden;
  box-sizing: border-box;
  border-bottom: 1px solid #D6D6D6;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-flex-direction: column;
  flex-direction: column;
}

.desy-about4 ul li .txt h5 {
  font-size: 48px;
  color: #333;
  font-weight: bold;
}

.desy-about4 ul li .txt p {
  font-size: 18px;
  color: #666;
  line-height: 2;
  margin: 25px 0 0;
}

.desy-about4 ul li:nth-child(2n+1) {
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
}

.desy-about4 ul li:nth-child(2n+1) .txt {
  margin: 0 66px 0 0;
}

.desy-about4 ul li .pic:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
}

@media screen and (max-width:1400px) {
  .desy-about4 {
    padding: 90px 0;
  }

  .desy-about4 ul li .txt p {
    font-size: 17px;
    line-height: 1.6;
    margin: 20px 0 0;
  }
}

@media screen and (max-width:768px) {
  .desy-about4 {
    padding: 30px 0;
  }

  .desy-about4 ul li {
    -webkit-flex-direction: column;
    flex-direction: column;
  }

  .desy-about4 ul li+li {
    margin-top: 20px;
  }

  .desy-about4 ul li .pic {
    width: 100%;
    text-align: center;
  }

  .desy-about4 ul li .txt {
    margin: 20px 0 0;
    border-bottom: none;
  }

  .desy-about4 ul li .txt h5 {
    font-size: 22px;
    text-align: center;
  }

  .desy-about4 ul li .txt p {
    font-size: 16px;
    line-height: 1.4;
    margin: 15px 0 0;
  }

  .desy-about4 ul li:nth-child(2n+1) {
    -webkit-flex-direction: column;
    flex-direction: column;
  }

  .desy-about4 ul li:nth-child(2n+1) .txt {
    margin: 20px 0 0;
  }
}