.smart_wrap{
  display: flex;
  align-items: center;
  justify-content: center;
  justify-content: space-evenly;
  background-image: url(../img/smart_bg.jpg);
  background-size: cover;
  padding: 80px;
  height: 100vh;
}
.smart{
  
}
.smart .tit{
  font-size: 60px;
  font-weight: 500;
  margin-bottom: 20px;
  color: #000;
}
.smart .txt{
  font-size: 25px;
  font-weight: 400;
  margin-bottom: 30px;
  color: #000;
}
.smart_btn{
  display: flex;
  color: #000;
}
.smart_btn a{
  margin-right: 20px;
  font-size: 32px;
  border: 1px solid #000;
  display: flex;
  align-items: center;
  width: 200px;
  height: 80px;
  text-align: center;
  justify-content: center;
}

.img_wrap img{
  width: 80%;
}

@media screen and (max-width: 768px) {
  .img_wrap img{
      width: 100%;
  }
  .smart_wrap{
      flex-direction: column-reverse;
      padding: 30px;
  }
  .smart{
      margin-top: 30px;
      width: 100%;
      text-align: center;
  }
  .smart .tit{
      font-size: 30px;
  }
  .smart .txt{
      font-size: 16px;
  }
  .smart_btn a{
      font-size: 16px;
      width: 40%;
      padding: 10px 20px;
  }
}