.main-exhibition {
  position: relative;
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.main-exhibition .txt-box { /* flex:1; */
  width: 50%; /* padding:20px; */
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  text-align: center;
}
.main-exhibition .txt-box .category {
  color: #333;
  font-size: 24px;
  letter-spacing: 5px;
}
.main-exhibition .txt-box .title {
  padding-top: 50px;
  color: #333;
  font-size: 40px;
}
.main-exhibition .txt-box .date {
  padding-top: 20px;
  color: #636363;
  font-size: 22px;
}
.main-exhibition .txt-box .btn-box {
  padding-top: 60px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.main-exhibition .txt-box .btn-box a {
  display: block;
  min-width: 130px;
  padding: 16px 0;
  border-radius: 30px;
  line-height: 16px;
  background: #0080bc;
  color: #fff;
  font-size: 18px;
}
.main-exhibition .photo-box {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  aspect-ratio: 480/289;
}
.main-exhibition .photo-box img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}

@media screen and (max-width: 1024px) {
  .main-exhibition {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-flow: column;
            flex-flow: column;
    padding-bottom: 150px;
  }
  .main-exhibition .txt-box { /* flex:1; */
    width: 100%;
    padding: 50px 20px 20px;
  }
  .main-exhibition .txt-box .category {
    font-size: 20px;
  }
  .main-exhibition .txt-box .title {
    padding-top: 40px;
    font-size: 35px;
  }
  .main-exhibition .txt-box .date {
    padding-top: 20px;
    font-size: 18px;
  }
  .main-exhibition .txt-box .btn-box {
    position: absolute;
    bottom: 70px;
    left: 0;
    width: 100%;
    padding-top: 0px;
  }
  .main-exhibition .txt-box .btn-box a {
    display: block;
  }
  .main-exhibition .photo-box {
    -webkit-box-flex: 0;
        -ms-flex: none;
            flex: none;
    width: 100%;
    max-width: 480px;
    aspect-ratio: 480/289;
    padding: 0 20px;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
  }
  .main-exhibition .photo-box img {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
  }
}