.all {
  padding: 4.5% 0;
  
}
body{
    overflow-x: hidden;
}
.merge .box {
  position: relative;
}
.merge .img {
  position: relative;
  height: 0;
  padding-bottom: 44.44%;
  overflow: hidden;
  display: block;
  -webkit-transition: 0.5s;
  transition: 0.5s;
}
.merge .img img {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  -o-object-fit: cover;
     object-fit: cover;
}
.merge .img:hover img {
  -webkit-transform: scale(1.05);
      -ms-transform: scale(1.05);
          transform: scale(1.05);
}
.merge .txt {
  position: relative;
  width: 81.94%;
  margin: -160px auto 0;
  padding: 80px 80px 0;
  background: #fff;
}
.merge .merge_tit {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  margin-top: 50px;
}
.merge .merge_des {
  margin-top: 16px;
  color: #222222;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.merge .more {
  margin-top: 56px;
}

.base {
  padding-top: 4.5%;
}
.base .flx {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.base .flx > div {
  width: 50%;
}
.base .img {
  position: relative;
  height: 0;
  padding-bottom: 62.5%;
  overflow: hidden;
  display: block;
  -webkit-transition: 0.5s;
  transition: 0.5s;
}
.base .img img {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  -o-object-fit: cover;
     object-fit: cover;
}
.base .img:hover img {
  -webkit-transform: scale(1.05);
      -ms-transform: scale(1.05);
          transform: scale(1.05);
}
.base .r {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding-left: 100px;
  padding-right: calc((100% - 1440px) / 2);
}
.base .base_tit {
  line-height: 1.6;
  margin-top: 48px;
}
.base .more {
  margin-top: 70px;
}

.c2m {
  padding-top: 0;
}
.c2m .flx {
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
      -ms-flex-direction: row-reverse;
          flex-direction: row-reverse;
}
.c2m .r {
  padding-right: 100px;
  padding-left: calc((100% - 1440px) / 2);
}

.robot {
  padding-top: 4.5%;
}
.robot .top {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.robot .box {
  margin-top: 60px;
  position: relative;
}
.robot .img {
  position: relative;
  height: 0;
  padding-bottom: 38.88%;
  overflow: hidden;
  display: block;
  -webkit-transition: 0.5s;
  transition: 0.5s;
}
.robot .img img {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  -o-object-fit: cover;
     object-fit: cover;
}
.robot .txt {
  width: 36%;
  background: #fff;
  padding: 60px;
  position: absolute;
  left: 80px;
  top: 50%;
  height: calc(100% - 160px);
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.robot .des {
  margin-top: 20px;
  line-height: 1.875;
  color: #222222;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

@media screen and (max-width: 1600px) {
  .all {
    padding: 5.2% 0 6.25%;
  }
  .merge .txt {
    margin: -120px auto 0;
    padding: 60px 60px 0;
  }
  .merge .merge_tit {
    margin-top: 30px;
  }
  .merge .merge_des {
    margin-top: 10px;
  }
  .merge .more {
    margin-top: 40px;
  }
  .base .r {
    padding-left: 5.2%;
    padding-right: 10%;
  }
  .base .base_tit {
    margin-top: 25px;
  }
  .base .more {
    margin-top: 40px;
  }
  .c2m {
    padding-top: 0;
  }
  .c2m .r {
    padding-right: 5.2%;
    padding-left: 10%;
  }
  .robot .box {
    margin-top: 35px;
  }
  .robot .txt {
    left: 60px;
    height: calc(100% - 120px);
    padding: 40px;
  }
  .robot .des {
    margin-top: 15px;
  }
}
@media screen and (max-width: 1200px) {
  .merge .txt {
    margin: -60px auto 0;
    padding: 30px 30px 0;
  }
  .merge .merge_tit {
    margin-top: 15px;
  }
  .base .r {
    padding-right: 5%;
  }
  .base .base_tit {
    margin-top: 15px;
  }
  .base .more {
    margin-top: 25px;
  }
  .c2m .r {
    padding-right: 5.2%;
    padding-left: 5%;
  }
  .robot .box {
    margin-top: 25px;
  }
  .robot .txt {
    left: 30px;
    height: calc(100% - 60px);
    padding: 30px;
  }
  .robot .des {
    margin-top: 10px;
  }
}
@media screen and (max-width: 768px) {
  .all {
    padding: 40px 0;
  }
  .merge .txt {
    margin: 0;
    padding: 25px 0 0;
    width: 100%;
  }
  .merge .more {
    margin-top: 25px;
  }
  .merge .merge_des {
    margin-top: 5px;
  }
  .base .base_tit {
    text-align: left;
  }
  .base {
    padding-top: 40px;
  }
  .base .flx {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .base .flx > div {
    width: 100%;
  }
  .base .r {
    padding: 25px 5% 0;
  }
  .c2m {
    padding-top: 40px;
  }
  .robot {
    padding-top: 40px;
  }
  .robot .common_title .common_title_color {
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: flex-start;
  }
  .robot .txt {
    position: relative;
    left: 0;
    width: 100%;
    -webkit-transform: inherit;
        -ms-transform: inherit;
            transform: inherit;
    top: 0;
    padding: 0;
    margin-top: 25px;
  }
  .base .more {
    margin-top: 25px;
  }
  .robot .txt_more {
    margin-top: 25px;
  }
  .robot .des {
    margin-top: 5px;
  }
}