/* .main */
.main_txt {
  height: 215px;
  padding: 50px 0 40px;
  text-align: center;
  color: #ffffff;
  font-weight: bold;
  opacity: 1;
}

.main_txt .page_dir {
  margin-bottom: 0;
  font-size: 14px;
  line-height: 1.0;
  text-align: center;
}

.main_txt .txt_head {
  font-size: 5.7rem;
  line-height: 1.2;
  letter-spacing: 5.7px;
  color: #FFFFFF;
  padding-top: 5px;
}

.main_txt .txt_sub {
  display: block;
  font-size: 16px;
  line-height: 30px;
  letter-spacing: initial;
  color: #FFFFFF;
}

#ttl_data_center {
  background: url(/images/keyword/data_center.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_decarbonization {
  background: url(/images/keyword/decarbonization.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_digital_twin {
  background: url(/images/keyword/digital_twin.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_dr_bcp {
  background: url(/images/keyword/dr_bcp.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_dx {
  background: url(/images/keyword/dx.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_facility_management {
  background: url(/images/keyword/facility_management.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_office {
  background: url(/images/keyword/office.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_sdgs {
  background: url(/images/keyword/sdgs.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_smart_city {
  background: url(/images/keyword/smart_city.jpg) no-repeat center center;
  background-size: cover;
}

#ttl_zeb {
  background: url(/images/keyword/zeb.jpg) no-repeat center center;
  background-size: cover;
}

.main_lead {
  margin: 30px 15% 50px;
  line-height: 1.8;
  font-size: 1.6rem;
}

h2 {
  text-align: center;
  margin-bottom: 30px;
  font-size: 3.0rem;
  font-weight: bold;
  line-height: 1.5;
}

.container--def > .products-services {
  margin-top: 0;
}

@media (max-width: 767px) {
  .main_txt {
    height: 143px;
    padding: 0 10px;
  }
  .main_txt .page_dir {
    padding: 27px 0 6px 0;
    font-weight: normal;
  }
  .main_txt .txt_head {
    font-size: 3.0rem;
    font-weight: bold;
    letter-spacing: 0px;
  }
  .main_txt .txt_sub {
    font-size: 1.4rem;
    font-weight: normal;
  }
  .main_lead {
    font-size: 1.4rem;
    margin: 20px 0 50px;
  }
  h2 {
    font-size: 2.0rem;
  }
}

/* .column4-box */
.column4-box {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  margin-bottom: 70px;
  padding-bottom: 50px;
  width: 100%;
  border-bottom: 2px solid #F1F1F1;
}

.column4-box li {
  width: calc(100% / 4);
  padding: 0 10px;
  margin-bottom: 20px;
}

.column4-box li a {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  color: #3B4043;
  text-decoration: none;
}

.column4-box li a p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.5;
}

.column4-box li a .cate {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  background-color: #113E73;
  margin: 0;
  padding: 0 15px;
  color: #FFFFFF;
  font-size: 1.2rem;
  line-height: 1.8;
}

@media (max-width: 1024px) {
  .column4-box {
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
  }
  .column4-box li {
    margin-bottom: 20px;
    width: calc(100% / 2);
  }
  .column4-box li a .cate {
    font-size: 1.0rem;
    padding: 0 5px;
  }
}

@media (max-width: 767px) {
  .column4-box {
    margin-bottom: 13.33333vw;
    padding-bottom: 13.33333vw;
  }
}