.about_title_wrap {
  background: url(../img/about_bg.png) center no-repeat;
  padding: 120px 0;
  background-size: cover;
}
.about_title_wrap .center_wrap .about_main_text_wrap {
  margin-top: 60px;
}
.about_title_wrap .center_wrap .about_main_text_wrap .icon_house {
  width: 50px;
  margin-bottom: 12px;
}
.about_title_wrap .center_wrap .about_main_text_wrap h2 {
  font-size: 18px;
  margin-bottom: 8px;
}
.about_title_wrap .center_wrap .about_main_text_wrap ul {
  margin-bottom: 60px;
}
.about_title_wrap .center_wrap .about_main_text_wrap ul li {
  font-size: 14px;
  font-weight: 400;
}
.about_title_wrap .center_wrap .about_main_text_wrap h3 {
  font-size: 16px;
  position: relative;
}
.about_title_wrap .center_wrap .about_main_text_wrap .line_text::before {
  content: "";
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 24px;
  background-color: #fff;
  display: block;
}

.contents_wrap article {
  padding: 120px 20px;
}
.contents_wrap article .title_wrap {
  text-align: center;
}
.contents_wrap article .title_wrap h1 {
  font-size: 24px;
}
.contents_wrap article .title_wrap > span {
  display: inline-block;
  margin-top: 8px;
  font-size: 14px;
  color: #666;
}
.contents_wrap .credit_wrap h1 {
  margin-bottom: 40px;
}
.contents_wrap .credit_wrap .con_wrap {
  margin-bottom: 80px;
}
.contents_wrap .credit_wrap .con_wrap ul {
  margin-bottom: 20px;
}
.contents_wrap .credit_wrap .con_wrap ul li {
  color: #666;
  font-size: 14px;
}
.contents_wrap .credit_wrap .con_wrap ul li span {
  letter-spacing: 0;
}
.contents_wrap .credit_wrap .con_wrap ul li h2 {
  margin: 8px 0 16px;
  color: #000;
  font-size: 18px;
}
.contents_wrap .credit_wrap .con_wrap img {
  max-width: 100%;
  width: 100%;
}
.contents_wrap .credit_wrap .con_wrap:last-child {
  margin: 0;
}
.contents_wrap .technology_wrap {
  background-color: #f8f8fa;
}
.contents_wrap .technology_wrap .text_wrap {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  margin: 16px auto 24px;
  max-width: 280px;
}
.contents_wrap .technology_wrap .text_wrap li {
  border: 1px solid #0D7DE9;
  color: #0D7DE9;
  border-radius: 20px;
  padding: 3px 0 4px;
  font-size: 14px;
  width: 64px;
  text-align: center;
  margin-bottom: 8px;
}
.contents_wrap .technology_wrap .img_wrap {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  max-width: 320px;
  margin: 0 auto;
}
.contents_wrap .technology_wrap .img_wrap li {
  width: calc(50% - 8px);
  height: 152px;
  border-radius: 20px;
  box-shadow: 0 0 12px 1px rgba(0, 0, 0, 0.06);
  position: relative;
  margin-bottom: 16px;
  background-color: #fff;
}
.contents_wrap .technology_wrap .img_wrap li img {
  width: 130px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.contents_wrap .monitoring_wrap .title_wrap .sky_blue_bg_wrap {
  display: inline-block;
  background-color: #E2FBFF;
  color: #30B2E2;
  font-size: 15px;
  padding: 8px 32px;
  max-width: 280px;
  border-radius: 40px;
  margin: 12px 0 4px;
}
.contents_wrap .monitoring_wrap .title_wrap .monitoring_sub_text {
  display: block;
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap {
  margin-top: 24px;
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap {
  background: linear-gradient(top, #00C7FE, #8BFFF7);
  border-radius: 40px;
  max-width: 180px;
  height: 180px;
  margin: 0 auto;
  position: relative;
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box {
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  position: absolute;
  background-color: #fff;
  border-radius: 30px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box .text_box {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box .text_box span {
  display: block;
  margin-top: 12px;
  width: 100%;
  color: #41475F;
}
.contents_wrap .monitoring_wrap .monitoring_con_wrap .arrow_icon_wrap {
  margin: 20px auto;
  background: url(../img/monitoring_arrow_bottom.svg) center no-repeat;
  width: 23px;
  height: 40px;
  background-size: contain;
}
.contents_wrap .monitoring_wrap .ex_img_wrap {
  text-align: center;
}
.contents_wrap .monitoring_wrap .ex_img_wrap .pc_mobile {
  display: none;
}
.contents_wrap .monitoring_wrap .ex_img_wrap .ex_mobile {
  box-shadow: 0 0 6px 1px rgba(0, 0, 0, 0.08);
  margin: 40px auto 160px;
  max-width: 100%;
}

@media all and (min-width: 768px) {
  .about_title_wrap {
    padding: 220px 0 200px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap {
    margin-top: 80px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap .icon_house {
    width: 60px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap h2 {
    font-size: 26px;
    margin-bottom: 16px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap ul {
    margin: 0 auto 60px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap ul li {
    font-size: 16px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap h3 {
    font-size: 20px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap .sub_text::after {
    height: 40px;
  }
  .contents_wrap article {
    padding-top: 160px;
  }
  .contents_wrap article .title_wrap {
    text-align: center;
  }
  .contents_wrap article .title_wrap h1 {
    font-size: 32px;
  }
  .contents_wrap article .title_wrap > span {
    font-size: 18px;
  }
  .contents_wrap .credit_wrap h1 {
    margin-bottom: 60px;
  }
  .contents_wrap .credit_wrap .con_wrap {
    margin-bottom: 160px;
    display: flex;
    flex-flow: row nowrap;
    justify-content: space-between;
    align-items: center;
  }
  .contents_wrap .credit_wrap .con_wrap ul {
    max-width: 480px;
  }
  .contents_wrap .credit_wrap .con_wrap ul li {
    font-size: 15px;
  }
  .contents_wrap .credit_wrap .con_wrap ul li h2 {
    font-size: 24px;
  }
  .contents_wrap .credit_wrap .con_wrap img {
    max-width: 600px;
  }
  .contents_wrap .credit_wrap .con_wrap ul, .contents_wrap .credit_wrap .con_wrap img {
    width: calc(50% - 10px);
  }
  .contents_wrap .credit_wrap .communication_wrap {
    flex-flow: row-reverse nowrap;
  }
  .contents_wrap .technology_wrap .text_wrap {
    margin: 24px auto 40px;
    max-width: 724px;
  }
  .contents_wrap .technology_wrap .text_wrap li {
    padding: 3px 0 4px;
    font-size: 15px;
    width: 80px;
  }
  .contents_wrap .technology_wrap .img_wrap {
    max-width: 780px;
  }
  .contents_wrap .technology_wrap .img_wrap li {
    width: calc(25% - 15px);
    height: 180px;
    margin-bottom: 20px;
  }
  .contents_wrap .technology_wrap .img_wrap li img {
    width: auto;
  }
  .contents_wrap .monitoring_wrap .title_wrap .sky_blue_bg_wrap {
    font-size: 20px;
    max-width: 640px;
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap {
    margin-top: 40px;
    display: flex;
    justify-content: center;
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap {
    width: 180px;
    max-width: 180px;
    height: 280px;
    margin: 0;
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box {
    width: calc(100% - 16px);
    height: calc(100% - 16px);
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box .text_box {
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box .text_box span {
    display: block;
    margin-top: 12px;
    width: 100%;
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .arrow_icon_wrap {
    margin: auto 20px;
    background: url(../img/monitoring_arrow_right.svg) center no-repeat;
    width: 60px;
    height: 23px;
    background-size: contain;
  }
  .contents_wrap .monitoring_wrap .ex_img_wrap .pc_mobile {
    box-shadow: 0 0 6px 1px rgba(0, 0, 0, 0.08);
    margin: 40px auto 160px;
    display: block;
    max-width: 100%;
  }
  .contents_wrap .monitoring_wrap .ex_img_wrap .ex_mobile {
    display: none;
  }
}
@media all and (min-width: 1024px) {
  .about_title_wrap .center_wrap .about_main_text_wrap {
    margin-top: 80px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap .icon_house {
    width: 80px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap h2 {
    font-size: 32px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap ul {
    margin: 0 auto 60px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap ul li {
    font-size: 20px;
  }
  .about_title_wrap .center_wrap .about_main_text_wrap h3 {
    font-size: 24px;
  }
  .contents_wrap article {
    padding: 160px 20px;
  }
  .contents_wrap article .title_wrap {
    text-align: center;
  }
  .contents_wrap article .title_wrap h1 {
    font-size: 40px;
  }
  .contents_wrap article .title_wrap > span {
    font-size: 20px;
  }
  .contents_wrap .credit_wrap h1 {
    margin-bottom: 80px;
  }
  .contents_wrap .credit_wrap .con_wrap ul li {
    font-size: 16px;
  }
  .contents_wrap .credit_wrap .con_wrap ul li span {
    font-size: 18px;
  }
  .contents_wrap .credit_wrap .con_wrap ul li h2 {
    font-size: 32px;
  }
  .contents_wrap .monitoring_wrap .title_wrap .sky_blue_bg_wrap {
    font-size: 24px;
  }
  .contents_wrap .monitoring_wrap .monitoring_con_wrap .monitoring_icon_wrap .icon_box .text_box span {
    font-size: 16px;
  }
  .contents_wrap .monitoring_wrap .ex_img_wrap .pc_mobile {
    margin: 40px auto 40px;
  }
}