.about .visual {
  background: url("/assets/images/about/bg_visual.jpg") 50% 50%/cover no-repeat;
  color: var(--white-color);
}
.about .visual .inner {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: column;
}
.about .section1 .inner {
  display: flex;
  justify-content: center;
  flex-flow: column;
}
.about .section1 ul {
  display: flex;
  flex-flow: column;
  gap: 3.6rem;
}
.about .section1 ul li {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.about .section1 ul li:nth-child(odd) {
  margin-left: auto;
}
.about .section1 ul img {
  width: 50%;
  max-width: 64.3rem;
}
.about .section1 ul .desc {
  max-width: 48rem;
}
.about .section1 ul .desc strong {
  font-size: 2.4rem;
}
.about .section1 ul .desc span {
  position: relative;
  margin-top: 3.5rem;
}
.about .section1 ul .desc span::before {
  position: absolute;
  top: -2.2rem;
  left: -2rem;
  content: "";
  width: 100%;
  height: 0.1rem;
  background-color: var(--gray-color2);
}
.about .section2 {
  background-color: var(--gray-color);
}
.about .section2 .inner {
  display: flex;
  justify-content: center;
  flex-flow: column;
}
.about .section2 ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(21rem, 100%), 1fr));
  -moz-column-gap: 6.1rem;
       column-gap: 6.1rem;
  row-gap: 2.4rem;
  margin-top: 4.8rem;
}
.about .section2 ul .circle {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: column;
  width: 22.8rem;
  height: 22.8rem;
  margin: 0 auto;
  border-radius: 50%;
  background-color: var(--white-color);
}
.about .section2 ul .circle::before {
  content: "";
  display: block;
  width: 5.6rem;
  height: 5.6rem;
}
.about .section2 ul .circle[data-icon=define]::before {
  background: url("/assets/images/icons/icon_define.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle[data-icon=discover]::before {
  background: url("/assets/images/icons/icon_search.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle[data-icon=delve]::before {
  background: url("/assets/images/icons/icon_delve.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle[data-icon=design]::before {
  background: url("/assets/images/icons/icon_design.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle[data-icon=detect]::before {
  background: url("/assets/images/icons/icon_detect.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle[data-icon=deliver]::before {
  background: url("/assets/images/icons/icon_deliver.svg") 50% 50%/cover no-repeat;
}
.about .section2 ul .circle strong {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: column;
  font-size: 1.8rem;
}
.about .section2 ul .circle strong span:first-child {
  margin: 1.6rem 0 0.8rem;
  font-size: 2.4rem;
}
.about .section2 ul .circle strong em {
  color: var(--primary-color);
}
.about .section2 ul p {
  margin-top: 4rem;
  text-align: center;
}
.about .section2 .graph-area {
  margin-top: 4.8rem;
}
.about .section3 .inner {
  display: flex;
  justify-content: center;
  flex-flow: column;
}
.about .section3 .desc {
  margin-top: 3.2rem;
}
.about .section3 ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(39rem, 100%), 1fr));
  gap: 5.6rem;
  margin-top: 6.4rem;
}
.about .section3 ul li {
  border-radius: 1.6rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: column;
  height: 45.6rem;
  background-color: var(--gray-color);
}
.about .section3 ul li::before {
  border-radius: 1.6rem;
  content: "";
  display: block;
  width: 10.4rem;
  height: 10.4rem;
}
.about .section3 ul li:nth-of-type(1)::before {
  background: var(--white-color) url("/assets/images/icons/icon_business.svg") 50% 50%/5.6rem no-repeat;
}
.about .section3 ul li:nth-of-type(2)::before {
  background: var(--white-color) url("/assets/images/icons/icon_collabo.svg") 50% 50%/5.6rem no-repeat;
}
.about .section3 ul li:nth-of-type(3)::before {
  background: var(--white-color) url("/assets/images/icons/icon_bell.svg") 50% 50%/5.6rem no-repeat;
}
.about .section3 ul li strong {
  display: flex;
  align-items: center;
  margin-top: 4.8rem;
  font-size: 10.4rem;
  line-height: 130%;
}
.about .section3 ul li strong em {
  color: var(--primary-color);
}
.about .section3 ul li strong span {
  font-size: 4.8rem;
  margin-left: 0.8rem;
}
.about .section3 ul li p {
  font-size: 2.4rem;
  font-weight: 600;
  margin-top: 1rem;
  color: var(--gray-color3);
}
.about .section4 {
  height: 61.6rem;
}
.about .section4 .inner {
  min-height: auto;
  padding: 8rem 2rem;
}
.about .section4 .partner-wrap {
  position: absolute;
  bottom: 8rem;
  left: 0;
}

@media screen and (max-width: 768px) {
  .about .section1 ul {
    margin-top: 3.2rem;
  }
  .about .section1 ul li {
    flex-flow: column;
    align-items: flex-start;
  }
  .about .section1 ul img {
    width: 100%;
    max-width: 100%;
  }
  .about .section1 ul .desc {
    max-width: 100%;
  }
  .about .section3 ul {
    gap: 3.6rem;
  }
  .about .section3 ul li {
    height: 37rem;
  }
  .about .section3 ul li strong {
    margin-top: 2.8rem;
    font-size: 8rem;
  }
  .about .section4 .partner-wrap {
    bottom: 11rem;
  }
}