.hero {
  position: relative;
  height: auto;
  padding: 2rem 0 0;
}

.hero .inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  z-index: 3;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  width: 100%;
  height: 90vh;
  max-height: 43rem;
  margin: auto;
  background: url("/assets/images/about/main-sp.jpg");
  background-repeat: no-repeat;
  background-size: 100% auto;
}

.hero .right {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: absolute;
  z-index: 3;
  top: 0;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: end;
  -ms-flex-align: end;
  align-items: flex-end;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 0 1.5rem;
}

.hero .right .text {
  margin: 3rem auto 0 0;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.hero .right .text br {
  display: inline;
}

.hero .right .link {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 12.5rem;
  height: 3rem;
  margin: auto auto 3rem;
  border: 0.0625rem solid #fff;
  background: rgba(56, 56, 56, 0.9);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.hero .right .link::after {
  content: "";
  width: 1.7rem;
  height: 0.5rem;
  margin: 0 0 0 0.5rem;
  background: url("/assets/images/line/arrow-1.svg");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
}

.hero .left {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  position: relative;
  -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;
  max-width: 16.5rem;
  height: 70%;
  margin: 7.5rem auto 0;
  padding: 1.5rem 1.5rem 6rem;
  background: rgba(56, 56, 56, 0.9);
}

.hero .left .logo {
  width: 6.25rem;
  margin: 0 auto;
  padding: 0 0 1.5rem;
  border-bottom: 1px solid #fff;
}

.hero .left .text {
  margin-top: 1.5rem;
  color: #fff;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  line-height: 1.7;
  text-align: justify;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: 1;
  width: 0;
  height: 0;
  border-style: solid;
  top: 0;
  left: 0;
  border-width: 4rem 60vw 0 0;
  border-color: rgba(56, 56, 56, 0.12) transparent transparent transparent;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: 1;
  width: 0;
  height: 0;
  border-style: solid;
  right: 0;
  bottom: 0;
  border-width: 0 0 4rem 60vw;
  border-color: transparent transparent rgba(56, 56, 56, 0.12) transparent;
}

#sec-1 {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  height: auto;
  padding: 5rem 0 0;
  background: url("/assets/images/logo/tsukuru-white-22.svg");
  background-repeat: no-repeat;
  background-position: center 70%;
  background-size: 100% auto;
}

#sec-1 .inner {
  width: 100%;
  max-width: 18rem;
  margin: 2rem auto 0;
}

#sec-1 .inner .text {
  padding: 1rem 0;
  font-size: 0.875rem;
  line-height: 1.6;
  text-align: justify;
}

#sec-1 .box {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 6.5rem;
  height: 18rem;
  margin: auto;
  padding: 1.75rem;
  background: var(--dark);
  color: #fff;
}

#sec-1 .box .title {
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  -ms-writing-mode: tb-rl;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

#sec-1 .box .label {
  margin-top: 1.5rem;
  padding-top: 0.25rem;
  border-top: 1px solid #fff;
  font-size: 0.75rem;
  text-align: center;
}

#sec-1 .line-1 {
  position: absolute;
  z-index: 30;
  top: 30px;
  left: 50%;
  width: 10px;
  height: 82px;
  -o-object-fit: cover;
  object-fit: cover;
  -o-object-position: center bottom;
  object-position: center bottom;
}

#sec-1 .line-2 {
  display: none;
  position: absolute;
  z-index: 30;
  top: 440px;
  left: 232px;
  width: 500px;
}

#sec-2 {
  padding: 6rem 0;
}

#sec-2 .gruop {
  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-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 6.5rem;
  height: 18rem;
  margin: auto;
  padding: 0;
  background: var(--dark);
  color: #fff;
}

#sec-2 .gruop::before {
  content: "";
  position: absolute;
  z-index: 30;
  top: -30px;
  right: 0;
  left: 10px;
  width: 10px;
  height: 82px;
  margin: auto;
  background: url("../../images/line/line-4.svg");
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
}

#sec-2 .gruop .title {
  margin-bottom: 3rem;
  font-size: 0.9375rem;
  -ms-writing-mode: tb-rl;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

#sec-2 .gruop .label {
  margin: 1rem 0 0;
  padding: 0.5rem 0 0;
  border-top: 0.0625rem solid #fff;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

#sec-2 .gruop .line-3 {
  display: none;
  position: absolute;
  z-index: 30;
  right: 0;
  bottom: -20px;
  left: 0;
  width: 2px;
  margin: auto;
}

#sec-3 {
  padding: 0 0 6rem;
  background: url("/assets/images/logo/tsukuru-white-22.svg");
  background-repeat: no-repeat;
  background-position: 125% top;
  background-size: 150% auto;
}

#sec-3 .inner {
  width: 100%;
  max-width: 18rem;
  margin: auto;
}

#sec-3 .inner .text {
  margin-bottom: 4rem;
  padding: 1rem 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  text-align: justify;
}

#sec-4 {
  position: relative;
  padding-bottom: 7rem;
}

#sec-4 .line-5 {
  position: absolute;
  z-index: 30;
  z-index: -1;
  top: 13.27%;
  left: 23px;
  width: 85%;
  margin: auto;
}

#sec-4 .line-5-sp-1,
#sec-4 .line-5-sp-2,
#sec-4 .line-5-sp-3 {
  position: absolute;
  z-index: -1;
  top: 13.27%;
  left: 23px;
  width: 85%;
  margin: auto;
}

#sec-4 .line-5-sp-1 {
  top: 41%;
}

#sec-4 .line-5-sp-2 {
  top: 72%;
}

#sec-4 .gruop {
  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-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 6.5rem;
  margin: 0 auto;
  padding: 5rem 0 2rem;
  background: var(--dark);
  color: #fff;
}

#sec-4 .gruop .title {
  margin-bottom: 1rem;
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  -ms-writing-mode: tb-rl;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

#sec-4 .gruop .label {
  margin: 1rem 0 0;
  padding: 0.5rem 0 0;
  border-top: 0.0625rem solid #fff;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

#sec-4 .gruop .line-4 {
  position: absolute;
  z-index: 30;
  top: -30px;
  left: 50%;
  width: 10px;
  height: 82px;
  margin: auto;
  -o-object-fit: cover;
  object-fit: cover;
  -o-object-position: center bottom;
  object-position: center bottom;
}

#sec-4 .article {
  margin: 0;
}

#sec-4 .article .area {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  margin-bottom: 3.25rem;
}

#sec-4 .article .area .block {
  width: 100%;
  max-width: 18rem;
  margin: auto;
  padding: 0;
}

#sec-4 .article .area .title {
  margin-top: 2rem;
  margin-bottom: 1.25rem;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

#sec-4 .article .area .text {
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  line-height: 1.5;
  text-align: justify;
}

#sec-4 .article .thumbnails {
  margin: 0 0 6rem;
}

#sec-4 .article .thumbnails img {
  width: 72%;
  height: auto;
  margin: 0 0 0 auto;
}

#sec-4 .article .thumbnails img:nth-child(2) {
  margin: 1.5rem auto 1.5rem 0;
}

#sec-5 {
  position: relative;
  margin-bottom: 12.5rem;
  background: url("/assets/images/logo/otm-new-white-11.svg");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 40% auto;
}

#sec-5 .line-6 {
  display: none;
  position: absolute;
  z-index: 30;
  top: 330px;
  left: 351px;
  width: 370px;
  margin: auto;
}

#sec-5 .flex {
  width: 100%;
  max-width: 64rem;
  margin: auto;
}

#sec-5 .gruop {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 6.5rem;
  height: 18rem;
  margin: 0 auto 2rem;
  padding: 0;
  background: var(--dark);
  color: #fff;
}

#sec-5 .gruop::before {
  content: "";
  position: absolute;
  z-index: 30;
  top: -30px;
  right: 0;
  left: 10px;
  width: 10px;
  height: 82px;
  margin: auto;
  background: url("../../images/line/line-4.svg");
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
}

#sec-5 .gruop .label {
  margin: 1rem 0 0;
  padding: 0.5rem 0 0;
  border-top: 0.0625rem solid #fff;
  font-size: 0.8125rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

#sec-5 .gruop .lead {
  margin-bottom: 3rem;
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  -ms-writing-mode: tb-rl;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

#sec-5 .outline {
  width: 90%;
  max-width: 25rem;
  margin: auto;
  padding: 2rem 1.5rem;
  border: 0.0625rem solid #fff;
}

#sec-5 .outline .bottom {
  margin-top: 3rem;
  text-align: center;
}

#sec-5 .outline .bottom a {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

#sec-5 .outline .bottom a::after {
  content: "";
  width: 1.7rem;
  height: 0.5rem;
  margin: 0 0 0 0.5rem;
  background: url("/assets/images/line/arrow-1.svg");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
}

#sec-5 .outline dl {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}

#sec-5 .outline dl + dl {
  margin-top: 2rem;
}

#sec-5 .outline dl:nth-child(1) dd,
#sec-5 .outline dl:nth-child(2) dd,
#sec-5 .outline dl:nth-child(3) dd,
#sec-5 .outline dl:nth-child(5) dd {
  text-align: center;
}

#sec-5 .outline dt {
  min-width: 6rem;
  margin: 0 auto 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 0.0625rem solid #fff;
  font-size: 0.875rem;
  font-weight: 400;
  text-align: center;
}

#sec-5 .outline dd {
  margin-left: 0;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

#sec-5 .outline dd:nth-child(1),
#sec-5 .outline dd:nth-child(1),
#sec-5 .outline dd:nth-child(1),
#sec-5 .outline dd:nth-child(1) {
  text-align: center;
}

#sec-6 {
  padding-bottom: 10rem;
}

#sec-6 .group {
  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-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 10rem;
  margin: auto;
}

#sec-6 .group .label {
  margin-bottom: 3rem;
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  -ms-writing-mode: tb-rl;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  text-orientation: upright;
}

#sec-6 .group .icon {
  width: 6.125rem;
  height: 6.125rem;
}

#sec-6 .link {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 90%;
  max-width: 18rem;
  margin: auto;
  padding: 1.5rem 0;
  border: 0.0625rem solid var(--dark);
  font-size: 0.9875rem;
}

#sec-6 .link::after {
  content: "";
  width: 1.7rem;
  height: 0.5rem;
  margin: 0 0 0 0.5rem;
  background: url("/assets/images/line/arrow-2.svg");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
}

#sec-6 .line {
  width: 1rem;
  height: 10rem;
  margin: 3.5rem auto;
  -webkit-transform: translateX(7px);
  transform: translateX(7px);
}

#sec-6 .line img {
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  -o-object-position: center bottom;
  object-position: center bottom;
}

@media (min-width: 768px) {
  .hero {
    height: 64rem;
    padding: 8rem 0 0;
  }

  .hero .inner {
    width: calc(100% - 8.75rem);
    margin: 0 0 0 auto;
    background: url("/assets/images/about/main.jpg");
    background-size: cover;
  }

  .hero .right {
    position: relative;
  }

  .hero .right .text {
    margin: 3rem 0 0;
    font-size: 1.75rem;
  }

  .hero .right .text br {
    display: hidden;
  }

  .hero .right .link {
    width: 18.5rem;
    height: 4.5rem;
    margin: 4rem 0 0;
  }

  .hero .left {
    width: 21.5rem;
    height: 100%;
    margin: 0;
    padding: 0 3rem;
  }

  .hero .left .logo {
    width: 10rem;
  }

  .hero::before {
    border-width: 15.5rem 60vw 0 0;
  }

  .hero::after {
    border-width: 0 0 19rem 60vw;
  }

  #sec-1 {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-box-align: end;
    -ms-flex-align: end;
    align-items: flex-end;
    height: 64rem;
    padding: 7rem 0 0;
    background-position: 110% bottom;
    background-size: 900px auto;
  }

  #sec-1 .inner {
    max-width: 38rem;
    margin: auto;
  }

  #sec-1 .inner .text {
    padding: 1rem 3rem;
    font-size: 1.25rem;
  }

  #sec-1 .box {
    position: absolute;
    top: 0;
    left: 0;
    -webkit-box-align: end;
    -ms-flex-align: end;
    align-items: flex-end;
    -webkit-box-pack: end;
    -ms-flex-pack: end;
    justify-content: flex-end;
    width: 26.25rem;
    height: 29.5rem;
    margin: 0;
  }

  #sec-1 .box .title {
    font-size: 1.4375rem;
  }

  #sec-1 .box .label {
    padding-top: 0;
    border-top: 0;
    font-size: 0.8125rem;
    text-align: left;
  }

  #sec-1 .line-1 {
    top: -320px;
    left: 370px;
    width: 15px;
    height: 531px;
  }

  #sec-1 .line-2 {
    display: hidden;
  }

  #sec-2 {
    padding: 11.25rem 0 9rem;
  }

  #sec-2 .gruop {
    width: 10rem;
    height: auto;
    padding: 7.5rem 0;
  }

  #sec-2 .gruop::before {
    top: -150px;
    left: 15px;
    width: 15px;
    height: 238px;
  }

  #sec-2 .gruop .title {
    font-size: 1.4375rem;
  }

  #sec-2 .gruop .label {
    font-size: 0.8125rem;
  }

  #sec-2 .gruop .line-3 {
    display: block;
  }

  #sec-3 {
    padding: 0 0 15rem;
    background-position: -10% top;
    background-size: 900px auto;
  }

  #sec-3 .inner {
    max-width: 38rem;
  }

  #sec-3 .inner .text {
    padding: 1rem 3rem;
    font-size: 1.25rem;
  }

  #sec-4 {
    padding-bottom: 19rem;
  }

  #sec-4 .line-5 {
    top: 450px;
    left: 264px;
    width: 1000px;
  }

  #sec-4 .line-5-sp-1,
  #sec-4 .line-5-sp-2,
  #sec-4 .line-5-sp-3 {
    display: none;
  }

  #sec-4 .gruop {
    width: 10rem;
    padding: 7.5rem 0;
  }

  #sec-4 .gruop .title {
    margin-bottom: 3rem;
    font-size: 1.4375rem;
  }

  #sec-4 .gruop .label {
    font-size: 0.8125rem;
  }

  #sec-4 .gruop .line-4 {
    top: -70px;
    right: 0;
    left: 12px;
    width: 15px;
    height: 142px;
  }

  #sec-4 .article {
    margin-top: 10rem;
  }

  #sec-4 .article .area {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
    margin-bottom: 6.25rem;
  }

  #sec-4 .article .area > * {
    width: 47%;
  }

  #sec-4 .article .area .block {
    width: 32rem;
    max-width: 100%;
    margin: 0;
    padding: 0 2rem;
  }

  #sec-4 .article .area .title {
    margin-top: 5rem;
    font-size: 1.4375rem;
  }

  #sec-4 .article .area .text {
    font-size: 1.25rem;
  }

  #sec-4 .article .thumbnails {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    width: 80%;
    height: 16rem;
    margin: 0;
  }

  #sec-4 .article .thumbnails img {
    width: auto;
    height: 100%;
    margin: 0;
  }

  #sec-4 .article .thumbnails img:nth-child(2) {
    margin: 0;
  }

  #sec-4 .article.left .thumbnails {
    margin: 0 0 0 auto;
  }

  #sec-4 .article.left .thumbnail {
    margin: 0 3% 0 0;
  }

  #sec-4 .article.right .thumbnails {
    margin: 0 auto 0 0;
  }

  #sec-4 .article.right .thumbnail {
    -webkit-box-ordinal-group: 3;
    -ms-flex-order: 2;
    order: 2;
    margin: 0 0 0 3%;
  }

  #sec-4 .article.right .block {
    -webkit-box-ordinal-group: 2;
    -ms-flex-order: 1;
    order: 1;
    margin: 0 0 0 auto;
  }

  #sec-5 {
    margin-bottom: 22.5rem;
  }

  #sec-5 .line-6 {
    display: block;
  }

  #sec-5 .flex {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  }

  #sec-5 .gruop::before {
    display: none;
  }

  #sec-5 .gruop {
    width: 10rem;
    height: 28rem;
    margin: 0 3.75rem;
    padding: 5rem 0;
  }

  #sec-5 .gruop .label {
    font-size: 0.8125rem;
  }

  #sec-5 .gruop .lead {
    font-size: 1.4375rem;
  }

  #sec-5 .outline {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 3rem;
  }

  #sec-5 .outline dl {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
  }

  #sec-5 .outline dl:nth-child(1) dd,
  #sec-5 .outline dl:nth-child(2) dd,
  #sec-5 .outline dl:nth-child(3) dd,
  #sec-5 .outline dl:nth-child(5) dd {
    text-align: left;
  }

  #sec-5 .outline dt {
    min-width: 10rem;
    margin: 0;
    font-size: 1rem;
    text-align: left;
  }

  #sec-5 .outline dd {
    margin-left: 2rem;
    font-size: 1rem;
  }

  #sec-6 {
    padding-bottom: 20rem;
  }

  #sec-6 .group .label {
    font-size: 1.4375rem;
  }

  #sec-6 .link {
    max-width: 26rem;
    font-size: 1.875rem;
  }

  #sec-6 .line {
    height: 100%;
  }
}