.p_ttl2 {
  background: url("/img/history_mv.jpg") no-repeat center center/cover;
}
@media screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 481px) {
  .p_ttl2 {
    background: url("/img/history_mv@2x.jpg") no-repeat center center/cover;
  }
}
@media screen and (max-width: 480px) {
  .p_ttl2 {
    background: url("/img/history_mv_sp.jpg") no-repeat center center/cover;
  }
}

.p_index {
  width: 1010px;
  margin: 0 auto;
  text-align: left;
  padding-top: 110px;
}
.p_index .copy {
  color: #008e66;
  font-family: "BioRhyme Expanded", sans-serif;
  font-size: 5rem;
}
.p_index .lead {
  margin-top: 60px;
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 1.8rem;
  line-height: 2;
}
@media screen and (max-width: 480px) {
  .p_index {
    width: 88%;
    padding: 28px 0 40px;
  }
  .p_index .copy {
    width: 6em;
    font-size: 3.6rem;
    line-height: 1.25;
  }
  .p_index .lead {
    margin-top: 20px;
    font-size: 1.6rem;
  }
  .p_index .lead br {
    display: none;
  }
}

.p_anc {
  margin-left: -18px;
  margin-right: -18px;
  margin-top: 50px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}
@media screen and (max-width: 480px) {
  .p_anc {
    margin-left: 0;
    margin-right: 0;
    margin-top: 25px;
    -webkit-box-pack: start;
    -ms-flex-pack: start;
    justify-content: flex-start;
    -ms-flex-flow: wrap;
    flex-flow: wrap;
    gap: 12px 0;
  }
}
.p_anc li {
  padding: 0 8px;
}
@media screen and (max-width: 480px) {
  .p_anc li {
    padding: 0;
    width: 90px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  .p_anc li:nth-child(3n+1) {
    margin-left: 0;
  }
  .p_anc li:nth-child(3n+1)::before {
    display: none;
  }
}
.p_anc li + li {
  padding: 0 8px 0 9px;
  position: relative;
}
@media screen and (max-width: 480px) {
  .p_anc li + li {
    padding: 0;
    margin-left: 20px;
  }
}
.p_anc li + li::before {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  top: calc(50% - 10px);
  width: 1px;
  height: 20px;
  background: #e2ebef;
}
@media screen and (max-width: 480px) {
  .p_anc li + li::before {
    left: -20px;
    top: calc(50% - 8px);
    height: 16px;
  }
}
.p_anc a {
  display: block;
  color: inherit;
  text-decoration: none;
  font-size: 1.4rem;
  letter-spacing: 0;
  line-height: 23px;
  padding: 10px;
  border-radius: 4px;
}
@media screen and (max-width: 480px) {
  .p_anc a {
    font-size: 1.2rem;
    line-height: 16px;
    padding: 0;
  }
}
.p_anc a::after {
  content: "";
  display: inline-block;
  vertical-align: top;
  margin-left: 8px;
  width: 23px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #f1f5f7 url("/img/arr1_gr.svg") no-repeat center center/6px;
  -webkit-transform: rotate(90deg);
  transform: rotate(90deg);
}
@media screen and (max-width: 480px) {
  .p_anc a::after {
    margin-left: 4px;
    width: 16px;
    background: #f1f5f7 url("/img/arr1_gr.svg") no-repeat center center/4px;
  }
}
@media (any-hover: hover) {
  .p_anc a:hover {
    background: #f1f5f7;
  }
  .p_anc a:hover::after {
    background: #e2ebef url("/img/arr1_gr.svg") no-repeat center center/6px;
  }
}

main > .start {
  width: 93.3%;
  max-width: 1100px;
  margin: 70px auto 0;
  background: #f1f5f7;
  border-radius: 10px;
  padding: 80px 0 85px;
  text-align: left;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-flow: wrap;
  flex-flow: wrap;
  gap: 30px 35px;
}
main > .start .ttl {
  width: 90%;
  max-width: 910px;
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 2rem;
}
main > .start p {
  width: 68%;
  max-width: 665px;
  font-size: 1.6rem;
  line-height: 1.875;
  margin: -0.4375em 0;
}
@media screen and (max-width: 480px) {
  main > .start {
    width: auto;
    margin: 0;
    border-radius: 0;
    padding: 35px 6% 40px;
    display: block;
  }
  main > .start .ttl {
    width: auto;
    font-size: 1.6rem;
    line-height: 1.875;
  }
  main > .start p {
    width: auto;
    font-size: 1.4rem;
    margin: 10px 0;
  }
}

main > .timeline {
  width: 940px;
  position: relative;
  margin: 25px auto 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  border-left: 1px solid #e2ebef;
  text-align: left;
  padding-left: 74px;
}
main > .timeline .ttl,
main > .timeline .year {
  position: relative;
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
}
main > .timeline .ttl::before,
main > .timeline .year::before {
  content: "";
  display: block;
  position: absolute;
  width: 50px;
  height: 1px;
  left: -74px;
}
main > .timeline .ttl .num,
main > .timeline .year .num {
  font-family: "AvenirNextLTPro-Demi", sans-serif;
  letter-spacing: 0;
  padding-right: 0.05em;
}
main > .timeline .ttl {
  margin-top: 65px;
  color: #008e66;
  font-size: 2rem;
}
main > .timeline .ttl:first-child {
  margin-top: 0;
}
main > .timeline .ttl::before, main > .timeline .ttl::after {
  background: #008e66;
}
main > .timeline .ttl::before {
  top: 1em;
}
main > .timeline .ttl::after {
  content: "";
  display: block;
  position: absolute;
  width: 10px;
  aspect-ratio: 1;
  border-radius: 50%;
  left: -80px;
  top: calc(1em - 4.5px);
}
main > .timeline .ttl .num {
  font-size: 2em;
}
main > .timeline > .event {
  margin-top: 35px;
  background: #008e66;
  border-radius: 10px;
  color: #fff;
  padding: 50px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  gap: 30px;
}
main > .timeline > .event .img {
  width: 168px;
}
main > .timeline > .event .cap {
  margin-top: 6px;
  font-size: 1.1rem;
  line-height: 1.36;
}
main > .timeline > .event > p {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.875;
  margin: -0.4375em 0;
}
main > .timeline ul {
  margin-top: 48px;
}
main > .timeline li {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
}
main > .timeline li .year {
  width: 90px;
  font-size: 1.4rem;
}
main > .timeline li .year::before {
  background: #e2ebef;
}
main > .timeline li + li {
  margin-top: 40px;
}
main > .timeline li.society {
  color: #6f7f88;
}
main > .timeline li.society .year {
  line-height: 2rem;
}
main > .timeline li.society .year::before {
  top: 1em;
}
main > .timeline li.society .year .num {
  font-size: 1.8rem;
  line-height: 1.56;
}
main > .timeline li.society .label {
  margin: 0.2em 0;
  background: #6f7f88;
  color: #fff;
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  line-height: 1.92;
  padding: 0 0.5em;
  margin-right: 16px;
}
main > .timeline li.society .event {
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.75;
}
main > .timeline li:not(.society) .year {
  margin-top: 25px;
  color: #008e66;
  line-height: 2.29;
}
main > .timeline li:not(.society) .year::before {
  top: 1.145em;
}
main > .timeline li:not(.society) .year .num {
  font-size: 2.3rem;
  line-height: 1.39;
}
main > .timeline li:not(.society) .event {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  background: #f1f5f7;
  border-radius: 10px;
  padding: 30px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: wrap;
  flex-flow: wrap;
  gap: 10px 40px;
}
main > .timeline li:not(.society) .event .txt {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
}
main > .timeline li:not(.society) .event p {
  margin: -0.4375em 0;
  font-size: 1.6rem;
  line-height: 1.875;
}
main > .timeline li:not(.society) .event p:first-child {
  font-family: "Inter", "TazuganeGothicStdN-Bold", sans-serif;
  font-weight: 600;
  font-size: 1.8rem;
  line-height: 1.78;
  margin: -0.39em 0;
}
main > .timeline li:not(.society) .event p + p {
  margin: 15px 0 -0.39em;
}
main > .timeline li:not(.society) .event .img {
  max-width: 168px;
}
main > .timeline li:not(.society) .event .img img {
  display: block;
}
main > .timeline li:not(.society) .event .img img + img {
  margin-top: 10px;
}
@media screen and (max-width: 480px) {
  main > .timeline {
    width: 88%;
    margin: 40px auto 0;
    padding-left: 16px;
  }
  main > .timeline .ttl,
  main > .timeline .year {
    padding-left: 20px;
  }
  main > .timeline .ttl::before,
  main > .timeline .year::before {
    width: 25px;
    left: -16px;
  }
  main > .timeline .ttl {
    margin-top: 40px;
  }
  main > .timeline .ttl::before {
    top: 0.75em;
  }
  main > .timeline .ttl::after {
    width: 7px;
    left: -20px;
    top: calc(0.75em - 3px);
  }
  main > .timeline .ttl .num {
    font-size: 1.5em;
  }
  main > .timeline > .event {
    margin-top: 10px;
    padding: 22px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-flow: column;
    flex-flow: column;
    gap: 18px;
  }
  main > .timeline > .event > img {
    -webkit-box-ordinal-group: 3;
    -ms-flex-order: 2;
    order: 2;
  }
  main > .timeline > .event .img {
    -webkit-box-ordinal-group: 3;
    -ms-flex-order: 2;
    order: 2;
    width: 168px;
  }
  main > .timeline > .event .cap {
    margin-top: 6px;
    font-size: 1.1rem;
    line-height: 1.36;
  }
  main > .timeline > .event > p {
    -webkit-box-ordinal-group: 2;
    -ms-flex-order: 1;
    order: 1;
    -webkit-box-flex: 0;
    -ms-flex: none;
    flex: none;
    font-size: 1.4rem;
  }
  main > .timeline ul {
    margin-top: 30px;
  }
  main > .timeline li {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: wrap;
    flex-flow: wrap;
    gap: 10px;
  }
  main > .timeline li .year {
    width: auto;
  }
  main > .timeline li .year br {
    display: none;
  }
  main > .timeline li .event {
    width: 100%;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  main > .timeline li + li {
    margin-top: 25px;
  }
  main > .timeline li.society {
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  main > .timeline li.society .year {
    line-height: 1;
  }
  main > .timeline li.society .year::before {
    top: 0.643em;
  }
  main > .timeline li.society .year .num {
    font-size: 1.8rem;
    line-height: 1;
  }
  main > .timeline li.society .label {
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.73;
    margin-right: 0;
  }
  main > .timeline li.society .event {
    padding-left: 20px;
    font-size: 1.2rem;
    line-height: 1.67;
  }
  main > .timeline li:not(.society) .year {
    margin-top: 0;
    line-height: 1;
    width: 100%;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  main > .timeline li:not(.society) .year::before {
    top: 0.714em;
  }
  main > .timeline li:not(.society) .year .num {
    font-size: 2rem;
    line-height: 1;
  }
  main > .timeline li:not(.society) .event {
    -webkit-box-flex: 0;
    -ms-flex: none;
    flex: none;
    padding: 22px;
    display: block;
  }
  main > .timeline li:not(.society) .event p {
    margin: -0.43em 0;
    font-size: 1.4rem;
    line-height: 1.86;
  }
  main > .timeline li:not(.society) .event p:first-child {
    font-size: 1.4rem;
    line-height: 1.86;
    margin: -0.43em 0;
  }
  main > .timeline li:not(.society) .event p:first-child br {
    display: none;
  }
  main > .timeline li:not(.society) .event p + p {
    margin: 10px 0 -0.43em;
  }
  main > .timeline li:not(.society) .event > img,
  main > .timeline li:not(.society) .event .img {
    margin-top: 20px;
  }
}

main > .future {
  width: 93.3%;
  max-width: 1100px;
  margin: 100px auto 0;
  border-radius: 20px;
  max-width: 1100px;
  aspect-ratio: 2200/1200;
  background: url("/img/history_future.jpg") no-repeat center center/cover;
  color: #fff;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  padding: 45px 50px;
  position: relative;
}
main > .future .txt {
  text-align: left;
  font-family: "TsukuAMGothicLStd-B", sans-serif;
  letter-spacing: 0.05em;
  font-size: 2.5rem;
  line-height: 1.4;
}
main > .future .copyright {
  position: absolute;
  right: 15px;
  bottom: 15px;
  font-size: 1.2rem;
  letter-spacing: 0;
}
@media screen and (max-width: 480px) {
  main > .future {
    margin: 40px auto 0;
    border-radius: 10px;
    height: 256px;
    aspect-ratio: auto;
    background: url("/img/history_future_sp.jpg") no-repeat center center/cover;
    padding: 32px 22px;
  }
  main > .future .txt {
    font-size: 1.8rem;
  }
  main > .future .copyright {
    right: 10px;
    bottom: 10px;
    font-size: 1rem;
  }
}

footer {
  border-top: 1px solid #e2ebef;
  margin-top: 150px;
}
@media screen and (max-width: 480px) {
  footer {
    margin-top: 60px;
  }
}