@charset "utf-8";

.usageArea {
  display: flex;
  flex-flow: row wrap;
  gap: 0 50px;
  margin-bottom: 50px;
}
.usageArea__item {
  display: flex;
  align-items: center;
  gap: 0 5px;
  font-size: 2rem;
}
.usageArea__item::before {
  content: '';
  display: block;
  width: 24px;
  height: 24px;
  border-radius: 50%;
}
.usageArea__item--alps::before {
  background: #4378e2;
}
.usageArea__item--alpine::before {
  background: #1da4b4;
}
.usageArea__item--alpsalpine::before {
  background: #002f70;
}
@media screen and (max-width: 1023px) {
  .usageArea {
    flex-flow: column nowrap;
    gap: 10px 0;
  }
}

.eraBlock {
  padding-left: 70px;
  position: relative;
}
.eraBlock::before {
  content: '';
  display: block;
  width: 20px;
  height: 100%;
  background: #aaa;
  position: absolute;
  left: 20px;
  top: 60px;
}
.eraBlock:last-child:before {
  height: calc(100% - 60px);
}

@media screen and (max-width: 1023px) {
  .eraBlock {
    padding-left: 40px;
  }
  .eraBlock::before {
    width: 10px;
    height: 100%;
    left: 10px;
    top: 60px;
  }
  .eraBlock:last-child:before {
    height: calc(100% - 60px);
  }
}

.eraBox {
  position: relative;
}
.eraBox::before {
  content: '';
  display: block;
  width: 60px;
  height: 60px;
  background: #fff;
  border: 16px solid #aaa;
  border-radius: 50%;
  position: absolute;
  top: 42px;
  left: -70px;
}
.eraBox__box {
  border: 1px solid #aaa;
  background: #f8f8f8;
  padding: 20px 30px 20px 20px;
}
@media screen and (max-width: 1023px) {
  .eraBox::before {
    content: '';
    display: block;
    width: 30px;
    height: 30px;
    background: #fff;
    border: 8px solid #aaa;
    border-radius: 50%;
    position: absolute;
    top: 32px;
    left: -40px;
  }
  .eraBox__box {
    padding: 10px;
  }
}

.eraAc__title {
  display: flex;
  align-items: center;
  gap: 0 30px;
  position: relative;
  padding-right: 50px;
}
.eraAc__title::-webkit-details-marker {
  display: none;
}

.c-link-arrow01 {
  position: absolute;
  right: 0px;
  top: 50%;
  margin-top: -13px;
}
.c-link-arrow01::after {
  margin: -5px 0 0;
  transform: rotate(225deg);
}
.eraAc[open] .c-link-arrow01::after {
  margin: 3px 0 0;
  transform: rotate(45deg);
}
.eraAc__title:hover .c-link-arrow01 {
  background-color: transparent;
}
.eraAc__title:hover .c-link-arrow01::after {
  border-top: 1px solid var(--site-color-main);
  border-left: 1px solid var(--site-color-main);
}

/*
.eraAc__title::after {
  content: '';
  display: block;
  width: 16px;
  height: 16px;
  border-top: 2px solid #000;
  border-left: 2px solid #000;
  transform: rotate(225deg);
  margin-top: -10px;
}
.eraAc[open] .eraAc__title::after {
  transform: rotate(45deg);
  margin-top: 0px;
}
*/
.eraAc__title-era {
  display: flex;
  align-items: baseline;
  gap: 0 10px;
  flex-shrink: 0;
  color: #aaa;
}
.eraAc__title-eraNum {
  display: block;
  font-family: 'Roboto', sans-serif;
  font-weight: 900;
  font-size: 7rem;
  flex-shrink: 0;
}
.eraAc__title-eraSub {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  flex-shrink: 0;
}
.eraAc__title-icon {
  width: 95px;
  flex-shrink: 0;
}
.eraAc__title-head {
  display: block;
  flex: 1;
  font-size: 2rem;
  font-weight: 500;
}
.eraAc__body {
  display: flex;
  gap: 0 30px;
  padding-top: 20px;
}
.eraAc__body-image {
  width: 232px;
  flex-shrink: 0;
}
.eraAc__body-text {
  flex: 1;
}
@media screen and (max-width: 1023px) {
  .eraAc {
    position: relative;
    padding-bottom: 46px;
  }
  .eraAc__title,
  .eraAc__title::-webkit-details-marker {
    position: static;
    flex-flow: row wrap;
    align-items: flex-start;
    gap: 0 10px;
    padding-right: 0px;
  }
  .c-link-arrow01 {
    top: auto;
    bottom: 0;
    right: 50%;
    margin-top: 0;
    margin-right: -13px;
  }
  .c-link-arrow01::after {
    margin: -5px 0 0;
    transform: rotate(225deg);
  }
  .eraAc[open] .c-link-arrow01::after {
    margin: 3px 0 0;
    transform: rotate(45deg);
  }
  .eraAc__title:hover .c-link-arrow01 {
    background-color: transparent;
  }
  .eraAc__title:hover .c-link-arrow01::after {
    border-top: 1px solid var(--site-color-main);
    border-left: 1px solid var(--site-color-main);
  }
  /*
  .eraAc__title::after {
    right: 50%;
    top: auto;
    bottom: 0;
    margin-top: 0;
    margin-right: -10px;
  }
  .eraAc[open] .eraAc__title::after {
    transform: rotate(45deg);
    bottom: -8px;
  }
*/
  .eraAc__title-era {
    width: 100%;
  }
  .eraAc__title-eraNum {
    font-size: 4rem;
  }
  .eraAc__title-eraSub {
    font-size: 2rem;
  }
  .eraAc__title-icon {
    width: 60px;
    flex-shrink: 0;
  }
  .eraAc__title-icon img {
    width: 60px;
    height: 60px;
  }
  .eraAc__title-head {
    font-size: 1.8rem;
  }
  .eraAc__body {
    display: block;
    padding-top: 20px;
  }
  .eraAc__body-image {
    width: 100%;
    margin-bottom: 10px;
  }
  .eraAc__body-text {
    flex: 1;
  }
}

.itemBlockList {
  display: flex;
  gap: 0 20px;
  padding: 0 20px;
}
.itemBlockList__block {
  width: 100%;
  padding: 50px 20px;
  display: flex;
  flex-flow: column nowrap;
}
.itemBlockList__block--flexEnd {
  justify-content: flex-end;
}
.itemBlockList__block--alps {
  background: rgba(67, 120, 226, 0.1);
}
.itemBlockList__block--alpine {
  background: rgba(29, 164, 180, 0.1);
}
.itemBlockList__block--alpsalpine {
  padding: 50px 30px 50px 20px;
  background: rgba(0, 51, 153, 0.2);
}
.itemBlockList__block--nonBottom {
  padding: 50px 20px 20px;
}
.itemBlockList__block--collaboration {
  padding: 22px 30px 22px 20px;
  background: #dee9ff;
}
.itemBlockList__block--hasToEnd {
  position: relative;
}
.itemBlockList__block--hasToEnd::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 32px;
  width: 6px;
  height: 50%;
  display: block;
}
.itemBlockList__block--alps.itemBlockList__block--hasToEnd::before {
  background: #4378e2;
}
.itemBlockList__block--merged {
  position: relative;
  padding-top: 30px;
}
.itemBlockList__block--merged::before {
  content: '';
  position: absolute;
  top: 0;
  left: 32px;
  width: 6px;
  height: 45px;
  display: block;
  background: #4378e2;
}
.itemBlockList__block--merged::after {
  content: '';
  position: absolute;
  top: 0;
  left: calc(50% + 10px + 32px);
  width: 6px;
  height: 45px;
  display: block;
  background: #1da4b4;
}
@media screen and (max-width: 1023px) {
  .itemBlockList {
    display: block;
    padding: 0;
  }
  .itemBlockList__block {
    width: 100%;
    padding: 30px 10px;
    display: block;
  }
  .itemBlockList__block--alps {
    background: rgba(67, 120, 226, 0.1);
  }
  .itemBlockList__block--alpine {
    background: rgba(29, 164, 180, 0.1);
  }
  .itemBlockList__block--alpsalpine {
    padding: 30px 10px;
    background: rgba(0, 51, 153, 0.2);
  }
  .itemBlockList__block--nonBottom {
    padding: 30px 10px;
  }
  .itemBlockList__block--collaboration {
    padding: 30px 10px;
    background: #dee9ff;
  }
  .itemBlockList__block--hasToEnd::before {
    display: none;
  }
  .itemBlockList__block--merged {
    padding-top: 0px;
  }
  .itemBlockList__block--merged::before {
    display: none;
  }
  .itemBlockList__block--merged::after {
    display: none;
  }
}

.itemBox {
  display: flex;
  padding-bottom: 40px;
  position: relative;
}
.itemBox::after {
  content: '';
  display: block;
  width: 6px;
  height: 100%;
  position: absolute;
  top: 20px;
  left: 12px;
}
.itemBox:last-child {
  padding-bottom: 0;
}
.itemBox:last-child::after {
  display: none;
}
.itemBox.itemBox--hasBorder:last-child {
  padding-bottom: 40px;
}
.itemBox.itemBox--hasBorder:last-child::after {
  display: block;
}
.itemBox--alps::after {
  background: #4378e2;
}
.itemBox--alpine::after {
  background: #1da4b4;
}
.itemBox--alpsalpine::after {
  background: var(--site-color-main);
}
.itemBox--logo {
  padding-bottom: 50px;
  justify-content: center;
}
.itemBox--logo::after {
  display: none;
}
.itemBox--hasTopBorder::after {
  content: '';
  display: block;
  width: 6px;
  height: calc(100% + 60px);
  position: absolute;
  top: -50px;
  left: 12px;
}
.itemBox--merged::before {
  content: '';
  display: block;
  width: calc(50% + 10px + 32px);
  height: 6px;
  position: absolute;
  top: 13px;
  left: 11px;
  background: #1da4b4;
}

.itemBox__bullet {
  width: 50px;
  flex-shrink: 0;
  position: relative;
}
.itemBox__bullet-item {
  display: block;
  width: 30px;
  height: 30px;
  border-radius: 50%;
}
.itemBox__bullet-item + .itemBox__bullet-item {
  margin-top: 10px;
}
.itemBox__bullet-item--alps {
  background: #4378e2;
}
.itemBox__bullet-item--alpine {
  background: #1da4b4;
}
.itemBox__bullet-item--alpsalpine {
  background: var(--site-color-main);
}
.itemBox__year {
  width: 97px;
  flex-shrink: 0;
  font-family: 'Roboto', sans-serif;
  font-weight: 400;
  font-size: 3rem;
  line-height: 1;
}
.itemBox__title {
  flex: 1;
}
.itemBox__item + .itemBox__item {
  margin-top: 10px;
}
.itemBox__item-btn,
.itemBox__item-txt {
  position: relative;
  display: block;
  width: 100%;
  padding-right: 20px;
  box-sizing: border-box;
}
.itemBox__item-btn:hover {
  text-decoration: underline;
}
.itemBox__item-btn::before {
  content: '';
  display: block;
  width: 12px;
  height: 2px;
  background: #000;
  position: absolute;
  right: 0;
  bottom: 10px;
}
.itemBox__item-btn::after {
  content: '';
  display: block;
  width: 2px;
  height: 12px;
  background: #000;
  position: absolute;
  right: 5px;
  bottom: 5px;
}
.itemBox__item-btn--large {
  padding-right: 28px;
}
.itemBox__item-btn--large::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: #000;
  position: absolute;
  right: 0;
  bottom: 11px;
}
.itemBox__item-btn--large::after {
  content: '';
  display: block;
  width: 2px;
  height: 20px;
  background: #000;
  position: absolute;
  right: 9px;
  bottom: 2px;
}
@media screen and (max-width: 1023px) {
  .itemBox {
    display: block;
    padding-bottom: 40px;
    padding-left: 34px;
  }
  .itemBox::after {
    content: '';
    display: block;
    width: 6px;
    height: 100%;
    position: absolute;
    top: 20px;
    left: 9px;
  }
  .itemBox:last-child {
    padding-bottom: 0;
  }
  .itemBox:last-child::after {
    display: none;
  }
  .itemBox.itemBox--hasBorder:last-child {
    padding-bottom: 40px;
  }
  .itemBox.itemBox--hasBorder:last-child::after {
    display: block;
  }
  .itemBox--alps::after {
    background: #4378e2;
  }
  .itemBox--alpine::after {
    background: #1da4b4;
  }
  .itemBox--alpsalpine::after {
    background: var(--site-color-main);
  }
  .itemBox--logo {
    padding-left: 0;
    padding-bottom: 40px;
  }
  .itemBox--logo::after {
    display: none;
  }
  .itemBox--hasTopBorder::after {
    content: '';
    display: block;
    width: 6px;
    height: calc(100% + 60px);
    position: absolute;
    top: -50px;
    left: 12px;
  }
  .itemBox--merged::before {
    content: '';
    display: block;
    width: calc(50% + 10px + 32px);
    height: 6px;
    position: absolute;
    top: 13px;
    left: 11px;
    background: #1da4b4;
  }

  .itemBox__bullet {
    width: 24px;
    flex-shrink: 0;
    position: absolute;
    left: 0px;
  }
  .itemBox__bullet-item {
    display: block;
    width: 24px;
    height: 24px;
    border-radius: 50%;
  }
  .itemBox__bullet-item + .itemBox__bullet-item {
    margin-top: 10px;
  }
  .itemBox__bullet-item--alps {
    background: #4378e2;
  }
  .itemBox__bullet-item--alpine {
    background: #1da4b4;
  }
  .itemBox__bullet-item--alpsalpine {
    background: var(--site-color-main);
  }
  .itemBox__year {
    width: auto;
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 10px;
  }
  .itemBlockList__block--collaboration .itemBox__year {
    padding-top: 14px;
  }
  .itemBox__title {
    flex: 1;
  }
  .itemBox__item + .itemBox__item {
    margin-top: 10px;
  }
  .itemBox__item-btn,
  .itemBox__item-txt {
    position: relative;
    display: block;
    width: 100%;
    padding-right: 16px;
    box-sizing: border-box;
  }
  .itemBox__item-btn:hover {
    text-decoration: underline;
  }
  .itemBox__item-btn::before {
    content: '';
    display: block;
    width: 12px;
    height: 2px;
    background: #000;
    position: absolute;
    right: 0;
    bottom: 10px;
  }
  .itemBox__item-btn::after {
    content: '';
    display: block;
    width: 2px;
    height: 12px;
    background: #000;
    position: absolute;
    right: 5px;
    bottom: 5px;
  }
  .itemBox__item-btn--large {
    padding-right: 16px;
  }
  .itemBox__item-btn--large::before {
    content: '';
    display: block;
    width: 12px;
    height: 2px;
    background: #000;
    position: absolute;
    right: 0;
    bottom: 10px;
  }
  .itemBox__item-btn--large::after {
    content: '';
    display: block;
    width: 2px;
    height: 12px;
    background: #000;
    position: absolute;
    right: 5px;
    bottom: 5px;
  }
}

.historyModalContainer {
  max-width: 460px;
  padding: 20px !important;
}
.modalHeadingYear {
  font-size: 2.5rem;
  font-weight: 700;
}
.modalHeadingTitle {
  font-weight: 700;
  margin-bottom: 10px;
}
.modalImage img {
  height: auto;
}