html {
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

img {
  max-width: 100%;
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
.history-kv {
  position: relative;
  overflow: hidden;
  padding-bottom: 5em;
}
.history-kv.is-kv-loading:after {
  opacity: 0;
}
.history-kv.is-kv-loading .history-kv__copy,
.history-kv.is-kv-loading .kv__loop {
  opacity: 0;
  transform: translateY(24px);
}
.history-kv:after {
  background: url(../img/earth.svg) center bottom no-repeat;
  background-size: 1400px auto;
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  bottom: -16em;
  left: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.7s ease;
}
.history-kv__area {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  text-align: center;
}
.history-kv h1 {
  font-size: 40px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  letter-spacing: 0.1em;
}
.history-kv h1 span {
  color: #4600F7;
}
.history-kv .history-kv__copy {
  font-size: 20px;
  line-height: 2;
  margin: 0 auto 1.4em;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.15em;
}
.history-kv .history-kv__copy span {
  color: #4600F7;
}
.history-kv__inner .kv__img {
  position: relative;
  top: -40px;
  margin: 0 auto;
  width: 100%;
  max-width: 900px;
  overflow: hidden;
}
.history-kv__inner .kv__img video {
  display: block;
  width: 100%;
  height: auto;
  transform: scale(1.15);
  transform-origin: center;
}
.history-kv__inner .kv__loop {
  position: relative;
  overflow: hidden;
  width: 100%;
  margin: 80px auto;
}
.history-kv__inner .kv__loop__inner {
  display: flex;
  width: -moz-max-content;
  width: max-content;
  animation: loop-scroll 80s linear infinite;
}
.history-kv__inner .kv__loop img {
  max-width: 40%;
  height: 240px;
  margin-right: 20px;
}
@keyframes loop-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}
@media (max-width: 640px) {
  .history-kv__inner .kv__img {
    top: -30px;
  }
  .history-kv__inner .kv__img video {
    transform: scale(1.2);
  }
  .history-kv__inner .kv__loop {
    margin: 40px auto;
  }
}

.history-outline {
  background: #1D246E;
  color: #fff;
  padding: 12em 0;
}
.history-outline__container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
}
.history-outline .left-area {
  width: 40%;
  position: sticky;
  top: 100px;
}
.history-outline .left-area h3 {
  line-height: 1.5;
  letter-spacing: 0.15em;
  font-size: 40px;
  font-weight: bold;
  margin-bottom: 20px;
}
.history-outline .left-area p {
  font-size: 15px;
  line-height: 2.2;
}
.history-outline .right-area {
  width: 50%;
}
.history-outline .right-area ul li {
  margin-bottom: 6em;
}
.history-outline .right-area ul li:last-child {
  margin-bottom: 10em;
}
.history-outline .right-area ul li .title {
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.history-outline .right-area ul li .title .num {
  font-family: "Arial", sans-serif;
  padding-right: 0.8em;
  font-size: 28px;
  font-weight: bold;
  text-align: center;
  position: relative;
  line-height: 1;
}
.history-outline .right-area ul li .title .num:after {
  content: "";
  display: block;
  width: 1px;
  height: 21px;
  background: #fff;
  position: absolute;
  opacity: 0.3;
  right: 0;
  top: 5px;
}
.history-outline .right-area ul li .title h4 {
  line-height: 1;
  padding-left: 1em;
  font-size: 24px;
  font-weight: bold;
}
.history-outline .right-area ul li .title .year {
  margin-left: auto;
  font-family: "Arial", sans-serif;
  color: #ACB1E6;
  font-size: 16px;
  letter-spacing: 0;
}
.history-outline .right-area ul li .img {
  margin: 1.5em auto 1.2em;
}
.history-outline .right-area ul li .txt h5 {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 10px;
}
.history-outline .right-area ul li .txt p {
  font-size: 15px;
  line-height: 2;
}

.history-timeline__content .fade-up {
  opacity: 1;
  transform: none;
  transition: none;
}
.history-timeline__container {
  position: relative;
}
.history-timeline__nav-sentinel {
  height: 1px;
  width: 100%;
  margin-bottom: -1px;
  pointer-events: none;
}
.history-timeline__nav {
  position: sticky;
  top: 60px;
  z-index: 10;
  background: #8b90bd;
  transition: box-shadow 0.2s ease;
}
.history-timeline__nav ul {
  padding: 4em 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transition: padding 0.3s ease;
}
.history-timeline__nav ul li {
  margin: 0 1em;
}
.history-timeline__nav ul li a {
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
  display: block;
  width: 280px;
  height: 84px;
  position: relative;
  color: #fff;
  line-height: 1;
  display: flex;
  flex-direction: column;
  align-self: center;
  justify-content: center;
  background: #ACB1E6;
  transition: background 0.2s linear, width 0.3s ease, height 0.3s ease;
}
.history-timeline__nav ul li a.active {
  background: #4600F7;
}
.history-timeline__nav ul li a.active:hover {
  background: #4600F7;
}
.history-timeline__nav ul li a.active .num {
  opacity: 1;
}
.history-timeline__nav ul li a.active h6 {
  opacity: 1;
  font-weight: bold;
}
.history-timeline__nav ul li a.active .year {
  opacity: 1;
}
.history-timeline__nav ul li a:hover {
  background: #949ad9;
}
.history-timeline__nav ul li a .num {
  position: absolute;
  top: 10px;
  left: 10px;
  letter-spacing: 0;
  font-family: "Arial", sans-serif;
  font-size: 16px;
  font-weight: bold;
  opacity: 0.4;
  transition: top 0.3s ease, left 0.3s ease, font-size 0.3s ease;
}
.history-timeline__nav ul li a h6 {
  text-align: center;
  font-size: 22px;
  font-weight: normal;
  margin-bottom: 8px;
  opacity: 0.4;
  transition: font-size 0.3s ease, margin-bottom 0.3s ease;
}
.history-timeline__nav ul li a .year {
  text-align: center;
  font-family: "Arial", sans-serif;
  font-size: 10px;
  font-weight: bold;
  opacity: 0.4;
  transition: font-size 0.3s ease;
}
.history-timeline__nav.is-stuck ul {
  padding: 1.25em 0 0;
}
.history-timeline__nav.is-stuck ul li a {
  width: 240px;
  height: 64px;
}
.history-timeline__nav.is-stuck ul li a .num {
  top: 6px;
  left: 8px;
  font-size: 14px;
}
.history-timeline__nav.is-stuck ul li a h6 {
  font-size: 18px;
  margin-bottom: 4px;
}
.history-timeline__nav.is-stuck ul li a .year {
  font-size: 9px;
}
.history-timeline__content .era-title {
  background: #E0E2F9;
  padding: 5.4em 0;
  text-align: center;
}
.history-timeline__content .era-title h5 {
  line-height: 1;
  font-size: 36px;
  font-weight: bold;
  color: #1D246E;
}
.history-timeline__content .era-title .year {
  margin-top: 16px;
  line-height: 1;
  color: #4600F7;
  font-size: 15px;
  letter-spacing: 0;
  font-weight: bold;
  font-family: "Arial", sans-serif;
}
.history-timeline__content .era-title .description {
  margin-top: 20px;
  font-size: 16px;
  font-weight: 500;
  color: #1D246E;
  line-height: 2.4;
}
.history-timeline__content .era-content {
  display: flex;
  justify-content: center;
  align-items: stretch;
  position: relative;
  --timeline-line-progress: 0;
}
.history-timeline__content .era-content .left-area, .history-timeline__content .era-content .right-area {
  position: relative;
  padding: 14em 0 8em;
}
.history-timeline__content .era-content__title {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
}
.history-timeline__content .era-content__title p {
  color: #C2C8E2;
  font-size: 28px;
  opacity: 0.5;
  font-weight: bold;
}
.history-timeline__content .era-content .left-area {
  width: 50%;
  text-align: right;
}
.history-timeline__content .era-content .left-area:before, .history-timeline__content .era-content .left-area:after {
  content: "";
  position: absolute;
  top: 0;
  right: -2px;
  width: 4px;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.history-timeline__content .era-content .left-area:before {
  background: #f2f3ff;
}
.history-timeline__content .era-content .left-area:after {
  background: #c9ccff;
  transform: scaleY(var(--timeline-line-progress));
  transform-origin: top center;
  will-change: transform;
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.history-timeline__content .era-content .left-area dl {
  justify-content: flex-end;
}
.history-timeline__content .era-content .left-area dl dt {
  background: rgba(197, 206, 227, 0.7);
  right: -7px;
}
.history-timeline__content .era-content .left-area dl dd {
  padding-right: 6.2em;
}
.history-timeline__content .era-content .left-area dl dd:before {
  right: 0;
}
.history-timeline__content .era-content .left-area dl dd h6, .history-timeline__content .era-content .left-area dl dd p {
  color: #717171;
}
.history-timeline__content .era-content .right-area {
  width: 50%;
}
.history-timeline__content .era-content .right-area dl {
  justify-content: flex-start;
}
.history-timeline__content .era-content .right-area dl dt {
  left: -7px;
}
.history-timeline__content .era-content .right-area dl dd {
  padding-left: 6.2em;
}
.history-timeline__content .era-content .right-area dl dd:before {
  left: 0;
  border-top: 1px solid #1d246e;
}
.history-timeline__content .era-content dl {
  position: relative;
  display: flex;
  align-items: flex-start;
  z-index: 1;
  --timeline-item-progress: 0;
  --timeline-item-content-progress: 0;
  --timeline-item-shift: 0px;
}
.history-timeline__content .era-content dl dt {
  z-index: 2;
  top: 15px;
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #4600F7;
}
.history-timeline__content .era-content dl dd {
  line-height: 1.5;
}
.history-timeline__content .era-content dl dd:before {
  content: "";
  display: block;
  width: 80px;
  border-top: 1px dotted #ccceed;
  height: 1px;
  position: absolute;
  top: 22px;
  transform: scaleX(var(--timeline-item-progress));
  opacity: calc(0.2 + var(--timeline-item-progress) * 0.8);
  will-change: transform;
  transition: transform 0.75s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.55s ease-out;
}
.history-timeline__content .era-content dl dd > * {
  opacity: var(--timeline-item-content-progress);
  transform: translateX(calc((1 - var(--timeline-item-content-progress)) * var(--timeline-item-shift)));
  will-change: opacity, transform;
  transition: opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1), transform 0.95s cubic-bezier(0.22, 1, 0.36, 1);
}
.history-timeline__content .era-content dl dd .year {
  letter-spacing: 0;
  font-size: 36px;
  font-family: "Arial", sans-serif;
  font-weight: bold;
  margin-bottom: 8px;
  color: #1D246E;
  line-height: 1.3;
}
.history-timeline__content .era-content dl dd h5 {
  display: inline-block;
  font-size: 16px;
  letter-spacing: 0;
  line-height: 1.2;
  padding: 8px 16px;
  color: #1D246E;
  font-weight: bold;
  border: 1px solid #1D246E;
  margin-bottom: 2em;
}
.history-timeline__content .era-content dl dd h6 {
  font-size: 17px;
  font-weight: bold;
  margin-bottom: 8px;
  line-height: 1;
  letter-spacing: 0;
}
.history-timeline__content .era-content dl dd .photo {
  margin: 36px auto 12px;
}
.history-timeline__content .era-content dl dd .photo img {
  display: block;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 5/3;
  object-fit: cover;
  border-radius: 8px;
}
.history-timeline__content .era-content dl dd .photo:first-of-type {
  margin-top: 0;
}
.history-timeline__content .era-content dl dd p {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 1em;
}
.history-timeline__content .era-content dl dd .timeline-list {
  margin: 0 0 1em;
  padding: 0;
  list-style: none;
}
.history-timeline__content .era-content dl dd .timeline-list li {
  position: relative;
  padding-left: 1em;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0;
}
.history-timeline__content .era-content dl dd .timeline-list li:before {
  content: "・";
  position: absolute;
  left: 0;
}
.history-timeline__content .era-content dl dd .timeline-list li + li {
  margin-top: 0.6em;
}
.history-timeline__content .era-content .left-area dl {
  --timeline-item-shift: 24px;
}
.history-timeline__content .era-content .left-area dl dd:before {
  transform-origin: right center;
}
.history-timeline__content .era-content .right-area dl {
  --timeline-item-shift: -24px;
}
.history-timeline__content .era-content .right-area dl dd:before {
  transform-origin: left center;
}
.history-timeline__end {
  text-align: center;
  background: url(../img/timeline__end_bg.png) center center no-repeat;
  background-size: cover;
  padding: 8em 0;
  color: #fff;
}
.history-timeline__end h6 {
  font-size: 40px;
  font-weight: bold;
  margin-bottom: 20px;
}
.history-timeline__end p {
  letter-spacing: 0.12em;
  font-size: 17px;
  line-height: 2.4;
}

@media (max-width: 1200px) {
  .history-kv:after {
    background-size: 1100px auto;
    bottom: -14em;
  }
  .history-kv .history-kv__copy {
    padding: 0 1.5em;
    font-size: 18px;
    line-height: 1.8;
  }
  .history-kv__a .a__img {
    max-width: 960px;
  }
  .history-kv__a .a__loop {
    margin: 56px auto;
  }
  .history-kv__a .a__loop img {
    max-width: 48%;
    height: 200px;
  }
  .history-outline {
    padding: 9em 1.5em;
  }
  .history-outline__container {
    gap: 3em;
  }
  .history-outline .left-area {
    width: 42%;
  }
  .history-outline .left-area h3 {
    font-size: 34px;
  }
  .history-outline .right-area {
    width: 58%;
  }
  .history-outline .right-area ul li {
    margin-bottom: 4.5em;
  }
  .history-outline .right-area ul li:last-child {
    margin-bottom: 0;
  }
  .history-outline .right-area ul li .title .num {
    font-size: 24px;
  }
  .history-outline .right-area ul li .title h4 {
    font-size: 22px;
  }
  .history-outline .right-area ul li .txt h5 {
    font-size: 22px;
  }
}
@media (max-width: 960px) {
  .history-kv {
    padding-bottom: 3.25em;
  }
  .history-kv:after {
    background-size: 760px auto;
    bottom: -10em;
  }
  .history-kv h1 {
    font-size: 32px;
  }
  .history-kv .history-kv__copy {
    padding: 0 1.25em;
    font-size: 18px;
    line-height: 2.4;
    letter-spacing: 0.08em;
  }
  .history-kv__a .a__img {
    top: -12px;
  }
  .history-kv__a .a__loop {
    margin: 40px auto;
  }
  .history-kv__a .a__loop img {
    max-width: 72%;
    height: 180px;
  }
  .history-outline {
    padding: 2.8em 1.25em;
  }
  .history-outline__container {
    display: block;
  }
  .history-outline .left-area,
  .history-outline .right-area {
    width: 100%;
  }
  .history-outline .left-area {
    position: static;
    margin-bottom: 3em;
  }
  .history-outline .left-area h3 {
    font-size: 36px;
    margin-bottom: 16px;
  }
  .history-outline .left-area p {
    font-size: 14px;
    line-height: 2;
  }
  .history-outline .right-area ul li {
    margin-bottom: 3em;
  }
  .history-outline .right-area ul li .title {
    flex-wrap: wrap;
    row-gap: 10px;
  }
  .history-outline .right-area ul li .title .num {
    width: auto;
    padding-right: 0.7em;
    font-size: 24px;
  }
  .history-outline .right-area ul li .title .num:after {
    height: 18px;
    top: 3px;
  }
  .history-outline .right-area ul li .title h4 {
    padding-left: 0.8em;
    font-size: 24px;
  }
  .history-outline .right-area ul li .img {
    margin: 1em auto 0.6em;
  }
  .history-outline .right-area ul li .txt h5 {
    font-size: 20px;
    line-height: 1.5;
  }
  .history-outline .right-area ul li .txt p {
    font-size: 14px;
    line-height: 1.9;
  }
  .history-timeline__nav {
    top: 90px;
  }
  .history-timeline__nav ul {
    width: 96%;
    margin: auto;
    padding: 2em 0 0;
    gap: 2%;
  }
  .history-timeline__nav ul li {
    margin: 0;
    width: 32%;
  }
  .history-timeline__nav ul li a {
    width: 100%;
    height: 64px;
  }
  .history-timeline__nav.is-stuck ul li a {
    width: 100%;
  }
  .history-timeline__content .era-title {
    padding: 2em 1.5em;
  }
  .history-timeline__content .era-title h5 {
    font-size: 30px;
  }
  .history-timeline__content .era-title .description {
    font-size: 15px;
    line-height: 2;
  }
  .history-timeline__content .era-content {
    margin-left: 1em;
    --timeline-mobile-rail-left: 18px;
    display: flex;
    flex-direction: column;
    padding: 1em 0;
  }
  .history-timeline__content .era-content:before, .history-timeline__content .era-content:after {
    content: "";
    position: absolute;
    top: 0;
    left: var(--timeline-mobile-rail-left);
    width: 4px;
    height: 100%;
    z-index: 0;
    pointer-events: none;
  }
  .history-timeline__content .era-content:before {
    background: #f2f3ff;
  }
  .history-timeline__content .era-content:after {
    background: #c9ccff;
    transform: scaleY(var(--timeline-line-progress));
    transform-origin: top center;
    will-change: transform;
  }
  .history-timeline__content .era-content .left-area,
  .history-timeline__content .era-content .right-area {
    display: contents;
    width: auto;
    padding: 0;
    text-align: left;
  }
  .history-timeline__content .era-content .left-area:before, .history-timeline__content .era-content .left-area:after {
    display: none;
  }
  .history-timeline__content .era-content__title {
    display: none;
  }
  .history-timeline__content .era-content dl {
    width: 100%;
    order: var(--timeline-mobile-order);
    margin-top: 0 !important;
    margin-bottom: 2.5em !important;
    justify-content: flex-start;
    --timeline-item-shift: -20px;
  }
  .history-timeline__content .era-content dl dt {
    top: 14px;
    left: calc(var(--timeline-mobile-rail-left) - 7px);
    right: auto;
  }
  .history-timeline__content .era-content dl dd {
    width: 100%;
    padding-left: calc(var(--timeline-mobile-rail-left) + 1.5em) !important;
    padding-right: 0 !important;
    text-align: left;
  }
  .history-timeline__content .era-content dl dd:before {
    top: 21px;
    left: var(--timeline-mobile-rail-left);
    right: auto;
    width: 42px;
    transform-origin: left center;
  }
  .history-timeline__content .era-content dl dd .year {
    font-size: 30px;
  }
  .history-timeline__content .era-content dl dd .year:before {
    display: block;
    margin-bottom: 12px;
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 0.12em;
  }
  .history-timeline__content .era-content dl dd .photo {
    margin: 24px 0 12px;
  }
  .history-timeline__content .era-content .left-area dl {
    --timeline-item-shift: -20px;
  }
  .history-timeline__content .era-content .left-area dl dt {
    left: 13px;
  }
  .history-timeline__content .era-content .left-area dl dd:before {
    left: var(--timeline-mobile-rail-left);
    right: auto;
    transform-origin: left center;
  }
  .history-timeline__content .era-content .left-area dl dd .year:before {
    color: #717171;
  }
  .history-timeline__content .era-content .right-area dl dt {
    left: 13px;
  }
  .history-timeline__content .era-content .right-area dl dd:before {
    left: 20px;
  }
  .history-timeline__content .era-content .right-area dl dd .year:before {
    color: #4600F7;
  }
  .history-timeline__end {
    padding: 4em 0;
  }
}
@media (max-width: 640px) {
  .sp-hidden {
    display: none;
  }
  .history-kv {
    margin-top: 4em;
    padding-bottom: 3em;
  }
  .history-kv:after {
    background-size: 540px auto;
  }
  .history-kv__a .a__loop img {
    height: 150px;
  }
  .history-kv .history-kv__copy {
    font-size: 16px;
    line-height: 2;
  }
  .history-outline .left-area h3 {
    font-size: 30px;
    letter-spacing: 0.1em;
  }
  .history-outline .left-area p {
    font-size: 13px;
    line-height: 2;
  }
  .history-outline .right-area ul li .title .num {
    font-size: 20px;
  }
  .history-outline .right-area ul li .title h4 {
    font-size: 20px;
  }
  .history-outline .right-area ul li .title .year {
    font-size: 14px;
  }
  .history-outline .right-area ul li .txt p {
    font-size: 12px;
    letter-spacing: 0.1em;
    line-height: 1.8;
  }
  .history-timeline__nav {
    top: 52px;
  }
  .history-timeline__nav ul {
    padding-top: 1em;
  }
  .history-timeline__nav ul li a {
    width: 100%;
  }
  .history-timeline__nav ul li a .num {
    top: 6px;
    left: 8px;
    font-size: 13px;
  }
  .history-timeline__nav ul li a h6 {
    font-size: 17px;
  }
  .history-timeline__nav ul li a .year {
    letter-spacing: 0;
    font-size: 9px;
  }
  .history-timeline__nav.is-stuck ul {
    padding-top: 0.5em;
  }
  .history-timeline__nav.is-stuck ul li a {
    height: 48px;
  }
  .history-timeline__nav.is-stuck ul li a .num {
    top: 6px;
    left: 8px;
    font-size: 13px;
  }
  .history-timeline__nav.is-stuck ul li a h6 {
    font-size: 13px;
  }
  .history-timeline__nav.is-stuck ul li a .year {
    letter-spacing: 0;
    font-size: 8px;
  }
  .history-timeline__content .era-title {
    padding: 2em 1.5em;
  }
  .history-timeline__content .era-title h5 {
    font-size: 24px;
  }
  .history-timeline__content .era-title .description {
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.8;
    text-align: left;
  }
  .history-timeline__content .era-title .year {
    margin-top: 8px;
    font-size: 13px;
  }
  .history-timeline__content .era-content:before, .history-timeline__content .era-content:after {
    left: 2px;
    width: 2px;
  }
  .history-timeline__content .era-content .left-area dl,
  .history-timeline__content .era-content .right-area dl {
    width: 94%;
    margin-bottom: 1em !important;
  }
  .history-timeline__content .era-content .left-area dl dt,
  .history-timeline__content .era-content .right-area dl dt {
    left: -3px;
  }
  .history-timeline__content .era-content .left-area dl dd,
  .history-timeline__content .era-content .right-area dl dd {
    padding-left: 2em !important;
  }
  .history-timeline__content .era-content .left-area dl dd:before,
  .history-timeline__content .era-content .right-area dl dd:before {
    left: 0;
    width: 30px;
  }
  .history-timeline__content .era-content .left-area dl dd h5,
  .history-timeline__content .era-content .right-area dl dd h5 {
    font-size: 14px;
    padding: 5px 12px;
  }
  .history-timeline__content .era-content .left-area dl dd h6,
  .history-timeline__content .era-content .right-area dl dd h6 {
    font-size: 15px;
    line-height: 1.4;
  }
  .history-timeline__content .era-content .left-area dl dd p,
  .history-timeline__content .era-content .right-area dl dd p {
    font-size: 12px;
    line-height: 1.5;
    letter-spacing: 0;
  }
  .history-timeline__content .era-content .left-area dl dd .timeline-list li,
  .history-timeline__content .era-content .right-area dl dd .timeline-list li {
    font-size: 12px;
    line-height: 1.5;
    letter-spacing: 0;
  }
  .history-timeline__content .era-content .left-area dl dd p.year,
  .history-timeline__content .era-content .right-area dl dd p.year {
    margin: 6px 0 4px;
    font-size: 20px;
  }
  .history-timeline__end {
    padding: 2em;
  }
  .history-timeline__end h6 {
    font-size: 24px;
    margin-bottom: 16px;
  }
  .history-timeline__end p {
    font-size: 12px;
    line-height: 1.8;
    text-align: left;
  }
}