section.history{
  background: #4C4A4A;
  width: 100%;
  color: var(--colorWht);
  font-size: var(--font12);
}
section.history .inner{
  padding: 6rem 2rem;
}
#timeline{
  position: relative;
  gap: 4rem;
}
#timeline::before {
  content: '';
  display: block;
  width: 1px;
  height: 100%;
  background: var(--colorWht);
  position: absolute;
  left: 0;
  right: 0;
  top: 4rem;
  margin: 0 auto;
}
#timeline .block{
  width: 100%;
}
.sideF,.sideG{
  width: 42%;
  gap: 2rem;
  padding-top: 0.75rem;
}
.block.b .sideF, .block.b .sideG{
  padding-top: 1.5rem;
}
#sec02 .section-tiitle{
  font-size: var(--font20);
  margin-bottom: 1em;
}
.block.head{
  font-size: var(--font24);
  font-weight: 700;
}
.block.title{
  font-size: var(--font24);
  margin-bottom: 2rem;
  padding-top: 0;
}
.block.title .sideF{
  margin-right: 4rem;
}
.block.title .sideG{
  margin-left: 4rem;
}
.year{
  text-align: center;
  background: #4C4A4A;
  z-index: 1;
  padding: 0.5em;
  line-height: 1;
  font-size: var(--font16);
}
.block.b .year{
  font-size: var(--font24);
  font-weight: 700;
}
.year::before,.year::after{
  content: '';
  display: block;
  height: 1px;
  background: var(--colorWht);
  width: 2rem;
}
.year::before{
  margin-right: 0.5rem;
}
.year::after{
  margin-left: 0.5rem;
}
.year.singleR::before{
  opacity: 0;
}
.year.singleL::after{
  opacity: 0;
}
figure{
  width: 12rem;
}
figure.b{
  width: 15rem;
}
figcaption{
  font-size: 1rem;
  margin-top: 0.25em;
}
#timeline p{
  margin-bottom: 0.5em;
  line-height: 1.35;
  font-size: var(--font12);
}
#timeline p span{
  background: #FF6200;
  font-size: var(--font10);
  line-height: 1;
  vertical-align: baseline;
  padding: 0.1em 0.4em;
  border-radius: 0.3em;
  margin-left: 0.3em;
  white-space: nowrap;
}

@media (821px <= width){
  section.history .inner{
    padding: 9rem 6rem;
  }
  #timeline{
    width: 1280px;
  }
}
@media (820px >= width) {
  section.history .inner {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .sideF,
  .sideG {
    width: 33%;
  }

  figure {
    width: 90%;
  }

  figure.b {
    width: 110%;
  }

  .year {
    font-size: var(--font14);
  }

  .year::before,
  .year::after {
    width: 1rem;
  }

  #timeline p br {
    display: none;
  }

  #timeline p {
    font-size: var(--font11);
    line-height: 1.5;
  }

  .block.b .year {
    font-size: var(--font18);
  }

  .block.b .sideF,
  .block.b .sideG {
    padding-top: 1rem;
  }

  .block.title {
    font-size: var(--font20);
    margin-bottom: 0;
  }
}