.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  column-gap: 50px;
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-12 {
  grid-template-columns: repeat(12, 1fr);
  column-gap: 40px;
}
.colspan-2 {
  grid-column: span 2;
}
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  text-align: center;
}
.flex-center img {
  max-width: 100%;
  height: auto;
  width: auto;
}
.title-gray {
  color: #000;
  background: #C1C1C0;
  font-size: 14px;
  border-radius: 4px;
  min-height: 56px;
  text-align: center;
  line-height: 1.3;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
}
.title-primary {
  color: #000;
  background: #F9CCBD;
  font-size: 14px;
  border-radius: 4px;
  min-height: 56px;
  text-align: center;
  line-height: 1.3;
  font-weight: bold;
}
.p-10 {
  padding: 10px;
}
.title-grid {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.history-item {
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.history-item-last-item {
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  overflow: hidden;
}
.history-item-year {
  width: 65px;
  text-align: center;
  font-weight: medium;
  font-size: 14px;
  color: #000;
  background-color: #FFF4ED;
  display: flex;
  justify-content: center;
  padding: 10px 0;
  align-items: center;
  line-height: 18px;
}
.history-item-content {
  flex: 1;
  padding: 10px;
  background: #FFFAF7;
  border-radius: 4px;
  color: #000;
  font-size: 14px;
  padding: 10px;
  min-height: 56px;
  display: flex;
  align-items: center;
  line-height: 18px;
}
.arrow-content {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 114px;
}

.history-column {
  display: flex;
  flex-direction: column;
  position: relative;
  background: #FFFAF7;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  overflow: hidden;
}

.history-column .history-item,
.history-column .title-gray {
  position: relative;
}

.history-column::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 65px;
  height: 100%;
  background-color: #FFF4ED;
}

.column-arrow {
  height: 161px;
}

.col-t-66-b-86 {
  padding-top: 66px;
  padding-bottom: 86px;
}

.col-t-66-b-56 {
  padding-top: 66px;
  padding-bottom: 56px;
}

@media screen and (max-width: 1200px) {
  .grid {
    column-gap: 30px;
  }  
}

@media screen and (max-width: 767px) {
  .grid {
    column-gap: 2px;
  }  
}
@media screen and (max-width: 550px) {
  .col-t-66-b-56 {
    padding-top: 48px;
  }
}

@media screen and (max-width: 480px) {
  .title-gray,
  .title-primary,
  .history-item-year,
  .history-item-content {
    font-size: 12px;
  }  
  .title-gray {
    padding: 10px;;
  }
  .flex-center img {
    width: 90px;
  }
  .title-primary img {
    width: 200px !important;
  }
  .history-item-year,
  .history-column::before {
    width: 35px;
  }
  .column-arrow {
    height: 100px;
  }
  .col-t-66-b-86 {
    padding-top: 20px;
    padding-bottom: 10px;
  }
  .col-t-66-b-56 {
    padding-top: 66px;
  }
}

@media screen and (max-width: 424px) {
  .col-t-66-b-56 {
    padding-top: 48px;
  }
}