.banner {
  position: relative;
  height: 0;
  padding-top: 18.75%;
  background-image: url(../images/culture-history-banner.jpg);
  background-position: center;
  background-size: 100% 100%;
}
.wrapper {
  background: #fff;
}
.history-title {
  text-align: center;
  margin-bottom: 20px;
}
.history-title .title-en {
  font-size: 36px;
  font-weight: 900;
  color: rgba(1, 89, 163, 0.05);
}
.history-title .title-cn {
  font-size: 32px;
  font-weight: 700;
  color: var(--theme);
}
.history-top {
  height: 84px;
}
.history-top .history-top-inner {
  display: flex;
  position: relative;
  height: 84px;
  padding: 0 20px;
}
.history-top .history-top-inner.fixed {
  position: fixed;
  width: 100%;
  top: 70px;
  left: 0;
  background: #fff;
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.1);
  z-index: 10;
}
.history-top .history-top-inner::before {
  content: "";
  width: 100%;
  height: 1px;
  background: #e1e5e8;
  position: absolute;
  left: 0;
  bottom: 26px;
}
.history-top .top-item {
  flex: 1;
  font-size: 16px;
  color: #999;
  cursor: pointer;
  padding-top: 20px;
  text-align: center;
  position: relative;
}
.history-top .top-item::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 1px solid #e1e5e8;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  left: calc(50% - 8px);
  bottom: 18px;
}
.history-top .top-item:hover {
  color: var(--theme);
}
.history-top .top-item:hover::before {
  border-color: var(--theme);
}
.history-top .top-item.active {
  color: var(--theme);
  font-weight: 700;
}
.history-top .top-item.active::before {
  border-color: var(--theme);
}
.history-block-wrap {
  position: relative;
}
.history-block-wrap::before {
  content: "";
  width: 2px;
  background: #80acd1;
  height: calc(100% - 40px);
  position: absolute;
  top: 20px;
  left: 221px;
}
.history-block {
  padding: 20px 0;
}
.history-block .block-title {
  display: flex;
  font-size: 24px;
  font-weight: 700;
  color: var(--theme);
}
.history-block .block-title .title-l {
  width: 200px;
  text-align: right;
  padding-right: 30px;
  padding-bottom: 20px;
  position: relative;
}
.history-block .block-title .title-l::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 3px solid var(--theme);
  border-radius: 50%;
  position: absolute;
  top: 8px;
  right: -12px;
  background: #fff;
}
.history-block .block-title .title-r {
  flex: 1;
  padding-left: 30px;
}
.history-block .block-item {
  display: flex;
  font-size: 16px;
  margin-bottom: 3px;
}
.history-block .block-item:last-child {
  margin-bottom: 0;
}
.history-block .block-item .item-l {
  width: 200px;
  text-align: right;
  padding: 10px 30px;
  background: rgba(1, 89, 163, 0.05);
  color: var(--theme);
  border-radius: 5px 0px 0px 5px;
  position: relative;
}
.history-block .block-item .item-l::before {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--theme);
  top: 18px;
  right: -6px;
}
.history-block .block-item .item-r {
  flex: 1;
  padding: 10px 30px;
  background: rgba(1, 89, 163, 0.02);
}
@media screen and (max-width: 768px) {
  .history-title,
  .history-top {
    display: none;
  }
  .history-block-wrap {
    padding: 0;
  }
  .history-block-wrap::before {
    left: 81px;
    top: 17px;
  }
  .history-block {
    padding: 0 10px;
    margin-bottom: 20px;
  }
  .history-block:last-child {
    margin-bottom: 0;
  }
  .history-block .block-title .title-l {
    font-size: 16px;
    width: 70px;
    font-weight: normal;
    padding: 0 10px 0 0;
  }
  .history-block .block-title .title-l::before {
    width: 4px;
    height: 4px;
    top: 7px;
    right: -7px;
  }
  .history-block .block-title .title-r {
    font-size: 16px;
    font-weight: normal;
    padding: 0 0 0 13px;
  }
  .history-block .block-item {
    margin-bottom: 0;
  }
  .history-block .block-item .item-l {
    font-size: 12px;
    width: 70px;
    padding: 10px 10px 10px 0;
    background: #fff;
  }
  .history-block .block-item .item-l::before {
    width: 6px;
    height: 6px;
    top: 15px;
    right: -5px;
  }
  .history-block .block-item .item-r {
    font-size: 12px;
    background: #fff;
    padding: 10px 0 10px 13px;
  }
  .container {
    padding-bottom: 40px;
  }
}