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@media (min-width: 768px) and (min-width: 2390px) {
  html {
    font-size: 124.47916667px;
  }
}
@media (min-width: 768px) and (min-width: 2400px) {
  html {
    font-size: 125px;
  }
}
@media (min-width: 768px) and (min-width: 2500px) {
  html {
    font-size: 130.20833333px;
  }
}
@media (min-width: 768px) and (min-width: 2600px) {
  html {
    font-size: 135.41666667px;
  }
}
@media (min-width: 768px) and (min-width: 2700px) {
  html {
    font-size: 140.625px;
  }
}
@media (min-width: 768px) and (min-width: 2800px) {
  html {
    font-size: 145.83333333px;
  }
}
@media (min-width: 768px) and (min-width: 2900px) {
  html {
    font-size: 151.04166667px;
  }
}
@media (min-width: 768px) and (min-width: 3000px) {
  html {
    font-size: 156.25px;
  }
}
@media (min-width: 768px) and (min-width: 3100px) {
  html {
    font-size: 161.45833333px;
  }
}
@media (min-width: 768px) and (min-width: 3200px) {
  html {
    font-size: 166.66666667px;
  }
}
@media (min-width: 768px) and (min-width: 3300px) {
  html {
    font-size: 171.875px;
  }
}
@media (min-width: 768px) and (min-width: 3400px) {
  html {
    font-size: 177.08333333px;
  }
}
@media (min-width: 768px) and (min-width: 3500px) {
  html {
    font-size: 182.29166667px;
  }
}
@media (min-width: 768px) and (min-width: 3600px) {
  html {
    font-size: 187.5px;
  }
}
@media (min-width: 768px) and (min-width: 3700px) {
  html {
    font-size: 192.70833333px;
  }
}
@media (min-width: 768px) and (min-width: 3800px) {
  html {
    font-size: 197.91666667px;
  }
}
@media (min-width: 768px) and (min-width: 3900px) {
  html {
    font-size: 203.125px;
  }
}
@media (min-width: 768px) and (min-width: 4000px) {
  html {
    font-size: 208.33333333px;
  }
}
/* pc */
@media (min-width: 768px) {
  /* banner */
  .banner {
    width: 100%;
    height: 100%;
    position: relative;
  }
  .banner .tupainzhanshi {
    width: 100%;
    height: 10rem;
  }
  .banner .tupainzhanshi img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .banner .wenanzhjanshi {
    width: 55%;
    position: absolute;
    top: 4.3rem;
    left: 5.8%;
    z-index: 2;
  }
  .banner .wenanzhjanshi p {
    font-weight: 400;
    font-size: 0.3rem;
    color: #fff;
    margin-bottom: 5%;
  }
  .banner .wenanzhjanshi h1 {
    color: #fff;
    line-height: 1.3;
    font-weight:bold;
    font-size: 0.64rem;
  } 
  /* history */
  .history {
    width: 100%;
    height: 11.8rem;
    padding: 1.8rem 0 1.1rem;
    position: relative;
    overflow: hidden;
  }
  .history .beijingtupian {
    position: absolute;
    bottom: 0;
    pointer-events: none;
    /* ★ 事件透传到底层 */
    z-index: 3;
    width: 100%;
    height: 5.26rem;
  }
  .history .beijingtupian img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    -webkit-user-drag: none;
    user-select: none;
    /* 防止被拖起影子 */
    pointer-events: none;
    /* 再保险 */
  }
  .history .w-1740 {
    width: 15rem;
    margin: 0 auto;
  }
  .history .w-1740 .sajdoaijw {
    padding-bottom: 0.65rem;
    display: flex;
    justify-content: space-between;
    position: relative;
  }
  .history .w-1740 .sajdoaijw h1 {
    width: 50%;
    font-weight: 600;
    font-size: 0.64rem;
    color: #2e2e2e;
    line-height: 0.8rem;
    
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh {
    width: 2rem;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-next {
    position: absolute;
    top: 15%;
    border: 0.02rem solid #2e2e2e;
    border-radius: 1rem;
    width: 0.9rem;
    height: 0.5rem;
    margin-top: 0;
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2e2e2e;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-next:after {
    font-size: 0.22rem;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-prev {
    position: absolute;
    top: 15%;
    border: 0.02rem solid #2e2e2e;
    border-radius: 1rem;
    width: 0.9rem;
    height: 0.5rem;
    margin-top: 0;
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2e2e2e;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-prev:after {
    font-size: 0.22rem;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-prev {
    left: auto;
    right: 7%;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-next {
    left: auto;
    right: 0;
  }
  .history .w-1740 .sajdoaijw .sjaiosjzyqh .swiper-button-disabled {
    cursor: not-allowed;
    color: #2e2e2e;
  }
  .history .w-1740 .timeline {
    height: 7rem;
  }
  .history .w-1740 .timeline .myTimeline {
    height: 7rem;
    z-index: 0;
    touch-action: pan-y;
    /* 横向交给 Swiper，纵向允许滚动 */
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide {
    zoom: 1;
    padding: 0.1rem 0.3rem 0.25rem 0.55rem;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-drag: none;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide .event {
    margin-bottom: 0.4rem;
    width:4rem !important;
    height: 1.55rem;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide .event .date {
    font-size: 0.32rem;
    color: #000;
    margin-bottom: 0.2rem;
    margin-left: 0.15rem;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide .event .desc {
    font-size: 0.18rem;
    line-height: 1.6;
    color: #000;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide .event .desc *{
    font-size: 0.18rem !important;
    line-height: 1.5 !important;
    color: #000 !important;
    position: relative !important;
    padding-left: 0.15rem !important;
    font-family: Arial, Helvetica, sans-serif !important;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide .event .desc *::after {
    position: absolute;
    left: 0;
    top: 0.1rem;
    content: '';
    width: 0.06rem;
    height: 0.06rem;
    border-radius: 100%;
    background-color: #ed0d1e;
  }
  .history .w-1740 .timeline .myTimeline .swiper-slide::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0.02rem;
    height: 8rem;
    background: #000000;
  }
}