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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 {
    position: relative;
    height: 100vh;
  }
  .banner .con {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
  }
  .banner .con .mySwiper {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: all 0.5s;
    background-color: #cbd4e2;
    overflow: hidden;
    height: 100vh;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide {
    width: 100% !important;
    position: relative;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .tupiandde {
    width: 100%;
    height: 100vh;
    overflow: hidden;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .tupiandde img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1);
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 {
    position: absolute;
    top: 2.95rem;
    left: 11%;
    width: 15.2rem;
    margin: 0 auto;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 h3 {
    width: 100%;
    font-size: 0.4rem;
    line-height: 1.65;
    color: #fff;
    margin-bottom: 0.5rem;
    text-align: center;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 .divjij .mores {
    transition: all 0.5s;
    background-color: #1a71b7;
    width: 1.8rem;
    height: 0.52rem;
    margin: 0 auto;
    border-radius: 1rem;
    display: flex;
    justify-content: center;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 .divjij .mores .p {
    transition: all 0.5s;
    margin: 0.09rem auto 0;
    color: #fff;
    line-height: 2.1;
    font-size: 0.16rem;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 .divjij .mores:hover {
    background-color: #004cbe;
  }
  .banner .con .mySwiper .swiper-wrapper .swiper-slide .w-1517 .divjij .mores:hover .p {
    padding: 0 2%;
  }
  /* Project Background */
  .project {
    width: 100%;
    height: 100%;
    padding: 0.9rem 0;
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
  }
  .project .w-1520 {
    width: 15.2rem;
    margin: 0 auto;
  }
  .project .w-1520 .biaotizhuansh {
    margin-bottom: 1rem;
  }
  .project .w-1520 .biaotizhuansh h3 {
    font-size: 0.4rem;
    color: #015aaa;
  }
  .project .w-1520 .zuotuyouzi {
    display: flex;
    justify-content: space-between;
    /* 滚动条轨道 */
    /* 滚动条滑块 */
    /* 滑块悬停 */
  }
  .project .w-1520 .zuotuyouzi .imghsuiaonc {
    width: 6.5rem;
    height: 4rem;
    margin-right: 1rem;
  }
  .project .w-1520 .zuotuyouzi .imghsuiaonc img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .project .w-1520 .zuotuyouzi .contenrtjri {
    width: 7.6rem;
    padding-right: 0.25rem;
    overflow-y: auto;
    height: 4rem;
  }
  .project .w-1520 .zuotuyouzi .contenrtjri p {
    font-size: 0.18rem !important;
    line-height: 1.75 !important;
    color: #000 !important;
    font-family: '微软雅黑' !important;
    margin-bottom: 0.2rem;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    -ms-hyphens: auto;
    overflow-wrap: break-word;
    word-break: normal;
  }
  .project .w-1520 .zuotuyouzi .contenrtjri span {
    display: block;
    font-size: 0.18rem !important;
    line-height: 1.75 !important;
    color: #000 !important;
    font-family: '微软雅黑' !important;
    margin-bottom: 0.2rem;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    -ms-hyphens: auto;
    overflow-wrap: break-word;
    word-break: normal;
  }
  .project .w-1520 .zuotuyouzi .contenrtjri::-webkit-scrollbar {
    width: 0.05rem;
    /* 滚动条宽度 */
    height: 0.05rem;
    /* 滚动条高度 */
  }
  .project .w-1520 .zuotuyouzi .contenrtjri::-webkit-scrollbar-track {
    background: #e9e9e9;
    /* 轨道颜色 */
  }
  .project .w-1520 .zuotuyouzi .contenrtjri::-webkit-scrollbar-thumb {
    background: #1a71b7;
    /* 滑块颜色 */
    border-radius: 0.15rem;
    /* 滑块圆角 */
  }
  .project .w-1520 .zuotuyouzi .contenrtjri::-webkit-scrollbar-thumb:hover {
    background: #004cbe;
    /* 滑块悬停颜色 */
  }
  /* Development Course */
  .development {
    width: 100%;
    height: 26rem;
    padding: 0.9rem 0;
    background-position: bottom;
    background-repeat: no-repeat;
    background-size: cover;
    overflow: hidden;
  }
  .development .w-1520 {
    width: 15.2rem;
    margin: 0 auto;
    position: relative;
  }
  .development .w-1520 .biaotizhuansh {
    margin-bottom: 2.2rem;
    display: flex;
    justify-content: space-between;
    border-bottom: 0.02rem solid #fff;
    padding-bottom: 0.5rem;
  }
  .development .w-1520 .biaotizhuansh h3 {
    font-size: 0.4rem;
    color: #fff;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri {
    padding-top: 0.12rem;
    display: flex;
    justify-content: space-between;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri p {
    font-size: 0.22rem;
    color: #fff;
    margin-right: 0.3rem;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan {
    width: 0.9rem;
    position: relative;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-next:after {
    content: '';
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-prev:after {
    content: '';
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-prev .icon {
    display: block;
    width: 0.15rem;
    height: 0.15rem;
    fill: #fff;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-next .icon {
    display: block;
    width: 0.15rem;
    height: 0.15rem;
    fill: #fff;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-next,
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-prev {
    position: absolute;
    top: 0;
    width: 0.3rem;
    height: 0.3rem;
    margin-top: 0;
    color: #fff;
    border: 0.01rem solid #fff;
    border-radius: 1rem;
    transition: all 0.5s;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-next:hover {
    background-color: #fff;
    transition: all 0.5s;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-next:hover .icon {
    fill: #015aaa;
    transition: all 0.5s;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-prev:hover {
    background-color: #fff;
    transition: all 0.5s;
  }
  .development .w-1520 .biaotizhuansh .nainfenjri .zuoyouqhihqiehuan .swiper-button-prev:hover .icon {
    fill: #015aaa;
    transition: all 0.5s;
  }
  .development .w-1520 .zuoyouqiehuanjieghou {
    position: absolute;
    height: 18rem;
    top: 2.8rem;
    left: 50%;
  }
  .development .w-1520 .zuoyouqiehuanjieghou .bordersdsw {
    position: absolute;
    top: -0.2rem;
    left: -0.09rem;
    width: 0.2rem;
    height: 0.2rem;
    margin: 0 auto;
  }
  .development .w-1520 .zuoyouqiehuanjieghou .bordersdsw img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .development .w-1520 .zuoyouqiehuanjieghou .zhongains {
   position: relative;
    width: 0.03rem;                 /* 轨道宽 */
    min-height: 100%;
    background: #e9eef33e;        /* 轨道底色 */
    overflow: visible;
  }

  /* 实际进度条 */
.development .w-1520 .zuoyouqiehuanjieghou .zhongains #bar{
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  height: 0;                  /* JS 动态设置 */
    background: linear-gradient(to bottom, #0364b3, #5797ca, #fff);
  border-radius: inherit;
  will-change: height, transform;
  transition: height .15s linear; /* 微平滑 */
}


  .development .w-1520 .zuoyouqiehuanjieghou i {
    animation: arrow-bounce 2.2s infinite;
    position: absolute;
    display: block;
    width: 0.5rem;
    margin: 0 auto;
  }
  .development .w-1520 .zuoyouqiehuanjieghou i .icon {
    width: 0.5rem;
    height: 0.25rem;
    fill: #fff;
  }
  .development .w-1520 .zuoyoujiegou {
    position: absolute;
    width: 100%;
    left: -2%;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper {
    position: relative;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper {
    display: flex;
    flex-wrap: wrap;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide {
    position: relative;
    margin-bottom: 1.2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide {
    width: 50% !important;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item {
    position: absolute;
    top: 0.2rem;
    left: 54%;
    width: 3.5rem;
    color: #fff;
    /* 滚动条轨道 */
    /* 滚动条滑块 */
    /* 滑块悬停 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .zhuyoiuzhuans {
    position: relative;
    display: flex;
    justify-content: right;
    margin-bottom: 0.2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .zhuyoiuzhuans .year {
    font-size: 0.3rem;
    color: #fff;
    margin-right: 0.1rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .zhuyoiuzhuans i {
    display: block;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .zhuyoiuzhuans i .icon {
    display: block;
    width: 0.2rem;
    height: 0.42rem;
    fill: #fff;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .zhuyoiuzhuans::after {
    position: absolute;
    left: 107%;
    top: 0.06rem;
    content: '';
    width: 0.12rem;
    height: 0.12rem;
    background-color: #1a71b7;
    border-radius: 2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso {
    font-size: 0.13rem;
    line-height: 1.7;
    text-align: right;
    height: 0.65rem;
    overflow-y: auto;
    padding-left: 2%;
    direction: rtl;
    overscroll-behavior: auto;         /* 千万不要是 contain/none */
    -webkit-overflow-scrolling: touch; /* iOS 惯性滚动 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso p {
    font-size: 0.13rem;
    line-height: 1.7;
    text-align: right;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso::-webkit-scrollbar {
    width: 0.05rem;
    /* 滚动条宽度 */
    height: 0.05rem;
    /* 滚动条高度 */
    border-radius: 0.15rem;
    /* 滑块圆角 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso::-webkit-scrollbar-track {
    background: #e9e9e9;
    /* 轨道颜色 */
    border-radius: 0.15rem;
    /* 滑块圆角 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso::-webkit-scrollbar-thumb {
    background: #1a71b7;
    /* 滑块颜色 */
    border-radius: 0.15rem;
    /* 滑块圆角 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .scjiso::-webkit-scrollbar-thumb:hover {
    background: #004cbe;
    /* 滑块悬停颜色 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .peituzhuans {
    width: 1.88rem;
    height: 1.2rem;
    position: absolute;
    top: 0.1rem;
    left: -3rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide .item .peituzhuans img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) {
    width: 50% !important;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item {
    position: relative;
    top: 1rem;
    left: 12%;
    width: 3.5rem;
    color: #fff;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .zhuyoiuzhuans {
    position: relative;
    display: flex;
    justify-content: left;
    margin-bottom: 0.2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .zhuyoiuzhuans .year {
    font-size: 0.3rem;
    color: #fff;
    margin-right: 0.1rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .zhuyoiuzhuans i {
    display: block;
    position: absolute;
    left: -0.3rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .zhuyoiuzhuans i .icon {
    display: block;
    width: 0.2rem;
    height: 0.42rem;
    fill: #fff;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .zhuyoiuzhuans::after {
    position: absolute;
    left: -18.5%;
    top: 0.06rem;
    content: '';
    width: 0.12rem;
    height: 0.12rem;
    background-color: #1a71b7;
    border-radius: 2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .scjiso {
    font-size: 0.13rem;
    line-height: 1.7;
    text-align: left;
    height: 0.65rem;
    overflow-y: auto;
    padding-right: 1%;
    margin-left: -8%;
    width: 91%;
    direction: ltr;
    padding-right: 2%;
    overscroll-behavior: auto;         /* 千万不要是 contain/none */
    -webkit-overflow-scrolling: touch; /* iOS 惯性滚动 */
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .scjiso p {
    font-size: 0.13rem;
    line-height: 1.7;
    text-align: left;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .peituzhuans {
    width: 1.88rem;
    height: 1.2rem;
    position: absolute;
    top: 0.1rem;
    left: 4.2rem;
  }
  .development .w-1520 .zuoyoujiegou .timeline-swiper .swiper-wrapper .swiper-slide:nth-child(even) .item .peituzhuans img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  @keyframes arrow-bounce {
    0%,
    100% {
      transform: translate(-50%, -50%);
    }
    50% {
      transform: translate(-50%, -60%);
      /* 或者其他百分比使箭头向上移动 */
    }
  }
}