/* 头部banner */
.aboutUs-banner-content {
  height: 640px;
  width: 100%;
  background: url("../image/us/us_banner.png?v=1.0") no-repeat center;
  background-size: cover;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.aboutUs-banner-content-tittle{
  height: 100%;
}

.aboutUs-banner-tittle {
  font-size: 80px;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
  text-shadow: 0px 2px 6px 0px #46606f;
  margin-top: 170px;
}

.aboutUs-banner-secTittle {
  font-size: 24px;
  font-family: Source Han Sans CN, Source Han Sans CN-Normal;
  font-weight: Normal;
  text-align: center;
  color: #ffffff;
  text-shadow: 0px 1px 3px 0px #21150d;
  margin-top: 54px;
  line-height: 48px;
}

.us-value {
  height: 755px;
  width: 100%;
  background-image: url('../image/us/val_bg.png');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.us-value h4 {
  font-size: 50px;
  text-align: center;
  color: #333333;
  line-height: 50px;
  padding: 68px 0 84px;
}

.us-list-content {
  width: 100%;
  height: 460px;
  position: relative;
}

.us-value-list {
  width: 100%;
  position: absolute;
  top: 50%;
  left: calc(50% + 7.5px);
  transform: translate(-50%, -50%);
}

.us-value-list li {
  width: calc(25% - 15px);
  height: 460px;
  position: relative;
  overflow: hidden;
  margin-right: 15px;
  background: transparent;
}

.us-value-list li .v-bg {
  width: 100%;
  height: 100%;
  transition: transform 0.5s;
}

.us-value-list li:hover .v-bg {
  transform: scale(1.5);
}

.us-value-list li:hover .v-bg-ico {
  transform: translateY(-10px);
}

.us-value-list li .v-bg-container {
  position: absolute;
  top: 99px;
  left: 0;
  width: 100%;
}

.us-value-list li .v-bg-ico {
  width: 124px;
  height: 111px;
  margin: 0 auto;
  transition: transform 0.5s;
}

.us-value-list li p {
  font-size: 30px;
  text-align: center;
  color: #ffffff;
  line-height: 30px;
  padding-top: 96px;
}

/* app下载 */
.wl-down-content {
  height: 600px;
  width: 100%;
  background-image: url('../image/index/down_bg_v2.png');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.wl-down {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}


.down-intro {
  width: 520px;
}

.down-mobile {
  max-height: 90%;
  max-width: 26.6rem;
  align-self: flex-end;
}

.down-intro-title {
  font-size: 50px;
  color: #ffffff;
  line-height: 60px;
}

.icon-list {
  padding-top: 0px;
}

.icon-list li {
  margin-top: 30px;
}

.download-qr-box {
  display: flex;
  margin-top: 50px;
}

.download-qr {
  flex: 1;
}

.download-qr-img {
  width: 209px;
  height: 209px;
}

.icon-list li img {
  width: 170px;
  height: 44px;
}

@media (max-width: 1200px)/*中等屏幕*/ {
  .aboutUs-banner-tittle{
    margin-top: 143px;
  }

  .us-value-list li {
    height: 363px;
  }

  .download-qr-img {
    width: 209px;
    height: 209px;
  }

  .us-value-list li p {
    padding-top: 56px;
  }
}

@media (max-width: 992px)/*平板*/ {
  .us-value {
    height: 1010px;
  }

  .us-list-content {
    height: 780px;
  }

  .us-value-list {
    left: calc(50% + 45px);
  }

  .us-value-list li {
    width: calc(50% - 90px);
    height: 355px;
    margin-right: 90px;
    margin-bottom: 35px;
  }

  .down-mobile {
    max-height: 90%;
    max-width: 23.6rem;
    align-self: flex-end;
  }

  .down-intro-title {
    font-size: 38px;
    color: #ffffff;
    line-height: 42px;
  }

  .icon-list li img {
    width: 120px;
    height: 31px;
  }
}

@media (max-width: 768px)/*手机*/ {
  .aboutUs-banner-content {
    height: 50vh;
  }

  .aboutUs-banner-tittle {
    font-size: 30px;
    line-height: 35px;
    text-shadow: #333 0.1em 0.1em 0.2em;
    margin-top: 8vh;
  }

  .aboutUs-banner-secTittle {
    font-size: 16px;
    margin-top: 30px;
    line-height: 20px;
    text-shadow: black 0.1em 0.1em 0.2em
  }

  .us-value {
    height: 557px;
  }

  .us-value h4 {
    font-size: 30px;
    line-height: 35px;
    padding: 34px 0 42px;
  }

  .us-list-content {
    height: 425px;
    overflow: hidden;
  }

  .us-value-list {
    left: calc(50% + 30px);
  }

  .us-value-list li {
    width: calc(50% - 50px);
    height: 189px;
    margin-right: 36px;
    margin-bottom: 22px;
  }

  .us-value-list li .v-bg-container {
    top: 27px;
  }

  .us-value-list li .v-bg-ico {
    width: 86px;
    height: 77px;
  }

  .us-value-list li p {
    padding-top: 26px;
    font-size: 24px;
  }

  .wl-down-content {
    height: 335px;
  }

  .down-intro-title {
    font-size: 18px;
    line-height: 22px;
  }

  .icon-list li {
    margin-top: 8px;
  }

  .icon-list li:last-child {
    margin-right: 0
  }

  .download-qr-box {
    margin-top: 30px;
  }

  .down-intro {
    width: 186px;
  }

  .icon-list li img {
    width: 68px;
    height: 17.5px;
  }

  .download-qr-img {
    width: 100px;
    height: 100px;
  }

  .down-mobile {
    max-height: 90%;
    max-width: 11.9rem;
    align-self: flex-end;
  }
}