.qianhe-home-about {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}

.qianhe-home-about .container {
  width: 1400px;
  margin: 0 auto;
}

.qianhe-home-about .container,
.qianhe-home-abvideo {
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  align-items: center;
}

.qianhe-home-aboutfl {
  position: relative;
  width: 46%;
  height: 100%;
  overflow: hidden
}

.qianhe-home-aboutfl img {
  width: 100%;
  transition: 1s all;
  vertical-align: middle;
}

.qianhe-home-aboutfl:hover img {
  -webkit-transform: scale(1.03);
  -moz-transform: scale(1.03);
  -ms-transform: scale(1.03);
  transform: scale(1.03)
}

.qianhe-home-aboutfr p {
  font-size: 17px;
  line-height: 1.6;
}

.qianhe-home-abvideo {
  position: absolute;
  right: 0;
  bottom: 30px;
  width: 88%;
  padding: 15px 25px;
  background: rgba(0, 0, 0, 0.6);
  font-size: 0
}

.qianhe-home-abvideo p {
  display: inline-block;
  margin-top: 7px;
  font-size: 18px;
  color: #fff;
  letter-spacing: 0;
  vertical-align: top
}

.qianhe-home-abvideo span {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary);
  text-align: center;
  line-height: 46px;
  cursor: pointer;
  vertical-align: top;
  color: #fff;
}

.qianhe-home-abvideo span i {
  line-height: 46px;
}

.qianhe-home-aboutfl img.vclose {
  width: auto
}

.qianhe-home-aboutfr {
  width: 47.8%;
  margin-top: 44px
}

.qianhe-home-aboutfr .title {
  width: 100%;
  text-align: left
}

.qianhe-home-aboutfr .title h3 a {
  font-size: 36px;
  letter-spacing: 2px;
  color: #000009;
  font-weight: bold;
}

.qianhe-home-aboutfr .title h3 b {
  display: block;
  margin-bottom: 8px;
  font-weight: 100;
  color: var(--color-primary);
  font-size: 17px;

  letter-spacing: 0;
}

.qianhe-home-aboutfr .title p {
  margin-top: 20px;
}

.qianhe-home-aboutnum {
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}

.qianhe-home-aboutnum div {
  position: relative;
  width: 45%;
  padding: 20px;
  margin-top: 20px;
  border-bottom: 2px solid #dbdbdb
}

.qianhe-home-aboutnum div::after {
  content: ' ';
  position: absolute;
  z-index: 2;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px
}

@keyframes ad_width {
  from {
    width: 0
  }

  to {
    width: 100%
  }
}

.qianhe-home-aboutnum div:hover::after {
  animation: ad_width 0.5s linear forwards;
  background: var(--bg-color)
}

.qianhe-home-aboutnum span {
  display: block;
  font-size: 26px;
  color: #212121;
  font-family: var(--title-font-family);
}

.qianhe-home-aboutnum span b {
  margin-right: 10px;
}

.qianhe-home-aboutnum p {
  margin-top: 10px;
  color: #212121
}

.qianhe-home-aboutfr .main-href {
  margin-top: 60px;
  text-align: left
}

.qianhe-home-aboutfr .main-href a {
  display: inline-block;
  padding: 15px 65px;
  background: var(--color-primary);
  border-radius: var(--button-radius);
  color: #fff;
  font-size: 15px;
  letter-spacing: 1px;
}

.qianhe-home-aboutfr .main-href a:hover {
  background: none;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}

@media screen and (max-width: 1580px) {
  .qianhe-home-about .container {
    width: 82%;
  }

  .qianhe-home-aboutnum div {
    margin-top: 5px
  }

  .qianhe-home-abvideo {
    padding: 20px
  }

  .qianhe-home-abvideo p {
    font-size: 16px
  }

  .qianhe-home-aboutfr {
    margin-top: 0
  }

  .qianhe-home-aboutfr .title h3 {
    font-size: 34px;
  }
}

@media screen and (max-width: 1400px) {
  .qianhe-home-aboutfl {
    height: 100%
  }

  .qianhe-home-aboutfr .title h3 a {
    font-size: 32px;
  }

  .qianhe-home-abvideo p {
    width: 80%
  }

  .qianhe-home-about .main-href a {
    padding: 15px 50px;
    font-size: 14px;
  }
}

@media screen and (max-width: 1280px) {
  .qianhe-home-about {
    padding: 60px 0;
  }

  .qianhe-home-about .container,
  .qianhe-home-abvideo {
    display: block
  }

  .qianhe-home-aboutfl {
    float: left;
    margin-right: 40px
  }

  .qianhe-home-aboutfr {
    float: none;
    width: 100%
  }

  .qianhe-home-aboutfr .title {
    padding-top: 20px
  }

  .qianhe-home-aboutfr .title h3 {
    font-size: 32px;
  }

  .qianhe-home-aboutnum {
    width: 100%
  }
}

@media screen and (max-width: 960px) {
  .qianhe-home-about {
    padding: 40px 0;
  }

  .qianhe-home-about .container,
  .qianhe-home-abvideo {
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap
  }

  .qianhe-home-aboutfl {
    width: 100%;
    float: none;
    margin-right: 0
  }

  .qianhe-home-aboutfr {
    width: 100%;
    margin-top: 30px
  }

  .qianhe-home-aboutfr .title h3 a {
    font-size: 30px;
  }

  .qianhe-home-aboutfr .qianhe-title p {
    font-size: 15px;
    line-height: 24px;
  }

  .qianhe-home-aboutnum {
    padding-right: 0
  }

  .qianhe-home-about .main-href a {
    padding: 15px 40px;
    font-size: 13px;
  }
}

@media screen and (max-width: 480px) {
  .qianhe-home-abvideo {
    bottom: 0;
  }

  .qianhe-home-abvideo a p  {
    width: 76%;
  }
}