@import "common.css";
.banner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 1200px;
  max-width: 1920px;
  width: 100%;
  height: 280px;
  overflow: hidden;
  background-image: url("../img/qudaohezuo_banner.png");
}
.banner .title {
  padding-top: 90px;
  font-size: 40px;
  font-weight: bold;
  color: #ffffff;
}
.banner .describe {
  padding-top: 40px;
  font-size: 29px;
  font-weight: 300;
  color: #ffffff;
}
.content_chunk {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}
.content_chunk .chunk_title .title {
  width: 600px;
}
.content_chunk .content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1200px;
}
.content_one {
  padding: 60px 0 80px 0;
}
.content_one .title {
  padding-bottom: 30px;
  font-size: 22px;
  font-weight: bold;
  color: #4062ec;
}
.content_one .describe {
  width: 241px;
  font-size: 16px;
  font-weight: 400;
  color: #999999;
}
.content_one .one,
.content_one .three,
.content_one .two,
.content_one .four {
  position: absolute;
}
.content_one .one,
.content_one .three {
  text-align: right;
}
.content_one .two,
.content_one .four {
  text-align: left;
}
.content_one .one {
  top: 100px;
  left: 55px;
  animation: one 1000ms;
  animation-direction: alternate;
  animation-iteration-count: infinite;
}
@keyframes one {
  0% {
    top: 90px;
  }
  100% {
    top: 110px;
  }
}
.content_one .two {
  top: 100px;
  right: 55px;
  animation: two 1000ms;
  animation-direction: alternate;
  animation-iteration-count: infinite;
}
@keyframes two {
  0% {
    top: 110px;
  }
  100% {
    top: 90px;
  }
}
.content_one .three {
  top: 398px;
  left: 55px;
  animation: three 1000ms;
  animation-direction: alternate;
  animation-iteration-count: infinite;
}
@keyframes three {
  0% {
    top: 418px;
  }
  100% {
    top: 388px;
  }
}
.content_one .four {
  top: 398px;
  right: 55px;
  animation: four 1000ms;
  animation-direction: alternate;
  animation-iteration-count: infinite;
}
@keyframes four {
  0% {
    top: 388px;
  }
  100% {
    top: 418px;
  }
}
.chunk_title_two .title {
  background-image: url("../img/TIANYINGKEJI_s.png");
}
.content_two {
  padding: 10px 0 60px 0;
}
.content_three {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 20px 0 80px 0;
}
.content_three .chunk_lists {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  width: 100%;
}
.content_three .chunk_lists .list {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 210px;
}
.content_three .chunk_lists .title {
  padding-top: 33px;
  padding-bottom: 22px;
  font-size: 16px;
  font-weight: 600;
  color: #000000;
}
.content_three .chunk_lists .describe {
  width: 226px;
  height: 40px;
  font-size: 14px;
  font-weight: 400;
  color: #999999;
  line-height: 25px;
}
.chunk_title_four .title {
  background-image: url("../img/TIANYINGKEJI_s.png");
}
.content_four {
  padding: 40px 0 80px 0;
}
.content_four img {
  margin-left: -100px;
}
.content_four .txtBox {
  margin-left: 90px;
}
.content_four .txtBox p {
  font-size: 20px;
  font-weight: 400;
  color: #333;
  line-height: 46px;
}
.content_four .txtBox p span {
  font-size: 16px;
  font-weight: 400;
  color: #999;
}
footer {
  margin: 0;
}