.SY {
  /* width: 60%;
  margin-left: 20%; */
  display: flex;
  justify-content: space-between;
  margin-top: 15px;
  align-items: center;
}
.bc {
  height: 100vh;
  width: 100%;
  /* background-image: url("../img/企业微信截图_16596027991250.png"); */
  background-image: url('../img/首页\(2\).jpg');
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}
.SY_modie_img{
  display: none;
}
.SY_bottom_flex{
  /* width: 60%;
  margin-left: 20%; */
  display: flex;
  justify-content: space-between;
  margin-top: 15px;
  align-items: center;
}
.SY_bottom {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 140px;
  padding-top: 0.6rem;
  background-color: #323232;
  overflow: hidden;
}
.SY_Child_span {
  position: relative;
  display: block;
  float: left;
  font-size: 1.3rem;
  text-align: center;
  width: 20%;
  cursor: pointer;
  text-shadow: 0 0 1px #222;
  color: white;
}
.SY_Child_span  a{
  color: white;
}
/* about */
.about_bc {
  width: 100%;
  background-image: url("../img/关于蝌蚪.jpg");
  background-size: 100% 100%;
  background-repeat: repeat-x;
  height: 300px;
  overflow: hidden;
}
.about_p_ {
  margin-top: 1.3rem;
  line-height: 2.3rem;
  text-indent: 2.5rem;
  font-size: 1.3rem;
  text-align: justify;
  color: #666;
}
.about_connet_txt_bottom_1{
  font-size: 1.5rem;
  color: white;
  display: inline-block;
  text-align: center;
}
.top_txt {
  font-size: 3rem;
  text-align: center;
  color: #000;
  font-weight: 550;
  margin: 5rem 0 3rem;
}
.about_w {
  width: 50%;
  margin-left: 25%;
}
.about_p1 {
  margin-top: 1.6rem;
  font-size: 1.6rem;
  color: #333;
  text-align: center;
}
.about_p2 {
  margin-top: 1rem;
  font-size: 1.3rem;
  color: #999;
  text-align: center;
}
.about_p3 {
  font-size: 1.5rem;
  text-align: justify;
  text-indent: 3rem;
  line-height: 2.6rem;
  color: #666;
}
.about_p4{
  font-size: 2rem;
  margin-bottom: 2rem;
}
.about_img2{
  max-width: 18rem;
}
.about_connct_txt{
  font-size: 3rem;
  color: white;
}
.about_xiamen{
  /* height: 15rem; */
  margin-bottom: 5rem  ;
}
.about_xiamen_p1{
  font-size: 1.5rem;
  color: #333;
  margin-top: 4rem;
}  
.about_xiamen_p2{
  margin-top: 1rem;
  text-align: justify;
  font-size: 1.2rem;
  line-height: 1.6rem;
  color: #666;
}
.about_connet_txt_bottom_2{
  font-size: 1.5rem;
  color: #fff;
}
.about_connct{
  background-image: url('https://xlstatic.xialv.com/official-static/img/banner3.jpg');
  margin-top: 7rem;
  background-size: 100% contain;
  background-repeat: no-repeat;
}
.about_xialv_top{
  margin-top: 7rem
}
.about_connet_p{
  display: inline-block;
}
.abour_flex{
  display: flex;
  text-align: center;
  justify-content: space-between;
}
.about_flex_qiye {
  flex-basis: 17%;
}
.wrap {
  width: 100%;

  height: 35rem;

  margin: 0 auto;

  position: relative;

  background-color: orange;

  background-position: center center;

  background-size: cover;
}
.arraw {
  width: 30px;

  height: 30px;

  background-color: rgba(0, 0, 0, 0.7);

  color: #fff;

  text-align: center;

  position: absolute;

  line-height: 30px;

  top: 160px;

  border-radius: 50%;
}
/* 核心服务 */
.core_bc {
  width: 100%;
  background-image: url("../img/核心服务.jpg");
  background-size: 100% 100%;
  background-repeat: repeat-x;
  height: 300px;
  overflow: hidden;
}
.core_flex_xialv{
}
.core_flex_xialv_chilrd{
  box-shadow: 1px 1px 18px #ddd;
  flex-basis: 25%;
  padding: 2.5%;
}
.core_p1{
  font-size: 2.5rem;
  color: #5f6c72;
}
.core_p2{
  font-size: 1.5rem;
  line-height:  2.1rem;
  color: #888;
}
.core_product{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  text-align: center;
}
.core_product div {
  flex-basis: 16%;
  margin-top: 2rem;
}
.core_flow{
  width: 100%;
  /* height: 1070px; */
  margin-top: 90px;
  padding-bottom: 2rem;
  background: url(data:image/png;base64,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);
  overflow: hidden;
}
.core_cooperation{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.core_cooperation div{
  flex-basis: 13%;
  margin-top: 2rem;
}
.margin_bottom{
  margin-bottom:5rem;
}
/* 免责声明 */
.exoneration_box{
  box-shadow: 1px 1px 1.2rem #ddd;
  margin-bottom: 5rem;
  margin-top: 2rem;
}
.exoneration_p1{
  padding: 2px 0;
    font-size: 22px;
    color: #666;
    text-indent: 44px;
    text-align: justify;
    line-height: 40px;
}
.exoneration_box_padding{
  padding: 3rem 6rem 5rem;

}
.exoneration_p2{
  font-size: 1.7rem;
  margin: 3.3rem 0 1.3rem;
  color: #000;
}
@media screen and (min-width: 1600px) {
  html {
    font-size: 15px;
  }
  .SY_w {
    width: 70%;
    margin-left: 15%;
  }
  /* .SY_imgTop{
    width: 15rem;
    height: auto;
    line-height: 80px;
  } */
  /* .SY_img2{
    width: 18rem;
  } */
}
/* background-size: 100% auto; */
@media screen and (min-width: 2299px) {
  html {
    font-size: 18px;
  }
  .SY_w {
    width: 80%;
    margin-left: 10%;
  }
  .about_w {
    width: 60%;
    margin-left: 20%;
  }
  .core_bc {
    width: 100%;
    background-image: url("	../img/核心服务.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
    height: 600px;
    overflow: hidden;
  }
  .about_bc {
    width: 100%;
    background-image: url("../img/关于蝌蚪.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
    height: 600px;
    overflow: hidden;
  }
  .bc {
    height: 100vh;
    width: 100%;
  background-image: url('../img/首页\(2\).jpg');

  /* background-image: url("../img/企业微信截图_16596027991250.png"); */
    /* background-image: url("	https://xlstatic.xialv.com/official-static/img/banner.jpg"); */
    background-size: 100%;
    background-repeat: no-repeat;
    overflow: hidden;
  }
}
@media screen and (min-width: 1599px) and (max-width: 2299px)  {
  html {
    font-size: 15px;
  }
  .SY_w {
    width: 80%;
    margin-left: 10%;
  }
  .about_w {
    width: 60%;
    margin-left: 20%;
  }
}
@media screen and (min-width: 1200px) and (max-width: 1599px) {
  html {
    font-size: 13px;
  }
  .SY_w {
    width: 80%;
    margin-left: 10%;
  }
  .about_w {
    width: 60%;
    margin-left: 20%;
  }
}
@media screen and (min-width: 900px) and (max-width:1199px){
  html {
    font-size: 11px;
  }
  .SY_w {
    width: 90%;
    margin-left: 5%;
  }
  .about_w {
    width: 70%;
    margin-left: 15%;
  }
}
@media screen and (min-width: 769px) and (max-width:899px){
  html {
    font-size: 10px;
  }
  .SY_w {
    width: 95%;
    margin-left: 2.5%;
  }
  .about_w {
    width: 80%;
    margin-left: 10%;
  }
}
.SY_imgTop{
  width: 15rem;
  height: auto;
  line-height: 80px;
}
.SY_img2{
  width: 18rem;
}
.SY_img4{
  /* width: 4.5rem;
  height: 4rem;
  text-align: center; */
}
.about_img1{
  max-width: 8rem;
}
.core_activity{
	width: 100%;
	background-image: url("../img/线下.jpg");
	background-size: 100% 100%;
	background-repeat: repeat-x;
	height: 300px;
	overflow: hidden;
}