.header_box .pc_header_box .header_area .menu_list li:nth-child(4) a{
	color: #2d4ecb !important;
  font-weight: bold;
}
.header_box .pc_header_box .header_area .menu_list li:nth-child(4)::after{
  background-color: #2d4ecb;
}
.open_area .banner{
  width: 100%;
	height: 610px;
  display:flex;
  align-items: center;
  flex-direction: column;
  justify-content:center;
  background-image: url("../img/open-banner.jpg");
  background-repeat: no-repeat;
  background-size: auto auto;
  background-position: center;
  padding-top: 20px;
}
.open_area .banner .title{
  font-size: 72px;
	font-weight: bold;
	color: #ffffff;
}
.open_area .banner .subhead{
  font-size: 42px;
	letter-spacing: 3px;
	color: #ffffff;
  margin-top:40px;
}
.open_area .banner .btn{
  width: 191px;
	height: 46px;
	background-color: #ffce24;
	border-radius: 23px;
  text-align: center;
  line-height:46px;
  font-size: 20px;
	color: #333333;
  margin-top:70px;
}
.open_area .scheme_area{
  width: 100%;
  padding-top: 100px;
  box-sizing: border-box;
}
.open_area .scheme_list{
  width: 1200px;
  margin: 60px auto 0;
  display:flex;
  flex-wrap: wrap;
}
.open_area .scheme_list li{
  width: 580px;
  height:460px;
  margin-right: 25px;
}
.open_area .scheme_list li:nth-child(2n){
  margin: 0;
}
.open_area .scheme_list li .img_box{
  width:100%;
  height: 329px;
  position:relative;
}
.open_area .scheme_list li .img_box .bg,.open_area .scheme_list li .img_box .img{
  width:100%;
  height: 100%;
  position:absolute;
  left: 0;
  top: 0;
  z-index: 1;
  transition:all .3s;
  background-color: #5372e7;
}
.open_area .scheme_list li .img_box .img{
  z-index: 2;
  background:none;
}
.open_area .scheme_list li .img_box:hover .img{
  left: -10px;
  top: -10px;
}
.open_area .scheme_list li .title{
  font-size: 24px;
	font-weight: bold;
	letter-spacing: 2px;
	color: #333333;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}
.open_area .scheme_list li .desc{
  font-size: 18px;
	color: #666666;
  width: 100%;
  text-align: center;
  margin-top: 10px;
}
.open_area .kernel_area{
  width: 100%;
  padding: 100px 0;
  background-image: url("../img/kernel-bg.png");
  background-repeat: no-repeat;
  background-size: 100% 100%;
  box-sizing: border-box;
}
.open_area .kernel_list{
  width: 100%;
  margin-top: 50px;
  display:flex;
  align-items: center;
  justify-content:center;
}
.open_area .kernel_list li{
  width: 316px;
	height: 334px;
  position:relative;
	background-color: #ffce24;
  margin-left: 80px;
}
.open_area .kernel_list li:first-child{
  margin-left: 0;
}
.open_area .kernel_list li .content_item{
  width:100%;
  height: 100%;
  position:absolute;
  left: 0;
  top: 0;
  z-index: 2;
  background-color: #ffffff;
  transition: all .3s;
  display:flex;
  flex-direction: column;
  align-items: center;
  justify-content:center;
}
.open_area .kernel_list li:hover .content_item{
  top: -10px;
}
.open_area .kernel_list li .content_item .icon{
  width: 150px;
  height:150px;
}
.open_area .kernel_list li .content_item .title{
  font-size: 20px;
	font-weight: bold;
	color: #333333;
  margin-top:20px;
}
.open_area .kernel_list li .content_item .desc{
  font-size: 16px;
	color: #666666;
  margin-top:20px;
}
.open_area .register_introduce_area{
  width: 100%;
	height: 547px;
	background-color: #f3f5fd;
  padding-top: 100px;
  box-sizing: border-box;
}
.open_area .register_introduce_area .introduce_content{
  width: 1130px;
	height: 231px;
  margin: 60px auto 0;
  display:flex;
  align-items: flex-start;
}
.open_area .register_introduce_area .introduce_content .content_item{
  width: 134px;
  height: 100%;
  display:flex;
  flex-direction: column;
  align-items: center;
}
.open_area .register_introduce_area .introduce_content .content_item .icon{
  width: 134px;
	height: 134px;
}
.open_area .register_introduce_area .introduce_content .content_item .serial{
  width: 55px;
	height: 35px;
  overflow: hidden;
  margin-top:20px;
}
.open_area .register_introduce_area .introduce_content .content_item .serial span{
  font-size: 46px;
	font-weight: bold;
	color: #5372e7;
}
.open_area .register_introduce_area .introduce_content .content_item .text{
  font-size: 24px;
	font-weight: bold;
	letter-spacing: 2px;
	color: #333946;
  margin-top:10px;
}

.open_area .register_introduce_area .introduce_content .connect_item{
  width: 198px;
  height:134px;
  position:relative;
}
.open_area .register_introduce_area .introduce_content .connect_item .line{
  position:absolute;
  content: '';
  left: 0;
  top: 50%;
  transform:translateY(-50%);
  width: 100%;
	border-top: dashed 2px #92b3d1;
  z-index: 1;
}
.open_area .register_introduce_area .introduce_content .connect_item .triangle{
  position:absolute;
  content: '';
  left: 50%;
  top: 50%;
  transform:translate(-50%,-50%);
  width: 13px;
	height: 20px;
  z-index: 2;
  background-image: url('../img/triangle.png');
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
.open_area .register_introduce_area .introduce_content .mobile_connect_item{
  display:none;
}
.open_area .kernel_area .area_title{
  color:#ffffff;
}
.open_area .kernel_area .area_title::after{
  background:#ffffff;
}

/* 手机端样式 */
@media screen and (max-width: 750px) {
  .open_area .banner{
    height: 8.13rem;
    background-size: auto 100%;
    background-position: center;
    padding-top: .4rem;
    box-sizing: border-box;
  }
  .open_area .banner .title{
    font-size: .96rem;
  }
  .open_area .banner .subhead{
    font-size: .56rem;
    letter-spacing: .04rem;
    margin-top:.53rem;
  }
  .open_area .banner .btn{
    width: 2.55rem;
    height: .88rem;
    border-radius: .44rem;
    line-height:.88rem;
    font-size: .32rem;
    margin-top:.93rem;
  }
  .open_area .scheme_area{
    padding: 1.07rem 0 .53rem;
  }
  .open_area .scheme_list{
    width: 9.2rem;
    margin: .8rem auto 0;
    justify-content:center;
  }
  .open_area .scheme_list li{
    width: 9.2rem;
    height:6.13rem;
    margin-right: 0;
  }
  .open_area .scheme_list li .img_box{
    width:100%;
    height: 4.39rem;
    position:relative;
  }
  .open_area .scheme_list li .img_box:hover .img{
    left: -0.13rem;
    top: -0.13rem;
  }
  .open_area .scheme_list li .title{
    font-size: .37rem;
    letter-spacing: .03rem;
    margin-top: .4rem;
  }
  .open_area .scheme_list li .desc{
    font-size: .32rem;
    margin-top: .13rem;
  }
  .open_area .kernel_area{
    padding-top: 1.07rem;
    height:6.93rem;
  }
  .open_area .kernel_list{
    margin-top: .67rem;
    height: 4.6rem;
    background-size: auto 100%;
    background-position: center;
    margin-top:0;
  }
  .open_area .kernel_list li{
    width: 3rem;
    height: 4.2rem;
    margin-left: .27rem;
  }
  .open_area .kernel_list li:hover .content_item{
    top: -0.13rem;
  }
  .open_area .kernel_list li .content_item .icon{
    width: 1.33rem;
    height:1.33rem;
  }
  .open_area .kernel_list li .content_item .title{
    font-size: .37rem;
    font-weight: bold;
    margin-top:.27rem;
  }
  .open_area .kernel_list li .content_item .desc{
    font-size: .32rem;
    margin-top:.27rem;
    padding: 0 5px;
    text-align: center;
    line-height: 20px;
  }



  .open_area .register_introduce_area{
    width: 100%;
    height: 9.55rem;
    padding-top: 1.33rem;
  }
  .open_area .register_introduce_area .introduce_content{
    width: 6.27rem;
    height: 6.93rem;
    margin: .4rem auto 0;
    display:flex;
    align-items: flex-start;
    flex-wrap: wrap;
    position:relative;
  }
  .open_area .register_introduce_area .introduce_content .content_item{
    width: 1.79rem;
    height:50%;
  }
  .open_area .register_introduce_area .introduce_content .content_item .icon{
    width: 1.79rem;
    height: 1.79rem;
  }
  .open_area .register_introduce_area .introduce_content .content_item .serial{
    width: .73rem;
    height: .47rem;
    margin-top:.27rem;
  }
  .open_area .register_introduce_area .introduce_content .content_item .serial span{
    font-size: .61rem;
  }
  .open_area .register_introduce_area .introduce_content .content_item .text{
    font-size: .32rem;
    letter-spacing: .03rem;
    margin-top:.13rem;
  }
  
  .open_area .register_introduce_area .introduce_content .connect_item{
    width: 2.64rem;
    height:1.79rem;
  }
  .open_area .register_introduce_area .introduce_content .connect_item .line{
    border-top: dashed .03rem #92b3d1;
  }
  .open_area .register_introduce_area .introduce_content .connect_item .triangle{
    width: .17rem;
    height: .27rem;
  }
  .open_area .register_introduce_area .introduce_content .second_connect{
    display:none
  }
  .last_content_item{
    order: 4 !important;
  }
  .three_content_item{
    order: 7 !important;
  }
  .last_connact .triangle{
    transform:translate(-50%,-50%) rotate(180deg) !important;
  }
  .open_area .register_introduce_area .introduce_content .mobile_connect_item{
    width: .68rem;
    height: 3.67rem;
    border: dashed .03rem #92b3d1;
    position:absolute;
    right:-0.68rem;
    top: .8rem;
    border-left: 0;
    display:block;
  }
  .open_area .register_introduce_area .introduce_content .mobile_connect_item .triangle{
    position:absolute;
    content: '';
    right: -0.13rem;
    top: 50%;
    transform:translateY(-50%) rotate(90deg);
    width: .17rem;
    height: .27rem;
    z-index: 2;
    background-image: url('../img/triangle.png');
    background-repeat: no-repeat;
    background-size: 100% 100%;
  }
}