*{
	padding: 0px;
	margin: 0px;
	list-style: none;
	outline: none;
	text-decoration: none;
}
img{
	width: 100%;
	height: 100%;
}

.case{
	width: 100%;
	margin-top: 10px;
}
.platform_s{
	width: 100%;
	height: 80px;
	background-color: rgb(48,132,192);
}
.platform_s .number{
	width: 65%;
	height: 100%;
	margin: 0 auto;
	color: white;
}
.platform_s .number .number_a{
	width: 70px;
	float: left;
	line-height: 70px;
	font-weight: 700;
	font-size: 50px;
}
.platform_s .number .number_b{
	float: left;
	width: 200px;
	height: 100%;
}
.number_b div{
	margin-top: 10px;
	line-height: 40px;
	font-family: "微软雅黑";
	font-size: 28px;
}
.number_b p{
	font-size: 15px;
}

.case_s{
	width: 100%;
	height: 400px;
	margin-top: 40px;
}
.case_a{
	width: 60%;
	height: 100%;
	margin: 0 auto;
}
.case_a_left{
	width: 40%;
	float: left;
	background-color: rgb(48,132,192);
}
.case_a_left_a,.case_a_left_b{
	width: 100%;
	height: 199px;
}
.a_left_a{
	width: 90%;
	height: 90%;
	margin: 0 auto;
	position: relative;
	top: 50%;
	transform: translateY(-50%);
}
#a_left_nb{
	color: white;
	font-size: 20px;
	font-weight: 500;
}
#a_left_nbs{
	color: white;
	margin-top: 20px;
	letter-spacing: 2px;
}
.case_a_img{
	width: 60%;
	height: 100%;
	float: left;
}

.case_sb{
	width: 100%;
	height: 600px;
	margin-top: 40px;
}
.case_b{
	width: 60%;
	height: 100%;
	margin: 0 auto;
}
.case_b_top{
	width: 100%;
	height: 200px;
	display: flex;
	flex-direction: row;
}
.case_b_top_a,.case_b_top_b{
	width: 50%;
	height: 100%;
}
.b_top_a{
	width: 90%;
	height: 90%;
	
	margin: 0 auto;
	position: relative;
	top: 50%;
	transform: translateY(-50%);
}
#b_left_nb{
	font-size: 20px;
	color: rgb(48,132,192);
	font-weight: 500;
	line-height: 20px;
}
#b_left_nbs{
	margin-top: 20px;
	line-height: 25px;
	letter-spacing: 2px;
}
.case_b_img{
	width: 100%;
	height: 400px;
}

.case_sc{
	width: 100%;
	height: 2200px;
	margin-top: 20px;
}
.case_c{
	width: 60%;
	height: 100%;
	margin: 0 auto;
}
.case_c_a{
	width: 100%;
	height: 350px;
	margin: 20px 0 20px 0;
}
.case_c_nb{
	width: 50%;
	height: 100%;
	float: left;
}
.case_c_nbs{
	width: 80%;
	height: 70%;
	line-height: 40px;
	margin: 0 auto;
	position: relative;
	top: 50%;
	transform: translateY(-50%);
}
.case_c_img{
	width: 50%;
	height: 100%;
	float: left;
	letter-spacing: 2px;
}

.case_c_b{
	height: 450px;
	margin: 20px 0 20px 0;
}
.case_c_b_img{
	width: 100%;
	height: 300px;
}
.case_c_b_nb{
	height: 150px;
}
.case_c_b_nbs{
	width: 90%;
	height: 80%;
	line-height: 40px;
	margin: 0 auto;
	position: relative;
	top: 50%;
	transform: translateY(-50%);
}

.case_c_c{
	height: 500px;
	margin: 20px 0 20px 0;
}
.case_c_c_left{
	width: 47%;
	height: 100%;
	float: left;
}
.case_c_c_right{
	width: 47%;
	height: 100%;
	float: right;
}
.case_c_c_img{
	width: 100%;
	height: 280px;
}
.case_c_c_nb{
	height: 220px;
}
.case_c_c_nbs{
	width: 90%;
	height: 80%;
	line-height: 30px;
	margin: 0 auto;
	position: relative;
	top: 50%;
	transform: translateY(-50%);
}

.Dividing_line{
	width: 90%;
	margin: auto;
	border: 1px dashed rgb(48,132,192);
}