/* 产品优势 */
 * {
 	margin: 0;
 	padding: 0;
 }

 body {
 	font-family: "黑体";
 	max-width: 1440px;
 	margin: 0 auto;
 }
.bk{
	
	margin: 50px auto;	
	box-shadow: 0 0 12px 0 rgba(47,48,57,0.23);
	border-radius: 15px;
	overflow: hidden;
	position: relative;
	transition: height .3s;
	background: url(http://www.jieyantech.com/a/chanpin20201222/img/introbg.png) no-repeat right bottom;
	padding: 40px;	
}
.bk::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 130px;
  height: 130px;
  border-bottom-right-radius: 100%;
  background: #f4f8fe;
  z-index: -99;
}
.bk_title{
	text-align: center;
	color: #2e71a7;
	font-size: 22px;
	margin-bottom: 20px;
	letter-spacing: 5px;
	font-weight: 600;
}

 

 .youshi .youshi_content {
 	display: flex;
 	justify-content: space-between;
 	padding-top: 30px;
 }

 .youshi .youshi_content .youshi_left,
 .youshi_right {
 	width: 49%;
 	display: flex;
 }

 .youshi .youshi_content .youshi_left .youshi_p,
 .youshi_right .youshi_p {
 	margin-left: 15px;
 }

 .youshi .youshi_content .youshi_left h4,
 .youshi_right h4 {
 	font-size: 16px;
 	color: #2e71a7;
 	letter-spacing: 2px;
 }

 .youshi .youshi_content .youshi_left p,
 .youshi_right p {
 	letter-spacing: 2px;
 	line-height: 22px;
	color: #666;
	font-size: 12px;
               margin-top: 10px;
 }

 /* 工作原理 */
 .theory {
 	display: flex;
 	justify-content: space-between;
	
 }

 .theory .theory_left img {
 	width: 100%;
 }

 .theory .theory_left,
 .theory_right {
 	width: 49%;
 }

 .theory .theory_right h4 {
 	font-size: 22px;
 	color: #2e71a7;
 	letter-spacing: 2px;
	margin-top: 20px;
 }

 .theory .theory_right p {
 	letter-spacing: 2px;
 	line-height: 30px;
 	color: #666;
 	font-size: 15px;
 	padding-top: 15px;
 }

 /* 排渣方式 */


 .slagging .slagging_list {
 	display: flex;
 	justify-content: space-between;
 }
 .slagging .slagging_list .slagging_particulars {
 	width: 80%;
 }

 .slagging .slagging_list .slagging_img {
 	width: 20%;
 }

 .slagging .slagging_list .slagging_particulars h4 {
 	font-size: 20px;
 	color: #0061c6;
 	letter-spacing: 2px;
 	margin-top: 20px;
 	padding-bottom: 15px;
 }

 .slagging .slagging_list .slagging_particulars P {
 	letter-spacing: 2px;
 	line-height: 30px;
 	color: #666;
 	font-size: 15px;
 }






 .fanwei_con {
 	display: flex;
 	justify-content: space-between;
 	text-align: center;
 }

 .fanwei_con .fanwei_list {}

 .fanwei_con .fanwei_list img {
 	width: 270px;
 	height: 270px;
 	border-radius: 50%;
 }

 .fanwei_con .fanwei_list p {
 	font-size: 18px;
 	padding-top: 20px;
 }

 .fanwei_con .fanwei_list p:hover {
 	color: #00649D;
 }

/* 技术参数 */
.param {
	margin: 0 auto;
	margin-top: 30px;
	border: 1.5px solid #5E5E5E;
    width: 100%;
}


.param .form {
	border-top: 1px solid #5E5E5E;
}


.param .form:nth-child(1) {
	border-top: none;
	background-color: #cccccc;
	color: #fff;
}

.param .form ul {
	display: flex;
	height: 60px;
	line-height: 60px;
	margin: 0;

}

.param .form ul:nth-child(1) {
	
}

.param .form ul li {
	font-size: 16px;
	/* padding-top: 10px; */
	border-right: 1px solid #5E5E5E;
	text-align: center;
}
.param .form ul li:last-child {
	border-right: none;

}
.param .form ul:hover {
	background-color: #3671CF;
    color: #fff;
}
/* 保养指南 */


.zhinan .zhinan_con{
	/* justify-content: space-between; */
	display: flex;
	margin-top: 60px;
	text-align: center;
}
.zhinan .zhinan_con .zhinan_left{
	width: 45%;
	}
.zhinan .zhinan_con .zhinan_left img{
	width: 60%;
	
}
.zhinan .zhinan_con .zhinan_right{
	width: 45%;
}
.zhinan .zhinan_con .zhinan_right .title{
	font-size: 18px;
	font-weight: bold;
	margin-top: 40px;
	text-align: left;
}
.zhinan .zhinan_con .zhinan_right .p{
	font-size: 16px;
	margin-top: 20px;
	line-height: 25px;
	text-align: left;
	color: #666;
}