.boxbg{background-color: #f2f3f5;}
.ceprtext{padding:100px 0 100px 0;}
.ectit{height:50px;text-align: center;font-size:40px;color:#333;padding:0 0 30px 0;}
.boxborder{border:1px solid #d3d3d3;border-bottom:0;border-top-left-radius: 5px;border-top-right-radius: 5px;overflow:hidden;}
.ech2{height:50px;text-align: center;font-size:18px;color:#555;background:#f2f2f2;border-bottom:1px solid #d3d3d3;font-weight:bold;}
.ech2>div{float:left;height:50px;line-height:50px;border-right:1px solid #d3d3d3;}
.ech2>div:last-child{border-right:0;}
.ech2>div:nth-child(1){width:5.3%;background:#f2f2f2;}
.ech2>div:nth-child(2){width:31%;}
.ech2>div:nth-child(3){width:14%;}
.ech2>div:nth-child(4),.ech2>div:nth-child(5),.ech2>div:nth-child(6){width:10%;}
.ech2>div:nth-child(7){width:19%;}
.nobg{background:#f7f7f7;color: #666;font-size:18px;font-weight: 100;transition: all 0.3s ease;}
.nobg:hover{background:#f2f2f2;}