.mainbox{width: 1200px;margin: 30px auto;}
.generalMes a,.activeMes a{font-size: 20px;text-align: center;display: inline-block;color:#333333;width: 100%;height: 100%;padding:0px 28px;padding-top:100px;box-sizing: border-box;}
.generalMes li,.activeMes li{width: 162px;height: 162px;float:left;background: url(zfbg_03_20210730.jpg) no-repeat center center;margin-right: 45px;margin-bottom: 40px;}
.activeMes a{padding: 0 20px;padding-top:100px;}
.activeMes li{background: url(zfbg_06_20210730.jpg) no-repeat center center;height: 164px;}
.generalMes li:nth-child(6n),.activeMes li:nth-child(6){margin-right: 0px;}
.generalMes li:nth-child(1),.activeMes li:nth-child(1){background-position: 0 0;}
.generalMes li:nth-child(2),.activeMes li:nth-child(2){background-position: -207px 0;}
.generalMes li:nth-child(3),.activeMes li:nth-child(3){background-position: -417px 0;}
.generalMes li:nth-child(4),.activeMes li:nth-child(4){background-position: -622px 0;width: 163px;}
.generalMes li:nth-child(5),.activeMes li:nth-child(5){background-position: -830px 0;width: 163px;}
.generalMes li:nth-child(6),.activeMes li:nth-child(6){background-position: -1037px 0;width: 163px;}
.generalMes li:nth-child(7){background-position: 0px -201px;}
.generalMes li:nth-child(8){background-position: -207px -201px;}
.generalMes li:nth-child(9){background-position: -417px -201px;}
.generalMes li:nth-child(10){background-position: -622px -201px;width: 163px;}
.generalMes li:nth-child(11){background-position: -830px -201px;width: 163px;}
.generalMes li:nth-child(12){background-position: -1037px -201px;width: 163px;}

.topic{margin-bottom: 50px;}