*{ margin:0; padding:0;}
body{ margin:0px auto; font-size:16px; font-family:"微软雅黑"; margin:0 0 0 0; padding:0 0 0 0}
ul, li, dl, dt, dd { list-style:none; margin:0px; padding:0px; } 
.spacebox{width:100%;border-top:1px transparent;height:1px;overflow:hidden;background-color:transparent;clear:both;}
a{text-decoration:none; color:#000 }
a:hover{text-decoration:none; color:#F00}
h4{font-size:14px; font-weight:normal}
h3{font-size:14px; font-weight:bold}
img{width: auto;  height: auto;  max-width: 100%;  max-height: 100%; } 

.img_ban{max-width:100%;height:auto;}

.top{width:100%; height:50px; margin:0 auto; background:url(top.jpg) no-repeat center center; position:fixed}
@media(max-width:1000px){.top{width:100%; height:50px; background:url(top.png) no-repeat center center #e6e6e6; position:fixed}
}

.banner{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(topa.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }

.bannner{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(QQ_old.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; padding-top:15px }

.pice{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(pice_new.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }

.courses{margin-top:50px}


.tec_import{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(pica.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }
.tec_fx{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(picb.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }

.tec_con{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(picc.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }

.combox_100{width:auto; height:auto; margin:0 auto;text-align:center; background-image:url(picd.jpg); background-repeat: no-repeat; background-position: center center; overflow:hidden;  background-size:cover; }


td.ta-lf{text-align:center}