body { margin:0px ; padding:0px;}
ul,li,dt,dt,dd{margin:0px;padding:0px;list-style:none;}
.top{width:1004px; height:30px; margin:0px auto;}
.top li{ float:left; list-style:none; width:8%; height:30; line-height:30px; font-size:14px; text-align:center;font-weight:bold; }
.top li a:link{ color:#333; text-decoration:none;}
.top li a:visited{color:#333;text-decoration:none;}
.top li a:hover{color:#ff3300;text-decoration:underline;}
.all{ width:1004px; margin:0px auto;text-align:center;}
.left{ width:273px; float:left;}
.left_1{ width:100%; height:274px;}
.left_2{ width:100%; height:150px;}
.left_3{ width:100%; height:402px;}
.left_4{ width:100%; height:271px;}
img{border:0px;}
.c_left{ float:left;}
.c_right{ float:left;}