*{
  margin: 0;
  padding: 0;
  text-decoration: none;
  font-family:arial, "微软雅黑";
  color: #333;
  border: 0;
}
.mainBox {
  width: 1000px;
  height: 580px;
  position: absolute;
  text-align: center;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
}
.clear{
  clear: both;
}
.logo img{
  margin: 80px auto 40px auto;
  display: block;
}
.functions{
  height: 34px;
  width: auto;
}
.functions span{
  display: block;
  float: left;
  font-size: 18px;
  height: 34px;
}
.functions i{
  display: block;
  float: left;
  width: 2px;
  height: 34px;
  background: #ddd;
  margin: 0 48px;
}
.downloadBox{
  height: 230px;
  margin-top: 60px;
}
.downloadBox a{
  width: 228px;
  height: 228px;
  border: 1px solid #DDD;
  display: block;
  float: left;
  position: relative;
}
.downloadBox a:hover{
  background: #fafafa;
}
.downloadBox a .defaultBlock img{
  margin: 50px auto 30px auto;
  display: block;
  cursor: hand;
}
.downloadBox a .defaultBlock span{
  font-size: 18px;
  line-height: 20px;
  display: block;
  text-align: center;
}
.downloadBox a:hover .defaultBlock{
  display: none;
}
.downloadBox a:hover .hoverBlock{
  display: block !important;
}
.downloadBox a:hover .hoverBlock img{
  width: 150px;
  height: 150px;
  display: block;
  margin: 20px auto 16px auto;
}
.downloadBox a:hover .hoverBlock span{
  font-size: 16px;
  line-height: 18px;
  text-align: center;
  display: block;
}
.bottomBox{
  background: #fafafa;
  height: 40px;
  border-top: 1px solid #DDD;
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
}
.bottomBox span{
  font-size: 14px;
  height: 40px;
  line-height: 40px;
  margin: 0 2px;
}
.bottomBox span a:hover{
  text-decoration: none;
  outline:none;
  color:#459df5;
}
a:link,a:visited,a:hover,a:active{
  text-decoration: none;
  outline:none;
  color: #000;
}
.input-item {
  font-size:14px;
  border: 0;
  padding:6px 4px;
  border-bottom: 1px solid #ccc;
}
.btnLogin {
  text-align: center;
  padding: 6px 20px;
  background: #ddd;
  color: #fff;
  cursor: pointer;
  border-radius: 4px;
}