body {
  min-width: 990px;
}

.w960 {
  min-width: 960px;
  margin: 0 auto;
}

.clearfix:after {
  content: ".";
  display: block;
  height: 0;
  visibility: hidden;
  clear: both;
}

.clearfix {
  *zoom: 1;
}

.button {
  display: inline-block;
  cursor: pointer;
  text-decoration: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  border-radius: 2px;
  text-align: center;
}

.button:hover {
  color: #fff;
  opacity: .95;
}

.button:active {
  opacity: .8;
}

.button-primary {
  background-color: #ff8a29;
  color: #fff;
  border: 1px solid #ff8a29;
}

.button-large {
  width: 400px;
  height: 60px;
  font-size: 20px;
  line-height: 60px;
}

.button-xs {
  width: auto;
  padding: 4px 6px;
  line-height: 1;
  font-size: 12px;
}

.button-middle {
  font-size: 20px;
  width: 230px;
  height: 60px;
  line-height: 60px;
}

.color-link {
  color: #317ee7;
}

.center {
  text-align: center;
}

.banner-item {
  min-height: 500px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}