/* 公共样式表，可以避免某些样式一直重复写 */
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  font-size: 14px;
  color: #333;
  background: #f8f8f8;
}
/* 版心 */
.ban{
  width: 1100px;
  margin: 0 auto;
}
/* 清楚浮动*/
.clearfix:after{
  content: " ";
  display: block;
  clear:both;
  height: 0;
  visibility: hidden;
}
/* a标签去除默认的样式 */
a{
  text-decoration: none;
  color: #333;
}
/* 导航样式 */
.nav{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: #4c5a65;
  z-index: 9;
}
.nav-lf,.nav-lf a,.nav-rg a{
  float:left;
}
.nav-lf a,.nav-rg a{
  color: #fff;
  font-size: 18px;
  height:60px;
  line-height: 60px;
  padding:0 20px;
}
.nav-rg{
  float:right;
}
.nav .active{
  background: #33bc60;
}
.nav-rg .call{
  line-height: normal;
}
.nav-rg .call div{
  height: 30px;
  line-height: 30px;
}
.call .call-tel{
  color: #ffaa32;
}
.nav .logo{
  font-size: 24px;
  background: linear-gradient(to right, red, blue);
  -webkit-background-clip: text;
  color: transparent;
}

/* 底部版权 */
.foot{
  background: #4c5a65;
  color: #ddd;
  padding: 30px;
  text-align: center;
}