.nav {
        height: 48px;}
.nav ul {
height: 18px;}
.nav ul li{font-weight: 600;    font-size:16px;
height: 20px;
line-height: 16px;}


/*样式*/
    .banner { position: relative; overflow: auto; text-align: center;}

.banner li { list-style: none;}

.banner ul li { float: left;}

#b04 { width: 100%;}

#b04 .dots { position: absolute; left: 0; right: 0; bottom: 20px;}

#b04 .dots li 

{ 

    display: inline-block; 

    width: 10px; 

    height: 10px; 

    margin: 0 4px; 

    text-indent: -999em; 

    border: 2px solid #fff; 

    border-radius: 6px; 

    cursor: pointer; 

    opacity: .4; 

    -webkit-transition: background .5s, opacity .5s; 

    -moz-transition: background .5s, opacity .5s; 

    transition: background .5s, opacity .5s;}

#b04 .dots li.active 

{

    background: #fff;

    opacity: 1;}

#b04 .arrow { position: absolute; top: 190px;}

#b04 #al { left: 15px;}

#b04 #ar { right: 15px;}

 .banner { position: relative; overflow: auto; text-align: center;}

.banner li { list-style: none;}

.banner ul li { float: left;}

#b04 { width: 100%;}

#b04 .dots { position: absolute; left: 0; right: 0; bottom: 20px;}

#b04 .dots li 

{ 

    display: inline-block; 

    width: 10px; 

    height: 10px; 

    margin: 0 4px; 

    text-indent: -999em; 

    border: 2px solid #fff; 

    border-radius: 6px; 

    cursor: pointer; 

    opacity: .4; 

    -webkit-transition: background .5s, opacity .5s; 

    -moz-transition: background .5s, opacity .5s; 

    transition: background .5s, opacity .5s;}

#b04 .dots li.active 

{

    background: #fff;

    opacity: 1;}

#b04 .arrow { position: absolute; top: 190px;}

#b04 #al { left: 15px;}

#b04 #ar { right: 15px;}