.clearfix:after {
    content:""; 
    display: block; 
    clear:both; 
 }
.topimg{
    width: 100%;
    height: 1.5rem;
    position: relative;
}
.topimg img{
	width: 100%;
    height: 1.5rem;
}
.nav{
    width: 100%;
    height: 1.1rem;
    background-color: #343c50;
    white-space: nowrap;
    overflow: hidden;
    overflow-x: auto;
    line-height: 1.1rem;
}
.nav a{
    font-size: 0.34rem;
    line-height: 0.34rem;
    color: #b4b4b4;
    padding: 0 0.32rem;
    border-left:1px solid #b4b4b4;
    height: 0.34rem;
    display: inline-block;
    margin: 0.32rem 0;
}
.navactive{
    font-size: 0.46rem !important;
    color: #ffffff !important;
}
.nav a:first-child{
    border-left: 0;
}

.titletypeb{
    width: 100%;
    height: 0.52rem;
    line-height: 0.52rem;
    margin: 0.4rem auto;
    background-color: #d5e8f3;
    text-align: center;
    font-size: 0.42rem;
    color: #31394e;
    letter-spacing:0.12rem;
}
.intro{
    width: 9.15rem;
    margin: 0 auto;
    border-bottom: 1px solid #ababab;
    padding-bottom: 0.42rem;
}
.intro>p{
    text-indent: 2em;
    font-size: 0.44rem;
    line-height: 0.94rem;
}
.guangbolist{
    width: 100%;
    border-bottom: 1px solid #acacac;
    padding-bottom: 0.5rem;
    margin-bottom: 0.105rem;
}
.guangbolist>div{
    line-height: 1.08rem;
    border-bottom: 1px solid #acacac;
    width: 9.15rem;
    margin: 0 auto;
    display: flex;
}
.fontsizea{
    font-size: 0.44rem;
    flex: 1;
}
.fontsizeb{
    font-size: 0.4rem;
    flex: 1;
}