.clearfix1:after{
    content: "";
    display:block;
    clear: both;
    height: 0;
    visibility: hidden;
}
.clearfix1{
    *zoom:1;
}


/*帮助中心*/
.question-list{
	margin-top: 40px;
	border-top:1px solid #999;
}
.question-list>ul>li{
	border-bottom:1px dotted #999;
	padding:10px 0;
}
.question-list>ul>li>a{
	font-size: 16px;
	color: #555;
}
.question-list>ul>li>a span{
	display: inline-block;
}

.level{
	display: none;
}
.level ul li a{
    margin-left: 10px;
}

/*关于我们*/
.help-center-content{
	padding-top: 50px;
}
.help-center-content img{
	width: 100%;
}
.about-text{
	margin-top: 20px;
}
.about-text span{
	display: block;
	font-size: 16px;
	margin-top: 10px;
}

/* 大标题始终居中css===================================== */
.product-banner{
    position: relative;
}
.banner-title-box{
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 2;
    text-align:center;
}
.btc{
    display: inline-block;
    *display: inline;
    *zoom: 1; 
    height:46px;
    line-height:46px;
    margin:0 auto;
}
.btc-l,.btc-r{
    position: relative;
    left:0;
    top:-8px;
    display: inline-block;
    *display: inline;
    *zoom: 1; 
    width: 40px;
    height: 0;
    margin-right: 20px;
    border-top:1px solid #333;
}
.btc-r{
    margin-left: 20px;
}