.xs-padding {padding: 20px 0;}
body{
    -webkit-user-select:none;
    -moz-user-select:none;
    -ms-user-select:none;
    user-select:none;
}
#logo_top{
    width: 68px;
    height: 68px;
}
#slogan_0{
    line-height: 68px;
    color: #FFF;
    font-size: x-large;
    font-family:"微软雅黑";
    letter-spacing:3px;
    text-align: center;
    margin-left: 10px;
}
#slogan_1{
    color: #FFF;
    font-size: x-large;
    font-family:"微软雅黑";
    letter-spacing:3px;
    margin: 20px 0 10px 0;
}
#slogan_2{
    background-color: #F96C1F;
    color: #FFF;
    line-height: 24px;
    border-radius: 12px;
    padding: 0 12px 0 12px;
    font-size: small;
    font-family:"微软雅黑";
    letter-spacing:3px;
}
#top_ads{
    width: 100%;
    height: 260px;
    margin: 20px 0;
    border-radius: 6px;
    box-shadow:2px 2px 5px #333;
}



.login-nickname{
    height: 40px;
    width: 200px;
    background: #FF8831;
    text-align: center;
    line-height: 40px;
    color: #FFF;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
}
.login-nickname:hover{
    cursor: pointer;
    color: #EEE;
}
#avatar_img{
	border-radius: 50%;
	width: 36px;
	height: 36px;
    margin: auto 3px auto 0;
}




.block-title{
    color: #FF812D; margin: 0 18px;font-size: x-large;
}

.clr-blue-small{
	height: 15px;
	width: 15px;
	border-radius: 50%;
	margin:0 5px;
}
.clr-orange-big{
	height: 25px;
	width: 25px;
	border-radius: 50%;
	margin:8px;
}

.zhuangqu-box{
	border-radius: 5px;
	padding: 8px;
    box-shadow:2px 2px 5px #888;
}
.zhuangqu-box:hover{
	background-color: #FFE9DA;
}

.zhuangqu-img{
 	border-radius: 5px;
    transition-property: transform;
    transition-duration: 0.5s
}
.zhuangqu-img:hover{
	transform:translate(0px, 10px);
}

.zhuangqu-go{
	text-align: center;
	margin: 15px auto ;
}
.zhuangqu-go:hover{
	border-bottom-right-radius: 5px;
	border-bottom-left-radius: 5px;
}
.zhuangqu-go a{color:#333;}
.zhuangqu-go a:hover{color:#F72;}

.box-work-course{
    padding: 8px;
    background-color: #FFF;
    box-shadow:2px 2px 5px #888;
}



.ul-bottom li {margin: 10px 0;}
.item-center{display: flex;justify-content: center;}
.small-content{display: flex; margin: 15px 0px;}
.small-circle{color: #F72; margin-right: 3px;}



.white-text{
color: #FFF;
font-size:x-large;
}
/*------------------------------------*\
	保持宽高比：宽
\*------------------------------------*/
.aspectration{
	position: relative;
	height: 0;
	width: 100%;
	padding-top: 75%;
}
.aspectration > * {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}