/* body{background-color: #F1F1F1} */
.demo{
    padding: 3em 0;
}
.box{
    /* position: relative; */
    /* perspective: 1000px; */
}
.box .box-img{
    transform: rotateY(0);
    transition: all 0.50s ease-in-out 0s;
    margin-bottom: 25px;
}
.box:hover .box-img{
    transform: rotateY(-90deg);
}
.box .box-img img{
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow:0 0 8px 0 #000000;
}
.box .box-content{
    margin-top:10px;
    margin-bottom:20px; 
    border-radius: 10px;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    padding: 60px 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.568);
    transform: rotateY(90deg);
    transition: all 0.50s ease-in-out 0s;
}
.box:hover .box-content{
    transform: rotateY(0);
}
.box .title{
    font-size: 20px;
    color: #fff;
    text-transform: uppercase;
}
.box .description{
    font-size: 14px;
    line-height: 24px;
    color: #fff;
}
.box .title:after,
.box .description:after{
    content: "";
    width: 80%;
    display: block;
    border-bottom: 1px solid #fff;
    margin: 15px auto;
}
.box .social-links{
    margin: 0;
    padding: 0;
    list-style: none;
    text-align: left;
}
.box .social-links li{
    /* display: inline-block; */
    margin: 0 10px;
}
.box .social-links li a{
    font-size: 14px;
    color: #a6a6a6;
}
.box .social-links li a:hover{
    text-decoration: none;
    color: #fff;
}
@media only screen and (max-width: 990px) {
    .box{  margin-bottom:20px; }
}
@media only screen and (max-width: 479px) {
    .box .box-content{ padding: 20px; }
}

.quality_title_1{
	font-size: 20px;
	color: #151392;
	line-height: 1;
	/* font-weight: bold; */
	font-family: "Microsoft YaHei";
	text-align: center;
    position: relative;
    height: 40px;
    line-height: 40px;
    width: 100%;
	margin-top: 25px;
	margin-bottom: 5px;
			
}
		

.quality-bg span{
	font-size: 16px;
	color: #7a7a7a;
	line-height: 20px;
	text-align: center;
	position: relative;
	margin-bottom: 20px;
	padding: 5px;
	display: block;
}
.quality_title_1::after, .quality_title_1::before{
	content: "";
	position: absolute;
	top: 50%;
	background:#151392;
	height: 1px;
	width: 24%;
}
.quality_title_1::after{
	left: 0;
}
.quality_title_1::before{
	right: 0;
}