html, body {
    position: relative;
    height: 100%;
}
body {
    background: #eee;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color:#000;
    margin: 0;
    padding: 0;
}
input[type="text"], input[type="password"], textarea {
    outline-style: none;
    -webkit-appearance: none;
}
*,div, a, img, body, li,p,ul {
    margin: 0;
    font-family: PingFangSC-Medium, sans-serif;
    padding: 0;
}
img{
	display: block;
	width: 100%;
}
li {
    list-style-type: none;
}

a {
    text-decoration: none;
    outline: none;
    cursor: pointer;
    color: #333;
}

ul {
    -webkit-padding-start: 0px;
}

.cl {
    clear: both;
}

.cursor {
    cursor: pointer;
}
/*img{
	width: 100%;
}*/
html,body {
    font-family: '微软雅黑'; /*background:#ccc; */
    width: 100%;
    margin: 0 auto;
    background: #fff;
}

.fix {
    clear: both;
}
.head_case{
	width: 100%;
	margin: 0 auto;
}
.head_title{
	font-size: 24px;
	color: #000101;
	text-align: center;
	letter-spacing: 4px;	
	margin: 63px 0 54px 0;
}
.head_bottom{
	width: 100%;
	margin: 0 auto;
}
    .head_bottom ul li {
        float: left;
        width: 32%;
        margin-left: 1%;
        height: 28vw;
        margin-bottom: 5vw;
    }
.head_bottom ul li img{
	width: 80%;
}