a,a:hover{list-style: none;
	text-decoration: none;
	color:black}

 .box-shadow-2 {
            /*-webkit-box-shadow: 0 0 10px #0CC;
            -moz-box-shadow: 0 0 10px #0CC;*/
            box-shadow: 0 2px 0px #323545;
        }

        .button {
            color: white;
            font-family: 'Microsoft YaHei';
            background-color: #565a6a;
            width: 10%;
            height: 3.5rem;
            line-height: 3.5rem;
            font-size:2.2rem;
            text-align: center;
            border-radius: 2px;
            display:block;
            position:relative;
            float:right;
            left:-30%;
            top:-9rem;
        }
        .button:hover{
            cursor:pointer;
        }

.content_1{
	height: 25%;width: 100%;
}
.content_1 img{width: 100%}

.content_2{margin: 50px auto 100px auto;text-align: center;width:1024px;	}
.content_2 span{font-size: 16px}
.content_2 h4{float: left;margin: 40px 0 40px 0;color:#1979bf;font-weight: bold;font-family: Microsoft YaHei,arial,宋体}
.content_2 .first{clear: both}
.content_2 .two,.three,.four{margin: 100px 0 40px 0}

@media screen and (max-width: 1450px) {
    .button {
            color: white;
            font-family: 'Microsoft YaHei';
            background-color: #565a6a;
            width: 10%;
            height: 3rem;
            line-height: 3rem;
            font-size:1.5rem;
            text-align: center;
            border-radius: 2px;
            display:block;
            position:relative;
            float:right;
            left:-32%;
            top:-7rem;
        }
}

@media screen and (max-width: 1290px) {
    .button {
            color: white;
            font-family: 'Microsoft YaHei';
            background-color: #565a6a;
            width: 10%;
            height: 3rem;
            line-height: 3rem;
            font-size:1.8rem;
            text-align: center;
            border-radius: 2px;
            display:block;
            position:relative;
            float:right;
            left:-32%;
            top:-7rem;
        }
}

@media screen and (max-width: 1040px) {
    .button {
            color: white;
            font-family: 'Microsoft YaHei';
            background-color: #565a6a;
            width: 10%;
            height: 2rem;
            line-height: 2rem;
            font-size:1.2rem;
            text-align: center;
            border-radius: 2px;
            display:block;
            position:relative;
            float:right;
            left:-32%;
            top:-5rem;
        }
}