.crafts-box{
    width: 1200px;
    margin: auto;
    border: 1px solid #eee;
    min-height: 800px;
    padding: 50px 0;
}
.crafts-box img{
    max-width: 100%;
}
.c-logo{
    margin: auto;
    display: block;
    text-align: center;
}
.c-logo img:first-child {
    width: 200px;
    vertical-align: middle;
    display: inline-block;
}
.c-logo img:last-child{
    width: 250px;
    vertical-align: middle;
    display: inline-block;
    margin-left: 10px;
}

.c-banner{
    width: 100%;
    background: #000;
    text-align: center;
    margin: 40px 0 20px;
    height: 60px;
    z-index: 14;
}
.c-banner .c-box{
    display: block;
    width: 450px;
    margin: auto;
    padding-left: 30px;
}
.c-banner span{
    display: inline-block;
}
.c-banner a{
    display: inline-block;
    padding: 0 20px;
    cursor: pointer;
    height:60px;
}
.c-banner a:hover,.c-banner span.cur a{
    background: #fff;
}
.c-banner a i{
    display: block;
    height: 40px;
    margin-top: 10px;
    min-width: 50px;
}
.c-banner a i.i-1{
    background:  no-repeat;
    background-size: auto 40px;
}
.c-banner a i.i-2{
    background:  no-repeat;
    background-size: auto 40px;
}
.c-banner a i.i-3{
    background:  no-repeat center;
    background-size: auto 40px;
    width: 100px;
}
.c-banner a i.i-4{
    background:  no-repeat center;
    background-size: auto 40px;
    width: 90px;
}
.c-banner span.cur a i.i-1,.c-banner a:hover i.i-1{
    background:  no-repeat;
    background-size: auto 40px;
}
.c-banner span.cur a i.i-2,.c-banner a:hover i.i-2{
    background:  no-repeat;
    background-size: auto 40px;
}
.c-banner span.cur a i.i-3,.c-banner a:hover i.i-3{
    background:  no-repeat center;
    background-size: auto 40px;
    width: 100px;
}
.c-banner span.cur a i.i-4,.c-banner a:hover i.i-4{
    background:  no-repeat center;
    background-size: auto 40px;
    width: 90px;
}

.crafts1{
    display: block;
    overflow: hidden;
    width: 96%;
    margin: 50px auto 0px;
    border-bottom: 2px dashed #eee;
}
.crafts1:last-child{
    border-bottom: 0;
}
.crafts1 img{
    width: 50%;
    height:450px;
    float: left;
}
.c-title{
    display: block;
    margin: 50px 0 20px 20px;
}
.c-title.c-top{
    margin-top: 180px;
}
.c-title img{
    /*width: 400px;*/
    margin: auto;
}
.crafts1 img.c-tip{
    width: 80%;
    height: auto;
    /*margin: auto;*/
    float: none;
    display: block;
}
.patent-box,.patent-box ul{
    overflow: hidden;
    width: 96%;
    margin: 25px auto 0px;
}
.patent-box li{
    width: 50%;
    height:411px;
    float: left;
    padding: 10px;
    box-sizing: border-box;
    position: relative;
    margin-bottom: 20px;
    overflow: hidden;
}
/*.patent-box li:nth-child(2n){
    float: right;
}*/
.patent-box li span{
    position: absolute;
    top: 10px;
    left: 10px;
    background: url(/uploads/image/saicrafts/block.png) repeat-x;
    background-size: auto 46px;
    font-size: 20px;
    color: #fff;
    padding: 8px 20px;
    min-width: 100px;
    text-align: center;
    font-weight: bold;
    margin-top: 10px;
}