footer{
    width: 100%;
    display: block;
    position: relative;
}
.footer-bg{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
}
.footer-bg span{
    z-index: 1;
    position: relative;
    opacity: 0.5;
}

.footer-box{
    width: 1200px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    font-size: 0;
    box-sizing: border-box;
    padding: 70px 0;
    z-index: 2;
    position: relative;
}
.footer-info{
    font-size: 16px;
    display: block;
    color: #f5f5f5;
    letter-spacing: 0.06em;
    margin-bottom: 15px;
}
.footer-web{
    font-size: 12px;
    color: #f5f5f5;
    letter-spacing: 0.06em;
    display: block;
}




@media only screen and (max-width: 1200px){
    .footer-box{
        width: 1000px;
    }
}
@media only screen and (max-width: 1000px){
    .footer-box{
        width: 750px;
    }
}
@media only screen and (max-width: 750px){
    .footer-box{
        width: 550px;
    }
}
@media only screen and (max-width: 550px){
    .footer-box{
        width: 95vw;
        padding: 20px 0;
    }
    .footer-info{
        font-size: 12px;
        margin-bottom: 10px;
    }
    .footer-web span{
        display: inline-block;
    }
}