.smartCity-box{
    margin: 50px 0;
}
.smartCity-box .nav{
    text-align: center;
    font-size: 0;
}
.smartCity-box .nav li{
    display: inline-block;
}
.smartCity-box .nav li a{
    display: inline-block;
    margin: 0 5px;
    padding: 10px 15px;
    font-size: 14px;
    color: #333;
    background: #ccc;
    cursor: pointer;
    border-radius: 2px;
}
.smartCity-box .nav li.active a{
    background: #0BB3FB;
    color: #fff;
}
@media screen and (max-width: 768px) {
    .smartCity-box .nav{
        display: flex;
    }
    .smartCity-box .nav li{
        flex: 1;
    }
    .smartCity-box .nav li a{
        margin: 0 3px;
        padding: 8px 12px;
    }
}
.smartCity-box a.filtr-item{
    display: block;
    padding: 10px;
    cursor: pointer;
    overflow: hidden;
}
.smartCity-box a.filtr-item:hover img{
    transform: scale3d(1.1,1.1,1.1);
}
.filtr-item img{
    width: 100%;
    transition: all .3s linear;
}
.top-banner{
    padding: 0;
}
.title-box{
    margin-top: 20px;
    text-align: center;
}
.title-box h3{
    display: inline-block;
    color: #0BB3FB;
    margin: 0;
    padding: 5px 0;
    border-bottom: 3px solid #0BB3FB;
    text-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
.title-box b{
    display: block;
    color: #0BB3FB;
    animation: fadeInUp .5s linear;
}
.title-box p{
    margin-top: 10px;
    text-align: left;
    line-height: 25px;
    text-indent: 2em;
}