@media only screen and (max-width: 878px) {
    .son-banner-box .banner-desc {
        width: 31.25rem;
    }

    .son-banner-box .banner-desc h2 {
        font-size: 2.75rem;
    }
}

@media only screen and (max-width: 640px) {
    .son-banner-box .inside-banner {
        display: none;
    }

    .son-banner-box .banner-desc {
        width: 18.75rem;
    }

    .son-banner-box .banner-desc h2 {
        font-size: 1.875rem;
    }
}

.case-box {
    margin: 2.5rem 0 0 0;
}

.case-box .case-container {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -moz-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

.case-box .case-container:after {
    content: '';
    flex: auto;
}

.case-box .case-container li {
    margin-left: 1rem;
    margin-bottom: 1rem;
    width: -webkit-calc((100% - 1rem * 4) / 4);
    width: calc((100% - 1rem * 4) / 4);
}

.case-box .case-container i {
    display: block;
    width: 23%;
}


.case-box .case-item {
    background: #FFFFFF;
    border-radius: 1rem;
    width: 23%;
    margin-bottom: 1.8rem;
    -webkit-box-shadow: 0px 10px 10px 0px rgba(0, 0, 0, 0.05);
    box-shadow: 0px 10px 10px 0px rgba(0, 0, 0, 0.05);
    cursor: pointer;
}

.case-box .case-item:hover .layer_title {
    color: #007bff;
}

.case-box .case-item .image {
    position: relative;
    width: 100%;
    -o-object-fit: cover;
    object-fit: cover;
}

.case-box .case-item .image img {
    transition: transform 0.3s;
}

.case-box .case-item .image img:hover {
    transform: scale(1.05);
}

.case-box .case-item .layer_label {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
}

.case-box .case-item .layer_label span {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -moz-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -moz-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: #AEAEAE;
    border-radius: 50%;
    opacity: 0.8;
}

.case-box .case-item .layer_label span:last-child {
    margin-left: .625rem;
}

.case-box .case-item .layer_label img {
    width: 1.5rem;
    height: 1.5rem;
    -o-object-fit: contain;
    object-fit: contain;
}

.case-box .case-item .layer_title {
    font-size: 0.875rem;
    color: #666666;
    padding: 1.2rem;
    text-align: center;
}

@media only screen and (max-width: 1080px) {
    .case-box .case-item .layer_label {
        left: 0.5rem;
        bottom: 0.5rem;
    }

    .case-box .case-item .layer_label span {
        width: 1.875rem;
        height: 1.875rem;
        opacity: 0.8;
    }

    .case-box .case-item .layer_label span:last-child {
        margin-left: 0.5rem;
    }

    .case-box .case-item .layer_label img {
        width: 1rem;
        height: 1rem;
        -o-object-fit: contain;
        object-fit: contain;
    }

    .case-box .case-item .layer_title {
        font-size: 0.875rem;
        color: #666666;
        padding: 1.2rem;
        text-align: center;
    }
}

@media only screen and (max-width: 878px) {
    .case-box {
        margin: 1.5rem 1rem 0 1rem;
    }

    .case-box .case-item {
        width: 48%;
        margin-bottom: 0.875rem;
    }

    .case-box .case-item .layer_title {
        padding: 0.5rem 0.9rem;
    }

    .case-box i {
        width: 48%;
    }
}