/*自定义样式*/
.bg-top {
    width: 100%;
    height: auto;
    max-height: 320px;
    background-image: url('https://snail-factory.oss-cn-beijing.aliyuncs.com/ouye/img/cases_bg.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    font-weight: 400;
    color: #FFFFFF;
}

@media screen and (min-width: 1200px) {
    .bg-top {
        height: 320px;
    }
}

@media screen and (min-width: 768px) and (max-width: 992px) {
    .bg-top {
        height: 280px;
    }
}

@media screen and (max-width: 768px) {
    .bg-top {
        max-height: 240px;
    }
}

.case-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 1200px;
    max-height: 800px;
    margin: 0 auto;
    text-align: center;
    align-items: center;
    padding-bottom: 40px;
}

.bm_content {
    width: 100%;
    max-width: 1200px;
    margin: 0 5px 0 5px;
    border-radius: 3px;
    font-size: 14px;
    overflow: hidden;
    position: relative;
}

.case-td {
    font-size: 10px;
    text-align: center;
    vertical-align: middle;
}