/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #fff;
}

.page-container {
    position: relative;
    width: 100%;
    max-width: 1680px;
    margin: 0 auto;
    overflow: hidden;
}

.bg-wrapper {
    position: relative;
    width: 100%;
    font-size: 0;
    line-height: 0;
}

.bg-segment {
    display: block;
    width: 100%;
    height: auto;
}

.elem {
    position: absolute;
    top: 0;
    left: 0;
    height: auto;
    display: block;
}

@media (max-width: 750px) {
    .page-container {
        max-width: none;
    }
}