* {
    margin: 0;
    padding: 0;
}

body {
    font-size: 14px;
    min-height: 100vh;
}

.main {
    max-width: 1000px;
    width: 100%;
    box-sizing: border-box;
}

.main-box {
    max-width: 520px;
    box-sizing: border-box;
    width: 100%;
}

.header, .footer {
    min-height: 86px;
    max-width: 1000px;
}

.logo {
    max-height: 64px;
}

.app-desc:last-child {
    margin-bottom: 55px;
}

.app-desc > div:first-child {
    margin-right: 40px;
}

.app-desc > div:last-child {
    margin-left: 40px;
}

@media (max-width: 576px) {
    body {
        padding: 10px;
    }

    .sm-hide {
        display: none;
    }

    .sm-flex-column {
        display: flex;
        flex-direction: column !important;
    }

    .sm-mt-1 {
        margin-top: 10px;
    }

    .content-box {
        padding: 25px !important;
    }

    .app-desc {
        margin-top: 20px !important;
    }

    .app-desc > div {
        margin-left: 10px !important;
        margin-right: 10px !important;
        width: 100%;
        flex: auto !important;
        box-shadow: none !important;
        padding: 0 !important;
    }

    .app-desc > div:last-child {
        margin-top: 20px !important;
    }

    .app-protect {
        padding: 0 10px !important;
    }

    .footer {
        padding: 20px 10px !important;
    }

    .app-container {
        margin-top: 0 !important;
        margin-bottom: 0 !important;
    }

    .app-banner {
        margin-top: 0 !important;
    }
}