.display-center {
    align-items: center;
}

.mysiye-img {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 30px;
    overflow: hidden;
    margin-left: 100px;
    box-shadow: 0px 2px 4px 0px rgba(0,0,0,0.23);
}

.mysiye-img > image {
    width: 100%;
    height: 100%;
}

.h-100 {
    height: 100% !important;
}

.main-section {
    position: relative;
    height: 100vh;
}

.main-section-bg1 {
    background-image: url('../picture/bg1.png');
    background-size: cover;
    background-repeat: no-repeat;
}

.main-section-bg2 {
    background-image: url('../picture/bg2.png');
    background-size: cover;
    background-repeat: no-repeat;
}

.main-section-bg3 {
    background-image: url('../picture/bg3.png');
    background-size: cover;
    background-repeat: no-repeat;
}

.app-name {
    font-weight: bold;
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.app-intro {
    font-size: 24px;
    margin-bottom: 1.5rem;
    line-height: 40px;
}

.app-download {
    color: #ffffff;
    background-color: #3D58F3;
    border-color: transparent !important;
    padding: 10px 24px;
    border-width: 2px;
    border-radius: 25px;
}

.app-back {
    color: #3D58F3;
    border: 2px solid #3D58F3;
    padding: 10px 24px;
    border-radius: 25px;
    text-decoration: none;
}

.app-back:hover {
    text-decoration: none;
    color: #3D58F3;
}

.slogan-title {
    font-size: 1.5rem;
}

.slogan-desc {
    margin-bottom: 1rem;
    font-size: 24px;
}

.slogan-desc {
    width: calc(100% - 100px);
    line-height: 30px;
}

.bottom-brand img {
    margin-right: 10px;
}

.bottom-brand {
    font-weight: bold;
    font-size: 1.5rem !important;
    color: #DCB6DA !important;
}

.wx-qr {
    width: 100px;
    object-fit: cover;
    margin-left: 20px;
}

.erji-logo {
    object-fit: cover;
}

.mobile_show {
    display: none;
}

@media (max-width: 1440px) {
    .mysiye-img {
        width: 250px;
    }
}

@media only screen and (max-width: 992px) {

    .main-section {
        min-height: 100vh;
        height: auto !important;
    }

    .mobile-fist-section {
        padding-top: 100px;
    }

    .mobile_show {
        display: block;
    }

    .mysiye-img {
        margin:  0 auto;
        width: 230px;
        padding: 30px 0;
    }

    .btm_container {
        padding-top: 2em !important;
        text-align: center;
    }

    .bottom-contact-column {
        display: flex;
        justify-content: center;
    }
}