.desktop {
    color: #fff;
    width: 100%;
    height: 100%;
    font-size: 0px;
    overflow: hidden;
}

* {
    -webkit-user-drag: none;
    box-sizing: border-box;
}

.desktop .fixed-bg {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    object-fit: cover;
}

.desktop .fixed-bg * {
    object-fit: cover;
}

.content {
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.top {
    padding: 20px 10vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.desktop .contact {
    display: flex;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10vw;
    background-color: #202425;

}

.contact img {
    width: 10vw;
    cursor: pointer;
}

.slg {
    position: absolute;
    top: 0;
    width: 90%;
    height: 100%;
    left: 30%;
    transform: translateX(-35%);
    object-fit: contain;
}

.box-left {
    flex: 1;
    display: flex;
    justify-content: space-around;
    align-items: center;
    overflow: hidden;
}

.main-left {
    height: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.downloadArea {
    position: absolute;
    top: 8vw;
    right: 3vw;
}

.content .qrcode-box {
    font-size: 0;
    display: inline-block;
    width: 180px;
    height: 180px;
    box-sizing: border-box;
    border-radius: 2px;
}

.inside {
    border-radius: 10px;
    background: #fff;
    height: 100%;
}


.btn-right {
    margin-left: 2vw;
}

#qrcode img {
    visibility: visible !important;
}

.btn-box {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: space-around;
}

.btn-box .btn {
    display: inline-block;
    border: none;
    outline: none;
    cursor: pointer;
    transition: all .3s ease;
    background: transparent;
    font-size: 24px;
}

.btn-box img {
    width: 100%;
}


.btn-box .btn:hover {
    transform: translateY(-4px) scale(1.05)
}


.box-right {
    position: relative;
    top: -10vw;
    left: 6vw;
}

.box-right .main {
    width: 40vw;
    height: 100%;
    object-fit: contain
}


/* 仅标题跑马灯 */
.title-marquee {
    position: absolute;
    bottom: 3vw;
    width: 100%;
    height: 30%;
    overflow: hidden;
}

.title-marquee .track {
    width: 200%;
    display: flex;
    animation: titleScroll 20s linear infinite;
}

.title-marquee img.title {
    width: 40%;
    height: 100%;
    object-fit: cover;
}

@keyframes titleScroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}