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

* {
    -webkit-user-drag: none
}

.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 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* 顶部深色到底部透明的渐变（为下方阴影留空间） */
    background-image: linear-gradient(to bottom,
            rgba(0, 0, 0, 1) 0%,
            rgba(0, 0, 0, 1) 60%,
            rgba(0, 0, 0, 0) 100%);
    position: relative;
}

/* 底部向灰色过渡的阴影条，增强层次感 */
.top::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    /* 向下延伸一点覆盖分界线 */
    width: 100%;
    height: 60px;
    /* 灰色过渡带的高度，可按需调整 */
    background: linear-gradient(to bottom,
            rgba(0, 0, 0, 0.65) 0%,
            rgba(0, 0, 0, 0.35) 45%,
            rgba(99, 97, 97, 0.85) 100%);
    pointer-events: none;
}

.toppic {
    padding: 0 8vw;
}

.modol {
    width: 100%;
    height: 65%;
    object-fit: contain;
}

.desktop .contact {
    display: flex;
}

.downloadArea {
    display: flex;
    justify-content: center;
    align-items: center;
}

.content .qrcode-box {
    font-size: 0;
    display: inline-block;
    width: 130px;
    height: 130px;
    /* 外层红色容器，用渐变增强层次 */
    background: linear-gradient(180deg, #ff4a43 0%, #eb332e 100%);
    box-sizing: border-box;
    border-radius: 14px;
    padding: 6px; /* 形成白色内边距 */
    box-shadow: 0 18px 28px -14px rgba(0,0,0,0.7); /* 底部柔和阴影 */
}

.inside {
    border-radius: 12px;
    height: 100%;
    background-color: #fff;
    padding: 6px; /* 让二维码不要贴边 */
    box-sizing: border-box;
    overflow: hidden; /* 保持圆角裁切 */
}

/* 统一二维码的圆角与铺满展示 */
.inside canvas,
.inside img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 8px;
}

.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)
}