* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #0b0101;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    user-select: none;
    -webkit-user-select: none;
}

/* bg 为 1920×1080 全幅设计图，挂真实窗口 cover 铺满，不进舞台 */
.desktop {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #0b0101 url("../images/desktop/bg.js") no-repeat center center / cover;
}

/* 1920×1080 设计舞台，JS 按 min(宽比,高比) 缩放居中，任何窗口比例不破版 */
.content {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 1920px;
    height: 1080px;
    transform: translate(-50%, -50%) scale(var(--pageScale, 1));
    transform-origin: center center;
}

.titleCard {
    position: absolute;
    left: 50px;
    top: 80px;
    width: 757px;
}

/* ===== 右上三胶囊：靠右锚定，未配置的隐藏后其余向右收拢 ===== */
.ctaBar {
    position: absolute;
    right: 50px;
    top: 50px;
    display: flex;
}

.ctaBtn {
    height: 60px;
    cursor: pointer;
    transition: filter 0.2s ease;
}

.ctaBtn:hover {
    filter: brightness(1.25);
}

/* flex gap 在 Chromium<84 被忽略，间距用 margin */
.ctaBtn + .ctaBtn {
    margin-left: 24px;
}

.liuyan {
    position: absolute;
    left: 1390px;
    top: 183px;
    width: 476px;
}

.dlCard {
    position: absolute;
    left: 1407px;
    top: 587px;
    width: 442px;
}

#qrcode {
    position: absolute;
    left: 0;
    top: 0;
    width: 180px;
    height: 180px;
    padding: 16px;
    background: #fff;
    border-radius: 12px;
}

.subTitle {
    position: absolute;
    left: 50px;
    top: 729px;
    width: 790px;
}

/* 封面条切图四周带 14px 外发光留白，定位按设计位（50,823）各减 14 */
.coverStrip {
    position: absolute;
    left: 36px;
    top: 809px;
    width: 1848px;
}