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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #1a0a14;
}

.desktop {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    color: #fff;
}

/* ============ 整体场景轮播（左右滑动） ============ */
.scene-carousel {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.scene-track {
    display: flex;
    width: 300%;
    height: 100%;
    transition: transform 0.7s ease;
    will-change: transform;
}

.scene-track.no-transition {
    transition: none;
}

.scene-track[data-idx="0"] {
    transform: translateX(0);
}

.scene-track[data-idx="1"] {
    transform: translateX(-33.3333%);
}

.scene-track[data-idx="2"] {
    transform: translateX(-66.6666%);
}

.scene-slide {
    position: relative;
    width: 33.3333%;
    height: 100%;
    flex-shrink: 0;
}

.scene-slide .bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.scene-slide .slogan-img {
    position: absolute;
    left: 6vw;
    top: 18vh;
    height: 36vh;
    max-height: 380px;
    max-width: 42vw;
    width: auto;
    object-fit: contain;
    z-index: 1;
    filter: drop-shadow(0 4px 16px rgba(255, 105, 180, 0.5));
}

.scene-slide .hero-img {
    position: absolute;
    right: 4vw;
    bottom: 0;
    height: 92vh;
    max-width: 50vw;
    width: auto;
    object-fit: contain;
    object-position: right bottom;
    z-index: 1;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.55));
}

/* ============ 固定 UI 叠加层（不参与滑动） ============ */
.overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    pointer-events: none;
}

.overlay .top,
.overlay .qr-block {
    pointer-events: auto;
}

/* 顶部导航：半透明深色蒙版条，紧贴顶部、居中收窄 */
.top {
    position: absolute;
    top: 0;
    left: 12vw;
    right: 12vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1vh 1.8vw;
    background: rgba(69, 69, 69, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-top: none;
    border-radius: 0 0 18px 18px;
}

.logo {
    height: 6vh;
    max-height: 64px;
    width: auto;
    object-fit: contain;
}

.contact {
    display: flex;
    align-items: center;
    gap: 1.2vw;
}

.nav-btn {
    height: clamp(38px, 4.2vh, 52px);
    width: auto;
    object-fit: contain;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
}

.nav-btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* nav 按钮之间的四点分隔符 */
.dot-sep {
    display: inline-flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    width: 3px;
    height: 20px;
    flex-shrink: 0;
}

.dot-sep i {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    display: block;
}

/* QR 块（固定在左下）：左侧二维码 + 右侧 qr-pic 横向并排 */
.qr-block {
    position: absolute;
    left: 7vw;
    bottom: 6vh;
    display: flex;
    align-items: center;
    gap: 1vw;
}

.qrcode-box {
    flex-shrink: 0;
    height: clamp(140px, 16vh, 200px);
    aspect-ratio: 1 / 1;
    background: #fff;
    padding: 6px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.qr-pic {
    display: block;
    height: clamp(140px, 16vh, 200px);
    width: auto;
    object-fit: contain;
}

#qrcode {
    width: 100%;
    height: 100%;
}

#qrcode img,
#qrcode canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* ============ 响应式 ============ */
@media (max-width: 1280px) {
    .scene-slide .slogan-img {
        height: 30vh;
        left: 5vw;
    }

    .qr-block {
        left: 5vw;
    }
}

@media (max-height: 760px) {
    .scene-slide .slogan-img {
        top: 14vh;
        height: 30vh;
    }
}