/* 客户端下载卡片 · 科技蓝覆盖层 */
#downloads .download-card{
    --dl-brand: #024EFB;
    --dl-brand-rgb: 2, 78, 251;
    position: relative;
    overflow: hidden;
    padding: 30px 24px;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
#downloads .download-card-main{
    position: relative;
    z-index: 1;
    text-align: center;
    transition: opacity 0.28s ease, transform 0.28s ease, filter 0.28s ease;
}
#downloads .download-card .bi-phone{
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* 适配本机角标 */
#downloads .download-fit-badge{
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    height: 22px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    background: linear-gradient(135deg, #024EFB 0%, #3D7AFF 100%);
    box-shadow: 0 4px 12px rgba(2, 78, 251, 0.35);
    pointer-events: none;
}
#downloads .download-card.is-native{
    box-shadow: 0 30px 60px rgba(12, 36, 64, 0.08), 0 0 0 2px rgba(2, 78, 251, 0.28);
}
#downloads .download-card.is-native:hover,
#downloads .download-card.is-native.is-open{
    box-shadow: 0 40px 70px rgba(12, 36, 64, 0.12), 0 0 0 2px rgba(2, 78, 251, 0.35);
}

/* 覆盖层 */
#downloads .download-overlay{
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 16px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(10px) scale(1.02);
    transition: opacity 0.32s ease, visibility 0.32s ease, transform 0.32s ease;
    background:
        linear-gradient(145deg, rgba(var(--dl-brand-rgb), 0.96) 0%, rgba(1, 40, 150, 0.94) 55%, rgba(0, 24, 96, 0.96) 100%);
    color: #fff;
}
#downloads .download-overlay::before{
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.35;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 22px 22px;
}
#downloads .download-overlay::after{
    content: '';
    position: absolute;
    left: -20%;
    top: 0;
    width: 40%;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.14), transparent);
    transform: skewX(-18deg);
    animation: dl-scan 2.8s linear infinite;
    opacity: 0;
}
#downloads .download-overlay-inner{
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}
#downloads .download-overlay-title{
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-shadow: 0 0 18px rgba(120, 180, 255, 0.55);
}
#downloads .download-overlay-actions{
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
#downloads .download-overlay-btn{
    display: block;
    width: 100%;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.12);
    color: #fff !important;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.3;
    text-decoration: none !important;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    box-shadow: 0 0 0 1px rgba(120, 180, 255, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.18);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
#downloads .download-overlay-btn:hover{
    background: rgba(255, 255, 255, 0.95);
    color: var(--dl-brand) !important;
    border-color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(0, 20, 80, 0.25);
}
#downloads .download-overlay-btn.is-recommended{
    background: rgba(255, 255, 255, 0.96);
    color: var(--dl-brand) !important;
    border-color: #fff;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.4), 0 8px 18px rgba(0, 20, 80, 0.22);
}
#downloads .download-overlay-btn.is-recommended:hover{
    background: #fff;
    color: #0140d6 !important;
}
#downloads .download-rec-tag{
    display: inline-block;
    margin-left: 6px;
    padding: 1px 6px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.4;
    vertical-align: middle;
    color: #fff;
    background: linear-gradient(135deg, #024EFB 0%, #3D7AFF 100%);
}
#downloads .download-overlay-btn.is-recommended .download-rec-tag{
    background: linear-gradient(135deg, #024EFB 0%, #3D7AFF 100%);
    color: #fff;
}
#downloads .download-overlay-btn:hover .download-rec-tag{
    background: linear-gradient(135deg, #024EFB 0%, #3D7AFF 100%);
    color: #fff;
}
#downloads .download-qr{
    width: 96px;
    height: 96px;
    object-fit: contain;
    border-radius: 10px;
    padding: 6px;
    background: #fff;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35), 0 8px 20px rgba(0, 20, 80, 0.25);
}
#downloads .download-overlay-tip{
    margin: 0;
    font-size: 12px;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.92);
    max-width: 180px;
}

/* hover / 点击展开 */
#downloads .download-card:hover .download-overlay,
#downloads .download-card.is-open .download-overlay{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}
#downloads .download-card:hover .download-overlay::after,
#downloads .download-card.is-open .download-overlay::after{
    opacity: 1;
}
#downloads .download-card:hover .download-card-main,
#downloads .download-card.is-open .download-card-main{
    opacity: 0.12;
    filter: blur(1px);
    transform: scale(0.96);
}

@keyframes dl-scan{
    0%{ left: -30%; }
    100%{ left: 120%; }
}

@media (max-width: 767px){
    #downloads .download-card{
        min-height: 180px;
        padding: 24px 16px;
    }
    #downloads .download-qr{
        width: 84px;
        height: 84px;
    }
}