.install-app-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border: 0;
    border-radius: 12px;
    background: #111827;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.install-app-btn:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.install-app-btn:active {
    transform: translateY(0);
}

.install-hint {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 420px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
    z-index: 9999;
    animation: installHintSlideUp 0.25s ease;
}

.install-hint-content {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
}

.install-icon {
    flex-shrink: 0;
    font-size: 20px;
    line-height: 1;
    margin-top: 2px;
}

.install-text {
    flex: 1;
}

.install-text strong {
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
    color: #111827;
}

.install-text p {
    margin: 0;
    font-size: 14px;
    line-height: 1.45;
    color: #4b5563;
}

.install-close {
    flex-shrink: 0;
    border: 0;
    background: transparent;
    color: #6b7280;
    font-size: 16px;
    cursor: pointer;
    padding: 2px;
    line-height: 1;
}

.install-close:hover {
    color: #111827;
}

.hidden {
    display: none;
}

@keyframes installHintSlideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 18px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@media (min-width: 992px) {
    #installBtn{
        display: none!important;
    }
}