body img {
    -webkit-user-drag: none;
}

.picn-copy-notice {
    position: fixed;
    z-index: 999999;
    max-width: 300px;
    padding: 10px 14px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.88);
    color: #fff;
    font-size: 14px;
    line-height: 1.4;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 180ms ease, transform 180ms ease;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.picn-copy-notice.is-visible {
    opacity: 1;
    transform: translateY(0);
}