#p2-arrow {
    position: absolute;
    bottom: 80px;
    left: 30px;
    width: auto;
    height: auto;
    /* Limit width to avoid it being huge if the original image is large */
    max-width: 15%; 
    object-fit: contain;
    z-index: 102; /* Above text/bg */
    opacity: 0;
    visibility: hidden;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.5)); /* Consistent shadow */
    pointer-events: auto; /* Ensure clickable */
    cursor: pointer;
}

/* Non-WeChat adjustment for P2 Arrow */
body.not-wechat #p2-arrow {
    bottom: 15px;
}