/* Prepend "@" to image titles/captions in the gallery */
.gt3pg_title::before,
.gt3pg_title.gt3pg_clip::before {
    content: "@ ";  /* Or use "\0040 " for the @ symbol as a Unicode escape */
    font-weight: bold;  /* Optional: Make it stand out */
    color: inherit;     /* Match the caption color */
}

/* If captions are in a wrapper, target the inner text */
.gt3pg_caption_wrap .gt3pg_title::before {
    content: "@ ";
}