.hover-read-btn {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 9999;
    background: #0073aa;
    color: white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}