.flex-caption {
    width: 96%;
    padding: 2%;
    left: 0;
    bottom: 0;
    background: rgba(0,0,0,.5);
    color: #fff;
    text-shadow: 0 -1px 0 rgba(0,0,0,.3);
    font-size: 14px;
    line-height: 18px;
}

.gotop.gotop-fixed {
    position: fixed;
    bottom: 24px;
    right: 24px;
    left: auto;
    margin-left: 0;
    z-index: 999;
    width: 48px;
    height: 48px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--site-primary, #7b5ea7);
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    transition: bottom 0.2s, color 0.2s;
}

.gotop.gotop-fixed:hover {
    bottom: 28px;
    color: var(--site-primary-dark, #5d3f8f);
    text-decoration: none;
}