#ai_login_dialog {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(0, 0, 0, .5);
}
#ai_login_dialog .ai_login_content {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    padding: 40px 25px 25px;
    box-sizing: border-box;
    border-radius: 15px;
    background: #fff;
    color: #333;
    text-align: center;
    line-height: 28px;
}
#ai_login_dialog .ai_login_close {
    position: absolute;
    top: 8px;
    right: 12px;
    border: 0;
    background: transparent;
    font-size: 28px;
    color: #666;
    cursor: pointer;
}
#ai_login_dialog .ai_login_qr_box {
    width: 180px;
    height: 180px;
    margin: 0 auto 15px;
}
#ai_login_dialog .ai_login_tip {
    font-size: 13px;
    color: #999;
}
body.live_aihelp_page .ai_model_box {
    z-index: 10000;
}