.captcha-popup{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.7);z-index:1000}.captcha-popup.show{display:flex;align-items:center;justify-content:center}.captcha-modal{background:#fff;padding:30px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,0.3);max-width:400px;width:90%;text-align:center}.captcha-close{float:right;font-size:24px;cursor:pointer;color:#999}.captcha-close:hover{color:#f44336}.captcha-title{margin-bottom:20px;color:#333}.captcha-popup__button{padding:8px 16px;background:#999;color:#fff;border:none;border-radius:4px;cursor:pointer}