.zs-captcha-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:99999;display:none;align-items:center;justify-content:center;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.5;box-sizing:border-box}
.zs-captcha-overlay *{box-sizing:border-box}
.zs-captcha-overlay.active{display:flex}
.zs-captcha-modal{background:#fff;border-radius:12px;width:380px;max-width:90vw;box-shadow:0 20px 60px rgba(0,0,0,.15);overflow:hidden}
.zs-captcha-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #eee}
.zs-captcha-header span{font-size:16px;font-weight:600;color:#222}
.zs-captcha-close{background:none;border:none;font-size:22px;color:#999;cursor:pointer;padding:0 4px;line-height:1}
.zs-captcha-close:hover{color:#333}
.zs-captcha-body{padding:24px 20px}
.zs-captcha-tip{font-size:14px;color:#666;margin:0 0 16px}
.zs-captcha-q-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.zs-captcha-question{background:#f0f4f8;padding:12px 20px;border-radius:8px;font-size:20px;font-weight:700;color:#2B7DE9;user-select:none;flex:1;text-align:center;letter-spacing:2px}
.zs-captcha-refresh{cursor:pointer;padding:8px;border-radius:6px;background:none;border:1px solid #ddd;display:flex;align-items:center;justify-content:center;transition:background .2s}
.zs-captcha-refresh:hover{background:#f0f4f8}
.zs-captcha-input{width:100%;padding:12px 14px;border:2px solid #e4e6ef;border-radius:8px;font-size:16px;text-align:center;outline:none;box-sizing:border-box;transition:border-color .2s}
.zs-captcha-input:focus{border-color:#2B7DE9}
.zs-captcha-error{font-size:12px;color:#f53f3f;margin:8px 0 0;min-height:16px}
.zs-captcha-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 20px;border-top:1px solid #eee}
.zs-captcha-btn{padding:8px 20px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}
.zs-captcha-btn.cancel{background:#f0f1f5;color:#5a5a72;border:none}
.zs-captcha-btn.cancel:hover{background:#e4e6ef}
.zs-captcha-btn.confirm{background:#2B7DE9;color:#fff;border:none}
.zs-captcha-btn.confirm:hover{background:#1a6ad4}
@media(max-width:480px){.zs-captcha-modal{width:auto;margin:0 16px}}
.zs-captcha-toast{position:fixed;top:0;left:0;width:100%;height:100%;z-index:100000;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.3);opacity:0;transition:opacity .3s;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.5;box-sizing:border-box}
.zs-captcha-toast *{box-sizing:border-box}
.zs-captcha-toast.active{opacity:1}
.zs-captcha-toast-box{background:#fff;border-radius:16px;padding:40px 48px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.15);transform:scale(.9);transition:transform .3s}
.zs-captcha-toast.active .zs-captcha-toast-box{transform:scale(1)}
.zs-captcha-toast-icon{width:56px;height:56px;margin:0 auto 16px}
.zs-captcha-toast-icon svg{width:100%;height:100%}
.zs-captcha-toast-msg{font-size:16px;color:#1f2937;line-height:1.6;max-width:300px}