.chinese-captcha-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);display:flex;justify-content:center;align-items:center;z-index:9999;opacity:0;visibility:hidden;transition:opacity 0.3s,visibility 0.3s}
.chinese-captcha-modal.active{opacity:1;visibility:visible}
.chinese-captcha-container{background:#fff;border-radius:12px;width:90%;max-width:480px;padding:24px;box-shadow:0 10px 40px rgba(0,0,0,0.2)}
.chinese-captcha-header{position:relative;text-align:center;margin-bottom:20px}
.chinese-captcha-back{position:absolute;left:0;top:0;color:#666;text-decoration:none;font-size:0.9rem}
.chinese-captcha-back:hover{color:#2196F3}
.chinese-captcha-header h3{margin:0 0 8px;font-size:1.3rem;color:#333}
.chinese-captcha-prompt{margin:0 0 12px;color:#666;font-size:0.95rem}
.chinese-captcha-target{font-weight:bold;color:#2196F3}
.chinese-captcha-toolbar{display:flex;justify-content:center;align-items:center;gap:12px}
.chinese-captcha-refresh{width:36px;height:36px;border:1px solid #ddd;border-radius:8px;background:#fff;cursor:pointer;font-size:1.2rem;transition:all 0.2s}
.chinese-captcha-refresh:hover{background:#f5f5f5;border-color:#2196F3}
.chinese-captcha-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:16px;background:#f8f9fa;border-radius:8px;margin-bottom:16px}
.chinese-captcha-img-card{aspect-ratio:1;background:#fff;border:2px solid #e0e0e0;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.08)}
.chinese-captcha-img-card:hover{border-color:#2196F3;box-shadow:0 4px 12px rgba(33,150,243,0.2)}
.chinese-captcha-img-card.selected{border-color:#2196F3;background:#e3f2fd;box-shadow:0 0 0 3px rgba(33,150,243,0.3)}
.chinese-captcha-img-inner{font-size:3rem;line-height:1}
.chinese-captcha-actions{display:flex;gap:12px;justify-content:center}
.chinese-captcha-btn{padding:10px 24px;border:none;border-radius:6px;font-size:1rem;cursor:pointer;transition:all 0.2s}
.chinese-captcha-btn.cancel{background:#eee;color:#666}
.chinese-captcha-btn.cancel:hover{background:#e0e0e0}
.chinese-captcha-btn.submit{background:#2196F3;color:#fff}
.chinese-captcha-btn.submit:hover:not(:disabled){background:#1976D2}
.chinese-captcha-btn.submit:disabled{opacity:0.5;cursor:not-allowed}
.chinese-captcha-feedback{margin-top:12px;text-align:center;min-height:20px;font-size:0.9rem}
.chinese-captcha-feedback.error{color:#f44336}
.chinese-captcha-feedback.success{color:#4CAF50}
@media (max-width:500px){.chinese-captcha-img-inner{font-size:2.5rem}
.chinese-captcha-grid{gap:8px;padding:12px}
}