.captcha-container{background:var(--surface,#f8f9fa);border:2px solid var(--border,#e0e0e0);border-radius:12px;padding:20px;margin:20px 0;transition:all 0.3s ease}.captcha-container:hover{border-color:var(--primary,#ff914d);box-shadow:0 4px 12px rgba(255,145,77,0.1)}.captcha-header{display:flex;align-items:center;gap:8px;margin-bottom:15px;color:var(--text-primary,#1a1a1a);font-weight:600;font-size:16px}.captcha-header i{color:var(--primary,#ff914d);font-size:22px}.captcha-content{display:flex;flex-direction:column;gap:15px}.captcha-image{background:white;border-radius:8px;padding:15px;text-align:center;border:1px solid var(--border,#e0e0e0)}.captcha-image img{max-width:100%;height:auto;border-radius:4px;filter:contrast(1.1)}.captcha-question{font-size:15px;color:var(--text-secondary,#666);font-weight:500}.captcha-question label{display:block}.captcha-input-group{display:flex;gap:10px;align-items:stretch}.captcha-input{flex:1;padding:12px 15px;border:2px solid var(--border,#e0e0e0);border-radius:8px;font-size:16px;transition:all 0.3s ease;background:white;color:var(--text-primary,#1a1a1a)}.captcha-input:focus{outline:none;border-color:var(--primary,#ff914d);box-shadow:0 0 0 3px rgba(255,145,77,0.1)}.captcha-refresh-btn{padding:12px 16px;background:var(--primary,#ff914d);border:none;border-radius:8px;color:white;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center}.captcha-refresh-btn:hover{background:var(--primary-dark,#e08b00);transform:translateY(-2px);box-shadow:0 4px 12px rgba(255,145,77,0.3)}.captcha-refresh-btn:active{transform:translateY(0)}.captcha-refresh-btn i{font-size:20px}.captcha-refresh-btn.spinning i{animation:spin 0.8s linear infinite}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.captcha-error{background:#fee;color:#c00;padding:12px 15px;border-radius:8px;border-left:4px solid #c00;margin-top:10px;font-size:14px;display:none}.dark .captcha-container{background:#2d2d2d;border-color:#404040}.dark .captcha-header{color:#e0e0e0}.dark .captcha-question{color:#b0b0b0}.dark .captcha-input{background:#1a1a1a;border-color:#404040;color:#e0e0e0}.dark .captcha-input:focus{border-color:#ff914d}.dark .captcha-image{background:#1a1a1a;border-color:#404040}[dir="rtl"] .captcha-error{border-left:none;border-right:4px solid #c00}@media (max-width:600px){.captcha-container{padding:15px}.captcha-input-group{flex-direction:column}.captcha-refresh-btn{width:100%}}