下载带水印图片'; resultMeta.textContent = '原图 ' + mainImg.width + '×' + mainImg.height + ' + ' + (mode === 'text' ? '文字' : '图片') + '水印 (位置: ' + document.getElementById('position').value + ', 不透明度: ' + (opacity*100) + '%)'; resultArea.classList.add('show'); btnMain.disabled = false; btnMain.textContent = orig; } catch(err) { showError('处理失败: ' + err.message); btnMain.disabled = false; btnMain.textContent = orig; } }); btnClear.addEventListener('click', function() { form.reset(); ov.textContent = '70'; modeSel.dispatchEvent(new Event('change')); clearError(); clearResult(); }); })();