      localStorage.setItem('theme', 'light');
                if(themeToggleButton) themeToggleButton.textContent = '切换暗色';
            }
            const iframes = document.querySelectorAll('iframe');
            iframes.forEach(iframe => {
                if (iframe.contentWindow) {
                    iframe.contentWindow.postMessage({ type: 'themeChange', theme: theme }, '*');
                }
            });
        }

        if (currentTheme) {
            applyTheme(currentThem