1 files changed, 31 insertions, 0 deletions
diff --git a/js/theme-switch.js b/js/theme-switch.js
new file mode 100644
index 00000000..4dddd304
--- /dev/null
+++ b/js/theme-switch.js
@@ -0,0 +1,31 @@
+document.addEventListener('DOMContentLoaded', () => {
+  const themeSwitch = document.getElementById('theme-switch-btn');
+  const prefersDarkScheme = window.matchMedia('(prefers-color-scheme: dark)');
+  
+  // 检查本地存储中的主题设置
+  const currentTheme = localStorage.getItem('theme');
+  if (currentTheme === 'dark') {
+    document.body.classList.add('dark-theme');
+    themeSwitch.querySelector('i').classList.replace('icon-moon', 'icon-sun');
+  } else if (currentTheme === 'light') {
+    document.body.classList.remove('dark-theme');
+  } else if (prefersDarkScheme.matches) {
+    document.body.classList.add('dark-theme');
+    themeSwitch.querySelector('i').classList.replace('icon-moon', 'icon-sun');
+  }
+  
+  // 切换主题
+  themeSwitch.addEventListener('click', (e) => {
+    e.preventDefault();
+    
+    if (document.body.classList.contains('dark-theme')) {
+      document.body.classList.remove('dark-theme');
+      localStorage.setItem('theme', 'light');
+      themeSwitch.querySelector('i').classList.replace('icon-sun', 'icon-moon');
+    } else {
+      document.body.classList.add('dark-theme');
+      localStorage.setItem('theme', 'dark');
+      themeSwitch.querySelector('i').classList.replace('icon-moon', 'icon-sun');
+    }
+  });
+}); 
+\ No newline at end of file