修正讲解列表入口返回规则

src/utils/hostEnvironment.ts

@@ -43,6 +43,28 @@ export const isEmbeddedInWechatMiniProgram = () => {
   return /miniProgram/i.test(window.navigator?.userAgent || '')
 }
 
+type WechatMiniProgramNavigationBridge = {
+  navigateBack?: (options: { delta: number }) => void
+}
+
+export const navigateBackToWechatMiniProgram = () => {
+  if (!isEmbeddedInWechatMiniProgram() || typeof window === 'undefined') return false
+
+  const bridge = (window as Window & {
+    wx?: { miniProgram?: WechatMiniProgramNavigationBridge }
+  }).wx?.miniProgram
+
+  if (typeof bridge?.navigateBack !== 'function') return false
+
+  try {
+    bridge.navigateBack({ delta: 1 })
+    return true
+  } catch (error) {
+    console.error('返回小程序失败:', error)
+    return false
+  }
+}
+
 export const isWechatMiniProgramRuntime = () => (
   isNativeWechatMiniProgram() || isEmbeddedInWechatMiniProgram()
 )