legado/modules/web/src/main.js

import { createApp } from "vue";
import App from "./App.vue";
import router from "@/router";
import store from "@/store";
import "element-plus/theme-chalk/dark/css-vars.css"

createApp(App).use(store).use(router).mount("#app");

// 书架 同步Element PLUS 夜间模式
watch(
    () => useBookStore().isNight,
    (isNight) => {
        if (isNight) {
            document.documentElement.classList.add("dark");
        } else {
            document.documentElement.classList.remove("dark");
        }
    }
)