初始化项目，自 v1.7.1 版本开始

src/App.vue

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+<script setup lang="ts">
+import { isDark } from '@/utils/is'
+import { useAppStore } from '@/store/modules/app'
+import { useDesign } from '@/hooks/web/useDesign'
+import { CACHE_KEY, useCache } from '@/hooks/web/useCache'
+
+const { getPrefixCls } = useDesign()
+const prefixCls = getPrefixCls('app')
+const appStore = useAppStore()
+const currentSize = computed(() => appStore.getCurrentSize)
+const greyMode = computed(() => appStore.getGreyMode)
+const { wsCache } = useCache()
+
+// 根据浏览器当前主题设置系统主题色
+const setDefaultTheme = () => {
+  let isDarkTheme = wsCache.get(CACHE_KEY.IS_DARK)
+  if (isDarkTheme === null) {
+    isDarkTheme = isDark()
+  }
+  appStore.setIsDark(isDarkTheme)
+}
+setDefaultTheme()
+</script>
+<template>
+  <ConfigGlobal :size="currentSize">
+    <RouterView :class="greyMode ? `${prefixCls}-grey-mode` : ''" />
+  </ConfigGlobal>
+</template>
+<style lang="scss">
+$prefix-cls: #{$namespace}-app;
+.size {
+  width: 100%;
+  height: 100%;
+}
+html,
+body {
+  padding: 0 !important;
+  margin: 0;
+  overflow: hidden;
+  @extend .size;
+
+  #app {
+    @extend .size;
+  }
+}
+.#{$prefix-cls}-grey-mode {
+  filter: grayscale(100%);
+}
+</style>