feat: 添加 StyleLayer 组件，展示 @layer 优先级规则及样式示例；新增 style.page.vue 页面

src/components/StyleLayer.vue

@@ -0,0 +1,81 @@
+<template>
+  <div b="1px solid #ccc" p="10px" mt="10px">
+    <div class="layer-demo">这是一个测试@layer的元素</div>
+    <div class="layer-nested">这是测试嵌套layer的元素</div>
+
+    <div class="layer-explanation">
+      <h3>@layer 优先级规则：</h3>
+      <ol>
+        <li>后定义的layer比先定义的layer优先级高</li>
+        <li>在同一个layer中遵循正常的CSS优先级规则</li>
+        <li>没有在任何layer中的样式优先级高于所有layer</li>
+      </ol>
+    </div>
+  </div>
+</template>
+
+<style lang="css">
+/* 测试 @layer */
+
+/* 声明layer的顺序决定了优先级 - 越后声明的优先级越高 */
+@layer base, components, utilities;
+
+/* base layer 包含基础样式 */
+@layer base {
+  .layer-demo {
+    color: blue;
+    font-size: 18px;
+    padding: 10px;
+    border: 1px solid #ccc;
+    margin: 10px 0;
+  }
+
+  .layer-nested {
+    color: blue;
+    padding: 10px;
+    border: 1px solid #ccc;
+    margin: 10px 0;
+  }
+}
+
+/* components layer 包含组件样式 */
+@layer components {
+  .layer-demo {
+    color: red; /* 这个会覆盖base中的blue，因为components在base之后声明 */
+    background-color: #f0f0f0;
+  }
+}
+
+/* utilities layer 包含工具类样式 */
+@layer utilities {
+  .layer-demo {
+    font-weight: bold;
+    color: green; /* 这个会覆盖components中的red，因为utilities优先级更高 */
+  }
+}
+
+/* 嵌套layer的示例 */
+@layer components {
+  @layer special {
+    .layer-nested {
+      color: purple;
+      font-weight: bold;
+    }
+  }
+
+  /* components.base 比 components.special 优先级低 */
+  @layer base {
+    .layer-nested {
+      background-color: #eaeaea;
+    }
+  }
+}
+
+/* 不在任何layer中的样式优先级最高 */
+.layer-explanation {
+  margin: 20px 0;
+  padding: 15px;
+  background-color: #f8f8f8;
+  border-left: 4px solid #42b983;
+}
+</style>

src/pages/Tool/fonts.page.vue

@@ -13,16 +13,14 @@
       ><br />https://unocss-preset-chinese-playground.vercel.app/
     </p>
 
-    <div :class="$style.hero" mt-2>
+    <div mt-2 b="1px solid pink">
       <h1><i>🔌</i> Vite Plugin Webfont DL <i>⚡</i></h1>
       <h2>Fonts are downloaded directly from Google Fonts</h2>
-      <pre>{{ JSON.stringify({ $style }, null, 2) }}</pre>
     </div>
   </div>
 </template>
 
-<style module>
-/* https://cn.vuejs.org/api/sfc-css-features#css-modules */
+<style scoped>
 h1 {
   font-family: 'Press Start 2P', cursive;
   color: #646cff;
@@ -32,8 +30,4 @@ h2 {
   font-family: 'Fira Code', monospace;
   background-color: #42b983;
 }
-
-.hero {
-  border: 1px solid #42b983;
-}
 </style>

src/pages/Tool/style.page.vue

@@ -0,0 +1,16 @@
+<script setup lang="ts"></script>
+
+<template>
+  <div :class="$style.hero" mt-2>
+    <pre>{{ JSON.stringify({ $style }, null, 2) }}</pre>
+  </div>
+  <StyleLayer />
+</template>
+
+<style module>
+/* https://cn.vuejs.org/api/sfc-css-features#css-modules */
+
+.hero {
+  border: 1px solid #42b983;
+}
+</style>

typed-router.d.ts

@@ -30,6 +30,7 @@ declare module 'vue-router/auto-routes' {
     'ToolFonts': RouteRecordInfo<'ToolFonts', '/Tool/fonts', Record<never, never>, Record<never, never>>,
     'ToolI18n': RouteRecordInfo<'ToolI18n', '/Tool/I18n', Record<never, never>, Record<never, never>>,
     'ToolIcons': RouteRecordInfo<'ToolIcons', '/Tool/Icons', Record<never, never>, Record<never, never>>,
+    'ToolStyle': RouteRecordInfo<'ToolStyle', '/Tool/style', Record<never, never>, Record<never, never>>,
     'ToolTsEnumUtil': RouteRecordInfo<'ToolTsEnumUtil', '/Tool/ts-enum-util', Record<never, never>, Record<never, never>>,
     'UIComponentsAntdV': RouteRecordInfo<'UIComponentsAntdV', '/UI-components/AntdV', Record<never, never>, Record<never, never>>,
     'UIComponentsInfiniteLoading': RouteRecordInfo<'UIComponentsInfiniteLoading', '/UI-components/infinite-loading', Record<never, never>, Record<never, never>>,