From 974f05719e1c40bbf916f6eb5cc019450a680aaa Mon Sep 17 00:00:00 2001
From: mini2024 <mini2024@oo1.dev>
Date: Sat, 22 Mar 2025 18:29:23 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B7=BB=E5=8A=A0=20StyleLayer=20?=
 =?UTF-8?q?=E7=BB=84=E4=BB=B6=EF=BC=8C=E5=B1=95=E7=A4=BA=20@layer=20?=
 =?UTF-8?q?=E4=BC=98=E5=85=88=E7=BA=A7=E8=A7=84=E5=88=99=E5=8F=8A=E6=A0=B7?=
 =?UTF-8?q?=E5=BC=8F=E7=A4=BA=E4=BE=8B=EF=BC=9B=E6=96=B0=E5=A2=9E=20style.?=
 =?UTF-8?q?page.vue=20=E9=A1=B5=E9=9D=A2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/components/StyleLayer.vue | 81 +++++++++++++++++++++++++++++++++++
 src/pages/Tool/fonts.page.vue | 10 +----
 src/pages/Tool/style.page.vue | 16 +++++++
 typed-router.d.ts             |  1 +
 4 files changed, 100 insertions(+), 8 deletions(-)
 create mode 100644 src/components/StyleLayer.vue
 create mode 100644 src/pages/Tool/style.page.vue

diff --git a/src/components/StyleLayer.vue b/src/components/StyleLayer.vue
new file mode 100644
index 0000000..cdbb34a
--- /dev/null
+++ b/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>
diff --git a/src/pages/Tool/fonts.page.vue b/src/pages/Tool/fonts.page.vue
index 1444a3f..1748774 100644
--- a/src/pages/Tool/fonts.page.vue
+++ b/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>
diff --git a/src/pages/Tool/style.page.vue b/src/pages/Tool/style.page.vue
new file mode 100644
index 0000000..02a77c3
--- /dev/null
+++ b/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>
diff --git a/typed-router.d.ts b/typed-router.d.ts
index f719194..40f6ff7 100644
--- a/typed-router.d.ts
+++ b/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>>,