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src/App.vue

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+<template>
+  <div class="app-container">
+    <Sidebar />
+    <div class="main-content">
+      <router-view v-slot="{ Component }">
+        <transition name="fade" mode="out-in">
+          <component :is="Component" />
+        </transition>
+      </router-view>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import Sidebar from './components/Sidebar.vue'
+</script>
+
+<style>
+:root {
+  --primary-color: #007AFF;
+  --primary-hover: #0063CC;
+  --bg-light: #FBFBFD;
+  --sidebar-bg: #F8FAFD;
+  --text-main: #1D1D1F;
+  --text-sec: #86868B;
+  --border-color: #E5E5E7;
+  --card-shadow: 0 12px 30px rgba(0, 0, 0, 0.04);
+  --btn-shadow: 0 4px 12px rgba(0, 122, 255, 0.25);
+  --radius-card: 24px;
+  --radius-btn: 12px;
+}
+
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+  background-color: var(--bg-light);
+  color: var(--text-main);
+  -webkit-font-smoothing: antialiased;
+  overflow: hidden;
+}
+
+.app-container {
+  display: flex;
+  height: 100vh;
+  width: 100vw;
+  overflow: hidden;
+}
+
+.main-content {
+  flex: 1;
+  height: 100vh;
+  overflow-y: auto;
+  position: relative;
+}
+
+/* 页面切换动画 */
+.fade-enter-active,
+.fade-leave-active {
+  transition: opacity 0.2s ease, transform 0.2s ease;
+}
+
+.fade-enter-from {
+  opacity: 0;
+  transform: translateY(10px);
+}
+
+.fade-leave-to {
+  opacity: 0;
+  transform: translateY(-10px);
+}
+</style>