feat: introduce message popup component

frontend_nuxt/components/MessagePopup.vue

@@ -0,0 +1,74 @@
+<template>
+  <BasePopup :visible="visible" @close="close">
+    <div class="message-popup">
+      <div class="message-popup-title">📨 站内信上线啦</div>
+      <div class="message-popup-text">现在可以在右上角使用站内信功能</div>
+      <div class="message-popup-actions">
+        <div class="message-popup-close" @click="close">知道了</div>
+        <div class="message-popup-button" @click="gotoMessage">去看看</div>
+      </div>
+    </div>
+  </BasePopup>
+</template>
+
+<script setup>
+import BasePopup from '~/components/BasePopup.vue'
+
+defineProps({
+  visible: { type: Boolean, default: false },
+})
+const emit = defineEmits(['close'])
+
+const gotoMessage = () => {
+  emit('close')
+  navigateTo('/message-box', { replace: true })
+}
+const close = () => emit('close')
+</script>
+
+<style scoped>
+.message-popup {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  text-align: center;
+  gap: 10px;
+  min-width: 200px;
+}
+
+.message-popup-title {
+  font-size: 18px;
+  font-weight: bold;
+  margin-bottom: 10px;
+}
+
+.message-popup-actions {
+  margin-top: 10px;
+  display: flex;
+  flex-direction: row;
+  gap: 20px;
+}
+
+.message-popup-button {
+  background-color: var(--primary-color);
+  color: #fff;
+  padding: 8px 16px;
+  border-radius: 8px;
+  cursor: pointer;
+}
+
+.message-popup-button:hover {
+  background-color: var(--primary-color-hover);
+}
+
+.message-popup-close {
+  cursor: pointer;
+  color: var(--primary-color);
+  display: flex;
+  align-items: center;
+}
+
+.message-popup-close:hover {
+  text-decoration: underline;
+}
+</style>