add entrance transition

src/pages/user/UserInvitePoster.vue

@@ -1,10 +1,14 @@
 <template>
 	<div class="poster-page">
-		<section class="poster-wrap">
+		<section class="poster-wrap" v-entrance-transition>
 			<img v-if="posterImage" class="poster" :src="posterImage" alt="邀请注册海报" />
 			<div v-else class="empty" v-text="message" />
 		</section>
-		<div v-if="posterImage" class="actions">
+		<div
+			class="tips gray"
+			v-entrance-transition="70"
+		>微信内可能无法发起下载海报，可长按保存为图片、转发连接或使用默认浏览器打开</div>
+		<div v-if="posterImage" class="actions" v-entrance-transition="140">
 			<t-button
 				class="button bg-white"
 				variant="outline"
@@ -18,7 +22,7 @@
 				block
 				:loading="isDownloading"
 				@click="savePoster"
-			>保存海报</t-button>
+			>下载海报</t-button>
 		</div>
 	</div>
 </template>
@@ -110,6 +114,11 @@ onMounted(() => {
 		}
 	}
 
+	.tips {
+		font-size: .875rem;
+		text-indent: 2em;
+	}
+
 	.empty {
 		padding: 5rem 1rem;
 		color: var(--td-text-color-secondary);