feat(aigc): add image preview and improve detail layout

- restructure aigc detail page flex layout to separate preview and control sections
- update ResultPreview styles to fill full width and height
- add click-to-preview functionality for result images
- add auto-hide delay and fix state management for GiftPointsToast component
- adjust video component handling for fullscreen display mode

src/pages-aigc/detail/components/ResultPreview/index.vue

@@ -18,16 +18,23 @@
       auto-pause-if-navigate
       auto-pause-if-open-native
       play-btn-position="center"
-      object-fit="cover"
+      :object-fit="videoObjectFit"
       @play="handleVideoPlay"
       @waiting="handleVideoWaiting"
       @timeupdate="handleVideoTimeUpdate"
       @progress="handleVideoProgress"
       @loadedmetadata="handleVideoLoaded"
+      @fullscreenchange="handleVideoFullscreenChange"
       @ended="handleVideoEnded"
       @error="handleVideoError"
     />
-    <image v-else class="result-preview-image" :src="result.imageResultUrl" mode="aspectFill" />
+    <image
+      v-else
+      class="result-preview-image"
+      :src="result.imageResultUrl"
+      mode="aspectFill"
+      @tap="handlePreviewImage"
+    />
     <view v-if="showCaptionOverlay" class="result-preview-shade" />
 
     <view v-if="showCaptionOverlay" class="result-preview-caption">
@@ -76,10 +83,12 @@ const videoLoadVersion = ref(0);
 const isVideoLoading = ref(true);
 const isVideoEnded = ref(false);
 const isVideoError = ref(false);
+const isVideoFullscreen = ref(false);
 const hasVideoStarted = ref(false);
 const bufferedProgress = ref(0);
 
 const isVideo = computed(() => props.result.mediaType === "video");
+const videoObjectFit = computed(() => (isVideoFullscreen.value ? "contain" : "cover"));
 const videoRenderKey = computed(() => `${props.result.videoResultUrl || "video"}-${videoLoadVersion.value}`);
 const showCaptionOverlay = computed(
   () => !isVideo.value || (!hasVideoStarted.value && !isVideoEnded.value && !isVideoError.value)
@@ -90,6 +99,16 @@ const loadingText = computed(() =>
 
 const getVideoContext = () => uni.createVideoContext(videoId, instance?.proxy || instance);
 
+const handlePreviewImage = () => {
+  const imageUrl = String(props.result.imageResultUrl || "").trim();
+  if (isVideo.value || !imageUrl) return;
+
+  uni.previewImage({
+    current: imageUrl,
+    urls: [imageUrl],
+  });
+};
+
 const resetVideoState = () => {
   isVideoLoading.value = isVideo.value;
   isVideoEnded.value = false;
@@ -129,6 +148,10 @@ const handleVideoProgress = (event) => {
   }
 };
 
+const handleVideoFullscreenChange = (event) => {
+  isVideoFullscreen.value = Boolean(event?.detail?.fullScreen);
+};
+
 const handleVideoEnded = () => {
   isVideoLoading.value = false;
   isVideoEnded.value = true;

src/pages-aigc/detail/components/ResultPreview/styles/index.scss

@@ -1,7 +1,9 @@
 .result-preview {
   position: relative;
-  height: 360px;
+  width: 100%;
+  height: 100%;
   overflow: hidden;
+  box-sizing: border-box;
   border-radius: 26px;
   background: var(--result-accent, #0a4d46);
   color: #ffffff;

src/pages-aigc/detail/detail.vue

@@ -4,7 +4,8 @@
 
     <view class="aigc-detail-content">
       <template v-if="taskDetail">
-        <ResultPreview v-if="result.cover" :result="result" />
+        <ResultPreview v-if="result.cover" class="aigc-detail-preview" :result="result" />
+        <view class="aigc-detail-controls">
           <ResultMeta :items="metaItems" />
           <ResultActions :saving="isSaving" :media-type="result.mediaType" :share-ready="Boolean(shareKey)"
             :share-preparing="isPreparingShare" @save="handleSave" @prepare-share="handlePrepareShare" />
@@ -14,6 +15,7 @@
             <view class="aigc-detail-text-action" @tap="handleChangeTemplate">换个模板</view>
             <view class="aigc-detail-text-action" @tap="handleOpenRecords">历史记录</view>
           </view>
+        </view>
       </template>
     </view>
 

src/pages-aigc/detail/styles/index.scss

@@ -19,11 +19,25 @@
 .aigc-detail-content {
   flex: 1 1 auto;
   min-height: 0;
+  display: flex;
+  flex-direction: column;
   overflow: hidden;
   padding: 0 12px;
   box-sizing: border-box;
 }
 
+.aigc-detail-preview {
+  display: block;
+  flex: 1 1 500px;
+  width: 100%;
+  min-height: 360px;
+  max-height: 500px;
+}
+
+.aigc-detail-controls {
+  flex: 0 0 auto;
+}
+
 .aigc-detail-text-actions {
   height: 50px;
   display: grid;

src/pages-aigc/home/components/GiftPointsToast/index.vue

@@ -1,5 +1,5 @@
 <template>
-  <view v-if="visible" class="gift-points-toast" role="status">
+  <view v-if="displayVisible" class="gift-points-toast" role="status">
     <text class="gift-points-badge">{{ title }}</text>
     <text class="gift-points-message">{{ message }}</text>
     <view class="gift-points-close" @tap="handleClose">
@@ -9,11 +9,17 @@
 </template>
 
 <script setup>
-defineProps({
+import { onBeforeUnmount, onMounted, ref, watch } from "vue";
+
+const props = defineProps({
   visible: {
     type: Boolean,
     default: true,
   },
+  delay: {
+    type: Number,
+    default: 3000,
+  },
   title: {
     type: String,
     default: "400积分已到账",
@@ -25,11 +31,50 @@ defineProps({
 });
 
 const emit = defineEmits(["close", "update:visible"]);
+const displayVisible = ref(false);
+const mounted = ref(false);
+let showTimer = null;
+
+const clearShowTimer = () => {
+  if (showTimer) {
+    clearTimeout(showTimer);
+    showTimer = null;
+  }
+};
+
+const syncVisible = (visible) => {
+  clearShowTimer();
+  displayVisible.value = false;
+  if (!visible || !mounted.value) return;
+
+  showTimer = setTimeout(() => {
+    showTimer = null;
+    displayVisible.value = props.visible;
+  }, Math.max(0, props.delay));
+};
 
 const handleClose = () => {
+  clearShowTimer();
+  displayVisible.value = false;
   emit("update:visible", false);
   emit("close");
 };
+
+watch(
+  () => props.visible,
+  (visible) => {
+    syncVisible(visible);
+  }
+);
+
+onMounted(() => {
+  mounted.value = true;
+  syncVisible(props.visible);
+});
+
+onBeforeUnmount(() => {
+  clearShowTimer();
+});
 </script>
 
 <style scoped lang="scss">