修改两个logo

src/components/course-item/course-item.vue

@@ -1,8 +1,10 @@
 <template>
 	<view class="course-item-box" @click="clickItem">
 		<view class="img-box-view">
-			<ImagePreview class="img-box" :imgId="itemInfo.imgId" :isCache="true" width="340" height="340"></ImagePreview>
+			
+			<ImagePreview class="img-box" :imgId="itemInfo.imgId" :isCache="true" width="340" height="340" mode="aspectFill"></ImagePreview>
 			<view class="item-grade">{{itemInfo.evalGrade}}</view>
+			<!-- <image class="item-grade" mode="aspectFill"></view> -->
 		</view>
 		<view class="cont-box">
 			<view class="item-title">{{itemInfo.crsName}}</view>
@@ -78,6 +80,7 @@
 		position: relative;
 		border-radius: 20rpx;
 		overflow: hidden;
+		box-shadow: 0 0 10rpx #c3c3c3;
 		.img-box{
 			width: 170rpx;
 			height: 170rpx;

src/components/nav-bar/nav-bar.vue

@@ -6,6 +6,8 @@
 </template>
 
 <script setup>
+	const windowInfo = uni.getWindowInfo()
+	
 	const props = defineProps({
 		is_fixed: {
 			type: Boolean,