fix(StudyCoursePage): 调整页面滚动和高度计算的延迟逻辑

为了解决页面滚动和高度计算时可能出现的布局未完全渲染的问题，增加了 setTimeout 延迟逻辑，并调整了滚动偏移量，确保滚动定位准确

@@ -139,20 +139,22 @@ const tabRefs = ref([]);
 
 // 计算topWrapperHeight的函数
 const updateTopWrapperHeight = () => {
-    nextTick(() => {
-        const topWrapper = document.querySelector('.top-wrapper');
-        if (topWrapper) {
-            // 断开之前的observer连接
-            if (resizeObserver.value) {
-                resizeObserver.value.disconnect();
+    setTimeout(() => {
+        nextTick(() => {
+            const topWrapper = document.querySelector('.top-wrapper');
+            if (topWrapper) {
+                // 断开之前的observer连接
+                if (resizeObserver.value) {
+                    resizeObserver.value.disconnect();
+                }
+                // 使用 ResizeObserver 监听元素尺寸变化
+                resizeObserver.value = new ResizeObserver(() => {
+                    topWrapperHeight.value = `${topWrapper.offsetHeight}px`;
+                });
+                resizeObserver.value.observe(topWrapper);
             }
-            // 使用 ResizeObserver 监听元素尺寸变化
-            resizeObserver.value = new ResizeObserver(() => {
-                topWrapperHeight.value = `${topWrapper.offsetHeight}px`;
-            });
-            resizeObserver.value.observe(topWrapper);
-        }
-    });
+        });
+    }, 500)
 };
 
 const course = ref([]);
@@ -251,16 +253,19 @@ const getTransitionTiming = (current, previous) => {
 // 修改handleTabChange函数
 const handleTabChange = (name) => {
     previousTab.value = activeTab.value;
-    nextTick(() => {
-        const element = document.getElementById(name);
-        if (element) {
-            const topOffset = element.offsetTop - parseInt(topWrapperHeight.value);
-            window.scrollTo({
-                top: topOffset,
-                behavior: 'smooth'
-            });
-        }
-    });
+    let offset = 100; // 调整偏移量, 配合目录的高度
+    setTimeout(() => {
+        nextTick(() => {
+            const element = document.getElementById(name);
+            if (element) {
+                const topOffset = element.offsetTop - offset - parseInt(topWrapperHeight.value);
+                window.scrollTo({
+                    top: topOffset,
+                    behavior: 'smooth'
+                });
+            }
+        });
+    }, 100);
 };
 
 // 课程数据