feat(课程详情页): 重构课程详情页布局和交互逻辑

- 将课程介绍移至标签页并设为默认标签
- 新增主讲教师标签页展示讲师信息
- 优化课程大纲交互，增加点击跳转功能
- 调整底部操作按钮逻辑，区分购买和查看课程状态
- 移除冗余代码，简化页面结构

 <template>
   <AppLayout :rightContent="rightContent" :has-title="false">
-    <div class="pb-24">
+    <div class="pb-24 mb-6">
       <!-- Course Image -->
       <div class="mb-4">
         <img :src="course?.cover || 'https://cdn.ipadbiz.cn/mlaj/images/default_block.png'" :alt="course?.title"
@@ -34,10 +34,10 @@
       <!-- Course Main Content -->
       <div class="px-4">
         <!-- Course Details -->
-        <FrostedGlass class="mb-4 p-4 rounded-xl" v-if="course?.introduce">
+        <!-- <FrostedGlass class="mb-4 p-4 rounded-xl" v-if="course?.introduce">
           <h3 class="text-lg font-bold text-gray-800 mb-3">本课程介绍</h3>
           <p v-html="course?.introduce" class="text-gray-700 whitespace-pre-line"></p>
-        </FrostedGlass>
+        </FrostedGlass> -->
 
         <!-- Tab Navigation -->
         <FrostedGlass class="mb-6 rounded-xl overflow-hidden">
@@ -56,13 +56,31 @@
 
           <!-- Tab Content -->
           <div class="p-4">
-            <div v-if="activeTab === '课程特色'">
+            <!-- <div v-if="activeTab === '课程特色'">
               <div v-html="course?.feature"></div>
+            </div> -->
+
+            <div v-if="activeTab === '课程介绍'">
+              <p v-html="course?.introduce" class="text-gray-700 whitespace-pre-line"></p>
+            </div>
+
+            <div v-if="activeTab === '主讲教师'">
+              <div v-for="(item, index) in lecturers" :key="index" class="flex items-center" style="margin-bottom: 1rem;">
+                <div class="w-16 h-16 rounded-full overflow-hidden mr-4">
+                  <img :src="item?.photo || 'https://cdn.ipadbiz.cn/mlaj/images/default_block.png'" alt="lecturer"
+                    class="w-full h-full object-cover" @error="handleImageError" />
+                </div>
+                <div>
+                  <h4 class="font-bold text-gray-900">{{ item?.name }}</h4>
+                  <p class="text-sm text-gray-600">{{ item?.educational }}</p>
+                  <p class="text-xs text-gray-500 mt-1">{{ item?.introduce }}</p>
+                </div>
+              </div>
             </div>
 
             <div v-if="activeTab === '课程大纲'">
               <div class="space-y-4">
-                <div v-for="(item, index) in displayedSchedule" :key="index" class="border-l-2 border-green-500 pl-3">
+                <div v-for="(item, index) in displayedSchedule" :key="index" class="border-l-2 border-green-500 pl-3" @click="goToStudyDetail(item)">
                   <h4 class="font-medium text-gray-800">{{ item.title }}</h4>
                   <p class="text-sm text-gray-600 mt-1">{{ item.duration }}分钟 · {{ item.schedule_time }}个小节</p>
                 </div>
@@ -76,22 +94,22 @@
               </div>
             </div>
 
-            <div v-if="activeTab === '课程亮点'">
+            <!-- <div v-if="activeTab === '课程亮点'">
               <div class="space-y-3 text-gray-700">
                 <div v-html="course?.highlights"></div>
               </div>
-            </div>
+            </div> -->
 
-            <div v-if="activeTab === '学习目标'">
+            <!-- <div v-if="activeTab === '学习目标'">
               <div class="space-y-3 text-gray-700">
                 <div v-html="course?.learning_goal"></div>
               </div>
-            </div>
+            </div> -->
           </div>
         </FrostedGlass>
 
         <!-- lecturers Introduction -->
-        <FrostedGlass class="mb-6 p-4 rounded-xl" v-if="lecturers.length">
+        <!-- <FrostedGlass class="mb-6 p-4 rounded-xl" v-if="lecturers.length">
           <h3 class="text-lg font-bold text-gray-800 mb-3">主讲老师</h3>
           <div v-for="(item, index) in lecturers" :key="index" class="flex items-center" style="margin-bottom: 1rem;">
             <div class="w-16 h-16 rounded-full overflow-hidden mr-4">
@@ -104,11 +122,25 @@
               <p class="text-xs text-gray-500 mt-1">{{ item?.introduce }}</p>
             </div>
           </div>
-        </FrostedGlass>
+        </FrostedGlass> -->
 
         <!-- Student Reviews -->
         <FrostedGlass class="mb-6 p-4 rounded-xl">
-          <h3 class="text-lg font-bold text-gray-800 mb-3">学员评价</h3>
+          <div class="flex justify-between items-center mb-3">
+            <h3 class="text-lg font-bold text-gray-800">学员评价</h3>
+            <!-- 立即评论按钮 - 仅在已购买但未评价时显示 -->
+            <van-button
+              v-if="isPurchased && !isReviewed"
+              @click="showReviewPopup = true"
+              size="small"
+              round
+              color="linear-gradient(to right, #3b82f6, #2563eb)"
+              class="shadow-sm text-xs px-4 py-1.5 min-w-[80px] hover:shadow-md transition-all duration-200"
+            >
+              <van-icon name="edit" size="12" class="mr-1" />
+              立即评论
+            </van-button>
+          </div>
           <div class="flex items-center mb-3">
             <div class="flex items-center mr-2">
               <van-rate v-model="commentScore" readonly allow-half color="#facc15" void-color="#e5e7eb" size="20" />
@@ -182,7 +214,7 @@
           </button>
         </div>
         <div class="flex items-center">
-          <div class="mr-2">
+          <div v-if="!course?.is_buy" class="mr-2">
             <div class="text-red-500 font-bold">¥{{ course?.price || 0 }}</div>
             <div class="text-xs text-gray-400 line-through">
               ¥{{ Math.round((course?.price || 0) * 1.2) }}
@@ -192,13 +224,9 @@
             color="linear-gradient(to right, #22c55e, #16a34a)" class="shadow-md">
             {{ course?.price !== '0.00' ? '立即' : '免费' }}购买
           </van-button>
-          <van-button v-else-if="!isReviewed" @click="showReviewPopup = true" round block
-            color="linear-gradient(to right, #3b82f6, #2563eb)" class="shadow-md">
-            立即评论
-          </van-button>
-          <van-button v-else @click="router.push(`/courses/${course?.id}/reviews`)" round block
-            color="linear-gradient(to right, #6b7280, #4b5563)" class="shadow-md">
-            查看评论
+          <van-button v-else @click="router.push(`/studyCourse/${course?.id}`)" round block
+            color="linear-gradient(to right, #22c55e, #16a34a)" class="shadow-md">
+            查看课程
           </van-button>
         </div>
       </div>
@@ -235,7 +263,7 @@ const { currentUser } = useAuth()
 
 const course = ref(null)
 const lecturers = ref([])
-const activeTab = ref('课程特色')
+const activeTab = ref('课程介绍')
 // 是否收藏状态
 const isFavorite = ref(false)
 // 是否已购买状态
@@ -273,10 +301,11 @@ const curriculumItems = computed(() => {
   if (!course.value) return [];
 
   return [
-    { title: '课程特色', active: activeTab.value === '课程特色', show: !!course.value.feature },
+    { title: '课程介绍', active: activeTab.value === '课程介绍', show: !!course.value.introduce },
+    { title: '主讲教师', active: activeTab.value === '主讲教师', show: !!(lecturers.value && lecturers.value.length > 0) },
     { title: '课程大纲', active: activeTab.value === '课程大纲', show: !!(course.value.schedule && course.value.schedule.length > 0) },
-    { title: '课程亮点', active: activeTab.value === '课程亮点', show: !!course.value.highlights },
-    { title: '学习目标', active: activeTab.value === '学习目标', show: !!course.value.learning_goal },
+    // { title: '课程亮点', active: activeTab.value === '课程亮点', show: !!course.value.highlights },
+    // { title: '学习目标', active: activeTab.value === '学习目标', show: !!course.value.learning_goal },
   ].filter(item => item.show);
 });
 
@@ -409,6 +438,17 @@ const displayedSchedule = computed(() => {
 const toggleSchedule = () => {
   isScheduleExpanded.value = !isScheduleExpanded.value
 }
+
+// 跳转课程大纲
+const goToStudyDetail = (item) => {
+  console.warn(course.value);
+  // 如果没有购买过, 禁止操作
+  if (!course.value.is_buy) {
+    return;
+  }
+  // 跳转详情
+  router.push(`/studyDetail/${item.id}`)
+}
 </script>
 
 <style scoped>