refactor: 删除不再使用的图像文件，更新引导组件以支持垂直偏移功能

src/components/Guide/GuideSteps.vue

@@ -12,6 +12,7 @@
           :show-skip="currentStep < totalSteps"
           :current-step="currentStep"
           :total-steps="totalSteps"
+          :position-offset-y="props.positionOffsetY"
           @next="handleNext"
           @skip="handleSkip"
           @complete="handleComplete"
@@ -27,8 +28,16 @@
                 :total-steps="totalSteps"
               />
             </div>
-            <!-- 兼容原有的配置形式 -->
-            <div v-else v-html="currentStepContent"></div>
+            <!-- 兼容原有的配置形式：也包裹 GuideStepsItem，获得继续按钮 -->
+            <GuideStepsItem
+              v-else
+              :is-last-step="currentStep >= totalSteps"
+              :current-step="currentStep"
+              :total-steps="totalSteps"
+              @continue="handleNext"
+            >
+              {{ currentStepContent }}
+            </GuideStepsItem>
           </template>
         </GuideDragon>
       </div>
@@ -40,6 +49,7 @@
 import { ref, computed, useSlots, onMounted, onUnmounted, reactive } from 'vue'
 import SpotlightOverlay from './SpotlightOverlay.vue'
 import GuideDragon from './GuideDragon.vue'
+import GuideStepsItem from './GuideStepsItem.vue'
 
 interface GuideStep {
   id: string
@@ -63,6 +73,8 @@ interface Props {
   highlightPadding?: number
   /** 高亮圆角，默认16 */
   highlightRadius?: number
+  /** 垂直偏移（仅Y轴），支持 number(px) 或 '10%'/'120px' */
+  positionOffsetY?: number | string
 }
 
 interface Emits {
@@ -78,7 +90,8 @@ const props = withDefaults(defineProps<Props>(), {
   autoPlayInterval: 0,
   highlightSelector: null,
   highlightPadding: 8,
-  highlightRadius: 16
+  highlightRadius: 16,
+  positionOffsetY: '50%'
 })
 
 const emit = defineEmits<Emits>()
@@ -138,7 +151,7 @@ const currentStepContent = computed(() => {
   if (!step) return ''
 
   if (!step.title) {
-    return `<p>${step.content}</p>`
+    return `${step.content}`
   }
 
   return `