修复部分样式

src/components/AiStep/AiStep.vue

@@ -1,5 +1,5 @@
 <template>
-  <section class="AiStep flex start" :class="{active:!!index&&active==index}">
+  <section class="AiStep flex start" :class="{active}">
     <div class="leftPane mar-r32">
       <div class="num" v-text="stepIndex"/>
       <div v-if="!isLast" class="stepLine fill"/>
@@ -18,7 +18,7 @@ export default {
     index: {default: null},
   },
   computed: {
-    active: v => v.activeStep,
+    active: v => v.activeStep == v.stepIndex,
     stepIndex: v => {
       const index = v.$parent.items.findIndex(e => e == v._uid)
       return index > -1 ? index + 1 : ""