style: 调整竖屏模式下的结果显示

- 竖屏时计算结果由一行改为两行，以避免在长文本下显示效果不佳的问题

src/components/ResultListItem.vue

@@ -1,10 +1,10 @@
 <template>
   <v-row class="px-4">
-    <v-col cols="8">
+    <v-col cols="12" md="8">
       <div class="text-h6 text-secondary-lighten-2 font-weight-bold">{{ label }}</div>
     </v-col>
-    <v-col class="d-flex flex-column align-end justify-center" cols="4">
-      <div class="text-h6 text-primary font-weight-bold">{{ value.value.toFixed(fixed ?? 2) }} {{ $t(`units.${value.unit}`) }}</div>
+    <v-col class="d-flex flex-column align-md-end justify-center" cols="12" md="4">
+      <div class="text-h4 text-md-h6 text-center text-primary font-weight-bold">{{ value.value.toFixed(fixed ?? 2) }} {{ $t(`units.${value.unit}`) }}</div>
     </v-col>
   </v-row>
 </template>