diff --git a/client/src/components/base/AppStack.vue b/client/src/components/base/AppStack.vue
index fcdc35d..bf0621d 100644
--- a/client/src/components/base/AppStack.vue
+++ b/client/src/components/base/AppStack.vue
@@ -3,27 +3,17 @@ import { computed } from 'vue'
 
 const props = withDefaults(
   defineProps<{
-    /** 主轴方向；默认纵向 */
+    /** 单行横向 / 单列纵向；默认纵向。响应式由使用处自行决定传 row 还是 column */
     direction?: 'row' | 'column'
     /**
-     * 子项间距。兼容三种写法：
-     * - token 名：space-3 / space-4 / space-5 …
-     * - 纯数字字符串：'12' → 12px
-     * - 其它 CSS 值：'12px 16px'、'var(--space-3)' 等原样透传
-     * 缺省：纵向 space-5（20px），横向 space-4（16px）
+     * 子项间距：token 名（space-3…）或纯数字字符串（'12' → 12px）。
+     * 缺省：纵向 space-5（20px）、横向 space-4（16px）。
      */
     gap?: string
-    /** 交叉轴对齐 */
-    align?: 'start' | 'center' | 'end' | 'stretch' | 'baseline'
-    /** 主轴对齐 */
-    justify?: 'start' | 'center' | 'end' | 'between' | 'around' | 'evenly'
-    /** 是否允许换行（横向时使用） */
-    wrap?: boolean
   }>(),
-  { direction: 'column', gap: '', align: 'stretch', justify: 'start', wrap: false }
+  { direction: 'column', gap: '' }
 )
 
-/** token 名 / 纯数字 → 兼容的 CSS gap；其它原样透传 */
 const gapStyle = computed(() => {
   const raw = props.gap.trim()
   if (!raw) return props.direction === 'row' ? 'var(--space-4)' : 'var(--space-5)'
@@ -36,12 +26,7 @@ const gapStyle = computed(() => {
 <template>
   <div
     class="app-stack"
-    :class="{
-      'app-stack--row': direction === 'row',
-      'app-stack--wrap': wrap,
-      [`app-stack--align-${align}`]: align !== 'stretch',
-      [`app-stack--justify-${justify}`]: justify !== 'start'
-    }"
+    :class="{ 'app-stack--row': direction === 'row' }"
     :style="{ '--stack-gap': gapStyle }"
   >
     <slot />
@@ -49,6 +34,7 @@ const gapStyle = computed(() => {
 </template>
 
 <style scoped>
+/* 默认样式：纵向、stretch、start；特殊布局由使用页绑 class 覆盖 */
 .app-stack {
   display: flex;
   flex-direction: column;
@@ -60,34 +46,4 @@ const gapStyle = computed(() => {
 .app-stack--row {
   flex-direction: row;
 }
-.app-stack--wrap {
-  flex-wrap: wrap;
-}
-.app-stack--align-center {
-  align-items: center;
-}
-.app-stack--align-start {
-  align-items: flex-start;
-}
-.app-stack--align-end {
-  align-items: flex-end;
-}
-.app-stack--align-baseline {
-  align-items: baseline;
-}
-.app-stack--justify-center {
-  justify-content: center;
-}
-.app-stack--justify-end {
-  justify-content: flex-end;
-}
-.app-stack--justify-between {
-  justify-content: space-between;
-}
-.app-stack--justify-around {
-  justify-content: space-around;
-}
-.app-stack--justify-evenly {
-  justify-content: space-evenly;
-}
 </style>
diff --git a/client/src/views/mock/MockView.vue b/client/src/views/mock/MockView.vue
index 51b6eda..ff08097 100644
--- a/client/src/views/mock/MockView.vue
+++ b/client/src/views/mock/MockView.vue
@@ -120,7 +120,12 @@ async function confirmRemove() {
 
       <template v-else>
         <!-- 最近成绩 / 目标分差 / 较上次变化 -->
-        <section class="mock-page__stats">
+        <AppStack
+          class="mock-page__stats"
+          :class="{ 'is-col': isMobile }"
+          :direction="isMobile ? 'column' : 'row'"
+          gap="space-4"
+        >
           <StatCard
             label="最近成绩"
             :value="`${latest?.total ?? 0} 分`"
@@ -143,7 +148,7 @@ async function confirmRemove() {
             :tone="deltaTone"
             :sub-tone="deltaTone"
           />
-        </section>
+        </AppStack>
 
         <!-- 成绩趋势 -->
         <AppCard title="行测成绩趋势" icon="chart">
@@ -158,10 +163,10 @@ async function confirmRemove() {
         <AppCard title="模块均分对比" icon="chart">
           <ul class="mock-page__modules">
             <li v-for="m in moduleAverages" :key="m.module" class="mock-page__module">
-              <div class="mock-page__module-head">
+              <AppStack direction="row" class="mock-page__module-head">
                 <span class="mock-page__module-name">{{ m.module }}</span>
                 <strong class="mock-page__module-value">{{ m.average }}<small> 分</small></strong>
-              </div>
+              </AppStack>
               <div class="mock-page__module-track">
                 <span class="mock-page__module-fill" :style="{ width: `${Math.min(100, m.average)}%` }" />
               </div>
@@ -186,14 +191,14 @@ async function confirmRemove() {
                 </div>
                 <p v-if="r.note" class="mock-page__record-note">{{ r.note }}</p>
               </div>
-              <div class="mock-page__record-actions">
+              <AppStack direction="row" gap="space-1" class="mock-page__record-actions">
                 <AppButton variant="ghost" size="md" @click="goEdit(r)">
                   <AppIcon name="pen" :size="15" />编辑
                 </AppButton>
                 <AppButton variant="ghost" size="md" class="is-danger" @click="removing = r">
                   <AppIcon name="close" :size="15" />删除
                 </AppButton>
-              </div>
+              </AppStack>
             </li>
           </ul>
         </AppCard>
@@ -206,22 +211,22 @@ async function confirmRemove() {
         确定要删除「{{ removing.name }}（{{ formatDateShort(removing.date) }}，{{ removing.total }} 分）」吗？删除后趋势与模块分析将同步更新，且不可恢复。
       </p>
       <template #footer>
-        <div class="mock-page__confirm-actions">
+        <AppStack direction="row" gap="space-3" class="mock-page__confirm-actions">
           <AppButton variant="ghost" @click="removing = null">取消</AppButton>
           <AppButton variant="danger" :loading="deleting" @click="confirmRemove">
             {{ deleting ? '删除中…' : '确认删除' }}
           </AppButton>
-        </div>
+        </AppStack>
       </template>
     </AppModal>
   </AppStack>
 </template>
 
 <style scoped>
-.mock-page__stats {
-  display: grid;
-  grid-template-columns: repeat(3, 1fr);
-  gap: var(--space-4);
+/* PC 横向等宽（移动端 is-col 时自然撑满不限制高度） */
+.mock-page__stats:not(.is-col) > :deep(*) {
+  flex: 1 1 0;
+  min-width: 0;
 }
 .mock-page__sub {
   margin: 0 0 var(--space-3);
@@ -245,7 +250,6 @@ async function confirmRemove() {
   gap: var(--space-4);
 }
 .mock-page__module-head {
-  display: flex;
   align-items: baseline;
   justify-content: space-between;
   margin-bottom: var(--space-2);
@@ -335,8 +339,6 @@ async function confirmRemove() {
   color: var(--text-muted);
 }
 .mock-page__record-actions {
-  display: flex;
-  gap: var(--space-1);
   flex: none;
 }
 .mock-page__record-actions .is-danger {
@@ -349,15 +351,10 @@ async function confirmRemove() {
   color: var(--text-primary);
 }
 .mock-page__confirm-actions {
-  display: flex;
   justify-content: flex-end;
-  gap: var(--space-3);
 }
 
 @media (max-width: 767px) {
-  .mock-page__stats {
-    grid-template-columns: 1fr;
-  }
   .mock-page__record {
     flex-direction: column;
   }