feat: 概览页移除类目分布，检索按钮与输入框同高对齐

frontend/src/views/Overview.vue

@@ -9,7 +9,6 @@ import {
   FileTextOutlined,
   QuestionCircleOutlined,
   ReloadOutlined,
-  AppstoreOutlined,
   SearchOutlined,
   SettingOutlined
 } from '@ant-design/icons-vue'
@@ -147,36 +146,6 @@ const cards = computed(() => {
   })
 })
 
-const categoryBars = computed(() => {
-  const categories = statsData.value?.categories || {}
-  const entries = Object.entries(categories).map(([name, count]) => ({ name, count }))
-  entries.sort((a, b) => b.count - a.count)
-  const max = entries.reduce((acc, item) => Math.max(acc, item.count), 1)
-  const total = entries.reduce((acc, item) => acc + item.count, 0)
-  return entries.map((item) => ({
-    ...item,
-    percent: Math.round((item.count / max) * 100),
-    ratio: total ? Math.round((item.count / total) * 100) : 0
-  }))
-})
-
-const gradientColors = [
-  'linear-gradient(90deg, #1677ff 0%, #4096ff 100%)',
-  'linear-gradient(90deg, #722ed1 0%, #9254de 100%)',
-  'linear-gradient(90deg, #13c2c2 0%, #36cfc9 100%)',
-  'linear-gradient(90deg, #fa8c16 0%, #ffa940 100%)',
-  'linear-gradient(90deg, #52c41a 0%, #73d13d 100%)',
-  'linear-gradient(90deg, #eb2f96 0%, #f759ab 100%)',
-  'linear-gradient(90deg, #fa541c 0%, #ff7a45 100%)',
-  'linear-gradient(90deg, #2f54eb 0%, #597ef7 100%)',
-  'linear-gradient(90deg, #08979c 0%, #13c2c2 100%)',
-  'linear-gradient(90deg, #c41d7f 0%, #eb2f96 100%)'
-]
-
-function barGradient(index) {
-  return gradientColors[index % gradientColors.length]
-}
-
 async function loadStats() {
   isLoading.value = true
   try {
@@ -310,38 +279,6 @@ onMounted(() => {
       </div>
     </div>
 
-    <!-- 类目分布 -->
-    <div class="overview__section">
-      <div class="overview__section-head">
-        <h3 class="overview__subtitle">
-          <AppstoreOutlined />
-          <span>类目分布</span>
-        </h3>
-        <span v-if="categoryBars.length" class="text-muted overview__section-meta">
-          共 {{ categoryBars.length }} 个类目
-        </span>
-      </div>
-      <div v-if="categoryBars.length === 0" class="overview__empty text-muted">暂无数据</div>
-      <div v-else class="overview__bars">
-        <div
-          v-for="(bar, idx) in categoryBars"
-          :key="bar.name"
-          class="overview__bar-row"
-          :title="`${bar.name}: ${bar.count} (${bar.ratio}%)`"
-        >
-          <span class="overview__bar-name" :title="bar.name">{{ bar.name }}</span>
-          <div class="overview__bar-track">
-            <div
-              class="overview__bar-fill"
-              :style="{ width: bar.percent + '%', background: barGradient(idx) }"
-            />
-          </div>
-          <span class="overview__bar-count">{{ bar.count }}</span>
-          <span class="overview__bar-ratio">{{ bar.ratio }}%</span>
-        </div>
-      </div>
-    </div>
-
     <!-- 检索参数设置弹窗 -->
     <a-modal
       v-model:open="paramsVisible"
@@ -402,7 +339,7 @@ onMounted(() => {
 
 .overview__search-bar {
   display: flex;
-  align-items: center;
+  align-items: stretch;
   justify-content: center;
   gap: 12px;
   max-width: 760px;
@@ -412,14 +349,22 @@ onMounted(() => {
 .overview__search-form {
   flex: 1;
   min-width: 0;
+  display: flex;
+  align-items: stretch;
 }
 
 .overview__search-form-item {
+  flex: 1;
   margin-bottom: 0;
 }
 
+.overview__search-form-item .ant-form-item-control {
+  height: 100%;
+}
+
 .overview__search-input {
   font-size: 16px;
+  height: 40px;
 }
 
 .overview__search-params {
@@ -489,94 +434,7 @@ onMounted(() => {
   color: #1f2937;
 }
 
-.overview__section {
-  margin-top: 8px;
-}
-
-.overview__section-head {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  margin-bottom: 12px;
-}
-
-.overview__subtitle {
-  font-size: 14px;
-  font-weight: 600;
-  color: #374151;
-  margin: 0 0 12px;
-  display: flex;
-  align-items: center;
-  gap: 6px;
-}
-
-.overview__section-meta {
-  font-size: 12px;
-}
-
-.overview__empty {
-  text-align: center;
-  padding: 32px 0;
-}
-
-.overview__bars {
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-}
-
-.overview__bar-row {
-  display: flex;
-  align-items: center;
-  font-size: 13px;
-  cursor: default;
-}
-
-.overview__bar-name {
-  width: 180px;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  color: #374151;
-  flex: 0 0 auto;
-}
-
-.overview__bar-track {
-  flex: 1;
-  background: #f3f4f6;
-  border-radius: 4px;
-  height: 18px;
-  margin: 0 10px;
-  overflow: hidden;
-}
-
-.overview__bar-fill {
-  height: 100%;
-  border-radius: 4px;
-  min-width: 2px;
-  transition: width 0.4s ease;
-}
-
-.overview__bar-count {
-  width: 48px;
-  text-align: right;
-  color: #1f2937;
-  font-weight: 600;
-  flex: 0 0 auto;
-}
-
-.overview__bar-ratio {
-  width: 48px;
-  text-align: right;
-  color: #6b7280;
-  font-size: 12px;
-  flex: 0 0 auto;
-}
-
 @media (max-width: 768px) {
-  .overview__bar-name {
-    width: 120px;
-  }
   .overview__search-bar {
     flex-direction: column;
   }