feat: 物品规则页左右布局，接单平台统计条精简

- 物品规则改为左右布局：左侧编辑/新建表单（加宽、一屏展示无滚动条），右侧可滚动规则列表
- 列表顶部新增搜索（规则标识/商品/SKU/店铺），点击行快速载入编辑，当前行高亮
- 接单平台顶部统计改为单行紧凑统计条，减少页面高度

apps/frontend/src/styles/main.css

@@ -1556,6 +1556,27 @@ select {
   gap: 5px;
 }
 
+/* 接单平台顶部紧凑统计条 */
+.platform-summary-strip-card {
+  width: 100%;
+}
+
+.platform-summary-strip-card .ant-card-body {
+  padding: 8px 16px !important;
+}
+
+.platform-summary-strip-item {
+  font-size: 13px;
+  color: rgba(0, 0, 0, 0.65);
+  white-space: nowrap;
+}
+
+.platform-summary-strip-item strong {
+  font-size: 16px;
+  margin-left: 6px;
+  color: rgba(0, 0, 0, 0.88);
+}
+
 .metric-card span,
 .metric-card small {
   color: #6b7280;
@@ -2373,9 +2394,66 @@ select {
   width: 100%;
 }
 
+/* 物品规则：左侧编辑表单 + 右侧可滚动列表 */
+.product-rules-layout {
+  display: flex;
+  gap: 16px;
+  align-items: flex-start;
+}
+
+.product-rules-form-card {
+  width: 560px;
+  flex-shrink: 0;
+}
+
+/* 左侧表单一屏展示，不出现滚动条 */
+.product-rules-form-card .ant-card-body {
+  overflow: visible;
+}
+
+.product-rules-form-card .worker-rule-form .ant-form-item {
+  margin-bottom: 14px;
+}
+
+.product-rules-form-card .worker-rule-form .ant-form-item-label {
+  padding-bottom: 2px;
+}
+
+.product-rules-form-card .worker-rule-form .ant-input-textarea textarea {
+  min-height: 56px !important;
+}
+
+.product-rules-list-card {
+  flex: 1;
+  min-width: 0;
+}
+
+.product-rules-list-card .ant-card-body {
+  max-height: calc(100vh - 150px);
+  overflow-y: auto;
+}
+
+.product-rules-list-card .ant-table-wrapper {
+  max-height: calc(100vh - 230px);
+}
+
+.product-rule-row-active > td {
+  background: #e6f4ff !important;
+}
+
+@media (max-width: 1024px) {
+  .product-rules-layout {
+    flex-direction: column;
+  }
+
+  .product-rules-form-card {
+    width: 100%;
+  }
+}
+
 .worker-rule-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
   gap: 0 14px;
 }