更新地区选择功能：调整当前选择显示位置，优化选择逻辑

pages/seller/index.wxml

@@ -534,13 +534,12 @@
         
 
         <view style="font-size: 28rpx; font-weight: 500; color: #333; margin-bottom: 12rpx; margin-left: 10rpx;">地区</view>
-<view 
+        <view bindtap="openCreateRegionModal" style="width: 100%; height: 90rpx; line-height: 90rpx; padding: 0 24rpx; font-size: 30rpx; border: 2rpx solid #eee; border-radius: 12rpx; box-sizing: border-box; margin: 0 auto 30rpx; display: block; background: white; position: relative; z-index: 1;">
-  class="region-picker input"
+          <view style="display: flex; justify-content: space-between; align-items: center;">
-  bindtap="openCreateRegionModal"
+            <text>{{newSupply.region || '请选择省市区'}}</text>
-  style="width: 100%; height: 90rpx; line-height: 90rpx; padding: 0 24rpx; font-size: 30rpx; border: 2rpx solid #eee; border-radius: 12rpx; box-sizing: border-box; margin: 0 auto 30rpx; display: block;"
+            <text style="color: #999;">▼</text>
->
+          </view>
-  <text>{{newSupply.region || '请选择省市区'}}</text>
+        </view>
-</view>
         
         <view style="display: flex; justify-content: space-between; margin-top: 20rpx; margin-bottom: 20rpx; gap: 20rpx;">
           <button bindtap="hideModal" style="flex: 1; height: 90rpx; line-height: 90rpx; background-color: #f5f5f5; color: #666; font-size: 30rpx; border-radius: 12rpx; margin: 0; display: flex; align-items: center; justify-content: center;">取消</button>
@@ -857,7 +856,7 @@
   </view>
 
   <!-- 地区选择弹窗 -->
-  <view class="region-select-modal" wx:if="{{showRegionSelectModal}}" style="position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); display: flex; justify-content: center; z-index: 9999;" catchtouchmove="true">
+  <view class="region-select-modal" wx:if="{{showRegionSelectModal}}" style="position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); display: flex; justify-content: center; z-index: 9999;">
     <view style="position: fixed; bottom: 0; left: 0; right: 0; background: white; border-radius: 20rpx 20rpx 0 0; max-height: 80vh;">
       <!-- 顶部操作栏：取消和确定按钮 -->
       <view style="padding: 20rpx; display: flex; justify-content: space-between; align-items: center; border-bottom: 1rpx solid #eee;">
@@ -865,44 +864,80 @@
         <view bindtap="confirmRegionSelection" style="font-size: 32rpx; color: #07c160; padding: 10rpx 20rpx;">确定</view>
       </view>
       
-      <!-- 搜索框区域 -->
+      <!-- 搜索框 -->
-      <view style="padding: 20rpx;">
+      <view style="padding: 12rpx 20rpx; border-bottom: 1rpx solid #eee;">
-        <view style="position: relative; background: #f5f5f5; border-radius: 40rpx; padding: 0 30rpx;">
+        <view class="search-box-compact">
+          <text class="search-icon-text">🔍</text>
           <input 
-            type="text" 
+            class="search-input-compact"
-            placeholder="搜索地区" 
+            placeholder="搜索地区"
-            value="{{currentRegionMode === 'create' ? regionSearchKeyword : editRegionSearchKeyword}}" 
+            value="{{currentRegionMode === 'create' ? regionSearchKeyword : editRegionSearchKeyword}}"
-            bindinput="{{currentRegionMode === 'create' ? 'onRegionSearchInput' : 'onEditRegionSearchInput'}}" 
+            bindinput="onRegionSearchInput"
-            confirm-type="search"
+            bindfocus="onRegionSearchFocus"
-            style="width: 100%; height: 70rpx; line-height: 70rpx; font-size: 28rpx; background: transparent;"
           />
-          <view 
+          <image 
-            wx:if="{{currentRegionMode === 'create' ? regionSearchKeyword : editRegionSearchKeyword}}" 
+            class="clear-icon-compact" 
-            bindtap="{{currentRegionMode === 'create' ? 'clearRegionSearch' : 'clearEditRegionSearch'}}" 
+            wx:if="{{(currentRegionMode === 'create' && regionSearchKeyword) || (currentRegionMode === 'edit' && editRegionSearchKeyword)}}"
-            style="position: absolute; right: 30rpx; top: 50%; transform: translateY(-50%); color: #999;"
+            src="/images/close.png" 
-          >
+            mode="aspectFit"
-            ✕
+            bindtap="clearRegionSearch"
-          </view>
+          ></image>
         </view>
       </view>
       
-      <!-- 地区列表 -->
+      <!-- 显示当前选择的地区 -->
+      <view style="padding: 20rpx; text-align: center; color: #666; font-size: 28rpx; border-bottom: 1rpx solid #f0f0f0;">
+        当前选择: {{regionOptions[selectedProvinceIndex].name}} {{currentCities[selectedCityIndex].name}} {{currentDistricts[selectedDistrictIndex]}}
+      </view>
+      
+      <!-- 搜索结果区域 -->
       <scroll-view 
-        scroll-y="true" 
+        wx:if="{{showSearchResults}}"
-        style="max-height: 60vh; padding: 0; -webkit-overflow-scrolling: touch;"
+        style="max-height: 200rpx; border-bottom: 1rpx solid #eee;"
-        enable-back-to-top="false"
+        scroll-y
       >
         <view 
           wx:for="{{filteredRegionOptions}}" 
-          wx:key="index" 
+          wx:key="item"
-          class="region-item {{selectedRegionIndex === index ? 'selected' : ''}}" 
+          class="search-result-item"
-          bindtap="selectRegion" 
+          bindtap="selectSearchRegion"
-          data-index="{{index}}"
+          data-region="{{item.region}}"
-          style="padding: 32rpx 40rpx; border-bottom: 1rpx solid #f0f0f0; font-size: 32rpx; color: {{selectedRegionIndex === index ? '#07c160' : '#131413'}}; text-align: center;"
+          data-province-index="{{item.provinceIndex}}"
+          data-city-index="{{item.cityIndex}}"
+          data-district-index="{{item.districtIndex}}"
         >
-          {{item}}
+          {{item.region}}
+        </view>
+        <view wx:if="{{filteredRegionOptions.length === 0}}" style="padding: 20rpx; text-align: center; color: #999;">
+          未找到匹配的地区
         </view>
       </scroll-view>
+      
+      <!-- 三级联动地区选择器 -->
+      <view style="height: 400rpx; padding: 20rpx 0;">
+        <picker-view 
+          indicator-style="height: 60rpx; background-color: rgba(245, 245, 245, 0.8);" 
+          style="width: 100%; height: 100%;" 
+          value="{{[selectedProvinceIndex, selectedCityIndex, selectedDistrictIndex]}}" 
+          bindchange="onRegionChange"
+        >
+          <picker-view-column>
+            <view wx:for="{{regionOptions}}" wx:key="index" style="line-height: 60rpx; text-align: center; font-size: 32rpx;">
+              {{item.name}}
+            </view>
+          </picker-view-column>
+          <picker-view-column>
+            <view wx:for="{{currentCities}}" wx:key="index" style="line-height: 60rpx; text-align: center; font-size: 32rpx;">
+              {{item.name}}
+            </view>
+          </picker-view-column>
+          <picker-view-column>
+            <view wx:for="{{currentDistricts}}" wx:key="index" style="line-height: 60rpx; text-align: center; font-size: 32rpx;">
+              {{item}}
+            </view>
+          </picker-view-column>
+        </picker-view>
+      </view>
     </view>
   </view>
 

pages/seller/index.wxss

@@ -49,12 +49,37 @@ button {
   background-color: white;
 }
 
+/* 紧凑搜索框样式 */
+.search-box-compact {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  background-color: #f8f9fa;
+  border: 2rpx solid #e9ecef;
+  border-radius: 40rpx;
+  padding: 0 16rpx;
+  transition: all 0.3s ease;
+}
+
+.search-box-compact:focus-within {
+  border-color: #07c160;
+  box-shadow: 0 0 0 3rpx rgba(7, 193, 96, 0.1);
+  background-color: white;
+}
+
 .search-icon {
   font-size: 28rpx;
   color: #999;
   margin-right: 16rpx;
 }
 
+/* 搜索图标文字 */
+.search-icon-text {
+  font-size: 24rpx;
+  color: #999;
+  margin-right: 12rpx;
+}
+
 .search-input {
   flex: 1;
   padding: 24rpx 0;
@@ -65,8 +90,20 @@ button {
   outline: none;
 }
 
-.search-input::placeholder {
+/* 紧凑搜索输入框 */
+.search-input-compact {
+  flex: 1;
+  padding: 16rpx 0;
+  font-size: 26rpx;
+  color: #333;
+  background-color: transparent;
+  border: none;
+  outline: none;
+}
+
+.search-input-compact::placeholder {
   color: #ccc;
+  font-size: 24rpx;
 }
 
 .clear-icon {
@@ -79,11 +116,38 @@ button {
   transition: all 0.2s ease;
 }
 
+/* 紧凑清除图标 */
+.clear-icon-compact {
+  width: 28rpx;
+  height: 28rpx;
+  margin-left: 8rpx;
+  cursor: pointer;
+  transition: all 0.2s ease;
+}
+
 .clear-icon:hover {
   background-color: transparent;
   color: #666;
 }
 
+/* 地区搜索结果项样式 */
+.search-result-item {
+  padding: 24rpx 32rpx;
+  font-size: 28rpx;
+  color: #333;
+  background-color: white;
+  border-bottom: 1rpx solid #f0f0f0;
+  transition: background-color 0.2s ease;
+}
+
+.search-result-item:hover {
+  background-color: #f5f5f5;
+}
+
+.search-result-item:last-child {
+  border-bottom: none;
+}
+
 /* 页面标题栏 */
 .title-bar {
   display: flex;