修改创建货源页面为全屏展示

pages/create-supply/index.js

@@ -23,6 +23,15 @@ Page({
     // 页面加载时的初始化
   },
 
+  /**
+   * 返回上一页
+   */
+  onBackTap: function () {
+    wx.navigateBack({
+      delta: 1
+    });
+  },
+
   /**
    * 品种输入处理
    */

pages/create-supply/index.json

@@ -2,5 +2,6 @@
   "navigationBarTitleText": "创建新货源",
   "navigationBarBackgroundColor": "#fff",
   "navigationBarTextStyle": "black",
+  "navigationStyle": "custom",
   "usingComponents": {}
 }

pages/create-supply/index.wxml

@@ -1,5 +1,14 @@
 <!-- pages/create-supply/index.wxml -->
 <view class="create-supply-container">
+  <!-- 自定义导航栏 -->
+  <view class="custom-nav-bar">
+    <view class="nav-left" bindtap="onBackTap">
+      <text class="back-icon">←</text>
+    </view>
+    <view class="nav-title">创建新货源</view>
+    <view class="nav-right"></view>
+  </view>
+  
   <view class="form-container">
     <view class="form-item">
       <text class="label">品种 *</text>

pages/create-supply/index.wxss

@@ -1,8 +1,56 @@
 /* pages/create-supply/index.wxss */
+page {
+  height: 100vh;
+  background-color: #f5f5f5;
+}
+
 .create-supply-container {
   background-color: #f5f5f5;
   min-height: 100vh;
   padding: 20rpx;
+  padding-top: 100rpx; /* 为自定义导航栏留出空间 */
+  box-sizing: border-box;
+}
+
+/* 自定义导航栏样式 */
+.custom-nav-bar {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 88rpx;
+  background-color: #fff;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20rpx;
+  box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.05);
+  z-index: 1000;
+}
+
+.nav-left {
+  width: 60rpx;
+  height: 88rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.back-icon {
+  font-size: 36rpx;
+  color: #333;
+}
+
+.nav-title {
+  font-size: 32rpx;
+  font-weight: 500;
+  color: #333;
+  text-align: center;
+  flex: 1;
+}
+
+.nav-right {
+  width: 60rpx;
 }
 
 .form-container {