feat:代码优化

miniprogram/mathPages/numberFind/numberFind.less

@@ -1,53 +1,4 @@
-page {
-    background-color: #f6f6f6;
-}
-
-.page-container {
-    background-color: #f6f6f6;
-    padding: 0 24rpx;
-    box-sizing: border-box;
-    padding-bottom: 160rpx; // 为底部按钮预留空间
-
-    .empty {
-        height: 50rpx;
-    }
-}
-
-.wrapper {
-    background-color: #ffffff;
-    border-radius: 20rpx;
-    padding: 36rpx 24rpx;
-    box-shadow: 0 6rpx 8rpx rgba(0, 0, 0, 0.15);
-    margin: 30rpx 0;
-    display: flex;
-    flex-direction: column;
-
-    .wrapper-title {
-        font-size: 32rpx;
-        color: #141414;
-        margin-bottom: 36rpx;
-        font-weight: bold;
-        text-align: center;
-    }
-
-    .canvas-wrapper {
-        display: flex;
-        justify-content: center;
-        align-items: center;
-        min-height: 400rpx;
-        background: #f8f9fa;
-        border-radius: 12rpx;
-        border: 2rpx dashed #dee2e6;
-    }
-
-    .canvas-content {
-        max-width: 100%;
-        border-radius: 8rpx;
-        box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.1);
-        overflow: hidden;
-    }
-
-}
+@import '../common/mathPage.less';
 
 /* 数字选择区域 */
 .number-selection-area {