feat: Add plant identification feature with image upload, classification results display, and integration into the wiki page.

pages/wiki/index.wxss

@@ -104,37 +104,92 @@
 /* Popup Styles */
 .popup-content {
   background: white;
-  border-radius: 40rpx 40rpx 0 0;
-  padding: 40rpx;
-  padding-bottom: env(safe-area-inset-bottom);
+  border-radius: 48rpx 48rpx 0 0;
+  padding: 48rpx 40rpx;
+  padding-bottom: calc(48rpx + env(safe-area-inset-bottom));
 }
 
 .popup-header {
   text-align: center;
-  margin-bottom: 48rpx;
+  margin-bottom: 16rpx;
 }
 
 .popup-title {
-  font-size: 36rpx;
+  font-size: 40rpx;
   font-weight: 800;
-  color: var(--text-main);
+  background: linear-gradient(120deg, #33691E, #689F38);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  display: inline-block;
+}
+
+.popup-subtitle {
+  font-size: 26rpx;
+  color: #9CA3AF;
+  text-align: center;
+  display: block;
+  margin-bottom: 48rpx;
 }
 
 .upload-options-grid {
-    display: flex; gap: 40rpx; justify-content: center;
-    margin-bottom: 48rpx;
+  display: flex;
+  gap: 32rpx;
+  justify-content: center;
+  margin-bottom: 48rpx;
 }
 
 .upload-opt-item {
-    display: flex; flex-direction: column; align-items: center; gap: 16rpx;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 20rpx;
+  background: #F9FAFB;
+  border-radius: 32rpx;
+  padding: 40rpx 24rpx;
+  transition: all 0.2s;
+}
+
+.upload-opt-item:active {
+  transform: scale(0.96);
+  background: #F0F7EB;
 }
 
 .opt-icon-circle {
-    width: 120rpx; height: 120rpx; border-radius: 40rpx;
-    display: flex; align-items: center; justify-content: center;
+  width: 112rpx;
+  height: 112rpx;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 8rpx 24rpx rgba(0,0,0,0.06);
+}
+
+.upload-opt-item text {
+  font-size: 28rpx;
+  font-weight: 600;
+  color: #374151;
 }
 
 .popup-footer {
-    display: flex;
-    justify-content: center;
+  display: flex;
+  justify-content: center;
+  padding-top: 8rpx;
+}
+
+.popup-footer .cancel-btn {
+  width: 100%;
+  height: 88rpx;
+  line-height: 88rpx;
+  text-align: center;
+  font-size: 32rpx;
+  font-weight: 600;
+  color: #6B7280;
+  background: #F3F4F6;
+  border-radius: 44rpx;
+  border: none;
+}
+
+.popup-footer .cancel-btn:active {
+  background: #E5E7EB;
 }