feat: 主题颜色的调整，现在支持切换颜色

src/pages/index/components/chat/ChatInputArea/styles/index.scss

@@ -65,7 +65,7 @@
           #8afcf8 0%,
           rgba(138, 252, 248, 0) 100%
         ),
-        #2d91ff;
+        $theme-color-500;
     }
 
     .send-icon {

src/pages/index/components/chat/ChatQuickAccess/index.vue

@@ -4,7 +4,7 @@
       @click="sendReply(item)">
       <view class="flex items-center justify-center">
         <image v-if="item.icon" class="icon" :src="item.icon" />
-        <text class="font-size-14 color-2D91FF line-height-20">
+        <text class="font-size-14 theme-color-500 line-height-20">
           {{ item.title }}
         </text>
       </view>

src/pages/index/components/module/AttachListComponent/styles/index.scss

@@ -18,6 +18,6 @@
 }
 
 .tag-text {
-  color: #2d91ff; /* 蓝色文字，可根据设计调整 */
+  color: $theme-color-500;
   font-size: $uni-font-size-base;
 }

src/pages/index/components/module/MoreService/styles/index.scss

@@ -23,7 +23,7 @@
 }
 
 .right {
-  background-color: #2d91ff;
+  background-color: $theme-color-500;
   border-radius: 5px;
   padding: 6px;
 }