style(chat-main): update text color to #181B25

Also remove the now-unused .text-color CSS rule, update the direct text color in the HomeWelcome component from #0B5C2D to #181B25, and replace all existing uses of the .text-color class with direct inline text-[#181B25] utility classes in the NoticeMessage component.

src/pages/ChatMain/HomeWelcome/index.vue

@@ -150,7 +150,7 @@ const weatherTextMap = {
 .home-welcome-title {
   flex: 1;
   min-width: 0;
-  color: #0B5C2D;
+  color: #181B25;
   font-size: 21px;
   line-height: 28px;
   font-weight: 900;

src/pages/ChatMain/NoticeMessage/index.vue

@@ -4,14 +4,14 @@
       :duration="duration" :indicator-dots="false" :vertical="true">
       <swiper-item v-for="item in bannerList" :key="item.entityName">
         <view class="swiper-item" @click="clickItem(item)">
-          <text class="text-color text-[12px] font-[600]">
+          <text class="text-[#181B25] text-[12px] font-[600]">
             {{ item.entityName }}
           </text>
           <view class="notice-footer">
-            <text class="text-color text-[10px] font-[500]">
+            <text class="text-[#181B25] text-[10px] font-[500]">
               发布时间：{{ item.effectiveStartTime }}
             </text>
-            <text class="text-color text-[10px] font-[500] underline-text">
+            <text class="text-[#181B25] text-[10px] font-[500] underline-text">
               详情
             </text>
           </view>
@@ -23,7 +23,7 @@
 
   <view v-else-if="props.tipsMessage">
     <view class="noMessage">
-      <text class="noMessage-text text-color text-[12px] font-[600]">
+      <text class="noMessage-text text-[#181B25] text-[12px] font-[600]">
         {{ props.tipsMessage }}
       </text>
     </view>
@@ -104,10 +104,6 @@ const clickItem = (item) => {
   min-width: 0;
 }
 
-.text-color {
-  color: #0B5C2D;
-}
-
 .underline-text {
   text-decoration: underline;
   text-decoration-color: #35F37F;