feat(h5): apply October 12 customer report feedback

h5/index.html

@@ -225,6 +225,7 @@
         <div class="dpanel" data-panel="1">
           <div class="ditem"><div class="viz-frame"><img id="viz-smooth" class="ditem-img" alt="平滑度检测图" hidden><span class="viz-missing">本次未获取平滑度检测图</span></div>
           <div class="ditem-text"><p class="ditem-para" id="tx-smooth">检测完成后显示分析结果。</p></div></div>
+          <p class="viz-caption" id="smooth-map-note"></p>
         </div>
         <div class="dpanel" data-panel="2">
           <div class="ditem"><div class="viz-frame"><img id="viz-water" class="ditem-img" alt="水分检测图" hidden><span class="viz-missing">本次未获取水分检测图</span></div>
@@ -306,7 +307,7 @@
       <img src="assets/img/ui-20261009/icon-close.png" alt="关闭">
     </button>
     <h2 class="popup-title popup-title-center">请拍摄或上传<br>正面及左右侧面照片</h2>
-    <p class="guide-description">请在光线充足处，取下眼镜，保持面部清晰入镜。</p>
+    <p class="guide-description">为使测试结果更准确，请关闭美颜/滤镜、并确保光线充足均匀。</p>
     <button class="btn btn-primary popup-btn" data-action="start-camera">开始</button>
   </div>
 </div>