style：意见反馈样式

src/web/staticres/site/page/helpCenter/css/feedback.css

@@ -8,6 +8,9 @@
   height: 100%;
   padding-top: 64px;
 }
+.page-feedback .feedback-container{
+  padding: 0 100px;
+}
 .page-feedback .feedback-title{
   padding: 48px 0 4px;
   font-size: 24px;

src/web/templates/site/page/helpCenter/feedback.html

@@ -20,7 +20,7 @@
 		{{include "/common/pchead.html"}}
 
 		<section class="page-feedback">
-      <div class="w1200">
+      <div class="w1200 feedback-container">
         <h1 class="feedback-title">意见反馈</h1>
         <div class="feedback-form">
           <div class="f-item">