fix style

@@ -58,17 +58,18 @@ export default {
 
   &:before {
     content: "";
-    height: 1px;
     position: absolute;
-    top: -1px;
-    left: -10px;
-    right: -10px;
-    z-index: 1;
-    box-shadow: 0 0 160px 10px #000;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.5);
   }
 
   .banner-main {
     height: 240px;
+    position: relative;
+    z-index: 2;
   }
 
   .topic-name {

@@ -387,7 +387,7 @@ export default {
   color: #fff;
   background: #D0021B;
   position: absolute;
-  bottom: 100px;
+  bottom: 40px;
   left: calc(50% - 130px);
   z-index: 1;
   display: flex;

@@ -269,7 +269,9 @@ export default {
   [Types.FETCH_TOPIC_INFO_SUCCESS](state, {topicId, data, thumb}) {
     state.fetchTopicInfo = false;
 
-    if (!thumb) {
+    if (thumb) {
+      data.allowAttention = 0;
+    } else {
       data.hasAttention = data.isAttend === 'Y';
     }