修复bug

src/pages/intoTime/App.js

                             }
                         
                     });
-                    console.log(scrollY,ulScrolls);
+                    let documentHeight = document.documentElement.scrollHeight; // 文档总高度
+                    let viewportHeight = window.innerHeight; // 视口高度
+                    const heightThreshold = documentHeight - viewportHeight - 249; // 计算阈值
+                    let dom = document.querySelector('.timeYear')
+                    dom.style.opacity = (scrollY >= heightThreshold) ? '0' : '1';
+                   
+                    // console.log(scrollY,ulScrolls);
                     
-                } catch (error) { }
+                } catch (error) { console.log(error)}
             }
             window.addEventListener('scroll', updateScrollChange1);
         }

src/pages/intoTime/index.less

     position: sticky;
     top: 170px;
     z-index: 2;
+    opacity: 1;
+    transition: all .1s;
     &>div{
       width: 212px;
       position: absolute;

src/pages/socialResponsibility/App.js

                 tabs_ul[1].classList.add('tabs_lis')
                 news_ul.style.display = 'none';
                 typeCon.style.display = 'block';
+                this.fold()
             }else{
                 tabs_ul[0].classList.add('tabs_lis')
                 news_ul.style.display = 'block';