.log {
  background: #26252d;
  padding: 0 0 30px;
  color: #fff;
  min-height: calc(100vh - 371px);
} 

.log .bg {
  height: 170px;
  background: url('../img/updatelog.jpg') no-repeat;
  text-align: center;
  padding: 45px 0;
  background-size:100% 100%; 
	background-attachment: fixed;
}
.log .bg .title{
  margin: 0;
  letter-spacing: 5px;
  font-size: 22px;
}
.log .bg .subtitle{
  font-size: 18px;
  color: #727272;
  letter-spacing: 4px;
  margin: 7px 0;
}
.log .bg .version i{
  font-style: normal;
  font-size: 15px;
  margin-right: 5px;
}
.log .bg .version a{
  display: inline-block;
  width: 96px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border: 1px solid #cea45a;
  color: #cea45a;
  border-radius: 20px;
  user-select: none;
  cursor: pointer;
  text-decoration: none;
}

.timeLine-collapse {
  font-size: 13px;
}
.timeLine-collapse:first-child {
  margin-top: 10px;
}
.timeLine-collapse .item {
  border-top: 1px solid #8b8b8b;
}
.timeLine-collapse .item:first-child {
  border-top: none;
}
.timeLine-collapse .item:last-child {
  border-bottom: 1px solid #8b8b8b;
}
.timeLine-collapse .item:last-child {
  border-bottom: 1px solid #8b8b8b;
}
.item .item-header {
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  line-height: 3.5;
  color: #fff;
  cursor: pointer;
}
.item .item-header::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-top: 1px solid #bfbfbf;
  border-right: 1px solid #bfbfbf;
  margin-left: auto;
  transform: rotate(45deg);
  margin-right: 10px;
  transition: all .3s;
}
.item.active .item-header::after {
  transform: rotate(135deg);
  transition: all .3s;
}
.item .item-content {
  font-size: 14px;
  color: #bfbfbf;
  height: 0;
  overflow: hidden;
  transition: all .3s;
  margin-left: 20px;
}
.item.active .item-content {
  height: auto;
  padding-bottom: 20px;
  transition: all .3s;
}