.article-search{
  width: 490px !important;
  margin-right: 0 !important;
}
.article-search input{
  width: 490px !important;
}
.article-search .icon_big {
  right: 14px !important;
  top: 12px !important;
}
.icon-big-bg{
  display: inline-block;
  background-color: #FFF;
  width: 50px;
  position: absolute;
  box-sizing: border-box;
  right: 0px;
  z-index: 5;
  height: 40px;
  top: 6px;
  border-radius: 0 3px 3px 0;
  border: 1px solid #ebebeb;
  border-left: none;
}

.article-search input:focus ~ .icon-big-bg{
  background-color: #0084ff;
  border: 1px solid #0084ff;
}

.article-search input:focus ~ .icon-big-bg .icon_big{
  background-position: -187px -144px;
}
.icon-search-focus{
  background-position: -187px -144px;
  top: 18px;
  right: 52px;
  z-index: 10;
  width: 18px;
  height: 18px;
  position: absolute;
}