.menu {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center; z-index: 1000;
}
.menu * {
  box-sizing: border-box;
}
.menu .center {
  width: 1200px;
}
.menu .ul-list {
  display: flex;
}
.menu .ul-list > li {
  flex: 1;
  position: relative;
}
.menu .ul-list > li:last-child {
  border-right: none;
}
.menu .ul-list > li > a {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
    .menu .ul-list > li > a.on {
        color: #1b66e6;
        font-weight: bold;
    }


.menu .ul-list > li > a:hover{color:#1b66e6 ; font-weight: bold; border-bottom: 2px solid #1b66e6;}
.menu .ul-list > li:hover .ol-list {
  display: block;
}
.menu .ol-list {
  display: none;
  position: absolute;
  top: 60px;
  left: 0;
  z-index: 99999;
  background: #f8f8f8;
  width: 100%;
}
.menu .ol-list > li > a {
  font-size: 14px;
  text-decoration: none;
  color: #38393a;
  height: 35px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #e5e9f0;
  justify-content: center;
}
.menu .ol-list > li > a:hover {
  background: #e0e4ec; color: #1b66e6;
}