article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
body {
  line-height: 1;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
* {
  box-sizing: border-box;
  font-family: "微软雅黑";
}
.menu {
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
}
.menu * {
  box-sizing: border-box;
}
.menu .center {
  width: 700px;
}
.menu .ul-list {
  display: flex;
}
.menu .ul-list > li {
  flex: 1;
  position: relative;
  width: 120px;
}
.menu .ul-list > li :hover{
  border-bottom: 2px solid #fa6400;
}
.menu .ul-list > li:last-child {
  border-right: none;
}
.menu .ul-list > li > a {
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  text-decoration: none;
  color: #fff;
  
}
.menu .ul-list > li > span {
  color: #fff;
  font-size: 14px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #222;
}
.menu .ul-list > li:hover .ol-list {
  display: block;
  border: none;

}
.menu .ol-list {
  display: none;
  position: absolute;
  top: 52px;
  left: 0;
  z-index: 999;
  background: #ffffff;
  width: 120px;
}
.menu .ol-list > li > a {
  font-size: 14px;
  text-decoration: none;
  color: #fff;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu .ol-list > li > a:hover {
  background: #ffffff;
  border-bottom: none;
}