blockquote,
body,
button,
dd,
dl,
dt,
fieldset,
form,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
input,
legend,
li,
ol,
p,
pre,
td,
textarea,
th,
ul {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
}
em,
i {
  font-style: normal;
}
ul,
ol,
li {
  list-style: none;
}
img {
  border: 0;
  vertical-align: middle;
}
button {
  cursor: pointer;
}
a {
  text-decoration: none;
}
button,
input {
  font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
  outline: none;
}
body {
  -webkit-font-smoothing: antialiased;
  background-color: #fff;
  font: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
}
.__nav_tab_list_fixed__ {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99999;
  background-color: #fff;
  box-sizing: border-box;
  -webkit-box-shadow: 0 1px 10px 0 rgba(0, 0, 0, 0.1);
  box-shadow: 0 1px 10px 2px rgba(0, 0, 0, 0.1);
}
.top_banner {
    float: unset;
    display: flex;
    justify-content: space-between;
}
.top_banner .logo {
    float: unset;
}
.top_banner .ad {
    float: unset;
}
#nav_tab_List {
  width: 100%;
}
#nav_tab_List div:after,
#nav_tab_List ul:after,
#nav_tab_List li:after {
  content: unset !important;
}
#nav_tab_List .top_nav1 {
  position: relative;
  height: 44px;
  padding-bottom: 0;
  width: 990px;
  margin: 0 auto;
  border-bottom: 2px #E6E6E6 solid;
  float: unset;
  background: none;
}
#nav_tab_List .top_nav1 .g_nav_index .nav_tab_Box {
  display: flex;
  justify-content: space-between;
}
#nav_tab_List .top_nav1 .g_nav_index li {
  margin-top: 0px;
  float: left;
  display: inline;
  font: bold 14px/25px simsun;
}
#nav_tab_List .top_nav1 .g_nav_index li a {
  color: #343434;
  padding: 14px 0px;
  display: block;
  font-weight: 500;
  font-size: 16px;
  border-right: none;
}
#nav_tab_List .top_nav1 .g_nav_index li a:hover {
  background-color: transparent;
}
#nav_tab_List .top_nav1 .g_nav_index ul li a {
  font-family: Microsoft YaHei;
  line-height: 16px;
}
#nav_tab_List .top_nav1 .g_nav_index .last a {
  border-right: none;
}
#nav_tab_List .top_nav1 .top_more {
  width: 100px;
  background-color: #fff;
  position: absolute;
  top: 35px;
  padding-top: 10px;
  z-index: 99999999;
  height: auto;
  right: -14px;
  box-shadow: 0px 0px 4px 0px #ccc;
}
#nav_tab_List .top_nav1 .top_more li {
  width: 100%;
  display: block;
}
#nav_tab_List .top_nav1 .top_more a {
  display: block;
  height: 100%;
  padding-left: 16px;
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  color: #414749;
  line-height: 7px;
  font-weight: normal;
}
#nav_tab_List .top_nav1 .top_more a:hover {
  background-color: #cc0000;
  color: #fff;
}
#nav_tab_List .top_nav1 .top_nav2_top {
  width: 990px;
  position: absolute;
  background: none;
  background-color: #ffffff;
  margin-left: 0px;
  z-index: 999999999;
  display: none;
  top: 46px;
  float: unset;
  padding-bottom: 10px;
}
#nav_tab_List .top_nav1 .top_nav2_top ul {
  float: left;
  margin-top: 12px;
  padding-left: 100px;
  position: relative;
}
#nav_tab_List .top_nav1 .top_nav2_top li {
  display: block;
  float: left;
  font-size: 14px;
  margin: 4px;
}
#nav_tab_List .top_nav1 .top_nav2_top li a {
  color: #808080;
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  padding: 0;
}
#nav_tab_List .top_nav1 .top_nav2_top li a:hover {
  color: #b90000;
}
#nav_tab_List .top_nav1 .top_nav2_top li:nth-child(1) {
  margin: 0;
  margin-right: 20px;
  position: absolute;
  left: 0;
}
#nav_tab_List .top_nav1 .top_nav2_top .tb_top_title {
  line-height: 23px;
  width: 77px;
  background: url(//images.ofweek.com/laser/images/tt.png) no-repeat;
  background-position: 0px 0px;
  font-size: 13px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
  padding-bottom: 20px;
  padding-left: 8px;
}

.top_banner {
  float:unset;
}