.nav {
  z-index: 999;
  position: sticky;
  top: 0;
  width: 100%;
  transition: 0.5s;
  box-sizing: border-box;
  border-bottom: 1px solid #d4d4d4;
  background: white;
}
.nav .gm_top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  width:95%;
  max-width: 1480px;
  margin: 0 auto;
}
.nav2 {
  position: fixed;
}
.top_logo {
  position: relative;
  z-index: 2;
}
.top_logo p {
  color: #010101;
  font-size: 15px;
  text-align: center;
  letter-spacing: 2.5px;
  margin-top: 5px;
}
.top_right_list {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.top_left {
  display: flex;
  align-items: center;
}
.top_nav {
  position: relative;
  font-size: 16px;
}
.top_nav > ul {
  display: flex;
  width: 100%;
}
.top_nav > ul > li {
  text-align: center;
  transition: 0.5s;
  position: relative;
  padding: 42px 0;
}
.top_nav > ul > li:last-child a {
  border-right: none;
}
.top_nav > ul > li > a {
  transition: 0.5s;
  padding: 0px 65px;
  z-index: 9;
  position: relative;
  color: #3f3f3f;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  border-right: 1px dashed black;
}
.top_nav > ul > li > a > img {
  margin-left: 5px;
}
.top_nav > ul > li > em {
  background: #56aab7;
  width: 0%;
  height: 3px;
  right: 0;
  bottom: 0px;
  position: absolute;
  transition: 0.5s;
  border-radius: 50px;
}
.top_nav > ul > li:hover > em,
.top_nav > ul > li.al > em {
  left: 0;
  width: 100%;
}
.top_nav > ul > li:hover > a,
.top_nav > ul > li.al > a {
  color: #56aab7;
}
.top_right {
  position: relative;
}
.top_right ul {
  display: flex;
  transition: 0.5s;
  align-items: center;
}
.top_right ul li {
  margin-right: 5px;
}
.top_right ul li:nth-last-child(1) {
  margin-right: 0;
}
.top_right ul li:nth-last-child(1) a {
  display: flex;
  align-items: center;
}
.top_right ul li p {
  font-size: 20px;
  margin-left: 10px;
  font-weight: bold;
}
.top_right ul li .top_box_move {
  z-index: 999;
  top: 0;
  background: white;
}
.mob_logo {
  display: none;
}
/* 移动端导航按扭 */
.mob_inner_box {
  display: none;
  z-index: 10;
}
.mob_text h1 {
  font-size: 28px;
  margin-right: 10px;
}
.mob_icon span {
  margin-bottom: 8px;
  width: 34px;
  height: 2px;
  background: #56aab7;
  display: block;
  transition: 0.3s;
}
.mob_icon span:nth-last-child(1) {
  margin-bottom: 0;
}
.menu_content {
  background: black;
  opacity: 0.85;
  width: 50%;
  position: absolute;
  display: none;
  right: 0;
  top: 80px;
}
.menu_content_show {
  transition: 0.5s;
}
.menu_text {
  text-align: center;
}
.menu_text ul li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  transition: all 0.5s;
}
.menu_text a {
  font-size: 18px;
  color: white;
  padding: 20px 0px;
  display: block;
  /* 延迟加载菜单文字 */
  -webkit-animation-duration: 0.5s;
  animation-duration: 0.5s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-name: returnToNormal;
  animation-name: returnToNormal;
}
.mob_icon_show span:nth-of-type(1) {
  transform: translateY(10px) rotate(-45deg);
}
.mob_icon_show span:nth-of-type(2) {
  opacity: 0;
}
.mob_icon_show span:nth-of-type(3) {
  transform: translateY(-10px) rotate(45deg);
}
@-webkit-keyframes returnToNormal {
  0% {
    opacity: 0;
    transform: translate3d(0, -100%, 0);
  }
  100% {
    opacity: 1;
    transform: none;
  }
}
@keyframes returnToNormal {
  0% {
    opacity: 0;
    transform: translate3d(0, -100%, 0);
  }
  100% {
    opacity: 1;
    transform: none;
  }
}
@media screen and (max-width: 1366px) {
  .top_nav > ul > li {
    margin-right: 10px;
  }
}
@media screen and (max-width: 1260px) {
  .mob_inner_box {
    display: block;
  }
  .top_right_list {
    display: none;
  }
  .nav {
    height: auto;
  }
  .nav .gm_top {
    width: 90%;
    height: 80px;
    position: static;
  }
  .nav2 .gm_top {
    height: 80px;
    position: static;
  }
}
/* 移动端导航按钮*/
@media screen and (max-width: 768px) {
  .nav {
    background-position: -225px;
  }
  .logo h1 {
    font-size: 28px;
  }
  .logo i {
    display: block;
    line-height: 20px;
  }
  .top_right_list::after {
    display: none;
  }
  .top_logo {
    width: 70%;
    padding: 0;
  }
  .logo_box {
    padding: 10px 0;
  }
  .top_nav ul {
    display: none;
  }
  .logo_text {
    padding-left: 10px;
    margin-left: 10px;
    line-height: 30px;
  }
  .logo_img img {
    width: 17%;
  }
  .nav .gm_top {
    height: 80px;
  }
  .top_box_move {
    position: fixed;
    transition: 0.3s;
    z-index: 999;
    box-shadow: 0px 2px 0px 0px rgba(0, 0, 0, 0.1);
  }
  .menu_text a {
    font-size: 17.6px;
    color: rgba(255, 255, 255, 0.9);
    padding: 15px 0;
    display: block;
  }
  .menu_text ul li {
    padding: 0;
    border-color: rgba(255, 255, 255, 0.2);
  }
  .nav {
    background-position: -60px;
  }
}
@media screen and (max-width: 520px) {
  .logo_text p {
    display: none;
  }
  .logo_text i {
    display: none;
  }
  .top_logo {
    margin-left: 0px;
  }
  .top_logo > img {
    display: none;
  }
  .top_logo span {
    display: none;
  }
  .top_logo a p:nth-child(2) {
    margin-left: 5px;
    padding-left: 5px;
  }
  .logo_text {
    border: none;
    margin-left: 0;
  }
  .logo_text h1 {
    font-size: 13.6px;
  }
  .logo_text h2 {
    display: none;
  }
  .mob_icon {
    margin-top: 3px;
  }
  .menu_content {
    top: 53px;
  }
  .menu_text a {
    font-size: 16px;
    padding: 10px 0;
  }
  .mob_inner {
    top: 22%;
  }
  .mob_logo {
    display: flex;
    align-items: center;
  }
  .mob_logo > p {
    margin-left: 5px;
    color: black;
    font-weight: bold;
  }
  .nav .gm_top {
    height: 53px;
  }
  .nav .gm_top .top_logo a {
    display: inline-flex;
  }
  .nav .gm_top .top_logo img {
    height: auto;
  }
}
/* @media screen and (max-width:375px) {
    .menu_content{top: 44px;}
    
} */
/* 二级菜单 */
.rj {
  position: relative;
}
.rj > ul > li {
  background: rgba(255, 255, 255, 0.9);
  z-index: 1;
  transition: 0.5s;
  position: relative;
}
.rj > ul > li > a {
  width: 100%;
  display: block;
  transition: 0.5s;
  color: black;
  line-height: 50px;
  height: 50px;
  font-size: 14px;
}
.rj > ul > li:hover > a {
  color: white;
}
.rj .pl {
  background: #3d6aa3;
}
.xs {
  position: absolute;
  display: none;
  width: 100%;
  left: 50%;
  transform: translate(-50%, 42px);
}
.xs > li:hover {
  background: #56aab7;
}
/* 二级菜单 */
@media screen and (max-width: 1024px) {
  .rj ul li a {
    font-size: 15.2px;
  }
}
.xs li:hover .top_menu {
  display: block;
}
.top_menu {
  position: absolute;
  top: -1px;
  left: 100%;
  display: none;
  z-index: 1;
  width: 100%;
}
.top_menu:hover {
  display: block;
}
.top_menu ul {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.top_menu > ul > li > a {
  padding: 10px 0;
  transition: 0.5s;
  display: block;
  background: white;
  border-top: 1px solid #135393;
}
.top_menu > ul > li:hover > a {
  color: white;
  background: #135393;
}


@media screen and (max-width: 1385px) {
  .top_nav > ul > li > a{ padding:0 40px; }
}