.m_nav_list {
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  width: 100%;
  overflow: auto;
}

.m_nav_list::-webkit-scrollbar {
  display: none;
}

#m_nav {
  z-index: 99999;
  position: fixed;
  background: #202c5c;
  width: 20rem;
  height: 100vh;
  right: -20rem;
  top: 0;
  display: none;
  padding: 50px 0;
  overflow: hidden;
  pointer-events: none;
  transition: all 0.5s cubic-bezier(0.445, 0.145, 0.355, 1);
  -webkit-transition: all 0.5s cubic-bezier(0.445, 0.145, 0.355, 1);
  -moz-transition: all 0.5s cubic-bezier(0.445, 0.145, 0.355, 1);
  -o-transition: all 0.5s cubic-bezier(0.445, 0.145, 0.355, 1);
  -ms-transition: all 0.5s cubic-bezier(0.445, 0.145, 0.355, 1);
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
  -moz-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
}

#m_nav.act {
  pointer-events: auto;
  right: 0;
}

#m_nav>ul>li {
  width: 100%;
  overflow: hidden;
  padding: 0 2.3rem;
}

#m_nav>ul>li+li {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

#m_nav li .a h3 {
  line-height: 4.5rem;
  height: 4.5rem;
  color: #fff;
  padding: 0;
  font-size: 1.125rem;
  float: left;

  font-family: SourceHanSansCN-Medium;
  /* font-size: 3.5vw; */
  font-weight: normal;
  font-stretch: normal;
  /* letter-spacing: 0vw; */
  color: #ffffff;
}

#m_nav li .a span {
  display: block;
  position: absolute;
  top: 0;
  right: 10px;
  width: 20px;
  height: 50px;
  text-align: center;
}

#m_nav li .a span i {
  font-size: 0;
}

#m_nav .title .a i {
  opacity: 1;
  filter: alpha(opacity=100);
  display: inline-block;
  width: 10px;
  height: 4.5rem;
  float: right;
  display: inline-block;
  background: url(../imgs/arrow_down.svg) center no-repeat;
  -webkit-background-size: contain;
  -moz-background-size: contain;
  -o-background-size: contain;
  background-size: contain;
}

#m_nav .on.title .a i {
  -webkit-transform: rotate(-180deg);
  -moz-transform: rotate(-180deg);
  -ms-transform: rotate(-180deg);
  -o-transform: rotate(-180deg);
  transform: rotate(-180deg);
}

#m_nav li {
  display: block;
  width: 100%;
}

.slide_nav {
  position: absolute;
  left: 0;
  height: 70px;
  z-index: 998;
  padding: 15px;
  top: 0;
  width: 100%;
}

#m_nav .title .list {
  display: none;
  position: relative;
  width: 100%;
  z-index: 9;
  left: 0;
  margin-left: 0;
  background: none;
  border: 0;
  clear: both;
  padding-bottom: 10px;

  opacity: 1;
  visibility: visible;
}

#m_nav .title .list span {
  background: none;
}

#m_nav .title .list span a:hover {
  color: #014085;
}

#m_nav .title .list a {
  display: block;
  font-size: 1rem;
  color: #fff;
  text-align: left;
  line-height: 35px;
  height: 35px;
  border: 0;
  font-weight: 300;

  font-family: SourceHanSansCN-Regular;
  /* font-size: 3.2vw; */
  font-weight: normal;
  font-stretch: normal;
  /* letter-spacing: 0vw; */
  color: #a5adce;
}

/*三级导航 开始*/
#m_nav .title .list .void>a {
  -webkit-background-size: 10px 10px;
  -moz-background-size: 10px;
  -o-background-size: 10px;
  background-size: 10px;
  position: relative;
}

#m_nav .title .list .void>a:before {
  content: "·";
  position: absolute;
  left: -1em;
  font-size: 12px;
  font-weight: bold;
}

#m_nav .title .list span {
  position: relative;
  display: block;
}

#m_nav .title .list span .sub {
  position: static;
  width: 100%;
  display: block !important;
  overflow: hidden;
}

#m_nav .title .sub a {
  background: none;
  font-size: 0.875rem;
  opacity: 0.8;
  min-width: 50%;
  float: left;
  display: inline-block;
  color: #999;
}

.nav_mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.4);
  display: none;
}

/* 三级菜单 PC版 */
.dropdown_menu1 {
  /* position: relative; */
}

.dropdown_menu1 span {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -o-transform: translateY(-50%);
  transform: translateY(-50%);
  right: -0.625vw;
}

.dropdown_submenu {
  display: none;

  position: absolute;
  top: 0;
  right: 0;
  /* right: -0.625vw; */
  -webkit-transform: translateX(100%);
  -moz-transform: translateX(100%);
  -ms-transform: translateX(100%);
  -o-transform: translateX(100%);
  transform: translateX(100%);

  background: #fff;
  -webkit-box-shadow: 0 0.781vw 1.406vw 0 rgba(167, 165, 165, 0.38);
  -moz-box-shadow: 0 0.781vw 1.406vw 0 rgba(167, 165, 165, 0.38);
  box-shadow: 0 0.781vw 1.406vw 0 rgba(167, 165, 165, 0.38);
  -webkit-border-radius: 0.521vw;
  -moz-border-radius: 0.521vw;
  border-radius: 0.521vw;
  padding: 0 0.625vw;
  width: -webkit-max-content;
  width: -moz-max-content;
  width: max-content;
}

.dropdown_menu1:hover .dropdown_submenu,
.dropdown_menu1 .dropdown_menu2.active+.dropdown_submenu {
  display: block;
}