body {
  overflow-x: hidden;
}

.standard {
  margin: 0px 20px;
}


/*默认状态*/

a:link {
  color: #353535;
  text-decoration: none;
}

/*访问后得状态*/

a:visited {
  color: #353535;
  text-decoration: none;
}

/*鼠标悬浮状态*/

a:hover {
  text-decoration: none;
}

/*点击状态*/

a:active {
  color: #353535;
  text-decoration: none;
}

.nav {
  min-height: 130px;
  width: 100%;
  background-color: #343434;
  color: #ffffff;
}

.nav_btn {
  float: left;
}

.nav_btn svg {
  width: 40px;
}

.nav_main {
  width: 100%;
  height: 130px;
  display: flex;
  align-items: center;
}

.nav_logo {
  margin: 0px auto;
}

.logo {
  opacity: inherit;
  width: 240px;
  height: 60px;
  margin: 0px auto;
}

.nav_list {
  background-color: #343434;
  position: absolute;
  z-index: 99999;
  width: 100%;
}

.nav_item {
  text-align: center;
  height: 50px;
}

.nav_item_a:link {
  color: #ffffff;
  font-size: 16px;
}

.nav_item_a:visited {
  color: #ffffff;
  font-size: 16px;
}

.nav_item_a:hover {
  color: #ffffff;
  font-size: 16px;
}

.nav_item_a:active {
  color: #ffffff;
  font-size: 16px;
}

.nav_item_main {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  align-content: center;
}

.nav_item_click {
  background-color: #e5a32d;
}

.footer {
  width: 100%;
  min-height: 360px;
  background-image: url("https://swwz.oss-cn-beijing.aliyuncs.com/images/bottm.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  border-top: 10px #e5a32d solid;
}

.footer_main {
  padding: 40px 0px;
}

.footer_logo {
  width: 270px;
  height: 50px;
}

.footer_bottom {
  background-color: #252525;
  color: #c8c8c8;
  text-align: center;
  line-height: 40px;
  padding: 0 10px;
}

.footer_main_tuijian {
  margin: 40px 0px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer_tuijian {
  float: left;
  width: 30px;
  margin-right: 20px;
}

.footer_nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 16px;
  border-bottom: 1px #5d5d5d solid;
  margin: 0px 20px;
}

.footer_nav_item {
  color: #ffffff;
  margin-top: 15px;
  margin-bottom: 15px;
}

.footer_nav_item a {
  color: #ffffff;
}

.footer_nav_fen {
  color: #5c5d5c;
}

.footer_auto {
  margin: 15px;
  margin-right: 20px;
  margin-left: 20px;
}

.footer_lianxi {
  margin-top: 20px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  justify-content: center;
}

.footer_dibu {
  text-align: center;
}

.xianshi {
  visibility: visible;
}

.yincang {
  visibility: hidden;
  height: 0px;
}

.background_banner {
  width: 100%;
}

.background_banner img {
  width: 100%;
}

.menu {
  margin: 10% 2%;
  display: flex;
  justify-content: center;
}

.menu_list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.menu_item {
  padding: 0px 15px;
  height: 40px;
  min-width: 65px;
  color: #000000;
  border: 1px #e5a32d solid;
  background-color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 14px;
  margin: 0 10px 10px;
  border-radius: 100px;
}

.menu_item_click {
  padding: 0px 15px;
  height: 40px;
  min-width: 65px;
  color: #ffffff;
  border: 1px #e5a32d solid;
  background-color: #e5a32d;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 12px;
  margin: 0 10px 10px;
  border-radius: 100px;
}

/* .menu_item_left {
  border-radius: 25px 0px 0px 25px;
}

.menu_item_right {
  border-radius: 0px 25px 25px 0px;
} */

.menu2 {
  margin: 0px auto;
  margin-top: 60px;
  max-width: 1200px;
  display: flex;
  align-items: center;
}

.menu2_item {
  width: 120px;
  height: 40px;
  border-radius: 20px;
  border: 1px #bfbfbf solid;
  font-size: 20px;
  text-align: center;
  line-height: 40px;
  margin: 0px 30px;
}

.menu2_item_click {
  border: 0px;
  color: #ffffff;
  background-color: #e5a32d;
}

/*默认状态*/

.menu2_item_click:link {
  color: #ffffff;
  text-decoration: none;
}

/*访问后得状态*/

.menu2_item_click:visited {
  color: #ffffff;
  text-decoration: none;
}

/*鼠标悬浮状态*/

.menu2_item_click:hover {
  color: #ffffff;
  text-decoration: none;
}

/*点击状态*/

.menu2_item_click:active {
  color: #ffffff;
  text-decoration: none;
}

.fuchuang {
  position: fixed;
  right: 0px;
  top: 350px;
  z-index: 9999;
  height: 300px;
  width: 60px;
  display: flex;
  align-self: flex-end;
  flex-wrap: wrap;
}

.fuchuang_td {
  background-color: #e4e5e5;
  width: 60px;
  height: 60px;
  text-align: center;
  line-height: 60px;
}

.fuchuang_th {
  background-color: #e5a32d;
  width: 60px;
  height: 60px;
  display: flex;
  padding-top: 18px;
  padding-left: 14px;
}

.fuchuang_img {}