* {
  margin: 0;
  padding: 0;
  text-decoration: none;
  list-style: none;
  outline: none;
}
html {
  font-size: 16px;
  color: #434343;
  font-family: PingFangSC-Regular;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
@font-face {
  font-family: PingFang-SC-Medium;
  src: url(../font/PingFang\ Medium.ttf);
}
img {
  display: block;
  width: 100%;
}
button {
  cursor: pointer;
}
input[type=number] {
  -moz-appearance: textfield;
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.w1200 {
  width: 75rem;
  margin: 0 auto;
}
body {
  background-color: #f5f5f5;
}
header {
  background: #fff;
}
header .top {
  border-bottom: solid 1px #dcdcdc;
}
header .top .flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header .top .flex nav {
  display: flex;
}
header .top .flex nav .lv1 {
  margin-left: 5.625rem;
  position: relative;
}
header .top .flex nav .lv1 .lv1_name {
  display: block;
  font-size: 1rem;
  color: #363636;
  line-height: 7.5rem;
}
header .top .flex nav .lv1 .lv2_list {
  position: absolute;
  top: 100%;
  margin-left: -3.75rem;
  display: none;
  z-index: 999;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv2_name {
  display: block;
  width: 11.25rem;
  line-height: 2.4375rem;
  border-bottom: solid 1px #dcdcdc;
  text-align: center;
  font-size: 0.875rem;
  color: #363636;
  background-color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv2_name:hover {
  background-color: #1c2975;
  color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list {
  position: absolute;
  left: calc(100% + 1px);
  top: 0;
  display: none;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv3_name {
  display: block;
  width: 11.875rem;
  line-height: 2.4375rem;
  border-bottom: solid 1px #dcdcdc;
  text-align: center;
  font-size: 0.875rem;
  color: #363636;
  background-color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv3_name:hover {
  background-color: #1c2975;
  color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list {
  display: none;
  position: absolute;
  left: calc(100% + 1px);
  top: 0;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4 .lv4_name {
  display: block;
  width: 11.875rem;
  line-height: 2.4375rem;
  border-bottom: solid 1px #dcdcdc;
  text-align: center;
  font-size: 0.875rem;
  color: #363636;
  background-color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4 .lv4_name:hover {
  background-color: #1c2975;
  color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4 .lv5_list {
  position: absolute;
  left: calc(100% + 0px);
  top: 0;
  display: none;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4 .lv5_list .lv5 .lv5_name {
  display: block;
  width: 6.5625rem;
  line-height: 2.4375rem;
  border-bottom: solid 1px #dcdcdc;
  text-align: center;
  font-size: 0.875rem;
  color: #363636;
  background-color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4 .lv5_list .lv5 .lv5_name:hover {
  background-color: #1c2975;
  color: #fff;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3 .lv4_list .lv4:hover .lv5_list {
  display: block;
}
header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list .lv3:hover .lv4_list {
  display: block;
}
header .top .flex nav .lv1 .lv2_list .lv2:hover .lv3_list {
  display: block;
}
header .top .flex nav .lv1:hover .lv1_name {
  border-bottom: solid 0.375rem #1c2975;
}
header .top .flex nav .lv1:hover .lv2_list {
  display: block;
}
header .top .flex nav .lv1:first-child {
  margin-left: 0;
}
header .top .flex nav .active .lv1_name {
  border-bottom: solid 0.375rem #1c2975;
}
header .top .flex .search {
  display: flex;
  border: solid 1px transparent;
  width: 12.5rem;
  height: 3.125rem;
  border-radius: 1.5625rem;
  overflow: hidden;
  align-items: center;
  padding: 0 0.625rem;
}
header .top .flex .search input {
  display: block;
  width: calc(100% - 1.375rem);
  height: 100%;
  border: none;
  font-size: 1rem;
  background-color: transparent;
}
header .top .flex .search .search_btn {
  cursor: pointer;
}
header .top .flex .fold {
  display: none;
}
header .top .flex .language{
  display: flex;
  align-items: center;
} 
header .top .flex .language .chose_language{
  position: relative;
  margin-left: .5rem;
  cursor: pointer;
}
header .top .flex .language .chose_language .now{
  display: flex;
  align-items: center;
}
header .top .flex .language .chose_language .drop{
  position: absolute;
  display: none;
  z-index: 999;
}
header .top .flex .language .chose_language .drop a{
  display: block;
  line-height: 1.5rem;
  color: #434343;
}
header .banner {
  position: relative;
}
header .banner .text {
  position: absolute;
  text-align: center;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
header .banner .text .cn {
  font-size: 3rem;
  color: #434343;
}
header .banner .text .en {
  font-size: 0.875rem;
  color: #434343;
  margin: 0.5rem auto 1rem;
}
header .banner .text .line {
  width: 4.875rem;
  height: 0.3125rem;
  background-color: #434343;
  margin: 0 auto;
}
header .secondary {
  display: flex;
  justify-content: center;
  box-shadow: 0 10px 40px #d5d5d5;
}
header .secondary a {
  display: flex;
  width: 12.5rem;
  height: 5rem;
  align-items: center;
  justify-content: center;
}
header .secondary a .icon .img2 {
  display: none;
}
header .secondary a p {
  font-size: 0.875rem;
  color: #434343;
  margin-left: 1.125rem;
}
header .secondary .active {
  background-color: #1c2975;
}
header .secondary .active .icon .img1 {
  display: none;
}
header .secondary .active .icon .img2 {
  display: block;
}
header .secondary .active p {
  color: #fff;
}
footer {
  background-color: #1c2975;
}
footer .w1200 {
  height: 8.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
footer .w1200 .left {
  font-size: 0.875rem;
  line-height: 1.5rem;
  color: #ffffff;
}
footer .w1200 .select {
  width: 15rem;
  background-color: #ebebeb;
  position: relative;
}
footer .w1200 .select .select_name {
  height: 2.375rem;
  display: flex;
  padding: 0 0.875rem;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.875rem;
  color: #464646;
}
footer .w1200 .select .select_list {
  display: none;
  position: absolute;
  width: 100%;
  bottom: 100%;
}
footer .w1200 .select .select_list a {
  height: 2.375rem;
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: #464646;
  padding: 0 0.875rem;
  background-color: #fff;
}
footer .w1200 .select .select_list a:hover {
  color: #1c2975;
  background-color: #ebebeb;
}
.introduce_box .col_title {
  font-size: 1.5rem;
  color: #1c2975;
}
.introduce_box .col_title::after {
  content: '';
  display: block;
  width: 2.75rem;
  height: 0.25rem;
  margin-top: 1rem;
  background-color: #222f79;
}
.introduce_box .col_text {
  font-size: 0.875rem;
  line-height: 1.5rem;
  color: #434343;
  margin-top: 1.5rem;
}
@media screen and (max-width: 1200px) {
  html {
    font-size: 12px;
  }
  .w1200 {
    width: 96%;
  }
  header .top .flex .fold {
    display: block;
    margin-left: 2rem;
  }
  header .top .flex {
    /* justify-content: flex-start; */
  }
  header .top .flex .search {
    margin-left: auto;
  }
  header .top .flex nav {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 100%;
    background-color: #fff;
    z-index: 999;
    display: block;
    /* pointer-events: none; */
  }
  header .top .flex nav .lv1 {
    margin-left: 0;
    text-align: center;
  }
  header .top .flex nav .lv1 .lv2_list {
    position: unset;
    margin-left: 0;
  }
  header .top .flex nav .lv1 .lv2_list .lv2 .lv2_name {
    width: 100%;
    text-align: center;
  }
  header .top .flex nav .lv1 .lv2_list .lv2 .lv3_list {
    display: none;
  }
  header .top .flex nav::after {
    content: '关闭';
    width: 80%;
    text-align: center;
    line-height: 3rem;
    border-radius: 1.5rem;
    position: absolute;
    border: solid 2px #1c2975;
    font-size: 1.5rem;
    color: #1c2975;
    left: 10%;
    bottom: 5%;
    pointer-events: auto;
  }
}
@media screen and (max-width: 767px) {
  header .top .flex .logo {
    width: 5rem;
  }
  footer .w1200 {
    display: block;
    height: auto;
    padding: 1rem 0;
  }
  footer .w1200 .select {
    margin-top: 1rem;
  }
  header .banner .text .cn {
    font-size: 2rem;
  }
  header .banner .text .en {
    margin: 0;
  }
  header .banner .text .line {
    display: none;
  }
}