*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}
body,
html {
  margin: 0;
  padding: 0;
  background: #f0f2f5;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-family: 'Helvetica Neue', Helvetica, Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif !important;
}
/*去掉列表前面的小点*/
ul,
li {
  list-style: none;
}
/*图片没有边框 去掉图片底侧的空白缝隙*/
img {
  border: 0;
  /*ie6*/
  vertical-align: middle;
}
/*让button 按钮 变成小手*/
button {
  cursor: pointer;
}
/*取消链接的下划线*/
a {
  color: #3c7bff;
  text-decoration: none;
}
td {
  color: #5c5e61;
}
pre {
  margin: 0;
}
/* 单行超出隐藏 */
.ellipsis {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
/* 两行超出隐藏 */
.ellipsis2 {
  overflow: hidden;
  white-space: normal;
  text-overflow: ellipsis;
  /* 弹性伸缩盒子模型显示 */
  display: -webkit-box;
  /* 显示的文本行数 */
  -webkit-line-clamp: 2;
  /* 子元素排列方式 */
  -webkit-box-orient: vertical;
  word-break: break-all;
}
/* 三行超出隐藏 */
.ellipsis3 {
  overflow: hidden;
  white-space: normal;
  text-overflow: ellipsis;
  /* 弹性伸缩盒子模型显示 */
  display: -webkit-box;
  /* 显示的文本行数 */
  -webkit-line-clamp: 3;
  /* 子元素排列方式 */
  -webkit-box-orient: vertical;
  word-break: break-all;
}
/* 三行超出隐藏 */
.ellipsis5 {
  overflow: hidden;
  white-space: normal;
  text-overflow: ellipsis;
  /* 弹性伸缩盒子模型显示 */
  display: -webkit-box;
  /* 显示的文本行数 */
  -webkit-line-clamp: 5;
  /* 子元素排列方式 */
  -webkit-box-orient: vertical;
  word-break: break-all;
}
/* 水平垂直都居中 */
.center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
/* flex布局、侧轴中心对齐 */
.flex {
  display: flex;
  align-items: center;
}
.flex-start {
  display: flex;
}
.space-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.space-around {
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.space-evenly {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
}
.flex-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.flex-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start !important;
}
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
/* 右边距 */
.mr2 {
  margin-right: 0.125rem;
}
.mr4 {
  margin-right: 0.25rem;
}
.mr6 {
  margin-right: 0.375rem;
}
.mr8 {
  margin-right: 0.5rem;
}
.mr10 {
  margin-right: 0.625rem;
}
.mr12 {
  margin-right: 0.75rem;
}
.mr14 {
  margin-right: 0.875rem;
}
.mr16 {
  margin-right: 1rem;
}
.mr18 {
  margin-right: 1rem;
}
.mr20 {
  margin-right: 1rem;
}
/* 下边距 */
.mb2 {
  margin-bottom: 0.125rem;
}
.mb4 {
  margin-bottom: 0.25rem;
}
.mb6 {
  margin-bottom: 0.375rem;
}
.mb8 {
  margin-bottom: 0.5rem;
}
.mb10 {
  margin-bottom: 0.625rem;
}
.mb12 {
  margin-bottom: 0.75rem;
}
.mb14 {
  margin-bottom: 0.875rem;
}
.mb16 {
  margin-bottom: 1rem;
}
.mb18 {
  margin-bottom: 1.125rem;
}
.mb20 {
  margin-bottom: 1.25rem;
}
.mb22 {
  margin-bottom: 1.375rem;
}
.mb24 {
  margin-bottom: 1.5rem;
}
/* 字体尺寸 */
.fz12 {
  font-size: 0.75rem;
}
.tac {
  text-align: center;
}
.tal {
  text-align: left;
}
.tar {
  text-align: right;
}
.container {
  background-color: #fff;
  width: 100vw;
  overflow-x: hidden;
}
.header {
  height: 2.5rem;
  padding: 0 1rem;
  position: relative;
  top: 0;
  width: 100vw;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #3875f6;
}
.header #checkbox {
  display: none;
}
.header .toggle {
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3125rem;
  transition-duration: 0.5s;
}
.header .bars {
  width: 100%;
  height: 0.125rem;
  background-color: #fff;
  border-radius: 0.125rem;
}
.header #bar2 {
  transition-duration: 0.8s;
}
.header #bar1,
.header #bar3 {
  width: 70%;
}
.header #checkbox:checked + .toggle .bars {
  position: absolute;
  transition-duration: 0.5s;
}
.header #checkbox:checked + .toggle #bar2 {
  transform: scaleX(0);
  transition-duration: 0.5s;
}
.header #checkbox:checked + .toggle #bar1 {
  width: 100%;
  transform: rotate(45deg);
  transition-duration: 0.5s;
}
.header #checkbox:checked + .toggle #bar3 {
  width: 100%;
  transform: rotate(-45deg);
  transition-duration: 0.5s;
}
.header #checkbox:checked + .toggle {
  transition-duration: 0.5s;
  transform: rotate(180deg);
}
.header-fixed {
  position: fixed;
  top: 0;
}
.expand-panel {
  display: none;
}
.expanded {
  display: block;
  position: fixed;
  left: 0rem;
  top: 0rem;
  width: 100vw;
  height: 100vh;
  background: #ffffff;
  z-index: 99;
  overflow: hidden;
}
.expanded .bg-mask {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0rem;
  left: 0rem;
}
.expanded .nav-wrapper {
  position: relative;
  z-index: 101;
  width: 100%;
  height: 100%;
  padding-top: 3.75rem;
  font-size: 0.875rem;
  color: #3c8cff;
  overflow: scroll;
}
.expanded .nav-wrapper ol {
  width: 100vw;
  text-align: center;
  margin-bottom: 1.875rem;
  padding-left: unset;
  color: #3c8cff;
}
.expanded .nav-wrapper ol li:first-child {
  font-weight: 700;
  margin-bottom: 0.375rem;
}
.expanded .nav-wrapper .nav-item {
  margin-bottom: 1.75rem;
}
.logo {
  width: 13.625rem;
  height: 1.4375rem;
  background: url(../../../img/logoEn.png) no-repeat;
  background-size: 100%;
}
.tabs {
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
}
.tab:not(:last-child) {
  margin-right: 5rem;
}
.tab {
  position: relative;
  cursor: pointer;
  word-break: keep-all;
  /* border-bottom: .0625rem solid transparent;
   */
  padding-bottom: 0.5rem;
}
.tab::after {
  content: '';
  position: absolute;
  left: 1.125rem;
  top: auto;
  bottom: 0;
  right: auto;
  height: 0.125rem;
  width: 2rem;
  background-color: transparent;
}
.tab:first-child::after {
  left: 0rem;
}
.tab.active::after {
  background-color: #fff;
}
.block-title {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: 2.125rem;
}
.block-title::before {
  content: '';
  display: inline-flex;
  width: 3.75rem;
  height: 0.6875rem;
  margin-right: 0.75rem;
  background: url(../../../img/line_left.png) no-repeat;
  background-size: 100%;
}
.block-title::after {
  content: '';
  display: inline-flex;
  width: 3.75rem;
  height: 0.6875rem;
  margin-left: 0.75rem;
  background: url(../../../img/line_right.png) no-repeat;
  background-size: 100%;
}
.block-title .title-zh {
  font-size: 1.125rem;
  font-weight: 500;
  color: #000;
}
.block-title .title-en {
  font-size: 0.75rem;
  font-weight: 500;
  color: #33333350;
}
.page-banner {
  width: 100vw;
  height: 12.5rem;
  margin-bottom: 7.75rem;
  background: url(../../../img/about_banner.png) no-repeat;
  background-size: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-banner .banner-text {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  color: #fff;
}
.page-banner .banner-text .text-en {
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.5;
}
footer {
  width: 100vw;
  padding: 2.8125rem 0 5.625rem;
  background-color: #3c7bff;
  text-align: center;
}
footer .flex-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-bottom: 2.0625rem;
  border-bottom: 0.0625rem solid #ffffff20;
  margin-bottom: 1.25rem;
  width: 100vw;
}
footer .flex-column ol {
  flex: 1;
  width: 100%;
}
footer ol {
  font-size: 0.875rem;
  font-weight: normal;
  color: #fff;
  padding-left: unset;
  margin-bottom: 2.8125rem;
}
footer ol li {
  cursor: pointer;
  margin-bottom: 0.875rem;
  opacity: 0.7;
}
footer ol li a {
  color: #fff;
}
footer ol li:first-child {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
  opacity: 1;
}
footer .logo {
  width: 10rem;
  height: 2.1875rem;
  margin-bottom: 3.5rem;
}
footer .qrcode {
  text-align: center;
  font-size: 0.875rem;
  font-weight: normal;
  color: #fff;
}
footer .qrcode img {
  width: 6.25rem;
  height: 6.25rem;
}
footer .copyright {
  color: #fff;
  opacity: 0.7;
  font-size: 0.875rem;
  font-weight: normal;
}
footer .copyright a {
  color: #fff;
  opacity: 0.7;
}