body {
  /* width: 3840px;
  height: 5834px; */
  /* height: calc((1680 / 3840) * 5834px); */
  min-width: 1000px;
}
ul {
  margin: 0;
  padding: 0;
}
ul li {
  list-style: none;
}
a > span {
  visibility: hidden;
}
.page_container {
  width: 1200px;
  height: 1823px;
  margin: 0 auto;
  background: url(bg.jpg) no-repeat top center;
  background-size: contain;
  display: flex;
  flex-direction: column;
  position: relative;
}
.page_nav {
  flex-shrink: 0;
  width: 100%;
  height: 87px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}
.page_nav_content {
  width: calc(50% - 50px);
  height: 100%;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page_nav_content:first-of-type {
  padding: 0 100px 0 155px;
}
.page_nav_content:last-of-type {
  padding: 0 85px 0 70px;
}
.page_nav_title {
  height: 100%;
  width: 120px;
  font-size: 12px;
  font-weight: bold;
  color: red;
  text-decoration: none;
  letter-spacing: 2px;
  /* background: rgba(0, 0, 0, 0.5); */
}
.page_banner {
  flex-shrink: 0;
  height: 700px;
  position: relative;
}
.page_banner_absolute {
  height: 240px;
  width: 353px;
  position: absolute;
  left: 0;
  top: 295px;
}
.page_swpier {
  flex-shrink: 0;
  height: 738px;
  position: relative;
  overflow: hidden;
}
.page_swiper_absolute {
  height: 156px;
  width: 200px;
  position: absolute;
  left: 520px;
  bottom: 110px;
}
.page_swpier_fixed {
  height: 60px;
  width: 120px;
  position: absolute;
  right: 0;
  bottom: 0;
}
.page_about {
  flex-shrink: 0;
  height: 130px;
  padding: 0 210px;
  display: flex;
  justify-content: space-between;
}
.page_about_title {
  height: 100%;
  width: 230px;
}
.page_footer {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  overflow: hidden;
}
.page_footer_content {
  flex-shrink: 0;
  width: 760px;
  height: 100%;
  padding-left: 10px;
  box-sizing: border-box;
  background: #c41d2e;
  display: flex;
  align-items: center;
}
.page_footer_list,
.page_footer_list a {
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 400;
  font-size: 11px;
  line-height: 22px;
  color: #fff;
  letter-spacing: 1px;
  text-decoration: none;
  user-select: none;
}
.page_footer_list a > span {
  visibility: visible;
}