/* .box {
  overflow-y: scroll
} */

/* 1. 顶部导航 */
.box .topnav {
  /* width: 100%; */
  /* background-color: rgba(1, 24, 53, 0.5); */
  background-image: url(../images/navbgi.jpg);
}

.logo {
  float: left;
  margin-top: 5px;
  margin-left: 20px;
}

/* 版心类型 */
.wrapper {
  width: 1500px;
  margin: 0 auto;
}

.wrapper .navs {
  height: 80px;
  text-align: right;
  line-height: 80px;
  font-size: 0;
}

.wrapper .navs li {
  display: inline-block;
  font-size: 16px;
  margin-right: 40px;
}

/* span标签触摸显示小手 */
.wrapper .navs li span {
  color: #ffffff;
  display: block;
  height: 60px;
  cursor: pointer;
}

.wrapper .navs li span:hover {
  border-bottom: 1px solid #ffffff;
}

/* 4. 底部区域 */
.version {
  margin: 0 auto;
  margin-top: 10px;
  height: 300px;
  width: 100%;
  padding-left: 8%;
  padding-right: 8%;
  display: flex;
  position: relative;
  /* padding: 30px 260px; */
  background-color: #000022;
  /* background-image: url(../images/content2-img3.png); */
  /* background-repeat: no-repeat;
  -webkit-background-size: cover;
  background-size: cover; */
  /* 盒子阴影 */
  /* box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
  -webkit-box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.5);
  -moz-box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.5); */
}

.container {
  display: flex;
  flex-direction: row;
}

.image-wrapper {
  display: flex;
  flex-direction: column;
  align-items: left;
  margin-right: 20px;
}

.image-wrapper img {
  margin-top: 30px;
  margin-right: 30px;
  width: 220px;
  height: 100px;
}

.image-wrapper p {
  margin-left: 10px;
  color: #fff;
  margin-top: 10px;
}

/* .version_mini {
  display: flex;
  width: 100%;
  height: 100px;
  border-top: 1px solid #fff;
  margin-top: 30px;
} */

.version_mini p {
  margin-left: 8%;
  color: #fff;
  position: absolute;
  left: 50px;
  bottom: 40px;
  font-size: 12px;
}

.version_mini .span {
  color: #fff;
  position: absolute;
  margin-left: 8%;
  left: 50px;
  bottom: 15px;
  font-size: 12px;
}

.version_box1 {
  padding-top: 3%;
  margin-right: 10px;
  display: inline-block;
  margin: 0 auto;
  /* width: 15%; */
  text-align: left;
  /* line-height: 20px; */
}

.version_box1 h4 {
  color: #fff;
  margin-bottom: 15px;
}

.version_box1 span {
  color: #fff;
  display: block;
  font-size: 12px;
  line-height: 18px;
  margin-bottom: 4px;
  /* span标签变小手 */
  cursor: pointer;
}

.swiper-slide {
  position: relative;
}

/* 遮罩层的样式 */
.overlay {
  position: absolute;
  display: flex;
  /* display: none; */
  align-items: center;
  text-align: left;
  left: 50%;
  top: 280px;
  transform: translate(-50%, -50%);
  padding-left: 30px;
  padding-top: 4%;
  padding-bottom: 20px;
  padding-right: 30px;
  /* 设为比轮播图项的z-index大 */
  z-index: 5;
  width: 1000px;
  height: 400px;
  /* white-space: nowrap; */
  /* 设置背景颜色和透明度 */
  background-color: rgba(251, 253, 255, 0.9);
  /* 初始时不显示 */
  display: none;
}

/* 资质 */
.overlay2 {
  position: absolute;
  display: flex;
  /* display: none; */
  align-items: center;
  text-align: left;
  left: 50%;
  top: 330px;
  transform: translate(-50%, -50%);
  padding-left: 30px;
  /* padding-top: 3%; */
  padding-bottom: 20px;
  padding-right: 30px;
  /* 设为比轮播图项的z-index大 */
  z-index: 5;
  width: 1000px;
  height: 500px;
  /* white-space: nowrap; */
  /* 设置背景颜色和透明度 */
  background-color: rgba(251, 253, 255, 0.9);
  /* 初始时不显示 */
  display: none;
}

.overlay-img,
.overlay-p p {
  /* display: inline-block; */
  float: right;
  color: rgb(0, 0, 0);
  text-align: left;
  margin-top: 14%;
  margin-left: 10px;
  transform: translateY(-50%);
  font-size: 14px;
  align-items: center;
}

/* .overlay-img-y {
  position: fixed;
  right: 32px;
  bottom: 20px;
} */

/* 中间区域 */
/* 中间2.1 */
.content-title1 {
  width: 100%;
  height: 200px;
  padding-top: 30px;
  background-color: #ddd;
  margin-top: 40px;
  margin-bottom: 30px;
  align-items: center;
  padding-left: 23%;
  padding-right: 23%;
}

.content-title1 h2 {
  text-align: center;
  margin-bottom: 20px;
}

.content-title1 p {
  text-align: left;
  font-size: 16px;
}

.list1 {
  width: 1500px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.item1 {
  width: 480px;
  height: 315px;
  margin-left: 15px;
  padding: 20px 30px;
  transition: all 0.5s;
  margin-bottom: 20px;
}

.item1:nth-child(3n) {
  margin-right: 0;
}

.item1 img {
  width: 100%;
}

.item1:hover {
  box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2);
  transform: translate3d(0, -4px, 0);
}

.item1 h3 {
  margin-top: 10px;
}

/* 中间2.2 */

.content-title2 {
  width: 100%;
  height: 200px;
  padding-top: 30px;
  background-color: #ddd;
  margin-top: 40px;
  margin-bottom: 30px;
  align-items: center;
  padding-left: 23%;
  padding-right: 23%;
}

.content-title2 h2 {
  text-align: center;
  margin-bottom: 20px;
}

.content-title2 p {
  text-align: left;
  font-size: 16px;
}

.list2 {
  width: 1500px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.item2 {
  width: 480px;
  height: 315px;
  margin-left: 15px;
  padding: 20px 30px;
  transition: all 0.5s;
  margin-bottom: 20px;
}

.item2:nth-child(3n) {
  margin-right: 0;
}

.item2 img {
  width: 100%;
}

.item2:hover {
  box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2);
  transform: translate3d(0, -4px, 0);
}

.item2 h3 {
  margin-top: 10px;
}

/* 中间2.3 */
.content-title3 {
  width: 100%;
  height: 200px;
  padding-top: 30px;
  background-color: #ddd;
  margin-top: 40px;
  margin-bottom: 30px;
  align-items: center;
  padding-left: 23%;
  padding-right: 23%;
}

.content-title3 h2 {
  text-align: center;
  margin-bottom: 20px;
}

.content-title3 p {
  text-align: left;
  font-size: 16px;
}

.list3 {
  width: 1500px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.item3 {
  width: 480px;
  height: 315px;
  margin-left: 15px;
  padding: 20px 30px;
  transition: all 0.5s;
  margin-bottom: 20px;
}

.item3:nth-child(3n) {
  margin-right: 0;
}

.item3 img {
  width: 100%;
}

.item3:hover {
  box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2);
  transform: translate3d(0, -4px, 0);
}

.item3 h3 {
  margin-top: 10px;
}

/* 中间2.4 */
.content-title4 {
  width: 100%;
  height: 200px;
  padding-top: 30px;
  background-color: #ddd;
  margin-top: 40px;
  margin-bottom: 30px;
  align-items: center;
  padding-left: 23%;
  padding-right: 23%;
}

.content-title4 h2 {
  text-align: center;
  margin-bottom: 20px;
}

.content-title4 p {
  text-align: left;
  font-size: 16px;
}

.list4 {
  width: 1500px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.item4 {
  width: 480px;
  height: 315px;
  margin-left: 15px;
  padding: 20px 30px;
  transition: all 0.5s;
  margin-bottom: 20px;
}

.item4:nth-child(3n) {
  margin-right: 0;
}

.item4 img {
  width: 100%;
}

.item4:hover {
  box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2);
  transform: translate3d(0, -4px, 0);
}

.item4 h3 {
  margin-top: 10px;
}

/* 中间2.5 */
.content-title5 {
  width: 100%;
  height: 100px;
  padding-top: 30px;
  background-color: #ddd;
  margin-top: 40px;
  margin-bottom: 30px;
  align-items: center;
  padding-left: 23%;
  padding-right: 23%;
}

.content-title5 h2 {
  text-align: center;
  align-items: center;
  margin-bottom: 20px;
}

.content-title5-img {
  align-items: center;
  text-align: center;
  height: 200px;
}

/* 回到顶部 */
#back-to-top {

  display: none;
  /* 初始时隐藏按钮 */
  position: fixed;
  bottom: 50%;
  right: 3%;
  width: 110px;
  height: 60px;
  z-index: 80;
}

#back-to-top img {
  width: 100%;
  height: 100%;
}