@charset "utf-8";

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  /* 为英文准备的 */
  word-break: break-word !important;
  hyphens: auto;
  -ms-hyphens: auto;
  -webkit-hyphens: auto;
  font-family: Microsoft YaHei;
}

img {
  width: 100%;
  object-fit: contain;
}

ul li {
  list-style-type: none;
}

input {
  outline: none;
  border: none;
}

a {
  text-decoration: none;
}

/* 全局变量 */
:root {
  /* 内容区的padding */
  --content-size-padding1: 0 3.6rem;
  /* 主色调 */
  --main-color: #f26522;
  /* 距离hearder的margin */
  --margin-top-header: 1.6rem;
  --mask-linear-gradient1: linear-gradient(to top,
      rgb(242, 101, 34, 0.9) 60%,
      transparent);
}

html {
  background-color: #fff;
}

.mtNav {
  margin-top: 1.6rem;
}

/* 头部样式 */
.hearder {
  position: fixed;
  top: 0;
  left: 0;
  background-color: #fff;
  z-index: 99;
  width: 100%;
}

.hearder .topmid {
  width: 100%;
  height: 0.36rem;
  padding: 0 3.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: #F2F2F2 solid 0.01rem;
}

.topmid .topleft {
  float: left;
  color: #999;
  font-size: 0.12rem;
}

.topmid .topright {
  float: right;
  color: #999;
  font-size: 0.12rem;
}

.topmid .topright a {
  color: #999;
  font-size: 0.12rem;
}

.hearder .top {
  width: 100%;
  height: 1rem;
  /* padding: var(--content-size-padding1); */
  padding: 0 3.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top .nav-logo {
  width: 4.2rem;
  height: 0.38rem;
  display: flex;
}

.top .search-container {
  display: flex;
  align-items: center;
}

.search-container .search-box {
  width: 1.8rem;
  height: 0.3rem;
  padding: 0 0.1rem;
  background-color: #eaeaea;
  border-radius: 0.15rem;
  display: flex;
  align-items: center;
}

.search-container .search-box .search-input {
  width: 1.4rem;
  height: 100%;
  background-color: #eaeaea;
  border-radius: 0.15rem;
  font-size: 0.12rem;
  color: #000;
}

.search-container .search-box .search-icon {
  width: 0.18rem;
  height: 0.2rem;
  flex-grow: 0;
  flex-shrink: 0;
  cursor: pointer;
}

.search-container .lang {
  margin-left: 0.22rem;
  color: #999999;
  font-size: 0.28rem;
  cursor: pointer;

}

/* 手机端的 */
.top .mb-search-container {
  /* display: flex; */
  align-items: center;
  display: none;
}

.top .mb-search-container .lang {
  width: 0.34rem;
  height: 0.34rem;
  object-fit: cover;
  margin-right: 0.2rem;
}

.top .mb-search-container .search-icon {
  width: 0.31rem;
  height: 0.32rem;
  object-fit: cover;
  margin-right: 0.2rem;
}

.top .mb-search-container .nav-icon {
  width: 0.41rem;
  height: 0.31rem;
  background: url('../images/nav.png') no-repeat center;
  background-size: 100% 100%;
}

.top .mb-search-container .nav-icon.active {
  background: url('../images/close.png') no-repeat center;
}

.hearder .nav {
  width: 100%;
  height: 0.6rem;
  /* background-color: var(--main-color); */
  background-color: #f26522;
  display: flex;
  justify-content: space-between;
  align-items: center;
  /* padding: var(--content-size-padding1); */
  padding: 0 3.6rem;
}

.nav .nav-item {
  color: #fff;
  font-size: 0.22rem;
  font-weight: 400;
  line-height: 0.3rem;
  height: 100%;
  cursor: default;
  display: flex;
  align-items: center;
  padding: 0 0.2rem;
  white-space: nowrap;
  cursor: pointer;
}

.nav .nav-item a{
  display: block;
  color: #fff;
}

.nav .nav-item:hover,
.nav .nav-item.active {
  background-color: #fbaa84;
}

.dropdown {
  position: relative;
}

.dropdown-content {
  display: none;
  width: 100%;
  background-color: #f26522;
  z-index: 1;
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  box-sizing: border-box;
  border-radius: 0 0 0.12rem 0.12rem;
  padding: 0.1rem;
}

.dropdown-content a {
  color: #fff;
  padding: 0.1rem 0.05rem;
  text-decoration: none;
  display: block;
  text-align: center;
  font-size: 0.18rem;
  white-space: wrap;
}

.dropdown-content a:hover {
  border-bottom: 0.01rem dotted #fbaa84;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropbtn:hover, .dropdown:hover .dropbtn {
  background-color: #fbaa84;
  color: #fff;
  border-radius: 0 0 0.12rem 0.12rem;
}

/* 页脚 */
.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 0.16rem;
  width: 100%;
  height: 0.86rem;
  border-top: 0.02rem solid #cccccc;
}

/* 公共样式 */
.main {
  /* margin-top: var(--margin-top-header); */
  margin-top: 1.96rem;
}

/* 二级页面下的小菜单 */
.subpage-nav {
  margin-bottom: 0.4rem;
  display: flex;
  width: 100%;
}

.subpage-nav .subpage-nav-item {
  font-size: 0.14rem;
  font-weight: 300;
  /* color: var(--main-color); */
  color: #f26522;
  white-space: nowrap;
}

.subpage-nav .subpage-nav-item:first-child {
  color: #999999;
}

.subpage-nav .subpage-nav-item+.subpage-nav-item::before {
  content: ">";
  margin: 0 0.1rem;
  /* color: var(--main-color); */
  color: #f26522;
}

/* 文章页分享样式 */
.share-mod {
  position: fixed;
  top: 3.7rem;
  right: 2.6rem;
  width: 0.6rem;
  height: 3.5rem;
  background: #fff;
  box-shadow: 0 0.03rem 0.07rem 0 rgba(0, 0, 0, 0.35);
  border-radius: 0.3rem;
  text-align: center;
}

.share-mod h3 {
  font-size: 0.16rem;
  font-weight: normal;
  color: #999;
  margin: 0.3rem 0 0.2rem;
}

.share-link {
  width: 0.27rem;
  margin: 0 auto;
}

.share-link li {
  width: 0.27rem;
  height: 0.27rem;
  margin-bottom: 0.18rem;
  font-size: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% auto;
  transition: all 0.5s;
  cursor: pointer;
}

.share-link li a {
  display: block;
  width: 0.27rem;
  height: 0.27rem;
}

/* 微信 */
.share-wx {
  background-image: url(../images/dyt-wx.png);
}

.share-wx:hover {
  background-image: url(../images/dyt-wx-color.png);
}

/* 微博 */
.share-wb {
  background-image: url(../images/dyt-wb.png);
}

.share-wb:hover {
  background-image: url(../images/dyt-wb-color.png);
}

/* qq */
.share-qq {
  background-image: url(../images/dyt-qq.png);
}

.share-qq:hover {
  background-image: url(../images/dyt-qq-color.png);
}

/* facebook */
.share-fb {
  background-image: url(../images/dyt-facebook.png);
}

.share-fb:hover {
  background-image: url(../images/dyt-facebook-color.png);
}

/* twitter */
.share-tt {
  background-image: url(../images/dyt-twitter.png);
}

.share-tt:hover {
  background-image: url(../images/dyt-twitter-color.png);
}

/* linkin */
.share-in {
  background-image: url(../images/dyt-in.png);
}

.share-in:hover {
  background-image: url(../images/dyt-in-color.png);
}

/* 微信弹出二维码 */
.wx-pop-mod {
  position: fixed;
  top: 35%;
  left: 50%;
  margin-left: -1.8rem;
  width: 3.6rem;
  padding: 0.2rem;
  box-sizing: border-box;
  border: 1px solid #ddd;
  border-radius: 0.1rem;
  background: #fff;
}

.wx-pop-mod h3 {
  font-size: 0.26rem;
  font-weight: normal;
  text-align: center;
  color: #444;
  margin-bottom: 0.1rem;
}

.weixin_share_close_btn {
  transform: rotate(45deg);
  position: absolute;
  top: 7px;
  right: 7px;
  font-size: 26px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #333;
}

.wx-pop-mod img {
  display: block;
}

/* ===========分页样式===分页样式===分页样式===分页样式===分页样式===分页样式===分页样式============= */
.pages {
  width: 96.5%;
  font-size: 0.16rem;
  margin: 0.4rem 0 0;
  text-align: right;
}

.pages li {
  display: inline-block;
  margin: 0 0.08rem;
  font-size: 0.16rem;
}

.page a {
  color: #999;
  cursor: pointer;
  padding: 0.05rem 0.12rem;
  text-decoration: none;
  border-radius: 0.1rem;
  display: block;
}

.page a:hover,
.page-active a {
  background: #f26e22;
  color: #fff;
}
.page-active{
  background: #e36227;
  color: #fff;
  border-radius: 100px;
  padding: 0 0.05rem;
}

.page-previous a,
.page-next a {
  color: #999;
  background: #fff;
  padding-top: 0.1rem;
  padding-bottom: 0.1rem;
}

.page-previous a:hover,
.page-next a:hover {
  color: #f26e22;
}

.page-previous a {
  padding-left: 0.5rem;
  background: url(//www.sciep.com/2023/images/prev-page.png) no-repeat left center;
}

.page-next a {
  padding-right: 0.5rem;
  background: url(//www.sciep.com/2023/images/next-page.png) no-repeat right center;
}

@media (min-width: 1200px) {

  .page {
    position: inherit !important;
  }

  .title1 {
    font-size: 0.785vw !important;
    line-height: 150% !important;
  }

  .jj1 {
    font-size: 0.625vw !important;
  }
}

/* ===========分页样式===分页样式===分页样式===分页样式===分页样式===分页样式===分页样式==========*/


/* 手机端 */
@media screen and (max-width: 769px) {
  .pages li{font-size: 0.26rem;}
  /* 头部 */
  .hearder .topmid{
    display: none;
  }

  .hearder .top {
    padding: 0 0.3rem;
    height: 1.3rem;
  }

  .top .search-container {
    display: none;
  }

  .top .mb-search-container {
    display: flex;
  }

  .hearder .nav {
    display: none;
  }

  /* 页脚 */
  .footer {
    height: 1rem;
  }

  /* 内容 */
  .main {
    margin-top: 1.3rem;
  }

  /* 分页 */
  .pages {
    text-align: center;
  }

  .page a,
  .page-previous a,
  .page-next a {
    font-size: 0.2rem;
  }

  .page-active{
    padding: 0 0.1rem;
  }

  /* 当前位置 */
  .subpage-nav .subpage-nav-item {
    font-size: 0.18rem;
  }

  /* 分享*/
  .share-mod {
    position: relative;
    top: 0;
    right: 0;
    width: auto;
    border: none;
    box-shadow: none;
    height: 0.4rem;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    margin-bottom: 0.1rem;
  }

  .share-mod h3 {
    font-size: 0.2rem;
    margin: 0;
  }

  .share-mod h3:after {
    content: ":";
  }

  .share-link {
    display: flex;
    flex-direction: row;
    margin: 0;
    width: auto;
  }

  .share-link li {
    margin: 0 0.1rem;
    transition: none;
  }
}


/* 手机端的下拉菜单 */
.mb-menu-container {
  position: fixed;
  left: 0;
  top: 1.3rem;
  background-color: #fff;
  z-index: 999;
  width: 100%;
  height: calc(100vh - 1.3rem);
  overflow-y: auto;
  padding: 0 0.15rem;
  box-sizing: border-box;
  display: none;
}

.mb-menu-container .menu-box {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* 一级目录 */
.mb-menu-container .menu-box .menu-item,
.mb-menu-container .menu-box .sec-menu-item {
  display: flex;
  flex-direction: column;
  padding: 0.1rem 0;
  border-bottom: 1px solid #D2D2D2;
}

.menu-box .menu-item.active .menu-item-title {
  color: #f26522;
}

.menu-box .menu-item.active .menu-item-title::after {
  transform: rotate(90deg);
}

.menu-box .menu-item .menu-item-title,
.menu-box .menu-item .sec-menu-item-title {
  color: #333;
  font-size: 0.34rem;
  display: flex;
  width: 100%;
  position: relative;
  padding: 0.1rem 0 0.1rem 0.1rem;
}

.menu-box .menu-item .menu-item-title::after,
.menu-box .menu-item .sec-menu-item-title::after {
  content: "";
  display: block;
  position: absolute;
  right: 0.15rem;
  top: 0.21rem;
  background: url('../images/nav-l-arrow.png') no-repeat;
  background-size: 100% auto;
  width: 0.2rem;
  height: 0.2rem;
}

/* 二级目录 */
.mb-menu-container .menu-box .sec-menu-box {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: #f8f8f8;
  box-sizing: border-box;
  padding: 0.4rem;
  margin-top: 0.2rem;
  display: none;
}

.mb-menu-container .menu-box .sec-menu-item:last-child {
  border-bottom: none;
}

.menu-box .menu-item .sec-menu-item-title::before {
  content: "";
  position: relative;
  left: 0.15rem;
  top: 0.1rem;
  background: url('../images/small-arrow.png') no-repeat;
  background-size: 100% auto;
  width: 0.05rem;
  height: 0.1rem;
  margin-right: 0.3rem;
  transform: scale(1.3);
}

.mb-menu-container .menu-box .sec-menu-box a{
  display: block;
  font-size: 0.32rem;
  color: #333;
   margin-bottom: 0.5rem;
}

.mb-menu-container .menu-box .sec-menu-box a:last-child{
  margin-bottom: 0;
}