:root {
    --modal-bg-color: rgba(0, 0, 0, 0.9); /* 模态框背景颜色 */
}

.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1000; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgba(0, 0, 0, 0.9); /* Black w/ opacity */
    justify-content: center; /* Center horizontally */
    align-items: center; /* Center vertically */
    display: flex; /* Use flexbox for centering */
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%; /* Max width of the image */
    max-height: 90%; /* Max height of the image */
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

/* 其他样式... */
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    font-family: Open Sans, icomoon, sans-serif;
}
body,html{
    width: 100%;
    height: 100%;
    scroll-behavior: smooth;
}
.center{
    width: 1200px;
    margin: 0 auto;
}
header{
    box-shadow: 0 0 10px rgba(0,0,0,0.15);
    width: 100%;
    height: 100px;
    background-color: #fff;
    border-bottom: 1px solid #d6d6d6;
   
}
.top{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.logo {
    font-size: 25px;
}
.top-r{
  display: flex;
}
.top-r input{
    margin-right: 100px;
    width: 280px;
    height: 45px;
    padding-left: 10px;
}
.ss{
    position: relative;
    width: 280px;
    height: 45px;
    margin-right: 100px;
}
.wbss{
    position: absolute;
    right: 0;
    top: 0;
    width: 45px;
    height: 45px;
    background-color: rgb(118, 118, 118);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
   
}
.wbss img{
    height: 30px;
}
.login{
    display: flex;
    align-items: center;
}
.login a{
    text-decoration: none;
    color: #002c40;
    font-weight: bold;
}
/* 轮播图 */
.carousel-box{
    width: 1076px;
    height: 180px;
    margin: 0 auto;
}
.carousel-container {
    position: relative;
    width: 100%;
    height: 174px;
    overflow: hidden;
    margin: 0 auto;
  }
  
  .carousel-slide {
    display: flex;
    transition: transform 0.5s ease;
  }
  
  .carousel-image {
    min-width: 100%;
    height: 100%;
    
  }
  
  .carousel-prev, .carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    cursor: pointer;
    padding: 10px;
  }
  
  .carousel-prev {
    left: 10px;
  }
  
  .carousel-next {
    right: 10px;
  }
  
  .carousel-indicators {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
  }
  
  .carousel-dot {
    display: inline-block;
    width: 40px;
    height: 3px;
    background-color: rgba(223, 98, 98, 0.4);
    margin: 0 5px;
    cursor: pointer;
  }
  
  .carousel-dot.active {
    background-color: red;
  }

.banner{
    margin-top: 20px;
}
.recent-issues{
    margin-top: 20px;
}
.recent-issues h2{
    text-align: center;
}
.recent-issues-list{
    flex: 1;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;

}
.recent-issues-item{
    width: calc((100% - 60px)/4);
    margin-right: 20px;
    display: flex;
    /* align-items: center; */
    justify-content: center;
}
.recent-issues-item:nth-child(4n){
    margin-right: 0;
}
.recent-issues-item img{
    height: 150px;
    border-radius: 10px;
}
.recent-issues-pic{
    margin-top: 20px;
   
    
}
/* .recent-issues-left img{
    height: 300px;
    width: 200px;
} */
.issues-info{
    display: flex;
    flex-direction: column;
    padding: 10px;
    justify-content: center;
}
.issues-info a{
    text-decoration: none;
    color: #006699;
    font-weight: 400px;
    font-size: 14px;
}
.issues-info span{
    color: #1c1d1e;
    font-size: 13px;
}
.went-box{
    display: flex;
}
.went-l{
    width: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-right: 50px;
}
.went-l img{
    width: 180px;
}
.went-l a{
    color: #1c1d1e;
    font-weight: 400px;
    font-size: 14px;
    text-decoration: none;
}
.dl{
    font-family: Verdana, Geneva, sans-serif;
}
.email-box{
    margin-top: 20px;
}
.views{
    display: flex;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 12px;
    align-items: center;
    margin-top: 10px;
}
.views .views-img{
   width: 60px;
}
.views .cc{
    width: 50px;
    height: 25px;
}
.author-box {
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size: 16px;
    font-style: normal;
    font-weight: normal;
    line-height: normal;
    margin: 10px 0;
}
.intro-box{
    font-family: Verdana, Geneva, sans-serif;
    font-size: 10px;
}
.more-a{
    display: flex;
    align-items: center;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 11px;
    font-style: normal;
    font-weight: normal;
}
.more-a span,.Copy{
    border: 1px solid #b5cdd9;
    border-radius: 6px;
    padding: 5px 8px;
    margin: 3px;
    text-decoration: none;
    display: inline-block;
    background-color: #EDF5FE;
    font-family: Verdana, Geneva, sans-serif;
    font-style: normal;
    font-size: 12px;
    cursor: pointer;
}
.more-a-p{
    display: none;
}
.more-a-close{
    display: none;
}
.citation{
    border: 1px solid #b5cdd9;
    margin: 3px;
    padding: 3px;
    background-position: 1px 1px;
    height: auto;
    background-color: rgb(248, 249, 250);
    border-radius: 3px;
    font-size: 12px;
}
.mr{
    display: flex;
    justify-content: end;
}
.main-article{
    display: flex;
}
.tool-box{
    flex: 1;
    /* background-color: #f0f0f0; */
    background-color: #fff;
}

div#sticker {
    border: 1px solid #b5cdd9;
    background-image: url(/ms/images/bg_divhead.gif);
    background-repeat: repeat-x;
    background-position: 2px bottom;
    padding: 10px;
    background-color: #FAFAFA;
    width: 130px;
    text-decoration: none;
    color: #7D6202;
    overflow: hidden;
    text-align: center;
    margin-top: 10px;
    margin-bottom: 10px;
    margin-left: 2px;
}
.article-box{
    flex: 3;
    
}
h1{
    font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
    font-size: 19px;
    font-style: normal;
    line-height: normal;
    font-weight: bold;
    height: auto;
    color: #FFFFFF;
    background-color: #3F8FC0;
    padding-left: 2px;
}
.abstract{
    display: flex;
}
.abstract-l{
    flex: 1;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 13px;
    padding: 0px;
}
.abstract-r img{
    width: 300px;
}
.Introduction,.Methods,.results,.conclusion,.discussion,.abbreviations{
   padding: 5px; 
}
.ab-p{
    font-family: Verdana, Geneva, sans-serif;   
    margin-bottom: 10px;
    font-size: 13px;
}
h4{
        font-family: "Trebuchet MS", sans-serif;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    color: #006699;
    margin: 5px 0;
}
.results img{
    width: 200px;
    margin-top: 10px;
}
.figure{
    background-color: #EAF2F4;
    border: 1px solid #94E2FC;
    height: auto;
    padding: 3px;
    Overflow: auto;
    margin-top: 2px;
    margin-right: 0px;
    margin-bottom: 2px;
    margin-left: 0px;
}
.figure {
    display: flex;
    flex-direction: column;
}
.figure-content{
    font-size: 12px;
    font-family: Verdana, Geneva, sans-serif;
    margin: 5px 0;
}

/* Modal styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1000; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
}

.modal-content {
    margin: auto;
    display: block;
    width: 80%; /* Width of the image */
    max-width: 700px; /* Max width */
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

.acknowledgements span{
    font-size: 12px;
    font-family: Verdana, Geneva, sans-serif;
    margin: 5px 0;
}
.references-item{
    font-family: "Arial", Helvetica, sans-serif;
    font-size: 13px;
    color: #003399;
    margin: 8px 0;
}
.tool-list{
    height: 48px;
    width: 100%;
    background-color: #fff;
    border-bottom: 1px solid #d6d6d6;
}
.tool-list{
    display: flex;
    align-items: center;
    justify-content: center;
}
.tool-item{
    cursor: pointer;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-family: Verdana, Geneva, sans-serif;
    
}
.tool-item img{
    width: 20px;
    height: 20px;
    margin: 5px 0;
}

.tabs-box{
    /* margin-top: 20px; */
    background-color: #fff;
    border-bottom: 1px solid #d6d6d6;
}
 /* 选项卡容器样式 */
 .tabs {
    display: flex; /* 弹性布局 */
    
  }
  /* 单个选项卡样式 */
  .tab {
    padding: 5px; 
    cursor: pointer; /* 指针样式 */
    margin-right: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    font-size: 13px;
    font-family: Verdana, Geneva, sans-serif;

  }
  .tab img{
    width: 15px;
    height: 15px;
    
  }
  /* 激活的选项卡样式 */
  .tab.active {
    padding: 10px 20px; /* 内边距 */
    border-bottom: 2px solid #003399;
   
 
  }
  /* 选项卡内容样式 */
  .tab-content {
    display: none; /* 默认隐藏 */
  }
  /* 激活的选项卡内容样式 */
  .tab-content.active {
    display: block; /* 显示 */
  }
  #personal-info,#address-management,#account-settings,#fourt-settings{
    padding: 20px;
    height: 1000px;
    width: 350px;
    overflow: auto;
    background-color: #f0f0f0;
  }
#personal-info .figure-img{
    width: 100%;
    /* height: 100%; */
}
.figure-title{
    margin-bottom: 10px;
}
.figure-content{
    margin: 10px 0;
}
.figure-viewer{
    display: flex;
    align-items: center;
    justify-content: center;
}
.figure-viewer img{
    width: 15px;
    height: 15px;
}
.nav-bar-container{
    /* display: flex;
    justify-content: center; */
    margin-top: 20px;
    margin-left: 10px;
}
.nav-box{
    padding: 10px;
    background-color: rgb(248, 249, 250);
    border: 1px solid rgb(204, 204, 204);
    border-radius: 8px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 2px 4px;
    width: 170px;
    z-index: 1000;
   
   
}

.nav-box.fixed {
    position: fixed;
    top: 20px;
    /* margin-left: 800px; */
    border-radius: 8px;
    transition: all 0.3s ease;
}
.nav-container {
    position: relative;
    width: 140px;
}
.nav-list{
    display: flex;
    list-style: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.nav-item{
    margin: 5px 0;
}
.nav-item{
    flex: 1;
    text-decoration: none;
    color: #00264D;
    background-color: #e9ecef;
    border: 1px solid #ced4da;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    
    width: 100%;
}
.nav-item:last-child{
    margin-right: 0;
}
.nav-item a{
    padding: 5px;
    text-decoration: none;
    font-size: 15px;
    font-family: Verdana, Geneva, sans-serif;
    color: #00264D;
}
.new-nav{
    width: 1200px;
    margin: 0 auto;
    height: 58px;
    background-color: #002c40;
    margin-top: 30px;
}
.new-nav-box{
    display: flex;
    justify-content: space-between;
    height: 100%;
    align-items: center;

}
.nav-list-bar{
    display: flex;
    list-style: none;
    color: #fff;
}
.nav-item-bar{
    margin: 0 10px;
    position: relative;
}

.er-menu li a {
    color: #656565;
  }
.er-menu{
    display: none; /* 默认隐藏 */
    position: absolute;
    top: 175%;
    left: 0;
    border: 1px solid #123d80;
    background-color: #fff;
    min-width: 120px;
    z-index: 1;
    border-radius: 0 0 5px 5px;
   
}
.er-item{
    
    text-align: center;
}
.er-item:hover{
    background-color: #002c40;
    color: #fff;
}
.er-item:hover a{
    color: #fff;
}
/* .nav-item:hover .er-menu{
    display: block;
  
} */
.nav-item-bar.active .er-menu {
    display: block; /* 当父元素有active类时显示 */
  }
.er-menu li {
    padding: 12px 16px;
  }
.nav-item-bar a{
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}
.nav-pic img{
    height: 30px;
    width: 30px;
    margin-right: 10px;
}

footer{
    background-color: #002c40; 
    color: #fff;
    
    width: 100%;
    padding: 30px;
}

@media (max-width: 767px) {
    footer {
        display: none; /* 隐藏footer */
    }
}
.footer-list{
    list-style: none;
    padding-top: 20px;
    flex: 1;
}
.footer-item{
    margin-bottom: 10px;
}
.footer-item a{
    color: #fff;
    text-decoration: none;
    font-size: 14px;
   
}
.footer-item-custom a{
    font-size: 16px;
}
.all-list{
    display: flex;
}
.bai-line{
    width: 100%;
    height: 1px;
    background-color: #fff;
    margin: 20px 0;
}
.db-f{
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.db-f img{
    height: 20px;
}
.db-f-bq{
    width: 350px;
    font-size: 12px;
}