/* 清除默认边距 */
*{  /* 全局选择器 */
    margin: 0;
    padding: 0;
}
/* 清除a标签默认样式 */
a{
    text-decoration: none;
    color: #101111ce;
}
/* 清除li标签默认样式 */
li{
    list-style: none;
}
/* 以下代码保证了在页面缩小时不会因元素的浮动而造成元素变形 */
body{
    width: 1500px;
    margin: 0 auto;
    height: 1150px;
    min-width: 1200px;
}



.header{  /* 类选择器 */
    position: relative;  /* 子元素加了绝对定位，则父元素一般加相对定位 */
    width: 100%;
    height: 118px;
    background: url(../images/header_background.jpg) no-repeat;  /* 加背景图片 */
    background-size: 100% 100%;  /* 设置背景图片所占标签大小 */
    margin-top: 10px;
    border-bottom: 5px solid #fd7d02
}
.header img{
    position: absolute;  /* 加了定位以后脱离文档流，则需要使用top和left等属性来调整控件所在位置 */
    top: 1%;
    left: 8%;
}
.header .teamtitle p{
    font-size: 30px;
    font-family: 楷体;
    color: white;  /* 字体颜色 */
    float: left;
    margin: 3% 0px 0 17%;
}
.header .school{
    font-size: 14px;
    font-family: 微软雅黑;
    color: white;  /* 字体颜色 */
    float: right;
    margin: 4% 11% 0 0;
}
.header .school a{
    color: white;
    cursor: pointer;  /* 改变鼠标符号 */
    float: left;
}
.header .school a:hover{  /* 鼠标悬浮于控件上时的效果 */
    border-bottom: 1px solid white;
}
.header .school p{
    color: white;
    float: left;
    margin: 0 3px;
}



/* 导航栏整体样式 */
.nav {
    width: 80%;
    height: 39px;
    margin: 0 auto;
    background-color: #2f72c0;
    position: relative; /* 相对定位，用于子元素的绝对定位参考 */
}

/* 导航栏列表样式 */
.nav ul {
    display: flex;
    justify-content: space-between;
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 导航栏列表项样式 */
.nav li {
    text-align: center;
    font-size: 15px;
    font-family: 微软雅黑;
    height: 39px;
    width: 15%;
    line-height: 39px;
    transition: background-color 0.3s ease; /* 过渡效果，使颜色变化更平滑 */
    position: relative; /* 相对定位，用于子菜单的绝对定位参考 */
    margin-left: 1%;
    margin-right: 1%;
}

/* 导航栏链接样式 */
.nav li a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 0 1px;
}

/* 鼠标悬停时导航栏列表项样式 */
.nav li:hover {
    background-color: #0a5894;
}

/* 下拉菜单样式 */
.nav .down_list ul {
    display: none; /* 初始状态下隐藏下拉菜单 */
    position: absolute;
    top: 100%; /* 下拉菜单显示在父元素下方 */
    left: 0;
    z-index: 99999;
    background-color: #2f72c0;
    width: 100%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); /* 添加阴影效果 */
}

/* 下拉菜单列表项样式 */
.nav .down_list ul li {
    height: 39px;
    width: 100%;
    opacity: 1;
    transition: background-color 0.3s ease;
    margin: 0;
}

/* 鼠标悬停时下拉菜单列表项样式 */
.nav .down_list ul li:hover {
    background-color: #0a5894;
}

/* 鼠标悬停时显示下拉菜单 */
.nav .down_list:hover ul {
    display: block;
}

/* 吸顶效果 */
.nav.fix {
    position: fixed;
    z-index: 99999;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    width: 80%;
    border-bottom: 2px solid #fd7d02;
    animation: searchTop 0.5s ease-in-out;
}

/* 吸顶动画 */
@keyframes searchTop {
    0% {
        top: -50px;
    }
    100% {
        top: 0;
    }
}

/* 导航栏下方内容的间距 */
.nav2 {
    margin-top: 60px;
    z-index: 99999;
}


.content{
    width: 80%;
    height: 1450px;
    /* background-color: antiquewhite; */
    margin: 0 auto;
}

.content .title{
    position: absolute;
    top: 160px;
    width: 1200px;
    height: 55px;
    line-height: 55px;
    border-bottom: 2px solid #ffb64d;
    font-size: 15px;
    z-index: 3;
}
.content .title img{
    position: absolute;
    margin-top: 19px;
    margin-left: 15px;
}
.content .title .main{
    margin-left: 44px;
    color: #999999;
}
.content .title span{
    color: #999999;
}
.content .title a{
    color: #0b6cb8;
}

.content .main_content .left{
    width: 230px;
}
.content .main_content .left li{
    list-style: none;
    margin: 7px 0 7px 0;
    height: 53px;
    width: 230px;
    background-color: #f5f6fa;
    text-align: center;
    line-height: 53px;
}
.content .main_content .left .achievements{
    height: 53px;
    width: 230px;
    margin-top: 76px;
    line-height: 53px;
    text-align: center;
    font-family: 微软雅黑;
    background: url(../images/content_background.png) no-repeat 0 0;
    color: white;
    font-size: 20px;
}
.content .main_content .left .achievements_son{
    display: inline-block;
    list-style: none;
    margin: 4px 0px 4px 4px;
    height: 30px;
    width: 48px;
    background-color: #f5f6fa;
    opacity: .75;
    text-align: center;
    line-height: 30px;
}
.content .main_content .left li a{
    display: block;
    color: #666666;
    transition: .3s;
}
.content .main_content .left li a:hover{
    background-color: #0b6cb8;
    color: white;
}
.content .main_content .left li .selected{
    display: block;
    color: white;
    background-color: #0b6cb8;
    transition: .3s;
}



.content .main_content{
    position:absolute;
    width: 79%;
    z-index: 0;
}

.content .main_content .right{
    position: absolute;
    top: 75px;
    left: 240px;
    width: 970px;
}

.content .main_content .right .top{
    width: 100%;
    height: 80px;
    line-height: 80px;
    text-align: center;
    margin-bottom: 5px;
    border-left: 1px dashed #eee;
}
.content .main_content .right .topzhuanli{
    width: 100%;
    height: 80px;
    line-height: 80px;
    text-align: center;
    margin-bottom: 35px;
    border-left: 1px dashed #eee;
}
.content .main_content .right .h2{
    font-size: 24px;
    font-family: 楷体;
    font-weight: normal;
}

.content .main_content .right .bottom{
    width: 100%;
    height: 1108px;
    border-left: 1px dashed #eee;
}
.content .main_content .right .bottomjijin{
    width: 100%;
    height: 1108px;
    border-left: 1px dashed #eee;
}
.content .main_content .right .bottom a{
    display: block;  /* 将其变为块级元素 */
    width: 100%;
    height: 100px;
    margin: -30px 0 -5px 0;
    padding-left: 11px;
    font-size: 14px;
    font-family: 微软雅黑;
    text-indent: 3mm;  /* 给文字加首行缩进 */
    line-height: 25px;  /* 行间距 */
    color: #666666;
}
.content .main_content .right .bottomjijin a{
    display: block;  /* 将其变为块级元素 */
    width: 100%;
    height: 100px;
    margin: -50px 0 -5px 0;
    padding-left: 11px;
    font-size: 14px;
    font-family: 微软雅黑;
    text-indent: 3mm;  /* 给文字加首行缩进 */
    line-height: 25px;  /* 行间距 */
    color: #666666;
}
.content .main_content .right .bottom a .toptop{
    margin: 8px 0 10px 0;
}     
.content .main_content .right .bottom a:hover{
    color: #63b1f5;
    transition: .5s;
}

.content .main_content .right .change_page{
    position: relative;
    top: 0px;
    width: 100%;
    height: 40px;
    border-top: 2px dashed #eee;
}
.content .main_content .right .change_page li{
    position: absolute;
    top: 10px;
    width: 25px;
    height: 25px;
    text-align: center;
    line-height: 25px;
    display: inline-block;
    border: 0.01333rem solid #ddd;
}
.content .main_content .right .change_page li a{
    display: block;
    width: 25px;
    height: 25px;
}
.content .main_content .right .change_page .one{
    left: 28%;
}
.content .main_content .right .change_page .two{
    left: 32%;
}
.content .main_content .right .change_page .three{
    left: 36%;
}
.content .main_content .right .change_page .four{
    left: 40%;
}
.content .main_content .right .change_page .five{
    left: 44%;
}
.content .main_content .right .change_page .six{
    left: 48%;
}
.content .main_content .right .change_page .seven{
    left: 52%;
}
.content .main_content .right .change_page .eight{
    left: 56%;
}
.content .main_content .right .change_page .nine{
    left: 60%;
}
.content .main_content .right .change_page .ten{
    left: 64%;
}
.content .main_content .right .change_page .eleven{
    left: 68%;
}
.content .main_content .right .change_page .twelve{
    left: 72%;
}
.content .main_content .right .change_page .selected{
    background-color: #0a5894;
}
.content .main_content .right .bottom .lunwenStyle{
    display: block;  /* 将其变为块级元素 */
    width: 98%;
    height: 65px;
    margin: 40px 0 -5px 0;
    padding-left: 11px;
    font-size: 17px;
    font-family: 微软雅黑;
    text-indent: 0;
    line-height: 25px;  /* 行间距 */
    color: black;
    border-top: 2px dashed #eee;
    border-left: 1px dashed #eee;
}
.content .main_content .right .bottom .toplunwen{
    margin-top: 5px;
} 
.content .main_content .right .bottom div{
    padding-left: 11px;
    font-size: 13px;
}
.content .main_content .right .bottom .journal{
    color: #0000008A;
    padding-left: 11px;
    margin: 4px 0 0 0;
    font-size: 13px;
}
.content .main_content .right .bottom .DOI{
    display: block;  /* 将其变为块级元素 */
    width: 100%;
    height: 20px;
    line-height: 28px;
    color: #0000008A;
    margin: 0px 0 4px 0;
    padding-left: 0;
    font-size: 13px;
}

.right{
    z-index: 999;
}

/* 吸顶效果 */
.leffix{
    position:fixed;
    z-index: 0;
    top:15px;
    width:80%;
    animation: searchTop_ 0.5s ease-in-out;
}

@keyframes searchTop_{
    0%{
        top:-50px;
    }
    100%{
        top: 10px;
    }
}

.nav2{
    margin-top: 60px;
    z-index: 99999;
}


.tail {
    width: 100%;
    background-color: #326aab;
    margin: 0 auto;
    margin-top: 100px;
    padding: 37px 0 20px 0;
    display: flex; /* 使用 flexbox 布局 */
    justify-content: space-between; /* 子元素左右排列 */
    align-items: flex-start; /* 子元素顶部对齐 */
}

.logo {
    flex: 0 0 auto; /* 不伸缩 */
    margin-left: 7%; /* 左边距 */
    margin-top: -10px;
}

.info {
    flex: 1; /* 自动填充剩余空间 */
    display: flex;
    flex-direction: column; /* 子元素从上到下排列 */
    color: white;
    font-family: "Lato", sans-serif, 微软雅黑;
    font-size: 13px;
    margin-right: 10%; /* 右边距 */
}

.info p {
    margin-bottom: 10px; /* 段落之间的间距 */
    margin-left: 7%;
}

.info a {
    color: white;
    text-decoration: none;
    margin-left: 7%;
}