.clear{
clear: both;
}
/* 固定展示 */
.img-fixed {

    display: none;
}

.img-fixed-block {
    display: block;
    position: fixed;
    top: 0%;
    background-color: rgba(17, 16, 16, 0.808);
    right: 0;
    left: 0;
    height: 100%;
}

.img-fixed-none {
    display: none;
}

.img-fixed-row {

    position: absolute;
    top: 15%;
    left: 37.5%;
    width: 25%;
}
.gdt{
    overflow-y: scroll;
}
/*关闭*/
.close {
    position: absolute;
    top: 6px;
    right: 6px;
    height: 30px;
    width: 30px;
}

.img-img {
    
    width: 100%;
}

.img-img-display {
   width: 100%;
}

.img-more {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;

    height: 30px;
    display: block;
    
}
.img-more-x{
    display: none;
}

.img-more_a {
    width: 100%;
    background:  #2b252b;
    text-align: center;
    font-size: 20px;
    height: 30px;
    display: block;
    color: white;
    
}
.img-more-a{
    display: none;
}
.main_best{
    display: block;
width: 100%;
}
/*展示区*/
.display-mian {
    width: 100%;

}
/*论文*/
.thesis {
    float: left;
    padding-top: 100px;
    width: 100%;
}

.thesis-head h1 {
    font-size: 20px;
    text-align: center;
    width: 100%;
    display: block;
    padding-bottom: 20px;
    font-weight: 600;

}

.thesis-head-line {
    height: 1px;
    width: 100%;
    background-color: darkgray;
}

.thesis-mian {
    text-align: center;
}

.thesis-mian li {
    text-align: center;
    display: block;
    float: left;
    width: 25%;
    padding: 15px;
}

.thesis-mian li a {
    width: 80%;
    display: block;
    float: left;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-left: 10%;

}

.thesis-mian li img {
    width: 100%;
}
/*专利*/
.patent{
    padding-top: 30px;
    float: left;
    width: 100%;
}

.patent-head h1 {
    
    font-size: 20px;
    text-align: center;
    width: 100%;
    display: block;
    padding-bottom: 20px;
    font-weight: 600;
padding-top: 30px;
}
.patent-head-line {
    height: 1px;
    width: 100%;
    background-color: darkgray;
}
.patent-mian li{
list-style: none;
display: block;
width: 25%;
float: left;
padding:15px;
}
.patent-mian li img{
    width: 100%;

}

/*shipei*/
@media screen and (max-width: 736px) {
    .thesis {
        padding-top: 150px;
    }
    .thesis-mian li {
        text-align: center;
        display: block;
        float: left;
        width: 50%;
        padding-top: 20px;
    }
    .main{
        display: block;
         height: 5000px; 
    }

    .img-fixed-row {
        position: absolute;
        top: 15%;
        left: 5%;
        width: 90%;
    }
}