/* 图片列表页样式表 picture-list.css */

/* 图片列表： start */
.picture-list {
    width: 100%;
    padding-top: 10px;
}
.picture-list .item {
    float: left;
    width: 277px;
    border: 1px solid #e5e5e5;
    border-bottom: 3px solid #f7b765;
    margin-right: 77px;
    margin-bottom: 52px;
}
.picture-list .item:nth-child(3n+3){
    margin-right: 0px;
}
.picture-list .item:hover {
    box-shadow: 4px 4px 4px #999999;
}
.picture-list .item a {
    display: block;
    width: 100%;
    height: 100%;
}
.picture-list .item a .img {
    position: relative;
    width: 100%;
    height: 160px;
    
    overflow: hidden;
}
.picture-list .item a .img img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    max-width: 100%;
    max-height: 100%;
}
.picture-list .item a .title {
    width: 100%;
    font-size: 16px;
    line-height: 48px;
    text-align: center;
}
.picture-list-Leader{
    width: 100%;
    padding-top: 10px;
}
.picture-list-Leader .itemLeader{
    width: 100%;
    margin-bottom: 20px;
}
.picture-list-Leader .itemLeader a{
    display: block;
    background-color: #fff;
}
.picture-list-Leader .itemLeader .pic{
    float: left;
    width: 130px;
    height: 170px;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}
.picture-list-Leader .itemLeader .txt{
    height: 170px;
    padding: 10px 30px 10px 165px;
}
.picture-list-Leader .itemLeader .tit{
    margin-bottom: 0px;
    font-size: 20px;
    line-height: 40px;
    font-weight: bold;
    color: #000;    
    background: url(../images/teacher_list_arrow.png) right center no-repeat;
}
.picture-list-Leader .itemLeader .tit:hover{
    color: #0f6a7b;
}
.picture-list-Leader .itemLeader .intro{
    position: relative;
}
.picture-list-Leader .itemLeader .intro .p1,.picture-list-Leader .itemLeader .intro .p2{
    padding-left: 20px;
    position: relative;
    font-size: 12px;
    color: #666666;
    line-height: 30px;
    overflow: hidden;
}
.picture-list-Leader .itemLeader li a:hover .p1,.picture-list-Leader .itemLeader li a:hover .p2{
    color:#0f6a7b ;
}
.picture-list-Leader .itemLeader .intro .p1:after{
    position: absolute;
    left: 0px;
    top: 10px;
    content: '';
    width: 3px;
    height: 12px;
    background: #76c4d3;
}
.picture-list-Leader .itemLeader .intro .p2:after{
    position: absolute;
    left: 0px;
    top: 10px;
    content: '';
    width: 3px;
    height: 12px;
    background: #0f6a7b;
}
/* 图片列表： end */


/* 图片列表页-响应式样式表 */
@media(max-width: 1500px){
    .container {
        width: 1170px;
    }
    .common-right {
        width: 900px;
    }
    .picture-list .item {
        margin-right: 34px;
    }
}


/* iPadPro（横屏1366) */
@media(max-width: 1300px){
    .container {
        width: 996px;
    }
    .first-title {
        display: block;
    }
    .common-left {
        margin-top: 2px;
        width: 100%;
        display: none;
    }
    .first-column {
        height: 60px;
    }
    .common-right {
        width: 100%;
    }
    .picture-list .item {
        margin-right: 82px;
    }
}

/* iPadPro(1024), iPad(横屏1024)，iPhone X(横屏812)，Pixel2 XL(横屏823)*/
@media(max-width: 1024px){
    .container {
        width: 750px;
    }
    .picture-list .item {
        width: 332px;
    }
    .picture-list .item {
        margin-right: 0px;
    }
    .picture-list .item:nth-child(2n) {
        float: left;
    }
    .picture-list .item:nth-child(2n+2) {
        float: right;
    }
    .picture-list .item a .img {
        height: 215px;
    }
}

/* iPad(768);Glaxy Fold(653);Pixel2(横屏731)*/
@media(max-width: 768px){
    .container {
        width: 510px;  /*因为当缩减到540时，padding为0px 15px；540-15*2 = 510，刚好拼接起来，不发生跳动*/
    }
    .first-column {
        height: 46px;
    }
    .navlist-side .second>a {
        line-height: 40px;
    }
    .picture-list .item {
        width: 250px;
        margin-bottom: 20px;
    }
    .picture-list .item a .img {
        height: 147px;
    }
}

/* Surface Duo(540) */
@media(max-width: 540px){
    .container {
        width: 100%;
        padding: 0px 15px;
    }
    .picture-list {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .picture-list .item:nth-child(2n) {
        display: flex;
        float: none;
    }
    .picture-list .item:nth-child(2n+2) {
        display: flex;
        float: none;
    }
    .picture-list .item {
        width: 360px;
    }
    .picture-list .item a .img {
        height: 227px;
    }
}

/* iPhone 6/7/8 Plus(414) */
@media(max-width: 450px){
    .picture-list .item {
        width: 300px;
    }
    .picture-list .item a .img {
        height: 200px;
    }
}

/* iphone6,7,8(375)；iphoneX(375) */
@media(max-width: 375px){
    .picture-list .item {
        width: 256px;
    }
    .picture-list .item a .img {
        height: 170px;
    }
}

/* iPhone5/SE(320) */
@media(max-width: 320px){}