/* 通用重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 移除默认样式 */
ul, ol {
    list-style: none;
}

/* 设置字体和文本样式 */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* 链接样式重置 */
a {
    text-decoration: none;
    color: inherit;
}

/* 表单元素重置 */
button, input, select, textarea {
    font: inherit;
    color: inherit;
    background-color: transparent;
    border: none;
    outline: none;
}

/* 图片和表格样式重置 */
img, table {
    border: 0;
    max-width: 100%;
}

/* 隐藏滚动条 */
::-webkit-scrollbar {
    display: none;
}

/* 辅助类 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}


.inner{width: 1240px; margin: 0 auto;}
#app{
    width: 100%;
    background-image: url("../images/topbg_01.png") , url("../images/bottombg_02.png");
    background-position: center top, center bottom;
    background-repeat: no-repeat, no-repeat;
    background-size: 100% auto;
    background-color: #ac0106;
    overflow: hidden;
}
.topTitle{padding-top: 40px;}
.topTitle img{width: 100%;height: auto;}
.topTitle .inner{width: 70%;}
.footer{padding: 20px 0;}
.footer .inner>div{text-align: center;margin: 15px  0;margin-bottom: 0;}
.footer .inner>div span{font-size: 15px;color: #fff;
    padding: 10px 20px;
}
.listBox{
    width: 70%;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
  }
.listBox .item{ 
   width: 22%;
   height: auto;
   margin-right: 4%;
   margin-bottom: 40px;
}
.listBox .item:nth-child(4n){
    margin-right: 0;
}
.listBox .item .img{
    width: 100%;
    height: auto;
    display: block;
}
.listBox .item .img img{ 
    width: 100%;
    height: 100%;
    transition: all 0.3s;
    display: block;
}
.listBox .item .school{
    text-align: center;
    color: #fff;
    font-size: 16px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    margin: 10px 0;
    font-weight: bold;
}
.listBox .item .detailBtn{
    width: 108px;
    height: 28px;
    margin: 0 auto;
    display: block;
    border: 1px solid #fff;
    text-align: center;
    line-height: 28px;
    color: #fff;
    font-size: 14px;
    transition: all 0.3s;
    border-radius: 14px;
}
.listBox .item .detailBtn:hover{
    color: #fff;
    background-color: #ff9900;
    border-color: #ff9900;
}
.listBox .item .detailBtn img{
    width: 14px;
    height: 14px;
    margin-left: 5px;
    vertical-align: -2px;
}


.footer .inner div span{
    margin:0 15px;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0;
    gap: 15px;
}

.pagination button {
    width: 240px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border: 1px solid #fff;
    cursor: pointer;
    color: #fff;
    border-radius: 25px;
    font-weight: 600;
}

.pagination button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.pagination button:hover:not(:disabled) {
    background-color: #ff9900;
}

.pagination .page-info {
    color: #fff;
    font-size: 15px;
}


.videoBox{
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
        display: none;
    z-index: 9;
}
.videoBox .video{ 
    position: absolute;
    width: 80%;
    top: 50%;
    left: 50%;

    transform: translate(-50%, -50%);

    box-sizing: border-box;
    background-color: rgb(255, 255, 255);
    transition: 0.5s;
       padding: 20px;
    border-radius: 15px;
    /* min-height: 400px; */
    .swiper {
        position: relative;
        width: 100%;
        height: 100%;
    }
}
.videoBox .video .close{ 
    position: absolute;
    right:0px;
    top: 0px;
    width:30px;
    cursor: pointer;
    z-index: 99;
    transition: 0.3s;
}
.videoBox .video video{
    width: 100%;
    height: auto;
}
.videoBox .video p{
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}
.swiper-button-down {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%) rotate(180deg);
    width: 40px;
    height: 40px;
    background-image: url('../images/arrow.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    cursor: pointer;
    z-index: 10;
}
.swiper-button-up{
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%) ;
    width: 40px;
    height: 40px;
    background-image: url('../images/arrow.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    cursor: pointer;
    z-index: 10;
}
.swiper-button-down:hover {
    opacity: 0.8;
}
.swiper-button-up:hover {
    opacity: 0.8;
}

.navBar { 
    position: fixed;
    right:2%;
    z-index: 99;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    color:#fff;
    text-align: center;

}
.navBar .swiper{
    width: 100%;
    height: 250px;
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    text-align: center;
    position: relative;
    margin-top: 40px;
}
.brDiv{
    margin: 5px 0;
    display: block;
    height: 5px;
    line-height: 5px;
}
.navBar .swiper .swiper-slide{
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   cursor: pointer;
}

.navBar .swiper .swiper-slide::after{ 
    display: block;
    content: "";
width: 20px;
height: 1px;
background-color: #fff;
position: absolute;
bottom: 0;
left: 0;
transform: translateX(50%);
}
.navBar .swiper .swiper-slide::before{ 
    display: block;
    content: "";
width: 20px;
height: 1px;
background-color: #fff;
position: absolute;
top: 0;
left: 0;
transform: translateX(50%);
}

.navBar .swiper .swiper-slide.active{
    color: #ff9900;
}
@media screen  and (max-width: 900px){
    .footer .inner{
        width: 100%;
    }
}