/* ny_tit */
.ny-tit h1 {
    font-size: 50px;
    color: #ae0002;
    line-height: 1;
}
.ny-tit h2{
    color: #ae0002;  
    line-height: 1;
}
/* video */
.develop_video {
    padding-top: 165px;
    padding-bottom: 198px;
}

.develop_video .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    /* 添加换行属性 */
}

.develop_video .container .img {
    width: calc(100% - 1150px);
    margin-top: 6px;
    /* 添加间距 */
}

.develop_video .container .img img {
    width: 100%;
    max-width: 383px;
}

.develop_video .container .video {
    width: 1150px;
    padding-right: 30px;
}

.video-overlay {
    position: relative;
    width: 100%;
    height: 100%;
}

.video-controls {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
}

.play-button {
    background-color: #ae0002;
    border: none;
    color: white;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 24px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 0;
    width: 78px;
    height: 78px;
    transition: all .3s;
}

.play-button:hover {
    opacity: 0.8;
}

.video-text {
    margin-top: 10px;
}

/* 模态框样式 */
.modal {
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    /* 初始透明度为0 */
    transition: opacity 0.5s ease;
    /* 添加过渡效果 */
    visibility: hidden;
    /* 初始不可见 */
}

.modal.show {
    opacity: 1;
    /* 显示时透明度为1 */
    visibility: visible;
    /* 显示时可见 */
}

.modal .modal-content {
    margin: 15% auto;
    padding: 20px;
    width: 80%;
    max-width: 800px;
    background-color: #fff;
    position: relative;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-50px);
    /* 初始位置 */
    transition: transform 0.5s ease;
    /* 添加过渡效果 */
}

.modal.show .modal-content {
    transform: translateY(0);
    /* 显示时位置 */
}

/* 关闭按钮旋转动画 */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(180deg);
    }
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    /* 添加鼠标指针效果 */
    transition: color 0.3s;
    /* 添加过渡效果 */
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    animation: rotate 0.5s linear forwards;
    /* 修改为 forwards 以确保动画结束后保持最终状态 */
}

/* topics */
.develop_topics {
    background-color: #f3f3f3;
    padding: 70px 0px 73px 0px;
}

.develop_topics .topics_lib {
    margin-top: 85px;
    position: relative;
}

/* Swiper样式 */
.topics_lib .swiper-container {
    width: calc(100% + 12px);
    height: 100%;
    position: relative;
    /* 添加相对定位 */
    display: inline-block;
    padding: 6px;
    margin-left: -6px;
}

.topics_lib .swiper-slide {
    background-color: white;
    border-radius: 40px;
    box-shadow: 2px 2px 6px rgb(0, 0, 0, .2);
    padding: 40px 0px 44px;
    text-align: center;
    overflow: hidden;
    position: relative;
    /* 添加相对定位 */
    cursor: pointer;
}

.topics_lib .swiper-slide img {
    max-width: 100%;
    max-height: 276px;
    transition: opacity 0.3s;
    /* 添加过渡效果 */
}



.topics_lib .swiper-slide .slide-info {
    position: absolute;
    /* 绝对定位 */
    top: 50%;
    /* 初始状态位于swiper-slide的中间 */
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    /* 初始状态缩小到中间一点 */
    width: 0%;
    /* 设置初始宽度 */
    height: 0%;
    /* 设置初始高度 */
    background-color: #2b9a47;
    /* 半透明背景 */
    color: white;
    border-radius: 40px;
    padding: 50px 35px;
    box-sizing: border-box;
    opacity: 0;
    /* 初始状态透明 */
    transition: transform 0.3s, opacity 0.3s;
    /* 添加过渡效果 */
    display: flex;
    flex-direction: column;
}

.topics_lib .swiper-slide.topics2 .slide-info {
    background-color: #ef4129;
}

.topics_lib .swiper-slide.topics3 .slide-info {
    background-color: #8f1737;
}

.topics_lib .swiper-slide.topics4 .slide-info {
    background-color: #f36e23;
}

.topics_lib .swiper-slide.topics5 .slide-info {
    background-color: #cd8b29;
}

.topics_lib .swiper-slide.topics6 .slide-info {
    background-color: #00548a;
}

.topics_lib .swiper-slide .slide-info h2 {
    font-size: 24px;
    line-height: 1;
}

.topics_lib .swiper-slide .slide-info p {
    font-size: 14px;
    margin-top: 20px;
    line-height: 1.5em;
    text-align: left;
}

.topics_lib .swiper-slide:hover .slide-info {
    transform: translate(-50%, -50%) scale(1);
    /* 鼠标经过时放大到整个项目 */
    opacity: .9;
    /* 鼠标经过时显示 */
    width: 100%;
    /* 设置宽度为100% */
    height: 100%;
    /* 设置高度为100% */
}

/* 新增上下页按钮样式 */
.topics_lib .swiper-button-prev,
.topics_lib .swiper-button-next {
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
    z-index: 10;
    /* 确保按钮在最上层 */
    position: absolute;
    /* 添加绝对定位 */
    top: 50%;
    /* 垂直居中 */
    transform: translateY(-50%);
    /* 垂直居中 */
    margin-top: 0px;
    opacity: 1 !important;
}

.topics_lib .swiper-button-prev {
    left: -20px !important;
    /* 调整左侧按钮的位置 */
    background: url("/en/template/default/images/left1.png") no-repeat center center #000;
}

.topics_lib .swiper-button-next {
    right: -20px !important;
    /* 调整右侧按钮的位置 */
    background: url("/en/template/default/images/right1.png") no-repeat center center #000;
}

/* news */
.develop_news {
    padding: 180px 0px 160px;
}

.develop_news .container {
    display: flex;
    justify-content: space-between;
}

.develop_news .container .ny-tit {
    width: calc(100% - 1153px);
}

.develop_news .container .news_list {
    width: 1153px;
}

.develop_news .container .news_list .news_item {
    background-color: #f2f2f2;
    border-radius: 40px;
    padding: 54px 72px 13px 44px;
    margin-bottom: 40px;
    transition: opacity 0.5s ease;
    /* 添加过渡效果 */
    opacity: 0;
    /* 初始状态为隐藏 */
}

.develop_news .container .news_list .news_item.show {
    opacity: 1;
    /* 显示状态 */
}


/* 响应式设计 */
@media (max-width: 1680px) {
    .develop_video .container .video {
        width: 65%;
    }
    .develop_video .container .img {
        width: 35%;
    }
    .topics_lib .swiper-slide .slide-info{
        padding:40px 30px;
    }
    .topics_lib .swiper-slide .slide-info p{
        margin-top:10px;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 6;
        -webkit-box-orient: vertical;
        overflow: hidden;

    }
    .develop_news .container .news_list {
        width: 65%;
    }

    .develop_news .container .ny-tit {
        width: 35%;
    }

    .topics_lib .swiper-slide {
        padding: 40px
    }

}
@media (max-width: 1280px){
    .topics_lib .swiper-slide .slide-info{
        padding:30px 25px;
    }
    .topics_lib .swiper-slide .slide-info h2{
        font-size:20px;
    }
    .topics_lib .swiper-slide .slide-info p{
        font-size:13px;
    }
}
@media (max-width: 1200px) {
    .ny-tit h1 {
        font-size: 40px;
    }

    .develop_video {
        padding: 80px 0;
    }

    .develop_video .container .img {
        width: 45%;
    }

    .develop_video .container .video {
        width: 55%;
    }

    .develop_news .container {
        flex-direction: column;
    }


    .topics_lib .swiper-slide .slide-info {
        padding: 30px 20px;
    }

    .topics_lib .swiper-slide .slide-info h2 {
        font-size: 20px;
    }

    .develop_news .container .ny-tit {
        width: 100%;
        margin-bottom: 20px;
    }

    .develop_news .container .news_list {
        width: 100%;
    }
    .develop_video .container .img img{
        max-width:60%;
    }
}

@media (max-width: 992px) {

    .ny-tit h1 {
        font-size: 32px;
    }

    .develop_video .container .img {
        width: 100%;
        text-align: center;
    }

    .develop_video .container .video {
        width: 100%;
        margin-top: 20px;
        padding: 0px;
    }

    .develop_video .container .video img {
        width: 100%;
    }

    .develop_news {
        padding: 80px 0px;
    }

    .develop_news .container .ny-tit {
        width: 100%;
        margin-bottom: 40px;
    }

    .develop_news .container .news_list {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .ny_banner .banner_txt p {
        display: none;
    }

    .ny-tit h1 {
        font-size: 24px;
    }

    .develop_video,
    .develop_topics {
        padding: 50px 0px;
    }

    .play-button {
        width: 60px;
        height: 60px;
        font-size: 20px;
    }

    .develop_topics .topics_lib {
        margin-top: 50px;
    }
    .topics_lib .swiper-slide{
        padding:30px;
    }
    .develop_news {
        padding: 50px 0px;
    }

    .develop_news .container .ny-tit {
        width: 100%;
        margin-bottom: 40px;
    }

    .develop_news .container .news_list {
        width: 100%;
    }

    .develop_news .container .news_list .news_item {
        padding: 30px 20px 15px 20px;
        border-radius: 20px;
        margin-bottom: 20px;
    }
}
@media(max-width:640px){
    .play-button{
        width:40px;
        height:40px;
        line-height:1;
    }
    .topics_lib .swiper-slide,.topics_lib .swiper-slide .slide-info{
        border-radius:20px;
    }
    .topics_lib .swiper-slide .slide-info{
        padding:30px;
    }
    .topics_lib .swiper-slide .slide-info h2{
        font-size:24px;
    }
    .topics_lib .swiper-slide .slide-info p{
        font-size:14px;
    }
    .topics_lib .swiper-button-prev {
        left: -16px !important;
        /* 调整左侧按钮的位置 */
        background: url("/en/template/default/images/left1.png") no-repeat center center #000;
        background-size:18px;
    }
    .topics_lib .swiper-button-next {
        right: -16px !important;
        /* 调整右侧按钮的位置 */
        background: url("/en/template/default/images/right1.png") no-repeat center center #000;
        background-size:18px;
    }
}
@media(max-width:460px){
    .topics_lib .swiper-slide{
        padding:20px 15px 15px;
    }
    .topics_lib .swiper-slide .slide-info{
        padding:15px 10px;
    }
    .topics_lib .swiper-slide .slide-info h2{
        font-size:14px;
    }
    .topics_lib .swiper-slide .slide-info p{
        font-size:10px;
        margin-top:7px;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 7;
-webkit-box-orient: vertical;
overflow: hidden;
    }
}
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