h2 {
    margin-bottom: 40px;
}

.card-v-box {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    align-content: start;
}

.container2 {
    display: flex;
    max-width: 1980px;
    /* 根据设计需要设置最大宽度 */
    margin: 0 auto;
    /* 居中对齐 */
    flex-direction: column;
    box-sizing: border-box;
}

/* 轮播 */
.carousel-box {
    /* max-width: 1980px;
    margin: 0 auto; */
    /* position: relative; */
}

.carousel {
    /* position: relative;
    margin: 0 auto; */
}

.carousel ul {
    margin: 0 auto;
    display: flex;
    transition: transform 0.5s;
}

.carousel-img li {
    flex: 0 0 100%;
    height: 800px;
    background-image: url(../images/banner.png);
    background-repeat: no-repeat;
}

/* .carousel img {
    width: 100%;
    height: 70vh;
} */

.carousel-btn {
    width: 100%;
    display: flex;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
    position: absolute;
    top: 40%;
}

.carousel-btn button {
    padding: 8px 16px;
    background-color: transparent;
    border: none;
    cursor: pointer;
}

/* 其它 */
.container2 {
    display: flex;
    max-width: 1920px;
    /* 根据设计需要设置最大宽度 */
    margin: 0 auto;
    /* 居中对齐 */
    flex-direction: column;
    box-sizing: border-box;
}

/* banner文字 */

.banner_title {
    width: 1200px;
    font-size: 40px;
    margin-top: 300px;
    text-align: center;
    font-weight: 200;
}

.banner_title>p:first-child {
    font-size: 45px;
    font-weight: 600;
}

/* 产品展示 */
.product_title {
    color: #4d4b4b;
}

.product_left {
    font-size: 25px;
    width: 350px;
    margin-top: 500px;
}

.product_left>p:first-child {
    font-size: 35px;
    font-weight: 600;
    margin-bottom: 50px;
}

/* .product_right>img {} */

/* 公司介绍 */
.company_profile {
    height: 800px;
    background-image: url(../images/公司介绍.png);
}

.company_left {
    position: relative;
}

.company_left>p:first-child {
    position: absolute;
    left: 200px;
    top: 300px;
    font-size: 55px;
    color: #ffffff;
    font-weight: 700;
}

.company_left>p {
    position: absolute;
    left: 200px;
    top: 400px;
    font-size: 55px;
    color: #ffffff;
    font-weight: 700;
}

.company_right {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 150px);
    margin-left: 150px;
}

.company_info {
    margin-top: 350px;
    font-size: 25px;
    color: #ffffff;
}

.company_info>p:first-child {
    font-size: 35px;
    color: #ffffff;
    font-weight: 600;
}

/* 服务 */
.service_box {
    height: 800px;
    background-image: url(../images/服务.png);
}

.service_card_box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.service_card {
    background-color: #FFFFFF33;
    border-radius: 45px;
    width: 430px;
    height: 600px;
    margin-top: 100px;
    text-align: center;
    padding: 64px 40px;
    color: #ffffff;
}

.service_card>p:first-child {
    font-size: 50px;
}

.service_card>p:nth-child(2) {
    font-size: 100px;
    color: rgb(170, 210, 249);
    font-weight: 600;
    margin-top: 30px;
}

.service_card>p:nth-child(3) {
    font-size: 30px;
    margin-top: 50px;
    margin-bottom: 50px;
}

.service_card>span {
    font-size: 20px;
    border: rgb(63, 169, 245) solid 2px;
    padding: 8px 64px;
    font-weight: 600;
    border-radius: 45px;
}

.service_card>span>a {
    color: #ffffff;
}

/* 合作 */
.cooperate_box {
    height: 800px;
    background-image: url(../images/合作.png);
}

.cooperate_info {
    width: 700px;
    margin-top: 160px;
    text-align: center;
}

.cooperate_info>p:first-child {
    color: #ffffff;
    font-size: 40px;
}

.cooperate_info>p:nth-child(2) {
    font-size: 40px;
}

.cooperate_info>p:nth-child(3) {
    font-size: 100px;
    background: linear-gradient(to right, #2070f0, #c2e9fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
    display: inline-block;
    margin: 20px 0;
}

.cooperate_info>p:nth-child(4) {
    color: #ffffff;
    font-size: 30px;
    margin-bottom: 50px;
}

.cooperate_info>span {
    color: rgb(62, 168, 244);
    font-size: 30px;
    margin-bottom: 20px;
    font-weight: 600;
    border: rgb(63, 169, 245) solid 2px;
    padding: 8px 64px;
    border-radius: 45px;
}

.cooperate_info>span>a {
    color: rgb(62, 168, 244);
}

/* 新闻 */
.news_box {
    height: 800px;
    background-color: rgb(232, 240, 251);
    text-align: center;
}

.news_top {
    display: flex;
    width: 1200px;
    margin: 0 auto;
}

.news_top_left {
    width: 150px;
    height: 150px;
    line-height: 150px;
    background-color: #ffffff;
    font-size: 30px;
    margin-top: 80px;
}

.news_top_right {
    width: 1000px;
    height: 150px;
    background-color: #ffffff;
    font-size: 23px;
    margin-top: 80px;
    margin-left: 10px;
}


.news_top_right>p:first-child {
    margin-top: 24px;
}

.news_top_right>p:first-child>a {
    color: rgb(51, 147, 239);
    font-weight: 600;
}

.news_top_right>p:nth-child(2) {
    margin-top: 24px;
    font-size: 18px;
    padding: 0 16px;
}

.news_bottom {
    display: flex;
    width: 1200px;
    margin: 0 auto;
}

.news_bottom_left {
    width: 400px;
    margin-top: 24px
}

.news_bottom_left>li {
    color: #262626;
    height: 68px;
    background-color: #ffffff;
    padding: 10px;
    box-shadow: rgb(147, 193, 236) 2px 1px 10px;
}

.news_bottom_left>li>a {
    color: #262626;
}

.news_bottom_left>li:hover {
    background-color: rgb(63, 169, 245);
}

.news_bottom_right {
    width: 700px;
    margin-top: 24px;
    margin-left: 50px;
}

.news_bottom_right>img {
    width: 700px;
    height: 467px;
}


/* 新闻板块 */
.news-box {
    display: flex;
    flex-direction: row;
}

.news_top_left_mobile {
    display: none;
}

.news-box span {
    flex: 1;
    font-size: 13px;
    margin-top: 8px;
    color: #787878;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.news-box span.time {
    display: flex;
    flex: 1;
    font-size: 12px;
    color: #A7A7A7;
    margin-top: 8px;
}

.news-left {
    width: 500px;
    margin-right: 32px;
}

.news-box .news-left .image-container {
    overflow: hidden;
    margin-bottom: 16px;

}

.news-box .news-left .image-container .large-img {
    width: 100%;
    transition: transform 0.5s ease;
    /* 定义变换动画 */
    transform: scale(1);
}

.news-box .news-left .image-container:hover img {
    transform: scale(1.05);
}

.news-box .news-left a {
    font-size: 24px;
    color: #262626;
}

.news-right {
    flex: 1;
}

.news-card {
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
}

/* 1.盒子的大小，背景色，居中和超出隐藏 */
.news-card div {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: 24px;
}

.news-card div img {
    width: 120px;
}

.news-card div a {
    display: flex;
    flex: 1;
    font-size: 18px;
    font-family: "Microsoft YaHei", "微软雅黑";
    color: #262626;
}

.news-box a:hover {
    color: #4d7fd0;
}

.banner {
    flex: 1;
    display: flex;
    position: relative;
    background: url('../images/banner2.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 56px 0;
}

.banner::after {
    content: '';
    /* 伪元素内容为空 */
    position: absolute;
    /* 绝对定位 */
    top: 0;
    /* 顶部对齐 */
    left: 0;
    /* 左侧对齐 */
    width: 100%;
    /* 覆盖整个容器宽度 */
    height: 100%;
    /* 覆盖整个容器高度 */
    background-color: rgba(0, 0, 0, 0.5);
    /* 半透明黑色叠加层，调整最后一个值来控制透明度 */
    z-index: 1;
    /* 确保伪元素叠加在背景图之上 */
}

.banner-title {
    color: #fff;
    font-size: 42px;
    text-align: center;
    position: relative;
    z-index: 999;
}

.banner-title::after {
    content: '';
    border-bottom: 1px #fff solid;
    width: 20%;
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translate(-50%, 0);
    z-index: 999;
}

.banner-sub {
    color: #fff;
    font-size: 1.2em;
    line-height: 1.8em;
    text-align: left;
    margin: 4em 0 3em 0;
    z-index: 999;
}

.banner-info {
    color: #fff;
    flex: 1;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    font-size: 2em;
    font-weight: bold;
    z-index: 999;
}

.banner-info .column {
    text-align: center;
    z-index: 999;
}

.banner-info .column p {
    color: #fff;
    font-size: 0.7em;
    font-weight: 500;
    margin-top: 0.3em;
}

.banner-info .column .number {
    color: #fff;
    font-size: 2.5em;
    font-weight: bold;
    overflow: hidden;
}

.card-h img {
    width: 400px;
}

.service-list {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}

.service-list .item {
    text-align: center;
}

.service-list .title {
    font-size: 24px;
    line-height: 36px;
    color: rgba(0, 0, 0, .85);
    margin: 16px 0;
    font-weight: 500;
}

.service-list a {
    font-size: 16px;
    color: rgba(0, 0, 0, .85);
}

.service-list a:hover {
    text-decoration: underline;
}

.service-list .text::after {
    content: " >";
}

/* 解决方案 */
.solution-box {
    width: 1230px;
    margin: 40px auto 0;

}

.solution-card>li {
    position: relative;
    margin: 10px 0 20px 70px;
}

.solution-card>li img {
    width: 300px;
}

.solution-card>li span {
    position: absolute;
    width: 700px;
    line-height: 30px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    top: 40px;
    right: 80px;
}

.services_details {
    border-radius: 3px;
    color: #787878;
    width: 100px;
    height: 30px;
    position: absolute;
    bottom: 10px;
    background-color: #fff;
    border: 1px solid #dddddd;
}

/* 专业知识 */
.expertise-mask {
    width: 100%;
    background-color: #f7f7f7;
    padding: 40px 0;
}

.expertise-box {
    width: 1230px;
    margin: 0 auto;
    padding-bottom: 30px;
}

.expertise-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;

}

.expertise-card>li {
    padding: 20px 0;
    text-align: center;
    width: 360px;
    border: .5px solid gainsboro;
    margin-bottom: 40px;
}

.expertise-card>li>img {
    width: 300px;

}

.expertise-card>li>p {
    margin: 10px auto 0;
    width: 300px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.customer-list {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 24px;
    align-content: start;

}

.customer-list li {}

.customer-list li img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 0 12px #d6d6d6;
}

/* sitemap */

.sitemap-box {
    display: flex;
    justify-content: space-evenly;
}

.sitemap-box li {
    line-height: 40px;
}

.sitemap-cover>p {
    text-align: center;
}

.sitemap-box ul li:first-child {
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.8);
}

.sitemap-box li a {
    color: rgba(255, 255, 255, 0.4);
}

.sitemap-box li a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.sitemap-box~.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 40px;
}

/* 响应式布局 */
@media (max-width: 768px) {
    h2 {
        font-size: 7vw;
    }

    .container {
        padding: 0 24px;
    }

    .container2 {
        padding: 0 24px;
    }

    .news-left {
        display: none;
    }

    .banner {}

    .banner::after {
        content: '';
        /* 伪元素内容为空 */
        position: absolute;
        /* 绝对定位 */
        top: 0;
        /* 顶部对齐 */
        left: 0;
        /* 左侧对齐 */
        width: 100%;
        /* 覆盖整个容器宽度 */
        height: 100%;
        /* 覆盖整个容器高度 */
        background-color: rgba(0, 0, 0, 0.5);
        /* 半透明黑色叠加层，调整最后一个值来控制透明度 */
        z-index: 1;
        /* 确保伪元素叠加在背景图之上 */
    }

    /* .banner-title {
        font-size: 8vw;
        white-space: nowrap;
    } */
    .banner_title {
        width: 100%;
        font-size: 20px;
        margin-top: 100px;
        margin-bottom: 100px;
        text-align: center;
        font-weight: 200;
    }

    .banner_title>p:first-child {
        font-size: 25px;
        font-weight: 600;
    }

    .carousel-box {
        font-size: 8vw;
        white-space: nowrap;
    }

    .carousel-img {
        width: 100%;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
        /*margin-bottom: 24px;*/
        border-radius: 5px;
    }


    .banner-info {
        flex-direction: row;
        justify-content: space-around;
    }


    .banner-info .column .number {
        font-size: 10vw;
    }

    .banner-sub {
        text-indent: 2em;
    }

    .card-v-box {
        display: flex;
        flex-direction: column;
    }

    .card-h {
        width: 100%;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
        border: 1px solid #e4e4e4;
        /*margin-bottom: 24px;*/
        background-color: #fff;
        border-radius: 5px;
        overflow: hidden;
    }

    .card-h .image-container {
        width: 100%;
        height: 0;
        padding-top: 62.5%;
        overflow: hidden;
    }

    .card-h img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }


    .card-h .card-info {
        display: flex;
        flex: 1;
        flex-direction: column;
        margin: 26px 10px 26px 10px;
    }

    .card-h .card-info .title {
        color: #4e4e4e;
        font-size: 18px;
        margin-bottom: 16px;
    }

    .card-h .card-info .sub {
        color: #787777;
        font-size: 14px;
        margin-bottom: 16px;
        word-wrap: break-word;
    }

    .card-h .card-info .other {
        margin-top: auto;
        color: #787777;
        font-size: 14px;
    }

    .product_left {
        font-size: 15px;
        width: 350px;
        margin-top: 10px;
    }

    .product_right {
        width: 100%;
    }

    .product_right>img {
        width: 100%;
    }

    .company_profile {
        height: 400px;
    }

    .company_left {
        display: none;
    }

    .company_right {
        width: 100%;
        display: grid;
        grid-template-columns: 100%;
        margin-left: 50px;
    }

    .company_info {
        margin-top: 10px;
    }

    .service_box {
        height: 400px;
        background-image: url(../images/服务.png);
    }

    .service_card_box>div:nth-child(2) {
        display: none;
    }

    .service_card_box>div:nth-child(3) {
        display: none;
    }

    .service_card {
        width: 300px;
        height: 350px;
        margin-top: 20px;
        text-align: center;
        padding: 16px 10px;
        color: #ffffff;
    }

    .service_card>p:first-child {
        font-size: 30px;
    }

    .service_card>p:nth-child(2) {
        font-size: 40px;
        color: rgb(170, 210, 249);
        font-weight: 600;
        margin-top: 30px;
    }

    .service_card>p:nth-child(3) {
        font-size: 20px;
        margin-top: 50px;
        margin-bottom: 50px;
    }

    .service_card>span {
        color: #ffffff;
        font-size: 20px;
        border: rgb(63, 169, 245) solid 2px;
        padding: 8px 16px;
        font-weight: 600;
        border-radius: 45px;
    }

    .cooperate_box {
        height: 400px;
    }

    .cooperate_info {
        width: 100%;
        margin-top: 50px;
        text-align: center;
    }

    .cooperate_info>p:first-child {
        color: #3b3939;
        font-size: 25px;
    }

    .cooperate_info>p:nth-child(2) {
        font-size: 25px;
    }

    .cooperate_info>p:nth-child(3) {
        font-size: 35px;
        margin: 10px 0;
    }

    .cooperate_info>p:nth-child(4) {
        color: #474444;
        font-size: 30px;
        margin-bottom: 20px;
    }

    .cooperate_info>span {
        font-size: 35px;
        margin-bottom: 10px;
        padding: 8px 16px;
    }

    .news_bottom_right {
        display: none;
    }

    .news_top {
        width: 100%;
    }

    .news_top_left {
        display: none;
    }

    .news_top_right {
        width: 80%;
        height: 200px;
        margin: 0 auto;
    }

    .news_bottom {
        width: 80%;

    }

    .news_box {
        height: 100%;
    }

    .news_top_left_mobile {
        display: flex;
        font-size: 30px;
        width: 100%;
        margin-left: 30%;
    }

}