h1 {
    font-size: clamp(32px, 3vw, 56px);
}

h2 {
    font-size: clamp(22px, 2vw, 36px);
}

p,
li {
    font-size: clamp(15px, 1.1vw, 18px);
    line-height: 1.7;
}

.container {
    max-width: 1440px;
    padding: 0 32px;
    margin: 0 auto;
}

.hero {
    margin-top: 1rem;
}

.hero,
.hero-box {
    height: 100vh;
}

img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

body {
    background: #eee;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: clamp(16px, 1.1vw, 18px);
    color: #000;
    margin: 0;
    padding: 0;
}

/* 2 */
.concretePumpBox {
    width: 100%;
    background-image: url('../img/home1.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    /* position: relative; */
}

.concretePumpBox_l {
    width: 4.75rem;
    height: 4.38rem;
    text-align: left;
    padding-right: .5rem;
}

.concretePumpBox_l>div:first-child {
    font-family: pb;
}

.concretePumpBox_lmsg {
    font-size: .3rem;
    word-wrap: break-word;
    line-height: .45rem;
    color: #ffffff;
}

#concretePumpBox_lmsgeTitle {
    line-height: .84rem;
    font-size: .48rem;
    color: #ffffff
}

.readme {
    color: #ffffff;
    margin-right: .20rem;
    font-size: .26rem;
}

.concretePumpBox_lImg>img {
    width: 5.82rem;
    height: 5.82rem;
    border-radius: 50%;
}

.concretePumpBox_lbtn {
    width: 3.21rem;
    height: .7rem;
    background-image: linear-gradient(50deg, #f4541a, #fe8d61);
    border-radius: .4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: .3rem;
    cursor: pointer;
    margin-bottom: 0.2rem;
}

.concretePumpBox_lbtn>div {
    font-size: .3rem !important;
}

.concretePumpBox_position {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    height: 100%;
}

.concretePumpBox_lImg {
    width: 6.17rem;
    height: 6.17rem;
    border-radius: 50%;
    border: .01rem solid #8caad3;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.concretePumpBox_RNav_Li {
    display: flex;
    flex-direction: row-reverse;
    justify-content: center;
    align-items: center;
    margin-top: .23rem;
    cursor: pointer;
    margin: 0 auto;
}

.concretePumpBox_RNav_LiIcon {
    width: .74rem;
    height: .74rem;
    border-radius: 50%;
    border: .02rem solid #ffffff;
    /* margin: 0 .23rem 0 .14rem; */
    margin: 0 auto;
}

.concretePumpBox_RNav_LiIcon>img {
    width: .74rem;
    height: .74rem;
    border-radius: 50%;
}

.concretePumpBox_RNav_Lititle {
    width: 2.4rem;
    word-wrap: break-word;
    font-size: .26rem;
    color: #ffffff;
    font-family: bar;
    text-align: left;
    text-align: center;
    margin-top: 0.2rem;
}

.concretePumpBox_RNav {
    padding-bottom: .6rem;
    padding-top: .46rem;
    /* margin-left: .26rem; */
    flex-direction: column;
    display: flex;
    align-items: flex-start;
    gap: .2rem;
}

.concretePumpBox_RNav_Li.active .concretePumpBox_RNav_LiIcon {
    border-color: #f4541a;
}

.concretePumpBox_RNav_Li.active .concretePumpBox_RNav_Lititle {
    color: #f4541a;
}

/* 3 */
.ProjectCasesBox {
    width: 100%;
    height: 100%;
    background-image: url('../img/home55.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
}

.ProjectCasesBox {
    display: flex;
    justify-content: end;
    align-items: center;
}

#demo {
    width: 12.47rem;
    float: right;
    overflow: hidden;
    height: 5.44rem;
    border: none;
}

#indemo {
    float: left;
    width: 800%;
}

#demo1,
#demo2 {
    height: 5.44rem;
    float: left;
    display: inline-table;
}

.ProjectCasesBox_c_ul li {
    width: 4.36rem;
    height: 5.44rem;
    float: left;
    margin-right: .27rem;
    position: relative;
    /* padding-left:8px;  */
}

.demo1M {
    width: 100%;
    height: 1.48rem;
    position: absolute;
    bottom: 0;
    background-image: url('../img/icon4.png');
    background-repeat: no-repeat;
    background-size: cover;
    /* background: linear-gradient(#ccd1d7, #1254a7); */
    display: flex;
    /* opacity: 0.9; */
    align-items: end;
}

.demo1M>div {
    font-size: .18rem;
    text-align: left;
    color: #ffffff;
    width: 3.02rem;
    word-wrap: break-word;
    padding: 0 0 .32rem .26rem;
}

.demo1M>img {
    margin: 0 0 .32rem .26rem;
}

.ProjectCasesBox_c_ul img {
    width: 4.36rem;
    height: 100%;
    display: block;
    background: #ccc;
}

#demo1 {
    float: left;
}

#demo2 {
    float: left;
}

ul,
li,
div {
    margin: 0;
    padding: 0;
    font-size: .12rem;
    list-style-type: none;
}

.demoBut {
    position: absolute;
    bottom: -.5rem;
    left: 0;
    display: flex;
}

.demoBut>div {
    width: .45rem;
    height: .45rem;
    text-align: center;
    line-height: .45rem;
    color: #ffffff;
    font-size: .3rem;
    border: .01rem solid #ffffff;
}

.ProjectCasesBox_c_box {
    width: 12.47rem;
    height: 5.44rem;
    margin-left: .4rem;
    position: relative;
}


/* 4 */
.ConstructionBox {
    width: 100%;
    height: 100%;
    background-image: url('../img/home66.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
}

.ConstructionBox_title {
    width: 100%;
    display: flex;
    justify-content: center;
}

.ConstructionBox_title>div {
    width: 9.97rem;
    color: #ffffff;
    font-size: .72rem;
    font-family: 'bar';
    word-wrap: break-word;
}

.ConstructionBox_content {
    display: flex;
    width: 100%;
    display: flex;
    justify-content: center;
}

.ConstructionBox_contentLi {
    width: 13.80rem;
    display: flex;
    justify-content: space-between;
    margin-top: .58rem;
}

.ConstructionBox_contentNum {
    cursor: pointer;
}

.ConstructionBox_contentT {
    color: #ffffff;
    font-size: .82rem;
    display: flex;
}

.ConstructionBox_contentT>div {
    color: #ffffff;
    font-size: .82rem;
    font-family: 'bar';
}

.ConstructionBox_contentC {
    max-width: 2.82rem;
    /* height: .8rem; */
    word-wrap: break-word;
    color: #ffffff;
    font-size: .18rem;
    text-align: left;
    background: rgba(27, 60, 117, 0.5);
    /* line-height: .2rem; */
    padding: .19rem;
}

/* 5 */
.OurServiceBox {
    width: 100%;
    background-image: url('../img/home7.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
}

.OurServiceBox_title {
    width: 100%;
    display: flex;
    justify-content: center;
}

.OurServiceBox_titleC {
    width: 9.97rem;
    color: #ffffff;
    font-size: .72rem;
    font-family: 'bar';
    word-wrap: break-word;
    text-align: center
}

.OurServiceBox_content {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 1.52rem;
}

.OurServiceBox_contentLi {
    width: 2.79rem;
    height: 3.06rem;
    background: rgba(40, 86, 144, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    border-right: 0.01rem solid #ffffff;
    transition: 0.4s;
}

.OurServiceBox_contentLi:last-child {
    border-right: none;
}

.OurServiceBox_contentLi_Icon {
    width: 1.08rem;
    height: 1.08rem;
    background: #ffffff;
    border-radius: .5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.OurServiceBox_contentLi_title {
    width: 2.07rem;
    color: #ffffff;
    font-size: .20rem;
    word-wrap: break-word;
    text-align: center;
}

.OurServiceBox_contentui {
    display: flex;
}

.navstops {
    transition: 0.4s;
    margin-top: -0.1rem;
    cursor: pointer;
    background: rgba(16, 48, 86, 0.5);
}



/* 主流桌面（外贸主战场） */
@media (max-width: 1440px) {

    .hero,
    .hero-box {
        height: 50vh;
    }
}

/* 平板 / 小屏笔电 */
@media (max-width: 1024px) {

    .hero,
    .hero-box {
        height: 40vh;

    }
}

@media (max-width: 768px) {

    .hero,
    .hero-box {
        width: 100%;
        height: auto;
    }

    #demo2 {
        display: none;
    }

    .concretePumpBox_position {
        flex-direction: column;
    }

    .concretePumpBox_RNav {
        flex-direction: row;
        padding-bottom: .6rem;
        padding-top: .46rem;
        max-width: 100%;
        box-sizing: border-box; /* 重要：让 padding 包含在宽度内 */
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        /* iOS 平滑滚动 */
        scroll-behavior: smooth;
        /* 平滑滚动 */
        scrollbar-width: none;
        /* Firefox 隐藏滚动条 */
        -ms-overflow-style: none;
        /* IE/Edge 隐藏滚动条 */
        /* 防止垂直滚动 */
        white-space: nowrap;
        /* 添加内边距，让最后一个元素可以完全显示 */
        padding-right: 1rem;
    }

    /* 隐藏滚动条（Chrome/Safari） */
    .concretePumpBox_RNav::-webkit-scrollbar {
        display: none;
    }

    .concretePumpBox_RNav_Li {
        flex-direction: column;
        align-items: center;
        cursor: pointer;
        margin: 0 auto;
         /* 防止换行 */
        flex-shrink: 0;
        /* 设置最小宽度，确保每个项目有足够空间 */
        min-width: 1.5rem;
        max-width: 2.5rem;
        white-space: normal;
    }

    .concretePumpBox_RNav_LiIcon {
        width: .74rem;
        height: .74rem;
        border-radius: 50%;
        border: .02rem solid #ffffff;
        margin: 0 auto;
    }

    .concretePumpBox_lImg {
        width: 7rem;
        height: 7rem;
        border-radius: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        border: none;
    }

    .concretePumpBox_lImg>img {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .concretePumpBox_l {
        width: 7rem;
        height: 4.38rem;
        text-align: left;
        /* padding-top: .7rem; */
        /* padding-right: .5rem; */
        padding: .5rem .2rem .2rem .2rem;
    }

    /* 3 */

    .ProjectCasesBox {
        flex-direction: column;
    }

    .ProjectCasesBox_c_ul {
        width: 7.5rem;
        height: 11.44rem;
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
        align-content: flex-start;
        gap: .12rem;
    }

    #indemo,
    #indemo,
    #demo,
    .ProjectCasesBox_c_box {
        width: 100%;
        float: none;
        height: auto;
    }

    .ProjectCasesBox_c_ul>li {
        position: relative;
        height: 5.44rem;
        width: 48%;
        margin: 0;
    }

    .demo1M {
        width: 100%;
        height: 1.48rem;
        position: absolute;
        bottom: 0;
        background-image: url('../img/icon4.png');
        background-repeat: no-repeat;
        background-size: cover;
        /* background: linear-gradient(#ccd1d7, #1254a7); */
        display: flex;
        /* opacity: 0.9; */
        align-items: end;
    }

    .ProjectCasesBox_c_ul li img {
        width: 3.5rem;
        height: 5.44rem;
        display: block;
        background: #ccc;
    }

    .ProjectCasesBox_c_box {
        margin-top: -0.2rem;
    }


    /* 4 */
    .ConstructionBox {
        border-top: .02rem solid #ffffff;
    }

    .ConstructionBox_title {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .ConstructionBox_title>div {
        width: 9.97rem;
        color: #ffffff;
        font-size: .48rem;
        word-wrap: break-word;
        padding-left: .2rem;
        margin-top: .3rem;
        font-family: pb;
        line-height: .6rem;
    }

    .ConstructionBox_content {
        width: 100%;
        display: flex;
        justify-content: center;
        margin-bottom: .3rem;
    }

    .ConstructionBox_contentLi {
        width: 13.80rem;
        display: flex;
        justify-content: space-around;
        margin-top: .58rem;
        flex-wrap: wrap;
    }

    .ConstructionBox_contentNum {
        cursor: pointer;
    }

    .ConstructionBox_contentT {
        color: #ffffff;
        font-size: .82rem;
        display: flex;
    }

    .ConstructionBox_contentT>div {
        color: #ffffff;
        font-size: .82rem;
    }

    .ConstructionBox_contentC {
        max-width: 2.82rem;
        /* height: .8rem; */
        word-wrap: break-word;
        color: #ffffff;
        font-size: .3rem;
        text-align: left;
        background: rgba(27, 60, 117, 0.5);
        line-height: .45rem;
        padding: .19rem;
    }

    /* 5 */
    .OurServiceBox_title {
        margin-top: .3rem;
    }


    .OurServiceBox_contentLi {
        border-right: none;
    }

    .OurServiceBox_content {
        margin-top: 1rem;
    }

    .OurServiceBox_titleC {
        width: 100%;
    }

    .OurServiceBox_contentLi_title {
        font-size: .3rem;
        line-height: .45rem;

    }

    .OurServiceBox_contentui {
        flex-wrap: wrap;
        justify-content: space-around;
        align-content: space-around;
        height: 7rem;
    }



}




/* 大屏 / 工业显示器 */
@media (min-width: 1920px) {
    .container {
        max-width: 1680px;
    }
}