/* 行业需求 */
.demand-box {
    padding: 120px 0;
}

.demand-btit h3 {
    font-size: 32px;
    font-weight: 600;
}

.demand-btit h4 {
    font-size: 28px;
    font-weight: 600;
    color: #9c0101;
    margin-top: 10px;
}


.demand-bcnt {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
}

.demand-bctxt {
    width: 48%;
}

.demand-bctxt p {
    font-size: 15px;
    line-height: 48px;
}

.colorp {
    color: #616161;
}

.demand-bcimg {
    width: 49%;
}

.demand-bcimg img {
    width: 100%;
    height: auto;
}



/* 超高层建筑特点 */
.features-box {
    background-color: #ededed;
    padding: 120px 0;
}

.features-bcnt {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.features-bcimg {
    width: 43%;
}

.features-bcimg img {
    width: 100%;
    height: auto;
}

.features-bctxt {
    width: 48%;
}

.features-bctxt h3 {
    font-size: 24px;
    font-weight: 600;
}

.features-bctxt h4 {
    font-size: 22px;
    font-weight: 600;
    color: #9c0101;
    margin:5px 0 20px;
}

.features-bctxt p {
    font-size: 15px;
    line-height: 48px;
}




/* 行业特点分析 */
.analysis-box {
    padding: 120px 0;
}

.analysis-btit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.analysis-btit h3 {
    font-size: 32px;
    font-weight: 600;
}

.analysis-btit h4 {
    font-size: 28px;
    font-weight: 600;
    color: #9c0101;
}

.analysis-bul {
    padding-top: 110px;
    display: flex;
    justify-content: space-between;
}

.analysis-bul li {
    width: 49%;
    position: relative;
    overflow: hidden;
    border-radius: 23px;
}

.analysis-blic {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .7);
    border-radius: 23px;
}

.blic-box {
    height: 100%;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blic-box h5 {
    text-align: center;
    font-size: 22px;
    font-weight: 600;
    color: #ffffff;
   
}
.blic-box h5:nth-child(2){
    margin-bottom: 20px;
}

.blic-box p {
    font-size: 15px;
    color: #ffffff;
    line-height: 36px;
}



/* 我们的方案 */
.solution-bja{
    background-image: url("../images/picbj02.png");
}
.solution-bjb{
    background-image: url("../images/picbj03.png");
}
.solution-bjc{
    background-image: url("../images/picbj04.png");
}
.solution-bjd{
    background-image: url("../images/picbj05.png");
}
.solution-bje{
    background-image: url("../images/picbj06.png");
}
.solution-bjf{
    background-image: url("../images/picbj07.png");
}

.solution-box {
    min-height: 90vh;
    background-size: 100% 100%;
    padding: 120px 0;
}

.solution-bcnt {
    display: flex;
    justify-content: space-between;
}

.solution-btit {
    width: 30%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 10px;
}

.solution-btit h2 {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
}

.solution-btxt {
    width: 70%;
}

.solution-btxt p {
    color: #ffffff;
    font-size: 15px;
    line-height: 48px;
    margin-bottom: 15px;
}






@media only screen and (max-width: 1420px) {
    .demand-box {
        padding: 90px 0;
    }

    .demand-btit h3 {
        font-size: 30px;
    }

    .demand-btit h4 {
        font-size: 26px;
        margin-top: 5px;
    }

    .demand-bcnt {
        margin-top: 20px;
    }

    .demand-bctxt p {
        font-size: 14px;
        line-height: 38px;
    }
    .demand-bcimg{
        width: 50%;
    }

    .features-box {
        padding: 90px 0;
    }

    .features-bctxt h3 {
        font-size: 22px;
    }

    .features-bctxt h4 {
        font-size: 20px;
        margin-top: 5px;
    }

    .features-bctxt p {
        font-size: 14px;
        line-height: 38px;
    }




    .analysis-box {
        padding: 90px 0;
    }

    .analysis-btit h3 {
        font-size: 30px;
    }

    .analysis-btit h4 {
        font-size: 26px;
    }

    .analysis-bul {
        padding-top: 80px;
    }

    .blic-box {
        padding: 30px 10px;
    }

    .blic-box h5 {
        font-size: 18px;
    }
    .blic-box h5:nth-child(2){
        margin-bottom: 10px;
    }

    .blic-box p {
        font-size: 14px;
        line-height: 30px;
    }



    .solution-box {
        min-height: 80vh;
        padding: 90px 0;
    }

    .solution-btit h2 {
        font-size: 24px;
        margin-bottom: 15px;
    }

    .solution-btxt p {
        font-size: 14px;
        line-height: 38px;
        margin-bottom: 10px;
    }

}



@media only screen and (max-width: 769px) {
    .demand-box {
        padding: .9rem .1rem;
    }

    .demand-btit h3 {
        font-size: 20px;
    }

    .demand-btit h4 {
        font-size: 18px;
        margin-top: .1rem;
    }

    .demand-bcnt {
        margin-top: .2rem;
        flex-direction: column;
    }

    .demand-bctxt {
        width: 100%;
    }

    .demand-bctxt p {
        font-size: 14px;
        line-height: 26px;
    }

    .demand-bcimg {
        width: 100%;
        margin-top: .2rem;
    }



    .features-box {
        padding: 1.2rem .1rem;

    }

    .features-bcnt {
        flex-direction: column;
    }
    .features-bcimg {
        width: 100%;
    }
    .features-bctxt {
        width: 100%;
        margin-top: .2rem;
    }
    .features-bctxt h3 {
        font-size: 20px;
    }
    .features-bctxt h4 {
        font-size: 18px;
        margin-top: .1rem;
    }
    .features-bctxt p {
        font-size: 14px;
        line-height: 26px;
    }



    .analysis-box {
        padding: .9rem .1rem;
    }
    .analysis-btit h3 {
        font-size: 20px;
    }
    .analysis-btit h4 {
        font-size:18px;
    }

    .analysis-bul {
        padding-top: .8rem;
        flex-direction: column;
    }
    .analysis-bul li {
        width: 100%;
        margin-bottom: .2rem;
    }
    .blic-box {
        padding: .2rem .1rem;
    }
    .blic-box h5 {
        font-size: 16px;
    }
    .blic-box h5:nth-child(2){
        margin-bottom: .1rem;
    }
    .blic-box p {
        font-size: 12px;
        line-height: 16px;
    }

    .solution-box {
        min-height: 50vh;
        padding: 1.2rem .1rem;
    }
    .solution-bcnt{
        flex-direction: column;
    }
    .solution-btit {
        width: 100%;
        align-items: flex-start;
    }
    .solution-btit h2 {
        font-size: 18px;
        margin-bottom: .2rem;
    }

    .solution-btxt {
        width: 100%;
    }
    .solution-btxt p {
        font-size: 14px;
        line-height: 20px;
        margin-bottom: .1rem;
    }


}