.rectangle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.rectangle .rectangle-item {
    background-color: #FFFFFF;
    width: 23%;
    height: 450px;
    padding: 10px 20px;
    border-radius: 10px;
}

.rectangle .rectangle-item>span:nth-child(1) {
    font-weight: bold;
    display: flex;
    height: 100px;
    align-items: center;
    justify-content: center;
}



.dl-box {
    width: 100%;
}

.dl-box .dl-item {
    display: flex;
    justify-content: flex-start;
}

.dl-item:nth-child(2) {
    margin-top: 20px;
}

.dl-item .dl-l {
    width: 6rem;
    height: 180px;
    background-color: #3F85F9;
    color: #FFFFFF;
    border-radius: 23px;
    padding: 0 10px;
}

.dl-r {
    box-shadow: 0px 2px 9px 1px rgba(135, 180, 255, 0.55);
    background-color: #FFFFFF;
    border-radius: 10px;
    margin-left: 1.25rem;
    padding: 15px;
    width: calc(100% - 116px);
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
}

.dl-r .dl-r-b {
    justify-content: flex-start;
}

.dl-r .dl-r-d {
    display: flex;
    flex-direction: column;
    text-align: left;
    margin-left: 1.25rem;
}

.dl-r-d span:nth-child(1) {
    font-weight: bold;
}

.step {
    margin-top: 2.4375rem;
}

.step .step-item {
    width: 24%;
    height: 19.6875rem;
    background: #FFFFFF;
    border-radius: 10px;
    border: 4px solid #FFFFFF;
}

.step-item .dot-num {
    display: inline-block;
    color: #FFFFFF;
    background-color: #0C45FF;
    width: 3rem;
    border-radius: 50%;
    text-align: center;
    line-height: 3rem;
}

.step-item .step-item-num {
    padding: 1.125rem;
}

.step-item .step-item-num>span:nth-child(2) {
    font-style: italic;
}

.step-item .step-item-content {
    color: #718098;
    line-height: 28px;
    text-align: left;
    padding: 0 10px;
}

.step .step-img {
    margin: .3125rem;
}

.top78 {
    margin-top: 4rem;
}

.lb-box {
    width: 100%;
    background-color: #fff;
    margin-top: 25px;
    border-radius: 10px;
}

.lb-box .lb-item {
    padding: 2.5rem;
    align-items: flex-start;
    flex-wrap: wrap;
    height: 350px;
}

.lb-box .lb-item>span {
    display: flex;
    width: 30%;
    text-align: left;
    color: #3E3E3E;
    transition: all .5s ease-in;
    background-color: #FFFFFF;
    height: 100%;
    align-items: center;
    padding: 0 15px;
    box-shadow: 0px 2px 9px 1px rgba(135, 180, 255, 0.55);
    z-index: 10;
}


.lb-box .lb-item>img {
    width: 65%;
    height: 100%;
    object-fit: cover;
    transition: all .5s ease-in;
}


@media(max-width:1440px) {

    .lb-box .lb-item {
        padding: 1.5rem;
    }
}

@media(max-width:1200px) {
    .rectangle .rectangle-item {
        height: 31.25rem;
    }
}

@media(max-width:1000px) {
    .top78 {
        margin-top: 1.75rem;
    }

    /* .rectangle, */
    .matrix {
        padding: 0 .625rem;
    }

    .rectangle .rectangle-item {
        margin-bottom: 20px;
        width: 48%;
        height: 350px;
    }


    .step {
        flex-wrap: wrap;
        padding: .625rem;
    }

    .step .step-item {
        width: 48%;
        margin-bottom: .625rem;
    }

    .step .step-img {
        display: none;
    }

    .step-item .dot-num {
        width: 1.875rem;
        height: 1.875rem;
        line-height: 1.875rem;
    }

    .lb-box .lb-item {
        height: auto;
    }

    .lb-box {
        margin-top: 0;
    }


    .lb-box .lb-item>span {
        width: 100%;
        color: #3E3E3E;
        padding: 15px;
        text-align: justify;
    }

    .lb-box .lb-item>img {
        margin-top: 1.25rem;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .dl-box {
        width: 95%;
        margin: 0 auto;
    }
}


@media(max-width:600px) {

    .dot {
        margin-bottom: 20px;
    }

    .rectangle .rectangle-item {
        width: 95%;
        height: 300px;
        margin: 0 auto;
        margin-bottom: 20px;

    }

}