.aboutBox .right {
    /* max-width: 540px; */
    width: 28%;
    text-align: center;
}
.aboutBox .left {
    /* max-width: 540px; */
    width: 70%;
}

.aboutBox .right img{
	max-width: 300px;
	max-height: 300px;
}

.aboutBox .right .Image img {
    width: 100%;
    max-width: 400px;
    margin: 20px auto 0;
    max-height: 300px;
    object-fit: contain;
}

.aboutBox .flex .text {
    width: 70%;
    /* max-width: 600px; */
}

.aboutBox .Image.smallimg {text-align: center;width: 25%;max-width: initial;}

.aboutBox .Image.midimg {max-width: 400px;display: block;margin: 20px 0;}

.perparation .aboutBox dl {
    margin: 30px 0 0!important;
}
/*manner*/
.manner .aboutBox .flex img {
    max-width: 300px;
    max-height: 300px;
    object-fit: contain;
}

.manner .aboutBox .flex .Image {
    text-align: center;
}
.manner .aboutBox .flex .Image {
    width: 30%;
    max-width: 360px;
}
.manner .aboutBox .flex {
    margin: var(--mar50) 0 0;
}

/*tuya*/
.flow .aboutBox img {
    margin: 5px 0 0;
}

.aboutSougi .aboutBox dl dt.f40 {
    font-size: clamp(30px, 5vw, 40px);
}
.knowledge-flow-list{
    display: flex;
    justify-content:center;
}
.knowledge-flow-list > li{
    margin-right: 20px;
    position: relative;
}
.knowledge-flow-list > li::after{
    content:"";
    border-top: 8px solid #000;
    border-right: 12px solid transparent;
    border-left: 12px solid transparent;
    transform: rotate(270deg);
    display: inline-block;
    position: absolute;
    top:calc(50% - 5px);
    right:-22px;
}
.knowledge-flow-list > li:last-child{
    margin-right:0;
}
.knowledge-flow-list > li:last-child::after{
    display: none;
}
.knowledge-flow-image{
    max-height:360px;
    height: 30vw;
}
@media (max-width:768px) {
    .knowledge-flow-list{
        flex-direction: column;
    }
    .knowledge-flow-image{
        height: auto;
        width:100%;
    }
    .knowledge-flow-list > li {
        margin-right:0;
        margin-bottom: 10px;
    }
    .knowledge-flow-list > li:last-child{
        margin-bottom:0;
    }
    .knowledge-flow-list > li::after{
        content: "";
        display: flex;
        position: absolute;
        right: 0;
        left: 0;
        margin: 0 auto;
        bottom: -9px;
        top:auto;
        width: 0;
        transform: none;
    }
}
@media screen and (max-width: 768px){
    .aboutBox .flex .text{
        width:100%;
    }
}