*{
    padding: 0;
    margin: 0;
}

.headerbox{
    background-image: url(../image/autodesk_cad/banner.jpg);
    background-size: cover;
    /* background-position: bottom; */
    width: 100%;
    height: 100%;
    /* background-color: aqua; */
}

.header{
    width: 100%;
	max-width: 1430px;
	margin: auto;
    padding:50px;
    height: 560px;
}
.headertitle{
    font-size: 38px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 30px;
    padding-top: 180px;
}

.headertitleremake{
    font-size: 17px;
    color: #fff;
}





.what{
    width: 100%;
	max-width: 1430px;
	margin: auto;
    padding:80px 50px;
}
.whattitle{
    font-size: 32px;
    /* text-align: center; */
    font-weight: 600;
    color: #333; 
    margin-bottom: 20px;
    margin-top: 5%;
}
.whattitleremake{
    /* text-align: center; */
    font-size: 17px;
    margin-bottom: 60px;
    color: #808080; 
}
.whatcontent{
    display: flex;
    align-items: center;
    margin-top: 10px;
    /* width: 20%; */
}
.whatcontentlist{
    width: 7px;
    height: 7px;
    border-radius: 100%;
    background-color: #333;
    margin-right: 20px;
    flex-shrink: 0;   
    /* flex-shrink: 0;拒绝拉伸   */
}
.whatcontenttext{
    font-size: 19px;
    color: #333;
}
.whatimg img{
    width: 100%;
}



.whybox{
    background-image: url(../image/autodesk_cad/2.webp);
    background-size: cover;
}
.why{
    width: 100%;
	max-width: 1430px;
	margin: auto;
    padding:80px 50px;
}
.whytitle{
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    color: #333; 
    margin-bottom: 50px;
    margin-top: 5%;
}
.whycontentitem{
    padding: 30px 20px;
    background-color: #fff;
    border-radius: 8px;
    border: 1px solid rgba(204, 204, 204, 0.432);
}
.whycontentitemtitle{
    display: flex;
    align-items: center;
}
.whycontentitemimg{
    text-align: center;
}
.whycontentitemimg img{
    width: 70%;
}
.whycontentitemtitle{
    font-size: 19px;
    color: #333;
    font-weight: 600;
}
.whycontentitemremake{
    padding: 20px;
    font-size: 15px;
    color: #808080;
}




.boost{
    width: 100%;
	max-width: 1430px;
	margin: auto;
    padding:80px 50px;
}
.boosttitle{
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    color: #333; 
    margin-bottom: 20px;
}
.boosttitleremake{
    text-align: center;
    font-size: 17px;
    margin-bottom: 60px;
    color: #808080; 
}
.boostcontentitem{
    display: flex;
    align-items: center;
}
.boostcontentitemimg{
    text-align: center;
}
.boostcontentitemimg img{
    width: 50%;
}
.boostcontentitemtitle{
    font-size: 19px;
    color: #333;
    font-weight: 600;
}





.threeone{
    width: 100%;
	max-width: 1430px;
	margin: auto;
    padding:80px 50px;
}
.threeonetitle{
    font-size: 32px;
    color: #333;
    margin-bottom: 60px;
    font-weight: 600;
    text-align: center;
}
.threeonecontentitem{
    margin-left: 10%;
    margin-top: 8%;
}
.threeonecontentimg{
    text-align: center;
}
.threeonecontentimg img{
    width: 100%;
    height: 100%;
}
.threeonecontentitemtitle{
    font-size: 22px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 600;
    margin-top: 20%;
}
.threeonecontentitemremake{
    font-size: 17px;
    color: #808080;
    font-weight: 500;
}