main{
    user-select: none;
    width: 100%;
    height: 1935px;
    /* background-color: rgb(206, 150, 150); */
}
/* 执行人 */
main > ul:first-of-type{
    width: 100%;
    height: 800px;
    background-color: rgb(192, 192, 192);
}
main > ul:first-of-type{
    display: flex;/*弹性盒模型*/
    justify-content: center;/* 主轴居中 */
}
main > ul:first-of-type > li:first-of-type{
    width: 650px;
    height: 700px;
    margin-top: 50px;
    background-color: rgb(98, 98, 98);
    box-shadow:25px 25px 50px -22px rgb(122, 122, 122);/*阴影*/
}
main > ul:first-of-type > li:first-of-type > section{
    position: relative;/*相对定位*/
    width: 650px;
    height: 700px;
    background-color: rgb(153, 153, 153);
    border-radius: 100% 0 100% 0/10% 0 10% 0;/*圆角大小*/
}
main > ul:first-of-type > li:last-of-type{
    width: 850px;
    height: 800px;
    /* background-color: rgb(117, 179, 117); */
}
main > ul:first-of-type > li > ul{
    margin-left: 50px;
}
main > ul:first-of-type > li > ul > li{
    color: rgb(0, 0, 0);
}
main > ul:first-of-type > li:first-of-type > section > ul{
    position: relative;/*相对定位*/
    left: 20px;
    top: 70px;
    /* margin-bottom: 50px; */
}
/* main > ul:first-of-type > li:first-of-type > section > ul:first-of-type{
    /* margin: 90px 0 0 80px; *
} */
main > ul:first-of-type > li:first-of-type > section > ul{
    padding-top: 0.1px;
}
main > ul:first-of-type > li:first-of-type > section > ul > li:first-of-type{
    width: 150px;
    height: 45px;
    margin-top: 50px;
    background-color: lightgrey;
    font-size:30px;/*字体大小*/
    line-height:43px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
    border-radius: 45px;/*圆角大小*/
}
/* main > ul:first-of-type > li:first-of-type > section > ul:nth-child(2) > li:first-of-type{
    margin-top: 50px;
}
main > ul:first-of-type > li:first-of-type > section > ul:last-of-type > li:first-of-type{
    margin-top: 50px;
} */
main > ul:first-of-type > li:first-of-type > section > ul > li:last-of-type{
    /* background-color: aqua; */
    margin: 30px 0 0 50px;
}
main > ul:first-of-type > li:first-of-type > section > ul > li:last-of-type > p{
    font-size:15px;/*字体大小*/
    line-height:25px;/*字体垂直居中*/
    color: rgb(41, 34, 26);
}
main > ul:first-of-type > li:last-of-type > ul{
    display: flex;/*弹性盒模型*/
}
main > ul:first-of-type > li:last-of-type > ul > li:first-of-type{
    display: flex;/*弹性盒模型*/
    margin-top: 150px;
}
main > ul:first-of-type > li:last-of-type > ul > li:first-of-type > p:first-of-type{
    width: 50px;
    height: 50px;
    font-size:40px;/*字体大小*/
}
main > ul:first-of-type > li:last-of-type > ul > li:first-of-type > p:last-of-type{
    width: 50px;
    height: 50px;
    margin-top: 80px;
    font-size:60px;/*字体大小*/
}
main > ul:first-of-type > li:last-of-type > ul > li:last-of-type{
    width: 600px;
    height: 700px;
    margin: 50px 0 0 70px;
    /* background-color: rgb(53, 53, 53); */
}
/* 公司简介 */
main > ul:nth-child(2){
    display: flex;/*弹性盒模型*/
    width: 1500px;
    height: 600px;
    margin: 80px auto 115px;
    /* background-color: gold; */
}
main > ul:nth-child(2) > li:first-of-type{
    position: relative;/*相对定位*/
    top: 100px;
    width: 700px;
    height: 500px;
    background-color: rgb(149, 143, 107);
}
main > ul:nth-child(2) > li > ul{
    position: relative;/*相对定位*/
}
main > ul:nth-child(2) > li > ul > li:first-of-type{
    position: absolute;/* 绝对定位 */
    left: -30px;
    width: 770px;
    height: 75px;
    border-bottom: 3px solid rgb(123, 100, 255);/*实心边框*/
}
main > ul:nth-child(2) > li > ul > li:last-of-type{
    position: absolute;/* 绝对定位 */
    left: 25px;
    top: 30px;
    width: 700px;
    height: 520px;
    border-left: 3px solid rgb(123, 100, 255);/*实心边框*/
}
main > ul:nth-child(2) > li > ul > li:last-of-type > section:first-of-type{
    position: absolute;/* 绝对定位 */
    left: 90px;
    top: 90px;
    width: 590px;
    height: 398px;
    background-color: rgb(153, 153, 153);
    border-radius: 0 0 100px 0;/*圆角*/
    box-shadow:20px 20px 50px -30px rgb(88, 88, 88);/*阴影*/
}
main > ul:nth-child(2) > li > ul > li:last-of-type > section:first-of-type > p{
    width: 500px;
    margin: 30px auto;
    line-height:30px;/*字体垂直居中*/
    color: rgb(224, 245, 238);
    text-indent: 64px;  /*文本缩进*/
    /* background-color: aquamarine; */
}
main > ul:nth-child(2) > li > ul > li:last-of-type > section:last-of-type{
    position: relative;/*相对定位*/
    top: 277px;
    left: 585px;
    width: 125px;
    height: 93px;
    border-right: 3px solid rgb(123, 100, 255);/*实心边框*/
    border-bottom: 3px solid rgb(123, 100, 255);/*实心边框*/
    border-radius: 0 0 100% 0;/*圆角大小*/
}
main > ul:nth-child(2) > li > ul > li:last-of-type > ul{
    position: relative;/*相对定位*/
    top: 50px;
}
main > ul:nth-child(2) > li > ul > li:last-of-type > ul > li{
    margin: 5px 0 0 20px;
    font-size:23px;/*字体大小*/
    font-weight:bold;/*字体粗细*/
    color: rgb(51, 51, 51);
}
main > ul:nth-child(2) > li > ul > li:last-of-type > ul > li:last-of-type{
    position: relative;/*相对定位*/
    left: -15px;
    width: 45px;
    height: 45px;
    background-color: rgb(0, 134, 134);
    color: rgb(255, 255, 255);
    border-radius: 100%;/*圆角大小*/
}
 main > ul:nth-child(2) > li > ul > li:last-of-type > ul > li:last-of-type > P{
    position: relative;/*相对定位*/
    left: 15px;
} 
/* 合作商 */
main > ul:last-of-type{
    width: 1500px;
    height: 175px;
    margin: auto;
    border-top: 10px solid rgb(123, 100, 255);/*实心边框*/
    border-left: 10px solid rgb(123, 100, 255);/*实心边框*/
    border-right: 10px solid rgb(123, 100, 255);/*实心边框*/
    border-radius: 100% 100% 100px 100px/ 500px 500px 100px 100px;/*圆角大小*/
    /* background-color: greenyellow; */
}
main > ul:last-of-type > li:first-of-type{
    position: relative;/*相对定位*/
    top: -40px;
    width: 220px;
    height: 70px;
    margin: auto;
    background-color: rgb(255, 255, 255);
}
main > ul:last-of-type > li:first-of-type > p{
    font-size:45px;/*字体大小*/
    line-height:65px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
}
main > ul:last-of-type > li:last-of-type{
    margin-top: 60px;
}
main > ul:last-of-type > li:last-of-type > ul{
    display: flex;/*弹性盒模型*/
    width: 1500px;
    height: 200px;
    flex-wrap: wrap;/*弹性换行*/
    justify-content: space-around;/* 主轴两侧有相同间距对齐 */
    align-content: space-between;/* 两侧有相同间距居中 */
}
main > ul:last-of-type > li:last-of-type > ul > li{
    width: 215px;
    height: 85px;
    border: 2px solid rgb(123, 100, 255);/*实心边框*/
    background-color: hotpink;
    font-size:30px;/*字体大小*/
    line-height:80px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
}