*{
    margin: 0;
    padding: 0;
    list-style: none;/*去掉前面的点*/
    text-decoration:none;/*去掉下划线*/
}
header{/* 头部 */
    width: 100%;
    height: 125px;
}
header > .Contact-information{/* 联系方式*/
    display: flex;/*弹性盒模型*/
    width: 1200px;
    height: 25px;
    margin: auto;
    justify-content: space-between;/* 主轴两侧有相同间距对齐 */
    /* background-color: beige; */
}
header > .Contact-information > li{
    display: flex;/*弹性盒模型*/
    font-size: 16px;/*字体大小*/
    line-height:25px;/*文字垂直居中*/
}
header > .Contact-information > li:nth-child(2) > i{
    margin-right: 10px;
} 
header > .Contact-information > li:nth-child(2) > p{
    width: 241px;
    /* background-color: antiquewhite; */
}
header > .Contact-information > li:nth-child(2) > p > span:nth-child(1){
    margin-right: 10px;
}
header > nav{/* 导航 */
    width: 100%;
    height: 50px;
    margin: auto;
    background-color: rgb(194, 194, 194);/* 背景颜色 */
}
header > nav > section{
    display: flex;/*弹性盒模型*/
    height: 50px;
    width: 1200px;
    margin: auto;
    justify-content: space-between;/* 主轴两侧有相同间距对齐 */
    /* background-color: chocolate; */
}
header > nav > section > h1 > img{
    width: 160px;
    height: 45px;
    margin-top: 2.5px;
    /* background-color: aqua; */
}
header > nav > section > h3{
    display: flex;/*弹性盒模型*/
    /* background-color: brown; */
}
header > nav > section > h3 > .Navigation{/* 导航栏 */
    display: flex;/*弹性盒模型*/
}
header > nav > section > h3 > .Navigation > li{
    position: relative;/*相对定位*/
    width: 85px;
    height: 16px;
    margin-top: 18px;
    border-left: 1px solid rgb(134, 134, 134);/*实心边框颜色*/
    /* background-color: rgb(140, 140, 199); */
}
header > nav > section > h3 > .Navigation > li:nth-child(1){
    border-left: 1px solid transparent;/*实心边框*/
}
header > nav > section > h3 > .Navigation > li > a{
    display: inline-block;/*变元素*/
    position: absolute;/* 绝对定位 */
    top: -18px;
    left: -1px;
    z-index:1;/* 定位层级 */
    width: 87px;
    height: 50px;
    font-size:18px;/*字体大小*/
    font-weight:lighter;/*字体粗细*/
    color: rgb(255, 255, 255);/* 字体颜色 */
    line-height: 50px;/*文字垂直居中*/
    text-align: center; /*文字水平居中*/
}
/* 客户信息 */
header > section{
    width: 100%;
    height: 50px;
    margin: auto;
    background-color: rgb(104, 104, 104);
}
header > section > ul{
    display: flex;/*弹性盒模型*/
    width: 1200px;
    height: 50px;
    margin: auto;
    justify-content: center;/* 主轴居中 */
    align-items: center;/* 测轴居中 */
}
header > section > ul > li{
    font-size:18px;/*字体大小*/
    color: rgb(248, 248, 248);
    margin: -3px 0 0 10px;
}
header > section > ul > li > input{
    height: 20px;
    outline: 0; /*去掉输入边框闪光*/
    text-indent: 15px;  /*文本缩进*/
    border-radius: 5px;/* 圆角大小 */
}
header > section > ul > li:nth-child(2) > input{
    border: 2px solid rgb(218, 218, 218);/*实心边框颜色*/
    transition: 0.2s linear;
}
header > section > ul > li:nth-child(2):hover > input{
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(2) > input:focus{
    border: 2px solid rgb(157, 150, 255);/*实心边框颜色*/
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(3){
    margin-left: 30px;
}
header > section > ul > li:nth-child(4) > input{
    border: 2px solid rgb(218, 218, 218);/*实心边框颜色*/
    transition: 0.2s linear;
}
header > section > ul > li:nth-child(4):hover > input{
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(4) > input:focus{
    border: 2px solid rgb(157, 150, 255);/*实心边框颜色*/
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(5) > input{
    width: 78px;
    margin-left: 20px;
    border: 2px solid rgb(218, 218, 218);/*实心边框颜色*/
    transition: 0.2s linear;
}
header > section > ul > li:nth-child(5):hover > input{
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(5) > input:focus{
    border: 2px solid rgb(157, 150, 255);/*实心边框颜色*/
    box-shadow:0px 0px 5px 0px rgb(187, 187, 187);/*阴影*/
}
header > section > ul > li:nth-child(6) > input{
    width: 80px;
    height: 21px;
    margin: 2px 0 0 22px;
    border: 2px solid rgb(133, 133, 133);/*实心边框颜色*/
    margin-left: 2px;
    background-color: blueviolet;
    outline: 0; /*去掉输入边框闪光*/
    color: rgb(243, 243, 243);
    text-indent: 0px;  /*文本缩进*/
}
header > section > ul > li:nth-child(6) > input:hover{
    cursor: pointer;/*小手*/
    background-color: rgb(181, 240, 255);
    color: rgb(36, 36, 36);
}
header > section > ul > li:nth-child(6) > input:focus{
    border: 2px solid rgb(104, 104, 104);/*实心边框颜色*/
    background-color: rgb(181, 240, 255);
    color: rgb(36, 36, 36);
}
header > section > ul > li:nth-child(7) > input{
    width: 70px;
    height: 30px;
    margin: 2px 0 0 22px;
    border: 2px solid rgb(228, 228, 228);/*实心边框颜色*/
    background-color: rgb(255, 179, 108);
    outline: 0; /*去掉输入边框闪光*/
    font-size:15px;/*字体大小*/
    text-indent: 0px;  /*文本缩进*/
}
header > section > ul > li:nth-child(7) > input:hover{
    cursor: pointer;/*小手*/
    background-color: rgb(115, 115, 255);
}
header > section > ul > li:nth-child(7) > input:focus{
    border: 2px solid rgb(0, 247, 255);/*实心边框颜色*/
    background-color: rgb(115, 115, 255);
    color: aliceblue;
}