.Nav {
    height: 85px;
    width: 100%;
    min-width: 1150px;
    display: flex;
    display: -webkit-flex;
    /* Safari */
    flex-direction: row;
    flex-wrap: nowrap;
    /*     justify-content: center; */
    margin: 0px auto;
    /* 防止换行 */
    position: fixed;
    background-color: #FFFFFF;
    z-index: 5;
    justify-content: center;
   /*  box-shadow: 0px -0.1px 3px 0px  rgb(233, 230, 230); */
   box-shadow: 0 0 20px #F8F8F8, 0 0 10px #eeeeee;
}

.Nav_Left {
    /*width: 42%;*/
    height: 85px;
    max-width: 800px;
    width: 32%;
    display: flex;
    display: -webkit-flex;
    /* Safari */
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: center;
}

.Nav_Right {
    height: 85px;
    max-width: 1150px;
    width: 68%;
    /* width: 58%;*/
    display: flex;
    display: -webkit-flex;
    /* Safari */
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: center;
    /*   margin-left: auto; */
    /* 将元素右对齐 */
}

.Nav_Left .logo img {
    height: 35px;
    width: 58px;
    margin-top: 33px;
}

.Nav_Left .logo {
    width: 350px;
    display: flex;
    display: -webkit-flex;
    /* Safari */
    flex-wrap: nowrap;
    flex-direction: row-reverse;
    padding-right: 15px;
    box-sizing: border-box;
}

.Nav_Left .company-name img {
    margin-top: 33px;
    height: 35px;
}


.Nav_Right ul {
    height: 110px;
    width: 90%;
    box-sizing: border-box;
    display: flex;
    display: -webkit-flex;
    /* Safari */
    flex-wrap: nowrap;
    flex-direction: row;
    margin-left: 10%;
    margin-right: auto;
    justify-content: center;

}

.Nav_Right ul li {
    padding-left: 10px;
    padding-right: 10px;
    height: 110px;
    line-height: 110px;
    margin-left: 8px;
    margin-right: 8px;

}

.Nav_Right ul li a {
    color: #656F95;
    font-weight: 400;
    font-size: 1.2rem;
    position: relative;

}



#header {
    background-color: #EEEFEF;
    height: 100%;
}

#header .Banner {
    margin-top: 85px;
    height: auto;
    width: 100%;
    /*  max-width: 2400px; */
    min-width: 1150px;
    /*   max-height: 1990px; */
    padding-bottom: 60px;
    /*    box-sizing: border-box; */
}

#header .Banner .Top {
    height: auto;
    min-height: 490px;

    display: flex;
    display: -webkit-flex;
    flex-direction: column;
    justify-content: center;
    /* 在水平方向上居中 */
    position: relative;
    display: block;
}

#header .Banner .Top img {
    height: auto;
    min-width: 1150px;
    width: 100%;
    background-color: rgb(180, 178, 178);
    /* 设置图片为绝对定位 */
    z-index: 1;
    /* 设置图片的层叠顺序较高 */
}

#header .Banner .Top .title {
    font-size: 4rem;
    font-weight: bold;
    color: #013082;
    margin: 0px auto;
    position: absolute;
    /* 设置标题为相对定位，以便在图片上面定位 */
    z-index: 3;
    /* 设置标题的层叠顺序较高 */
      top: 80px; 
/*     top: 160px; */
    text-align: center;
    width: 100%;

}

#header .Banner .Bottom {
    /*    height: 470px; */
    height: 100%;
    width: 100%;
    display: flex;
    display: -webkit-flex;
    flex-direction: column;
    flex-wrap: nowrap;
    margin-top: 20px;

}

#header .Banner .Bottom .item {

    margin: 0px auto;
    height: auto;
    min-height: 250px;
    max-height: 750px;
    width: 100%;
    display: flex;
    display: -webkit-flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;

}

#header .Banner .Bottom .item li {
    margin: 0px auto;
    height: 200px;
    width: 100%;
    max-width: 450px;
    margin-left: 20px;
    margin-right: 20px;
    text-align: center;
    align-items: center;
}

#header .Banner .Bottom .item li img {
    margin:0px auto;
    height: 250px;
    width: 90%;
    max-width: 430px;
    margin: 0px auto;

}

#header .Banner .Bottom .title {
    /*  position: relative;
    top: 50px; */
    font-size: 1.8rem;
    color: #231815;
    margin: 0 auto;
}












#content_1 .Bottom {
    background-color: #EEEFEF;
    /*    height: 470px; */
    height: 100%;
    width: 100%;
    display: flex;
    display: -webkit-flex;
    flex-direction: column;
    flex-wrap: nowrap;
    margin-top: 20px;

}

#content_1 .Bottom .item {

    margin: 0px auto;
    height: auto;
    min-height: 250px;
    max-height: 750px;
    display: flex;
    display: -webkit-flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;

}

#content_1 .Bottom .item li {
    width: 455px;
    margin: 20px 0px;
    margin-bottom: 50px;
}

#content_1 .Bottom .item li img {
    height: 250px;
    width: 90%;
    max-width: 430px;
    margin: 0px 25px;
    background-color: black;
}

#content_1 .Bottom .title {
    /*  position: relative;
    top: 50px; */
    font-size: 1.5rem;
    color: #231815;
    margin: 0 auto;
}