*{
    margin: 0 auto;
}

#main{
    margin: 0 auto;
    height: 1840px;
    width: 100%;
    min-width: 1000px;
}

#first_part{
    /*background-color: #101010;*/
    height: 480px;
    width: 100%;
    min-width: 1000px;
    background-image: url("../img/定制化.png");
    background-size: 100% 480px;
}

.customization_title{
    width: 120px;
    height: 56px;
    font-size: 40px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 0px;
    position: relative;
    top: 195px;
    margin-left: 20%;
    user-select: none;
}

#customization_part{
    /*background-color: #070707;*/
    width: 100%;
    min-width: 1000px;
    height: 660px;
}

.total_div{
    background-color: #070707;
    width: 100%;
    min-width: 1000px;
    height: 60px;
}

.soft_cus{
    width: 96px;
    height: 22px;
    font-size: 16px;
    font-weight: 300;
    color: #FFFFFF;
    line-height: 0px;
    float: left;
    margin: 30px 109px 0 0;
    position: relative;
    left: 40%;
    user-select: none;
}

.hard_cus{
    width: 96px;
    height: 22px;
    font-size: 16px;
    font-weight: 300;
    color: #FFFFFF;
    line-height: 0px;
    float: left;
    margin: 30px 109px 0 0;
    position: relative;
    left: 40%;
    user-select: none;
}

#visible_div{
    width: 70%;
    min-width: 900px;
    height: 490px;
    position: relative;
    top: 120px;
    background-image: url("../img/软件定制开发.png");
    background-size: 100% 490px;
}

.soft_cus:hover .left_line{
    animation: little_horizon 0.5s ease;
}

.left_line{
    width: 70%;
    height: 5px;
    background-color: #FFFFFF;
    position: relative;
    top: 25px;
}

.right_line{
    width: 0%;
    height: 5px;
    background-color: #FFFFFF;
    position: relative;
    top: 25px;
    transition: width 0.5s;
    /*display: none;*/
}

.hover-decline{
    width: 0%;
    transition: width 0.5s ease;
}

.hover-plus{
    width: 70%;
    transition: width 0.5s ease;
}

.hard_cus:hover .right_line{
    width: 70%;
}

.soft_cus:hover .left_line{
    width: 70%;
}

.visible_div_title{
    width: 180px;
    height: 42px;
    font-size: 30px;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 0px;
    padding-top: 140px;
}

.visible_div_info{
    width: 75%;
    min-width: 600px;
    height: 79px;
    font-size: 24px;
    font-weight: 300;
    color: #FFFFFF;
    line-height: 42px;
    padding-top: 30px;
    text-indent: 2em;
}

#invisible_div{
    width: 70%;
    min-width: 900px;
    height: 490px;
    position: relative;
    top: 120px;
    display: none;
    background-image: url("../img/硬件定制开发.png");
    background-size: 100% 490px;
}