.system-box{
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    margin-top: 20px;
    position: relative;
    padding-left: 20px;
}

.system-box span{
    display: block;
    position: absolute;
    top: 10px;
    left: 5px;
    width: 5px;
    height: 20px;
    background-color: rgb(251, 87, 0);
}
.system-box a{
    color: #333333;
    float: left;
}
.system-box a:hover{
    color: #0858B0;
}
.system-box i{
    color: #333333;
    float: left;
    padding: 0 10px;
}

/* 选项按钮 */
.system-btn-top{
    margin-top: 20px;
}

.system-btn-top ul{
    display: flex;
    justify-content: center;
}

.system-btn-top ul li{
    width: 100px;
    height: 40px;
    line-height: 40px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid #333;
    margin-right: 20px;
}

.system-btn-top ul li a {
    color: #333;
    display: block;
}

.system-btn-top ul li.active{
    border: 1px solid  rgb(0, 139, 221);
}
.system-btn-top ul li.active a{
    color: rgb(0, 139, 221);
}

/* 内容 */
.system-describe {
    width: 1152px;
    background-color: #fff;
    margin: 20px auto 0;
}

/* .system-describe h3{
    text-align: center;
    font-size: 20px;
    padding-top: 20px;
} */

.system-describe-img{
    margin-top: 20px;
    width: 1152px;
    margin: 0 auto;
}

.system-describe-img img{
    width: 100%;
    height: 100%;
}