.banner_bg_op{background-color: rgba(0,0,0,.3)}
.banner_content{left: 50%; transform: translate(-50%,-50%);text-align: center;}

/*功能简介*/
.features{display: flex;align-items: center;justify-content: flex-start;margin-top: 40px;}
.features .left{width: 14%;text-align: left;}
.features .left span{display:inline-block;width: 120px;height: 120px;line-height: 120px;margin-right: 20px;
    text-align: center;border-radius: 20px;border: 1px solid #333;color: #FF8664;font-weight: 600;font-size: 50px;}
.features .right{width: 86%;}
.features .right .title{font-weight: 600;font-size: 24px;color:#FF8664;text-align: left; }
.features .right .text{font-size: 16px;color: #6A6A6A;margin-top: 10px;text-align: justify;line-height: 36px;}
@media (max-width: 768px) {
    .banner_content{left: 0% !important;text-align: center;width: 100%;transform: translate(0,-50%)}
    .banner_content .sub{white-space:pre-wrap;padding: 0 15px;}
    /**/
    .features{margin-top: 15px;}
    .features .left{width: auto;}
    .features .left span{
        display: inline-block;
        width: 60px;
        height: 60px;
        line-height: 60px;
        margin-right: 10px;
        border-radius: 10px;
        font-size: 30px;
    }
    .features .right .title{font-size: 18px;}
    .features .right .text{font-size: 14px;line-height: 22px;margin-top: 5px;}
}