.pt30{
    padding-top: 30px;
}

.produce_nav_fa{
    margin-top: 90px;
    background: #ffffff;
}

.produce_nav{
    background-color: #f2f2f2;
    height: 40px;
    line-height: 40px;
}

.info_top{
    background-color: #f7f7f7;
    border-bottom: 1px solid #2256AA;
}

.info_tip{
    color: #ffffff;
    background-color: #2256AA;
    display: inline-block;
    padding: 5px 10px;
}

.title{
    padding-top: 30px;
}

.info_main{
    padding: 20px 30px;
    color: #747474;
}

.info_p{
    width: 300px;
    font-size: 14px;
    margin-bottom: 10px;
}

.w200{
    width: 200px;
}

.info_list{
    width: 700px;
    margin: auto;
    font-size: 0;
}

.info_video{
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 15px 0;
}

.info_list img{
    width: 700px;
}

.introduce{
    display: flex;
    margin-bottom: 30px;
}

.introduce_left{
    width: 420px;
    margin-right: 20px;
}
.introduce_left_img{
    width: 420px;
    margin-bottom: 20px;
}
.introduce_left_list{
    width: 420px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.introduce_left_list_btn{
    width: 24px;
    height: 60px;
    font-size: 20px;
    font-weight: 600;
    color: #cccccc;
    line-height: 60px;
    text-align: center;
}

.introduce_left_list_imgs{
    width: 320px;
    height: 62px;
}

.introduce_left_list_imgs img{
    width: 60px;
    height: 60px;
}

.selected{
    border: 1px solid #2256AA;
}

.introduce_right{
    width: 460px;
}

.introduce_title{
    font-size: 16px;
    font-weight: 600;
    color: #000000;
    line-height: 30px;
    padding: 15px 0;
}

.introduce_tip{
    color: #999999;
    font-size: 12px;
    line-height: 30px;
    padding: 10px 12px;
    margin: 0px 0 20px;
    background: linear-gradient(90deg, #F0EFEF 0%, #F3F3F3 100%);
}

.introduce_tip_left{
    min-width: 50px;
    display: inline-block;
    text-align-last: justify;
    text-align: justify;
    margin-right: 5px;
}

.introduce_p{
    color: #747474;
    font-size: 14px;
    line-height: 34px;
}


@media screen and (max-width: 750px) {
    .w1200, .w900, .info_list img, .introduce_right, .introduce_left_img, .introduce_left_list{
        width: 100%;
    }

    .info_list, .title{
        width: 90%;
    }

    .info_main{
        padding: 10px 40px;
    }

    .info_p{
        /*width: 150px;*/
        font-size: 10px;
        margin: 1px;
    }
    .title{
        padding-top: 6px;
    }

    .info_tip{
        font-size: 12px;
    }

    .produce_nav_fa{
        margin-top: 58px;
    }

    .produce_nav{
        height: 26px;
        padding: 0 10px;
        box-sizing: border-box;
        line-height: 26px;
    }

    .produce_nav p{
        line-height: 26px;
    }

    .introduce{
        display: block;
        margin: 20px 0;
    }
    .introduce_title{
        line-height: 24px;
        padding: 10px 0;
    }

    .introduce_p{
        font-size: 13px;
        line-height: 26px;
    }

    .introduce_tip{
        line-height: 26px;
        margin-bottom: 10px;
        pading:5px 12px
    }

    .introduce_left{
        margin: 0;
        width: 100%;
    }

    .introduce_left_list_imgs{
        width: calc(100% - 100px);
        height: auto;
        max-height: 60px;
    }

    .introduce_left_list_imgs img{
        width: 22%;
        height: auto;
        max-height: 60px;
    }

}