.about_jianjie_box {
    width: 100%;
    background: #F4F7F9;
    padding: calc(30px + 5rem) 0;

    .about_jianjie {
        max-width: 1400px;
        width: 85%;
        margin: auto;

        .jianjie_top {
            margin-top: calc(14px + 2rem);
            display: flex;
            justify-content: space-between;
            align-items: center;

            .jianjie_pic {
                width: 49%;
                height: calc(51px + 20rem);

                img {
                    width: 100%;
                    height: 100%;
                    object-fit: cover;
                }
            }

            .jianjie_num {
                width: 49.0714%;
                display: flex;
                justify-content: space-between;
                flex-wrap: wrap;
                row-gap: calc(3px + 1rem);

                .jianjie_num_item {
                    width: 48.0349%;
                    height: calc(14px + 10rem);
                    background: #FFFFFF;
                    padding: 0 calc(2px + 2rem);
                    display: flex;
                    flex-direction: column;
                    justify-content: center;
                    align-items: center;
                    gap: calc(1px + 1rem);

                    .p1 {
                        font-family: Microsoft YaHei;
                        font-weight: bold;
                        font-size: calc(6px + 0.5rem);
                        color: #0072C1;
                        line-height: 1;

                        span {
                            font-size: calc(6px + 1.5rem);
                        }
                    }

                    .p2 {

                        font-family: Microsoft YaHei;
                        font-weight: 400;
                        font-size: calc(6px + 0.5rem);
                        color: #323337;
                        line-height: calc(10px + 1rem);
                        text-align: center;
                    }
                }
            }
        }

        .jianjie_text {
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            gap: calc(5px + 0.25rem);
            margin-top: calc(14px + 2rem);

            p {
                font-family: Microsoft YaHei;
                font-weight: 300;
                font-size: calc(8px + 0.5rem);
                color: #000000;
                line-height: calc(2px + 1.5rem);
            }
        }
    }
}


.culture_box {
    width: 100%;
    background: url(../images/culture_bg.jpg) no-repeat;
    background-size: cover;
    padding-top: calc(25px + 5rem);
    padding-bottom: calc(9px + 4rem);

    .culture {
        max-width: 1400px;
        width: 85%;
        margin: auto;

        .culture_card {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            row-gap: calc(3px + 1.5rem);
            margin-top: calc(15px + 2rem);

            .culture_item {
                transition: .5s;
                width: 48.8571%;
                height: calc(56px + 5rem);
                border-radius: calc(0px + 0.2rem);
                border: 1px solid #F0F4F750;
                display: flex;
                justify-content: flex-start;
                align-items: center;
                gap: calc(6px + 1rem);
                padding: 0 calc(16px + 2rem);

                .culture_icon {
                    width: calc(4px + 5rem);
                    height: calc(4px + 5rem);
                    background: url(../images/icon_bg.png) no-repeat;
                    background-size: cover;
                    display: flex;
                    justify-content: center;
                    align-items: center;

                    img {
                        width: calc(6px + 1.5rem);
                    }
                }

                .culture_text {
                    .p1 {
                        font-family: Microsoft YaHei;
                        font-weight: bold;
                        font-size: calc(2px + 1rem);
                        color: #FFFFFF;
                        line-height: 1;
                    }

                    .p2 {
                        font-family: Microsoft YaHei;
                        font-weight: 400;
                        font-size: calc(8px + 0.5rem);
                        color: #FFFFFF;
                        line-height: 1;
                        margin-top: calc(8px + 0.5rem);
                    }
                }
            }

            .culture_item:nth-of-type(4) {
                img {
                    width: calc(1px + 2rem);
                }
            }
        }
    }
}

.culture_item:hover {
    background-color: #0072C1;

}

.jiyu_box {
    width: 100%;
    overflow: hidden;
    padding-top: calc(46px + 5rem);
    padding-bottom: calc(24px + 5rem);
    background: url(../images/jiyu_bg.jpg) no-repeat;
    background-size: contain;

    .jiyu {
        max-width: 1660px;
        width: 92.5%;
        float: right;
        display: flex;
        justify-content: space-between;
        align-items: center;

        .juyu_left {
            width: 42.1686%;

            .jiju_con {
                margin-top: calc(4px + 5rem);
                display: flex;
                flex-direction: column;
                justify-content: flex-start;
                gap: calc(8px + 0.25rem);

                p {

                    font-family: Microsoft YaHei;

                    font-size: calc(6px + 0.5rem);
                    color: #333333;
                    line-height: calc(2px + 1.5rem);

                    b {
                        font-weight: bold;
                    }
                }
            }
        }

        .juyu_right {
            width: 53.4939%;

            .juyu_pic {
                width: 100%;
                height: calc(140px + 20rem);

                img {
                    width: 100%;
                    height: 100%;
                    object-fit: cover;
                }
            }

            .jiyu_text {
                width: 100%;
                height: calc(80px + 5rem);
                background: #0072C1;
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 0 calc(18px + 4rem);

                .juyu_text_left {
                    border-left: calc(3px + 0.25rem) #F0F4F730 solid;
                    padding-left: calc(8px + 0.5rem);

                    .p1 {
                        font-family: Microsoft YaHei;
                        font-weight: 400;
                        font-size: calc(10px + 0.5rem);
                        color: #F0F4F7;
                        line-height: 1;
                    }

                    .p2 {
                        font-family: Microsoft YaHei;
                        font-weight: 400;
                        font-size: calc(10px + 1.5rem);
                        color: #F0F4F7;
                        line-height: 1;
                        margin-top: calc(8px + 0.5rem);
                    }
                }

                .jiyu_icon {
                    width: calc(6px + 4rem);

                    img {
                        width: 100%;
                    }

                }
            }
        }
    }
}


.certificate_box {
    width: 100%;
    padding: calc(30px + 5rem) 0;
    overflow: hidden;

    .certificate_title {
        max-width: 1400px;
        width: 85%;
        margin: auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .certificate {
        max-width: 1660px;
        width: 92.5%;
        float: right;

        .cer_swiper {
            width: 100%;
            margin-top: calc(12px + 2rem);

            .swiper {
                width: 100%;

                .swiper-slide {
                    width: 21.0843%;

                    .cer_border {
                        width: 100%;
                        height: calc(2px + 20rem);
                        background: #FFFFFF;
                        border: 1px solid #DCDCDC;
                        border-right: none;
                        display: flex;
                        flex-direction: column;
                        justify-content: center;
                        align-items: center;

                        .cer_pic {
                            width: calc(50px + 10rem);
                            height: calc(83px + 5rem);

                            img {
                                width: 100%;
                                height: 100%;
                                object-fit: cover;
                            }
                        }

                        .p1 {

                            font-family: Microsoft YaHei;
                            font-weight: 400;
                            font-size: calc(10px + 0.5rem);
                            color: #333333;
                            line-height: 1;
                            margin-top: calc(4px + 3rem);
                        }

                        .p2 {

                            font-family: Century Gothic;
                            font-weight: 400;
                            font-size: calc(6px + 0.5rem);
                            color: #0072C1;
                            line-height: 1;
                            margin-top: calc(4px + 0.5rem);
                        }
                    }
                }
            }
        }
    }
}


.course_box {
    width: 100%;
    padding: calc(30px + 5rem) 0;
    background: url(../images/yx.png) no-repeat;
    background-size: contain;
    background-position-y: calc(34px + 10rem);


    .course {
        max-width: 1400px;
        width: 85%;
        margin: auto;

        .course_text {
            padding: calc(18px + 3rem) calc(-2px + 2rem);
            width: 85%;
            background: #FFFFFF;
            box-shadow: 0px 0px 18px 0px rgba(154, 162, 168, 0.2);
            margin: auto;

            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            gap: calc(8px + 2rem);
            display: none;
            margin-top: calc(13px + 4rem);
            margin-bottom: calc(3px + 4rem);
            position: relative;

            .text_line {
                width: 1px;
                height: calc(100% + calc(10px + 6rem));

                background-color: #80808090;
                position: absolute;
                left: calc(17px + 1rem);
                bottom: calc(-10px - 3rem);
                transition: .5s;
            }

            img {
                width: calc(51px + 5rem);
                position: absolute;
                right: calc(-6px - 0.5rem);
                top: calc((-15px - 3rem));
            }

            p {

                font-family: Microsoft YaHei;
                font-weight: 400;
                font-size: calc(8px + 0.5rem);
                color: #4A4A4A;
                line-height: calc(4px + 1rem);
                left: calc(50px + 10rem);
                opacity: 0;
                animation: move .5s linear;
                animation-fill-mode: forwards;
                display: flex;
                justify-content: flex-start;
                align-items: center;
                gap: calc(1px + 1rem);
            }

            p:nth-of-type(2) {
                animation-delay: .3s;
            }

            p:nth-of-type(3) {
                animation-delay: .6s;
            }

            p:nth-of-type(4) {
                animation-delay: .9s;
            }

            p:nth-of-type(5) {
                animation-delay: 1.2s;
            }

            p:nth-of-type(6) {
                animation-delay: 1.5s;
            }

            p:nth-of-type(7) {
                animation-delay: 1.8s;
            }

            p:nth-of-type(8) {
                animation-delay: 2.1s;
            }


        }

        .course_text:nth-of-type(2) {
            display: flex;
        }

        .course_bottom_line_box {
            width: 100%;
            position: relative;

            .line1 {
                width: 100%;
                height: calc(0px + 0.1rem);
                background-color: #0072C1;
                position: absolute;
                bottom: calc(7px + 4rem);

            }

        }

        .course_bottom_line {

            width: 100%;



            .course_line {
                width: 85%;
                overflow: hidden;
                margin: auto;
                /* height: calc(10px + 40rem); */
                position: relative;
                top: calc(-7px - 0.5rem);

                display: flex;
                flex-direction: column;
                justify-content: flex-end;

            }

            .course_line_box {

                width: 100%;
                display: flex;
                justify-content: flex-start;
                align-items: flex-start;
                gap: calc(0px + 5rem);
                transition: .5s;


            }

            .course_line_dot_box {

                position: relative;
                display: flex;
                flex-direction: column;
                justify-content: flex-start;
                align-items: center;
                gap: calc(1px + 1rem);
                cursor: pointer;



                .course_line_dot_circle {
                    width: calc(6px + 1.5rem);
                    height: calc(6px + 1.5rem);
                    background: #FFFFFF;
                    border-radius: 50%;
                    border: calc(0px + 0.1rem) solid transparent;
                    background-color: transparent;
                    display: flex;
                    justify-content: center;
                    align-items: center;

                    .course_line_dot {
                        width: calc(1px + 0.25rem);
                        height: calc(1px + 0.25rem);
                        background: #0072C1;
                        border-radius: 50%;
                        border: calc(0px + 0.1rem) solid #0072C1;

                    }
                }


                p {
                    font-family: Microsoft YaHei;
                    font-weight: 400;
                    font-size: calc(6px + 0.5rem);
                    color: #B5B5B5;
                    line-height: 1;
                }
            }

            .course_line_dot_active {

                .course_line_dot_circle {
                    border: calc(0px + 0.1rem) solid #0072C1;
                    background-color: #ffffff;
                }

                .p1 {
                    font-family: Microsoft YaHei;
                    font-weight: 400;
                    font-size: calc(2px + 1.5rem);
                    color: #0072C1;
                    line-height: 1;

                }


                .course_text {
                    padding: calc(0px + 5rem) calc(10px + 2rem);
                    height: auto;

                    p {
                        left: calc(50px + 10rem);
                        opacity: 0;
                        animation: move .5s linear;
                        animation-fill-mode: forwards;
                    }

                    p:nth-of-type(2) {
                        animation-delay: .3s;
                    }

                    p:nth-of-type(3) {
                        animation-delay: .6s;
                    }

                    p:nth-of-type(4) {
                        animation-delay: .9s;
                    }

                    p:nth-of-type(5) {
                        animation-delay: 1.2s;
                    }

                    p:nth-of-type(6) {
                        animation-delay: 1.5s;
                    }

                    p:nth-of-type(7) {
                        animation-delay: 1.8s;
                    }

                    p:nth-of-type(8) {
                        animation-delay: 2.1s;
                    }


                }
            }
        }
    }
}

@keyframes move {
    from {
        position: relative;
        left: calc(50px + 10rem);
        opacity: 0;

    }

    to {
        position: relative;
        left: 0;
        opacity: 1;
    }
}

.line2 {
    width: calc(4px + 1rem);
    height: 1px;
    background: #808080;
    opacity: 0.8;
}

.course_title {
    display: flex;
    justify-content: space-between;
    align-items: center;

    .course_icon {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: calc(5px + 1rem);

        img {
            width: calc(10px + 2rem);
            cursor: pointer;
            display: none;
        }

        .prev {
            display: block;
        }

        .next_act {
            display: block;
        }
    }
}


.cer_icon {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: calc(5px + 1rem);

    img {
        width: calc(10px + 2rem);
        display: none;
        cursor: pointer;
    }

    .prev {
        display: block;
    }

    .next_act {
        display: block;
    }



}

#certificate_box1{
    display: block;
}
#certificate_box2{
    display: none;
}
@media (max-width: 1100px) {
    .about_jianjie_box {
        .about_jianjie {
            .jianjie_top {
                display: flex;
                flex-direction: column;
                justify-content: flex-start;
                gap: calc(10px + 1rem);

                .jianjie_pic {
                    width: 100%;
                    height: calc(51px + 40rem);
                }
            }
        }
    }


    .about_jianjie_box {
        .about_jianjie {
            .jianjie_top {
                .jianjie_num {
                    width: 100%;

                    .jianjie_num_item {
                        height: calc(14px + 33rem);

                        .p1 {
                            span {
                                font-size: calc(14px + 1rem);
                            }

                        }

                        .p2 {
                            font-size: calc(10px + 1rem);
                            line-height: 1.5;
                        }
                    }
                }
            }
        }
    }

    .about_jianjie_box {
        .about_jianjie {
            .jianjie_text {
                p {
                    font-size: calc(10px + 1rem);
                    line-height: 1.5;
                }
            }
        }
    }

    .culture_box {
        .culture {
            .culture_card {
                display: flex;
                flex-direction: column;
                justify-content: flex-start;
                gap: calc(10px + 1rem);

                .culture_item {
                    width: 100%;

                    .culture_icon {
                        width: calc(32px + 5rem);
                        height: calc(32px + 5rem);

                        img {
                            width: calc(11px + 1.5rem);
                        }
                    }

                    .culture_text {
                        .p1 {
                            font-size: calc(8px + 1rem);

                        }

                        .p2 {
                            font-size: calc(10px + 1rem);
                        }
                    }
                }
            }
        }

    }

    .course_box {
        .course {
            .course_bottom_line {
                .course_line_box {

                    gap: calc(18px + 5rem);

                }
            }
        }
    }

    .course_box {
        .course {
            .course_bottom_line {
                .course_line_dot_box {
                    .course_line_dot_circle {
                        width: calc(25px + 1.5rem);
                        height: calc(25px + 1.5rem);

                        .course_line_dot {
                            width: calc(5px + 0.25rem);
                            height: calc(5px + 0.25rem);

                        }


                    }

                    p {
                        font-size: calc(10px + 1rem);
                    }
                }
            }
        }
    }

    .course_box {
        .course {
            .course_bottom_line {
                .course_line_dot_active {
                    .p1 {
                        font-size: calc(16px + 1rem);
                    }
                }
            }
        }
    }

    .course_box {
        .course {
            .course_bottom_line {
                .course_line {

                    top: calc(20px - 0.5rem);

                }
            }
        }
    }

    .course_box {
        .course {
            .course_text {
                padding: calc(18px + 3rem) calc(15px + 2rem);

                p {
                    font-size: calc(10px + 1rem);
                    line-height: 1.5;

                }

                .text_line {

                    bottom: calc(-27px - 3rem);

                }
            }
        }
    }

    .course_title {
        .course_icon {
            display: none;
        }
    }

    .jiyu_box {
        .jiyu {
            width: 85%;
            margin: auto;
            float: none;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            gap: calc(10px + 1rem);

            .juyu_left {
                width: 100%;

                .jiju_con {
                    p {
                        font-size: calc(10px + 1rem);
                        line-height: 1.5;
                    }
                }
            }

            .juyu_right {
                width: 100%;

                .jiyu_text {
                    .jiyu_icon {
                        width: calc(6px + 10rem);
                    }

                    .juyu_text_left {
                        .p1 {
                            font-size: calc(12px + 1rem);
                        }

                        .p2 {
                            font-size: calc(14px + 1rem);
                        }
                    }
                }
            }
        }
    }

 
    .cer_swiper {
        .swiper1{
            width: 100%;
            .swiper-slide{
                width: 50%;
                .cer_border{
                    width: 100%;
                    height: calc(100px + 25rem);
                    background: #FFFFFF;
                    border: 1px solid #DCDCDC;
                    border-right: none;
                    display: flex;
                    flex-direction: column;
                    justify-content: center;
                    align-items: center;
                    .cer_pic{
                        width: 85%;
                    }
                    .p1{
                        font-size: calc(10px + 1rem);
                    }
                    .p2{
                        font-size: calc(10px + 1rem);
                    }
                }
            }
        }
    }

    #certificate_box1{
        display: none;
    }
    #certificate_box2{
        display: block;
        .cer_icon{
            display: none;
        }
    }
}