.course_desc {
    margin-top: 100px;
    margin-bottom: 100px;
}

.course_desc_left {
    width: 540px;
    padding-top: 25px;
}

.course_desc_item {
    width: 100%;
}

.course_desc_item+.course_desc_item {
    margin-top: 32px;
}

.course_desc_item>h3 {
    width: 48px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    font-family: YouSheBiaoTiHei;
    font-size: 24px;
    color: #ffffff;
    background: url('../images/course_desc_item_number.png') no-repeat center center;
    background-size: 100% 100%;
}

.course_desc_item>span {
    display: block;
    font-weight: 700;
    font-size: 24px;
    line-height: 24px;
    color: #333333;
    margin-top: 20px;
}

.course_desc_item>p {
    display: block;
    font-size: 16px;
    line-height: 16px;
    color: #666666;
    margin-top: 16px;
    line-height: 25px;
}

.course_desc_right {
    width: 610px;
    height: 510px;
}

.course_desc_right>img {
    width: 100%;
    height: 100%;
    display: block;
}



.course_group_title {
    display: block;
    text-align: center;
    font-weight: 100;
    font-size: 44px;
    color: #333333;
}

.course_group {
    padding-top: 80px;
    padding-bottom: 80px;
    background-color: #f5f6fa;
}


.infant_group {
    width: 100%;
}

.infant_group>div {
    width: 100%;
    margin-top: 60px;
}

.infant_group_left {
    width: 480px;
    height: 500px;
    background-color: #ffffff;
}

.infant_group_left>span {
    display: block;
    width: 100%;
    height: 80px;
    line-height: 80px;
    padding-left: 40px;
    font-size: 24px;
    font-weight: 700;
    color: #f5f6fa;
    background: url('../images/infant_group_left.png') no-repeat center top;
    background-size: 100% 100%;
}

.infant_group_left>img {
    width: 480px;
    height: 420px;
    display: block;
}

.infant_group_right {
    width: 680px;
    height: 500px;
    background-color: #ffffff;
}

.infant_group_right>img {
    width: 100%;
    height: 100%;
    display: block;
}

.primary_school_group {
    margin-top: 80px;
}

.primary_school_group>.course_group_title {
    margin-bottom: 60px;
}

.primary_school_item {
    width: 100%;
}

.primary_school_item_text {
    width: 400px;
    height: 400px;
    background-color: #ffffff;
    padding: 90px 0px 0px 40px;
    position: relative;
}

.primary_school_item_text>p {
    font-size: 18px;
    line-height: 38px;
    color: #666666;
}

.primary_school_item_text>span {
    display: block;
    width: 154px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    position: absolute;
    top: 0px;
    left: 0px;
    background: url('../images/primary_school_item_text.png') no-repeat left top;
    background-size: 100% 100%;
}

.primary_school_item_img {
    width: 800px;
    height: 400px;
    background-color: #ffffff;
}

.primary_school_item+.primary_school_item {
    margin-top: 56px;
}

.junior_high_group .primary_school_item_text {
    padding-left: 20px;
    padding-right: 20px;

}

.junior_high_group .primary_school_item_text img {
    display: block;
    width: 100%;
    margin-top: 10px;
}

.junior_high_group .primary_school_item+.primary_school_item .primary_school_item_text {
    padding-top: 70px;
}

.high_school_group_item {
    width: 100%;
    margin-top: 40px;
}

.high_school_group_item>img {
    width: 580px;
    height: 400px;
    background-color: #ffffff;
    display: block;
}

@media (max-width:768px) {
    .course_desc_left {
        width: 100%;
        padding-top: 20px;
    }

    .course_desc {
        margin-top: 0px;
        margin-bottom: 30px;
    }

    .course_desc_item>span {
        font-size: 18px;
    }

    .course_desc_item>p {
        font-size: 14px;
    }

    .course_desc_right {
        width: 100%;
        height: auto;
        margin-top: 30px;
    }

    .course_group {
        padding-top: 30px;
        padding-bottom: 30px;
    }

    .primary_school_item+.primary_school_item,
    .primary_school_group,
    .infant_group>div {
        margin-top: 30px;
    }

    .high_school_group_item>img,
    .infant_group_right,
    .infant_group_left>img,
    .primary_school_item_text,
    .primary_school_item_img,
    .infant_group_left {
        width: 100%;
        height: auto;
    }

    .course_group_title {
        font-size: 28px;
    }

    .infant_group_right {
        margin-top: 20px;
    }

    .infant_group_left>span {
        padding: 0px 4%;
        font-size: 18px;
        line-height: 50px;
        height: 50px;
    }

    .primary_school_group>.course_group_title {
        margin-bottom: 30px;
    }

    .primary_school_item_text>span {
        height: 40px;
        line-height: 40px;
        padding: 0px 4%;
        font-size: 18px;
        width: 120px;

    }

    .primary_school_item_text {
        padding: 50px 4% 4% !important;

    }

    .primary_school_item_text>p {
        font-size: 16px;
        line-height: 30px;
    }

    .primary_school_item_img {
        padding: 0px 4%;
    }

    .primary_school_item {
        padding-bottom: 20px;
        background: #fff;
    }

    .high_school_group_item {
        margin-top: 20px;
    }

    .high_school_group_item img:nth-child(2) {
        margin-top: 20px;
    }

}