body, html {
    background-color: #eff4f9
}

.head {
    width: 100%;
    height: 1000px;
    overflow: hidden;
    background-image: url("/activity/content/trial/images/social-work/toutu.png");
    background-size: 1920px 1000px;
    background-position: center;
    background-repeat: no-repeat
}

.head-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center
}

.head-title {
    position: absolute;
    top: 30px;
    width: 1098px;
    height: 365px
}

.head-video {
    position: absolute;
    top: 276px
}

.head-foot {
    position: absolute;
    bottom: 28px;
    width: 1500px;
    height: 163px
}

.plan {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    width: 100%
}

.bgimg {
    background: url("/activity/content/trial/images/social-work/xuexifangan.png") center top no-repeat;
}

.plan .bg {
    width: 100%
}

    .plan > .img {
        position: absolute;
        top: 300px;
        width: 1220px
    }

    .plan .menu {
        position: absolute;
        top: 373px;
        margin-right: 1370px;
        width: 150px;
        background-color: #fff
    }

        .plan .menu > p {
            cursor: pointer;
            text-align: center;
            line-height: 50px;
            width: 100%;
            font-size: 18px;
            height: 50px;
            border-bottom: 1px solid #f5f5f5
        }

        .plan .menu .active {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            background-image: linear-gradient(to bottom, #fd894d, #e84f1d)
        }

    .plan .btn-group {
        display: flex;
        align-items: center;
        justify-content: space-around;
        position: absolute;
        bottom: 92px;
        height: 40px;
        width: 1219px
    }

        .plan .btn-group .btn {
            cursor: pointer;
            width: 200px;
            height: 40px;
            border-radius: 20px
        }

.advantage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    width: 100%
}

    .advantage .advantage-bg {
        width: 1920px
    }

    .advantage .advantage-menu {
        display: flex;
        flex-wrap: wrap;
        width: 1360px;
        position: absolute;
        bottom: 120px
    }

        .advantage .advantage-menu .menu-item {
            margin-bottom: 30px;
            cursor: pointer;
            object-fit: cover;
            font-size: 0;
            display: block
        }

.teachers {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    width: 100%
}

    .teachers .teachers-bg {
        width: 1920px
    }

    .teachers .teachers-content {
        position: absolute;
        top: 258px;
        width: 1320px;
        height: 480px
    }

    .teachers .teachers_active {
        position: absolute;
        top: 53px;
        left: 60px
    }

    .teachers .teachers-container {
        position: absolute;
        top: 203px;
        left: 513px;
        width: 700px;
        height: 251px;
        display: flex;
        align-items: center;
        overflow: hidden
    }

        .teachers .teachers-container .teachers-menu {
            position: absolute;
            width: 2100px;
            display: flex;
            align-items: end
        }

        .teachers .teachers-container .teachers-item {
            position: relative;
            text-align: center;
            cursor: pointer;
            width: 175px;
            height: 150px
        }

            .teachers .teachers-container .teachers-item::after {
                content: " ";
                background-color: rgba(255,255,255,0.5);
                width: 100%;
                height: 100%;
                position: absolute;
                top: 0;
                left: 0
            }

            .teachers .teachers-container .teachers-item .item-img {
                height: 100%
            }

            .teachers .teachers-container .teachers-item .item-name {
                color: #666;
                width: 175px;
                text-align: center;
                font-size: 22px;
                position: absolute;
                bottom: -40px
            }

        .teachers .teachers-container .teachers-item_active {
            height: 175px
        }

            .teachers .teachers-container .teachers-item_active .item-name {
                color: #0f4888
            }

            .teachers .teachers-container .teachers-item_active::after {
                background-color: rgba(255,255,255,0)
            }

    .teachers .teachers-name {
        width: 300px;
        text-align: center;
        position: absolute;
        top: 59px;
        left: 425px;
        font-size: 30px;
        color: #333
    }

    .teachers .teachers-brief {
        position: absolute;
        top: 126px;
        left: 514px;
        width: 700px;
        font-size: 16px;
        font-family: SourceHanSansCN;
        font-weight: 400;
        color: #666;
        line-height: 27px
    }

.questionBank, .bottom, .guide, .selfStudy {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    width: 100%
}

    .questionBank .questionBank-bg, .bottom .questionBank-bg, .guide .questionBank-bg, .selfStudy .questionBank-bg, .questionBank .bottom-bg, .bottom .bottom-bg, .guide .bottom-bg, .selfStudy .bottom-bg, .questionBank .guide-bg, .bottom .guide-bg, .guide .guide-bg, .selfStudy .guide-bg, .questionBank .selfStudy-bg, .bottom .selfStudy-bg, .guide .selfStudy-bg, .selfStudy .selfStudy-bg, .questionBank .specialized-bg, .bottom .specialized-bg, .guide .specialized-bg, .selfStudy .specialized-bg {
        width: 1920px
    }

.bottom-menu {
    display: flex;
    justify-content: space-between;
    width: 1325px;
    position: absolute
}

    .bottom-menu .menu-item {
        cursor: pointer
    }