@media only screen and (max-width: 768px) {
    .top_header {
        height: 10rem;
        width: 100%;
        background-size: cover;
    }
    .container {
        width: 100%;
        margin: 2rem auto;
    }
    .ml_box li {
        float: left;
        width: 100%;
        height: auto;
        padding: 1rem;
        margin: 0;
        background: #F5F5F5;
        border-radius: 100px;
        display: flex;
        align-items: center;
        margin-top: 1rem;
    }
    .work_box {
        margin-top: 2rem;
        width: 100%;
        overflow: hidden;
    }
    .gk_box li {
        float: left;
        width: 50%;
        height: auto;
        margin: 0;
        position: relative;
        overflow: hidden;
    }
    .gk_box li .gk_title {
        font-size: 1.6rem;
        height: 8rem;
        text-align: center;
    }
    .work_list {
        padding: 0;
    }
    .work_list li {
        float: left;
        width: 50%;
        line-height: normal;
        text-align: center;
        font-size: 1.6rem;
        cursor: pointer;
        margin: 1rem 0;
    }
    .gf_list li {
        float: left;
        width: 100%;
        line-height: 2rem;
        margin-right: 0;
        padding: 1rem 0;
        text-align: center;
        font-size: 1.6rem;
        cursor: pointer;
    }
    .title_text h1 {
        line-height: 3rem;
        font-size: 1.8rem;
        font-weight: 100;
        padding: 0 10px;
    }
    .title_text img {
        width: 2rem;
        height: 2rem;
    }
    .work_column {
        float: left;
        width: 100%;
        height: auto;
        padding: 0 1rem;
        border: 1px solid #4ec0ff;
        border-radius: 5px;
    }
    table td {
        white-space: unset;
        word-wrap: unset;
        width: auto;
        font-size: 1.6rem;
    }
    .bt_time {
        color: #999999;
        width: 6rem;
    }
    .gk_box li .gk_list {
        width: 100%;
        height: 8rem;
        background-color: #4ec0ff;
        position: absolute;
        left: 0;
        top: -200%;
        z-index: 9;
    }
    .gk_box li .gk_list ul li {
        float: none;
        height: 2rem;
        line-height: 2rem;
        margin: 4px 0 0 15px;
        width: auto;
        font-size: 1.3rem;
    }
    .gk_box li .gk_list h3{
        margin: 0.5rem 0;
    }
}