.clearfix::before, .clearfix::after {
        content:"";
        display:table
    }
    .clearfix::after { clear:both }
    a,p{
    color: #008B8B;
    text-decoration:none;
    }

    * {
    font-family: 'Noto Sans JP', sans-serif;
    }

    .notoserif{
    font-family: 'Noto Serif JP', serif;
    }

    h1.nizumi_top_tit{
        color:#008B8B;
        font-weight:700;
        font-size:48px;
        text-align:center;
    }
    h1.nizumi_top_tit span{
        display:block;
        font-size:20px;
        margin-bottom:14px;
    }
    .nizumi_cnt_tit_02{
        color: #008B8B;
        font-size: 32px;
        margin-bottom: 40px;
    }
    .nizumi_cnt_tit_02 span{
        color: #20B2AA;
        font-size: 20px;
        margin-left: 20px;
    }

    .nizumi_lst_menu_wp{
        color: #008B8B;
        line-height: 1.3;
    }
    .nizumi_lst_menu_wp .nizumi_lst_menu li.active{
        border-bottom: 2px solid #FFF;
    }
    .nizumi_lst_menu_wp .nizumi_cnt_dsc{
        background-color: #FFF;
        border-radius: 10px;
        border-top-left-radius: 0;
        display: none;
        padding: 20px 14px 10px;
    }
    .nizumi_lst_menu_wp .active{
        display: block;
    }
    .nizumi_lst_menu_wp .nizumi_lst_menu li{
        border-bottom: 2px solid #008B8B;
        border-radius: 10px 10px 0 0; 
        background-color: #FFF;
        cursor: pointer;
        display: inline-block;
        font-size: 20px;
        line-height:  2;
        padding: 0px 14px;
    }

    /* お知らせ用スタイル */
    .nizumi_lst_menu_wp.nizumi_news_block .nizumi_lst_menu li{
        background-color: #008B8B;
        color: #FFF;
        border-bottom-color: #FFF;
    }
    .nizumi_lst_menu_wp.nizumi_news_block .nizumi_lst_menu li.active{
        border-bottom-color: #008B8B;
    }
    .nizumi_lst_menu_wp.nizumi_news_block tbody{
        display: block;
    }
    .nizumi_lst_menu_wp.nizumi_news_block table{
        background-color: #008B8B;
        color: #FFF;
        font-size: 16px;
        line-height: 1;
        padding: 20px 14px 20px;
    }
    .nizumi_lst_menu_wp.nizumi_news_block table tr{
        border-bottom: 2px dashed #FFF;
        margin-bottom: 14px;
        padding-bottom: 10px;
        clear: both;
        display: block;
    }
    .nizumi_lst_menu_wp.nizumi_news_block table tr:last-child{
        margin-bottom: 0;
    }
    .nizumi_lst_menu_wp.nizumi_news_block table th{
        width: 86px;
        float: left;
        margin-left: 10px;
        text-align: left;
    }
    .nizumi_lst_menu_wp.nizumi_news_block table td{
        padding-left: 16px;
    }

    /* 研究リスト用スタイル */
    .nizumi_lst_menu_wp.nizumi_research_block .nizumi_lst_menu li{
        background-color: #20B2AA;
        color: #FFF;
        border-bottom-color: #FFF;
    }
    .nizumi_lst_menu_wp.nizumi_research_block .nizumi_lst_menu li.active{
        border-bottom-color: #20B2AA;
    }
    .nizumi_lst_menu_wp.nizumi_research_block .nizumi_cnt_dsc{
        background-color: #20B2AA;
        color: #FFF;
        font-size: 16px;
        line-height: 1.4;
        padding: 20px 14px 20px;
    }
    .nizumi_lst_menu_wp.nizumi_research_block .nizumi_cnt_dsc li{
        margin-bottom: 10px;
        padding-bottom: 10px;
        border-bottom: 1px dashed rgba(255,255,255,0.5);
    }
    .nizumi_lst_menu_wp.nizumi_research_block .nizumi_cnt_dsc li:last-child{
        margin-bottom: 0;
        border-bottom: none;
    }

    ul.nizumi_cnt_box{
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    ul.nizumi_cnt_box li{
        width: calc(25% - 30px);
        box-shadow: 4px 4px 4px rgba(0,0,0,0.2);
    }
    ul.nizumi_cnt_box li .nizumi_cnt_img{
        width: 100%;
        height: 20vw;
        overflow: hidden;
        position: relative;
    }
    ul.nizumi_cnt_box li .nizumi_tags{
        background-color: #20B2AA;
        color: #FFF;
        display: inline-block;
        line-height: 1.6;
        padding: 0 8px;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
    }
    ul.nizumi_cnt_box li .nizumi_cnt_img img{
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center;
        position: absolute;
        top: 0;
        left: 0;
    }
    ul.nizumi_cnt_box li .nizumi_cnt_dsc{
        padding: 20px 10px;
    }
    ul.nizumi_cnt_box li .nizumi_cnt_dsc .nizumi_lst_tit{
        font-size: 20px;
        line-height: 1.3;
        text-align: center;
    }
    ul.nizumi_cnt_box .nizumi_cnt_dsc .nizumi_lst_tit span{
        display: block;
        font-size: 16px;
    }
    ul.nizumi_cnt_box .nizumi_cnt_dsc .nizumi_lst_sup{
        font-size: 16px;
        margin-top: 10px;
        text-align: center;
        line-height: 1.3;
    }
    ul.nizumi_cnt_box li:nth-child(n+5){
        margin-top: 20px;
    }
    ul.nizumi_cnt_box .nizumi_cnt_img .prof{
        background-color: #20B2AA;
    }
    ul.nizumi_cnt_box .nizumi_cnt_img .pd,
    ul.nizumi_cnt_box .nizumi_cnt_img .rf{
        background-color: #48D1CC;
    }
    ul.nizumi_cnt_box .nizumi_cnt_img .phd{
        background-color: #7FFFD4;
    }
    ul.nizumi_cnt_box .nizumi_cnt_img .mas{
        background-color: #AFEEEE;
    }
    ul.nizumi_cnt_box .nizumi_cnt_img .bac,
    ul.nizumi_cnt_box .nizumi_cnt_img .rs{
        background-color: #B0E0E6;
    }

    .nizumi_top_block_01{
        width: 100%;
        height: 300px;
        background: linear-gradient(135deg, #F0FFFF 0%, #E0F6F6 100%);
        position: relative;
    }
    .nizumi_top_block_01 .cnt_scr{
        width: 100%;
        height: 200px;
        background: linear-gradient(to top,#FFF,rgba(255,255,255,0));
        position: absolute;
        bottom: 0;
        text-align: center;
    }
    .nizumi_top_block_01 .cnt_scr a{
        display: inline-block;
        width: 80px;
        height: 80px;
        margin-top: 60px;
    }
    .nizumi_top_block_01 .cnt_frm{
        position:absolute;
        top: 40%;
        left: 50%;
        transform: translate(-50%,-50%);
    }

    .nizumi_group_identifier {
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, #20B2AA 0%, #48D1CC 100%);
        position: absolute;
        top: 0;
        left: 0;
        z-index: 10;
    }

    .nizumi_top_block_02{
        width: 100%;
        box-sizing: border-box;
        padding: 60px 20px 0;
    }

    .nizumi_top_block_05{
        width: 100%;
        box-sizing: border-box;
        padding: 60px 40px;
        position: relative;
    }

    .nizumi_top_block_research{
        width: 100%;
        box-sizing: border-box;
        padding: 60px 40px;
        position: relative;
        margin-bottom: 0;
    }

    .nizumi_cnt_tit {
        text-align: center;
        margin-bottom: 40px;
    }

    /* 下部ナビゲーション */
    .nizumi_bottom_nav {
        background: linear-gradient(135deg, #F0FFFF 0%, #E0F6F6 100%);
        padding: 60px 20px;
        text-align: center;
    }

    .nizumi_nav_links_bottom {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        gap: 30px;
        justify-content: center;
    }

    .nizumi_nav_btn {
        display: block;
        border: 1px solid transparent;
        font-size: 24px;
        padding: 14px;
        transition: all 0.3s ease;
    }

    .nizumi_nav_btn:hover {
        border-color: #008B8B;
        transform: translateY(-2px);
    }

    .nizumi_nav_label {
        display: block;
        font-size: 14px;
        font-weight: 400;
        color: #008B8B;
        margin-top: 10px;
        text-align: center;
        transition: color 0.3s ease;
    }

    @media (max-width:1120px) {
        ul.nizumi_cnt_box li{
            width: calc(50% - 10px);
        }
        ul.nizumi_cnt_box li:nth-child(n+3){
            margin-top: 20px;
        }
        ul.nizumi_cnt_box li .nizumi_cnt_img{
            height: 40vw;
            min-height: 240px;
        }
    }

    @media (max-width: 768px) {
        h1.nizumi_top_tit{
            font-size: 36px;
        }
        h1.nizumi_top_tit span{
            font-size: 16px;
        }
        .nizumi_cnt_tit_02{
            font-size: 28px;
        }
        .nizumi_cnt_tit_02 span{
            font-size: 18px;
            margin-left: 15px;
        }
        .nizumi_top_block_02, .nizumi_top_block_05, .nizumi_top_block_research {
            padding: 40px 15px;
        }
        .nizumi_bottom_nav {
            padding: 40px 15px;
        }
        .nizumi_nav_links_bottom {
            flex-direction: column;
            gap: 20px;
        }
        .nizumi_nav_btn {
            padding: 20px;
            min-height: 60px;
        }
        .nizumi_nav_label {
            font-size: 18px;
        }
        ul.nizumi_cnt_box li{
            width: calc(50% - 10px);
        }
        ul.nizumi_cnt_box li:nth-child(n+3){
            margin-top: 20px;
        }
        .nizumi_lst_menu_wp.nizumi_news_block table{
            font-size: 14px;
        }
        .nizumi_lst_menu_wp.nizumi_news_block table th{
            width: 70px;
            font-size: 12px;
        }
        .nizumi_lst_menu_wp .nizumi_lst_menu li{
            font-size: 16px;
            padding: 0px 10px;
        }
    }

    @media (max-width: 480px) {
        h1.nizumi_top_tit{
            font-size: 28px;
        }
        h1.nizumi_top_tit span{
            font-size: 14px;
        }
        .nizumi_cnt_tit_02{
            font-size: 24px;
        }
        .nizumi_cnt_tit_02 span{
            font-size: 16px;
            margin-left: 10px;
        }
        .nizumi_top_block_02, .nizumi_top_block_05, .nizumi_top_block_research {
            padding: 30px 10px;
        }
        .nizumi_bottom_nav {
            padding: 30px 10px;
        }
        ul.nizumi_cnt_box li{
            width: 100%;
            margin-right: 0;
        }
        ul.nizumi_cnt_box li:nth-child(n+2){
            margin-top: 20px;
        }
        ul.nizumi_cnt_box li .nizumi_cnt_img{
            height: 200px;
        }
        .nizumi_lst_menu_wp .nizumi_lst_menu li{
            font-size: 14px;
            padding: 0px 8px;
            margin-right: 5px;
        }
        .nizumi_lst_menu_wp.nizumi_news_block table{
            font-size: 12px;
            padding: 15px 10px;
        }
        .nizumi_lst_menu_wp.nizumi_news_block table th{
            width: 60px;
            font-size: 11px;
            margin-left: 5px;
        }
    }