<style>
        body {
            margin: 0;
            padding: 0;
            background-color: #fff;
        }


        



        /*共通CSSここから*/

        a[target="_blank"],
        a {
            text-decoration: none;
            color: #0033cc;
        }
        h1 {
            border-bottom: solid 3px #202f41;
            position: relative;
        }
        h1:after {
            position: absolute;
            content: '';
            display: block;
            border-bottom: solid 3px #a9ceff;
            width: 20%;
        }
        h2 {
          text-align: center;
          position: relative;
          display: inline-block;
          margin-bottom: 1em;
        }
        h2:before {
          content: '';
          position: absolute;
          bottom: -15px;
          display: inline-block;
          width: 60px;
          height: 2px;
          left: 50%;
          -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
          background-color: black;
          border-radius: 2px;
        }
        h3 {
            border-bottom: solid 1px #202f41;
            position: relative;
        }
        .bold {
            font-weight: bold;
            color: #202f41;
        }
        /*h3のCSS*/
        .day {
            font-size: 12px;
            text-align: right;
        }

        /*お知らせ*/
        .news_box {
            background-color: #e1e7ef;
        }

        .news_list {
            background-color: white;
        }

        .news_list {
            list-style: none outside;
            margin: 0;
            padding: 0;
        }

        .news_list .news_item:first-child a,
        .news_list .news_item:second-child a {
            border-bottom: 1px solid #CCC;
        }

        .news_list .news_item:last-child a {
            border-bottom: none;
        }

        .news_list .news_item .news_date {
            margin: 0;
            min-width: 100px;
            color: #999;
        }

        .news_list .news_item .news_title {
            margin: 0;
            width: 100%;
        }

        .news_list .news_item a:hover .news_title {
            color: black;
        }

        .news_list ul {
            overflow: hidden;
        }

        .news_item p {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        /*共通CSSここまで*/




        /*PC向けのスタイルここから*/
        @media screen and (min-width: 769px) {

            main {
                max-width: 1100px;
                margin: 0 auto;
            }
            h1 {
                font-size: 2rem;
            }
            h1,
            h1:after {
                padding-bottom: 10px;
                margin-bottom: auto;
            }
            h2 {
                text-align: center;
                display: block;
                margin: 30px 0 43px 0;
            }
            h2:before {
                bottom: -15px;
            }

        /*パンくずCSSここから*/
        .breadcrumb {
          margin: 0;
          padding: 10px 0;
          list-style: none;
        }

        .breadcrumb li {
          display: inline;
          list-style: none;
          font-weight: bold;
        }

        .breadcrumb li:after {
          content: '>';
          padding: 0 0.2em;
          color: #555;
        }

        .breadcrumb li:last-child:after {
          content: '';
        }

        .breadcrumb li a {
          text-decoration: none;
          color: black;
          margin: 3px;
        }

        .breadcrumb li a:hover {
          text-decoration: underline;
        }
        /*パンくずCSSここまで*/
            /*ボタンCSSここから*/
            .btn_content {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .btn_content a {
                background: #202f41;
                position: relative;
                display: flex;
                justify-content: space-around;
                align-items: center;
                margin: 0 auto;
                max-width: 240px;
                padding: 10px 25px;
                color: black;
                transition: 0.3s ease-in-out;
                font-weight: 500;
                z-index: 0;
            }

            .btn_content,
            .btn_content a {
                text-decoration: none !important;
                text-align: center;
                padding: 15px 150px;
            }

            .btn_content a {
                margin: 0 0 20px 0;
                color: white;
            }

            .btn_content a:before {
                content: "";
                position: absolute;
                top: 0;
                bottom: 0;
                width: 0;
                display: block;
                background: #71a3de;
                transition: .3s;
                left: 0;
            }

            .btn_content a:hover {
                color: white;
            }

            .btn_content a:hover:before {
                width: 100%;
                z-index: -1;
            }
            /*ボタンCSSここまで*/
            /*お知らせCSSここから*/
            .news {
                padding: 5px 0 0 0;
            }

            .news_list .news_item a {
                display: flex;
                flex-wrap: wrap;
                flex-wrap: nowrap;
                text-decoration: none;
                color: #333;
                border-bottom: 1px solid #CCC;
                padding: 20px 20px;
                margin: 0 10px;
            }
            .news_list .news_item .news_date {
                padding: 0 20px 0 0;
            }
            .news_item img {
                width: 110px;
                margin-right: 10px;
            }
            .news_item a {
                align-items: center;
            }
            .news_box_sp {
                display: none;
            }
            /*お知らせCSSここまで*/
        /*外部リンクのCSSここから*/
        a[target="_blank"][rel="nofollow"] {
            padding-right: 15px;
            background: url(../images/link.png) right center/13px auto no-repeat;
        }
        /*外部リンクのCSSここまで*/
        }


        /*PC向けのスタイルここまで*/



        /* SP向けのスタイル*/
        @media screen and (max-width: 768px) {
            main {
                margin: 0 25px;
            }
            h1 {
                margin: 10px 0 0 0;
            }
            h2 {
                font-size: 1rem;
                display: block;
                margin: 20px 0 30px 0;
            }
            h2:before {
                bottom: -8px;
            }
            #management_top img {
                width: 100%;
            }
            .tournament_box img {
                width: 100%;
            }
        /*パンくずCSSここから*/
        .breadcrumb {
          margin: 0;
          padding: 5px 0;
          list-style: none;
        }

        .breadcrumb li {
          display: inline;
          list-style: none;
          font-size: 0.6rem;
        }

        .breadcrumb li:after {
          content: '>';
          padding: 0 0.2em;
          color: #555;
        }

        .breadcrumb li:last-child:after {
          content: '';
        }

        .breadcrumb li a {
          text-decoration: none;
          color: black;
          margin: 3px;
        }

        .breadcrumb li a:hover {
          text-decoration: underline;
        }
        /*パンくずCSSここまで*/

            /*ボタンCSSここから*/
            .btn_content {
                display: flex;
                align-items: center;
                justify-content: center;
                padding-top: 13px;
            }
            .btn_content a {
                background: #202f41;
                position: relative;
                display: flex;
                justify-content: space-around;
                align-items: center;
                margin: 0 auto;
                max-width: 240px;
                padding: 10px 25px;
                color: #FFF;
                transition: 0.3s ease-in-out;
                font-weight: 500;
                z-index: 0;
            }

            .btn_content a {
                text-decoration: none !important;
                text-align: center;
                padding: 20px 60px;
            }
            /*ボタンCSSここまで*/


            /*お知らせCSSここから*/
            .news h2 {
                padding: 20px 0 0 30px;
            }
            .news_list {
                display: none;
            }
            .white_newsbox img {
                width: 150px;
                display: block;
                margin: auto;
            }
            .white_newsbox {
                display: block;
                margin: auto;
                text-align: left;
                width: 280px;
                background-color: white;
                padding: 10px;
                border: 1px solid #CCC;
            }
            .white_newsbox a {
                text-decoration: none;
            }
            .white_newsbox p {
                color: black;
                margin: 0 10px 0 10px;
            }
            .box_content {
                margin: 10px 0 17px 0;
            }
            .box_content:last-child {
                margin-bottom: 0;
            }
            .news_date p {
                color: #999;
            }
            /*お知らせCSSここまで*/

        /*外部リンクのCSSここから*/
        a[target="_blank"][rel="nofollow"] {
            padding-right: 15px;
            background: url(../images/link.png) right center/13px auto no-repeat;
        }
        /*外部リンクのCSSここまで*/
        }

        /* SP向けのスタイルここまで*/






    </style>