<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%;
        }
        #tournament_content_1,
        #tournament_content_3 {
            background-color: #e1e7ef;
            margin-right: calc(50% - 50vw);
            margin-left: calc(50% - 50vw);
            padding-right: calc(50vw - 50%);
            padding-left: calc(50vw - 50%);
        }
        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;
        }

        /* 下にホバー*/
        .hover_a a {
            color: black!important;
            font-weight: bold;
        }
        .bold {
            font-weight: bold;
            color: #202f41;
        }

        /*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*/


        /*h1のCSSここから*/
        .tournament_box {
            text-align: center;
        }
        .tournament_box  p {
            display: inline-block;
            text-align: left;
            line-height: 27px;
        }
        .tournament_p_sp {
            display: none!important;
        }
        /*h1のCSSここから*/

           /*下にホバー*/
           .hover_a {
            padding-bottom: 15px !important;
           }
           .hover_a_flex {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
           }
           .hover_a_flex a {
            margin: 15px;
            position: relative;
            font-size: 1rem;
            text-align: center;
           }
           .hover_a_flex a::after {
            position: absolute;
            left: 0;
            content: '';
            width: 100%;
            height: 2px;
            background: #202f41;
            bottom: -5px;
            transform: scale(0, 1);
            transform-origin: center top;
            transition: transform 0.3s;
           }
           .hover_a_flex a:hover::after {
            transform: scale(1, 1);
           }
           .arrow {
             position: relative;
             display: inline-block;
             width: 25px;
             height: 15px;
             right: 2px;
             top: -1px;
           }
           .arrow::before,
           .arrow::after {
             content: "";
             position: absolute;
             bottom: 0;
             left: calc(50% - -4px);
             width: 2px;
             height: 12px;
             background-color: #202f41;
             transform-origin: 50% calc(100% - 1px);
           }
           .arrow::before {
             transform: rotate(45deg);
           }
           .arrow::after {
             transform: rotate(-45deg);
           }
           /*下にホバーここまで*/
            /*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*/
            /*1つ目のh2のCSSここから*/
            #tournament_content_1,
            #tournament_content_3 {
                padding-top: 3px!important;
            }
            /*1つ目のh2のCSSここまで*/

            /*flexここから*/
            .flex_container {
                display: flex;
                flex-wrap: wrap;
                justify-content: space-between;
                align-items: center;
                padding: 0 0 25px 0;
            }
            .flex_container div {
                padding: 0 20px 0 0;
                flex: 1;
            }
            .flex_container img {
                width: 400px;
            }
            /*flex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;
            }
            h1,
            h1:after {
                padding-bottom: 3px;
            }
            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*/
        .tournament_p_pc {
            display: none!important;
        }

           /*下にホバー*/
           .hover_a_flex {
            text-align: center;
           }
           .hover_a_flex a {
            display: block;
            padding: 10px 0;
            margin: 10px;
            background-color: #e1e7ef;
           }
           .arrow {
            display: none;
           }
           /*下にホバーここまで*/
            /*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*/
           /*flexCSSここから*/
           .flex_container img {
            width: 250px;
            display: block;
            margin: auto;
           }
           #tournament_content_1 h2,
           #tournament_content_3 h2 {
            padding-top: 17px !important;
           }
           #tournament_content_1,
           #tournament_content_3 {
            padding-bottom: 14px;
           }
           .flex_container {
            margin: 20px 0 10px 0;
           }
        }

        /* SP向けのスタイルここまで*/






    </style>