/* 追加スタイル */
        .roadmap-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin: 40px 0;
        }

        .roadmap-card {
            background: var(--white);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
            position: relative;
        }

        .roadmap-card:hover {
            transform: translateY(-5px);
        }

        .roadmap-icon {
            font-size: 3rem;
            margin-bottom: 15px;
        }

        .roadmap-phase {
            display: inline-block;
            background: var(--primary-color);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .roadmap-date {
            font-size: 1.1rem;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 10px;
        }

        .roadmap-title {
            font-size: 1.3rem;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .roadmap-desc {
            color: var(--light-text);
            font-size: 0.9rem;
        }

        .roadmap-status {
            margin-top: 15px;
            padding: 8px 16px;
            background: rgba(230, 126, 34, 0.1);
            border-radius: 10px;
            font-size: 0.85rem;
            font-weight: bold;
        }

        .discord-notice {
            background: linear-gradient(135deg, #5865F2 0%, #4752c4 100%);
            border-radius: 20px;
            padding: 30px;
            margin: 40px 0;
            text-align: center;
            color: white;
        }

        .discord-notice a {
            color: #fff;
            text-decoration: underline;
        }

        .discord-notice .btn-discord-badge {
            display: inline-block;
            background: #fff;
            color: #5865F2;
            padding: 12px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            margin-top: 15px;
            transition: transform 0.3s;
        }

        .discord-notice .btn-discord-badge:hover {
            transform: translateY(-2px);
        }

        .warning-box {
            background: #fff4e5;
            border-left: 4px solid #f39c12;
            padding: 20px;
            border-radius: 12px;
            margin: 30px 0;
        }

        .warning-title {
            font-weight: bold;
            color: #f39c12;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        @media (max-width: 768px) {
            .roadmap-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .dark-mode .warning-box {
            background: #1e2a3a;
            border-left-color: #f39c12;
        }

        .dark-mode .roadmap-card {
            background-color: #16213e;
        }

        .dark-mode .roadmap-status {
            background: rgba(243, 156, 18, 0.15);
        }

        #server-ip {
            font-size: 1.2rem;
            font-weight: bold;
        }