* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
            line-height: 1.8;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f5f0;
            color: #2c3e50;
            padding-bottom: 50px;
        }
        header {
            background-color: #000080;
            color: #fff;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.15);
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #FF8C00;
        }
        .logo a {
            color: #FF8C00;
            text-decoration: none;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            color: #fff;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #FF8C00;
            transition: width 0.3s ease;
        }
        .main-nav a:hover {
            color: #FF8C00;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #FF8C00;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1.5rem auto;
            padding: 0 2rem;
            font-size: 0.9rem;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #000080;
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
            color: #FF8C00;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #000080;
            margin-bottom: 2rem;
            border-bottom: 4px solid #FF8C00;
            padding-bottom: 0.8rem;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2.2rem;
            color: #000080;
            margin: 2.5rem 0 1.2rem;
            position: relative;
            padding-left: 1rem;
        }
        h2::before {
            content: '⚽';
            position: absolute;
            left: -0.5rem;
        }
        h3 {
            font-size: 1.6rem;
            color: #2c3e50;
            margin: 1.8rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.08rem;
            color: #2c3e50;
        }
        strong {
            color: #000080;
            font-weight: 700;
        }
        em {
            color: #e67e22;
            font-style: italic;
        }
        .img-container {
            margin: 2.5rem 0;
            text-align: center;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .img-container img {
            max-width: 100%;
            height: auto;
            transition: transform 0.3s ease;
        }
        .img-container:hover img {
            transform: scale(1.02);
        }
        .img-caption {
            font-size: 0.95rem;
            color: #7f8c8d;
            margin-top: 0.8rem;
            padding: 0.5rem;
            background-color: #fef9e7;
        }
        a.internal-link {
            color: #e67e22;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted #e67e22;
            transition: all 0.3s ease;
        }
        a.internal-link:hover {
            color: #d35400;
            border-bottom: 2px solid #d35400;
        }
        ul, ol {
            margin: 1.2rem 0 1.2rem 2.5rem;
            font-size: 1.08rem;
        }
        li {
            margin-bottom: 1rem;
            position: relative;
            padding-left: 0.5rem;
        }
        li::before {
            content: '•';
            position: absolute;
            left: -1rem;
            color: #FF8C00;
            font-weight: bold;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2.5rem 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        .data-table th, .data-table td {
            padding: 1.2rem;
            border: 1px solid #e0e0e0;
            text-align: left;
        }
        .data-table th {
            background-color: #000080;
            color: #fff;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .data-table tr:nth-child(even) {
            background-color: #faf6f0;
        }
        .data-table tr:hover {
            background-color: #fef9e7;
            transition: background-color 0.2s ease;
        }
        blockquote {
            border-left: 4px solid #FF8C00;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background-color: #fef9e7;
            font-style: italic;
            color: #2c3e50;
        }
        footer {
            background-color: #000080;
            color: #fff;
            padding: 4rem 2rem;
            margin-top: 5rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2.5rem;
        }
        .footer-section h4 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #FF8C00;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-section h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: #FF8C00;
        }
        .game-types a, .tags a {
            display: inline-block;
            color: #fff;
            text-decoration: none;
            background-color: #1a237e;
            padding: 0.6rem 1.2rem;
            margin: 0.4rem;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .game-types a:hover, .tags a:hover {
            background-color: #FF8C00;
            color: #000080;
            transform: translateY(-2px);
        }
        friend-link a {
            color: #FF8C00;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
        }
        friend-link a:hover {
            text-decoration: underline;
            color: #fff;
        }
        .footer-section p {
            color: #e0e0e0;
            font-size: 1rem;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid #1a237e;
            font-size: 0.95rem;
            color: #bdbdbd;
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #000080;
                padding: 1.5rem 2rem;
                gap: 1.5rem;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 1.5rem;
            }
            .breadcrumb {
                padding: 0 1.5rem;
            }
            .data-table th, .data-table td {
                padding: 0.8rem;
                font-size: 0.95rem;
            }
            .footer-container {
                gap: 2rem;
            }
        }
        @media (max-width: 480px) {
            header {
                padding: 1rem 1.5rem;
            }
            .logo {
                font-size: 1.5rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            ul, ol {
                margin-left: 1.5rem;
            }
            .game-types a, .tags a {
                padding: 0.5rem 0.8rem;
                margin: 0.3rem;
                font-size: 0.9rem;
            }
        }