* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial Unicode MS', 'Segoe UI', Tahoma, sans-serif;
            line-height: 1.85; 
        }
        :root {
            --primary: #003366; 
            --secondary: #FF9933; 
            --accent: #138808; 
            --text: #1A1A1A; 
            --bg: #F0F8FF; 
            --card-bg: #FFFFFF; 
            --shadow: rgba(0,0,0,0.18); 
        }
        body {
            background-color: var(--bg);
            color: var(--text);
            padding-bottom: 60px;
            font-size: 108%; 
        }
        header {
            background-color: var(--primary);
            color: white;
            padding: 1.2rem 2rem;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 3px 12px var(--shadow);
            border-bottom: 4px solid var(--accent);
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-family: 'Times New Roman', serif; 
        }
        .logo span {
            color: var(--secondary);
            font-style: italic;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1280px;
            margin: 0 auto;
        }
        .desktop-nav {
            display: flex;
            gap: 2.2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            color: var(--secondary);
            border-bottom: 2px solid var(--secondary);
        }
        .mobile-nav-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .mobile-nav-btn:hover {
            transform: scale(1.15);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 1.2rem;
            padding: 1.2rem 2rem;
            background-color: var(--primary);
            border-top: 3px solid var(--secondary);
        }
        .mobile-nav.active {
            display: flex;
            animation: fadeIn 0.4s ease-in-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-15px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .btn {
            padding: 0.9rem 1.8rem;
            border: none;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: all 0.35s ease;
            box-shadow: 0 3px 8px var(--shadow);
            font-size: 105%;
        }
        .btn-primary {
            background-color: var(--primary);
            color: white;
        }
        .btn-primary:hover {
            background-color: #002244;
            transform: translateY(-3px);
            box-shadow: 0 5px 12px rgba(0,0,0,0.15);
        }
        .btn-secondary {
            background-color: var(--secondary);
            color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: #e68a00;
            transform: translateY(-3px);
            box-shadow: 0 5px 12px rgba(0,0,0,0.15);
        }
        main {
            max-width: 1280px;
            margin: 2.5rem auto;
            padding: 0 2rem;
        }
        .content-section {
            margin: 3.5rem 0;
            padding: 2.2rem;
            background-color: var(--card-bg);
            border-radius: 12px;
            box-shadow: 0 4px 18px var(--shadow);
            border-left: 5px solid var(--primary);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.8rem;
            color: var(--primary);
            border-bottom: 4px solid var(--secondary);
            padding-bottom: 0.8rem;
            letter-spacing: 0.8px;
            font-family: 'Georgia', serif;
        }
        h2 {
            font-size: 2.2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--secondary);
            position: relative;
            padding-left: 15px;
            font-family: 'Georgia', serif;
        }
        h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 6px;
            background-color: var(--primary);
            border-radius: 3px;
        }
        h3 {
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
            color: var(--primary);
            font-family: 'Georgia', serif;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.08rem;
            text-align: justify;
            color: #333;
            max-width: 85ch; 
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight {
            background-color: #FFF8DC;
            padding: 1.5rem;
            border-left: 5px solid var(--secondary);
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
            box-shadow: 0 2px 8px var(--shadow);
        }
        .img-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .img-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 5px 15px var(--shadow);
            transition: transform 0.4s ease;
            loading: lazy; 
            background: #f5f5f5; 
        }
        .img-container img:hover {
            transform: scale(1.03);
        }
        ul, ol {
            margin: 1.2rem 0 1.2rem 2.5rem;
        }
        li {
            margin-bottom: 1rem;
            color: #333;
            font-size: 1.05rem;
        }
        footer {
            background-color: var(--primary);
            color: white;
            padding: 2.5rem;
            margin-top: 4rem;
            border-top: 6px solid var(--secondary);
        }
        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2.5rem;
        }
        .footer-section h4 {
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            color: var(--secondary);
            border-bottom: 2px solid rgba(255,255,255,0.2);
            padding-bottom: 0.8rem;
            font-family: 'Georgia', serif;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .footer-links a {
            color: #f1f1f1;
            text-decoration: none;
            transition: all 0.3s ease;
            padding-left: 0;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 8px;
        }
        .copyright {
            text-align: center;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.25);
            font-size: 1.02rem;
            color: #e0e0e0;
            line-height: 1.9;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-nav-btn {
                display: block;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .content-section {
                padding: 1.8rem;
                margin: 2.5rem 0;
            }
            .btn {
                width: 100%;
                text-align: center;
                margin-bottom: 1rem;
            }
            p {
                font-size: 1.05rem;
                padding: 0 0.5rem;
            }
        }
        .btn-container {
            margin: 2.5rem 0;
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .tag-container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .tag {
            background-color: #EBF5FF;
            padding: 0.7rem 1.2rem;
            border-radius: 25px;
            font-size: 0.95rem;
            color: var(--primary);
            text-decoration: none;
            transition: all 0.35s ease;
            box-shadow: 0 2px 5px var(--shadow);
        }
        .tag:hover {
            background-color: var(--primary);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }
        .game-type {
            margin: 1.5rem 0;
            padding: 1.2rem;
            background-color: #FFE5CC;
            border-radius: 8px;
            box-shadow: 0 2px 6px var(--shadow);
        }
        .game-type a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 700;
        }
        .game-type a:hover {
            text-decoration: underline;
            text-underline-offset: 6px;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #002244;
        }
        .reference {
            font-size: 0.9rem;
            color: #555;
            margin: 0.5rem 0;
        }
        .toc {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border: 1px solid #e9ecef;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 2px 8px var(--shadow);
        }
        .toc h2 {
            font-size: 1.5rem;
            margin: 0 0 1rem 0;
            padding-left: 0;
            border-bottom: 2px solid var(--secondary);
        }
        .toc h2::before {
            display: none;
        }
        .toc ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
        }
        .toc li {
            margin: 0.8rem 0;
        }
        .toc a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
        }
        .toc a:hover {
            color: var(--primary);
            text-decoration: underline;
        }