:root {
            --primary-green: #2e8b57;
            --secondary-gold: #ffd700;
            --accent-blue: #1e90ff;
            --dark-text: #2c3e50;
            --light-bg: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark-text);
            background-color: var(--light-bg);
        }
        .logo-text {
            font-family: 'Georgia', serif;
            font-weight: bold;
            color: var(--primary-green);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
            font-size: 1.8rem;
        }
        .nav-custom {
            background: linear-gradient(135deg, var(--primary-green), #1e6b47);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .nav-link {
            color: white !important;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem !important;
        }
        .nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            border-radius: 4px;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(46, 139, 87, 0.8), rgba(30, 107, 71, 0.9)), url('https://via.placeholder.com/1200x600') center/cover no-repeat;
            color: white;
            padding: 4rem 0;
            text-align: center;
        }
        .section-title {
            color: var(--primary-green);
            border-left: 5px solid var(--secondary-gold);
            padding-left: 15px;
            margin: 2rem 0 1.5rem;
            font-weight: 700;
        }
        .content-card {
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            padding: 2rem;
            margin-bottom: 2rem;
            transition: transform 0.3s ease;
            border-top: 4px solid var(--primary-green);
        }
        .content-card:hover {
            transform: translateY(-5px);
        }
        .highlight-text {
            background: linear-gradient(120deg, var(--secondary-gold) 0%, var(--secondary-gold) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
        }
        .key-point {
            background-color: #e8f5e9;
            border-left: 4px solid var(--primary-green);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .game-image {
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin: 1.5rem 0;
            transition: transform 0.3s ease;
            width: 100%;
            height: auto;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .strategy-box {
            background: #f0f8ff;
            border: 1px solid var(--accent-blue);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem 0;
        }
        .footer-custom {
            background: linear-gradient(135deg, #2c3e50, #34495e);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 2rem 0;
            }
            .content-card {
                padding: 1.5rem;
            }
            .logo-text {
                font-size: 1.5rem;
            }
        }
        .toc-item {
            padding: 0.5rem 0;
            border-bottom: 1px solid #eaeaea;
        }
        .toc-item:last-child {
            border-bottom: none;
        }
        .emoji-bullet {
            margin-right: 10px;
            font-size: 1.2rem;
        }