:root {
            --primary-color: #8a2be2;
            --secondary-color: #ff6b35;
            --accent-color: #00d4ff;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            color: var(--light-color);
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(45deg, var(--accent-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .hero-section {
            background: url('https://via.placeholder.com/1200x600') center/cover no-repeat;
            min-height: 60vh;
            display: flex;
            align-items: center;
            position: relative;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.6);
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .section-title {
            border-left: 5px solid var(--accent-color);
            padding-left: 15px;
            margin: 2rem 0 1.5rem;
            font-weight: 700;
        }
        .content-card {
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            border: 1px solid rgba(255,255,255,0.1);
            padding: 2rem;
            margin-bottom: 2rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }
        .keyword-highlight {
            color: var(--accent-color);
            font-weight: 700;
            background: rgba(0,212,255,0.1);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }
        .game-feature {
            text-align: center;
            padding: 1.5rem;
            border-radius: 10px;
            background: rgba(255,255,255,0.03);
            margin-bottom: 1.5rem;
            transition: all 0.3s ease;
        }
        .game-feature:hover {
            background: rgba(255,255,255,0.08);
            transform: scale(1.03);
        }
        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        .img-container {
            border-radius: 10px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .img-container img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }
        .img-container:hover img {
            transform: scale(1.03);
        }
        .table-of-contents {
            background: rgba(255,255,255,0.05);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .toc-list {
            list-style-type: none;
            padding-left: 0;
        }
        .toc-list li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }
        .toc-list li:hover {
            border-left-color: var(--accent-color);
            padding-left: 1.5rem;
        }
        .toc-list a {
            color: var(--light-color);
            text-decoration: none;
        }
        .toc-list a:hover {
            color: var(--accent-color);
        }
        footer {
            background: rgba(0,0,0,0.7);
            padding: 3rem 0;
            margin-top: 4rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 40vh;
            }
            .content-card {
                padding: 1.5rem;
            }
        }