* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #2A2A72;
            --secondary: #FF6B6B;
            --accent: #4ECDC4;
            --light: #F7FFF7;
            --dark: #292F36;
            --gray: #6C757D;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--dark);
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: var(--primary);
            color: var(--light);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 var(--radius) var(--radius);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            padding-left: 1rem;
        }
        .my-logo:hover { transform: scale(1.03); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            padding-right: 1rem;
        }
        .main-nav a {
            color: var(--light);
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .main-nav a:hover {
            background: rgba(255,255,255,0.15);
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
            padding-right: 1rem;
        }
        .breadcrumb {
            padding: 1rem 1.5rem;
            background: rgba(255,255,255,0.1);
            margin: 1rem 1.5rem;
            border-radius: var(--radius);
            font-size: 0.95rem;
        }
        .breadcrumb a { color: var(--accent); }
        .user-actions {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .action-box {
            background: white;
            padding: 1.8rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .action-box h3 { margin-bottom: 1rem; color: var(--primary); }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #e1e5eb;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(255,107,107,0.3);
        }
        .stars { display: flex; gap: 0.5rem; margin: 1rem 0; }
        .star { font-size: 1.5rem; color: #ddd; cursor: pointer; }
        .star:hover, .star.active { color: #FFD700; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 1.5rem;
            border-left: 5px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-bottom: 2rem;
        }
        .highlight {
            background: #fff9e6;
            padding: 1.5rem;
            border-radius: var(--radius);
            border: 2px dashed #FFD93D;
            margin: 2rem 0;
        }
        .feature-img {
            width: 100%;
            margin: 2rem auto;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .internal-links {
            background: #f1f8ff;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .internal-links ul { columns: 2; list-style-position: inside; }
        .internal-links li { margin-bottom: 0.7rem; }
        aside {
            background: white;
            padding: 1.8rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget { margin-bottom: 2rem; }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .related-links li { margin-bottom: 0.8rem; padding-left: 0.5rem; }
        .related-links li:before { content: "🎮"; margin-right: 0.5rem; }
        .update-time {
            background: var(--light);
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            color: var(--gray);
        }
        footer {
            background: var(--dark);
            color: var(--light);
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 3rem;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--accent);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #ccc; }
        .footer-links a:hover { color: var(--accent); padding-left: 5px; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 4px solid var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: var(--shadow);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            .header-container { padding: 0 1rem; }
            .user-actions { grid-template-columns: 1fr; }
            h1 { font-size: 2.2rem; }
            .internal-links ul { columns: 1; }
        }