:root {
            --primary-blue: #1a237e;
            --accent-cyan: #00e5ff;
            --sonic-blue: #1b75bc;
            --sonic-yellow: #ffd700;
            --dark-bg: #0a0a2a;
            --light-text: #f0f8ff;
            --card-bg: rgba(26, 35, 126, 0.7);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 12px;
            --shadow: 0 8px 24px rgba(0, 229, 255, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--light-text);
            background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1a3a 50%, var(--primary-blue) 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: var(--sonic-yellow);
            transform: translateY(-2px);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background: rgba(10, 10, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--sonic-blue);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: var(--spacing-sm) 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 1.8rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--accent-cyan), var(--sonic-yellow));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--light-text);
            font-size: 1.5rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .main-nav a:hover {
            background: rgba(0, 229, 255, 0.1);
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .search-section {
            background: var(--card-bg);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.75rem 1rem;
            border: 2px solid var(--sonic-blue);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            background: rgba(255, 255, 255, 0.1);
            color: var(--light-text);
            font-size: 1rem;
        }
        .search-btn {
            background: linear-gradient(90deg, var(--sonic-blue), var(--accent-cyan));
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: bold;
            transition: opacity 0.3s;
        }
        .search-btn:hover {
            opacity: 0.9;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            padding: var(--spacing-lg) 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #ccc;
            margin-bottom: var(--spacing-md);
            font-size: 0.9rem;
        }
        h1, h2, h3, h4 {
            font-family: 'Trebuchet MS', sans-serif;
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
            color: var(--sonic-yellow);
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--accent-cyan);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--sonic-blue);
            padding-left: var(--spacing-sm);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-cyan);
        }
        h4 {
            font-size: 1.4rem;
        }
        p {
            margin-bottom: var(--spacing-sm);
            text-align: justify;
        }
        .highlight {
            background: rgba(255, 215, 0, 0.1);
            border-left: 4px solid var(--sonic-yellow);
            padding: var(--spacing-sm);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            border: 3px solid var(--sonic-blue);
            margin: var(--spacing-md) 0;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
        }
        .widget-title {
            color: var(--sonic-yellow);
            border-bottom: 2px solid;
            padding-bottom: var(--spacing-xs);
            margin-bottom: var(--spacing-sm);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.75rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .related-links li::before {
            content: '➤';
            position: absolute;
            left: 0;
            color: var(--accent-cyan);
        }
        .rating-section, .comments-section {
            margin-top: var(--spacing-lg);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            background: rgba(0, 0, 0, 0.3);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #555;
            cursor: pointer;
            margin-bottom: var(--spacing-sm);
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--sonic-yellow);
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            padding: 0.75rem;
            border-radius: var(--border-radius);
            border: 1px solid #444;
            background: rgba(255, 255, 255, 0.1);
            color: var(--light-text);
            font-size: 1rem;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(90deg, var(--sonic-blue), var(--accent-cyan));
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            align-self: flex-start;
            transition: transform 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
        }
        .comment {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
            border-left: 4px solid var(--accent-cyan);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: var(--spacing-xs);
            font-size: 0.9rem;
            color: #ccc;
        }
        .site-footer {
            background: rgba(10, 10, 42, 0.98);
            border-top: 2px solid var(--sonic-blue);
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-lg);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
        }
        friend-link {
            display: block;
            background: rgba(27, 117, 188, 0.2);
            padding: var(--spacing-sm);
            margin: 0.5rem 0;
            border-radius: var(--border-radius);
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(27, 117, 188, 0.4);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: rgba(10, 10, 42, 0.98);
                transition: left 0.3s ease;
                padding: var(--spacing-md);
                border-top: 1px solid var(--sonic-blue);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: var(--spacing-md);
            }
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(0, 229, 255, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 229, 255, 0); }
        }
        .pulse {
            animation: pulse 2s infinite;
            border-radius: var(--border-radius);
        }