:root {
            --neon-blue: #00f3ff;
            --neon-pink: #ff00ff;
            --deep-purple: #1a0a2b;
            --dark-gray: #0d0d0d;
            --medium-gray: #1a1a1a;
            --light-gray: #e6e6e6;
            --text-color: #f0f0f0;
            --accent-yellow: #ffee00;
            --transition-speed: 0.3s;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--dark-gray);
            background-image:
                radial-gradient(circle at 10% 20%, rgba(0, 243, 255, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(255, 0, 255, 0.05) 0%, transparent 20%);
            overflow-x: hidden;
        }
        a {
            color: var(--neon-blue);
            text-decoration: none;
            transition: color var(--transition-speed) ease, text-shadow var(--transition-speed) ease;
        }
        a:hover {
            color: var(--neon-pink);
            text-shadow: 0 0 8px currentColor;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: rgba(13, 13, 13, 0.95);
            border-bottom: 1px solid var(--neon-blue);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(5px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
        }
        .my-logo:hover {
            text-shadow: 0 0 15px rgba(255, 0, 255, 0.5);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            padding: 8px 5px;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-blue);
            transition: width var(--transition-speed) ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #aaa;
            border-bottom: 1px solid #333;
        }
        .breadcrumb a {
            color: #ccc;
        }
        .breadcrumb span {
            color: var(--neon-blue);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--neon-blue);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .search-module {
            background: var(--medium-gray);
            border: 1px solid #333;
            border-radius: 50px;
            padding: 30px;
            margin: 30px 0;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        .search-module h2 {
            margin-bottom: 20px;
            color: var(--neon-blue);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid var(--neon-blue);
            border-radius: 50px 0 0 50px;
            background: rgba(0, 0, 0, 0.6);
            color: white;
            font-size: 1rem;
        }
        .search-button {
            padding: 15px 30px;
            background: linear-gradient(90deg, var(--neon-blue), #0099cc);
            color: var(--dark-gray);
            border: none;
            border-radius: 0 50px 50px 0;
            font-weight: bold;
            cursor: pointer;
            transition: background var(--transition-speed) ease;
        }
        .search-button:hover {
            background: linear-gradient(90deg, var(--neon-pink), #cc00cc);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(26, 10, 43, 0.7);
            border-radius: 10px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
            border: 1px solid rgba(0, 243, 255, 0.1);
        }
        h1, h2, h3, h4 {
            font-family: 'Orbitron', sans-serif;
            margin-top: 1.5em;
            margin-bottom: 0.7em;
            line-height: 1.3;
            color: var(--neon-blue);
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--neon-pink);
            padding-bottom: 15px;
            text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--neon-pink);
            border-left: 5px solid var(--neon-blue);
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-yellow);
        }
        h4 {
            font-size: 1.4rem;
            color: #aaa;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #ccc;
            border-left: 4px solid var(--neon-pink);
            padding-left: 20px;
            margin-bottom: 2.5em;
        }
        .highlight {
            background: rgba(0, 243, 255, 0.1);
            border-left: 5px solid var(--neon-blue);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box {
            background: rgba(255, 238, 0, 0.08);
            border: 1px dashed var(--accent-yellow);
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .tip-box::before {
            content: "💡 PRO TIP: ";
            font-weight: bold;
            color: var(--accent-yellow);
        }
        .image-container {
            margin: 40px 0;
            text-align: center;
        }
        .featured-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            border: 2px solid var(--neon-blue);
            box-shadow: 0 10px 25px rgba(0, 243, 255, 0.2);
            transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
        }
        .featured-img:hover {
            transform: scale(1.01);
            box-shadow: 0 15px 35px rgba(255, 0, 255, 0.3);
        }
        .img-caption {
            margin-top: 10px;
            font-style: italic;
            color: #aaa;
            font-size: 0.95rem;
        }
        .content-list {
            background: rgba(255, 255, 255, 0.03);
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .content-list ul {
            list-style: none;
            padding-left: 20px;
        }
        .content-list li {
            margin-bottom: 12px;
            padding-left: 25px;
            position: relative;
        }
        .content-list li::before {
            content: '▸';
            color: var(--neon-pink);
            position: absolute;
            left: 0;
        }
        .sidebar {
            background: rgba(26, 26, 26, 0.8);
            border-radius: 10px;
            padding: 25px;
            border: 1px solid #333;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            font-size: 1.5rem;
            margin-top: 0;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--neon-blue);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #333;
        }
        .related-links a {
            display: block;
            padding: 8px 0;
        }
        .update-time {
            background: rgba(0, 243, 255, 0.1);
            padding: 15px;
            border-radius: 8px;
            margin-top: 20px;
            text-align: center;
            font-size: 0.9rem;
        }
        .interactive-module {
            background: var(--medium-gray);
            border-radius: 10px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #444;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
            color: var(--neon-blue);
        }
        .module-title i {
            font-size: 2rem;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #555;
            cursor: pointer;
            transition: color var(--transition-speed) ease, transform var(--transition-speed) ease;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--accent-yellow);
            transform: scale(1.1);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: bold;
            color: #ccc;
        }
        .form-control {
            padding: 15px;
            border: 1px solid #555;
            border-radius: 8px;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            font-size: 1rem;
            transition: border-color var(--transition-speed) ease;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--neon-blue);
            box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
        }
        .submit-btn {
            padding: 15px 30px;
            background: linear-gradient(90deg, var(--neon-pink), #cc00cc);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
            align-self: flex-start;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 0, 255, 0.4);
        }
        .site-footer {
            background-color: #0a0415;
            border-top: 2px solid var(--neon-pink);
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: var(--neon-blue);
            margin-bottom: 25px;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 15px;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 5px;
            transition: background var(--transition-speed) ease, padding-left var(--transition-speed) ease;
        }
        friend-link:hover {
            background: rgba(0, 243, 255, 0.1);
            padding-left: 20px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #333;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            article { padding: 30px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: rgba(13, 13, 13, 0.98);
                flex-direction: column;
                padding: 20px;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.5s ease;
                border-top: 1px solid var(--neon-blue);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid #333;
            }
            .main-nav a {
                display: block;
                padding: 18px 0;
            }
            .header-content { padding: 12px 0; }
            .my-logo { font-size: 1.8rem; }
        }
        @media (max-width: 576px) {
            .container { padding: 0 15px; }
            article { padding: 25px 20px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .search-form { flex-direction: column; }
            .search-input, .search-button { border-radius: 50px; width: 100%; }
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(0, 243, 255, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(0, 243, 255, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 243, 255, 0); }
        }
        .pulse {
            animation: pulse 2s infinite;
            border-radius: 50px;
        }
        @media print {
            .site-header, .sidebar, .interactive-module, .site-footer, .search-module { display: none; }
            body { background: white; color: black; }
            a { color: #0000ee; }
            .container { max-width: 100%; }
        }