* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #00b2ff; 
            --secondary-color: #ff4654; 
            --dark-bg: #121212;
            --card-bg: #1e1e1e;
            --text-light: #f0f0f0;
            --text-muted: #aaaaaa;
            --border-color: #333;
            --success-color: #4CAF50;
            --transition: all 0.3s ease;
            --shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
            --border-radius: 10px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-light);
            background-color: var(--dark-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        ul, ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        section, article, aside, header, footer, main {
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary-color), #0088cc);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 178, 255, 0.3);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(0, 178, 255, 0.5);
            color: white;
        }
        .btn-secondary {
            background: linear-gradient(135deg, var(--secondary-color), #cc0033);
        }
        .section-title {
            font-size: 2.2rem;
            margin-bottom: 2rem;
            color: white;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        .card {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 1.8rem;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .card:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
        }
        .highlight {
            color: var(--primary-color);
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .text-center {
            text-align: center;
        }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .py-2 { padding-top: 1rem; padding-bottom: 1rem; }
        .py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
        .py-4 { padding-top: 2rem; padding-bottom: 2rem; }
        .p-2 { padding: 1rem; }
        .p-3 { padding: 1.5rem; }
        header {
            background-color: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .logo a {
            background: none;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            position: relative;
            padding: 5px 0;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: var(--text-light);
        }
        .nav-mobile {
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100vh;
            background-color: var(--dark-bg);
            padding: 2rem;
            transition: right 0.4s ease;
            z-index: 1001;
            box-shadow: -5px 0 15px rgba(0,0,0,0.5);
            overflow-y: auto;
        }
        .nav-mobile.active {
            right: 0;
        }
        .nav-mobile .close-menu {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .nav-mobile ul {
            list-style: none;
            padding: 0;
            margin-top: 3rem;
        }
        .nav-mobile li {
            margin-bottom: 1.5rem;
        }
        .nav-mobile a {
            font-size: 1.2rem;
            font-weight: 600;
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            z-index: 1000;
        }
        .overlay.active {
            display: block;
        }
        .breadcrumb {
            background-color: rgba(30, 30, 30, 0.8);
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: var(--text-muted);
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto 3rem;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            background-color: var(--card-bg);
            color: var(--text-light);
            font-size: 1rem;
        }
        .search-form input:focus {
            outline: none;
            background-color: #252525;
        }
        .search-form button {
            background: linear-gradient(135deg, var(--primary-color), #0088cc);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: linear-gradient(135deg, #00a3e6, #0077b3);
        }
        .hero {
            padding: 3rem 0;
            background: radial-gradient(circle at 50% 0%, rgba(0, 178, 255, 0.1) 0%, transparent 50%);
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, #fff, var(--primary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-text p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }
        .hero-image {
            position: relative;
        }
        .hero-image img {
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-muted);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0 4rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        article h2 {
            font-size: 1.8rem;
            margin: 3rem 0 1.5rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
            color: white;
        }
        article h3 {
            font-size: 1.4rem;
            margin: 2.5rem 0 1rem;
            color: var(--primary-color);
        }
        article blockquote {
            border-left: 4px solid var(--primary-color);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--text-muted);
        }
        article .infobox {
            background: linear-gradient(135deg, rgba(0, 178, 255, 0.1), rgba(255, 70, 84, 0.1));
            border-left: 5px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            text-align: center;
            padding: 1.5rem;
            background: var(--card-bg);
            border-radius: var(--border-radius);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        .tip-box {
            background-color: rgba(76, 175, 80, 0.1);
            border: 1px solid var(--success-color);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin: 2rem 0;
            position: relative;
        }
        .tip-box::before {
            content: '💡';
            position: absolute;
            top: -15px;
            left: 20px;
            background: var(--dark-bg);
            padding: 0 10px;
            font-size: 1.5rem;
        }
        .sidebar .card {
            margin-bottom: 2rem;
        }
        .sidebar-title {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: white;
        }
        .toc ul {
            list-style: none;
            padding: 0;
        }
        .toc li {
            margin-bottom: 0.8rem;
            padding-left: 0;
        }
        .toc a {
            display: block;
            padding: 8px 15px;
            background-color: #252525;
            border-radius: 5px;
            transition: var(--transition);
        }
        .toc a:hover {
            background-color: #333;
            padding-left: 20px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffc107;
            margin: 1rem 0;
        }
        .stars i {
            cursor: pointer;
            margin: 0 2px;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form input, .rating-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            background-color: #252525;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            color: var(--text-light);
        }
        .rating-form button {
            width: 100%;
        }
        .comment-section {
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 2px solid var(--border-color);
        }
        .comment {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
        }
        .comment-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: white;
            flex-shrink: 0;
        }
        .comment-content h4 {
            margin-bottom: 5px;
            color: white;
        }
        .comment-meta {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 150px;
            padding: 15px;
            background-color: #252525;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            color: var(--text-light);
            margin-bottom: 1rem;
            resize: vertical;
        }
        .comment-form .btn {
            display: block;
            width: 200px;
            margin-left: auto;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: var(--card-bg);
            padding: 1.2rem;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .web-link:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
        }
        footer {
            background-color: #0a0a0a;
            padding: 4rem 0 2rem;
            border-top: 1px solid var(--border-color);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-col h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            color: var(--text-muted);
        }
        .footer-col a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: #252525;
            border-radius: 50%;
            font-size: 1.2rem;
        }
        .social-links a:hover {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            transform: translateY(-3px);
        }
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            .comment {
                flex-direction: column;
                align-items: flex-start;
            }
            .comment-avatar {
                margin-bottom: 1rem;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-form input, .search-form button {
                width: 100%;
                border-radius: 0;
                padding: 15px;
            }
            .search-form button {
                border-radius: 0 0 var(--border-radius) var(--border-radius);
            }
        }