* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a1a2e;
            --secondary: #16213e;
            --accent: #00b4d8;
            --accent-light: #90e0ef;
            --text: #e6e6e6;
            --text-light: #a0a0a0;
            --card-bg: rgba(255, 255, 255, 0.05);
            --border: rgba(0, 180, 216, 0.2);
            --success: #4cc9f0;
            --warning: #f72585;
        }
        body {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(22, 33, 62, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--accent);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-light);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s;
        }
        .logo:hover {
            color: white;
            transform: scale(1.02);
        }
        .logo i {
            color: var(--warning);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--border);
            border-right: none;
            border-radius: 25px 0 0 25px;
            color: white;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s;
        }
        .search-input:focus {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--accent);
        }
        .search-btn {
            background: var(--accent);
            color: white;
            border: none;
            border-radius: 0 25px 25px 0;
            padding: 0 25px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }
        .search-btn:hover {
            background: var(--accent-light);
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
            padding: 15px 0;
            border-top: 1px solid var(--border);
        }
        .nav-link {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
            transition: all 0.3s;
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            transition: 0.3s;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--secondary);
            padding: 20px;
            border-top: 1px solid var(--border);
        }
        .nav-mobile.active {
            display: flex;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--accent-light);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 30px 0;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
            padding: 20px;
            background: var(--card-bg);
            border-radius: 15px;
            border: 1px solid var(--border);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--accent-light);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-section {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 30px;
            margin-bottom: 30px;
            border: 1px solid var(--border);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .content-section:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--accent-light);
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(0, 180, 216, 0.1);
            border-left: 4px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin: 25px 0;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
            border: 1px solid var(--border);
        }
        .feature-card h4 {
            color: var(--success);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .download-box {
            background: linear-gradient(135deg, rgba(0, 180, 216, 0.2) 0%, rgba(144, 224, 239, 0.1) 100%);
            border: 2px solid var(--accent);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            margin: 40px 0;
        }
        .download-btn {
            display: inline-block;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
            color: var(--primary);
            padding: 18px 45px;
            font-size: 1.3rem;
            font-weight: 800;
            text-decoration: none;
            border-radius: 50px;
            margin: 20px 0;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(0, 180, 216, 0.3);
        }
        .download-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 25px rgba(0, 180, 216, 0.5);
        }
        .article-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 25px 0;
            border: 2px solid var(--border);
            transition: transform 0.5s;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            color: var(--text-light);
            font-style: italic;
            margin-top: -15px;
            margin-bottom: 25px;
        }
        .rating-section {
            background: var(--card-bg);
            padding: 25px;
            border-radius: 15px;
            margin: 40px 0;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
        }
        .star {
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .star:hover,
        .star.active {
            color: gold;
            transform: scale(1.2);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin: 30px 0;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-input {
            padding: 15px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: white;
            font-size: 1rem;
            transition: all 0.3s;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.15);
        }
        textarea.form-input {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            align-self: flex-start;
            background: var(--accent);
            color: white;
            border: none;
            padding: 15px 40px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover {
            background: var(--accent-light);
            color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 40px 0;
            padding: 30px;
            background: var(--card-bg);
            border-radius: 15px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.03);
            padding: 12px 20px;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: rgba(0, 180, 216, 0.1);
            transform: translateX(5px);
        }
        .web-link a {
            color: var(--accent-light);
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background: rgba(10, 15, 35, 0.95);
            padding: 40px 0 20px;
            border-top: 2px solid var(--accent);
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: var(--accent);
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links-mini {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.2rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .search-form {
                flex: 0 1 300px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-top {
                flex-wrap: wrap;
                gap: 15px;
            }
            .search-form {
                flex: 1 0 100%;
                order: 3;
            }
            .content-section {
                padding: 20px;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .download-btn {
                padding: 15px 30px;
                font-size: 1.1rem;
            }
        }
        @media (max-width: 480px) {
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .download-box {
                padding: 20px;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-section {
            animation: fadeIn 0.5s ease-out;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--accent);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent-light);
        }