:root {
            --primary-dark: #0a0e17;
            --primary-accent: #00b4ff;
            --secondary-accent: #ff4757;
            --text-primary: #e0e0e0;
            --text-secondary: #a0a0a0;
            --bg-card: #1a1f2e;
            --bg-section: #111827;
            --border-color: #2a334f;
            --success-color: #2ed573;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--primary-dark);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-accent);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--secondary-accent);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(10, 14, 23, 0.95);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-accent);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-accent);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--bg-card);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            border-top: 1px solid var(--border-color);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 15px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px;
            border-left: 3px solid transparent;
            transition: all 0.3s;
        }
        .mobile-nav a:hover {
            border-left-color: var(--primary-accent);
            background-color: rgba(0, 180, 255, 0.1);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-accent);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            padding: 30px 0;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            background: linear-gradient(90deg, var(--primary-accent), #8a2be2);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1.2;
        }
        .article-meta {
            color: var(--text-secondary);
            font-style: italic;
            margin-bottom: 20px;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 30px 0;
            border: 2px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.7);
        }
        .content-section {
            background-color: var(--bg-section);
            padding: 40px;
            border-radius: 15px;
            margin-bottom: 40px;
            border: 1px solid var(--border-color);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-accent);
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.7rem;
            color: var(--secondary-accent);
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(0, 180, 255, 0.1);
            border-left: 4px solid var(--primary-accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background-color: rgba(46, 213, 115, 0.1);
            border-left: 4px solid var(--success-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip::before {
            content: '💡 ';
            font-size: 1.2rem;
        }
        .interactive-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-box {
            background-color: var(--bg-card);
            padding: 25px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 180, 255, 0.2);
        }
        .feature-box h3 {
            color: var(--primary-accent);
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-box form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        input, textarea, select {
            padding: 12px 15px;
            background-color: var(--primary-dark);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-primary);
            font-size: 1rem;
            width: 100%;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-accent);
        }
        button {
            background: linear-gradient(90deg, var(--primary-accent), #0066cc);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }
        button:hover {
            background: linear-gradient(90deg, #0066cc, var(--primary-accent));
            box-shadow: 0 5px 15px rgba(0, 180, 255, 0.4);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        .rating-stars .star {
            font-size: 1.8rem;
            color: #444;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars .star.active {
            color: gold;
        }
        .related-links {
            margin: 30px 0;
            padding: 20px;
            background-color: var(--bg-card);
            border-radius: 10px;
        }
        .related-links ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }
        .related-links li {
            background-color: var(--primary-dark);
            padding: 10px 20px;
            border-radius: 50px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .related-links li:hover {
            border-color: var(--primary-accent);
            transform: scale(1.05);
        }
        .web-links {
            background-color: var(--bg-section);
            padding: 40px 0;
            margin-top: 50px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: var(--bg-card);
            padding: 15px;
            border-radius: 8px;
            border-left: 3px solid var(--primary-accent);
        }
        footer {
            background-color: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .copyright {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 20px;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            .content-section {
                padding: 30px;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .interactive-features {
                grid-template-columns: 1fr;
            }
            .content-section {
                padding: 20px;
            }
            .web-links-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
            .related-links ul {
                flex-direction: column;
                align-items: center;
            }
        }