* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3d5f;
            --secondary: #ff5500;
            --accent: #00a8ff;
            --dark: #0d1c2f;
            --light: #f5f7fa;
            --gray: #8a9ba8;
            --transition: all 0.3s ease;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #0d1c2f 0%, #1a3d5f 100%);
            min-height: 100vh;
        }
        h1, h2, h3, h4 {
            color: var(--light);
            margin-bottom: 1.5rem;
            font-weight: 700;
            line-height: 1.3;
        }
        h1 {
            font-size: 3.2rem;
            background: linear-gradient(90deg, #ff5500, #ffaa00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 10px rgba(255, 85, 0, 0.2);
        }
        h2 {
            font-size: 2.4rem;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.8rem;
            color: #d1e3ff;
            font-size: 1.1rem;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        header {
            background: rgba(13, 28, 47, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid rgba(255, 85, 0, 0.3);
            padding: 1.2rem 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 3rem;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--light);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .logo span {
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo i {
            color: var(--accent);
            font-size: 2.5rem;
        }
        .desktop-nav {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }
        .desktop-nav a {
            color: var(--light);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.8rem 1.2rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            background: rgba(255, 85, 0, 0.15);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: 2px solid var(--secondary);
            color: var(--light);
            font-size: 1.8rem;
            padding: 0.6rem 1.2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-menu-btn:hover {
            background: var(--secondary);
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--dark);
            padding: 2rem;
            border-top: 2px solid var(--secondary);
            box-shadow: var(--shadow);
            flex-direction: column;
            gap: 1.5rem;
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background: rgba(26, 61, 95, 0.7);
            padding: 1.2rem 0;
            margin-bottom: 3rem;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .breadcrumb ul {
            display: flex;
            gap: 1rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            color: var(--gray);
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: var(--accent);
        }
        .breadcrumb a {
            color: var(--light);
        }
        main {
            background: rgba(26, 61, 95, 0.85);
            border-radius: var(--border-radius);
            padding: 3rem;
            margin-bottom: 3rem;
            box-shadow: var(--shadow);
            backdrop-filter: blur(5px);
        }
        .hero-image {
            width: 100%;
            height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0 3rem;
            border: 3px solid rgba(255, 85, 0, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .article-content {
            max-width: 1000px;
            margin: 0 auto;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(255, 85, 0, 0.1), rgba(0, 168, 255, 0.1));
            border-left: 5px solid var(--secondary);
            padding: 2rem;
            margin: 3rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-box h3 {
            color: var(--secondary);
            margin-top: 0;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 4rem 0;
        }
        .feature-card {
            background: rgba(13, 28, 47, 0.7);
            padding: 2rem;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 85, 0, 0.2);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            border-color: var(--secondary);
            box-shadow: 0 15px 30px rgba(255, 85, 0, 0.2);
        }
        .feature-card h3 {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .feature-card i {
            color: var(--secondary);
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            color: var(--light);
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.15);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, var(--secondary), #ff7733);
            color: white;
            padding: 1rem 2.5rem;
            border: none;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 85, 0, 0.3);
            text-decoration: none;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
        }
        .star {
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffaa00;
            transform: scale(1.2);
        }
        .web-links-section {
            background: rgba(13, 28, 47, 0.8);
            padding: 3rem;
            border-radius: var(--border-radius);
            margin: 4rem 0;
            border: 1px solid rgba(0, 168, 255, 0.2);
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .web-link {
            background: rgba(26, 61, 95, 0.5);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 85, 0, 0.1);
            border-color: var(--secondary);
            transform: translateX(10px);
        }
        .web-link a {
            color: var(--light);
            font-weight: 600;
            display: block;
        }
        footer {
            background: var(--dark);
            padding: 4rem 0 2rem;
            border-top: 3px solid var(--secondary);
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h4 {
            color: var(--light);
            font-size: 1.4rem;
            margin-bottom: 1.8rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        .footer-section h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--secondary);
        }
        .footer-section p, .footer-section a {
            color: var(--gray);
            margin-bottom: 1rem;
            display: block;
        }
        .footer-section a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            h3 { font-size: 1.6rem; }
            .container { padding: 0 1.5rem; }
            main { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu-btn { display: block; }
            .header-content { gap: 1.5rem; }
            .logo { font-size: 1.8rem; }
            .logo i { font-size: 2rem; }
            .hero-image { height: 350px; }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .web-links-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
            .feature-card { padding: 1.5rem; }
            .web-links-section { padding: 2rem; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .container { padding: 0 1rem; }
            main { padding: 1.5rem; }
            .hero-image { height: 250px; }
            .breadcrumb ul { gap: 0.5rem; }
            .btn { width: 100%; text-align: center; }
            .rating-stars { font-size: 1.5rem; }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate {
            animation: fadeInUp 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .text-secondary { color: var(--secondary); }
        .mt-4 { margin-top: 4rem; }
        .mb-4 { margin-bottom: 4rem; }
        .p-3 { padding: 3rem; }
        .d-block { display: block; }
        .d-flex { display: flex; }
        .align-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .gap-2 { gap: 2rem; }