* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #0a1d3e 0%, #1a2b4e 100%);
            color: #f0f8ff;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #29b6f6;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1e88e5;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #00e5ff, #2979ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .logo a:hover {
            transform: none;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 16px;
            border-radius: 8px;
        }
        nav a:hover {
            background: rgba(33, 150, 243, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #00e5ff;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: #b0bec5;
        }
        .breadcrumb a {
            color: #b0bec5;
        }
        .breadcrumb a:hover {
            color: #4fc3f7;
        }
        main {
            flex: 1;
            padding: 30px 0 60px;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding: 30px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            border-left: 6px solid #00e5ff;
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            color: #e3f2fd;
            text-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }
        .article-meta {
            color: #81d4fa;
            font-size: 1.1rem;
            display: flex;
            justify-content: center;
            gap: 25px;
            flex-wrap: wrap;
        }
        .content-section {
            margin-bottom: 60px;
            padding: 30px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 18px;
            border: 1px solid rgba(100, 150, 255, 0.1);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .content-section:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 100, 255, 0.2);
            border-color: rgba(0, 229, 255, 0.3);
        }
        h2 {
            font-size: 2.5rem;
            color: #80d8ff;
            margin-bottom: 25px;
            border-bottom: 3px solid #00b0ff;
            padding-bottom: 12px;
        }
        h3 {
            font-size: 1.9rem;
            color: #29b6f6;
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.2rem;
            text-align: justify;
            color: #e1f5fe;
        }
        .highlight {
            background: rgba(0, 229, 255, 0.1);
            padding: 25px;
            border-radius: 12px;
            border-left: 5px solid #00e5ff;
            margin: 30px 0;
        }
        .highlight strong {
            color: #00e5ff;
            font-size: 1.3rem;
        }
        .related-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .link-card {
            background: rgba(30, 136, 229, 0.1);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .link-card:hover {
            background: rgba(30, 136, 229, 0.25);
            transform: scale(1.05);
        }
        .interactive-box {
            background: rgba(20, 30, 48, 0.9);
            border-radius: 16px;
            padding: 30px;
            margin: 40px 0;
            border: 2px solid #1e88e5;
        }
        .interactive-box h3 {
            color: #00e5ff;
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        input, textarea, select {
            padding: 15px;
            border-radius: 10px;
            border: 2px solid #2962ff;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1.1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00e5ff;
            box-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
        }
        button {
            padding: 16px 30px;
            background: linear-gradient(90deg, #00e5ff, #2962ff);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        button:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(41, 98, 255, 0.6);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
        }
        .rating i {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.3s, transform 0.3s;
        }
        .rating i:hover,
        .rating i.active {
            color: #ffeb3b;
            transform: scale(1.2);
        }
        .feature-image {
            margin: 40px auto;
            text-align: center;
            max-width: 900px;
        }
        .feature-image figcaption {
            font-style: italic;
            color: #90caf9;
            margin-top: 15px;
        }
        footer {
            background: rgba(5, 15, 30, 0.98);
            padding: 50px 0 30px;
            border-top: 2px solid #1e88e5;
            margin-top: auto;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-section h4 {
            font-size: 1.5rem;
            color: #00e5ff;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-section h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background: #00e5ff;
        }
        friend-link {
            display: block;
            margin-bottom: 15px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #444;
            color: #90a4ae;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2.2rem; }
            nav ul { gap: 15px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(10, 25, 47, 0.98);
                padding: 20px;
                border-top: 2px solid #1e88e5;
            }
            nav ul.active { display: flex; }
            .header-container { position: relative; }
            .article-meta { flex-direction: column; gap: 10px; }
            .content-section { padding: 20px; }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.9rem; }
            .container { padding: 0 15px; }
            .interactive-box { padding: 20px; }
        }