* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0a0f2b;
            color: #e0e0ff;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            background-image: radial-gradient(circle at 20% 30%, rgba(30, 60, 150, 0.15) 0%, transparent 20%),
                              radial-gradient(circle at 80% 80%, rgba(120, 30, 100, 0.1) 0%, transparent 20%);
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #74c0fc;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0d1b4c 0%, #1a0933 100%);
            border-bottom: 3px solid #ff6b00;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a.my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff6b00, #ffa94d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo a.my-logo i {
            margin-right: 10px;
            color: #ff6b00;
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav.desktop-nav a {
            color: #b3ccff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        nav.desktop-nav a:hover {
            background-color: rgba(255, 107, 0, 0.2);
            color: #ffd8b5;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #ffa94d;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #0d1b4c;
            border-top: 1px solid #2a3a6b;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            padding: 1rem;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-radius: 5px;
            color: #b3ccff;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 107, 0, 0.2);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #8a9bb2;
        }
        .breadcrumb a {
            color: #8a9bb2;
        }
        .breadcrumb a:hover {
            color: #ffa94d;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background-color: rgba(16, 22, 58, 0.85);
            border-radius: 15px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2a3a6b;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffa94d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            text-shadow: 0 2px 5px rgba(0,0,0,0.5);
        }
        h2 {
            font-size: 2rem;
            color: #4dabf7;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #3a4a8a;
        }
        h3 {
            font-size: 1.6rem;
            color: #74c0fc;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #a5d8ff;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        strong {
            color: #ffd8b5;
            font-weight: 700;
        }
        .article-meta {
            text-align: center;
            color: #8a9bb2;
            font-style: italic;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #2a3a6b;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(30, 60, 150, 0.3), rgba(120, 30, 100, 0.2));
            border-left: 5px solid #ff6b00;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            width: 80%;
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #3a4a8a;
            box-shadow: 0 8px 20px rgba(0,0,0,0.6);
        }
        .feature-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .feature-img img:hover {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-size: 0.9rem;
            color: #8a9bb2;
            margin-top: 0.5rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .card {
            background-color: rgba(26, 34, 70, 0.8);
            border-radius: 10px;
            padding: 1.5rem;
            border: 1px solid #3a4a8a;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(255, 107, 0, 0.2);
            border-color: #ff6b00;
        }
        .card h3 {
            color: #ffa94d;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border-radius: 5px;
            border: 1px solid #3a4a8a;
            background-color: rgba(16, 22, 58, 0.8);
            color: #e0e0ff;
            font-size: 1rem;
        }
        button, .btn {
            background: linear-gradient(90deg, #ff6b00, #ff8e3c);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            text-align: center;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: linear-gradient(90deg, #ff8e3c, #ff6b00);
            box-shadow: 0 5px 15px rgba(255, 107, 0, 0.4);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.5rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffd700;
        }
        footer {
            background: linear-gradient(135deg, #0a0f2b, #1a0933);
            border-top: 3px solid #2a3a6b;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffa94d;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3a6b;
            color: #8a9bb2;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav.desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }