* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #e0e0e0;
            background: #0d1b2a;
            background-image: radial-gradient(circle at 20% 30%, #1b2a41 0%, #0d1b2a 100%);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #4cc9f0;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #f72585;
        }
        ul, ol {
            list-style-position: inside;
            margin-left: 1rem;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: rgba(13, 27, 42, 0.95);
            border-bottom: 2px solid #4cc9f0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: #f72585;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 15px rgba(247, 37, 133, 0.7);
        }
        .logo a:hover {
            color: #4cc9f0;
        }
        .search-form {
            display: flex;
            align-items: center;
            background: #1b2a41;
            border-radius: 50px;
            padding: 0.5rem 1rem;
            border: 1px solid #4cc9f0;
        }
        .search-form input {
            background: transparent;
            border: none;
            color: #e0e0e0;
            padding: 0.5rem;
            width: 200px;
            outline: none;
        }
        .search-form button {
            background: #4cc9f0;
            border: none;
            color: #0d1b2a;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: #f72585;
        }
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
        }
        .nav-links a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background: #4cc9f0;
            color: #0d1b2a;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #4cc9f0;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #a0a0a0;
        }
        .breadcrumb a {
            color: #4cc9f0;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: rgba(27, 42, 65, 0.8);
            border-radius: 15px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 2rem;
        }
        h1, h2, h3, h4 {
            color: #4cc9f0;
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            border-bottom: 3px solid #f72585;
            padding-bottom: 0.5rem;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #f72585;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #f72585;
        }
        h4 {
            font-size: 1.4rem;
            color: #e0e0e0;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, #1b2a41, #4cc9f0);
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #f72585;
            margin: 1.5rem 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: bold;
            color: #0d1b2a;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
            position: relative;
        }
        .image-container img {
            border: 3px solid #4cc9f0;
            box-shadow: 0 5px 15px rgba(76, 201, 240, 0.5);
            transition: transform 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: #a0a0a0;
            margin-top: 0.5rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-list a {
            display: block;
            background: #1b2a41;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #4cc9f0;
            text-align: center;
            transition: all 0.3s ease;
        }
        .link-list a:hover {
            background: #4cc9f0;
            color: #0d1b2a;
            transform: translateY(-5px);
        }
        .user-interaction {
            background: rgba(13, 27, 42, 0.9);
            border-radius: 15px;
            padding: 2rem;
            margin: 2rem 0;
            border: 2px solid #f72585;
        }
        .interaction-title {
            color: #f72585;
            text-align: center;
            margin-bottom: 1.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        form input, form textarea, form select {
            padding: 0.8rem;
            border-radius: 8px;
            border: 1px solid #4cc9f0;
            background: #1b2a41;
            color: #e0e0e0;
            font-size: 1rem;
        }
        form button {
            background: linear-gradient(90deg, #4cc9f0, #f72585);
            color: #0d1b2a;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        form button:hover {
            transform: scale(1.05);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #a0a0a0;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        footer {
            background: #0a1520;
            color: #a0a0a0;
            padding: 2rem 0;
            border-top: 2px solid #4cc9f0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #4cc9f0;
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .friend-links a {
            color: #e0e0e0;
            padding: 0.5rem;
            border-radius: 5px;
            background: #1b2a41;
            transition: all 0.3s ease;
        }
        .friend-links a:hover {
            background: #4cc9f0;
            color: #0d1b2a;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #1b2a41;
            margin-top: 2rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(13, 27, 42, 0.98);
                padding: 1rem;
                border-top: 2px solid #4cc9f0;
            }
            .nav-links.active {
                display: flex;
            }
            .header-top {
                flex-direction: column;
                gap: 1rem;
            }
            .search-form input {
                width: 150px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            article {
                padding: 1.5rem;
            }
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: #a0a0a0;
            margin-bottom: 1rem;
        }
        .pyramid {
            border-left: 3px solid #f72585;
            padding-left: 1rem;
            margin: 1.5rem 0;
        }