* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #6a11cb;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #2575fc;
        }
        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, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #ff6b6b;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Arial Black', sans-serif;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        .my-logo:hover {
            color: #ff8e8e;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav ul li a {
            color: #e6e6e6;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background-color 0.3s, color 0.3s;
        }
        nav ul li a:hover {
            background-color: #6a11cb;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #fff;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #6a11cb;
        }
        .breadcrumb span {
            color: #6c757d;
        }
        main {
            padding: 2rem 0;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        article {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            color: #1a1a2e;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            margin-bottom: 1.5rem;
            color: #6a11cb;
            border-bottom: 3px solid #2575fc;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2575fc;
            margin-top: 2rem;
        }
        h3 {
            font-size: 1.6rem;
            color: #1a1a2e;
            margin-top: 1.5rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #495057;
            margin-top: 1.2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 1.5rem;
            border-left: 5px solid #ffeb3b;
            margin: 1.5rem 0;
            border-radius: 4px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
            padding: 1rem;
            background-color: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #dee2e6;
        }
        .image-container img {
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            margin: 0 auto;
        }
        .caption {
            font-style: italic;
            color: #6c757d;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .feature-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .feature {
            background: linear-gradient(145deg, #f0f0f0, #ffffff);
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature:hover {
            transform: translateY(-5px);
            box-shadow: 8px 8px 20px rgba(0, 0, 0, 0.15);
        }
        .feature h3 {
            color: #6a11cb;
            font-size: 1.4rem;
        }
        .interactive-section {
            background-color: #e9f7fe;
            padding: 2rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border: 1px solid #b3e0ff;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #1a1a2e;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #6a11cb;
            outline: none;
            box-shadow: 0 0 5px rgba(106, 17, 203, 0.3);
        }
        button {
            background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.3s ease, transform 0.2s;
        }
        button:hover {
            background: linear-gradient(90deg, #2575fc 0%, #6a11cb 100%);
            transform: scale(1.03);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffc107;
            cursor: pointer;
        }
        .rating-stars span:hover {
            color: #ff9800;
        }
        footer {
            background-color: #1a1a2e;
            color: #e6e6e6;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ff6b6b;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section ul li {
            margin-bottom: 0.7rem;
        }
        .footer-section ul li a {
            color: #b3b3cc;
        }
        .footer-section ul li a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            background-color: #16213e;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
        }
        friend-link h3 {
            color: #ff8e8e;
            margin-bottom: 1rem;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            list-style: none;
        }
        friend-link ul li a {
            color: #6a11cb;
            background-color: #fff;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        friend-link ul li a:hover {
            background-color: #6a11cb;
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3047;
            font-size: 0.9rem;
            color: #a0a0c0;
        }
        .last-updated {
            font-style: italic;
            color: #6c757d;
            text-align: center;
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #16213e;
                padding: 1rem;
                border-radius: 8px;
                margin-top: 1rem;
            }
            nav ul.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .feature-box {
                grid-template-columns: 1fr;
            }
            friend-link ul {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 15px;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }