* {
            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: #f9f9f9;
            padding-top: 80px; 
        }
        a {
            text-decoration: none;
            color: #0066cc;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #004499;
        }
        ul, ol {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 1rem 2rem;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: white;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #ffcc00;
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            gap: 1.5rem;
        }
        .main-nav a {
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            font-weight: 500;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ffcc00;
        }
        .content-wrapper {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            overflow: hidden;
        }
        article {
            padding: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #0066cc;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 1.5rem;
            border-left: 4px solid #ffcc00;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .featured-image img {
            width: 100%;
            max-width: 800px;
            height: auto;
        }
        .interactive-section {
            background: #f5f5f5;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .interactive-section form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .interactive-section input, .interactive-section textarea, .interactive-section select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        .interactive-section button {
            padding: 0.8rem 1.5rem;
            background: #0066cc;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .interactive-section button:hover {
            background: #004499;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffcc00;
            cursor: pointer;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background: #e3f2fd;
            border-radius: 10px;
        }
        .link-list a {
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 6px;
            text-align: center;
            font-weight: 500;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        .link-list a:hover {
            background: #0066cc;
            color: white;
            transform: translateY(-2px);
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: #666;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #ccc;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 3rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffcc00;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            padding: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            text-align: center;
        }
        friend-link a {
            color: white;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #4a148c;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a237e;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem 2rem;
                box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .content-wrapper {
                padding: 0 1rem;
                margin: 1rem auto;
            }
            article {
                padding: 1.5rem;
            }
            .interactive-section {
                grid-template-columns: 1fr;
                padding: 1.5rem;
            }
        }
        .main-nav a, .link-list a, .interactive-section button {
            transition: all 0.3s ease;
        }
        .featured-image img {
            transition: transform 0.5s ease;
        }
        .featured-image img:hover {
            transform: scale(1.02);
        }
        .rating-stars i {
            transition: transform 0.2s ease;
        }