* {
            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;
        }
        a {
            text-decoration: none;
            color: #3498db;
        }
        a:hover {
            color: #2980b9;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #ffcc00;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo:hover {
            color: #ffdd44;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 1.5rem;
        }
        nav ul li a {
            color: white;
            font-weight: 500;
            padding: 0.5rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        nav ul li a:hover {
            background: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1a237e;
                padding: 1rem;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 0.5rem 0;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e3f2fd;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #1a237e;
        }
        main {
            padding: 2rem 0;
            background: white;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            text-align: center;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            border-left: 5px solid #ffcc00;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #6a1b9a;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #8e24aa;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .featured-image img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .form-section {
            background: #f5f5f5;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
        }
        button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        button:hover {
            background: #2980b9;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffcc00;
        }
        .rating input:checked ~ label {
            color: #ffcc00;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: #ffcc00;
            font-weight: bold;
        }
        friend-link:hover {
            color: #ffdd44;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #ccc;
        }
        .text-center {
            text-align: center;
        }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }