* {
            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;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            text-decoration: none;
            color: #ffeb3b;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .breadcrumb {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ffeb3b;
            text-decoration: none;
        }
        main {
            background: white;
            padding: 2rem;
            margin: 2rem auto;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        h1 {
            color: #1a237e;
            margin-bottom: 1rem;
            font-size: 2.5rem;
            border-bottom: 3px solid #ff9800;
            padding-bottom: 0.5rem;
        }
        h2 {
            color: #4a148c;
            margin: 1.5rem 0 1rem;
            font-size: 2rem;
        }
        h3 {
            color: #6a1b9a;
            margin: 1.2rem 0 0.8rem;
            font-size: 1.5rem;
        }
        h4 {
            color: #8e24aa;
            margin: 1rem 0 0.6rem;
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background: #fff9c4;
            padding: 1rem;
            border-left: 4px solid #ff9800;
            margin: 1.5rem 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 1.5rem auto;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        img:hover {
            transform: scale(1.02);
        }
        .interactive-section {
            margin: 2rem 0;
            padding: 1.5rem;
            background: #e3f2fd;
            border-radius: 8px;
        }
        form {
            display: grid;
            gap: 1rem;
            max-width: 600px;
        }
        input, textarea, select {
            padding: 0.75rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            padding: 0.75rem 1.5rem;
            background: #1a237e;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        button:hover {
            background: #4a148c;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }
        .rating i {
            color: #ffc107;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }
        .rating i:hover {
            color: #ff9800;
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #666;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        .friend-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .friend-links a {
            color: #ffeb3b;
            text-decoration: none;
            padding: 0.5rem;
            border: 1px solid #ffeb3b;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .friend-links a:hover {
            background: #ffeb3b;
            color: #1a237e;
        }
        .copyright {
            font-size: 0.9rem;
            color: #ccc;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: flex-start;
            }
            .hamburger {
                display: block;
                align-self: flex-end;
                margin-top: -2.5rem;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
            }
            nav ul.active {
                display: flex;
            }
            nav a {
                display: block;
                text-align: center;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .interactive-section {
                padding: 1rem;
            }
            .friend-links {
                flex-direction: column;
                align-items: center;
            }
        }
        .content-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .card {
            background: #f5f5f5;
            padding: 1.5rem;
            border-radius: 8px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
        }