* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: #0056b3;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #003d82;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0033a0 0%, #0066cc 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: white;
        }
        .logo span {
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-links a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #666;
        }
        .breadcrumb a {
            color: #0056b3;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.5rem;
            color: #0033a0;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            color: #0066cc;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        h3 {
            font-size: 1.4rem;
            color: #333;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.1rem;
            color: #555;
            margin-top: 1.2rem;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1rem;
            border-left: 4px solid #ffcc00;
            margin: 1.5rem 0;
            font-style: italic;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }
        .form-group {
            margin-bottom: 1rem;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(to right, #0033a0, #0066cc);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        button:hover {
            background: linear-gradient(to right, #002a80, #0055aa);
        }
        footer {
            background-color: #1a1a1a;
            color: #ddd;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: #ffcc00;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #0033a0;
                padding: 1rem;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.5rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .comment-item {
            border-bottom: 1px solid #eee;
            padding: 1rem 0;
        }
        .comment-item:last-child {
            border-bottom: none;
        }