:root {
            --primary: #1a237e;
            --primary-light: #534bae;
            --primary-dark: #000051;
            --secondary: #ff3d00;
            --secondary-light: #ff7539;
            --dark: #121212;
            --light: #f5f5f7;
            --gray: #333;
            --gray-light: #666;
            --max-width: 1200px;
            --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Georgia', serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.8;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--secondary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--primary);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            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;
        }
        .my-logo {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, #ff3d00, #ffab40);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .my-logo:hover {
            text-shadow: 0 0 15px rgba(255, 61, 0, 0.5);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 1.1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            border-bottom: 1px solid #ddd;
            font-family: var(--font-heading);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child):after {
            content: '/';
            margin: 0 10px;
            color: var(--gray-light);
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: var(--secondary-light);
        }
        .main-content {
            padding: 3rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .article-header h1 {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: var(--gray-light);
            font-family: var(--font-heading);
            margin-bottom: 1rem;
            font-size: 0.95rem;
        }
        .last-updated {
            background-color: #e3f2fd;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            display: inline-block;
            margin-top: 1rem;
        }
        .article-body {
            font-size: 1.15rem;
            max-width: 900px;
            margin: 0 auto;
        }
        .article-body h2, .article-body h3, .article-body h4 {
            font-family: var(--font-heading);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: var(--primary-dark);
        }
        .article-body h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        .article-body h3 {
            font-size: 1.8rem;
        }
        .article-body h4 {
            font-size: 1.5rem;
        }
        .article-body p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .article-body blockquote {
            border-left: 5px solid var(--secondary);
            padding-left: 2rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            background-color: #f9f9f9;
            padding-top: 1rem;
            padding-bottom: 1rem;
        }
        .article-body em {
            color: var(--primary);
            font-style: italic;
        }
        .article-body strong {
            color: var(--secondary);
            font-weight: 700;
        }
        .img-container {
            margin: 3rem auto;
            text-align: center;
        }
        .img-container img {
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            max-height: 500px;
            object-fit: cover;
        }
        .img-caption {
            font-style: italic;
            color: var(--gray-light);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .link-list {
            background-color: #f0f4ff;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1rem;
        }
        .link-list li {
            padding: 0.8rem;
            border-left: 4px solid var(--primary-light);
            background: white;
            border-radius: 0 5px 5px 0;
        }
        .user-interaction {
            max-width: 900px;
            margin: 4rem auto;
            padding: 2rem;
            background-color: #f8f9fa;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
        }
        .user-interaction h2 {
            text-align: center;
            color: var(--primary);
        }
        .rating-form, .comment-form {
            margin-top: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            font-family: var(--font-heading);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: var(--font-body);
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #ddd;
            margin: 1rem 0;
            justify-content: center;
        }
        .stars .star {
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffc107;
        }
        .submit-btn {
            background: linear-gradient(to right, var(--primary), var(--primary-light));
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: block;
            margin: 2rem auto 0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(26, 35, 126, 0.3);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .footer-links h3, .friend-links h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #ffab40;
        }
        .footer-links ul, friend-links {
            list-style: none;
        }
        .footer-links li, friend-link {
            margin-bottom: 0.8rem;
        }
        .footer-links a, friend-link a {
            color: #ccc;
        }
        .footer-links a:hover, friend-link a:hover {
            color: white;
            padding-left: 5px;
            transition: all 0.3s;
        }
        friend-links {
            display: block;
            margin-top: 2rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 5px;
            margin-bottom: 0.8rem;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-nav ul {
                gap: 1rem;
            }
            .article-header h1 {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background-color: var(--primary-dark);
                width: 100%;
                text-align: center;
                padding: 2rem 0;
                gap: 1.5rem;
                transition: right 0.5s ease;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
            }
            .main-nav ul.active {
                right: 0;
            }
            .article-header h1 {
                font-size: 2.3rem;
            }
            .article-body h2 {
                font-size: 1.9rem;
            }
            .header-container, .footer-container {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input, .search-button {
                width: 100%;
                border-radius: 0;
                padding: 1rem;
            }
            .user-interaction {
                padding: 1.5rem;
            }
        }