:root {
            --primary-color: #4a6fa5;
            --secondary-color: #e67e22;
            --accent-color: #16a085;
            --text-dark: #2c3e50;
            --text-light: #7f8c8d;
            --bg-light: #f9f9f9;
            --bg-white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 10px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            font-size: 18px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: var(--radius);
        }
        nav a:hover, nav a.active {
            background-color: var(--primary-color);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: var(--text-light);
            background-color: #f1f8ff;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #2c3e50);
            padding: 40px 0;
            text-align: center;
            color: white;
            border-radius: var(--radius);
            margin-bottom: 40px;
        }
        .search-section h2 {
            font-size: 2.2rem;
            margin-bottom: 20px;
        }
        .search-form {
            max-width: 700px;
            margin: 0 auto;
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #d35400;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 50px;
        }
        article {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            line-height: 1.2;
        }
        article h2 {
            font-size: 2rem;
            color: var(--accent-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #eee;
        }
        article h3 {
            font-size: 1.6rem;
            color: var(--secondary-color);
            margin: 30px 0 15px;
        }
        article p {
            margin-bottom: 25px;
            text-align: justify;
        }
        article emoji {
            font-size: 1.4em;
            margin-right: 8px;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .img-container {
            text-align: center;
            margin: 35px 0;
        }
        .img-container img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .img-caption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        aside {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .rating-form label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            margin-bottom: 15px;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
            margin-right: 5px;
        }
        .stars input:checked ~ label,
        .stars label:hover,
        .stars label:hover ~ label {
            color: #ffc107;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.2);
        }
        .btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: var(--radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
            text-decoration: none;
        }
        .btn:hover {
            background-color: #3a5a8a;
            transform: translateY(-3px);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #d35400;
        }
        .comments-section {
            margin-top: 50px;
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .comment {
            padding: 25px;
            border-bottom: 1px solid #eee;
            margin-bottom: 25px;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: #ffc107;
            margin-bottom: 10px;
        }
        .longtail-links {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        .longtail-links h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 30px;
            text-align: center;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: #f8f9fa;
            padding: 18px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e9ecef;
            transform: translateX(5px);
        }
        .web-link a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary-color);
        }
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 50px 0 30px;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .footer-logo {
            font-size: 2.5rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px solid #4a6278;
            width: 100%;
            font-size: 0.95rem;
            color: #bdc3c7;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--bg-white);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                box-shadow: var(--shadow);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--radius);
                margin-bottom: 15px;
            }
            .search-btn {
                border-radius: var(--radius);
                padding: 18px;
            }
            .links-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
        }