* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 4px solid #3498db;
            padding-bottom: 0.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2980b9;
            border-left: 5px solid #e74c3c;
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.6rem;
            color: #16a085;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        a {
            color: #3498db;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #f1c40f;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #e74c3c;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .desktop-nav a:hover {
            background-color: rgba(255,255,255,0.1);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #2c3e50;
            flex-direction: column;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
            width: 100%;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            color: white;
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
        }
        .mobile-nav a:hover {
            background-color: #3498db;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 1rem;
            border-radius: 5px;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb a:hover {
            color: #3498db;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #95a5a6;
        }
        .search-section {
            background: linear-gradient(to right, #3498db, #2ecc71);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
            color: white;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem;
            border: none;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #e74c3c;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background-color: #c0392b;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #2c3e50;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #ecf0f1;
        }
        .sidebar a {
            color: #2c3e50;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar a:hover {
            color: #e74c3c;
        }
        .article-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9e6 0%, #ffeaa7 100%);
            border-left: 5px solid #f1c40f;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .highlight-box h4 {
            color: #d35400;
            margin-top: 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .user-interaction {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
        }
        .interaction-tabs {
            display: flex;
            border-bottom: 2px solid #ecf0f1;
            margin-bottom: 2rem;
        }
        .tab-button {
            padding: 1rem 2rem;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            color: #7f8c8d;
            border-bottom: 3px solid transparent;
            transition: all 0.3s;
        }
        .tab-button.active {
            color: #3498db;
            border-bottom: 3px solid #3498db;
        }
        .tab-content {
            display: none;
        }
        .tab-content.active {
            display: block;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ddd;
            margin: 0.5rem 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f1c40f;
        }
        .submit-btn {
            background: linear-gradient(to right, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            align-self: flex-start;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #27ae60, #219653);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
        }
        .long-tail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.12);
        }
        .web-link a {
            color: #2c3e50;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: #e74c3c;
            text-decoration: none;
        }
        footer {
            background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #f1c40f;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #bdc3c7;
        }
        .footer-section a:hover {
            color: #3498db;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 5px;
                margin-bottom: 10px;
            }
            .search-form button {
                border-radius: 5px;
                padding: 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .interaction-tabs {
                flex-direction: column;
            }
            .tab-button {
                border-bottom: 1px solid #ecf0f1;
                text-align: left;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .logo a {
                font-size: 1.7rem;
            }
            .long-tail-links {
                grid-template-columns: 1fr;
            }
        }