:root {
            --primary-green: #2ecc71;
            --secondary-blue: #3498db;
            --accent-orange: #e67e22;
            --dark-bg: #2c3e50;
            --light-bg: #ecf0f1;
            --text-dark: #2c3e50;
            --text-light: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .header {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 1rem 2rem;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-green);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo:hover {
            color: var(--accent-orange);
            transform: scale(1.05);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .nav-desktop a:hover {
            background-color: var(--primary-green);
            color: var(--dark-bg);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-green);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark-bg);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:hover {
            background-color: var(--primary-green);
            color: var(--dark-bg);
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 1rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: var(--secondary-blue);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--accent-orange);
        }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        @media (max-width: 1024px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: var(--dark-bg);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--secondary-blue);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary-green);
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: var(--accent-orange);
            margin: 1.5rem 0 0.8rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-content strong {
            color: var(--dark-bg);
            background-color: rgba(46, 204, 113, 0.1);
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
        }
        .highlight {
            background-color: #fff3cd;
            border-left: 5px solid var(--accent-orange);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
        }
        .feature-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-img:hover {
            transform: translateY(-5px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background-color: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--dark-bg);
            margin-bottom: 1rem;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .widget h3 i {
            color: var(--primary-green);
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .search-form input, .comment-form textarea, .comment-form input, .rating-form select {
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus, .comment-form textarea:focus, .comment-form input:focus, .rating-form select:focus {
            border-color: var(--primary-green);
            outline: none;
        }
        .btn {
            padding: 0.8rem 1.5rem;
            background-color: var(--primary-green);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background-color: var(--accent-orange);
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffc107;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h4 {
            font-size: 1.5rem;
            color: var(--primary-green);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-section h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background-color: var(--accent-orange);
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #ddd;
            padding: 0.5rem;
            border-radius: 4px;
            display: block;
        }
        friend-link a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--primary-green);
            padding-left: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0.5rem 1rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .main-container {
                padding: 0 1rem;
                grid-template-columns: 1fr;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .breadcrumb {
                padding: 1rem;
            }
        }