:root {
            --primary-green: #4CAF50;
            --secondary-green: #388E3C;
            --accent-yellow: #FFD54F;
            --accent-brown: #8D6E63;
            --light-bg: #F9F9F9;
            --dark-text: #333333;
            --medium-text: #555;
            --border-color: #E0E0E0;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light-bg);
            color: var(--dark-text);
            line-height: 1.6;
            max-width: 100%;
            overflow-x: hidden;
        }
        .header {
            background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-yellow);
        }
        .my-logo span {
            background: rgba(255,255,255,0.15);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-left: 5px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-yellow);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent-yellow);
            bottom: 0;
            left: 0;
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: var(--secondary-green);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--medium-text);
            margin: 0 8px;
        }
        .search-container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        .search-box {
            display: flex;
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 600px;
            margin: 0 auto;
        }
        .search-box input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            outline: none;
            font-size: 1rem;
        }
        .search-box button {
            background: var(--secondary-green);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #2E7D32;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem 3rem;
        }
        .main-content {
            background: white;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--secondary-green);
            border-bottom: 2px solid var(--accent-yellow);
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li {
            margin-bottom: 0.8rem;
        }
        .sidebar-links a {
            color: var(--dark-text);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            padding: 0.5rem;
            border-radius: 4px;
        }
        .sidebar-links a:hover {
            background: #F5F5F5;
            color: var(--secondary-green);
            padding-left: 15px;
        }
        .sidebar-links i {
            color: var(--primary-green);
        }
        .article-header {
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--secondary-green);
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--medium-text);
            font-size: 0.9rem;
            align-items: center;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .meta-item i {
            color: var(--primary-green);
        }
        h2, h3, h4 {
            color: var(--secondary-green);
            margin: 2rem 0 1rem;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid var(--accent-yellow);
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.6rem;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--accent-brown);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255,213,79,0.2) 0%, rgba(255,213,79,0.05) 100%);
            border-left: 4px solid var(--accent-yellow);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: 600;
            color: var(--dark-text);
        }
        .inline-link {
            color: var(--secondary-green);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted currentColor;
            transition: var(--transition);
        }
        .inline-link:hover {
            color: #1B5E20;
            border-bottom-style: solid;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        .img-caption {
            font-style: italic;
            color: var(--medium-text);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .stat-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stat-item {
            background: #F0F7F0;
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid #C8E6C9;
        }
        .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary-green);
            display: block;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--medium-text);
        }
        .interaction-section {
            margin-top: 3rem;
            background: #F9F9F9;
            border-radius: var(--radius);
            padding: 2rem;
            border: 1px solid var(--border-color);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            color: #ddd;
            cursor: pointer;
            font-size: 1.8rem;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #FFC107;
        }
        .comment-form,
        .rating-form {
            display: grid;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark-text);
        }
        .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(76,175,80,0.2);
        }
        .btn {
            background: var(--primary-green);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            justify-self: start;
        }
        .btn:hover {
            background: var(--secondary-green);
            transform: translateY(-2px);
        }
        .footer {
            background: #2E2E2E;
            color: #ddd;
            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: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            color: white;
            text-decoration: none;
            font-weight: 700;
            display: block;
            margin-bottom: 1rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-yellow);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: var(--radius);
            border-left: 3px solid var(--primary-green);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
            max-width: 1400px;
            margin: 2rem auto 0;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                order: 3;
                width: 100%;
                margin-top: 1rem;
                display: none;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
                background: rgba(0,0,0,0.95);
                padding: 1rem;
                border-radius: var(--radius);
            }
            .main-nav li {
                margin-bottom: 0.5rem;
            }
            .mobile-toggle {
                display: block;
            }
            h1 {
                font-size: 2.2rem !important;
            }
            h2 {
                font-size: 1.8rem !important;
            }
        }
        @media (max-width: 576px) {
            .header, .breadcrumb, .container, .footer {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .main-content {
                padding: 1.5rem;
            }
            .article-header h1 {
                font-size: 1.8rem !important;
            }
            .stat-box {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            .header, .sidebar, .interaction-section, .footer, .breadcrumb, .search-container {
                display: none;
            }
            .container {
                grid-template-columns: 1fr;
                padding: 0;
            }
            .main-content {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black !important;
                text-decoration: underline;
            }
        }