:root {
            --primary: #2E7D32;
            --primary-dark: #1B5E20;
            --secondary: #FF8F00;
            --accent: #C62828;
            --light: #F1F8E9;
            --dark: #1A1A1A;
            --grey: #757575;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --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: #f9f9f9;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        .my-logo a {
            color: inherit;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid #e0e0e0;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary);
        }
        .search-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--primary-dark);
        }
        .main-nav {
            background-color: var(--dark);
            padding: 0 20px;
        }
        .nav-list {
            display: flex;
            list-style: none;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            display: block;
            color: white;
            padding: 18px 22px;
            font-weight: 500;
        }
        .nav-list a:hover, .nav-list a.active {
            background-color: var(--primary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: var(--grey);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--grey);
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
            padding: 30px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border-radius: var(--radius);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 20px;
            font-size: 0.95rem;
            opacity: 0.9;
        }
        .article-meta i {
            margin-right: 8px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-content h2 {
            color: var(--primary-dark);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--light);
        }
        .article-content h3 {
            color: var(--primary);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        .article-content h4 {
            color: var(--grey);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 20px;
            padding-left: 30px;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .highlight-box {
            background-color: var(--light);
            border-left: 5px solid var(--secondary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .highlight-box p {
            margin-bottom: 0;
        }
        .tip {
            background-color: #E3F2FD;
            border-left: 5px solid #2196F3;
            padding: 20px;
            margin: 25px 0;
        }
        .warning {
            background-color: #FFEBEE;
            border-left: 5px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: translateY(-5px);
        }
        .caption {
            font-style: italic;
            color: var(--grey);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: var(--grey);
            text-align: center;
            padding: 30px;
            border-top: 2px dashed #ddd;
            border-bottom: 2px dashed #ddd;
            margin: 40px 0;
        }
        .author {
            font-weight: bold;
            margin-top: 15px;
            color: var(--primary);
        }
        .sidebar {
            background-color: white;
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-dark);
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
            font-size: 1.5rem;
        }
        .toc-list {
            list-style: none;
        }
        .toc-list li {
            margin-bottom: 12px;
        }
        .toc-list a {
            display: block;
            padding: 10px 15px;
            background-color: #f5f5f5;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .toc-list a:hover {
            background-color: var(--light);
            padding-left: 20px;
        }
        .related-links {
            margin-top: 40px;
        }
        .related-links a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid #eee;
            color: var(--dark);
        }
        .related-links a:hover {
            color: var(--primary);
            padding-left: 10px;
        }
        .interactive-module {
            background-color: #FFF8E1;
            border: 2px dashed var(--secondary);
            border-radius: var(--radius);
            padding: 30px;
            margin: 50px 0;
            text-align: center;
        }
        .module-title {
            color: var(--primary-dark);
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .rating-stars {
            margin: 20px 0;
            font-size: 2rem;
            color: #FFD700;
            cursor: pointer;
        }
        .rating-stars i {
            margin: 0 5px;
            transition: var(--transition);
        }
        .rating-stars i:hover, .rating-stars i.active {
            transform: scale(1.2);
            color: #FFC107;
        }
        .comment-form, .score-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 25px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            text-align: left;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-input, .form-textarea {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: var(--radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .site-footer {
            background-color: var(--dark);
            color: #ccc;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-section h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background-color: var(--secondary);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #aaa;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: var(--radius);
            margin: 15px 0;
            border-left: 4px solid var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                max-width: 100%;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .main-nav {
                display: none;
                padding: 0;
            }
            .nav-list {
                flex-direction: column;
            }
            .nav-list a {
                padding: 15px 20px;
                border-bottom: 1px solid #333;
            }
            .main-nav.active {
                display: block;
            }
            .article-content {
                padding: 25px;
            }
            .sidebar {
                position: static;
                top: 0;
            }
        }
        .bold {
            font-weight: 800;
            color: var(--primary-dark);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .last-updated {
            background-color: #E8F5E9;
            padding: 15px;
            border-radius: var(--radius);
            margin: 30px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }