:root {
            --primary: #8B4513;
            --secondary: #D2691E;
            --accent: #F4A460;
            --light: #FAEBD7;
            --dark: #5D2906;
            --text: #333333;
            --text-light: #666666;
            --white: #FFFFFF;
            --gray: #F5F5F5;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --container-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--white);
            overflow-x: hidden;
        }
        .header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: var(--white);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 700;
            text-decoration: none;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent);
        }
        .logo:hover {
            color: var(--accent);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--accent);
            color: var(--dark);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--primary);
            flex-direction: column;
            padding: 1rem;
            display: none;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile .nav-link {
            width: 100%;
            text-align: center;
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--gray);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .main-content {
            padding: 3rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-container {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .article-header {
            padding: 2rem;
            border-bottom: 3px solid var(--accent);
        }
        .article-title {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 2rem;
            }
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
            color: var(--secondary);
        }
        .article-body {
            padding: 2rem;
        }
        .article-section {
            margin-bottom: 3rem;
        }
        .article-section h2 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--accent);
        }
        .article-section h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin: 1.5rem 0 1rem;
        }
        .article-section p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(to right, var(--light), #fff5e6);
            border-left: 4px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-box h4 {
            color: var(--dark);
            margin-bottom: 0.5rem;
            font-size: 1.2rem;
        }
        .term {
            font-weight: bold;
            color: var(--primary);
        }
        .strategy-tip {
            background-color: var(--gray);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0;
            position: relative;
        }
        .strategy-tip::before {
            content: "💡";
            position: absolute;
            left: -10px;
            top: -10px;
            font-size: 1.5rem;
            background: var(--white);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--light);
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary);
            color: var(--white);
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: var(--secondary);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        .rating-form {
            display: none;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .rating-form.active {
            display: flex;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-submit {
            background-color: var(--primary);
            color: var(--white);
            border: none;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .form-submit:hover {
            background-color: var(--secondary);
        }
        .comment {
            border-bottom: 1px solid var(--gray);
            padding: 1rem 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.85rem;
        }
        .comment-rating {
            color: #FFD700;
            margin-bottom: 0.5rem;
        }
        .interactive-board {
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%238B4513"/><path d="M0,50 L100,50 M50,0 L50,100" stroke="%235D2906" stroke-width="2"/>') repeat;
            background-size: 100px 100px;
            height: 300px;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
            border: 3px solid var(--dark);
        }
        .checker {
            position: absolute;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 2px solid #000;
            transition: var(--transition);
            cursor: pointer;
        }
        .checker.light {
            background: radial-gradient(circle at 30% 30%, #FFF, #CCC);
        }
        .checker.dark {
            background: radial-gradient(circle at 30% 30%, #000, #333);
        }
        .checker:hover {
            transform: scale(1.1);
            box-shadow: 0 0 10px rgba(0,0,0,0.5);
        }
        .footer-links {
            background-color: var(--light);
            padding: 3rem 0;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background: var(--white);
            padding: 1.2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.15);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        .footer {
            background: linear-gradient(135deg, var(--dark), #3a1a02);
            color: var(--white);
            padding: 3rem 0 1.5rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--accent);
        }
        .footer-links-list {
            list-style: none;
        }
        .footer-links-list li {
            margin-bottom: 0.8rem;
        }
        .footer-links-list a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links-list a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }
        .bold { font-weight: 700; color: var(--primary); }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.4rem; border-radius: 3px; }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        .pulse {
            animation: pulse 2s infinite;
        }