:root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #3498db;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --light-text: #ecf0f1;
            --border-color: #bdc3c7;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            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(--dark-text);
            background-color: #fff;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1a2530 100%);
            color: var(--light-text);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            letter-spacing: 1px;
            font-family: 'Georgia', serif;
        }
        .logo span {
            color: var(--secondary-color);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: var(--light-text);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            color: var(--secondary-color);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary-color);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: var(--primary-color);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            padding: 1rem 0;
        }
        .mobile-nav li {
            text-align: center;
            padding: 0.8rem 0;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 0.5rem;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--secondary-color);
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 0.8rem 1.5rem;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        .meta-info {
            display: flex;
            gap: 1.5rem;
            color: #7f8c8d;
            font-size: 0.95rem;
        }
        .meta-info i {
            margin-right: 0.5rem;
            color: var(--accent-color);
        }
        .article-body h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .article-body h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: #34495e;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-body strong {
            color: var(--secondary-color);
            font-weight: 700;
        }
        .article-body em {
            background: linear-gradient(transparent 60%, #ffeaa7 60%);
            font-style: italic;
            padding: 0 2px;
        }
        .highlight-box {
            background: var(--light-bg);
            border-left: 5px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            margin-top: 0.8rem;
            font-style: italic;
            color: #7f8c8d;
            font-size: 0.95rem;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .strategy-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.5rem;
            transition: var(--transition);
            box-shadow: 0 3px 5px rgba(0,0,0,0.05);
        }
        .strategy-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: var(--accent-color);
        }
        .strategy-card h4 {
            color: var(--primary-color);
            margin-bottom: 0.8rem;
            font-size: 1.3rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-color);
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-right: none;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-form button {
            background: var(--accent-color);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #2980b9;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #f1c40f;
            margin: 1rem 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
            margin: 0 0.1rem;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: var(--transition);
            margin-top: 1rem;
        }
        .rating-form button:hover {
            background: #c0392b;
        }
        .comment-form textarea {
            width: 100%;
            height: 120px;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            margin-bottom: 1rem;
        }
        .comment-form input {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-size: 1rem;
        }
        .comment-form button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: #1a2520;
        }
        .toc-widget ul {
            list-style: none;
            padding-left: 0;
        }
        .toc-widget li {
            margin-bottom: 0.8rem;
            padding-left: 0.5rem;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .toc-widget li:hover {
            border-left-color: var(--accent-color);
            padding-left: 1rem;
        }
        .toc-widget a {
            color: var(--dark-text);
            text-decoration: none;
            display: block;
            transition: var(--transition);
        }
        .toc-widget a:hover {
            color: var(--accent-color);
        }
        .footer-links {
            background: var(--light-bg);
            padding: 3rem 1.5rem;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .footer-links-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 3px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background: var(--primary-color);
            color: var(--light-text);
            padding: 2.5rem 1.5rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1.5rem;
        }
        .copyright {
            font-size: 0.95rem;
            color: #bdc3c7;
            line-height: 1.6;
        }
        .social-links {
            display: flex;
            gap: 1.5rem;
            font-size: 1.5rem;
        }
        .social-links a {
            color: var(--light-text);
            transition: var(--transition);
        }
        .social-links a:hover {
            color: var(--secondary-color);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.5rem;
            }
            .article-body h2 {
                font-size: 1.8rem;
            }
            .article-body h3 {
                font-size: 1.4rem;
            }
            .header-container, .breadcrumb-container, .main-container, .footer-links-container {
                padding: 0 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }