:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --secondary: #f59e0b;
            --accent: #10b981;
            --dark: #1f2937;
            --light: #f9fafb;
            --gray: #9ca3af;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: 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;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .search-box {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid var(--gray);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--dark);
        }
        .main-nav {
            background: var(--dark);
        }
        .nav-list {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            color: white;
            padding: 16px 20px;
            display: block;
            font-weight: 500;
        }
        .nav-list a:hover, .nav-list a.active {
            background: var(--primary);
            color: white;
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1f5f9;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 8px;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 30px;
            border-bottom: 2px solid var(--light);
            padding-bottom: 20px;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 10px;
        }
        .meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 15px;
        }
        .article-body h2 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin: 30px 0 15px;
            padding-bottom: 8px;
            border-bottom: 1px dashed #e5e7eb;
        }
        .article-body h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 25px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e0f2fe, #fef3c7);
            border-left: 4px solid var(--secondary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 0 auto 10px;
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 8px;
        }
        .interactive-forms {
            background: #f8fafc;
            padding: 25px;
            border-radius: var(--radius);
            margin: 40px 0;
            border: 1px solid #e2e8f0;
        }
        .form-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
        }
        .rating-stars i {
            color: #d1d5db;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .rating-stars i:hover, .rating-stars i.active {
            color: var(--secondary);
        }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #d1d5db;
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
        }
        button[type="submit"] {
            background: var(--accent);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        button[type="submit"]:hover {
            background: #059669;
        }
        .comment-list {
            margin-top: 30px;
        }
        .comment-item {
            background: white;
            padding: 20px;
            border-radius: var(--radius);
            margin-bottom: 20px;
            border-left: 3px solid var(--primary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary-dark);
        }
        .comment-date {
            color: var(--gray);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        .popular-links {
            list-style: none;
        }
        .popular-links li {
            margin-bottom: 12px;
        }
        .popular-links a {
            display: block;
            padding: 12px;
            background: #f8fafc;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .popular-links a:hover {
            background: var(--primary);
            color: white;
            transform: translateX(5px);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius);
        }
        .cta-box h3 {
            margin-bottom: 15px;
            font-size: 1.4rem;
        }
        .web-links-section {
            background: #1e293b;
            color: white;
            padding: 40px 0;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            display: block;
            color: #cbd5e1;
        }
        .web-link a:hover {
            color: white;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 15px;
            display: block;
        }
        .footer-nav {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-nav a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: var(--dark);
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            .nav-list.active {
                left: 0;
            }
            .nav-list a {
                padding: 15px 20px;
                border-bottom: 1px solid #374151;
            }
            .header-top {
                flex-wrap: wrap;
                gap: 15px;
            }
            .search-box {
                order: 3;
                max-width: 100%;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: 20px 0;
            }
            .article-content {
                padding: 20px;
            }
        }