:root {
            --primary: #1e3a8a; 
            --secondary: #dc2626; 
            --accent: #fbbf24; 
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .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-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            color: var(--secondary);
        }
        .main-nav {
            display: flex;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            position: relative;
            padding: 5px 0;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb span {
            color: var(--dark);
            font-weight: 500;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), #2563eb);
            padding: 40px 0;
            color: white;
            text-align: center;
        }
        .search-section h2 {
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex: 1;
            padding: 15px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background-color: var(--accent);
            color: var(--dark);
            border: none;
            padding: 0 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #f59e0b;
        }
        .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;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            gap: 20px;
            color: var(--gray);
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #e2e8f0;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .article-body h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .article-body h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 30px 0 15px;
        }
        .article-body p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary);
            font-weight: 700;
        }
        .article-body em {
            color: var(--secondary);
            font-style: italic;
        }
        .highlight-box {
            background-color: #f0f9ff;
            border-left: 4px solid var(--primary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-image {
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 10px;
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--gray);
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #d1d5db;
            margin-bottom: 15px;
            cursor: pointer;
        }
        .stars .active {
            color: var(--accent);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-form input,
        .rating-form textarea {
            padding: 12px;
            border: 1px solid #cbd5e1;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 0.95rem;
        }
        .rating-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 12px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: #1e40af;
        }
        .comments-section {
            margin-top: 50px;
        }
        .comments-section h2 {
            color: var(--primary);
            margin-bottom: 30px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .comment-form {
            background-color: #f8fafc;
            padding: 30px;
            border-radius: var(--border-radius);
            margin-bottom: 40px;
        }
        .comment-form h3 {
            color: var(--dark);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #cbd5e1;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        .submit-btn {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: var(--border-radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #b91c1c;
        }
        .comment-list {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .comment {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            border-left: 4px solid var(--primary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e2e8f0;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .footer-links {
            background-color: #1e293b;
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .web-link {
            display: inline-block;
            margin: 0 15px 20px 0;
        }
        .web-link a {
            color: #cbd5e1;
            background-color: #334155;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .web-link a:hover {
            background-color: var(--secondary);
            color: white;
        }
        .footer-links .container {
            text-align: center;
        }
        .site-footer {
            background-color: var(--dark);
            color: #cbd5e1;
            padding: 40px 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .copyright {
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .mobile-toggle {
                display: block;
            }
            .article-content {
                padding: 25px;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 10px;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: 0;
            }
            .search-input {
                border-radius: var(--border-radius) var(--border-radius) 0 0;
            }
            .search-btn {
                border-radius: 0 0 var(--border-radius) var(--border-radius);
                padding: 15px;
            }
        }
        .btn-hover {
            position: relative;
            overflow: hidden;
        }
        .btn-hover:after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 5px;
            height: 5px;
            background: rgba(255, 255, 255, 0.5);
            opacity: 0;
            border-radius: 100%;
            transform: scale(1, 1) translate(-50%);
            transform-origin: 50% 50%;
        }
        .btn-hover:focus:not(:active)::after {
            animation: ripple 1s ease-out;
        }
        @keyframes ripple {
            0% {
                transform: scale(0, 0);
                opacity: 0.5;
            }
            100% {
                transform: scale(20, 20);
                opacity: 0;
            }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }