:root {
            --primary: #1a6aff;
            --primary-dark: #0052cc;
            --secondary: #ff6b1a;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --border-radius: 12px;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            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-color: var(--dark);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--secondary);
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: width 0.3s;
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .nav-mobile {
            display: none;
            background-color: var(--dark);
            padding: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            display: block;
            padding: 12px 15px;
            border-radius: 8px;
            font-weight: 600;
            background-color: rgba(255,255,255,0.05);
        }
        .nav-mobile a:hover {
            background-color: rgba(255,107,26,0.2);
            color: var(--secondary);
        }
        .breadcrumb {
            background-color: #f1f5f9;
            padding: 12px 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        .hero {
            padding: 60px 0;
            background: linear-gradient(135deg, #f5f7ff 0%, #e3e9ff 100%);
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .search-box {
            max-width: 700px;
            margin: 40px auto;
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .search-box h2 {
            margin-bottom: 20px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: center;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 50px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2, .article-content h3 {
            margin-top: 2.5em;
            margin-bottom: 0.8em;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        .article-content h2 {
            font-size: 2.2rem;
        }
        .article-content h3 {
            font-size: 1.7rem;
        }
        .article-content p {
            margin-bottom: 1.8em;
            text-align: justify;
            color: #444;
        }
        .article-content .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--secondary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .article-content .highlight p {
            margin-bottom: 0;
            font-weight: 600;
        }
        .article-content ul, .article-content ol {
            margin-left: 25px;
            margin-bottom: 1.8em;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .featured-image {
            margin: 40px 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            padding: 15px;
            background-color: #f8f9fa;
            font-size: 0.95rem;
            color: var(--gray);
            text-align: center;
        }
        .internal-links {
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 40px 0;
        }
        .internal-links h4 {
            margin-bottom: 15px;
            color: var(--dark);
        }
        .internal-links ul {
            list-style: none;
            margin-left: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .internal-links li a {
            display: block;
            padding: 10px 20px;
            background-color: white;
            border-radius: 50px;
            border: 1px solid #dee2e6;
            font-weight: 500;
        }
        .internal-links li a:hover {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--dark);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
            direction: rtl; 
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: #ffc107;
        }
        .rating-widget button {
            background-color: var(--success);
            color: white;
            border: none;
            padding: 12px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background-color: #218838;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #dee2e6;
            border-radius: var(--border-radius);
            margin-bottom: 15px;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
        }
        .comment-form button:hover {
            background-color: var(--primary-dark);
        }
        .footer-links {
            background-color: #f8f9fa;
            padding: 50px 0;
            border-top: 1px solid #dee2e6;
            border-bottom: 1px solid #dee2e6;
        }
        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 25px;
        }
        .web-link {
            background-color: white;
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--dark);
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        .site-footer {
            background-color: var(--dark);
            color: #b0b7c3;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #8a94a6;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
                padding: 15px;
            }
            .article-content h2 {
                font-size: 1.9rem;
            }
            .article-content h3 {
                font-size: 1.5rem;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
        }