:root {
            --primary: #0056D2;
            --primary-dark: #003B8E;
            --secondary: #FF003C;
            --accent: #00C2FF;
            --light: #F5F9FF;
            --dark: #1A1F2C;
            --gray: #6C757D;
            --gray-light: #E9ECEF;
            --border-radius: 12px;
            --box-shadow: 0 10px 30px rgba(0, 86, 210, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(90deg, var(--accent), white);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: white;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            border-top: 3px solid var(--secondary);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.05);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background: var(--gray-light);
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--gray);
        }
        main {
            padding: 3rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--gray-light);
        }
        .article-header h1 {
            font-size: 3rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 2rem;
            color: var(--gray);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .article-content h2 {
            color: var(--primary-dark);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--gray-light);
            font-size: 2.2rem;
        }
        .article-content h3 {
            color: var(--dark);
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .article-content em {
            color: var(--secondary);
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, var(--light) 0%, #e3f2fd 100%);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background: white;
            border: 1px solid var(--gray-light);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            transition: var(--transition);
        }
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--box-shadow);
            border-color: var(--accent);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--gray-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 1rem;
            border: 2px solid var(--gray-light);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
        }
        .search-form input:focus {
            border-color: var(--accent);
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2rem;
            color: var(--gray-light);
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover,
        .stars i.active {
            color: #FFD700;
        }
        .rating-widget button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background: #d90030;
            transform: scale(1.05);
        }
        .comments-section {
            margin-top: 3rem;
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .comments-section h2 {
            color: var(--primary-dark);
            margin-bottom: 2rem;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-bottom: 3rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea {
            padding: 1rem;
            border: 2px solid var(--gray-light);
            border-radius: var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .comment-form button {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            padding: 1.2rem;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .comment-form button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 86, 210, 0.2);
        }
        .comment-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .comment {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--accent);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin-top: 2rem;
        }
        friend-link h3 {
            color: var(--accent);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .friend-links a {
            background: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .friend-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .article-header h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .friend-links {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 1rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }