:root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #1a2530;
            --gray: #95a5a6;
            --success: #27ae60;
            --warning: #f39c12;
            --shadow: 0 4px 6px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #1a2530 0%, #2c3e50 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(26, 37, 48, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent);
            transform: translateY(-2px);
        }
        .my-logo i {
            color: var(--accent);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            flex: 1;
            margin: 0 30px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid var(--secondary);
            border-radius: var(--radius) 0 0 var(--radius);
            background: rgba(255,255,255,0.9);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-form button:hover {
            background: var(--accent);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 5px;
        }
        nav {
            background: rgba(44, 62, 80, 0.98);
        }
        .nav-links {
            display: flex;
            list-style: none;
            padding: 0;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            color: var(--light);
            text-decoration: none;
            padding: 18px 22px;
            display: block;
            font-weight: 600;
            transition: var(--transition);
            border-bottom: 3px solid transparent;
        }
        .nav-links a:hover {
            background: rgba(52, 152, 219, 0.1);
            border-bottom-color: var(--secondary);
            color: var(--secondary);
        }
        .nav-links a.active {
            border-bottom-color: var(--accent);
            color: var(--accent);
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(255,255,255,0.05);
            margin-bottom: 2px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        main {
            background: white;
            border-radius: var(--radius) var(--radius) 0 0;
            box-shadow: var(--shadow);
            overflow: hidden;
            min-height: 80vh;
        }
        .article-header {
            padding: 40px 0 30px;
            text-align: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 30px;
            color: rgba(255,255,255,0.9);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 0 0 40px;
        }
        .article-content {
            padding: 0 40px;
        }
        .sidebar {
            padding: 25px 20px 25px 0;
        }
        .widget {
            background: var(--light);
            border-radius: var(--radius);
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
            font-size: 1.4rem;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        h3 {
            color: var(--dark);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--primary);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: #444;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--dark);
            background: rgba(52, 152, 219, 0.1);
            padding: 20px;
            border-radius: var(--radius);
            border-left: 4px solid var(--secondary);
        }
        .highlight {
            background: linear-gradient(120deg, #fffbeb 0%, #fef3c7 100%);
            padding: 25px;
            border-radius: var(--radius);
            border: 2px solid var(--warning);
            margin: 25px 0;
        }
        .highlight strong {
            color: var(--accent);
            font-size: 1.2rem;
        }
        .content-link {
            color: var(--secondary);
            text-decoration: none;
            border-bottom: 1px dashed var(--secondary);
            transition: var(--transition);
            font-weight: 600;
        }
        .content-link:hover {
            color: var(--accent);
            border-bottom-style: solid;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            margin: 30px auto;
            display: block;
            box-shadow: 0 6px 15px rgba(0,0,0,0.2);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.25);
        }
        .feature-list {
            background: rgba(236, 240, 241, 0.5);
            padding: 25px;
            border-radius: var(--radius);
            margin: 25px 0;
        }
        .feature-list ul {
            list-style: none;
            padding-left: 0;
        }
        .feature-list li {
            padding: 12px 0 12px 35px;
            position: relative;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .feature-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: bold;
            font-size: 1.2rem;
        }
        .rating-widget {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 30px;
            border-radius: var(--radius);
            text-align: center;
            border: 2px solid var(--gray);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
            font-size: 2rem;
            color: var(--warning);
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
            color: var(--accent);
        }
        .rating-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--gray);
            border-radius: var(--radius);
            margin: 15px 0;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
        }
        .btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-block;
            text-decoration: none;
        }
        .btn:hover {
            background: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .btn-block {
            display: block;
            width: 100%;
            text-align: center;
        }
        .comments-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid var(--light);
        }
        .comment {
            background: var(--light);
            padding: 20px;
            border-radius: var(--radius);
            margin-bottom: 20px;
            border-left: 4px solid var(--secondary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            color: var(--dark);
            font-size: 0.9rem;
        }
        footer {
            background: var(--dark);
            color: var(--light);
            padding: 50px 0 30px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--gray);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        .friend-links {
            background: rgba(255,255,255,0.05);
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
        }
        .friend-links h5 {
            color: var(--secondary);
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(52, 152, 219, 0.2);
            color: var(--secondary);
            padding: 8px 15px;
            border-radius: 20px;
            margin: 5px 10px 5px 0;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        friend-link:hover {
            background: var(--secondary);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .sidebar {
                padding: 0 40px;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin: 20px 0 0;
                max-width: 100%;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background: var(--primary);
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links a {
                padding: 15px 20px;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 0 20px;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .lead {
                font-size: 1.1rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }
        .py-20 { padding-top: 20px; padding-bottom: 20px; }
        .emoji { font-size: 1.2em; }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }