:root {
            --primary: #0b5ed7; 
            --secondary: #dc3545; 
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
            padding: 1rem 0;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--secondary);
            transform: scale(1.02);
        }
        .my-logo i {
            color: var(--secondary);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text span:first-child {
            font-size: 1.8rem;
        }
        .logo-text span:last-child {
            font-size: 0.9rem;
            font-weight: 300;
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 1rem 1.5rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
        }
        .search-section {
            background: linear-gradient(to right, var(--primary), #0d6efd);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: white;
        }
        .search-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .search-form {
            display: flex;
            margin-top: 1.5rem;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #bb2d3b;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
        }
        article {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            padding: 2.5rem;
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #eee;
            padding-bottom: 1.5rem;
        }
        h1 {
            color: var(--dark);
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: var(--gray);
            font-size: 0.95rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .article-meta span i {
            margin-right: 0.5rem;
            color: var(--primary);
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #eaeaea;
        }
        h3 {
            color: var(--dark);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #444;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .content-highlight {
            background: linear-gradient(to right, rgba(13, 110, 253, 0.08), transparent);
            border-left: 5px solid var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        ul, ol {
            padding-left: 1.8rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        blockquote {
            font-style: italic;
            background: #f9f9f9;
            border-left: 10px solid var(--secondary);
            margin: 2rem 0;
            padding: 1.5rem 2rem;
            border-radius: 0 10px 10px 0;
            box-shadow: var(--shadow);
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid #dee2e6;
        }
        .rating-widget, .comment-widget {
            margin-bottom: 2.5rem;
        }
        .rating-title, .comment-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1.2rem;
            color: var(--dark);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .rating-form input,
        .comment-form input,
        .comment-form textarea {
            padding: 1rem;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .rating-form input:focus,
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
            outline: none;
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-button {
            align-self: flex-start;
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .form-button:hover {
            background-color: #0b5ed7;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(11, 94, 215, 0.2);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            color: var(--dark);
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--primary);
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: #444;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .related-links i {
            color: var(--secondary);
        }
        .update-info {
            background: linear-gradient(135deg, #fff8e1, #ffecb3);
            border-left: 5px solid #ff9800;
        }
        .site-footer {
            background-color: var(--dark);
            color: #ddd;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .footer-links h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            border-radius: 8px;
            padding: 1.2rem;
            margin: 1rem 0;
            border-left: 4px solid var(--primary);
        }
        friend-link a {
            color: #4dabf7;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--dark);
                flex-direction: column;
                padding: 1.5rem;
                box-shadow: var(--shadow);
                text-align: center;
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 0 1rem;
            }
            article {
                padding: 1.8rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 12px;
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 0;
                padding: 1.2rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .form-button {
                align-self: stretch;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .featured-image {
                max-height: 300px;
            }
            .sidebar-widget {
                padding: 1.5rem;
            }
        }
        @media print {
            .site-header, .search-section, aside, .interactive-section, .site-footer {
                display: none;
            }
            body {
                background: white;
                color: black;
                font-size: 12pt;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }