:root {
            --primary: #0A5CFF;
            --primary-dark: #003BCC;
            --secondary: #FF6B00;
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --gray: #6C757D;
            --success: #28A745;
            --border-radius: 12px;
            --shadow: 0 8px 30px rgba(0, 91, 234, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            text-decoration: none;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .logo span {
            color: var(--primary);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: var(--primary);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1.5rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--gray);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .search-section {
            background: white;
            padding: 3rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 0;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(10, 92, 255, 0.15);
        }
        .search-input {
            flex: 1;
            padding: 1.2rem 1.8rem;
            border: none;
            background: var(--light);
            font-size: 1.1rem;
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1.2rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--primary-dark);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
            margin: 2rem 0;
        }
        .article-content {
            background: white;
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 3px solid var(--primary);
            display: inline-block;
        }
        h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--dark);
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2.2rem;
            margin: 3rem 0 1.5rem;
            color: var(--dark);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            color: var(--primary-dark);
        }
        h4 {
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
            color: var(--dark);
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #eee;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--primary-dark);
            font-weight: 500;
            margin-bottom: 2.5rem;
            padding: 1.5rem;
            background: linear-gradient(90deg, rgba(10, 92, 255, 0.08), rgba(255, 107, 0, 0.08));
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
        }
        strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255, 107, 0, 0.15) 0%, rgba(255, 107, 0, 0) 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }
        .feature-box {
            background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
            border: 2px solid var(--primary);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            margin: 2.5rem 0;
        }
        .feature-box h3 {
            margin-top: 0;
        }
        .article-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            color: var(--gray);
            font-style: italic;
            margin-top: -1.5rem;
            margin-bottom: 2.5rem;
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            border-bottom: 2px dotted var(--primary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        ul, ol {
            margin-bottom: 2rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2.2rem;
            color: #FFD700;
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .rating-form input[type="radio"] {
            display: none;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            padding: 1rem 1.2rem;
            border: 2px solid #e1e5eb;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 92, 255, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
            font-family: inherit;
        }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1.2rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 7px 20px rgba(10, 92, 255, 0.3);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        .web-link a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .web-link i {
            color: var(--primary);
        }
        .site-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-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-section p {
            color: #b0b7c3;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b0b7c3;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2d3748;
            color: #8a94a6;
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.8rem;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 1;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #eee;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.9rem;
            }
            .article-content,
            .search-section {
                padding: 2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-input,
            .search-btn {
                width: 100%;
                border-radius: 8px;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.8rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            .site-header,
            .search-section,
            .sidebar,
            .rating-widget,
            .site-footer {
                display: none;
            }
            body {
                background: white;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }