:root {
            --primary-color: #1a73e8;
            --secondary-color: #ea4335;
            --accent-color: #fbbc04;
            --dark-color: #202124;
            --light-color: #f8f9fa;
            --text-color: #333;
            --text-light: #5f6368;
            --border-color: #dadce0;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --container-width: 1200px;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-body: 'Arial', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.6;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--dark-color);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent-color);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 10px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: var(--text-light);
        }
        .hero {
            padding: 40px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            margin-bottom: 40px;
        }
        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--dark-color);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-bottom: 30px;
        }
        .search-container {
            max-width: 600px;
            margin: 30px auto 0;
            background: white;
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid var(--border-color);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-color);
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background-color: #0d62c9;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px 0 40px;
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
            color: var(--dark-color);
        }
        h1, h2, h3, h4 {
            font-family: var(--font-heading);
            color: var(--dark-color);
            margin-top: 1.5em;
            margin-bottom: 0.8em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--secondary-color);
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.05rem;
        }
        strong {
            color: var(--dark-color);
            font-weight: 700;
        }
        .highlight {
            background-color: rgba(251, 188, 4, 0.15);
            padding: 2px 5px;
            border-radius: 3px;
        }
        .note {
            background-color: #e8f0fe;
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .note-title {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .interactive-section {
            margin: 40px 0;
            padding: 30px;
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
        }
        .section-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 25px;
        }
        .comment-form, .rating-form {
            display: grid;
            gap: 15px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-label {
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-input, .form-textarea {
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
        }
        .submit-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-button:hover {
            background-color: #0d62c9;
            transform: translateY(-2px);
        }
        .footer-links {
            background-color: var(--dark-color);
            padding: 40px 0;
            color: white;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .web-link {
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-size: 1rem;
            display: block;
        }
        .web-link a:hover {
            color: var(--accent-color);
        }
        .site-footer {
            background-color: #101010;
            color: #aaa;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .copyright {
            font-size: 0.9rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            width: 100%;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .header-container {
                padding: 12px 20px;
            }
            .hero {
                padding: 30px 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 20px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.5s ease forwards;
        }