:root {
            --primary-color: #0a58ca;
            --secondary-color: #dc3545;
            --accent-color: #ffc107;
            --dark-color: #1a1d28;
            --light-color: #f8f9fa;
            --text-color: #333;
            --text-light: #6c757d;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--dark-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: white;
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 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%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #0d6efd);
            color: white;
            padding: 2.5rem 0;
            text-align: center;
        }
        .search-section h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #c82333;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .article-content {
            background: white;
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--box-shadow);
        }
        .article-header {
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid var(--light-color);
        }
        .article-header h1 {
            font-size: 2.5rem;
            line-height: 1.2;
            color: var(--dark-color);
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            gap: 1rem;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 0.3rem;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--dark-color);
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .highlight-box {
            background-color: #e7f1ff;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.5rem;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .tip {
            background-color: #fff3cd;
            border: 1px solid #ffecb5;
            padding: 1rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0;
        }
        .tip::before {
            content: '💡';
            margin-right: 0.5rem;
            font-size: 1.2rem;
        }
        .button {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .button:hover {
            background-color: #0b5ed7;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(10, 88, 202, 0.3);
        }
        .button-secondary {
            background-color: var(--secondary-color);
        }
        .button-secondary:hover {
            background-color: #bb2d3b;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--box-shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            color: var(--dark-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--light-color);
        }
        .download-box {
            text-align: center;
            background: linear-gradient(135deg, var(--dark-color), #2d3748);
            color: white;
            padding: 2rem 1.5rem;
        }
        .download-box h3 {
            color: white;
            border-bottom: none;
        }
        .rating-stars {
            color: var(--accent-color);
            font-size: 1.5rem;
            margin: 1rem 0;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .stars-input {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .stars-input i {
            color: #ddd;
            transition: var(--transition);
        }
        .stars-input i:hover,
        .stars-input i.active {
            color: var(--accent-color);
        }
        .footer-links {
            background-color: var(--light-color);
            padding: 2.5rem 0;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: var(--border-radius);
            border-left: 3px solid var(--primary-color);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateX(5px);
            box-shadow: var(--box-shadow);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: #aaa;
            padding: 2.5rem 0 1.5rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .copyright {
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            width: 100%;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                flex-direction: column;
                padding: 1rem;
                gap: 0;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav a {
                padding: 1rem;
                border-bottom: 1px solid #333;
                width: 100%;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-input, .search-button {
                border-radius: 0;
                padding: 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-content {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .web-links-grid {
                grid-template-columns: 1fr;
            }
        }