:root {
            --primary-blue: #0056b3;
            --secondary-blue: #007bff;
            --accent-yellow: #ffc107;
            --dark-bg: #1a1a2e;
            --light-bg: #f8f9fa;
            --text-dark: #212529;
            --text-light: #f8f9fa;
            --gray-border: #dee2e6;
            --success-green: #28a745;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px 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', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-blue) 100%);
            color: var(--text-light);
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--box-shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-yellow);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #fff;
        }
        .my-logo i {
            font-size: 2.2rem;
        }
        .main-nav {
            display: flex;
            gap: var(--spacing-md);
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
            align-items: center;
        }
        .nav-list a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover, .nav-list a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-yellow);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: rgba(255, 255, 255, 0.05);
            padding: var(--spacing-sm) 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: #c0c0ff;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb li+li:before {
            content: ">";
            margin-right: 0.5rem;
            color: #aaa;
        }
        .hero {
            background: linear-gradient(rgba(0, 85, 179, 0.85), rgba(26, 26, 46, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') no-repeat center center/cover;
            color: var(--text-light);
            text-align: center;
            padding: var(--spacing-xl) 0;
            margin-bottom: var(--spacing-lg);
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: var(--spacing-md);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto var(--spacing-lg);
            opacity: 0.95;
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(to right, var(--accent-yellow), #ff9800);
            color: var(--text-dark);
            padding: 1rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.2rem;
            transition: var(--transition);
            box-shadow: 0 6px 15px rgba(255, 193, 7, 0.3);
        }
        .cta-button:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(255, 193, 7, 0.4);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-xl);
            padding: var(--spacing-lg) 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: var(--spacing-xl);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .article-content h2, .article-content h3, .article-content h4 {
            color: var(--primary-blue);
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
        }
        .article-content h2 {
            font-size: 2.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent-yellow);
        }
        .article-content h3 {
            font-size: 1.8rem;
        }
        .article-content h4 {
            font-size: 1.4rem;
            color: var(--dark-bg);
        }
        .article-content p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary-blue);
        }
        .article-content em {
            background-color: rgba(255, 193, 7, 0.1);
            font-style: italic;
            padding: 0 0.2rem;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            box-shadow: var(--box-shadow);
        }
        .inline-link {
            color: var(--secondary-blue);
            text-decoration: none;
            border-bottom: 1px dotted var(--secondary-blue);
            font-weight: 600;
        }
        .inline-link:hover {
            color: var(--primary-blue);
            border-bottom-style: solid;
        }
        .highlight-box {
            background-color: #e7f3ff;
            border-left: 5px solid var(--secondary-blue);
            padding: var(--spacing-md);
            margin: var(--spacing-lg) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
        }
        .widget {
            background-color: white;
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .widget h3 {
            color: var(--primary-blue);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid var(--gray-border);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--secondary-blue);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--primary-blue);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            margin: var(--spacing-sm) 0;
        }
        .stars label {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars input {
            display: none;
        }
        .stars label:hover,
        .stars label:hover ~ label,
        .stars input:checked ~ label {
            color: var(--accent-yellow);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 0.8rem;
            border: 2px solid var(--gray-border);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--success-green);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: var(--border-radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            margin-top: var(--spacing-sm);
        }
        .submit-btn:hover {
            background-color: #218838;
        }
        .update-time {
            font-size: 0.9rem;
            color: #666;
            font-style: italic;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: var(--spacing-md);
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .footer-section h3 {
            color: var(--accent-yellow);
            margin-bottom: var(--spacing-md);
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .footer-links a {
            color: #c0c0ff;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-yellow);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin-top: var(--spacing-md);
        }
        friend-link a {
            color: var(--accent-yellow);
            font-weight: bold;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                display: none;
                order: 3;
                margin-top: var(--spacing-md);
            }
            .main-nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: var(--spacing-sm);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .article-content {
                padding: var(--spacing-lg);
            }
            .article-content h2 {
                font-size: 1.9rem;
            }
        }
        @media print {
            .site-header, .sidebar, .site-footer, .cta-button, .search-form, .rating-widget, .comment-form {
                display: none;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            body {
                color: black;
                background: white;
            }
        }