:root {
            --primary-dark: #1a237e;
            --primary-main: #283593;
            --primary-light: #5c6bc0;
            --accent: #ffab00;
            --text-primary: #212121;
            --text-secondary: #757575;
            --bg-light: #f5f5f5;
            --bg-white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            font-size: 16px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-main);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-main));
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent);
        }
        .my-logo:hover {
            text-decoration: none;
            transform: scale(1.02);
        }
        .breadcrumb {
            padding: 12px 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--primary-main);
        }
        .breadcrumb a:hover {
            color: var(--primary-dark);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
        }
        .desktop-nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after,
        .desktop-nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background-color: var(--primary-dark);
            padding: 2rem 1.5rem;
            z-index: 1001;
            transition: right 0.4s ease;
            overflow-y: auto;
        }
        .mobile-nav.active {
            right: 0;
        }
        .mobile-nav a {
            display: block;
            color: white;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 500;
        }
        .mobile-nav a:hover {
            color: var(--accent);
            padding-left: 10px;
        }
        .close-nav {
            color: white;
            font-size: 2rem;
            position: absolute;
            top: 15px;
            right: 20px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 1000;
            display: none;
        }
        .overlay.active {
            display: block;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        @media (max-width: 992px) {
            .sidebar {
                order: -1;
            }
        }
        .sidebar-widget {
            background-color: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-dark);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(92, 107, 192, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-main), var(--primary-dark));
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, var(--primary-dark), var(--primary-dark));
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
            text-decoration: none;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-main);
            margin: 2.5rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin: 2rem 0 0.8rem 0;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin: 1.5rem 0 0.8rem 0;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-dark);
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent);
        }
        strong, b {
            color: var(--primary-dark);
        }
        .highlight {
            background-color: #fff9c4;
            padding: 2px 6px;
            border-radius: 3px;
        }
        .last-updated {
            font-style: italic;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 2rem;
            text-align: right;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .internal-links {
            background-color: #f0f4ff;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
            list-style: none;
        }
        .internal-links li:before {
            content: "♔";
            margin-right: 10px;
            color: var(--primary-main);
        }
        footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links a {
            color: #bbdefb;
            display: block;
            padding: 0.3rem 0;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 4px;
            color: #bbdefb;
            font-size: 0.9rem;
        }
        friend-link a {
            color: inherit;
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #bbdefb;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .emoji { font-size: 1.2em; }