:root {
            --primary-color: #1a1a2e;
            --accent-color: #00a8e8;
            --secondary-color: #162447;
            --text-color: #e6e6e6;
            --light-bg: #2d3047;
            --highlight-color: #ffd700;
            --border-color: #00a8e8;
            --success-color: #4CAF50;
            --warning-color: #ff9800;
            --spacing-unit: 1rem;
            --border-radius: 8px;
            --transition-speed: 0.3s;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--primary-color);
            background-image: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--accent-color);
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        a:hover {
            color: var(--highlight-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-unit);
        }
        .site-header {
            background-color: rgba(22, 36, 71, 0.95);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--accent-color), var(--highlight-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
            transition: transform var(--transition-speed);
        }
        .main-nav {
            display: flex;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-link {
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--accent-color);
            color: white;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 0.5rem;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--accent-color);
            transition: 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: rgba(255, 255, 255, 0.05);
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--light-bg);
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb-item::after {
            content: ">";
            margin-left: 0.5rem;
            color: var(--accent-color);
        }
        .breadcrumb-item:last-child::after {
            content: "";
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--border-color);
        }
        .article-title {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            color: white;
            line-height: 1.2;
        }
        .article-meta {
            color: #aaa;
            font-size: 0.9rem;
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .article-body {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .article-body {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .sidebar {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1, h2, h3, h4 {
            color: white;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--accent-color);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-color);
        }
        h4 {
            font-size: 1.4rem;
            color: var(--highlight-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: var(--highlight-color);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(0, 168, 232, 0.2);
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .info-box {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border: 1px solid var(--border-color);
        }
        .info-box h3 {
            margin-top: 0;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        strong {
            color: var(--highlight-color);
            font-weight: 700;
        }
        em {
            color: #aaa;
        }
        hr {
            border: none;
            height: 1px;
            background-color: var(--light-bg);
            margin: 2.5rem 0;
        }
        .search-widget, .comments-widget, .rating-widget {
            margin-bottom: 2rem;
            padding: 1.5rem;
            background-color: rgba(22, 36, 71, 0.7);
            border-radius: var(--border-radius);
        }
        .widget-title {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--accent-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .widget-title i {
            font-size: 1.2rem;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid var(--light-bg);
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            outline: none;
        }
        .search-input:focus {
            border-color: var(--accent-color);
        }
        .search-button {
            padding: 0.8rem 1.5rem;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: background-color var(--transition-speed);
        }
        .search-button:hover {
            background-color: #0086c0;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-label {
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid var(--light-bg);
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            border-radius: var(--border-radius);
            outline: none;
            font-family: var(--font-main);
        }
        .form-input:focus, .form-textarea:focus {
            border-color: var(--accent-color);
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            padding: 0.8rem 1.5rem;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: background-color var(--transition-speed);
            align-self: flex-start;
        }
        .submit-button:hover {
            background-color: #0086c0;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #555;
            cursor: pointer;
            transition: color var(--transition-speed);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--highlight-color);
        }
        .article-image {
            margin: 2rem auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            max-width: 800px;
        }
        .article-image figcaption {
            padding: 1rem;
            background-color: rgba(0, 0, 0, 0.5);
            font-size: 0.9rem;
            color: #ccc;
            text-align: center;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .comparison-table th, .comparison-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--light-bg);
        }
        .comparison-table th {
            background-color: var(--secondary-color);
            color: var(--accent-color);
            font-weight: 700;
        }
        .comparison-table tr:hover {
            background-color: rgba(0, 168, 232, 0.1);
        }
        .site-footer {
            background-color: var(--secondary-color);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--highlight-color);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem 1rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            margin-bottom: 0.5rem;
            transition: background-color var(--transition-speed);
        }
        friend-link:hover {
            background-color: rgba(0, 168, 232, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--light-bg);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                gap: 0.5rem;
            }
            .article-title {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .content-area, .sidebar {
                padding: 1.5rem;
            }
        }