:root {
            --primary: #0056ff; 
            --secondary: #ff2a2a; 
            --accent: #00d4aa; 
            --dark: #0a0a23;
            --light: #f8f9fa;
            --gray: #6c757d;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            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(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #1a1a3a 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            background: none;
            -webkit-text-fill-color: var(--accent);
        }
        .breadcrumb {
            font-size: 0.9rem;
            color: #aaa;
            margin: 0.5rem 0 0;
            padding: 0 1.5rem;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
        }
        .breadcrumb a {
            color: #ccc;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-container {
            max-width: var(--max-width);
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            color: var(--dark);
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--primary);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
            color: var(--secondary);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--gray);
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 4px solid var(--primary);
        }
        .highlight {
            background-color: rgba(0, 214, 170, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            margin: 2rem 0;
        }
        .highlight strong {
            color: var(--dark);
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        .interactive-module {
            background: var(--light);
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        .search-box, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .input-group {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
        }
        .input-group input, .input-group textarea, .input-group select {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .input-group textarea {
            min-height: 120px;
            resize: vertical;
            border-radius: var(--border-radius);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), #0041cc);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 86, 255, 0.3);
        }
        .btn-secondary {
            background: linear-gradient(to right, var(--secondary), #cc0000);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--dark);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
        }
        .link-list a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0.6rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .link-list a:hover {
            background-color: rgba(0, 86, 255, 0.05);
            color: var(--primary);
            padding-left: 1rem;
        }
        .link-list i {
            color: var(--primary);
        }
        site-footer {
            background: var(--dark);
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin-top: 2rem;
        }
        friend-link h4 {
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .friend-links a {
            background: rgba(255, 255, 255, 0.08);
            color: #ccc;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .friend-links a:hover {
            background: var(--primary);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark);
                flex-direction: column;
                padding: 2rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
                z-index: 999;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav li {
                text-align: center;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 1.5rem;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold {
            font-weight: 800;
            color: var(--dark);
        }
        .keyword {
            background: linear-gradient(120deg, rgba(0, 86, 255, 0.1) 0%, rgba(0, 214, 170, 0.1) 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .inline-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed currentColor;
        }
        .inline-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        .text-center {
            text-align: center;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }