:root {
            --primary: #121212;
            --secondary: #1a1a1a;
            --accent: #e63946;
            --accent-light: #ff6b7a;
            --text: #f1faee;
            --text-muted: #a8dadc;
            --border: #2d3748;
            --card-bg: #1e1e1e;
            --success: #2a9d8f;
            --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);
            background-color: var(--primary);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent-light);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--secondary);
            padding: 1rem 0;
            border-bottom: 2px solid var(--accent);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, var(--accent), var(--text-muted));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .my-logo:hover {
            background: linear-gradient(90deg, var(--accent-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--secondary);
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span {
            margin: 0 5px;
        }
        .search-container {
            margin: 2rem 0;
            padding: 1.5rem;
            background-color: var(--card-bg);
            border-radius: 10px;
            border-left: 5px solid var(--accent);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 1px solid var(--border);
            background-color: var(--secondary);
            color: var(--text);
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-form button {
            padding: 12px 25px;
            background-color: var(--accent);
            color: white;
            border: none;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: var(--accent-light);
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: var(--card-bg);
            padding: 2.5rem;
            border-radius: 15px;
            margin-bottom: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            color: var(--text);
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--accent);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border);
        }
        h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: var(--text-muted);
        }
        h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: var(--text);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 4px solid var(--success);
        }
        .highlight {
            background-color: rgba(230, 57, 70, 0.1);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid var(--accent);
            margin: 2rem 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-card {
            background: linear-gradient(145deg, var(--secondary), var(--primary));
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            border: 1px solid var(--border);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(230, 57, 70, 0.2);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .stat-card h3 {
            font-size: 1.8rem;
            margin: 0.5rem 0;
            color: var(--text);
        }
        .image-container {
            margin: 3rem auto;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            border: 3px solid var(--border);
            box-shadow: 0 5px 15px rgba(0,0,0,0.5);
        }
        .link-list {
            background-color: var(--secondary);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            list-style: none;
        }
        .link-list li {
            padding: 0.5rem 0;
            border-bottom: 1px dotted var(--border);
        }
        .user-interaction {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .interaction-card {
            background-color: var(--card-bg);
            padding: 2rem;
            border-radius: 10px;
            border: 1px solid var(--border);
        }
        .interaction-card h3 {
            color: var(--accent);
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 1.5rem;
        }
        .rating-stars i {
            font-size: 2rem;
            color: var(--border);
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating-stars i.active,
        .rating-stars i:hover {
            color: gold;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--text-muted);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px;
            background-color: var(--secondary);
            border: 1px solid var(--border);
            border-radius: 5px;
            color: var(--text);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--success);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: background-color 0.3s;
        }
        .submit-btn:hover {
            background-color: #21867a;
        }
        footer {
            background-color: var(--secondary);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 2px solid var(--accent);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section ul li {
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background-color: var(--card-bg);
            margin: 0.5rem 0;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
        friend-link:hover {
            background-color: var(--primary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .user-interaction {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }