:root {
            --primary: #1a237e;
            --primary-light: #534bae;
            --accent: #ffab00;
            --text-dark: #212121;
            --text-light: #757575;
            --bg-light: #f5f5f5;
            --bg-white: #ffffff;
            --shadow: rgba(0, 0, 0, 0.1);
            --border: #e0e0e0;
            --success: #4caf50;
            --warning: #ff9800;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: white;
            box-shadow: 0 4px 12px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent);
        }
        .search-box {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
        }
        .search-box button {
            background-color: var(--accent);
            color: var(--primary);
            border: none;
            padding: 0 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #ffd54f;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav {
            background-color: rgba(0, 0, 0, 0.1);
        }
        .nav-links {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            color: white;
            padding: 18px 22px;
            display: block;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-light);
            margin: 0 8px;
        }
        main {
            background-color: var(--bg-white);
            box-shadow: 0 2px 15px var(--shadow);
            border-radius: 8px;
            margin: 30px auto;
            padding: 40px;
            overflow: hidden;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 25px;
            border-bottom: 2px dashed var(--border);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 8px;
            margin: 30px 0;
            box-shadow: 0 5px 15px var(--shadow);
            border: 3px solid var(--accent);
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        h3 {
            color: var(--primary-light);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--text-dark);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 20px;
            border-left: 5px solid var(--accent);
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .quote {
            font-style: italic;
            color: var(--text-light);
            padding: 20px 30px;
            margin: 25px 40px;
            background-color: var(--bg-light);
            border-radius: 8px;
            position: relative;
        }
        .quote::before {
            content: '\f10d';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent);
            position: absolute;
            left: -15px;
            top: -15px;
            font-size: 2rem;
        }
        .link-list {
            background-color: var(--bg-light);
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .link-list a {
            display: block;
            padding: 12px 15px;
            background-color: var(--bg-white);
            border-radius: 5px;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }
        .link-list a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 10px var(--shadow);
            border-color: var(--accent);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-box {
            text-align: center;
            padding: 25px 15px;
            background: linear-gradient(135deg, #f5f5f5, #e8eaf6);
            border-radius: 8px;
            border-top: 4px solid var(--primary);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .stat-label {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-top: 10px;
        }
        .interactive-section {
            margin: 40px 0;
            padding: 30px;
            background-color: var(--bg-light);
            border-radius: 10px;
            border: 1px solid var(--border);
        }
        .rating-section, .comment-section {
            margin-bottom: 40px;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 20px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: var(--accent);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-dark);
        }
        input, textarea, select {
            padding: 15px;
            border: 1px solid var(--border);
            border-radius: 5px;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(26, 35, 126, 0.1);
        }
        button[type="submit"] {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            align-self: flex-start;
        }
        button[type="submit"]:hover {
            background-color: var(--primary-light);
        }
        footer {
            background-color: var(--primary);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: var(--accent);
            font-size: 1.5rem;
            margin-bottom: 25px;
            border: none;
            padding: 0;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ddd;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 5px;
            margin-top: 15px;
            border-left: 3px solid var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.8rem; }
            .header-top { flex-wrap: wrap; }
            .search-box { order: 3; margin-top: 15px; max-width: 100%; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--primary-light);
            }
            .nav-links.active { display: flex; }
            .nav-links a { padding: 15px 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
            main { padding: 25px; }
            .link-list { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .quote { margin: 25px 10px; }
        }
        @media (max-width: 576px) {
            h1 { font-size: 1.9rem; }
            h2 { font-size: 1.5rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .meta-info { flex-direction: column; align-items: center; gap: 10px; }
            .footer-content { grid-template-columns: 1fr; }
        }