* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --secondary: #3498db;
            --secondary-dark: #2980b9;
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #95a5a6;
            --success: #27ae60;
            --warning: #f39c12;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        button, input, textarea {
            font: inherit;
            border: none;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            border: 2px solid transparent;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-dark);
        }
        section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .center-text {
            text-align: center;
        }
        header {
            background-color: var(--dark);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--primary);
        }
        .logo span {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        nav ul {
            display: flex;
            gap: 30px;
        }
        nav a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        nav a:hover {
            color: var(--primary);
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 15px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .hero {
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.95)), url('https://images.unsplash.com/photo-1546519638-68e109498ffc?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            padding: 100px 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 40px;
        }
        article {
            background: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
            color: var(--dark);
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 2.5rem 0 1rem;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: var(--secondary-dark);
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content ul, .article-content ol {
            margin-left: 25px;
            margin-bottom: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .highlight {
            background-color: #fffde7;
            border-left: 4px solid var(--warning);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: var(--light);
            padding: 20px;
            border-radius: 8px;
            text-align: center;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
            margin-bottom: 10px;
        }
        .feature-img {
            border-radius: 10px;
            overflow: hidden;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .feature-img figcaption {
            padding: 10px;
            background: var(--light);
            font-size: 0.9rem;
            color: var(--gray);
            text-align: center;
        }
        .search-box, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: var(--gray);
            cursor: pointer;
        }
        .stars i:hover,
        .stars i.active {
            color: var(--warning);
        }
        .web-links {
            background: var(--dark);
            padding: 40px 0;
            color: white;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        footer {
            background: #1a252f;
            color: #bbb;
            text-align: center;
            padding: 30px 20px;
            font-size: 0.9rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-bottom: 20px;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .copyright {
            border-top: 1px solid #2c3e50;
            padding-top: 20px;
            margin-top: 20px;
        }
        @media (max-width: 992px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 2.2rem;
            }
            .hero h1 {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 768px) {
            nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background: var(--dark);
                width: 100%;
                text-align: center;
                padding: 30px;
                transition: left 0.3s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            nav ul.active {
                left: 0;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 15px;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            article {
                padding: 25px;
            }
        }
        @media (max-width: 576px) {
            .section-title {
                font-size: 1.8rem;
            }
            .hero {
                padding: 70px 20px;
            }
            .btn {
                padding: 10px 20px;
            }
            .footer-links {
                flex-direction: column;
                gap: 15px;
            }
        }