* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(to right, #2c3e50, #4a6491);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #f39c12;
        }
        .logo span {
            background: linear-gradient(to right, #f39c12, #ffd700);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #2c3e50;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: background 0.3s;
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background: #f8f9fa;
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 8px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #4a6491;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.5rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            text-align: center;
        }
        h2 {
            font-size: 1.8rem;
            color: #4a6491;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #f39c12;
        }
        h3 {
            font-size: 1.4rem;
            color: #2c3e50;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fffbeb 0%, #fef3c7 100%);
            padding: 1.5rem;
            border-left: 4px solid #f59e0b;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 2px;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #f8fafc;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .feature-card i {
            font-size: 2rem;
            color: #4a6491;
            margin-bottom: 1rem;
        }
        .form-section {
            background: #f1f5f9;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #cbd5e1;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4a6491;
            box-shadow: 0 0 0 3px rgba(74, 100, 145, 0.1);
        }
        button {
            background: linear-gradient(to right, #4a6491, #2c3e50);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
        }
        button:hover {
            background: linear-gradient(to right, #3a5479, #1c2a40);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #e2e8f0;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: #f59e0b;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            text-align: center;
        }
        .article-image img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s;
        }
        .article-image img:hover {
            transform: scale(1.02);
        }
        .article-image figcaption {
            margin-top: 0.5rem;
            font-style: italic;
            color: #64748b;
            font-size: 0.9rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #e2e8f0;
        }
        .web-link a {
            color: #4a6491;
            text-decoration: none;
            font-weight: 500;
            display: block;
            padding: 0.5rem;
            transition: all 0.3s;
        }
        .web-link a:hover {
            color: #2c3e50;
            background: #f8fafc;
            border-radius: 4px;
            padding-left: 1rem;
        }
        footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #f39c12;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-section a {
            color: #e2e8f0;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: #f39c12;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #cbd5e1;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            article {
                padding: 1.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 1rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .form-section {
                padding: 1.5rem;
            }
        }
        @media print {
            .no-print {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }