* { 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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            font-family: 'Arial Black', sans-serif;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(45deg, #ffd700, #ff9800);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .logo:hover { transform: scale(1.05); }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            font-size: 1.1rem;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #283593;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-size: 1.2rem;
        }
        .nav-mobile a:hover { background: rgba(255,255,255,0.1); }
        .breadcrumb {
            padding: 1rem 0;
            background: #e8eaf6;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #5c6bc0; }
        .breadcrumb a:hover { text-decoration: underline; }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            text-align: center;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: #283593;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffd700;
        }
        h3 {
            font-size: 1.8rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background: #fff9c4;
            padding: 1.5rem;
            border-left: 5px solid #ff9800;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            font-weight: 600;
        }
        .emoji { font-size: 1.3rem; margin-right: 8px; }
        .bold { font-weight: 900; color: #1a237e; }
        .image-container {
            text-align: center;
            margin: 2.5rem auto;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s;
        }
        .image-container img:hover { transform: scale(1.02); }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 1rem;
        }
        .functional-sections {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .function-box {
            background: #f3f4f9;
            padding: 2rem;
            border-radius: 12px;
            border: 2px solid #c5cae9;
        }
        .function-box h3 { color: #5c6bc0; border-bottom: none; margin-top: 0; }
        .function-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .function-box input, .function-box textarea, .function-box select {
            padding: 0.9rem;
            border: 1px solid #9fa8da;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
        }
        .function-box button {
            padding: 1rem;
            background: linear-gradient(90deg, #5c6bc0, #3949ab);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .function-box button:hover {
            background: linear-gradient(90deg, #3949ab, #283593);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            margin: 1rem 0;
        }
        .rating input { display: none; }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label { color: #ffd700; }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem;
            background: #e8eaf6;
            border-radius: 12px;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            background: #5c6bc0;
            color: white;
        }
        .web-link a { display: block; font-weight: 600; }
        footer {
            background: #1a237e;
            color: white;
            padding: 2.5rem 0;
            text-align: center;
        }
        .footer-content { max-width: 800px; margin: 0 auto; }
        .copyright {
            margin-top: 1.5rem;
            font-size: 0.95rem;
            color: #c5cae9;
            border-top: 1px solid #3949ab;
            padding-top: 1.5rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .functional-sections { grid-template-columns: 1fr; }
            .web-links { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            article { padding: 1.5rem; }
            .logo { font-size: 1.8rem; }
            h1 { font-size: 1.8rem; }
            .web-links { grid-template-columns: 1fr; }
        }