* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #004d99;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #283593);
            color: white;
            padding: 1.5rem 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 a {
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: #ffcc00;
        }
        .logo i {
            font-size: 2.8rem;
        }
        .menu-toggle {
            display: none;
            font-size: 2rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 10px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav ul li a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 16px;
            border-radius: 5px;
            transition: background 0.3s ease;
        }
        nav ul li a:hover {
            background: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #666;
        }
        main {
            padding: 2rem 0;
            background: white;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
            margin: 2rem auto;
        }
        article {
            padding: 0 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            border-left: 6px solid #ffcc00;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #283593;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #c5cae9;
        }
        h3 {
            font-size: 1.8rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
            line-height: 1.9;
        }
        .highlight {
            background: #e3f2fd;
            padding: 1.5rem;
            border-left: 5px solid #2196f3;
            margin: 2rem 0;
            border-radius: 5px;
        }
        .highlight strong {
            color: #0d47a1;
        }
        .article-image {
            margin: 3rem auto;
            text-align: center;
            max-width: 800px;
        }
        .article-image img {
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            transition: transform 0.4s ease;
        }
        .article-image img:hover {
            transform: scale(1.02);
        }
        .article-image figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .content-links {
            display: inline;
            font-weight: bold;
            color: #d32f2f;
        }
        .functional-sections {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 4rem 0;
            padding: 2rem;
            background: #f5f5f5;
            border-radius: 12px;
        }
        .function-box {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
        }
        .function-box:hover {
            transform: translateY(-5px);
        }
        .function-box h3 {
            color: #1a237e;
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .function-box h3 i {
            color: #ff9800;
        }
        .function-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .function-box input, .function-box textarea, .function-box select {
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .function-box input:focus, .function-box textarea:focus, .function-box select:focus {
            border-color: #3949ab;
            outline: none;
        }
        .function-box button {
            padding: 12px 24px;
            background: linear-gradient(to right, #1a237e, #3949ab);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .function-box button:hover {
            background: linear-gradient(to right, #0d1b6b, #283593);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars label:hover,
        .stars input:checked ~ label {
            color: #ffcc00;
        }
        .footer-links {
            background: #e8eaf6;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: #1a237e;
            color: white;
        }
        .web-link a {
            color: inherit;
            font-weight: 600;
        }
        .web-link:hover a {
            color: white;
        }
        footer {
            background: #1a237e;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }
        .copyright {
            font-size: 0.95rem;
            opacity: 0.9;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .menu-toggle {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #283593;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                width: 100%;
                text-align: center;
            }
            nav ul li a {
                display: block;
                padding: 1rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .functional-sections {
                grid-template-columns: 1fr;
                padding: 1.5rem;
            }
            .web-links-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .web-links-container {
                grid-template-columns: 1fr;
            }
            article {
                padding: 0 1rem;
            }
            .function-box {
                padding: 1.5rem;
            }
        }