* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        ul {
            list-style-type: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #3949ab);
            color: white;
            padding: 15px 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: 2rem;
            font-weight: bold;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2.5rem;
        }
        nav ul {
            display: flex;
            gap: 30px;
        }
        nav a {
            color: white;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: #666;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
        }
        main {
            padding: 30px 0;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 20px auto;
        }
        article {
            padding: 20px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            color: #3949ab;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e8eaf6;
        }
        h3 {
            font-size: 1.5rem;
            color: #5c6bc0;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #e3f2fd;
            padding: 15px;
            border-left: 5px solid #1a73e8;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .image-container {
            text-align: center;
            margin: 30px 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }
        .form-box {
            background-color: #f5f7ff;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .form-box h3 {
            color: #1a237e;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-box form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-box input, .form-box textarea, .form-box select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-box input:focus, .form-box textarea:focus, .form-box select:focus {
            outline: none;
            border-color: #1a73e8;
        }
        .form-box button {
            padding: 12px 20px;
            background-color: #1a73e8;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }
        .form-box button:hover {
            background-color: #0d47a1;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 10px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .star-rating label:hover,
        .star-rating input:checked ~ label {
            color: #ffc107;
        }
        .footer-links {
            background-color: #1a237e;
            color: white;
            padding: 40px 0;
            margin-top: 50px;
        }
        .web-link {
            display: inline-block;
            margin: 10px 15px;
            padding: 12px 20px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 8px;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-3px);
        }
        .web-link a {
            color: #bbdefb;
            font-weight: 500;
        }
        .footer-links .container {
            text-align: center;
        }
        footer {
            background-color: #0d1b2a;
            color: #e0e1dd;
            text-align: center;
            padding: 25px 0;
            font-size: 0.9rem;
        }
        footer p {
            margin-bottom: 10px;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav {
                display: none;
                width: 100%;
                margin-top: 20px;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .web-link {
                display: block;
                margin: 10px 0;
            }
        }
        .text-center {
            text-align: center;
        }
        .bold {
            font-weight: bold;
            color: #1a237e;
        }
        .spacer {
            margin: 40px 0;
            border-top: 1px dashed #ccc;
        }