* {
            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-color: #f8fafc;
            font-size: 1.05rem;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            letter-spacing: 1px;
            font-family: 'Arial Rounded MT Bold', sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            transition: transform 0.3s;
        }
        .logo a:hover {
            transform: scale(1.03);
        }
        .logo a::first-letter {
            color: #ffeb3b;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 25px;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        nav ul li a:hover, nav ul li a.active {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 12px 0;
            margin-bottom: 30px;
            border-bottom: 1px solid #bbdefb;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
        }
        .breadcrumb li {
            margin-right: 15px;
            font-size: 0.95rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 15px;
            color: #666;
        }
        .breadcrumb a {
            color: #1565c0;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 30px 0;
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 40px;
        }
        article {
            padding: 0 30px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #26d0ce;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 40px 0 20px;
            padding-left: 15px;
            border-left: 6px solid #1a2980;
        }
        h3 {
            font-size: 1.6rem;
            color: #3949ab;
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #e8f4fd;
            border-left: 5px solid #2196f3;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: 600;
            color: #0d47a1;
        }
        strong {
            color: #1a237e;
            font-weight: 700;
        }
        em {
            color: #d81b60;
            font-style: italic;
        }
        .feature-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .interactive-section {
            background: linear-gradient(to right, #f5f7fa, #c3cfe2);
            padding: 30px;
            border-radius: 12px;
            margin: 40px 0;
            box-shadow: inset 0 0 10px rgba(0,0,0,0.05);
        }
        .section-title {
            font-size: 1.8rem;
            color: #1a237e;
            margin-bottom: 25px;
            text-align: center;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #b0bec5;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #1a2980;
            outline: none;
        }
        .btn {
            background: linear-gradient(to right, #1a2980, #26d0ce);
            color: white;
            border: none;
            padding: 14px 28px;
            font-size: 1.1rem;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 700;
            transition: all 0.3s ease;
            display: inline-block;
            text-decoration: none;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(26, 41, 128, 0.3);
        }
        .rating {
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 20px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            margin: 0 5px;
            transition: color 0.2s;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffc107;
        }
        .comment-box {
            height: 150px;
            resize: vertical;
        }
        .web-links {
            background-color: #f1f8e9;
            padding: 40px 0;
            margin-top: 50px;
            border-top: 2px solid #c5e1a5;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .web-link {
            background: white;
            padding: 18px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            text-align: center;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: #2e7d32;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
        }
        .web-link a:hover {
            text-decoration: underline;
            color: #1b5e20;
        }
        footer {
            background-color: #263238;
            color: #eceff1;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #546e7a;
            width: 100%;
            font-size: 0.95rem;
            color: #b0bec5;
        }
        @media (max-width: 1024px) {
            .web-links-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1a2980;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 10px 0;
                margin-left: 0;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 0 15px;
            }
            .feature-img {
                width: 100%;
            }
            .web-links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.9rem;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .web-links-grid {
                grid-template-columns: 1fr;
            }
            .interactive-section {
                padding: 20px;
            }
        }