* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #d32f2f;
        }
        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, #0a2e5c 0%, #122a4d 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 a {
            font-size: 2rem;
            font-weight: 800;
            color: #ffcc00;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a:hover {
            color: #fff;
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav.desktop-nav a {
            color: #fff;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        nav.desktop-nav a:hover {
            color: #ffcc00;
        }
        nav.desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffcc00;
            transition: width 0.3s ease;
        }
        nav.desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #0a2e5c;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.05);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #0066cc;
        }
        .breadcrumb span {
            color: #777;
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: #0a2e5c;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .meta-info i {
            margin-right: 0.5rem;
        }
        .article-image {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            max-width: 800px;
        }
        .article-image img {
            width: 100%;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.5rem;
            background: #f5f5f5;
        }
        .content-section {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        h2, h3 {
            color: #0a2e5c;
            margin-top: 1.8rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #ffcc00;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #d32f2f;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(to right, #fff8e1, #ffecb3);
            border-left: 4px solid #ffcc00;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box strong {
            color: #d32f2f;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .term {
            font-weight: bold;
            color: #0a2e5c;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        .interactive-box {
            background: #f1f8ff;
            border: 2px dashed #0066cc;
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            text-align: center;
        }
        .interactive-box h3 {
            color: #0066cc;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 600px;
            margin: 1.5rem auto;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(to right, #d32f2f, #b71c1c);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(211, 47, 47, 0.4);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #ccc;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: #ffcc00;
        }
        .footer-links {
            background: #e9ecef;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem;
        }
        .web-link a {
            color: #555;
            background: white;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        .web-link a:hover {
            background: #0066cc;
            color: white;
        }
        footer {
            background: #0a2e5c;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav.desktop-nav {
                display: none;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .interactive-box {
                padding: 1.5rem;
            }
            form {
                padding: 0 1rem;
            }
            .footer-links {
                text-align: center;
            }
            .web-link {
                display: block;
                margin: 0.5rem 0;
            }
        }