* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        ul {
            list-style: none;
        }
        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, #1e3c72, #2a5298);
            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: 1.8rem;
            font-weight: 700;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #4fc3f7;
        }
        .logo:hover {
            opacity: 0.9;
        }
        nav.desktop-nav ul {
            display: flex;
            gap: 2rem;
        }
        nav.desktop-nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        nav.desktop-nav a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e3f2fd;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 0.5rem;
            color: #666;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: #2a5298;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-nav a {
            color: white;
            display: block;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        main {
            padding: 2rem 0;
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            margin: 2rem auto;
        }
        .article-header {
            text-align: center;
            padding-bottom: 2rem;
            border-bottom: 3px solid #1e3c72;
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1rem;
        }
        .article-meta {
            color: #666;
            font-size: 0.9rem;
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .content-section {
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #c5cae9;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #e8f5e9;
            padding: 1.5rem;
            border-left: 5px solid #4caf50;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 5px;
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
        }
        .featured-image img {
            border-radius: 12px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .featured-image img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .form-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .form-box {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .form-box h3 {
            color: #1e3c72;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus {
            outline: none;
            border-color: #1a73e8;
            box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
        }
        button {
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: linear-gradient(90deg, #2a5298, #1e3c72);
            transform: translateY(-2px);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .stars i {
            color: #ffc107;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .stars i:hover {
            color: #ff9800;
        }
        .internal-links {
            background: #e3f2fd;
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 10px;
        }
        .internal-links h2 {
            text-align: center;
            color: #1a237e;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 6px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: #1565c0;
            font-weight: 500;
            display: block;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }
        .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 1.5rem;
            width: 100%;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav.desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .web-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .web-links {
                grid-template-columns: 1fr;
            }
            .article-meta {
                flex-direction: column;
                align-items: center;
            }
        }