* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { color: #0d6efd; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #0a58ca; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .emoji { font-size: 1.2em; }
        .last-updated { font-size: 0.9rem; color: #6c757d; margin-bottom: 2rem; }
        .site-header {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            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-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { text-decoration: none; color: #ffd700; }
        .my-logo span:first-child { color: #ffd700; }
        .my-logo span:last-child { font-style: italic; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover { color: #ffd700; text-decoration: none; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffd700;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1e3c72;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        main {
            padding: 3rem 0;
            background: white;
            min-height: 80vh;
        }
        .article-header {
            margin-bottom: 3rem;
            border-bottom: 3px solid #0d6efd;
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            color: #1e3c72;
            line-height: 1.2;
        }
        .article-header .lead {
            font-size: 1.3rem;
            color: #495057;
            max-width: 900px;
        }
        .article-content {
            font-size: 1.1rem;
            color: #2d3748;
        }
        .article-content p {
            margin-bottom: 1.8rem;
            text-align: justify;
            hyphens: auto;
        }
        .article-content h2 {
            font-size: 2.2rem;
            color: #1e3c72;
            margin: 3.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9ecef;
        }
        .article-content h3 {
            font-size: 1.8rem;
            color: #2a5298;
            margin: 2.5rem 0 1.2rem;
        }
        .article-content h4 {
            font-size: 1.5rem;
            color: #4a6fa5;
            margin: 2rem 0 1rem;
        }
        .article-content blockquote {
            border-left: 5px solid #0d6efd;
            padding-left: 2rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background-color: #f8f9fa;
            padding: 1.5rem 2rem;
            border-radius: 0 8px 8px 0;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.8rem;
            padding-left: 2.5rem;
        }
        .article-content li { margin-bottom: 0.7rem; }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid #ffd700;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .figure-wrapper {
            margin: 3rem auto;
            text-align: center;
            max-width: 800px;
        }
        .figure-wrapper img {
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            border: 1px solid #dee2e6;
            margin-bottom: 1rem;
        }
        .figcaption {
            font-size: 0.95rem;
            color: #6c757d;
            font-style: italic;
            padding: 0 1rem;
        }
        .content-link {
            background-color: rgba(13, 110, 253, 0.1);
            padding: 0.1em 0.3em;
            border-radius: 4px;
            font-weight: 600;
        }
        .content-link:hover {
            background-color: rgba(13, 110, 253, 0.2);
            text-decoration: none;
        }
        .interactive-module {
            background-color: #f8f9fa;
            border-radius: 12px;
            padding: 2.5rem;
            margin: 4rem 0;
            border: 1px solid #dee2e6;
        }
        .module-title {
            font-size: 1.8rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .module-title i { color: #0d6efd; }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #0d6efd;
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }
        button, .btn {
            background: linear-gradient(to right, #1e3c72, #2a5298);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #2a5298, #3a6bc5);
            transform: translateY(-2px);
            text-decoration: none;
            color: white;
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: rtl; 
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 0;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #ffd700; }
        .site-footer {
            background: #1a1a2e;
            color: #e9ecef;
            padding: 3rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: #ffd700;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #adb5bd;
            transition: color 0.3s, padding-left 0.3s;
            display: block;
        }
        .footer-links a:hover {
            color: #ffd700;
            padding-left: 8px;
            text-decoration: none;
        }
        friend-link {
            display: block;
            font-size: 1rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #2d3748;
            color: #adb5bd;
        }
        friend-link a {
            color: #4dabf7;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            color: #6c757d;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .article-header h1 { font-size: 2.3rem; }
            .article-content h2 { font-size: 1.9rem; }
            .article-content h3 { font-size: 1.6rem; }
            .article-content h4 { font-size: 1.3rem; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 15px; }
            .article-header h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .interactive-module { padding: 1.5rem; }
            .form-grid { grid-template-columns: 1fr; }
            .header-inner { flex-wrap: wrap; }
        }
        @media (max-width: 480px) {
            .article-header h1 { font-size: 1.8rem; }
            .article-content { font-size: 1rem; }
            .module-title { font-size: 1.5rem; }
        }