* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            padding-bottom: 1px;
        }
        a { color: #2c5aa0; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #d4af37; 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: 800; }
        .highlight { background-color: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .emoji { font-size: 1.2em; }
        .last-updated { font-size: 0.9em; color: #666; font-style: italic; margin-top: 10px; }
        .site-header {
            background: linear-gradient(to right, #0c2461, #1e3799);
            color: white;
            padding: 1rem 0;
            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;
        }
        .my-logo {
            font-family: 'Trebuchet MS', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffd700;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            letter-spacing: 1px;
        }
        .my-logo span { color: #fff; }
        .my-logo:hover { color: #fff; text-decoration: none; }
        .breadcrumb {
            padding: 10px 0;
            background-color: #e8eff7;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d9e6;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1e3799; }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li { margin-left: 1.8rem; }
        .nav-links a {
            color: white;
            font-weight: 600;
            font-size: 1rem;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #ffd700;
            border-bottom-color: #ffd700;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-search-form {
            display: flex;
            margin-left: 2rem;
        }
        .nav-search-form input[type="search"] {
            padding: 8px 12px;
            border: none;
            border-radius: 4px 0 0 4px;
            min-width: 200px;
        }
        .nav-search-form button {
            background-color: #ffd700;
            color: #0c2461;
            border: none;
            padding: 8px 15px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .nav-search-form button:hover { background-color: #ffed4e; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 30px auto;
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: #0c2461;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #d4af37;
            padding-bottom: 15px;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #1e3799;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 8px;
            border-bottom: 1px dashed #c0c0c0;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: #2c3e50;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: #34495e;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        .article-content li { margin-bottom: 0.5rem; }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            border: 5px solid #f0f0f0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
        }
        .sidebar h3 {
            color: #0c2461;
            margin-bottom: 1.2rem;
            padding-bottom: 8px;
            border-bottom: 2px solid #ffd700;
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li { margin-bottom: 0.8rem; }
        .sidebar-links a { display: block; padding: 8px 12px; background: #f8f9fa; border-radius: 5px; }
        .sidebar-links a:hover { background: #e9ecef; text-decoration: none; }
        .user-interaction {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            margin-top: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .user-interaction h2 { color: #0c2461; margin-bottom: 1.5rem; }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #2c5aa0;
            outline: none;
            box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.2);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active { color: #ffd700; }
        .btn-submit {
            background: linear-gradient(to right, #1e3799, #0c2461);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn-submit:hover {
            background: linear-gradient(to right, #0c2461, #1a2980);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .site-footer {
            background: #0c2461;
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ffd700;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #ccc; }
        .footer-links a:hover { color: #ffd700; }
        friend-link {
            display: block;
            font-style: italic;
            color: #a0c1ff;
            margin-top: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #1e3799;
            font-size: 0.9em;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
            .nav-search-form input[type="search"] { min-width: 150px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-links {
                position: fixed;
                background: #0c2461;
                top: 80px;
                left: 0;
                width: 100%;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
                z-index: 999;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .nav-links li { margin: 12px 0; }
            .nav-search-form { margin-left: 0; margin-top: 15px; order: 3; width: 100%; }
            .header-container { flex-wrap: wrap; }
            .article-content h1 { font-size: 2.2rem; }
            .article-content { padding: 1.5rem; }
        }
        @media (max-width: 480px) {
            .my-logo { font-size: 1.8rem; }
            .article-content h1 { font-size: 1.9rem; }
            .article-content h2 { font-size: 1.7rem; }
        }