* { 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%);
            background-attachment: fixed;
            max-width: 1400px;
            margin: 0 auto;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.05);
        }
        a { color: #1a6bc4; text-decoration: none; transition: color 0.3s, transform 0.2s; }
        a:hover { color: #e63946; transform: translateY(-1px); }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 95%; max-width: 1200px; margin: 0 auto; padding: 0 15px; }
        .site-header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            font-family: 'Impact', 'Arial Black', sans-serif;
            background: linear-gradient(45deg, #FFD700, #FFFFFF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .my-logo:hover { transform: scale(1.03); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: #FFD700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9f2fa;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #c5d9ed;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #888;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1a6bc4; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        article {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #FFD700;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 2.5rem 0 1rem;
            padding-left: 10px;
            border-left: 5px solid #e63946;
        }
        h3 {
            font-size: 1.5rem;
            color: #457b9d;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #1d3557;
            margin: 1.5rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #2a5298;
            margin-bottom: 2.5rem;
        }
        strong { color: #1d3557; }
        em { color: #666; }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            border-left: 5px solid #9c27b0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .img-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .img-container img {
            border-radius: 10px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            transition: transform 0.5s;
        }
        .img-container img:hover { transform: scale(1.01); }
        .img-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .link-list {
            background-color: #f1f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .link-list h3 { margin-top: 0; }
        .link-list ul { list-style-position: inside; }
        .link-list li { margin-bottom: 0.7rem; }
        aside {
            background-color: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            color: #1e3c72;
            font-size: 1.3rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #ddd;
            margin-bottom: 1rem;
        }
        .search-form input {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #c5d9ed;
            border-radius: 50px;
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .search-form button {
            width: 100%;
            padding: 0.9rem;
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover { background: linear-gradient(90deg, #2a5298, #3a66b8); }
        .quick-facts ul {
            list-style: none;
        }
        .quick-facts li {
            padding: 0.7rem 0;
            border-bottom: 1px dotted #eee;
            display: flex;
            align-items: center;
        }
        .quick-facts i {
            color: #2a5298;
            margin-right: 10px;
            width: 20px;
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 2.5rem;
            border-radius: 12px;
            margin-top: 3rem;
            border: 1px solid #e9ecef;
        }
        .interactive-section h2 { text-align: center; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #bcd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #2a5298;
            outline: none;
            box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.1);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 2rem;
            color: #FFD700;
            direction: rtl;
        }
        .rating input { display: none; }
        .rating label {
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
        }
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffcc00;
        }
        .rating input:checked ~ label { color: #ffcc00; }
        .btn-submit {
            display: block;
            width: 100%;
            padding: 1rem;
            background: linear-gradient(90deg, #e63946, #d90429);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .btn-submit:hover {
            background: linear-gradient(90deg, #d90429, #c1121f);
            transform: translateY(-2px);
        }
        .site-footer {
            background: #1d3557;
            color: #f1faee;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 5px solid #FFD700;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 {
            color: #FFD700;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #a8dadc;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .footer-links a:hover { color: #FFD700; }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 1rem;
            border-left: 4px solid #FFD700;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #a8dadc;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .main-nav {
                width: 100%;
                order: 3;
                margin-top: 1.5rem;
                display: none;
            }
            .main-nav.active { display: block; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; }
            .main-nav a {
                padding: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            article, aside { padding: 1.5rem; }
            .content-wrapper { gap: 2rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, aside, .interactive-section {
            animation: fadeIn 0.8s ease-out;
        }