* {
            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: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        h1, h2, h3, h4 {
            line-height: 1.2;
            margin-bottom: 1rem;
            color: #2c3e50;
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid #3498db;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2980b9;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #16a085;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.25rem;
            color: #555;
            font-weight: 300;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .term {
            font-weight: bold;
            color: #e74c3c;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin-top: 2rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .site-header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: white;
        }
        .logo span {
            color: #f1c40f;
        }
        .main-nav {
            display: flex;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255,255,255,0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background-color: #2c3e50;
            padding: 1.5rem 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 30px;
            overflow: hidden;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-button {
            background-color: #e74c3c;
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.2rem;
        }
        .search-button:hover {
            background-color: #c0392b;
        }
        main {
            padding: 2rem 0;
            background-color: white;
            box-shadow: 0 0 15px rgba(0,0,0,0.05);
            border-radius: 8px;
        }
        .article-content {
            padding: 0 2rem;
        }
        @media (max-width: 768px) {
            .article-content {
                padding: 0 1rem;
            }
        }
        .featured-image {
            margin: 2rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .info-box {
            background-color: #e8f4fc;
            border-left: 5px solid #3498db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 5px 5px 0;
        }
        .info-box h4 {
            margin-top: 0;
            color: #2980b9;
        }
        .rule-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
        }
        .rule-table th, .rule-table td {
            border: 1px solid #bdc3c7;
            padding: 0.8rem;
            text-align: left;
        }
        .rule-table th {
            background-color: #34495e;
            color: white;
        }
        .rule-table tr:nth-child(even) {
            background-color: #f2f2f2;
        }
        .sidebar {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            border-bottom: 2px solid #ddd;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            position: relative;
        }
        .sidebar li:before {
            content: "▶";
            position: absolute;
            left: 0;
            color: #3498db;
            font-size: 0.8rem;
        }
        .sidebar a:hover {
            color: #e74c3c;
        }
        .user-interaction {
            background-color: #f5f7fa;
            padding: 2rem;
            margin-top: 3rem;
            border-radius: 8px;
            border-top: 4px solid #9b59b6;
        }
        .rating-widget, .comment-form {
            margin-bottom: 2rem;
        }
        .rating-title, .comment-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.3rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active {
            color: #f39c12;
        }
        .rating-form, .comment-form form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background-color: #27ae60;
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background-color 0.3s;
        }
        .submit-button:hover {
            background-color: #219653;
        }
        .footer-links-section {
            background-color: #2c3e50;
            padding: 2.5rem 0;
            color: #ecf0f1;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }
        @media (max-width: 768px) {
            .web-links-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 4px;
            text-align: center;
            transition: background-color 0.3s;
        }
        .web-link:hover {
            background-color: rgba(52, 152, 219, 0.3);
        }
        .web-link a {
            color: #3498db;
            font-weight: 600;
        }
        .web-link a:hover {
            color: #f1c40f;
        }
        .site-footer {
            background-color: #1a252f;
            color: #bdc3c7;
            text-align: center;
            padding: 1.5rem 0;
            font-size: 0.9rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .copyright {
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.3rem; }
            .lead { font-size: 1.1rem; }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #1a2980;
                flex-direction: column;
                padding: 1rem;
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hamburger {
                display: block;
            }
            .content-wrapper {
                gap: 1.5rem;
            }
        }