* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --secondary: #e8f0fe;
            --accent: #34a853;
            --text: #202124;
            --text-light: #5f6368;
            --bg: #ffffff;
            --bg-alt: #f8f9fa;
            --border: #dadce0;
            --shadow: rgba(60, 64, 67, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text);
            background-color: var(--bg);
            line-height: 1.6;
            font-size: 1rem;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .site-header {
            background-color: var(--bg);
            box-shadow: 0 2px 10px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .breadcrumb {
            background-color: var(--bg-alt);
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 8px;
            color: var(--text-light);
        }
        .nav-primary {
            display: flex;
            align-items: center;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-menu a {
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .nav-menu a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text);
        }
        .search-box {
            margin-left: 25px;
            display: flex;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: white;
        }
        .search-box input {
            padding: 8px 12px;
            border: none;
            min-width: 200px;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 8px 15px;
            cursor: pointer;
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }
        .article-hero {
            padding: 40px 20px;
            background: linear-gradient(135deg, var(--secondary) 0%, #ffffff 100%);
            text-align: center;
            border-bottom: 1px solid var(--border);
        }
        .article-hero h1 {
            font-size: 2.8rem;
            color: var(--text);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-hero .meta {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 25px;
        }
        .article-hero .meta i {
            margin-right: 5px;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px;
            flex: 1;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            font-size: 1.1rem;
        }
        .sidebar {
            background: var(--bg-alt);
            padding: 25px;
            border-radius: var(--radius);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .article-body h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
            color: var(--text);
        }
        .article-body h3 {
            font-size: 1.5rem;
            margin: 30px 0 15px;
            color: var(--primary-dark);
        }
        .article-body p {
            margin-bottom: 1.5em;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .article-body em {
            background: linear-gradient(transparent 60%, #fff176 60%);
            font-style: normal;
            padding: 0 2px;
        }
        .key-takeaways {
            background: var(--secondary);
            border-left: 5px solid var(--accent);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .key-takeaways h3 {
            margin-top: 0;
            color: var(--accent);
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 1px dashed var(--primary);
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--radius);
            box-shadow: 0 5px 15px var(--shadow);
            border: 1px solid var(--border);
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .rule-change-box {
            background: #fff8e1;
            border: 1px solid #ffd54f;
            padding: 20px;
            border-radius: var(--radius);
            margin: 25px 0;
        }
        .user-interaction {
            background: var(--bg-alt);
            padding: 30px;
            border-radius: var(--radius);
            margin: 40px 0;
        }
        .user-interaction h2 {
            text-align: center;
            margin-top: 0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        .interaction-form {
            background: white;
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: 0 5px 15px var(--shadow);
        }
        .interaction-form h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
            margin: 10px 0;
        }
        .star-rating i {
            transition: var(--transition);
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .btn-submit {
            background: var(--accent);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .btn-submit:hover {
            background: #2e7d32;
        }
        .footer-links-section {
            background: var(--bg-alt);
            padding: 40px 20px;
            border-top: 1px solid var(--border);
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .web-link {
            background: white;
            padding: 15px;
            border-radius: var(--radius);
            border-left: 4px solid var(--primary);
        }
        .web-link a {
            font-weight: 600;
            display: block;
        }
        .site-footer {
            background: var(--text);
            color: white;
            padding: 30px 20px;
            text-align: center;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 20px;
            color: #bdc1c6;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu,
            .search-box {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--bg);
                padding: 20px;
                box-shadow: 0 5px 10px var(--shadow);
                flex-direction: column;
                gap: 15px;
            }
            .nav-menu.active,
            .search-box.active {
                display: flex;
            }
            .nav-menu {
                align-items: flex-start;
            }
            .search-box {
                margin: 15px 0 0;
            }
            .search-box input {
                min-width: auto;
                flex: 1;
            }
            .article-hero h1 {
                font-size: 2.2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }