* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #e53e3e;
            --light-color: #f7fafc;
            --text-color: #2d3748;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f8f9fa;
            font-size: 16px;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            position: relative;
        }
        .logo:after {
            content: "♟️";
            position: absolute;
            top: -5px;
            right: -35px;
            font-size: 1.8rem;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-color);
            cursor: pointer;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--secondary-color);
        }
        .breadcrumb span {
            color: var(--accent-color);
        }
        .nav-mobile {
            display: none;
            background-color: white;
            padding: 20px;
            box-shadow: var(--shadow);
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 999;
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2c5282 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .search-form {
            max-width: 600px;
            margin: 30px auto;
            background-color: white;
            border-radius: 50px;
            overflow: hidden;
            display: flex;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #c53030;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        .article-content {
            background-color: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: #718096;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            margin-top: 10px;
        }
        h2 {
            font-size: 2rem;
            margin-top: 40px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 30px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .intro {
            font-size: 1.2rem;
            background-color: var(--light-color);
            padding: 25px;
            border-radius: 8px;
            margin-bottom: 30px;
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background-color: #fffaf0;
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
            border-left: 4px solid #ed8936;
        }
        .highlight h4 {
            color: #dd6b20;
            margin-top: 0;
        }
        .strategy-box {
            background-color: #f0fff4;
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
            border-left: 4px solid #38a169;
        }
        .strategy-box h4 {
            color: #2f855a;
            margin-top: 0;
        }
        .featured-image {
            margin: 40px 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .featured-image img:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
        }
        .image-caption {
            font-style: italic;
            margin-top: 10px;
            color: #718096;
            font-size: 0.9rem;
        }
        blockquote {
            border-left: 4px solid var(--accent-color);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            font-size: 1.2rem;
            color: var(--secondary-color);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .data-table th, .data-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .data-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .data-table tr:nth-child(even) {
            background-color: var(--light-color);
        }
        .data-table tr:hover {
            background-color: #ebf8ff;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .sidebar {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 40px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
            margin-bottom: 20px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #f6ad55;
            margin: 15px 0;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-form select, .rating-form textarea, .rating-form input {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
        }
        .rating-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: var(--accent-color);
        }
        .quick-links {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
        .quick-links a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .quick-links i {
            color: var(--accent-color);
        }
        .comments-section {
            background-color: white;
            border-radius: 10px;
            padding: 40px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .comment-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        .comment-form input, .comment-form textarea {
            padding: 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
        }
        .comment-form textarea {
            grid-column: 1 / -1;
            min-height: 150px;
        }
        .comment-form button {
            grid-column: 1 / -1;
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background-color: var(--accent-color);
        }
        .comment {
            padding: 25px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 25px;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            font-size: 0.9rem;
            color: #718096;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary-color);
        }
        .internal-links {
            background-color: white;
            border-radius: 10px;
            padding: 40px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .web-link {
            display: inline-block;
            background-color: var(--light-color);
            padding: 12px 20px;
            margin: 0 10px 15px 0;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e2e8f0;
            transform: translateY(-3px);
        }
        .footer {
            background-color: var(--primary-color);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-column h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-column h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent-color);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #2d3748;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                padding: 15px 0;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .comment-form {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            .article-content, .sidebar, .comments-section, .internal-links {
                padding: 25px 20px;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .hero {
                padding: 40px 0;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: 0;
                padding: 15px;
            }
        }
        @media print {
            .header, .sidebar, .search-form, .comment-form, .rating-form, .footer {
                display: none;
            }
            body {
                font-size: 12pt;
                background: white;
                color: black;
            }
            .container {
                max-width: 100%;
                padding: 0;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }