:root {
            --primary: #2a4365;
            --secondary: #38b2ac;
            --accent: #ed8936;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--accent);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: var(--accent);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: var(--dark);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            border-top: 1px solid var(--gray);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 10px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav a:hover {
            color: var(--accent);
            padding-left: 15px;
        }
        .breadcrumb {
            background: #e2e8f0;
            padding: 12px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--gray);
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: 40px 20px;
            text-align: center;
            color: white;
            margin-bottom: 40px;
        }
        .search-section h2 {
            margin-bottom: 20px;
            font-size: 2.2rem;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
        }
        .search-box input {
            flex-grow: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-box button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
        }
        .search-box button:hover {
            background: #dd6b20;
        }
        main {
            padding: 20px 0 50px;
        }
        .article-header {
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .meta-info {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 30px;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 30px 0 15px;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .highlight-box {
            background: #ebf8ff;
            border-left: 5px solid var(--secondary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 4px 4px 0;
        }
        .highlight-box h3 {
            color: var(--secondary);
            margin-top: 0;
        }
        .figure {
            margin: 40px 0;
            text-align: center;
        }
        .figure img {
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 0 auto 15px;
        }
        .figure figcaption {
            font-style: italic;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .content-link {
            color: var(--secondary);
            font-weight: 600;
        }
        .content-link:hover {
            text-decoration: underline;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--accent);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e2e8f0;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .rating-widget form, .comment-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-widget input, .comment-widget input, .comment-widget textarea {
            padding: 12px 15px;
            border: 1px solid #cbd5e0;
            border-radius: 4px;
            font-family: inherit;
        }
        .comment-widget textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-widget button, .comment-widget button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover, .comment-widget button:hover {
            background: #2c7a7b;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 10px 0;
        }
        .star-rating i {
            color: #e2e8f0;
            cursor: pointer;
            font-size: 1.5rem;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f6ad55;
        }
        .toc ul {
            list-style: none;
            padding-left: 10px;
        }
        .toc li {
            margin-bottom: 10px;
        }
        .toc a {
            color: var(--gray);
            display: block;
            padding: 8px 0;
            border-left: 3px solid transparent;
            padding-left: 10px;
        }
        .toc a:hover, .toc a.active {
            color: var(--primary);
            border-left-color: var(--accent);
            background: #f7fafc;
        }
        .footer-links-section {
            background: #edf2f7;
            padding: 40px 20px;
            margin-top: 50px;
        }
        .footer-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
        }
        .web-link {
            background: white;
            padding: 15px;
            border-radius: 6px;
            text-align: center;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--primary);
            font-weight: 600;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 40px 20px;
            text-align: center;
        }
        .copyright {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .content-area {
                gap: 30px;
            }
            .search-section h2 {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }