* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #0d47a1;
            --primary-dark: #002171;
            --primary-light: #5472d3;
            --accent: #ff9800;
            --accent-dark: #c66900;
            --text-dark: #212121;
            --text-light: #757575;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --border: #e0e0e0;
            --success: #4caf50;
            --warning: #ffc107;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--bg-light);
            font-size: 18px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-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 0;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a {
            color: inherit;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo-text {
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 5px;
            position: relative;
        }
        .desktop-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px;
        }
        .search-bar {
            display: flex;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 8px 20px;
            width: 300px;
        }
        .search-bar input {
            border: none;
            background: transparent;
            width: 100%;
            font-size: 1rem;
            outline: none;
        }
        .search-bar button {
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
            font-size: 1.1rem;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            background: none;
            border: none;
        }
        .mobile-nav {
            display: none;
            background: var(--bg-white);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            padding: 20px;
            border-top: 2px solid var(--border);
            z-index: 999;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .mobile-nav a {
            font-weight: 600;
            font-size: 1.2rem;
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .mobile-search {
            display: none;
            margin-top: 20px;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: var(--text-light);
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
            font-size: 0.8rem;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .content {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-box {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-box h3 {
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            color: var(--primary-dark);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.5rem;
            color: var(--text-dark);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 25px;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 30px;
            padding-left: 20px;
            border-left: 5px solid var(--accent);
        }
        .highlight {
            background-color: rgba(255, 152, 0, 0.1);
            padding: 20px;
            border-radius: var(--radius);
            margin: 25px 0;
            border-left: 5px solid var(--accent);
        }
        .highlight strong {
            color: var(--accent-dark);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .key-term {
            color: var(--primary);
            font-weight: 700;
            background: rgba(13, 71, 161, 0.05);
            padding: 2px 6px;
            border-radius: 4px;
        }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            font-size: 1.1rem;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(13, 71, 161, 0.2);
        }
        .btn-accent {
            background: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
        }
        .rating-stars {
            color: var(--warning);
            font-size: 1.3rem;
            margin: 10px 0;
        }
        .rating-stars .inactive {
            color: var(--border);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: var(--primary-dark);
        }
        input, textarea, select {
            padding: 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(13, 71, 161, 0.1);
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 20px;
        }
        .form-row .form-group {
            flex: 1;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
            object-fit: cover;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: -20px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 0 0 1px var(--border);
        }
        th {
            background: var(--primary);
            color: white;
            font-weight: 600;
            text-align: left;
            padding: 18px 15px;
        }
        td {
            padding: 15px;
            border-bottom: 1px solid var(--border);
        }
        tr:hover {
            background-color: rgba(13, 71, 161, 0.03);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .web-link {
            background: var(--bg-white);
            padding: 20px;
            border-radius: var(--radius);
            border-left: 5px solid var(--primary-light);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .web-link a {
            font-weight: 600;
            font-size: 1.1rem;
            display: block;
            margin-bottom: 10px;
        }
        .web-link p {
            margin: 0;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        footer {
            background: var(--primary-dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-col a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .desktop-nav, .search-bar {
                display: none;
            }
            .mobile-search {
                display: block;
            }
            .logo {
                font-size: 1.8rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .content {
                padding: 25px;
            }
            .form-row {
                flex-direction: column;
                gap: 15px;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.9rem;
            }
            body {
                font-size: 16px;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }