:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #fbbf24;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --white: #ffffff;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .my-logo span {
            color: var(--secondary-color);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-input {
            flex-grow: 1;
            padding: 10px 15px;
            border: 2px solid var(--primary-color);
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--secondary-color);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .main-nav {
            background-color: var(--primary-color);
        }
        .nav-list {
            display: flex;
            list-style: none;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            color: var(--white);
            padding: 1rem 1.5rem;
            display: block;
            transition: var(--transition);
            font-weight: 500;
        }
        .nav-list a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        .main-content {
            background-color: var(--white);
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background-color: var(--white);
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            align-self: start;
        }
        .sidebar h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li {
            margin-bottom: 0.75rem;
        }
        .sidebar-links a {
            color: var(--text-dark);
            transition: var(--transition);
            display: block;
            padding: 0.5rem;
            border-radius: 4px;
        }
        .sidebar-links a:hover {
            background-color: var(--bg-light);
            color: var(--secondary-color);
            padding-left: 1rem;
        }
        .sidebar-links a i {
            margin-right: 8px;
            color: var(--primary-color);
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        h3 {
            color: var(--text-dark);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--secondary-color);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.75rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-color);
            background-color: rgba(30, 58, 138, 0.05);
            padding: 1.5rem;
            border-left: 4px solid var(--secondary-color);
            border-radius: 4px;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(251, 191, 36, 0.2);
            padding: 1rem;
            border-radius: 6px;
            margin: 1.5rem 0;
            border-left: 4px solid var(--accent-color);
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            color: white;
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            display: block;
            line-height: 1;
        }
        .stat-card .label {
            font-size: 0.9rem;
            opacity: 0.9;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }
        .internal-links {
            background-color: var(--bg-light);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .links-grid a {
            display: flex;
            align-items: center;
            padding: 0.75rem;
            background-color: var(--white);
            border-radius: 6px;
            transition: var(--transition);
            color: var(--text-dark);
            border: 1px solid #e5e7eb;
        }
        .links-grid a:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            color: var(--secondary-color);
            border-color: var(--secondary-color);
        }
        .links-grid i {
            margin-right: 10px;
            color: var(--primary-color);
        }
        .comment-form, .rating-form {
            background-color: var(--bg-light);
            padding: 2rem;
            border-radius: 8px;
            margin: 3rem 0;
        }
        .form-title {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        .submit-btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            color: #d1d5db;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            padding: 0 5px;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent-color);
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #e5e7eb;
        }
        .site-footer {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            transition: var(--transition);
            opacity: 0.9;
        }
        .footer-links a:hover {
            opacity: 1;
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 1rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.8;
        }
        @media (max-width: 992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                box-shadow: var(--shadow);
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                padding: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 1 1 100%;
                margin-top: 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }