:root {
            --primary: #1a237e;
            --primary-light: #534bae;
            --primary-dark: #000051;
            --accent: #ff5722;
            --accent-light: #ff8a50;
            --text-dark: #212121;
            --text-light: #757575;
            --background: #f5f5f5;
            --surface: #ffffff;
            --divider: #e0e0e0;
            --success: #4caf50;
            --warning: #ff9800;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--background);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            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: 1rem 0;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            color: white;
        }
        .logo span {
            color: var(--accent-light);
        }
        .logo:hover {
            transform: scale(1.02);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--primary-dark);
            padding: 1rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(255,255,255,0.05);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #bbdefb;
        }
        .breadcrumb span {
            color: #e3f2fd;
            margin: 0 0.5rem;
        }
        .hero {
            padding: 4rem 0;
            background: linear-gradient(rgba(26, 35, 126, 0.9), rgba(26, 35, 126, 0.7)), url('https://images.unsplash.com/photo-1591280447086-6586ba83c308?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            border-bottom: 5px solid var(--accent);
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        article {
            background: var(--surface);
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article h2 {
            color: var(--primary-dark);
            font-size: 2.2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        article h3 {
            color: var(--primary);
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
        }
        article p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        article strong {
            color: var(--primary-dark);
            background: linear-gradient(120deg, #ffecb3 0%, #ffecb3 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            padding: 0.1rem 0.3rem;
        }
        .highlight-box {
            background: #e8eaf6;
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .feature-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 2.5rem 0;
            border: 5px solid var(--divider);
            transition: var(--transition);
        }
        .feature-img:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: var(--surface);
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.9rem 1.2rem;
            border: 1px solid var(--divider);
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary), var(--primary-light));
            color: white;
            border: none;
            padding: 1rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, var(--primary-dark), var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--warning);
        }
        .comment {
            background: #fafafa;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary-light);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .internal-links {
            background: var(--surface);
            padding: 3rem;
            margin: 2rem 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .internal-links h2 {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: #f1f8e9;
            padding: 1.2rem;
            border-radius: 8px;
            border: 1px dashed #c5e1a5;
            transition: var(--transition);
        }
        .web-link:hover {
            background: #e8f5e9;
            transform: translateX(5px);
        }
        footer {
            background: var(--primary-dark);
            color: #e3f2fd;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-section a {
            color: #bbdefb;
            display: block;
            margin-bottom: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #90caf9;
        }
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .content-wrapper {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                padding: 1rem 0;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero {
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            article {
                padding: 2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
            .internal-links {
                padding: 2rem 1.5rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }