* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Nirmala UI', 'Arial Unicode MS', sans-serif;
        }
        :root {
            --primary: #1a6fa3;
            --secondary: #29b6f6;
            --accent: #ff9800;
            --light: #e3f2fd;
            --dark: #0d47a1;
            --text: #333;
            --text-light: #666;
            --bg: #f9fdff;
            --card-bg: #fff;
            --shadow: rgba(0, 100, 150, 0.1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 18px;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--accent);
            margin-right: 10px;
        }
        .logo a {
            color: white;
        }
        .logo a:hover {
            text-decoration: none;
            color: var(--accent);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 12px 0;
            font-size: 0.95rem;
            border-bottom: 1px solid #ccc;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: var(--text-light);
        }
        main {
            padding: 2.5rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px var(--shadow);
        }
        .sidebar {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 1.8rem;
            box-shadow: 0 6px 20px var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1, h2, h3 {
            color: var(--dark);
            margin-top: 1.8rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary);
        }
        h3 {
            font-size: 1.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--light);
            padding: 1.2rem;
            border-radius: 10px;
            border-left: 5px solid var(--accent);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid #ffb300;
            margin: 1.5rem 0;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat {
            background: linear-gradient(145deg, var(--secondary), var(--primary));
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(41, 182, 246, 0.3);
            transition: transform 0.3s;
        }
        .stat:hover {
            transform: translateY(-5px);
        }
        .stat h4 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .figcaption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: var(--card-bg);
            border: 2px solid var(--light);
            border-radius: 10px;
            padding: 1.5rem;
            transition: all 0.3s;
        }
        .feature-card:hover {
            border-color: var(--secondary);
            box-shadow: 0 10px 20px var(--shadow);
        }
        .feature-card i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .interactive-section {
            background-color: var(--light);
            border-radius: 12px;
            padding: 2rem;
            margin: 2.5rem 0;
        }
        .interactive-section h3 {
            color: var(--dark);
            margin-top: 0;
        }
        .search-box, .comment-form, .rating-form {
            margin-top: 1.5rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid var(--secondary);
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: var(--dark);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 14px;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-block;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(41, 182, 246, 0.4);
            text-decoration: none;
            color: white;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .long-tail-links {
            background-color: var(--light);
            padding: 2.5rem 0;
            margin-top: 3rem;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.2rem;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--dark);
            font-weight: 600;
            display: block;
        }
        footer {
            background: linear-gradient(135deg, var(--dark), #000);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .copyright {
            font-size: 0.95rem;
            opacity: 0.9;
        }
        .social-links {
            display: flex;
            gap: 1.5rem;
        }
        .social-links a {
            color: white;
            font-size: 1.5rem;
        }
        .social-links a:hover {
            color: var(--accent);
            transform: scale(1.2);
        }
        @media (max-width: 768px) {
            body {
                font-size: 16px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            nav a {
                display: block;
                padding: 15px;
            }
            .hamburger {
                display: block;
            }
            .content-area, .sidebar {
                padding: 1.5rem;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .footer-container {
                flex-direction: column;
                text-align: center;
            }
        }