* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a237e;
            --secondary: #e8eaf6;
            --accent: #ff9800;
            --text: #212121;
            --light: #f5f5f5;
            --dark: #0d0d4f;
            --success: #4caf50;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: var(--accent); }
        .logo a:hover { color: var(--accent); }
        .main-nav ul {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: var(--secondary);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: var(--primary);
        }
        .breadcrumb a:hover { color: var(--accent); }
        .hero {
            text-align: center;
            padding: 3rem 0;
            background: linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.9)), url('https://images.unsplash.com/photo-1585506936724-4b9c3b6b7c1f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            margin-bottom: 3rem;
            border-radius: var(--border-radius);
        }
        .hero h1 {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 1.5rem;
            color: #444;
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .search-box h2 {
            margin-bottom: 1rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: center;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1rem;
            border: 2px solid var(--secondary);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
        }
        .search-form input:focus { border-color: var(--primary); }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-form button:hover { background: var(--dark); }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .content-area { grid-template-columns: 1fr; }
        }
        .main-content { background: white; padding: 2.5rem; border-radius: var(--border-radius); box-shadow: var(--shadow); }
        .sidebar { background: white; padding: 2rem; border-radius: var(--border-radius); box-shadow: var(--shadow); align-self: start; }
        h1, h2, h3, h4 { color: var(--primary); margin-bottom: 1rem; line-height: 1.3; }
        h2 { font-size: 2.2rem; border-bottom: 2px solid var(--secondary); padding-bottom: 0.5rem; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; margin-top: 2rem; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; }
        p { margin-bottom: 1.2rem; }
        .lead { font-size: 1.25rem; font-weight: 500; color: #333; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.4rem; border-radius: 4px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .article-image {
            margin: 2rem auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background: var(--secondary);
            color: #555;
        }
        .feature-list, .strategy-list { padding-left: 1.5rem; margin-bottom: 1.5rem; }
        .feature-list li, .strategy-list li { margin-bottom: 0.8rem; position: relative; padding-left: 1.5rem; }
        .feature-list li::before, .strategy-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: bold;
        }
        .callout {
            background: var(--secondary);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .callout h4 { margin-top: 0; color: var(--dark); }
        .interaction-forms {
            margin-top: 4rem;
            background: #f9f9ff;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            border: 1px dashed var(--primary);
        }
        .interaction-forms h2 { text-align: center; }
        .form-group { margin-bottom: 1.5rem; }
        .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: var(--dark); }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 2px rgba(26, 35, 126, 0.2); }
        textarea.form-control { min-height: 150px; resize: vertical; }
        .form-row { display: flex; gap: 1rem; }
        @media (max-width: 576px) { .form-row { flex-direction: column; } }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover { background: var(--dark); transform: translateY(-2px); }
        .btn-accent { background: var(--accent); }
        .btn-accent:hover { background: #e68900; }
        .star-rating { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 5px; }
        .star-rating input { display: none; }
        .star-rating label { font-size: 2rem; color: #ccc; cursor: pointer; transition: var(--transition); }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label { color: #ffc107; }
        .footer-links {
            background: var(--dark);
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            margin-bottom: 1rem;
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover { background: rgba(255,255,255,0.1); transform: translateX(10px); }
        .web-link a { color: white; display: block; }
        .web-link a:hover { color: var(--accent); }
        .site-footer {
            background: #0a0a3a;
            color: #aaa;
            padding: 3rem 0 1.5rem;
        }
        .footer-container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
        .footer-logo { font-size: 1.8rem; font-weight: 700; color: white; margin-bottom: 1rem; }
        .copyright { text-align: center; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid #333; font-size: 0.9rem; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 80px);
                background: var(--dark);
                padding: 2rem;
                transition: left 0.4s;
                box-shadow: 5px 0 15px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active { left: 0; }
            .main-nav ul { flex-direction: column; gap: 1.5rem; }
            .hero h1 { font-size: 2.5rem; }
            h2 { font-size: 1.8rem; }
            .content-area { gap: 2rem; }
            .main-content, .sidebar { padding: 1.5rem; }
        }