* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-weight: 800; color: #2c3e50; margin-bottom: 1rem; line-height: 1.2; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; border-bottom: 4px solid #3498db; padding-bottom: 0.5rem; }
        h2 { font-size: 2.2rem; color: #2980b9; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; color: #16a085; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #8e44ad; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #555; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.5rem; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main { flex: 1; }
        .site-header {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(45deg, #FFD700, #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo a:hover { opacity: 0.9; }
        .nav-desktop { display: flex; }
        .nav-desktop ul {
            display: flex;
            list-style: none;
        }
        .nav-desktop li { margin-left: 2rem; }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-desktop a:hover,
        .nav-desktop a:focus {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #1a2980;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: block; }
        .nav-mobile ul { list-style: none; }
        .nav-mobile li { margin-bottom: 1rem; }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            font-size: 1.2rem;
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
        }
        .nav-mobile a:hover { background-color: rgba(255,255,255,0.1); }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
            font-size: 0.95rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-module {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-module h2 { margin-top: 0; }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #3498db;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: linear-gradient(90deg, #3498db, #2980b9);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover { background: linear-gradient(90deg, #2980b9, #1c5a7a); }
        .content-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.12);
        }
        .hero-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            border: 5px solid #ecf0f1;
        }
        .internal-links {
            background: #f1f8ff;
            border-left: 5px solid #3498db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .internal-links ul { list-style-position: inside; color: #2c3e50; }
        .internal-links a {
            color: #2980b9;
            text-decoration: none;
            font-weight: 600;
        }
        .internal-links a:hover { text-decoration: underline; }
        .user-interaction {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-form, .rating-form {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #3498db;
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: linear-gradient(90deg, #27ae60, #219653); }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #f1c40f;
            margin: 1rem 0;
        }
        .star { cursor: pointer; transition: transform 0.2s; }
        .star:hover { transform: scale(1.2); }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-logo a {
            font-size: 2rem;
            font-weight: 900;
            color: #3498db;
            text-decoration: none;
        }
        .footer-section h3 {
            color: #ecf0f1;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3498db;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: #3498db; }
        friend-link {
            display: block;
            padding: 0.8rem;
            background: #34495e;
            border-radius: 5px;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #3498db;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            .header-inner { flex-wrap: wrap; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-desktop { display: none; }
            .header-inner { flex-wrap: nowrap; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .content-card { padding: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: 50px; margin-bottom: 1rem; }
            .search-btn { border-radius: 50px; padding: 0.9rem; }
            .user-interaction { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.8rem; }
            .my-logo a { font-size: 1.8rem; }
        }
        .text-center { text-align: center; }
        .last-updated {
            font-style: italic;
            color: #7f8c8d;
            margin: 1rem 0;
            padding: 0.5rem;
            background: #f8f9fa;
            border-radius: 4px;
        }
        .tag {
            display: inline-block;
            background: #e0f7fa;
            color: #006064;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }