* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #e63946;
            --secondary-color: #1d3557;
            --accent-color: #f4a261;
            --light-color: #f1faee;
            --dark-color: #1a1a2e;
            --gray-color: #8d99ae;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --container-width: 1200px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            text-align: center;
            margin: 2rem 0;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin-top: 2.5rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        strong {
            color: var(--secondary-color);
            font-weight: 700;
        }
        em {
            color: var(--gray-color);
            font-style: italic;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        header {
            background-color: var(--dark-color);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
        }
        .logo span {
            color: var(--primary-color);
        }
        .logo:hover {
            text-decoration: none;
            transform: scale(1.02);
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--secondary-color);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: var(--gray-color);
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav li {
            margin-left: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav a:hover {
            text-decoration: none;
            color: var(--accent-color);
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .hero {
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--dark-color) 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
            margin-bottom: 3rem;
        }
        .hero h1 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 3.2rem;
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-color);
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .search-btn:hover {
            background-color: var(--secondary-color);
        }
        .content-section {
            background-color: white;
            padding: 2.5rem;
            margin-bottom: 3rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .feature-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 6px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-card {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--primary-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--secondary-color);
            font-weight: 600;
        }
        .quote {
            background-color: var(--light-color);
            border-left: 5px solid var(--accent-color);
            padding: 2rem;
            margin: 2.5rem 0;
            font-style: italic;
            font-size: 1.2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .quote-author {
            text-align: right;
            font-weight: 600;
            color: var(--secondary-color);
            margin-top: 1rem;
        }
        .user-interaction {
            background-color: #f8f9fa;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            border: 1px solid #e9ecef;
        }
        .rating-section, .comment-section {
            margin-bottom: 3rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffc107;
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--secondary-color);
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .content-link {
            color: var(--secondary-color);
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-color);
            padding-bottom: 2px;
        }
        .content-link:hover {
            color: var(--primary-color);
            text-decoration: none;
            border-bottom-style: solid;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            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-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: white;
        }
        .footer-logo span {
            color: var(--primary-color);
        }
        .footer-links h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            text-decoration: none;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #444;
        }
        friend-link h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .friend-links a {
            background-color: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            color: white;
            transition: var(--transition);
        }
        .friend-links a:hover {
            background-color: var(--primary-color);
            text-decoration: none;
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 1rem;
            }
            .content-section {
                padding: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 1;
            }
            .logo {
                order: 0;
                flex: 1;
            }
            nav {
                order: 2;
                flex-basis: 100%;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
            }
            nav li {
                margin: 0;
                margin-bottom: 0.8rem;
            }
            h1 {
                font-size: 2rem;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--border-radius);
                margin-bottom: 0.5rem;
            }
            .search-btn {
                border-radius: var(--border-radius);
                padding: 1rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .hero {
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9e6 0%, #ffeaa7 100%);
            border: 2px solid #fdcb6e;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            position: relative;
        }
        .highlight-box::before {
            content: "🌟";
            position: absolute;
            top: -15px;
            left: -15px;
            font-size: 1.8rem;
            background: white;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dashed var(--primary-color);
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background-color: var(--dark-color);
            color: white;
            text-align: center;
            border-radius: var(--border-radius);
            padding: 0.8rem;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
            font-weight: normal;
        }
        .tooltip-text::after {
            content: "";
            position: absolute;
            top: 100%;
            left: 50%;
            margin-left: -5px;
            border-width: 5px;
            border-style: solid;
            border-color: var(--dark-color) transparent transparent transparent;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary-color);
        }