* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: #764ba2;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #ff6b6b;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 25px;
        }
        .nav-desktop a:hover {
            color: #764ba2;
            background: rgba(118, 75, 162, 0.1);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #333;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: white;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 1rem 2rem;
            text-decoration: none;
            color: #333;
            border-bottom: 1px solid #eee;
            transition: background 0.3s ease;
        }
        .nav-mobile a:hover {
            background: #f8f9fa;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.9);
            padding: 1rem 0;
            margin-top: 80px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #764ba2;
            text-decoration: none;
        }
        .breadcrumb span {
            color: #666;
        }
        main {
            background: white;
            margin: 2rem auto;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .hero p {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .content-section {
            padding: 3rem 2rem;
        }
        .content-section h2 {
            color: #764ba2;
            margin-bottom: 1.5rem;
            font-size: 2rem;
            border-left: 5px solid #ff6b6b;
            padding-left: 1rem;
        }
        .content-section h3 {
            color: #667eea;
            margin: 2rem 0 1rem 0;
            font-size: 1.5rem;
        }
        .content-section p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .content-section ul, .content-section ol {
            margin: 1rem 0 1rem 2rem;
        }
        .content-section li {
            margin-bottom: 0.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ff6b6b30 0%, #667eea30 100%);
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
            border-left: 4px solid #ff6b6b;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .code-item {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 15px;
            border: 2px dashed #764ba2;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .code-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(118, 75, 162, 0.2);
        }
        .code-value {
            font-family: monospace;
            font-size: 1.3rem;
            font-weight: bold;
            color: #764ba2;
            background: white;
            padding: 0.5rem 1rem;
            border-radius: 10px;
            margin: 1rem 0;
            display: inline-block;
            border: 2px solid #764ba2;
        }
        .search-section {
            background: #f8f9fa;
            padding: 3rem 2rem;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #764ba2;
            border-radius: 25px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: #764ba2;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .search-btn:hover {
            background: #667eea;
        }
        .interactive-section {
            padding: 3rem 2rem;
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            color: white;
        }
        .rating-system, .comment-system {
            background: rgba(255, 255, 255, 0.1);
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
            backdrop-filter: blur(10px);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ffd700;
            cursor: pointer;
            transition: transform 0.2s ease;
        }
        .star:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: none;
            border-radius: 10px;
            margin: 1rem 0;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
        }
        .submit-btn {
            background: #764ba2;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .submit-btn:hover {
            background: #667eea;
        }
        .web-links {
            background: #2c3e50;
            padding: 3rem 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
        }
        .web-link a {
            color: white;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .web-link a:hover {
            color: #ff6b6b;
        }
        footer {
            background: #1a1a1a;
            color: white;
            text-align: center;
            padding: 2rem;
        }
        .footer-content {
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-section {
                padding: 2rem 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .code-list {
                grid-template-columns: 1fr;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .hero {
                padding: 2rem 1rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .content-section h2 {
                font-size: 1.5rem;
            }
            .content-section h3 {
                font-size: 1.3rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .emoji { font-size: 1.2em; }