* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #ff4655; 
            --secondary: #0f1923; 
            --accent: #00c8ff; 
            --light: #f8f9fa;
            --dark: #1a1a1a;
            --gray: #6c757d;
            --success: #28a745;
            --warning: #ffc107;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f0f2f5;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), #d92b39);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            box-shadow: var(--shadow);
        }
        .btn:hover {
            background: linear-gradient(135deg, #d92b39, var(--primary));
            transform: translateY(-3px);
            color: white;
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            margin-bottom: 30px;
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }
        header {
            background: var(--secondary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0,0,0,0.3);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(255, 70, 85, 0.7);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .desktop-nav a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            background: var(--dark);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            border-top: 2px solid var(--primary);
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.05);
            padding: 15px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #ccc;
        }
        .breadcrumb a:hover {
            color: white;
        }
        .breadcrumb i {
            margin: 0 10px;
            font-size: 0.8rem;
        }
        .hero {
            background: linear-gradient(rgba(15, 25, 35, 0.9), rgba(15, 25, 35, 0.9)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            text-align: center;
            border-bottom: 5px solid var(--primary);
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            color: #ddd;
        }
        .highlight-box {
            background: rgba(255, 70, 85, 0.15);
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 40px 0;
            border-radius: 0 10px 10px 0;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .code-item {
            background: linear-gradient(145deg, #ffffff, #e6e6e6);
            border: 2px dashed var(--primary);
            padding: 25px;
            text-align: center;
            border-radius: 10px;
            font-family: monospace;
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--secondary);
            cursor: pointer;
            transition: var(--transition);
        }
        .code-item:hover {
            background: linear-gradient(145deg, #fff0f2, #ffd6da);
            border-color: var(--accent);
            transform: scale(1.03);
        }
        .code-item.copied {
            background: #d4edda;
            border-color: var(--success);
            color: var(--success);
        }
        .search-box {
            background: white;
            padding: 25px;
            border-radius: 12px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #ddd;
            border-radius: 8px 0 0 8px;
            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 30px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary);
        }
        .comment-section, .rating-section {
            margin-top: 60px;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 800px;
            margin: 30px auto;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--secondary);
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 10px 0;
        }
        .stars .star:hover,
        .stars .star.active {
            color: var(--warning);
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 50px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        article h2, article h3 {
            color: var(--secondary);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
        }
        article h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--accent);
            padding-left: 15px;
        }
        article h3 {
            font-size: 1.8rem;
            color: var(--primary);
        }
        article p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        article ul, article ol {
            margin-left: 30px;
            margin-bottom: 1.5rem;
        }
        article li {
            margin-bottom: 10px;
        }
        .emphasis {
            background: #fff9e6;
            border-left: 4px solid var(--warning);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
            font-weight: 600;
        }
        .tip {
            background: #e8f7ff;
            border-left: 4px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip::before {
            content: "💡 Pro Tip: ";
            font-weight: bold;
            color: var(--secondary);
        }
        .internal-links {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            border: 1px solid #dee2e6;
        }
        .internal-links h4 {
            margin-bottom: 15px;
            color: var(--secondary);
        }
        .internal-links a {
            display: inline-block;
            margin: 5px 15px 5px 0;
            padding: 8px 16px;
            background: white;
            border-radius: 6px;
            border: 1px solid #ced4da;
            color: var(--secondary);
            font-weight: 500;
        }
        .internal-links a:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        .article-image {
            margin: 40px auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 900px;
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 15px;
            background: #f8f9fa;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .web-links {
            background: var(--secondary);
            padding: 50px 0;
        }
        .web-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 25px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 70, 85, 0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            color: white;
            font-weight: 500;
            display: block;
            line-height: 1.6;
        }
        .web-link a:hover {
            color: var(--accent);
        }
        footer {
            background: var(--dark);
            color: #aaa;
            text-align: center;
            padding: 40px 20px;
            line-height: 1.8;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
        }
        .copyright {
            font-size: 0.9rem;
            color: #888;
            border-top: 1px solid #444;
            padding-top: 25px;
            max-width: 800px;
            margin: 0 auto;
        }
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.8rem; }
            .section-title { font-size: 2.2rem; }
            article { padding: 35px; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .hero h1 { font-size: 2.3rem; }
            .hero p { font-size: 1.1rem; }
            .section-title { font-size: 2rem; }
            .code-list { grid-template-columns: 1fr; }
            .search-form { flex-direction: column; }
            .search-form input { border-radius: 8px; margin-bottom: 10px; }
            .search-form button { border-radius: 8px; padding: 15px; }
            article { padding: 25px; }
            .web-links .container { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .hero { padding: 70px 0; }
            .hero h1 { font-size: 2rem; }
            .section { padding: 40px 0; }
            .card { padding: 25px; }
            .web-links .container { grid-template-columns: 1fr; }
            .footer-links { flex-direction: column; gap: 15px; }
        }