* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #FF9800;
            --secondary: #4CAF50;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav.desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav.desktop-nav a:hover {
            color: var(--primary);
        }
        nav.desktop-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--primary);
            left: 0;
            bottom: 0;
            transition: width 0.3s;
        }
        nav.desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            padding: 1rem;
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-radius: 5px;
            font-weight: 600;
        }
        .mobile-nav a:hover {
            background: rgba(255, 152, 0, 0.1);
            color: var(--primary);
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        .search-box {
            margin: 2rem auto;
            max-width: 600px;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-box input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #e68900;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        h1 {
            color: var(--dark);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary);
        }
        h3 {
            color: var(--dark);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--gray);
            font-weight: 500;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255, 152, 0, 0.15) 0%, rgba(76, 175, 80, 0.15) 100%);
            border-left: 5px solid var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .code-card {
            background: #f8f9fa;
            border: 2px dashed var(--secondary);
            border-radius: 10px;
            padding: 1.5rem;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .code-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .code-card h4 {
            color: var(--dark);
            margin-bottom: 0.5rem;
        }
        .code {
            font-family: monospace;
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary);
            background: white;
            padding: 0.5rem;
            border-radius: 5px;
            margin: 1rem 0;
            display: inline-block;
            border: 2px solid #ddd;
        }
        .reward {
            color: var(--secondary);
            font-weight: 600;
        }
        .expiry {
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        .note {
            background: #fff3cd;
            border-left: 5px solid #ffc107;
            padding: 1rem;
            border-radius: 0 5px 5px 0;
            margin: 1.5rem 0;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            display: block;
            margin: 2rem auto;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        blockquote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--primary);
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .rating-section, .comments-section {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .rating-title, .comments-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark);
            margin-bottom: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star.active,
        .star:hover {
            color: #ffc107;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .rating-form input,
        .comment-form input,
        .comment-form textarea {
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .rating-form input:focus,
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            align-self: flex-start;
        }
        .btn:hover {
            background: #e68900;
        }
        .comments-list {
            margin-top: 2rem;
        }
        .comment {
            border-bottom: 1px solid #eee;
            padding: 1.5rem 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: 600;
            color: var(--dark);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--secondary);
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a:hover {
            color: var(--primary);
        }
        .social-icons {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            font-size: 1.2rem;
        }
        .social-icons a:hover {
            background: var(--primary);
            transform: scale(1.1);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav.desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .code-list {
                grid-template-columns: 1fr;
            }
            .footer-content {
                flex-direction: column;
            }
            article {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            .search-box {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-box input,
            .search-box button {
                width: 100%;
                border-radius: 0;
            }
        }