* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2a2d7c;
            --secondary: #ff4d00;
            --accent: #00c3ff;
            --dark: #121212;
            --light: #f5f7ff;
            --gray: #6c757d;
            --success: #28a745;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        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), #4a4fd8);
            color: white;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(135deg, var(--secondary), #ff6a2d);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section-title {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .search-form {
            flex-grow: 1;
            max-width: 500px;
            margin: 0 30px;
            position: relative;
        }
        .search-form input {
            width: 100%;
            padding: 12px 20px 12px 45px;
            border: 2px solid #e0e0e0;
            border-radius: 30px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--accent);
        }
        .search-form button {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray);
            font-size: 1.2rem;
            cursor: pointer;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
        }
        .navbar {
            background-color: var(--dark);
        }
        .nav-list {
            display: flex;
            list-style: none;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            display: block;
            padding: 18px 22px;
            color: white;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .nav-list a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .nav-list a i {
            margin-right: 8px;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f8f9fa;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .article-content {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #ddd;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .meta-item i {
            margin-right: 5px;
            color: var(--accent);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 8px;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--secondary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 25px 0;
        }
        .code-item {
            background: linear-gradient(135deg, #f8f9ff, #eef1ff);
            border: 2px dashed var(--accent);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
        }
        .code-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .code-value {
            font-family: 'Courier New', monospace;
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--primary);
            margin: 10px 0;
            letter-spacing: 1px;
        }
        .reward {
            color: var(--success);
            font-weight: 600;
        }
        .featured-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        blockquote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin: 25px 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        .popular-list {
            list-style: none;
        }
        .popular-list li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dotted #eee;
        }
        .popular-list a {
            display: flex;
            align-items: center;
        }
        .popular-list i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .comment-section, .rating-section {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            margin-top: 40px;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            outline: none;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin: 10px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #ffc107;
        }
        .footer-links {
            background-color: var(--dark);
            padding: 40px 0;
            margin-top: 60px;
        }
        .web-link {
            display: inline-block;
            margin: 8px 15px 8px 0;
            padding: 10px 20px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 30px;
            color: #ccc;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .footer-bottom {
            background-color: #0a0a0a;
            color: #aaa;
            padding: 25px 0;
            text-align: center;
            font-size: 0.9rem;
        }
        .footer-bottom a {
            color: var(--accent);
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 100%;
                margin: 15px 0 0;
            }
            .mobile-toggle {
                display: block;
            }
            .navbar {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--dark);
                display: none;
                box-shadow: var(--shadow);
            }
            .navbar.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
            }
            h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }