:root {
            --primary: #6C5CE7;
            --secondary: #A29BFE;
            --accent: #00CEC9;
            --dark: #2D3436;
            --light: #F9F9F9;
            --gray: #636E72;
            --success: #00B894;
            --warning: #FDCB6E;
            --danger: #E17055;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 28px;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 32px;
            color: var(--primary);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--radius);
        }
        .desktop-nav a:hover {
            background: var(--primary);
            color: white;
        }
        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: white;
            padding: 20px;
            border-top: 2px solid var(--light);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 0;
            border-bottom: 1px solid #eee;
            font-weight: 600;
        }
        .breadcrumb {
            background: #f1f2f6;
            padding: 12px 0;
            font-size: 14px;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .search-box {
            background: white;
            padding: 40px 0;
            text-align: center;
            margin: 30px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .search-box h2 {
            margin-bottom: 20px;
            color: var(--dark);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid var(--secondary);
            border-radius: var(--radius);
            font-size: 16px;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        main {
            padding: 40px 0;
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 42px;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }
        h2 {
            font-size: 32px;
            margin: 40px 0 20px;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
        }
        h3 {
            font-size: 24px;
            margin: 30px 0 15px;
            color: var(--dark);
        }
        p {
            margin-bottom: 20px;
            font-size: 18px;
            color: var(--gray);
        }
        .highlight {
            background: linear-gradient(120deg, rgba(108, 92, 231, 0.1), rgba(0, 206, 201, 0.1));
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 30px 0;
        }
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .promo-card {
            background: white;
            border: 2px dashed var(--accent);
            border-radius: var(--radius);
            padding: 25px;
            text-align: center;
            transition: var(--transition);
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
        }
        .promo-card:hover {
            transform: translateY(-10px);
            border-style: solid;
            box-shadow: 0 12px 20px rgba(0,0,0,0.1);
        }
        .code {
            font-family: monospace;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            background: #f8f9fa;
            padding: 15px;
            border-radius: var(--radius);
            margin: 15px 0;
            letter-spacing: 2px;
        }
        .btn-copy {
            background: var(--success);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            margin-top: 10px;
            transition: var(--transition);
        }
        .btn-copy:hover {
            background: #00a085;
        }
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .stat-box {
            background: white;
            padding: 25px;
            border-radius: var(--radius);
            text-align: center;
            box-shadow: var(--shadow);
        }
        .stat-box i {
            font-size: 40px;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .feature-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .user-interaction {
            margin: 60px 0;
        }
        .rating-section, .comment-section {
            background: white;
            padding: 30px;
            border-radius: var(--radius);
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 20px 0;
            font-size: 28px;
            color: var(--warning);
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            margin: 15px 0;
            font-size: 16px;
            resize: vertical;
            min-height: 150px;
        }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: var(--accent);
            transform: translateY(-3px);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
            margin: 40px 0;
            padding: 30px;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .web-link {
            padding: 12px 20px;
            background: #f8f9fa;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: var(--primary);
        }
        .web-link:hover a {
            color: white;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--gray);
            width: 100%;
            font-size: 14px;
            color: #b2bec3;
        }
        @media (max-width: 992px) {
            h1 { font-size: 36px; }
            h2 { font-size: 28px; }
            .promo-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .search-form { flex-direction: column; }
            .search-btn { padding: 15px; }
            article { padding: 25px; }
            h1 { font-size: 30px; }
            h2 { font-size: 24px; }
            .stats { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            .promo-grid { grid-template-columns: 1fr; }
            .header-top { padding: 10px 0; }
            .logo a { font-size: 22px; }
        }