* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
            background-attachment: fixed;
            max-width: 100%;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: 'Arial Black', Gadget, sans-serif; color: #00eeff; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); text-shadow: 0 0 15px rgba(0, 238, 255, 0.5); }
        h2 { font-size: clamp(2rem, 4vw, 2.8rem); border-left: 5px solid #ff00aa; padding-left: 15px; margin-top: 2.5rem; }
        h3 { font-size: clamp(1.5rem, 3vw, 2rem); color: #ffaa00; margin-top: 2rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        a { color: #00eeff; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #ff00aa; text-shadow: 0 0 8px rgba(255, 0, 170, 0.7); }
        strong { color: #ffaa00; font-weight: bold; }
        em { color: #aaff00; font-style: italic; }
        .container {
            width: min(1200px, 95%);
            margin: 0 auto;
            padding: 0 20px;
        }
        section { padding: 3rem 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
        header {
            background: rgba(10, 10, 20, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(0,0,0,0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #00eeff, #ff00aa);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { font-size: 2.5rem; color: #00eeff; }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            font-weight: bold;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 5px;
        }
        nav a:hover, nav a.active {
            background: rgba(0, 238, 255, 0.1);
            box-shadow: 0 0 10px rgba(0, 238, 255, 0.3);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #00eeff;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a { color: #aaa; }
        .breadcrumb a:hover { color: #00eeff; }
        .hero {
            text-align: center;
            padding: 4rem 0;
            background: radial-gradient(circle at center, rgba(0, 100, 200, 0.2) 0%, transparent 70%);
        }
        .hero h1 { margin-bottom: 1rem; }
        .hero p { font-size: 1.3rem; color: #ccccff; max-width: 800px; margin: 0 auto 2rem; }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            background: rgba(255,255,255,0.05);
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .search-box h3 { text-align: center; }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid #00eeff;
            border-radius: 8px 0 0 8px;
            background: rgba(0,0,0,0.7);
            color: white;
            font-size: 1rem;
        }
        .search-form button {
            padding: 15px 25px;
            background: linear-gradient(90deg, #00eeff, #0088ff);
            border: none;
            border-radius: 0 8px 8px 0;
            color: white;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .search-form button:hover { background: linear-gradient(90deg, #ff00aa, #ff5500); }
        .content-card {
            background: rgba(30, 30, 50, 0.7);
            border-radius: 15px;
            padding: 2rem;
            margin: 2rem 0;
            border: 1px solid rgba(0, 238, 255, 0.2);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 238, 255, 0.2);
        }
        .mode-wheel-img {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #00eeff;
            box-shadow: 0 0 30px rgba(0, 238, 255, 0.4);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background: rgba(0,0,0,0.5);
            border-radius: 10px;
            overflow: hidden;
        }
        .data-table th, .data-table td {
            padding: 1rem;
            border: 1px solid rgba(255,255,255,0.1);
            text-align: left;
        }
        .data-table th {
            background: rgba(0, 100, 255, 0.3);
            color: #00eeff;
            font-weight: bold;
        }
        .data-table tr:nth-child(even) { background: rgba(255,255,255,0.03); }
        .data-table tr:hover { background: rgba(0, 238, 255, 0.1); }
        ul.feature-list, ol.tips-list {
            padding-left: 2rem;
            margin: 1.5rem 0;
        }
        ul.feature-list li, ol.tips-list li {
            margin-bottom: 0.8rem;
            padding-left: 10px;
        }
        ul.feature-list li::marker { color: #00eeff; content: '▶ '; }
        ol.tips-list li::marker { color: #ffaa00; font-weight: bold; }
        .interactive-wheel {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .mode-icon {
            text-align: center;
            padding: 2rem;
            background: rgba(0,0,0,0.3);
            border-radius: 15px;
            border: 2px solid transparent;
            transition: all 0.4s;
            cursor: pointer;
        }
        .mode-icon:hover {
            border-color: #ff00aa;
            transform: scale(1.05);
            box-shadow: 0 0 25px rgba(255, 0, 170, 0.5);
        }
        .mode-icon i {
            font-size: 4rem;
            margin-bottom: 1rem;
            display: block;
        }
        .cube { color: #00eeff; }
        .ship { color: #ffaa00; }
        .ball { color: #aaff00; }
        .ufo { color: #ff00aa; }
        .wave { color: #aa00ff; }
        .robot { color: #00ffaa; }
        .user-feedback {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-box, .rating-box {
            background: rgba(20, 20, 40, 0.8);
            padding: 2rem;
            border-radius: 15px;
            border: 1px solid rgba(255,255,255,0.1);
        }
        .comment-box h3, .rating-box h3 { margin-bottom: 1.5rem; }
        textarea, select, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            background: rgba(0,0,0,0.6);
            border: 1px solid #00eeff;
            border-radius: 8px;
            color: white;
            font-size: 1rem;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
            justify-content: center;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active { color: #ffaa00; }
        .submit-btn {
            display: block;
            width: 100%;
            padding: 15px;
            background: linear-gradient(90deg, #ff00aa, #ff5500);
            border: none;
            border-radius: 8px;
            color: white;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover { background: linear-gradient(90deg, #00eeff, #0088ff); }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
            padding: 3rem 0;
            border-top: 2px solid rgba(0, 238, 255, 0.3);
            border-bottom: 2px solid rgba(0, 238, 255, 0.3);
        }
        .web-link {
            background: rgba(255,255,255,0.03);
            padding: 1.2rem;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: rgba(0, 238, 255, 0.1);
            transform: translateX(5px);
        }
        .web-link a { display: block; font-weight: bold; }
        footer {
            text-align: center;
            padding: 2rem 0;
            color: #888;
            font-size: 0.9rem;
            background: rgba(5, 5, 15, 0.9);
        }
        .social-icons {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1.5rem 0;
            font-size: 1.5rem;
        }
        .social-icons a { color: #888; }
        .social-icons a:hover { color: #00eeff; }
        @media (max-width: 992px) {
            nav ul { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(10, 10, 25, 0.98);
                flex-direction: column;
                padding: 2rem;
                text-align: center;
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            nav ul.active { display: flex; }
            .header-container { flex-wrap: wrap; }
            .interactive-wheel { grid-template-columns: repeat(2, 1fr); }
            .user-feedback { grid-template-columns: 1fr; }
        }
        @media (max-width: 576px) {
            .interactive-wheel { grid-template-columns: 1fr; }
            .footer-links { grid-template-columns: 1fr; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }