* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #6ee7ff;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #ffcc00;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(90deg, #00c6ff, #0072ff);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,114,255,0.3);
        }
        .btn:hover {
            background: linear-gradient(90deg, #0072ff, #00c6ff);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,114,255,0.5);
        }
        .site-header {
            background: rgba(15, 12, 41, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid #00c6ff;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 900;
            background: linear-gradient(90deg, #00c6ff, #ff00cc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 10px rgba(0,198,255,0.3);
        }
        .main-nav {
            display: flex;
            gap: 30px;
        }
        .main-nav a {
            color: #e0e0ff;
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffcc00;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #00c6ff;
            cursor: pointer;
            background: none;
            border: none;
        }
        .breadcrumb {
            background: rgba(36, 36, 62, 0.8);
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #aaaacc;
        }
        .breadcrumb a {
            color: #6ee7ff;
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: #7777aa;
        }
        .main-content {
            background: rgba(255, 255, 255, 0.97);
            margin: 30px auto;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0,0,0,0.4);
            animation: fadeIn 0.8s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-header {
            padding: 40px 40px 20px;
            text-align: center;
            border-bottom: 3px dashed #0072ff;
        }
        .article-title {
            font-size: 2.8rem;
            color: #0f0c29;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .article-body {
            padding: 40px;
        }
        .intro-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            padding: 25px;
            border-left: 6px solid #0072ff;
            border-radius: 10px;
            margin-bottom: 40px;
            font-size: 1.1rem;
        }
        section {
            margin-bottom: 50px;
        }
        h2 {
            font-size: 2.2rem;
            color: #0f0c29;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #00c6ff;
        }
        h3 {
            font-size: 1.7rem;
            color: #302b63;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: #444;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .feature-box {
            background: #f8f9ff;
            border-radius: 15px;
            padding: 25px;
            margin: 30px 0;
            border: 2px solid #ccdcff;
        }
        .quote {
            font-size: 1.3rem;
            font-style: italic;
            color: #0072ff;
            border-left: 5px solid #ffcc00;
            padding-left: 25px;
            margin: 30px 0;
        }
        .level-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .level-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .level-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
        }
        .level-card h4 {
            padding: 20px 20px 10px;
            color: #0f0c29;
        }
        .level-card p {
            padding: 0 20px 20px;
            color: #555;
        }
        .form-section {
            background: #f0f7ff;
            padding: 30px;
            border-radius: 15px;
            margin: 40px 0;
        }
        .form-title {
            color: #0f0c29;
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
        }
        input, textarea, select {
            width: 100%;
            padding: 14px;
            border: 2px solid #ccdcff;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #0072ff;
            box-shadow: 0 0 0 3px rgba(0,114,255,0.2);
        }
        .rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ffcc00;
        }
        .footer-links {
            background: rgba(15, 12, 41, 0.9);
            padding: 40px 20px;
        }
        .web-link {
            display: inline-block;
            margin: 10px 15px;
            padding: 10px 20px;
            background: rgba(255,255,255,0.1);
            border-radius: 8px;
            transition: background 0.3s ease;
        }
        .web-link:hover {
            background: rgba(0,198,255,0.2);
        }
        .web-link a {
            color: #e0e0ff;
        }
        .site-footer {
            background: #0a081e;
            color: #aaaacc;
            text-align: center;
            padding: 30px 20px;
            border-top: 1px solid #302b63;
        }
        .footer-links-container {
            text-align: center;
        }
        @media (max-width: 992px) {
            .article-title { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            .level-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: rgba(15, 12, 41, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .header-container { padding: 15px; }
            .article-body, .article-header { padding: 30px 20px; }
            .article-title { font-size: 1.9rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.5rem; }
            p { font-size: 1rem; }
            .form-section { padding: 20px; }
            .web-link {
                display: block;
                margin: 10px auto;
                max-width: 300px;
            }
        }