* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1020;
            color: #e0e0ff;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #6ea6ff;
            text-decoration: none;
            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;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1b3a 0%, #2a2b5a 100%);
            padding: 1.2rem 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, #ffcc00, #ff6b6b);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .logo a:hover {
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #b0b0ff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(110, 166, 255, 0.15);
            color: #6ea6ff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: #ffcc00;
            border-radius: 2px;
            transition: 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }
        .breadcrumb {
            background-color: rgba(30, 31, 60, 0.8);
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #6ea6ff;
        }
        .breadcrumb a {
            color: #b0b0ff;
        }
        .breadcrumb a:hover {
            color: #ffcc00;
        }
        main {
            padding: 2rem 0 4rem;
        }
        article {
            background: linear-gradient(145deg, #1e1f3c, #252747);
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            color: #ffcc00;
            text-shadow: 0 2px 10px rgba(255, 204, 0, 0.3);
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            margin: 2.5rem 0 1.2rem;
            color: #6ea6ff;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3a3b6a;
        }
        h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: #b0b0ff;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #ccccff;
            font-weight: 500;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(255, 204, 0, 0.15);
            border-left: 4px solid #ffcc00;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: #ffcc00;
            font-weight: 700;
        }
        .code-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .code-card {
            background: #2a2b5a;
            border-radius: 12px;
            padding: 1.5rem;
            border: 2px solid #3a3b8a;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .code-card:hover {
            border-color: #ffcc00;
            transform: translateY(-8px);
            box-shadow: 0 10px 20px rgba(255, 204, 0, 0.2);
        }
        .code-value {
            font-family: 'Courier New', monospace;
            background: #0f1020;
            color: #00ffaa;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            font-size: 1.5rem;
            font-weight: bold;
            letter-spacing: 1px;
            margin: 1rem 0;
            cursor: pointer;
            user-select: all;
        }
        .reward {
            color: #ffcc00;
            font-weight: bold;
            margin-top: 0.5rem;
        }
        .feature-img {
            margin: 3rem auto;
            max-width: 900px;
            position: relative;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
        }
        .feature-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .feature-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #aaaacc;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .interactive-module {
            background: #252747;
            border-radius: 15px;
            padding: 2.5rem;
            margin: 3rem 0;
            border: 1px solid #3a3b8a;
        }
        .module-title {
            color: #ffcc00;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            color: #b0b0ff;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            background-color: #1a1b3a;
            border: 2px solid #3a3b8a;
            border-radius: 8px;
            color: #e0e0ff;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6ea6ff;
        }
        button, .btn {
            background: linear-gradient(to right, #ff6b6b, #ffcc00);
            color: #0f1020;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover, .btn:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(255, 204, 0, 0.4);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .longtail-links {
            background-color: #1a1b3a;
            padding: 3rem 0;
            margin-top: 2rem;
        }
        .web-link {
            display: inline-block;
            background: #252747;
            margin: 0.7rem;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            border: 1px solid #3a3b8a;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background-color: #2a2b5a;
            border-color: #ffcc00;
            transform: translateY(-3px);
        }
        .links-container {
            text-align: center;
        }
        .site-footer {
            background-color: #0f1020;
            padding: 3rem 0 2rem;
            border-top: 1px solid #2a2b5a;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .copyright {
            color: #7777aa;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #2a2b5a;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .container { padding: 0 15px; }
            article { padding: 2rem; }
            .code-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: #1a1b3a;
                padding: 2rem;
                transition: left 0.5s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.3);
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: center;
                gap: 1.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .logo a { font-size: 1.8rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .interactive-module { padding: 1.8rem; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.9rem; }
            .lead { font-size: 1.1rem; }
            .code-grid { grid-template-columns: 1fr; }
            .code-value { font-size: 1.3rem; }
            article { padding: 1.5rem; }
        }