* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-purple: #7b3aed;
            --primary-pink: #ff4d8d;
            --dark-bg: #1a1a2e;
            --content-bg: #0f3460;
            --card-bg: #16213e;
            --text-light: #e6e6ff;
            --text-grey: #b3b3cc;
            --accent-teal: #2dd4bf;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--dark-bg);
            color: var(--text-light);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--accent-teal);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-pink);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background-color: var(--card-bg);
            padding: var(--spacing-sm) 0;
            border-bottom: 3px solid var(--primary-purple);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            margin-right: 10px;
            color: var(--accent-teal);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem;
            border-radius: var(--border-radius);
        }
        .main-nav a:hover {
            background-color: var(--primary-purple);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            background-color: rgba(22, 33, 62, 0.7);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-md);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--text-grey);
        }
        main {
            flex: 1;
            padding: var(--spacing-md) 0;
            background-color: var(--content-bg);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: var(--card-bg);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        .article-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 2px dashed var(--primary-purple);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
            color: var(--primary-pink);
            line-height: 1.2;
        }
        .article-meta {
            color: var(--text-grey);
            font-style: italic;
            margin-bottom: var(--spacing-sm);
        }
        h2 {
            color: var(--accent-teal);
            margin: var(--spacing-lg) 0 var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--primary-purple);
        }
        h3 {
            color: var(--primary-pink);
            margin: var(--spacing-md) 0 var(--spacing-xs);
        }
        h4 {
            color: var(--text-light);
            margin: var(--spacing-sm) 0 var(--spacing-xs);
            font-style: italic;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(135deg, #2a2a4a, #1a1a2e);
            border-left: 5px solid var(--accent-teal);
            padding: var(--spacing-sm);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-img {
            margin: var(--spacing-lg) auto;
            max-width: 800px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        .feature-img figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-grey);
            margin-top: 0.5rem;
        }
        .interactive-module {
            background-color: rgba(26, 26, 46, 0.8);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin: var(--spacing-lg) 0;
            border: 1px solid var(--primary-purple);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary-pink);
            margin-bottom: var(--spacing-sm);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 0.3rem;
            font-weight: 600;
        }
        input, textarea, select {
            padding: 0.8rem;
            border-radius: 8px;
            border: 1px solid #444;
            background-color: #2a2a4a;
            color: var(--text-light);
            font-size: 1rem;
        }
        button, .btn {
            background: linear-gradient(90deg, var(--primary-purple), var(--primary-pink));
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            display: inline-block;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(123, 58, 237, 0.4);
            text-decoration: none;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .star-rating .star {
            color: #555;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: gold;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background-color: var(--card-bg);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
        }
        .widget-title {
            color: var(--accent-teal);
            margin-bottom: var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #444;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #444;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list a::before {
            content: "▶";
            color: var(--primary-pink);
            font-size: 0.8rem;
        }
        .update-info {
            font-size: 0.9rem;
            color: var(--text-grey);
            text-align: center;
            padding: var(--spacing-sm);
            background-color: rgba(22, 33, 62, 0.7);
            border-radius: var(--border-radius);
        }
        footer {
            background-color: var(--card-bg);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
            margin-top: var(--spacing-lg);
            border-top: 3px solid var(--primary-purple);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        friend-link {
            display: block;
            background-color: rgba(123, 58, 237, 0.1);
            padding: var(--spacing-sm);
            margin: 0.5rem 0;
            border-radius: var(--border-radius);
            border-left: 3px solid var(--primary-pink);
        }
        friend-link a {
            color: var(--text-light);
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid #444;
            color: var(--text-grey);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: var(--spacing-sm);
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #444;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            .content-wrapper {
                gap: var(--spacing-md);
            }
            article {
                padding: var(--spacing-md);
            }
        }