* { 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: #e0e0e0;
            background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #6ab0ff; text-decoration: none; transition: color 0.3s ease, text-shadow 0.3s ease; }
        a:hover { color: #ffffff; text-shadow: 0 0 8px rgba(106, 176, 255, 0.7); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin: 1em 0; }
        li { margin-bottom: 0.5em; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .highlight { background: linear-gradient(90deg, rgba(106, 176, 255, 0.15) 0%, rgba(106, 176, 255, 0.05) 100%); padding: 1.5rem; border-left: 4px solid #6ab0ff; border-radius: 0 8px 8px 0; }
        .site-header {
            background: rgba(10, 10, 26, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(106, 176, 255, 0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 1.8rem;
            background: linear-gradient(90deg, #6ab0ff, #a3d5ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            font-weight: 900;
            letter-spacing: -0.5px;
        }
        .my-logo:hover { text-shadow: 0 0 15px rgba(106, 176, 255, 0.5); }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
            margin: 0 2rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #444;
            background: #1a1a2e;
            color: #fff;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-btn {
            background: #6ab0ff;
            color: #0a0a1a;
            border: none;
            padding: 0.8rem 1.2rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s ease;
        }
        .search-btn:hover { background: #8bc4ff; }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: #ccc;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #6ab0ff;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }
        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background: #6ab0ff;
            border-radius: 2px;
            transition: 0.3s;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #0a0a1a;
            border-top: 1px solid #333;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            z-index: 999;
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            color: #ccc;
            padding: 1rem;
            border-bottom: 1px solid #222;
        }
        .mobile-nav a:last-child { border-bottom: none; }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(26, 26, 46, 0.7);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a { color: #aaa; }
        .breadcrumb a:hover { color: #6ab0ff; }
        .breadcrumb span { color: #6ab0ff; }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .article-grid { grid-template-columns: 1fr; }
        }
        .article-content {
            background: rgba(20, 20, 35, 0.8);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        h1 {
            font-size: 2.8rem;
            color: #ffffff;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        }
        h2 {
            font-size: 2rem;
            color: #a3d5ff;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(106, 176, 255, 0.3);
        }
        h3 {
            font-size: 1.6rem;
            color: #8bc4ff;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #b3d9ff;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: #ccccff;
            font-weight: 300;
        }
        .emoji { font-size: 1.2em; margin-right: 0.3em; }
        strong { color: #ffffff; font-weight: 700; }
        .sidebar {
            background: rgba(20, 20, 35, 0.8);
            border-radius: 12px;
            padding: 2rem;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 { margin-top: 0; }
        .sidebar ul { list-style: none; padding-left: 0; }
        .sidebar li { margin-bottom: 0.8rem; }
        .sidebar a { display: block; padding: 0.5rem; border-radius: 4px; }
        .sidebar a:hover { background: rgba(106, 176, 255, 0.1); }
        .article-image {
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid #444;
            max-width: 800px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.7);
        }
        .article-image img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-image:hover img { transform: scale(1.03); }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            padding: 0.8rem;
            background: rgba(0, 0, 0, 0.3);
        }
        .interactive-module {
            background: rgba(30, 30, 50, 0.6);
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            border: 1px solid rgba(106, 176, 255, 0.2);
        }
        .module-title {
            color: #6ab0ff;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-stars .star {
            color: #555;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active { color: #ffcc00; }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            color: #ccc;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            background: #1a1a2e;
            border: 1px solid #444;
            border-radius: 6px;
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6ab0ff;
            box-shadow: 0 0 0 2px rgba(106, 176, 255, 0.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, #6ab0ff, #4a90e2);
            color: #0a0a1a;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #8bc4ff, #6ab0ff);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(106, 176, 255, 0.4);
        }
        .site-footer {
            background: #0a0a1a;
            border-top: 1px solid rgba(106, 176, 255, 0.2);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-links {
            display: block;
            background: rgba(26, 26, 46, 0.7);
            padding: 1.5rem;
            border-radius: 8px;
        }
        friend-links h4 { color: #a3d5ff; margin-bottom: 1rem; }
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .friend-link-list a {
            background: rgba(106, 176, 255, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            border: 1px solid rgba(106, 176, 255, 0.3);
        }
        .friend-link-list a:hover {
            background: rgba(106, 176, 255, 0.2);
            transform: translateY(-2px);
        }
        .copyright {
            text-align: center;
            color: #777;
            font-size: 0.9rem;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #888;
            margin-top: 2rem;
            font-style: italic;
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .search-form { order: 3; width: 100%; margin: 1rem 0 0 0; max-width: 100%; }
            .nav-desktop { display: none; }
            .hamburger { display: flex; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .article-content { padding: 1.5rem; }
        }