:root {
            --primary: #1a1f2e;
            --secondary: #0f141f;
            --accent: #00a8ff;
            --accent-dark: #0088cc;
            --text: #e0e0e0;
            --text-muted: #a0a0a0;
            --card-bg: #252a38;
            --border: #3a4152;
            --success: #2ecc71;
            --warning: #f39c12;
            --danger: #e74c3c;
            --radius: 8px;
            --shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--primary);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--secondary);
            padding: 1.2rem 0;
            border-bottom: 2px solid var(--accent);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #00a8ff, #9c88ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .breadcrumb {
            background-color: var(--card-bg);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span {
            color: var(--text);
            margin: 0 8px;
        }
        .nav-desktop {
            display: flex;
            gap: 1.8rem;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--accent);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--secondary);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem 0;
            border-bottom: 1px solid var(--border);
            font-size: 1.1rem;
        }
        .search-section {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            padding: 2.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            background-color: var(--card-bg);
            color: var(--text);
            font-size: 1rem;
            border: 1px solid var(--border);
            border-right: none;
        }
        .search-btn {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--accent-dark);
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            color: white;
            line-height: 1.2;
            border-left: 5px solid var(--accent);
            padding-left: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            margin: 3rem 0 1.5rem;
            color: var(--accent);
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--border);
        }
        h3 {
            font-size: 1.7rem;
            margin: 2.5rem 0 1rem;
            color: #9c88ff;
        }
        h4 {
            font-size: 1.3rem;
            margin: 2rem 0 0.8rem;
            color: var(--text-muted);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #b0b0b0;
            margin-bottom: 2.5rem;
            padding: 1.5rem;
            background-color: rgba(0, 168, 255, 0.05);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .highlight {
            background-color: rgba(0, 168, 255, 0.1);
            padding: 1.8rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            border-left: 4px solid var(--accent);
        }
        .highlight strong {
            color: var(--accent);
        }
        .content-img {
            margin: 2.5rem auto;
            max-width: 900px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-muted);
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .keyword-link {
            background-color: rgba(156, 136, 255, 0.15);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .keyword-link:hover {
            background-color: rgba(156, 136, 255, 0.3);
            text-decoration: none;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 0.5rem;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .card {
            background-color: var(--secondary);
            border-radius: var(--radius);
            padding: 1.8rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .card:hover {
            transform: translateY(-8px);
            border-color: var(--accent);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.5);
        }
        .card-icon {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1.2rem;
        }
        .card-title {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: white;
        }
        .interactive-section {
            background-color: var(--secondary);
            border-radius: var(--radius);
            padding: 2.5rem;
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: var(--text-muted);
            cursor: pointer;
        }
        .star-rating .star {
            transition: var(--transition);
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--warning);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .form-input, .form-textarea {
            padding: 1rem;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--card-bg);
            color: var(--text);
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-submit {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .form-submit:hover {
            background-color: var(--accent-dark);
        }
        footer {
            background-color: var(--secondary);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 2px solid var(--border);
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .footer-heading {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: white;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem 1rem;
            background-color: var(--card-bg);
            margin-bottom: 0.8rem;
            border-radius: var(--radius);
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        friend-link:hover {
            border-left-color: var(--accent);
            background-color: rgba(0, 168, 255, 0.05);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.5rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .header-container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .lead { font-size: 1.1rem; }
            .search-section { padding: 1.8rem; }
            .cards-grid { grid-template-columns: 1fr; }
            .footer-container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.8rem; padding-left: 1rem; }
            article { padding: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: var(--radius); border-right: 1px solid var(--border); margin-bottom: 0.8rem; }
            .search-btn { border-radius: var(--radius); padding: 1rem; }
        }