:root {
            --primary-color: #00ccff;
            --secondary-color: #ff66c4;
            --dark-bg: #0f1525;
            --content-bg: #1a2238;
            --text-color: #e0e7ff;
            --text-muted: #a0abc0;
            --accent-gold: #ffd700;
            --border-radius: 12px;
            --spacing-unit: 1.5rem;
            --transition-speed: 0.3s;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-color);
            background-color: var(--dark-bg);
            background-image: radial-gradient(circle at 20% 30%, rgba(0, 204, 255, 0.05) 0%, transparent 20%),
                              radial-gradient(circle at 80% 70%, rgba(255, 102, 196, 0.05) 0%, transparent 20%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .site-header {
            padding: 1.5rem 0;
            border-bottom: 2px solid rgba(0, 204, 255, 0.3);
            margin-bottom: 2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 10px rgba(0, 204, 255, 0.3);
            letter-spacing: -0.5px;
        }
        .my-logo a {
            background: none;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .search-form {
            display: flex;
            flex-grow: 1;
            max-width: 500px;
            margin: 0 2rem;
        }
        .search-form input[type="search"] {
            flex-grow: 1;
            padding: 0.8rem 1.2rem;
            border: 2px solid rgba(0, 204, 255, 0.5);
            border-radius: 50px 0 0 50px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-color);
            font-size: 1rem;
        }
        .search-form button {
            padding: 0.8rem 1.5rem;
            background: linear-gradient(90deg, var(--primary-color), #0099cc);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background var(--transition-speed);
        }
        .search-form button:hover {
            background: linear-gradient(90deg, #0099cc, var(--primary-color));
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--primary-color);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            display: block;
        }
        .main-nav a:hover {
            background: rgba(0, 204, 255, 0.15);
            text-decoration: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            margin-bottom: 2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-unit);
        }
        article {
            background: var(--content-bg);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            margin-bottom: 2rem;
        }
        aside {
            background: var(--content-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            align-self: start;
            position: sticky;
            top: 20px;
        }
        h1, h2, h3, h4 {
            color: var(--text-color);
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-left: 5px solid var(--primary-color);
            padding-left: 1.5rem;
            margin-top: 0;
            background: linear-gradient(90deg, #fff, var(--primary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed rgba(255, 102, 196, 0.4);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--text-color);
            font-weight: 300;
            background: rgba(0, 204, 255, 0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--primary-color);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(0, 204, 255, 0.15), rgba(255, 102, 196, 0.15));
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border: 1px solid rgba(0, 204, 255, 0.3);
            margin: 2rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .content-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
            border: 2px solid rgba(0, 204, 255, 0.2);
        }
        figcaption {
            text-align: center;
            font-style: italic;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        strong {
            color: var(--accent-gold);
            font-weight: 700;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .interactive-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(0, 204, 255, 0.2);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin: 2rem 0;
            transition: transform var(--transition-speed), box-shadow var(--transition-speed);
        }
        .interactive-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 204, 255, 0.15);
            border-color: var(--primary-color);
        }
        .user-feedback {
            background: var(--content-bg);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin-top: 3rem;
        }
        .user-feedback h2 {
            text-align: center;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-color);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: color var(--transition-speed);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent-gold);
        }
        .submit-btn {
            background: linear-gradient(90deg, var(--secondary-color), #ff3385);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            display: block;
            margin: 2rem auto;
            transition: all var(--transition-speed);
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #ff3385, var(--secondary-color));
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(255, 102, 196, 0.4);
        }
        .site-footer {
            margin-top: 4rem;
            padding: 2.5rem 0;
            border-top: 2px solid rgba(0, 204, 255, 0.3);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-links a {
            color: var(--text-muted);
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 0.8rem;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--border-radius);
            transition: background var(--transition-speed);
        }
        friend-link:hover {
            background: rgba(0, 204, 255, 0.1);
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 1.5rem;
        }
        @media (max-width: 1100px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                order: 3;
                max-width: 100%;
                margin: 1.5rem 0 0 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 2rem;
                right: 1rem;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--content-bg);
                padding: 1rem;
                border-radius: var(--border-radius);
                margin-top: 1rem;
            }
            .main-nav.active ul {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .my-logo {
                font-size: 2rem;
            }
        }