:root {
            --primary-dark: #1a1a2e;
            --primary-accent: #4cc9f0;
            --secondary-accent: #7209b7;
            --text-primary: #f8f9fa;
            --text-secondary: #adb5bd;
            --bg-card: #16213e;
            --bg-hover: #0f3460;
            --border-color: #2d4059;
            --success: #06d6a0;
            --warning: #ffd166;
            --danger: #ef476f;
            --spacing-unit: 1rem;
            --border-radius: 12px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0d0d1a 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
            text-shadow: 0 0 8px var(--primary-accent);
        }
        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-unit);
        }
        .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 {
            background-color: rgba(10, 10, 20, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--primary-accent);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
        }
        .nav-links a:hover, .nav-links a.active {
            background-color: var(--bg-hover);
            color: var(--primary-accent);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-primary);
            cursor: pointer;
        }
        .search-form-header {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .search-form-header input {
            padding: 0.6rem 1rem;
            background: var(--bg-card);
            border: none;
            color: var(--text-primary);
            width: 200px;
        }
        .search-form-header button {
            padding: 0.6rem 1.2rem;
            background: var(--secondary-accent);
            border: none;
            color: white;
            cursor: pointer;
        }
        .search-form-header button:hover {
            background: var(--primary-accent);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-accent);
        }
        .breadcrumb span {
            margin: 0 0.5rem;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(22, 33, 62, 0.7);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .update-time {
            color: var(--warning);
            font-weight: 600;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            background: linear-gradient(90deg, #fff, var(--primary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-accent);
            color: var(--primary-accent);
        }
        h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: var(--text-primary);
        }
        h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.75rem;
            color: var(--text-secondary);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--text-secondary);
            border-left: 4px solid var(--primary-accent);
            padding-left: 1.5rem;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(76, 201, 240, 0.15), transparent);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 4px solid var(--primary-accent);
        }
        .feature-img {
            margin: 2.5rem auto;
            text-align: center;
        }
        .feature-img img {
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-img img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            font-style: italic;
            color: var(--text-secondary);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        ul, ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.75rem;
        }
        strong {
            color: var(--warning);
            font-weight: 700;
        }
        em {
            color: var(--success);
            font-style: italic;
        }
        .quote {
            font-style: italic;
            font-size: 1.1rem;
            padding: 2rem;
            background: var(--bg-card);
            border-radius: var(--border-radius);
            margin: 2rem 0;
            position: relative;
            border-left: 5px solid var(--secondary-accent);
        }
        .quote::before {
            content: "\201C";
            font-size: 4rem;
            color: var(--secondary-accent);
            position: absolute;
            top: -1rem;
            left: 1rem;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-btn {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition);
        }
        .link-btn:hover {
            background: var(--bg-hover);
            border-color: var(--primary-accent);
            transform: translateY(-3px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: rgba(22, 33, 62, 0.7);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            border: 1px solid var(--border-color);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            margin-bottom: 1.2rem;
            color: var(--primary-accent);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: var(--warning);
            margin: 1rem 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form, .rating-form, .search-widget-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .comment-form textarea, .comment-form input, .rating-form select, .search-widget-form input {
            padding: 0.8rem;
            background: var(--primary-dark);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-primary);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            padding: 0.8rem 1.5rem;
            background: linear-gradient(90deg, var(--secondary-accent), var(--primary-accent));
            border: none;
            border-radius: 6px;
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(76, 201, 240, 0.4);
        }
        .btn-block {
            width: 100%;
        }
        .site-footer {
            background-color: #0a0a14;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--primary-accent);
            margin-bottom: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem 1rem;
            background: var(--bg-card);
            border-radius: 6px;
            margin-bottom: 0.5rem;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        friend-link:hover {
            border-left-color: var(--primary-accent);
            background: var(--bg-hover);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                order: 3;
                width: 100%;
                margin-top: 1rem;
                justify-content: space-between;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--bg-card);
                padding: 1rem;
                border-radius: var(--border-radius);
                position: absolute;
                top: 100%;
                left: 0;
                z-index: 999;
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .search-form-header {
                width: 100%;
                margin-top: 1rem;
                order: 2;
            }
            .search-form-header input {
                width: 100%;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }