:root {
            --primary: #4a00e0;
            --secondary: #8e2de2;
            --accent: #00d2ff;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --warning: #ffc107;
            --danger: #dc3545;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            --radius: 12px;
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            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: #333;
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul, ol {
            list-style-position: inside;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--accent), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .main-nav ul {
            display: flex;
            gap: 25px;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .search-box {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
        }
        .search-box input {
            border: none;
            padding: 10px 15px;
            background: transparent;
            color: white;
            min-width: 200px;
        }
        .search-box input::placeholder {
            color: rgba(255,255,255,0.7);
        }
        .search-box button {
            background: var(--accent);
            border: none;
            color: var(--dark);
            padding: 10px 20px;
            cursor: pointer;
            font-weight: bold;
        }
        .search-box button:hover {
            background: #00b8e6;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #f1f3f5;
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(rgba(26, 26, 46, 0.85), rgba(74, 0, 224, 0.8)), url('https://images.unsplash.com/photo-1635070041078-e363dbe005cb?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            padding: 80px 20px;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.95;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(0, 210, 255, 0.2);
            border: 2px solid var(--accent);
            border-radius: 50px;
            padding: 10px 25px;
            font-size: 1.2rem;
            font-weight: bold;
            margin-top: 20px;
        }
        .status-badge .dot {
            width: 12px;
            height: 12px;
            background: var(--success);
            border-radius: 50%;
            margin-right: 10px;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px 0 40px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2, .article-content h3, .article-content h4 {
            color: var(--primary);
            margin-top: 2.5em;
            margin-bottom: 0.8em;
            scroll-margin-top: 100px;
        }
        .article-content h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 10px;
        }
        .article-content h3 {
            font-size: 1.8rem;
        }
        .article-content h4 {
            font-size: 1.4rem;
            color: var(--dark);
        }
        .article-content p {
            margin-bottom: 1.5em;
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary);
            font-weight: 700;
        }
        .article-content em {
            color: var(--gray);
        }
        .article-content blockquote {
            border-left: 5px solid var(--accent);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            background: #f8f9ff;
            padding: 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 30px auto;
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        .info-box {
            background: linear-gradient(135deg, #f8f9ff, #e9ecef);
            border-left: 5px solid var(--primary);
            padding: 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 30px 0;
        }
        .related-links {
            background: #f1f3f5;
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
        }
        .related-links h4 {
            margin-top: 0;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
            margin-top: 15px;
        }
        .related-links li {
            background: white;
            padding: 12px 15px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .related-links li:hover {
            background: var(--primary);
            color: white;
            transform: translateX(5px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--gray);
            text-align: center;
            background: #f8f9fa;
            padding: 10px;
            border-radius: var(--radius);
            border: 1px dashed #ccc;
        }
        .update-time i {
            margin-right: 8px;
            color: var(--primary);
        }
        .comment-rating-section {
            margin-top: 50px;
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .comment-rating-section h2 {
            color: var(--primary);
            margin-bottom: 25px;
        }
        .rating-widget {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 25px;
            background: #f8f9ff;
            border-radius: var(--radius);
            margin-bottom: 30px;
        }
        .stars {
            font-size: 2.5rem;
            color: #ddd;
            margin-bottom: 15px;
            cursor: pointer;
        }
        .stars .star {
            margin: 0 5px;
            transition: var(--transition);
        }
        .stars .star:hover, .stars .star.active {
            color: var(--warning);
        }
        .comment-form, .rating-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.2);
        }
        .btn {
            padding: 15px 30px;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .btn-primary {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(74, 0, 224, 0.3);
        }
        .site-footer {
            background: var(--dark);
            color: #ddd;
            padding: 50px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-widget h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 15px 0;
            padding: 12px;
            background: rgba(255,255,255,0.05);
            border-radius: 8px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .main-nav ul {
                flex-direction: column;
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--dark);
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .main-nav.active ul {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .hamburger {
                display: block;
            }
            .search-box input {
                min-width: 150px;
            }
            .article-content h2 {
                font-size: 1.9rem;
            }
            .article-content h3 {
                font-size: 1.6rem;
            }
        }