* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #e67e22;
            --primary-dark: #d35400;
            --secondary: #2c3e50;
            --accent: #3498db;
            --light: #ecf0f1;
            --dark: #1a1a1a;
            --gray: #95a5a6;
            --danger: #e74c3c;
            --success: #27ae60;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #1a1a1a 0%, #2c3e50 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            color: var(--light);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-top: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary);
            border-bottom: 3px solid var(--primary);
            padding-bottom: 0.5rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: #ddd;
        }
        .header {
            background: rgba(26, 26, 26, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
            border-bottom: 3px solid var(--primary);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: var(--light);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: var(--dark);
            box-shadow: -5px 0 15px rgba(0,0,0,0.3);
            transition: var(--transition);
            z-index: 1001;
            padding: 2rem;
        }
        .mobile-nav.active {
            right: 0;
        }
        .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 3rem;
        }
        .mobile-nav-link {
            color: var(--light);
            text-decoration: none;
            font-size: 1.2rem;
            padding: 0.8rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .mobile-nav-link:hover {
            background: var(--primary);
            padding-left: 1.5rem;
        }
        .close-menu {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(44, 62, 80, 0.7);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb i {
            color: var(--gray);
        }
        .main-content {
            background: rgba(26, 26, 26, 0.9);
            border-radius: var(--radius);
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid rgba(255,255,255,0.1);
        }
        .author-info {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .author-img {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--primary);
        }
        .publish-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .article-content {
            max-width: 900px;
            margin: 0 auto;
        }
        .intro-box {
            background: linear-gradient(135deg, rgba(52, 152, 219, 0.1), rgba(231, 126, 34, 0.1));
            border-left: 5px solid var(--primary);
            padding: 2rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .warning-box {
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(192, 57, 43, 0.1));
            border: 2px solid var(--danger);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .warning-box h3 {
            color: var(--danger);
        }
        .tip-box {
            background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(46, 204, 113, 0.1));
            border: 2px solid var(--success);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .tip-box h3 {
            color: var(--success);
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 3px solid var(--primary);
        }
        .image-caption {
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(231, 126, 34, 0.3) 0%, rgba(231, 126, 34, 0.1) 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .keyword-link {
            color: var(--accent);
            text-decoration: none;
            border-bottom: 2px dotted var(--accent);
            transition: var(--transition);
        }
        .keyword-link:hover {
            color: var(--primary);
            border-bottom-style: solid;
        }
        .interactive-section {
            background: rgba(44, 62, 80, 0.7);
            border-radius: var(--radius);
            padding: 2rem;
            margin: 3rem 0;
        }
        .search-box, .comment-box, .rating-box {
            background: rgba(26, 26, 26, 0.8);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--light);
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid rgba(255,255,255,0.2);
            border-radius: var(--radius);
            background: rgba(255,255,255,0.1);
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(231, 126, 34, 0.2);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(231, 126, 34, 0.4);
        }
        .btn-secondary {
            background: linear-gradient(to right, var(--accent), #2980b9);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #f1c40f;
            transform: scale(1.2);
        }
        .internal-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: rgba(44, 62, 80, 0.7);
            padding: 1.5rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            background: rgba(52, 152, 219, 0.2);
            border-left: 4px solid var(--accent);
        }
        .web-link a {
            color: var(--light);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        .footer {
            background: rgba(26, 26, 26, 0.95);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 3px solid var(--primary);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links-list {
            list-style: none;
        }
        .footer-links-list li {
            margin-bottom: 0.8rem;
        }
        .footer-links-list a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-links-list a:hover {
            color: var(--primary);
            padding-left: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 15px;
            }
            .main-content {
                padding: 1.5rem;
            }
            .internal-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }