* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff4081;
            --accent: #00bcd4;
            --light: #f5f5f7;
            --dark: #121212;
            --text: #333333;
            --text-light: #666666;
            --border: #e0e0e0;
            --success: #4caf50;
            --warning: #ff9800;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --radius: 8px;
            --container-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--light);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent);
            margin-top: 2.5rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--dark);
            margin-top: 2rem;
            border-bottom: 2px dashed var(--border);
            padding-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
            border-bottom: 1px dotted transparent;
        }
        a:hover {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
        }
        strong, b {
            color: var(--secondary);
            font-weight: 700;
        }
        em {
            color: var(--accent);
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            background: linear-gradient(90deg, rgba(255,64,129,0.05) 0%, rgba(255,255,255,0) 100%);
            font-style: italic;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 2rem;
        }
        header {
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.05);
            text-shadow: 0 0 20px rgba(0,188,212,0.3);
        }
        .breadcrumb {
            background: rgba(255,255,255,0.1);
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: rgba(255,255,255,0.9);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            font-size: 0.8rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        main {
            background: white;
            padding: 3rem 0;
            box-shadow: var(--shadow);
            border-radius: var(--radius);
            margin: 2rem auto;
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,64,129,0.05) 0%, rgba(255,255,255,0) 70%);
            z-index: 0;
        }
        .content-wrapper {
            position: relative;
            z-index: 1;
        }
        .hero {
            text-align: center;
            padding: 3rem 0;
            margin-bottom: 3rem;
            background: linear-gradient(135deg, rgba(26,35,126,0.03) 0%, rgba(0,188,212,0.03) 100%);
            border-radius: var(--radius);
            border: 1px solid rgba(0,188,212,0.1);
        }
        .hero p {
            font-size: 1.3rem;
            color: var(--text-light);
            max-width: 800px;
            margin: 0 auto;
        }
        .article-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .article-content p {
            text-align: justify;
            hyphens: auto;
            margin-bottom: 1.8rem;
            padding: 0 0.5rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(255,64,129,0.1) 0%, rgba(0,188,212,0.1) 100%);
            padding: 2rem;
            border-radius: var(--radius);
            margin: 2.5rem 0;
            border-left: 4px solid var(--secondary);
        }
        .data-point {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-weight: bold;
            margin: 0 0.3rem;
            font-size: 0.9rem;
            vertical-align: middle;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            margin: 2.5rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 4rem 0;
        }
        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.12);
            border-color: var(--accent);
        }
        .feature-card i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1rem;
            display: block;
        }
        .search-box, .comment-form, .rating-form {
            background: var(--light);
            padding: 2rem;
            border-radius: var(--radius);
            margin: 3rem 0;
            border: 1px solid var(--border);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary);
        }
        input, textarea, select {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,188,212,0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        button, .btn {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        button:hover, .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0,188,212,0.3);
            background: linear-gradient(135deg, var(--accent), var(--primary));
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--warning);
            transform: scale(1.2);
        }
        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background: rgba(0,188,212,0.05);
            border-radius: var(--radius);
        }
        .related-links a {
            background: white;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            border: 2px solid var(--border);
            font-weight: 600;
            transition: var(--transition);
        }
        .related-links a:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .update-info {
            text-align: center;
            padding: 1.5rem;
            background: linear-gradient(90deg, rgba(76,175,80,0.1) 0%, rgba(255,255,255,0) 100%);
            border-radius: var(--radius);
            margin: 2rem 0;
            color: var(--success);
            font-weight: 600;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: var(--accent);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: rgba(255,255,255,0.8);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 1rem 0;
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent);
            transform: translateX(10px);
        }
        friend-link a {
            color: var(--accent);
            font-weight: 700;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .container { padding: 0 1.5rem; }
        }
        @media (max-width: 768px) {
            .header-top { flex-direction: column; gap: 1rem; }
            nav ul { 
                flex-direction: column; 
                gap: 1rem;
                display: none;
                width: 100%;
                padding: 1rem 0;
            }
            nav ul.active { display: flex; }
            .hamburger { display: block; }
            .features { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .container { padding: 0 1rem; }
            .hero { padding: 2rem 0; }
            .search-box, .comment-form, .rating-form { padding: 1.5rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        @media print {
            header, footer, .search-box, .comment-form, .rating-form { display: none; }
            body { background: white; }
            main { box-shadow: none; margin: 0; }
        }