* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #f0f4f8 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: #fff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: #ffd700; }
        .logo span { background: linear-gradient(90deg, #ffd700, #ffecb3); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .desktop-nav ul {
            display: flex;
            gap: 25px;
        }
        .desktop-nav a {
            padding: 8px 12px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .desktop-nav a:hover { background: rgba(255, 255, 255, 0.15); }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: #283593;
            padding: 20px;
            border-top: 1px solid #3949ab;
        }
        .mobile-nav.active { display: block; }
        .mobile-nav ul { display: flex; flex-direction: column; gap: 15px; }
        .mobile-nav a { display: block; padding: 10px; border-radius: 4px; }
        .mobile-nav a:hover { background: rgba(255, 255, 255, 0.1); }
        .breadcrumb {
            padding: 10px 0;
            background: #e8eaf6;
            font-size: 0.85rem;
            color: #5c6bc0;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { margin: 0 5px; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        article { background: white; padding: 30px; border-radius: 12px; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05); }
        .article-header { margin-bottom: 30px; }
        .article-header h1 {
            font-size: 2.5rem;
            color: #1a237e;
            line-height: 1.2;
            margin-bottom: 15px;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: #666;
            font-size: 0.9rem;
            border-bottom: 1px solid #eee;
            padding-bottom: 15px;
        }
        .article-meta span i { margin-right: 5px; color: #3949ab; }
        .featured-image {
            margin: 25px 0;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .featured-image figcaption {
            padding: 10px;
            background: #f5f5f5;
            font-size: 0.9rem;
            color: #666;
            text-align: center;
        }
        .content-section {
            margin-bottom: 40px;
        }
        h2 {
            font-size: 1.8rem;
            color: #283593;
            margin: 25px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #e8eaf6;
        }
        h3 {
            font-size: 1.4rem;
            color: #3949ab;
            margin: 20px 0 12px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: linear-gradient(90deg, #e3f2fd, #bbdefb);
            padding: 20px;
            border-left: 5px solid #2196f3;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight strong { color: #0d47a1; }
        .tip-box {
            background: #fff8e1;
            border-left: 5px solid #ffb300;
            padding: 18px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box i { color: #ff9800; margin-right: 10px; }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 25px 0;
        }
        .stat-card {
            background: #f5f5f5;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1a237e;
            display: block;
        }
        .internal-link {
            color: #1a88ff;
            font-weight: 600;
            border-bottom: 1px dotted #1a88ff;
        }
        .internal-link:hover { color: #0d47a1; border-bottom-style: solid; }
        .interactive-box {
            background: #f8fdff;
            border: 2px dashed #90caf9;
            border-radius: 10px;
            padding: 25px;
            margin: 30px 0;
        }
        .interactive-box h3 { margin-top: 0; }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 15px;
        }
        .form-group { display: flex; flex-direction: column; }
        .form-group label { font-weight: 600; margin-bottom: 5px; color: #555; }
        .form-control {
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus { outline: none; border-color: #3949ab; box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.1); }
        .btn {
            background: linear-gradient(90deg, #3949ab, #5c6bc0);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: all 0.3s;
        }
        .btn:hover { background: linear-gradient(90deg, #303f9f, #3949ab); transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.15); }
        .stars { display: flex; gap: 5px; margin: 10px 0; }
        .star { font-size: 1.5rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #ffc107; }
        .quote {
            font-style: italic;
            border-left: 4px solid #8bc34a;
            padding-left: 20px;
            margin: 25px 0;
            color: #555;
            background: #f9f9f9;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .quote-author { text-align: right; font-weight: 600; color: #388e3c; margin-top: 10px; }
        aside { background: white; padding: 25px; border-radius: 12px; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05); }
        .sidebar-widget { margin-bottom: 30px; }
        .sidebar-widget h3 { font-size: 1.3rem; margin-bottom: 15px; color: #1a237e; }
        .popular-links { display: flex; flex-direction: column; gap: 12px; }
        .popular-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 15px;
            background: #f5f5f5;
            border-radius: 6px;
            font-weight: 500;
        }
        .popular-links a:hover { background: #e0e0e0; }
        .popular-links i { color: #3949ab; }
        .tags { display: flex; flex-wrap: wrap; gap: 10px; }
        .tag {
            background: #e8eaf6;
            padding: 8px 15px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #3949ab;
        }
        .tag:hover { background: #c5cae9; }
        .footer-links {
            background: #1a237e;
            color: white;
            padding: 40px 0;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 6px;
            transition: background 0.3s;
        }
        .web-link:hover { background: rgba(255, 255, 255, 0.1); }
        .web-link a { display: block; color: #bbdefb; }
        .web-link a:hover { color: white; }
        .site-footer {
            background: #0d153a;
            color: #b0bec5;
            padding: 30px 0;
            text-align: center;
            font-size: 0.9rem;
        }
        .site-footer p { margin-bottom: 10px; text-align: center; }
        .social-links { display: flex; justify-content: center; gap: 20px; margin: 20px 0; }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            font-size: 1.2rem;
        }
        .social-links a:hover { background: rgba(255, 255, 255, 0.2); transform: scale(1.1); }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu-toggle { display: block; }
            .header-top { padding: 12px 0; }
            .logo { font-size: 1.5rem; }
            .article-header h1 { font-size: 1.8rem; }
            .article-meta { flex-direction: column; gap: 10px; }
            .main-content { gap: 25px; padding: 20px 0; }
            article, aside { padding: 20px; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.2rem; }
            .interactive-box { padding: 20px; }
            .stats-grid { grid-template-columns: 1fr; }
        }