* { 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: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight { background-color: #fff3cd; padding: 2px 5px; border-radius: 3px; }
        .emoji { font-size: 1.2em; }
        :root {
            --primary: #1e3a8a; 
            --secondary: #dc2626; 
            --accent: #f59e0b; 
            --light: #f1f5f9;
            --dark: #0f172a;
            --text: #334155;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 1.8rem;
            font-weight: 800;
            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-desktop a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            transition: color 0.3s;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover, .nav-desktop a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: #cbd5e1;
            text-decoration: none;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #334155;
        }
        .nav-mobile a:hover { background: #1e293b; color: var(--accent); }
        .breadcrumb {
            background: var(--light);
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e1;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-container {
            padding: 2rem 0 1rem;
            background: white;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-button:hover { background: var(--secondary); }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        }
        .article-meta {
            color: #64748b;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        h1 { font-size: 2.8rem; color: var(--dark); margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2rem; color: var(--primary); margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--accent); }
        h3 { font-size: 1.6rem; color: var(--secondary); margin: 2rem 0 0.8rem; }
        h4 { font-size: 1.3rem; color: #475569; margin: 1.5rem 0 0.6rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
        }
        p { margin-bottom: 1.2rem; color: var(--text); text-align: justify; }
        .lead { font-size: 1.2rem; font-weight: 500; color: var(--primary); }
        .article-content a {
            color: var(--secondary);
            text-decoration: none;
            border-bottom: 1px dotted var(--secondary);
            transition: all 0.3s;
        }
        .article-content a:hover {
            color: var(--primary);
            border-bottom-style: solid;
            background-color: #fef3c7;
        }
        .featured-image {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: #64748b;
            padding: 0.8rem;
            background: #f8fafc;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #cbd5e1;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #e2e8f0;
        }
        .related-links a {
            color: var(--text);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.3s;
        }
        .related-links a:hover { color: var(--secondary); }
        .related-links i { color: var(--accent); }
        .user-interaction {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 3px solid var(--light);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .interaction-form {
            background: #f8fafc;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
        }
        .interaction-form h3 { margin-top: 0; }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #475569;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e1;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        textarea.form-control { min-height: 120px; resize: vertical; }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active { color: var(--accent); }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: var(--secondary); }
        .site-footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: var(--accent); }
        friend-link {
            display: block;
            background: #1e293b;
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 0.7rem;
        }
        friend-link a {
            color: #38bdf8 !important;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }