* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #0a3d62; 
            --secondary: #e74c3c; 
            --accent: #f39c12; 
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #7f8c8d;
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to right, 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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #fff, var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent);
            bottom: 0;
            left: 0;
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
            background: none;
            border: none;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-container h2 {
            margin-bottom: 1rem;
            color: var(--primary);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ddd;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--accent);
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--accent);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
            align-self: start;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--accent);
            padding-left: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--dark);
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1rem;
            background: #f8f9fa;
            border-left: 4px solid var(--accent);
        }
        .highlight {
            background-color: #fff9e6;
            padding: 2rem;
            border-radius: 10px;
            border-left: 5px solid var(--accent);
            margin: 2rem 0;
        }
        .highlight strong {
            color: var(--primary);
        }
        .note {
            background-color: #e8f4fc;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 5px solid #3498db;
            margin: 1.5rem 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 2.5rem 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.01);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .content-link {
            background-color: #f0f7ff;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .content-link:hover {
            background-color: #e1f0ff;
            text-decoration: none;
        }
        .interaction-forms {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
            margin-top: 3rem;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.2);
        }
        .form-submit {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-block;
        }
        .form-submit:hover {
            background: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(243, 156, 18, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: var(--light);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #bbb;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .friend-links {
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        .friend-links h4 {
            color: var(--light);
            margin-bottom: 1rem;
        }
        .friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 6px;
            margin: 0.3rem;
            color: #ddd;
            transition: var(--transition);
        }
        .friend-link:hover {
            background: var(--accent);
            color: var(--dark);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        .last-updated {
            background: #e8f5e9;
            padding: 1rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
            color: #2e7d32;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                display: block;
                padding: 1rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 2rem 1.5rem;
            }
            .sidebar {
                padding: 1.5rem;
            }
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .emoji { font-size: 1.2em; }