* { 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: 100%;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: #0d6efd; transition: color 0.3s; }
        a:hover { color: #0056b3; }
        ul, ol { padding-left: 1.5em; margin-bottom: 1em; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .text-center { text-align: center; }
        .site-header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            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: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #ffdd00; }
        .my-logo span { background: linear-gradient(to right, #ffdd00, #ffffff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.75rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding-left: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #6c757d;
        }
        .search-section {
            background-color: #ffffff;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2.5rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.85rem 1.2rem;
            border: 2px solid #0d6efd;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: #0d6efd;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover { background-color: #0056b3; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffdd00;
        }
        h3 {
            font-size: 1.6rem;
            color: #3a6bc9;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #5a8dee;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p { margin-bottom: 1.2rem; }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #555;
            margin-bottom: 1.5rem;
        }
        .highlight {
            background-color: #fff9db;
            padding: 1.5rem;
            border-left: 5px solid #ffdd00;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .article-img {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .rating-widget, .comment-widget {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #dee2e6;
            margin-top: 2rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .star { color: #ddd; cursor: pointer; font-size: 1.5rem; }
        .star:hover, .star.active { color: #ffc107; }
        .rating-form, .comment-form {
            display: grid;
            gap: 1rem;
            margin-top: 1rem;
        }
        .form-input, .form-textarea {
            padding: 0.75rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
        }
        .form-textarea { min-height: 120px; resize: vertical; }
        .form-btn {
            background-color: #20c997;
            color: white;
            border: none;
            padding: 0.75rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .form-btn:hover { background-color: #199d76; }
        .site-footer {
            background-color: #212529;
            color: #adb5bd;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 {
            color: #ffffff;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid #0d6efd;
            padding-bottom: 0.5rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.5rem; }
        .footer-links a { color: #adb5bd; }
        .footer-links a:hover { color: #0d6efd; }
        friend-link {
            display: block;
            background-color: #2d3748;
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 0.5rem;
            border-left: 4px solid #0d6efd;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
            color: #6c757d;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
            h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                background-color: rgba(30, 60, 114, 0.95);
                padding: 1rem;
                border-radius: 8px;
            }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            .article-content { padding: 1.5rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
        }