* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            padding-bottom: 2rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #0d1b3e 0%, #1a3a6a 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(13, 27, 62, 0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: #fff;
            text-decoration: none;
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: #ffde59;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e0e9ff;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 222, 89, 0.15);
            color: #ffde59;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f0f5ff;
            border-bottom: 1px solid #d1ddec;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #666;
        }
        .breadcrumb a {
            color: #1a3a6a;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        .content-area {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        h1 {
            color: #0d1b3e;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ffde59;
            padding-left: 1rem;
        }
        h2 {
            color: #1a3a6a;
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeff7;
        }
        h3 {
            color: #2a4b8c;
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background-color: #f8fbff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #1a3a6a;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
            color: #b8860b;
        }
        .keyword-link {
            color: #1a73e8;
            text-decoration: none;
            border-bottom: 1px dashed #1a73e8;
        }
        .keyword-link:hover {
            border-bottom-style: solid;
            background-color: #f1f8ff;
        }
        .featured-img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            border: 1px solid #e0e0e0;
        }
        .info-box {
            background: linear-gradient(to right, #e8f4ff, #f0f9ff);
            border-left: 5px solid #4d90fe;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box h3 { margin-top: 0; color: #1a73e8; }
        .search-box {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            border: 1px solid #dee2e6;
        }
        .search-box form {
            display: flex;
            gap: 10px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
        }
        .search-box button {
            background: #1a3a6a;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-box button:hover { background: #0d1b3e; }
        .comment-section, .rating-section {
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid #e1e8ed;
        }
        .comment-section h2, .rating-section h2 {
            color: #333;
            border-bottom-color: #ddd;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .comment-form textarea, .rating-form select, .comment-form input {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        .comment-form button, .rating-form button {
            align-self: flex-start;
            background: #28a745;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-form button:hover { background: #218838; }
        .rating-form button { background: #ffc107; color: #333; }
        .rating-form button:hover { background: #e0a800; }
        .star-rating { display: flex; gap: 5px; margin-bottom: 10px; }
        .star-rating i { color: #ffc107; font-size: 1.5rem; cursor: pointer; }
        .related-links {
            background: #f1f7ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .related-links h3 { color: #1a3a6a; margin-top: 0; }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 12px;
            margin-top: 1rem;
        }
        .related-links li a {
            display: block;
            padding: 10px 15px;
            background: white;
            border-radius: 6px;
            color: #1a3a6a;
            text-decoration: none;
            border: 1px solid #d1ddec;
            transition: all 0.2s;
        }
        .related-links li a:hover {
            background: #1a3a6a;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(26, 58, 106, 0.2);
        }
        footer {
            background: #0d1b3e;
            color: #c2d1e5;
            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: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-section h4 {
            color: #ffde59;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #a3bce6;
            text-decoration: none;
            transition: color 0.3s;
        }
        friend-link a:hover { color: #ffde59; text-decoration: underline; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3f66;
            color: #8a9bba;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .main-nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            .main-nav.active { display: block; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; }
            .main-nav a {
                display: block;
                padding: 0.8rem 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .related-links ul { grid-template-columns: 1fr; }
            .search-box form { flex-direction: column; }
            .search-box button { width: 100%; }
        }