:root {
            --primary: #2c5aa0;
            --secondary: #d4af37;
            --accent: #9c27b0;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --container-max: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #ffffff;
            overflow-x: hidden;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #1a3a6e 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--secondary);
            transform: translateY(-2px);
        }
        .my-logo i {
            color: var(--secondary);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover {
            color: var(--secondary);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--primary);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.1);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background: var(--light);
            padding: 0.8rem 1.5rem;
            border-bottom: 1px solid #eaeaea;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 0.3rem;
        }
        main {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 2rem 1.5rem;
        }
        article {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.5rem;
            color: #2c5aa0;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.25rem;
            color: #3a6bc5;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        em {
            color: var(--accent);
            font-style: italic;
        }
        .intro {
            font-size: 1.2rem;
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 1.5rem;
            border-left: 5px solid var(--secondary);
            border-radius: var(--radius);
            margin-bottom: 2.5rem;
        }
        .highlight-box {
            background: #f0f7ff;
            border: 1px solid #c5d8f1;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.1rem;
            color: var(--gray);
            border-left: 4px solid var(--secondary);
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: var(--primary);
            margin-top: 0.5rem;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            border-bottom: 1px dashed var(--primary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--accent);
            border-bottom: 1px solid var(--accent);
        }
        .interactive-section {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--secondary);
        }
        .section-title {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1.5rem;
        }
        .section-title i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .search-container {
            display: flex;
            margin: 1rem 0 2rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background: #1a3a6e;
        }
        .rating-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .rating-stars .star {
            color: #ddd;
            transition: var(--transition);
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffc107;
        }
        .rating-form {
            display: grid;
            gap: 1rem;
            margin-top: 1rem;
        }
        .rating-form input,
        .rating-form textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-family: inherit;
        }
        .rating-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-button:hover {
            background: #1a3a6e;
            transform: translateY(-2px);
        }
        .comments-container {
            margin-top: 2rem;
        }
        .comment {
            background: #f8f9fa;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
        }
        footer {
            background: linear-gradient(135deg, #1a3a6e 0%, var(--primary) 100%);
            color: white;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: var(--container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            border-bottom: 2px solid rgba(255,255,255,0.2);
            padding-bottom: 0.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 0.3rem;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
            border: 1px solid rgba(255,255,255,0.1);
        }
        friend-link a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .header-container { padding: 0 1rem; }
            main { padding: 1.5rem 1rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.6rem; }
            h3 { font-size: 1.3rem; }
            .intro { font-size: 1.1rem; padding: 1.2rem; }
            .interactive-section { padding: 1.5rem; }
            .footer-container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            html { font-size: 15px; }
            h1 { font-size: 1.6rem; }
            .featured-image { max-height: 300px; }
            .search-container { flex-direction: column; }
            .search-input { border-radius: var(--radius); margin-bottom: 0.5rem; }
            .search-button { border-radius: var(--radius); padding: 0.8rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .updated-time { 
            background: #fff8e1; 
            padding: 0.5rem 1rem; 
            border-radius: var(--radius);
            display: inline-block;
            margin-bottom: 2rem;
            font-size: 0.9rem;
            border-left: 4px solid #ffc107;
        }