* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #2c5aa0; 
            --secondary: #d32f2f; 
            --accent: #ffc107; 
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #198754;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fff;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5rem; margin: 1rem 0; }
        li { margin-bottom: 0.5rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .site-header {
            background: linear-gradient(135deg, var(--primary), #1a3a6e);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--accent);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { font-size: 1.8rem; }
        .my-logo:hover { color: white; transform: scale(1.02); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin: 0;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav 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;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 0.75rem;
            color: var(--gray);
        }
        .breadcrumb a { color: var(--gray); }
        .breadcrumb a:hover { color: var(--primary); }
        .main-content {
            flex: 1;
            padding: 3rem 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .article-grid { grid-template-columns: 1fr; }
        }
        .article-body {
            font-size: 1.1rem;
        }
        .article-body h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        .article-body h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e9ecef;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin: 2rem 0 0.75rem;
        }
        .article-body h4 {
            font-size: 1.25rem;
            color: var(--secondary);
            margin: 1.5rem 0 0.5rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-body strong { color: var(--secondary); font-weight: 700; }
        .article-body em { font-style: italic; color: var(--gray); }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .article-body .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        .article-body .caption {
            text-align: center;
            font-size: 0.95rem;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 1px dotted var(--primary);
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #fce4ec);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--secondary);
            margin: 2rem 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--primary);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: bold;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .sidebar {
            padding-left: 2rem;
            border-left: 1px solid #dee2e6;
        }
        @media (max-width: 992px) {
            .sidebar {
                padding-left: 0;
                border-left: none;
                border-top: 1px solid #dee2e6;
                padding-top: 2rem;
            }
        }
        .sidebar-widget {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .search-form {
            display: flex;
            margin-bottom: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid #ced4da;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover { background: var(--secondary); }
        .rating-widget { text-align: center; }
        .stars { font-size: 1.8rem; color: #ffc107; margin: 0.5rem 0; cursor: pointer; }
        .stars i:hover { transform: scale(1.2); }
        .comment-form textarea, .comment-form input {
            width: 100%;
            padding: 0.75rem;
            margin-bottom: 1rem;
            border: 2px solid #ced4da;
            border-radius: var(--border-radius);
            font-family: inherit;
        }
        .comment-form button {
            background: var(--success);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            width: 100%;
        }
        .comment-form button:hover { background: #146c43; }
        .site-footer {
            background: var(--dark);
            color: #adb5bd;
            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;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary);
        }
        friend-link {
            display: block;
            margin-bottom: 0.75rem;
        }
        friend-link a {
            color: #adb5bd;
        }
        friend-link a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .update-time {
            font-size: 0.9rem;
            color: var(--gray);
            background: #f8f9fa;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            display: inline-block;
            margin-bottom: 2rem;
        }
        .emoji { font-size: 1.2em; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: var(--shadow);
                border-top: 2px solid var(--accent);
            }
            .main-nav.active ul { display: flex; }
            .main-nav ul li { margin: 0.5rem 0; }
            .article-body h1 { font-size: 2.2rem; }
            .article-body h2 { font-size: 1.8rem; }
            .stats-grid { grid-template-columns: 1fr; }
        }