:root {
            --primary-dark: #1a365d;
            --primary-medium: #2d4a8a;
            --primary-light: #4c7ce0;
            --accent-warm: #d97706;
            --accent-cool: #0e9f6e;
            --text-dark: #1f2937;
            --text-medium: #4b5563;
            --text-light: #9ca3af;
            --bg-light: #f8fafc;
            --bg-offwhite: #f1f5f9;
            --border-color: #e5e7eb;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
            --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-warm);
        }
        .logo span {
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0.8rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fbbf24;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--primary-dark);
            padding: 1.5rem;
            box-shadow: var(--shadow-lg);
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            display: block;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            color: #fbbf24;
            padding-left: 1.2rem;
        }
        .breadcrumb {
            background-color: var(--bg-offwhite);
            padding: 1rem 0;
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary-medium);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow-sm);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--radius);
            padding: 1.8rem;
            box-shadow: var(--shadow-sm);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--primary-dark);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--accent-warm);
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid var(--accent-warm);
        }
        h2 {
            font-size: 2.1rem;
            color: var(--primary-medium);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--text-dark);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-medium);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.25rem;
            color: var(--text-medium);
            font-weight: 500;
            padding: 1.2rem;
            background-color: var(--bg-offwhite);
            border-left: 4px solid var(--accent-cool);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fef3c7;
            padding: 1.5rem;
            border-radius: var(--radius);
            border-left: 4px solid var(--accent-warm);
            margin: 1.5rem 0;
        }
        .quote {
            font-style: italic;
            color: var(--text-medium);
            padding: 1.5rem 2rem;
            border-left: 4px solid var(--primary-light);
            background-color: #eff6ff;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 1.8rem 0;
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        a.content-link {
            color: var(--primary-medium);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--primary-light);
            transition: var(--transition);
        }
        a.content-link:hover {
            color: var(--accent-warm);
            border-bottom-style: solid;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow-md);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .search-box, .comment-section, .rating-section {
            margin: 3rem 0;
            padding: 2rem;
            background-color: var(--bg-offwhite);
            border-radius: var(--radius);
        }
        .section-title {
            font-size: 1.5rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title i {
            color: var(--accent-cool);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--text-medium);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(76, 124, 224, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-medium), var(--primary-light));
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, var(--primary-dark), var(--primary-medium));
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #d1d5db;
            cursor: pointer;
            transition: color 0.2s;
            margin-bottom: 0;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #fbbf24;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow-sm);
            border-radius: var(--radius);
            overflow: hidden;
        }
        th, td {
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        th {
            background-color: var(--primary-dark);
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background-color: var(--bg-offwhite);
        }
        tr:hover {
            background-color: #e0f2fe;
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-logo span {
            color: #fbbf24;
        }
        .footer-links h4, .friend-links h4 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #fbbf24;
        }
        .footer-links ul, friend-link {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li, friend-link a {
            margin-bottom: 0.8rem;
        }
        .footer-links a, friend-link a {
            color: #cbd5e1;
            text-decoration: none;
            transition: var(--transition);
            display: inline-block;
        }
        .footer-links a:hover, friend-link a:hover {
            color: #fbbf24;
            transform: translateX(5px);
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-top: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .flex { display: flex; }
        .items-center { align-items: center; }
        .gap-1 { gap: 1rem; }
        .updated-time {
            background-color: #dcfce7;
            color: #065f46;
            padding: 0.7rem 1.2rem;
            border-radius: var(--radius);
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            font-weight: 600;
            margin-bottom: 2rem;
        }
        .emoji { font-size: 1.2em; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .article-content { padding: 1.5rem; }
            .sidebar-widget { padding: 1.5rem; }
            .main-content { gap: 2rem; padding: 2rem 0; }
            .footer-content { grid-template-columns: 1fr; gap: 2rem; }
        }