* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #3498db;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --gray-light: #f8f9fa;
            --gray-medium: #e9ecef;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --border-radius: 8px;
            --shadow: 0 4px 6px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--gray-light);
            max-width: 100%;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color), #1a252f);
            color: white;
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent-color);
            transform: translateY(-2px);
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: rgba(255,255,255,0.1);
            color: var(--accent-color);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: var(--spacing-xs);
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: var(--gray-medium);
            padding: var(--spacing-sm);
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
            flex-wrap: wrap;
            gap: var(--spacing-xs);
        }
        .breadcrumb-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .breadcrumb-item a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb-item a:hover {
            text-decoration: underline;
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '›';
            color: #6c757d;
        }
        .main-container {
            max-width: 1200px;
            margin: var(--spacing-md) auto;
            padding: 0 var(--spacing-sm);
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: var(--spacing-md);
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-left: var(--spacing-sm);
            border-left: 4px solid var(--accent-color);
        }
        h3 {
            color: var(--dark-color);
            font-size: 1.5rem;
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }
        h4 {
            color: var(--dark-color);
            font-size: 1.2rem;
            margin: var(--spacing-sm) 0;
        }
        p {
            margin-bottom: var(--spacing-md);
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--primary-color);
            font-weight: 600;
            background: linear-gradient(to right, var(--gray-medium), transparent);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-lg);
        }
        .highlight {
            background-color: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .stats-box {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-md);
            text-align: center;
        }
        .stat-item {
            padding: var(--spacing-sm);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            display: block;
            color: var(--secondary-color);
        }
        .stat-label {
            font-size: 1rem;
            opacity: 0.9;
        }
        .content-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: block;
        }
        .content-image:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 15px rgba(0,0,0,0.2);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: var(--spacing-xs);
            font-size: 0.9rem;
        }
        .interactive-section {
            background: var(--gray-light);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin: var(--spacing-lg) 0;
            border: 2px solid var(--accent-color);
        }
        .search-form,
        .comment-form,
        .rating-form {
            display: grid;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-sm);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        input, textarea, select {
            padding: var(--spacing-sm);
            border: 2px solid var(--gray-medium);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, var(--accent-color), #2980b9);
            color: white;
            border: none;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #2980b9, var(--accent-color));
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: var(--spacing-sm) 0;
        }
        .star {
            cursor: pointer;
            color: #ddd;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
            transform: scale(1.2);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            color: var(--primary-color);
            border-bottom: 2px solid var(--secondary-color);
            padding-bottom: var(--spacing-xs);
            margin-bottom: var(--spacing-md);
            font-size: 1.3rem;
        }
        .link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }
        .link-list a {
            color: var(--text-color);
            text-decoration: none;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .link-list a:hover {
            background-color: var(--accent-color);
            color: white;
            padding-left: var(--spacing-md);
        }
        .link-list i {
            color: var(--secondary-color);
        }
        .site-footer {
            background: var(--dark-color);
            color: white;
            padding: var(--spacing-lg) 0 0;
            margin-top: var(--spacing-lg);
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
        }
        .footer-section h3 {
            color: white;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: var(--spacing-xs);
            margin-bottom: var(--spacing-md);
        }
        friend-link {
            display: block;
            padding: var(--spacing-xs) 0;
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            transition: var(--transition);
        }
        friend-link a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: var(--spacing-md);
            margin-top: var(--spacing-lg);
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        .update-time {
            background: var(--secondary-color);
            color: white;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            display: inline-block;
            margin: var(--spacing-md) 0;
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background-color: var(--primary-color);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 27px rgba(0,0,0,0.05);
                padding: var(--spacing-md) 0;
                z-index: 999;
            }
            .nav-links.active {
                left: 0;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }
            .hamburger.active span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }
        @media print {
            .site-header,
            .sidebar,
            .interactive-section,
            .site-footer {
                display: none;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            body {
                background: white;
                color: black;
                font-size: 12pt;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        :focus-visible {
            outline: 3px solid var(--accent-color);
            outline-offset: 2px;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }