:root {
            --primary: #4A90E2;
            --secondary: #F5A623;
            --accent: #7ED321;
            --dark: #2C3E50;
            --light: #ECF0F1;
            --text: #333333;
            --gray: #95A5A6;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #1a2530 100%);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--secondary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: translateY(-3px);
            color: var(--accent);
        }
        .my-logo i {
            font-size: 2.5rem;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 1024px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid var(--secondary);
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--secondary);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--dark);
            background: linear-gradient(to right, var(--light), transparent);
            padding: 1.5rem;
            border-left: 5px solid var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 2rem 0;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .stats-box {
            background: linear-gradient(135deg, var(--primary), #2670c9);
            color: white;
            padding: 2rem;
            border-radius: var(--radius);
            text-align: center;
            margin: 2.5rem 0;
            box-shadow: var(--shadow);
        }
        .stats-number {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            color: var(--secondary);
        }
        .stats-label {
            font-size: 1.5rem;
            margin-top: 0.5rem;
            opacity: 0.9;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        img:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .figure-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        .search-widget {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
        }
        .search-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-btn:hover {
            background-color: #2670c9;
            transform: translateY(-2px);
        }
        .rating-widget {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 3rem 0;
            border: 1px solid #eee;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 2rem;
            color: var(--gray);
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--secondary);
            transform: scale(1.2);
        }
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary), #2670c9);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin: 0 auto;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(74, 144, 226, 0.3);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--light);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: var(--text);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary);
            padding-left: 0.5rem;
        }
        .update-time {
            background: linear-gradient(135deg, var(--accent), #6bb81f);
            color: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            text-align: center;
        }
        .update-time i {
            font-size: 2rem;
            margin-bottom: 0.8rem;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h3 {
            color: var(--secondary);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 1.5rem 0;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        .friend-links a {
            background: rgba(255,255,255,0.15);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            text-decoration: none;
            transition: var(--transition);
        }
        .friend-links a:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        .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: 768px) {
            .site-header {
                padding: 1rem;
            }
            .menu-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .main-container {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .stats-number {
                font-size: 2.8rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .bold { font-weight: 700; }
        .italic { font-style: italic; }
        .underline { text-decoration: underline; }
        .emoji { font-size: 1.2em; }
        .color-primary { color: var(--primary); }
        .color-secondary { color: var(--secondary); }