:root {
            --primary-color: #4A6FA5;
            --secondary-color: #FF6B6B;
            --accent-color: #4ECDC4;
            --dark-color: #2C3E50;
            --light-color: #F7F9FC;
            --text-color: #333;
            --gray-color: #95A5A6;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--dark-color);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            flex-grow: 1;
            margin: 0 30px;
        }
        .search-input {
            flex-grow: 1;
            padding: 10px 15px;
            border: 2px solid var(--primary-color);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: var(--dark-color);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-color);
            cursor: pointer;
        }
        nav {
            background-color: var(--dark-color);
        }
        .nav-list {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-list a:hover {
            background-color: var(--primary-color);
        }
        .nav-list a.active {
            background-color: var(--secondary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f1f5f9;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 30px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--dark-color);
            font-size: 2.2rem;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        h3 {
            color: var(--dark-color);
            font-size: 1.4rem;
            margin: 25px 0 10px;
        }
        h4 {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 15px;
            text-align: justify;
        }
        .highlight {
            background-color: #FFF9E6;
            border-left: 4px solid var(--secondary-color);
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 20px 0;
            box-shadow: var(--shadow);
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
        }
        .content-link:hover {
            text-decoration: underline;
        }
        aside {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--shadow);
            height: fit-content;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--gray-color);
        }
        .rating-widget {
            text-align: center;
            padding: 20px;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
        }
        .stars {
            font-size: 1.5rem;
            color: #FFD700;
            margin: 10px 0;
        }
        .rate-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: var(--border-radius);
            cursor: pointer;
            margin-top: 10px;
            transition: var(--transition);
        }
        .rate-button:hover {
            background-color: var(--primary-color);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 5px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            padding: 10px;
            border: 1px solid var(--gray-color);
            border-radius: var(--border-radius);
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: var(--dark-color);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .friend-link {
            background-color: rgba(255,255,255,0.1);
            padding: 10px 15px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .friend-link a {
            color: white;
            text-decoration: none;
        }
        .friend-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin: 15px 0 0;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                display: none;
            }
            .nav-list.active {
                display: flex;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .update-time {
            background-color: #E8F5E9;
            padding: 10px 15px;
            border-radius: var(--border-radius);
            margin: 20px 0;
            font-size: 0.9rem;
            color: #2E7D32;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article {
            animation: fadeIn 0.5s ease-out;
        }