:root {
            --primary-color: #4a3aff;
            --secondary-color: #ff4a8d;
            --accent-color: #00e5ff;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
            --transition: all 0.3s ease;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f5f7ff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(74, 58, 255, 0.3);
            color: white;
        }
        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: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -1px;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: inherit;
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid #e0e0e0;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-form button {
            padding: 0 25px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
        }
        nav {
            background-color: var(--dark-color);
            position: relative;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            display: block;
            padding: 18px 20px;
            color: white;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: white;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f0f2ff;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--gray-color);
        }
        main {
            padding: 40px 0;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 30px 0;
            overflow: hidden;
        }
        article {
            padding: 0 30px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 6px solid var(--primary-color);
            padding-left: 20px;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--dark-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .content-highlight {
            background: linear-gradient(135deg, #f0f2ff, #e6f7ff);
            padding: 25px;
            border-radius: var(--border-radius);
            margin: 30px 0;
            border-left: 5px solid var(--primary-color);
        }
        .content-highlight p:last-child {
            margin-bottom: 0;
        }
        .infographic {
            margin: 40px auto;
            max-width: 800px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .infographic img {
            width: 100%;
            height: auto;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .rating-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: var(--shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .rating-table th, .rating-table td {
            padding: 18px 15px;
            text-align: left;
            border-bottom: 1px solid #e0e0e0;
        }
        .rating-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .rating-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        .rating-table tr:hover {
            background-color: #f0f2ff;
        }
        .quote {
            font-size: 1.3rem;
            font-style: italic;
            color: var(--dark-color);
            padding: 30px;
            margin: 40px 0;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--secondary-color);
            position: relative;
        }
        .quote::before {
            content: "“";
            font-size: 4rem;
            color: var(--secondary-color);
            position: absolute;
            top: 10px;
            left: 20px;
            opacity: 0.3;
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 40px;
            border-radius: var(--border-radius);
            margin: 50px 0;
        }
        .interactive-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        .interactive-card {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .interactive-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .interactive-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interactive-card i {
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
        }
        .rating-stars i {
            color: #ffc107;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        form {
            margin-top: 20px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--accent-color), white);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer-links h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 15px 0;
            padding: 10px 15px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .update-time {
            background-color: #fff8e1;
            padding: 15px;
            border-radius: var(--border-radius);
            margin: 30px 0;
            display: flex;
            align-items: center;
            gap: 15px;
            font-weight: 600;
        }
        .update-time i {
            color: #ff9800;
            font-size: 1.5rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: var(--dark-color);
                flex-direction: column;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                width: 100%;
            }
            .hamburger {
                display: block;
            }
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                max-width: 100%;
            }
        }
        @media (max-width: 768px) {
            html {
                font-size: 14px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 0 15px;
            }
            .interactive-section {
                padding: 30px 20px;
            }
            .interactive-card {
                padding: 20px;
            }
            .quote {
                padding: 20px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-table {
                font-size: 0.9rem;
            }
            .rating-table th, .rating-table td {
                padding: 12px 8px;
            }
        }