* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            padding-top: 80px; 
        }
        a {
            text-decoration: none;
            color: #2c3e50;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            transition: transform 0.3s ease;
        }
        .logo a:hover {
            transform: scale(1.05);
        }
        .logo i {
            margin-right: 10px;
            color: #FFD700;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        nav ul {
            display: flex;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background 0.3s, color 0.3s;
        }
        nav a:hover, nav a.active {
            background: rgba(255,255,255,0.2);
            color: #FFD700;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #1a2980;
        }
        .breadcrumb span {
            color: #777;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a2980;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #26d0ce;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #2c3e50;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #FFD700;
        }
        h3 {
            font-size: 1.6rem;
            color: #34495e;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fffde7;
            padding: 1.5rem;
            border-left: 5px solid #FFD700;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .content-link {
            color: #1a2980;
            font-weight: 600;
            border-bottom: 2px dotted #26d0ce;
            transition: color 0.3s, background 0.3s;
        }
        .content-link:hover {
            color: #FFD700;
            background: rgba(26, 41, 128, 0.05);
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .functional-section {
            background: #f1f8ff;
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem 0;
            border: 1px solid #cce7ff;
        }
        .section-title {
            font-size: 1.5rem;
            color: #1a2980;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title i {
            color: #26d0ce;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #26d0ce;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: linear-gradient(to right, #26d0ce, #1a2980);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: opacity 0.3s;
        }
        .search-form button:hover {
            opacity: 0.9;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #26d0ce;
            outline: none;
        }
        .submit-btn {
            background: linear-gradient(to right, #1a2980, #26d0ce);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(26, 41, 128, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #FFD700;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #FFD700;
            margin-bottom: 1.2rem;
            font-size: 1.5rem;
        }
        .footer-links a {
            color: #bdc3c7;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s, padding-left 0.3s;
        }
        .footer-links a:hover {
            color: #FFD700;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: #3498db;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        .update-time {
            background: #fff3cd;
            color: #856404;
            padding: 0.8rem;
            border-radius: 6px;
            text-align: center;
            margin: 1.5rem 0;
            font-weight: bold;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .header-container { padding: 1rem; }
            .container { padding: 0 1rem; }
            article { padding: 1.8rem; }
        }
        @media (max-width: 768px) {
            body { padding-top: 70px; }
            .hamburger { display: block; }
            nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background: #1a2980;
                width: 100%;
                text-align: center;
                transition: 0.5s;
                padding: 1rem 0;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            nav ul.active {
                left: 0;
            }
            nav a {
                display: block;
                padding: 1rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .logo a { font-size: 1.8rem; }
            .search-form { flex-direction: column; }
            .search-form input { border-radius: 8px; margin-bottom: 0.5rem; }
            .search-form button { border-radius: 8px; padding: 0.9rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article {
            animation: fadeIn 0.8s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }
        .pulse:hover {
            animation: none;
        }