* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            background-image: linear-gradient(180deg, #f0f4ff 0%, #ffffff 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #2c3e50, #1a2530);
            color: #fff;
            padding: 1rem 5%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #4CAF50;
            text-decoration: none;
            font-family: 'Georgia', serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #66BB6A;
        }
        .my-logo span { color: #FFD700; }
        .search-form {
            flex-grow: 1;
            max-width: 500px;
            margin: 0 2rem;
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1.2rem;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            background: rgba(255,255,255,0.95);
        }
        .search-button {
            background: #4CAF50;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-button:hover { background: #388E3C; }
        .nav-toggle { display: none; }
        .nav-toggle-label {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #fff;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(76, 175, 80, 0.7);
            color: white;
            transform: translateY(-2px);
        }
        .breadcrumb {
            background: #e8f5e9;
            padding: 0.8rem 5%;
            font-size: 0.9rem;
            border-bottom: 1px solid #c8e6c9;
        }
        .breadcrumb a {
            color: #2e7d32;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #666; }
        .main-content {
            flex: 1;
            width: 100%;
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 5%;
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        h1 {
            color: #2c3e50;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #4CAF50;
            padding-bottom: 0.7rem;
        }
        h2 {
            color: #2e7d32;
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #FFD700;
        }
        h3 {
            color: #388E3C;
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #555;
            font-size: 1.2rem;
            margin: 1.5rem 0 0.8rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #2c3e50;
            background: #f1f8e9;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #4CAF50;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fffde7;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px dashed #ffd54f;
            margin: 2rem 0;
        }
        .quote {
            font-style: italic;
            color: #5a5a5a;
            border-left: 4px solid #81c784;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .author { text-align: right; font-weight: bold; color: #2e7d32; margin-top: 0.5rem; }
        .content-link {
            color: #1e88e5;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted #1e88e5;
            transition: color 0.3s;
        }
        .content-link:hover {
            color: #0d47a1;
            border-bottom-style: solid;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #f3e5f5);
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        .stat-card:hover { transform: translateY(-5px); }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #2e7d32;
            display: block;
        }
        .stat-label { font-size: 1rem; color: #555; }
        .featured-image {
            width: 100%;
            max-width: 800px;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.5rem;
            background: #f5f5f5;
        }
        .interaction-section {
            background: #f8f9fa;
            padding: 2.5rem;
            border-radius: 12px;
            margin-top: 3rem;
            border: 1px solid #e0e0e0;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4CAF50;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .star-rating .star:hover,
        .star-rating .star.active { color: #FFD700; }
        .submit-btn {
            background: linear-gradient(to right, #4CAF50, #2e7d32);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            display: block;
            margin: 0 auto;
        }
        .submit-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 12px rgba(46, 125, 50, 0.3);
        }
        .related-links {
            background: #e8f5e9;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .related-links h3 { color: #1b5e20; margin-top: 0; }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .links-grid a {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            text-decoration: none;
            color: #2c3e50;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            transition: all 0.3s;
            border-left: 4px solid #81c784;
        }
        .links-grid a:hover {
            background: #4CAF50;
            color: white;
            transform: translateX(5px);
        }
        .links-grid i { font-size: 1.2rem; }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 5% 1.5rem;
            margin-top: auto;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #FFD700;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #4CAF50;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6278;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        .update-time {
            background: #1a2530;
            color: #FFD700;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            display: inline-block;
            margin-top: 1rem;
            font-family: monospace;
        }
        @media (max-width: 992px) {
            .header-container { flex-direction: column; align-items: stretch; }
            .search-form { max-width: 100%; margin: 1rem 0; order: 3; }
            .nav-toggle-label { display: block; order: 2; align-self: flex-end; margin-top: -2.5rem; }
            .main-nav { order: 4; width: 100%; display: none; }
            .nav-toggle:checked ~ .main-nav { display: block; }
            .main-nav ul { flex-direction: column; gap: 0; }
            .main-nav li { border-bottom: 1px solid #4a6278; }
            .main-nav a { display: block; padding: 1rem; }
            article { padding: 2rem; }
            h1 { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            .main-content { padding: 0 3%; }
            article { padding: 1.5rem; }
            .form-grid { grid-template-columns: 1fr; }
            .footer-container { grid-template-columns: 1fr; text-align: center; }
            .links-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.6rem; }
            .lead { font-size: 1.1rem; padding: 1rem; }
            .interaction-section { padding: 1.5rem; }
        }
        @media print {
            .site-header, .breadcrumb, .interaction-section, .site-footer { display: none; }
            body { background: white; color: black; }
            article { box-shadow: none; padding: 0; }
            a { color: black; text-decoration: underline; }
        }