* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        html { scroll-behavior: smooth; }
        body { background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%); color: #333; line-height: 1.7; min-height: 100vh; display: flex; flex-direction: column; }
        .site-header { background: #2c3e50; color: #ecf0f1; padding: 1rem 2rem; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-container { max-width: 1400px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        .my-logo a { font-size: 2.2rem; font-weight: 800; color: #1abc9c; text-decoration: none; display: flex; align-items: center; gap: 10px; }
        .my-logo a:hover { color: #16a085; transform: scale(1.02); transition: transform 0.3s; }
        .my-logo i { font-size: 2.5rem; }
        .main-nav { display: flex; }
        .nav-list { display: flex; list-style: none; gap: 1.8rem; }
        .nav-list a { color: #bdc3c7; text-decoration: none; font-weight: 600; padding: 0.5rem 0; position: relative; }
        .nav-list a:hover, .nav-list a.active { color: #1abc9c; }
        .nav-list a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 3px; background: #1abc9c; transition: width 0.3s; }
        .nav-list a:hover::after { width: 100%; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: #ecf0f1; cursor: pointer; }
        .breadcrumb { background: #34495e; padding: 0.8rem 2rem; font-size: 0.9rem; color: #95a5a6; }
        .breadcrumb a { color: #1abc9c; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { flex: 1; max-width: 1400px; margin: 2rem auto; padding: 0 2rem; width: 100%; }
        article { background: white; border-radius: 20px; padding: 3rem; box-shadow: 0 10px 30px rgba(0,0,0,0.08); margin-bottom: 2rem; }
        h1 { color: #2c3e50; font-size: 3.2rem; margin-bottom: 1.5rem; border-left: 6px solid #1abc9c; padding-left: 1.5rem; }
        h2 { color: #3498db; font-size: 2.4rem; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #bdc3c7; }
        h3 { color: #2980b9; font-size: 1.8rem; margin: 2rem 0 1rem; }
        h4 { color: #16a085; font-size: 1.4rem; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; color: #2c3e50; font-weight: 500; padding: 1rem; background: #f8f9fa; border-radius: 10px; border-left: 4px solid #3498db; }
        .highlight { background: linear-gradient(120deg, #a1eafb 0%, #fda085 100%); padding: 0.2rem 0.5rem; border-radius: 5px; font-weight: 600; }
        .emoji { font-size: 1.2em; }
        .featured-image { width: 100%; max-height: 500px; object-fit: cover; border-radius: 15px; margin: 2rem 0; box-shadow: 0 8px 20px rgba(0,0,0,0.15); transition: transform 0.5s; }
        .featured-image:hover { transform: translateY(-5px); }
        .img-caption { text-align: center; font-style: italic; color: #7f8c8d; margin-top: -1.5rem; margin-bottom: 2rem; }
        .content-link { color: #e74c3c; text-decoration: none; font-weight: 600; border-bottom: 1px dotted #e74c3c; }
        .content-link:hover { color: #c0392b; border-bottom-style: solid; }
        .interactive-box { background: #f8f9fa; border-radius: 15px; padding: 2rem; margin: 3rem 0; border: 1px solid #e9ecef; }
        .interactive-box h3 { margin-top: 0; }
        .form-group { margin-bottom: 1.2rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #2c3e50; }
        input, textarea, select { width: 100%; padding: 0.8rem; border: 2px solid #bdc3c7; border-radius: 8px; font-size: 1rem; transition: border 0.3s; }
        input:focus, textarea:focus, select:focus { border-color: #1abc9c; outline: none; }
        textarea { min-height: 120px; resize: vertical; }
        .btn { background: linear-gradient(to right, #1abc9c, #16a085); color: white; border: none; padding: 0.9rem 2rem; border-radius: 50px; font-size: 1.1rem; font-weight: 600; cursor: pointer; transition: all 0.3s; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
        .btn:hover { background: linear-gradient(to right, #16a085, #1abc9c); transform: translateY(-3px); box-shadow: 0 7px 15px rgba(26, 188, 156, 0.3); }
        .stars { display: flex; gap: 5px; margin: 1rem 0; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #f39c12; }
        footer { background: #2c3e50; color: #ecf0f1; padding: 3rem 2rem 1.5rem; margin-top: auto; }
        .footer-container { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2.5rem; }
        .footer-section h4 { color: #1abc9c; margin-bottom: 1.2rem; font-size: 1.3rem; }
        .footer-section ul { list-style: none; }
        .footer-section ul li { margin-bottom: 0.7rem; }
        .footer-section a { color: #bdc3c7; text-decoration: none; transition: color 0.3s; }
        .footer-section a:hover { color: #1abc9c; }
        friend-link { display: block; padding: 0.8rem; background: #34495e; border-radius: 8px; margin-bottom: 0.7rem; border-left: 4px solid #1abc9c; }
        .copyright { text-align: center; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid #34495e; color: #95a5a6; font-size: 0.9rem; }
        @media (max-width: 992px) {
            h1 { font-size: 2.6rem; }
            h2 { font-size: 2rem; }
            .header-container { flex-direction: column; align-items: flex-start; gap: 1rem; }
            .main-nav { width: 100%; }
            .nav-list { flex-direction: column; gap: 0; width: 100%; display: none; }
            .nav-list.active { display: flex; }
            .nav-list li { width: 100%; border-bottom: 1px solid #34495e; }
            .nav-list a { display: block; padding: 1rem; }
            .hamburger { display: block; align-self: flex-end; margin-top: -3.5rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            main { padding: 0 1rem; }
            article { padding: 1.5rem; }
            .featured-image { max-height: 300px; }
            .footer-container { grid-template-columns: 1fr; }
        }