* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        html { scroll-behavior: smooth; }
        body { background-color: #0f1419; color: #e0e0e0; line-height: 1.7; overflow-x: hidden; }
        .site-header { background: linear-gradient(135deg, #1a1f2e 0%, #0c0f17 100%); padding: 1rem 2rem; border-bottom: 2px solid #2a9fd6; position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; max-width: 1400px; margin: 0 auto; }
        .my-logo a { font-size: 2.2rem; font-weight: 800; background: linear-gradient(90deg, #2a9fd6, #00b4ff); -webkit-background-clip: text; background-clip: text; color: transparent; text-decoration: none; letter-spacing: 1px; }
        .my-logo a:hover { opacity: 0.9; }
        .search-form { display: flex; background: rgba(255,255,255,0.1); border-radius: 30px; padding: 0.3rem; }
        .search-input { background: transparent; border: none; color: white; padding: 0.5rem 1rem; width: 250px; outline: none; }
        .search-btn { background: #2a9fd6; border: none; color: white; border-radius: 50%; width: 40px; height: 40px; cursor: pointer; transition: background 0.3s; }
        .search-btn:hover { background: #00b4ff; }
        .main-nav { display: flex; gap: 2rem; align-items: center; }
        .nav-list { display: flex; list-style: none; gap: 1.8rem; }
        .nav-list a { color: #b0b7c3; text-decoration: none; font-weight: 600; padding: 0.5rem 0; position: relative; transition: color 0.3s; }
        .nav-list a:hover, .nav-list a.active { color: #2a9fd6; }
        .nav-list a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: #2a9fd6; transition: width 0.3s; }
        .nav-list a:hover::after { width: 100%; }
        .hamburger { display: none; font-size: 1.8rem; color: #2a9fd6; background: none; border: none; cursor: pointer; }
        .breadcrumb { background: #161b26; padding: 1rem 2rem; font-size: 0.9rem; max-width: 1400px; margin: 0 auto; }
        .breadcrumb a { color: #2a9fd6; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #8a8f9c; }
        .main-container { max-width: 1400px; margin: 2rem auto; padding: 0 2rem; display: grid; grid-template-columns: 1fr 300px; gap: 3rem; }
        article { background: rgba(22, 27, 38, 0.8); border-radius: 12px; padding: 2.5rem; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
        h1 { color: #2a9fd6; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; border-left: 5px solid #00b4ff; padding-left: 1rem; }
        h2 { color: #4ecdc4; margin: 2.5rem 0 1.2rem; padding-bottom: 0.5rem; border-bottom: 2px solid #2a3b52; font-size: 2rem; }
        h3 { color: #6ab7ff; margin: 2rem 0 1rem; font-size: 1.6rem; }
        h4 { color: #8fc7ff; margin: 1.5rem 0 0.8rem; font-size: 1.3rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        .lead { font-size: 1.3rem; color: #b0d0ff; background: rgba(42, 159, 214, 0.1); padding: 1.5rem; border-radius: 8px; border-left: 4px solid #2a9fd6; }
        b, strong { color: #ffcc5c; }
        em { color: #a3d9ff; }
        .highlight-box { background: linear-gradient(135deg, #1c2b45, #131b2d); border: 1px solid #2a9fd6; border-radius: 10px; padding: 1.8rem; margin: 2rem 0; box-shadow: inset 0 0 15px rgba(42, 159, 214, 0.2); }
        .info-note { background: rgba(78, 205, 196, 0.1); border-left: 4px solid #4ecdc4; padding: 1rem; border-radius: 0 8px 8px 0; margin: 1.5rem 0; }
        a.content-link { color: #4ecdc4; text-decoration: none; border-bottom: 1px dotted #4ecdc4; padding-bottom: 1px; }
        a.content-link:hover { color: #00ffea; border-bottom: 1px solid #00ffea; }
        .article-image { width: 100%; border-radius: 10px; margin: 2rem 0; border: 2px solid #2a3b52; transition: transform 0.5s, box-shadow 0.5s; }
        .article-image:hover { transform: scale(1.01); box-shadow: 0 15px 30px rgba(0, 180, 255, 0.3); }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.7rem; }
        .interactive-section { background: #1a2230; padding: 2rem; border-radius: 10px; margin: 3rem 0; }
        .rating-section, .comment-section { margin-bottom: 2.5rem; }
        .rating-title, .comment-title { color: #ffcc5c; margin-bottom: 1rem; font-size: 1.5rem; }
        .star-rating { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
        .star { font-size: 2rem; color: #555; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #ffcc00; }
        .comment-form textarea, .comment-form input { width: 100%; padding: 1rem; margin-bottom: 1rem; background: #252f3f; border: 1px solid #3a4a65; border-radius: 6px; color: white; }
        .comment-form button, .rating-btn { background: linear-gradient(90deg, #2a9fd6, #00b4ff); color: white; border: none; padding: 0.8rem 2rem; border-radius: 30px; font-weight: bold; cursor: pointer; transition: all 0.3s; }
        .comment-form button:hover, .rating-btn:hover { background: linear-gradient(90deg, #00b4ff, #2a9fd6); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0, 180, 255, 0.4); }
        aside { background: #161b26; border-radius: 10px; padding: 2rem; align-self: start; position: sticky; top: 120px; }
        .sidebar-title { color: #4ecdc4; margin-bottom: 1.5rem; font-size: 1.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid #2a3b52; }
        .sidebar-links { list-style: none; }
        .sidebar-links li { margin-bottom: 1rem; }
        .sidebar-links a { color: #b0b7c3; text-decoration: none; display: block; padding: 0.8rem; background: rgba(255,255,255,0.05); border-radius: 6px; transition: all 0.3s; }
        .sidebar-links a:hover { background: rgba(42, 159, 214, 0.2); color: #2a9fd6; transform: translateX(5px); }
        .update-time { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #2a3b52; color: #8a8f9c; font-size: 0.9rem; }
        footer { background: #0c0f17; padding: 3rem 2rem 1.5rem; margin-top: 4rem; border-top: 2px solid #2a9fd6; }
        .footer-container { max-width: 1400px; margin: 0 auto; }
        .friend-links { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid #2a3b52; }
        friend-link { display: inline-block; }
        .friend-link a { color: #8fc7ff; text-decoration: none; padding: 0.5rem 1rem; border: 1px solid #3a4a65; border-radius: 4px; transition: all 0.3s; }
        .friend-link a:hover { background: #2a9fd6; color: white; border-color: #2a9fd6; }
        .copyright { text-align: center; color: #8a8f9c; font-size: 0.9rem; }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; gap: 2rem; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .main-nav { order: 3; width: 100%; margin-top: 1rem; display: none; }
            .main-nav.active { display: block; }
            .nav-list { flex-direction: column; gap: 0; }
            .nav-list li { width: 100%; border-bottom: 1px solid #2a3b52; }
            .nav-list a { display: block; padding: 1rem; }
            .hamburger { display: block; }
            .search-input { width: 200px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .main-container { padding: 0 1rem; }
            article { padding: 1.5rem; }
            .friend-links { justify-content: center; }
        }
        @media (max-width: 480px) {
            .site-header, .breadcrumb { padding: 1rem; }
            .search-input { width: 150px; }
            h1 { font-size: 1.8rem; }
            .lead { font-size: 1.1rem; padding: 1rem; }
        }