* { 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: #f8f9fa;
            background-image: linear-gradient(180deg, #e6f7ff 0%, #f0f9ff 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #1a73e8; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #0d47a1; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .site-header {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            padding: 1rem 0;
            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;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFEB3B;
            text-shadow: 3px 3px 0 #FF5722, 6px 6px 0 rgba(0,0,0,0.2);
            letter-spacing: 1px;
        }
        .my-logo:hover { text-decoration: none; color: #FFF59D; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e3f2fd;
            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: #666;
        }
        .breadcrumb a { color: #555; }
        main { flex: 1; padding: 2rem 0; }
        .article-header { margin-bottom: 2.5rem; text-align: center; }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .article-hero {
            margin: 2rem auto;
            max-width: 800px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h2 {
            color: #0d47a1;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #FFEB3B;
        }
        .article-content h3 {
            color: #1a237e;
            margin: 2rem 0 1rem;
        }
        .article-content h4 {
            color: #3949ab;
            margin: 1.5rem 0 0.8rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content strong {
            color: #d32f2f;
            font-weight: 700;
        }
        .highlight-box {
            background: #e8f5e9;
            border-left: 5px solid #4caf50;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .content-link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .content-link-item {
            background: #f5f5f5;
            padding: 1rem;
            border-radius: 8px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .content-link-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 7px 14px rgba(0,0,0,0.1);
            background: #e3f2fd;
        }
        .interactive-section {
            margin: 3rem 0;
            padding: 2rem;
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            border-radius: 12px;
            border: 1px solid #ddd;
        }
        .search-box, .comment-box, .rating-box {
            margin-bottom: 2.5rem;
        }
        .feature-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #5e35b1;
            margin-bottom: 1rem;
        }
        .feature-title i { font-size: 1.5rem; }
        form {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6a11cb;
        }
        button, .btn {
            background: linear-gradient(to right, #6a11cb, #2575fc);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #5a0cb9, #1c68e8);
            transform: scale(1.03);
            box-shadow: 0 5px 15px rgba(106, 17, 203, 0.4);
            text-decoration: none;
        }
        textarea { width: 100%; min-height: 120px; resize: vertical; }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #FFD700; }
        .rating-result {
            margin-top: 1rem;
            font-weight: bold;
            color: #5e35b1;
        }
        .site-footer {
            background: #1a237e;
            color: #e8eaf6;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #FFEB3B;
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        friend-link {
            display: block;
            padding: 0.6rem 1rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #9fa8da;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 400px; margin-top: 1rem; }
            .main-nav ul { flex-direction: column; gap: 0; }
            .main-nav li { width: 100%; }
            .main-nav a { display: block; padding: 1rem; }
            .article-header h1 { font-size: 2rem; }
            .article-content { padding: 1.5rem; }
            .content-link-list { grid-template-columns: 1fr; }
        }