* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 1400px;
            margin: 0 auto;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.05);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #0066cc; text-decoration: none; transition: color 0.3s, transform 0.2s; }
        a:hover { color: #ff6600; transform: translateY(-2px); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 2em; margin: 1em 0; }
        li { margin-bottom: 0.5em; }
        .container { width: 95%; 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(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            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;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Black', Impact, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #4fc3f7, #00e5ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
            letter-spacing: -0.5px;
        }
        .my-logo:hover { transform: scale(1.03); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            font-size: 1.05rem;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #c5cae9;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding-left: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 0.7rem;
            color: #5c6bc0;
        }
        .breadcrumb a { color: #3949ab; }
        main {
            flex: 1;
            padding: 2.5rem 0;
            background-color: #fff;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 3px solid #e0e0e0;
        }
        h1 {
            font-size: 3rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 0.4rem; color: #3949ab; }
        .featured-image {
            width: 80%;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s;
        }
        .featured-image:hover {
            transform: scale(1.008);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: #555;
            padding: 0.8rem;
            background-color: #f9f9f9;
            border-top: 1px solid #eee;
        }
        h2 {
            font-size: 2.2rem;
            color: #283593;
            margin: 2.8rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #c5cae9;
        }
        h3 {
            font-size: 1.7rem;
            color: #3949ab;
            margin: 2.2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #5c6bc0;
            margin: 1.8rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background-color: #f3f5ff;
            padding: 1.5rem;
            border-left: 5px solid #3949ab;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #ffb300;
            margin: 1.8rem 0;
        }
        .stats-box {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 1.8rem;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.05);
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #7986cb;
            padding-left: 1.5rem;
            margin: 2rem 1rem;
            font-size: 1.1rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 1.2rem;
            transition: all 0.3s;
            box-shadow: 0 3px 6px rgba(0,0,0,0.05);
        }
        .link-card:hover {
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
            border-color: #3949ab;
            transform: translateY(-5px);
        }
        .link-card a {
            font-weight: 600;
            display: block;
            margin-bottom: 0.5rem;
        }
        .interactive-module {
            background-color: #f9f9f9;
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid #ddd;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 1rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
        }
        .module-title i { font-size: 1.8rem; }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-group {
            flex: 1;
            min-width: 250px;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #bdbdbd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3949ab;
            box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #3949ab, #5c6bc0);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #303f9f, #3949ab);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffb300; }
        .site-footer {
            background: linear-gradient(90deg, #1a237e, #283593);
            color: #e3f2fd;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: #bbdefb;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #c5cae9;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .footer-links a:hover { color: #4fc3f7; }
        friend-link {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin: 0.3rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #90a4ae;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .featured-image { width: 90%; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #283593;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                border-radius: 0 0 8px 8px;
            }
            .main-nav.active ul {
                display: flex;
            }
            .header-container { padding: 0 15px; }
            .my-logo { font-size: 1.8rem; }
            .link-list { grid-template-columns: 1fr; }
            .interactive-module { padding: 1.5rem; }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .container { padding: 0 15px; }
            .article-meta { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
            .search-form, .comment-form, .rating-form { flex-direction: column; }
            .form-group { min-width: 100%; }
        }