* { 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%);
            min-height: 100vh;
            padding-bottom: 40px;
        }
        a { color: #0066cc; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 95%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 15px;
        }
        .site-header {
            background: linear-gradient(90deg, #0c2461 0%, #1e3799 50%, #4a69bd 100%);
            color: white;
            padding: 1.2rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(to right, #f6d365, #fda085);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
        }
        .my-logo:hover { text-decoration: none; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: #e0e7ff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0.3rem;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: #f6d365;
            border-bottom-color: #f6d365;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #1e3799;
            padding: 1rem;
            margin-top: 1rem;
            border-radius: 8px;
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            color: #e0e7ff;
            padding: 0.8rem;
            border-bottom: 1px solid #4a69bd;
        }
        .mobile-nav a:last-child { border-bottom: none; }
        .breadcrumb {
            background-color: #e8f4fc;
            padding: 0.8rem 1rem;
            border-radius: 6px;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #4a69bd; }
        .breadcrumb span { color: #666; }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 700px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #4a69bd;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: linear-gradient(to right, #4a69bd, #1e3799);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 0 50px 50px 0;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: linear-gradient(to right, #1e3799, #0c2461);
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .article-body {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #0c2461;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #e63946;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #1e3799;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #f6d365;
        }
        h3 {
            font-size: 1.6rem;
            color: #4a69bd;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background-color: #f8f9fa;
            padding: 1.2rem;
            border-left: 4px solid #4a69bd;
            border-radius: 4px;
            margin-bottom: 2rem;
        }
        strong { color: #0c2461; }
        em { color: #666; }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            border: 5px solid white;
        }
        .content-link {
            background-color: #e8f4fc;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .content-link:hover {
            background-color: #d1e7ff;
            text-decoration: none;
        }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.7rem; }
        .info-box {
            background: linear-gradient(135deg, #e3f2fd, #bbdefb);
            border-left: 5px solid #2196f3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 8px;
        }
        .warning-box {
            background: linear-gradient(135deg, #ffebee, #ffcdd2);
            border-left: 5px solid #f44336;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 8px;
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
            border: 1px solid #dee2e6;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffc107;
            margin-bottom: 1rem;
        }
        .star-rating i { cursor: pointer; transition: transform 0.2s; }
        .star-rating i:hover { transform: scale(1.2); }
        textarea, input[type="text"], input[type="email"] {
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
        }
        .submit-btn {
            background: linear-gradient(to right, #4CAF50, #2E7D32);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #2E7D32, #1B5E20);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .site-footer {
            background: #0c2461;
            color: #e0e7ff;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
            border-top: 5px solid #f6d365;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-links h3 { color: #fda085; margin-bottom: 1.2rem; }
        .footer-links ul { list-style: none; margin: 0; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #bbdefb; }
        .friend-links {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.6rem 1.2rem;
            margin: 0.5rem;
            border-radius: 50px;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(253, 160, 133, 0.3);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #1e3799;
            font-size: 0.95rem;
            color: #a5b4cb;
        }
        @media (max-width: 1024px) {
            .main-content { grid-template-columns: 1fr; }
            .sidebar { position: static; }
        }
        @media (max-width: 768px) {
            .main-nav ul { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .header-content { flex-wrap: wrap; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: 50px; margin-bottom: 1rem; }
            .search-btn { border-radius: 50px; }
            .article-body { padding: 1.5rem; }
        }