* { 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: #f9f9f9;
            background-image: linear-gradient(to bottom, #f0f4ff 0%, #ffffff 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2a5db0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e53935; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section { margin-bottom: 3rem; }
        .site-header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 30%, #3949ab 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-content {
            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, #ffd700, #ffecb3);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1.5px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            padding: 5px 0;
        }
        .my-logo a { background: transparent; }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 8px 5px;
            border-radius: 4px;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
            color: #ffd700;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 12px 20px;
            border-radius: 0 0 8px 8px;
            font-size: 0.9rem;
            margin-top: 5px;
        }
        .breadcrumb a { color: #3949ab; }
        .breadcrumb span { color: #666; }
        .hero {
            background: url('https://images.unsplash.com/photo-1620332376073-459d0f57b5b3?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 4rem 2rem;
            border-radius: 0 0 20px 20px;
            position: relative;
            margin-bottom: 2.5rem;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(26, 35, 126, 0.75);
            border-radius: 0 0 20px 20px;
        }
        .hero-content { position: relative; z-index: 1; }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.6);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        .search-form {
            max-width: 600px;
            margin: 2rem auto 0;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
        }
        .search-button {
            background: linear-gradient(to right, #ff9800, #ff5722);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-button:hover { background: linear-gradient(to right, #f57c00, #e64a19); }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
            flex-grow: 1;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #1a237e;
            border-bottom: 3px solid #ffd700;
            padding-bottom: 10px;
            margin-bottom: 1.5rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 12px;
            padding-left: 1.2rem;
            position: relative;
        }
        .sidebar li::before {
            content: '➔';
            position: absolute;
            left: 0;
            color: #ff9800;
        }
        h1 { color: #1a237e; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 {
            color: #283593;
            font-size: 2.1rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #e8eaf6;
        }
        h3 { color: #3949ab; font-size: 1.6rem; margin: 2rem 0 1rem; }
        h4 { color: #5c6bc0; font-size: 1.3rem; margin: 1.8rem 0 0.8rem; }
        p, li { margin-bottom: 1.2rem; font-size: 1.08rem; }
        .intro { font-size: 1.2rem; color: #555; font-weight: 500; padding: 15px; background: #f3f5ff; border-left: 5px solid #3949ab; border-radius: 0 8px 8px 0; }
        .highlight {
            background: linear-gradient(120deg, #e1f5fe 0%, #fff8e1 100%);
            padding: 1.8rem;
            border-radius: 10px;
            border-left: 5px solid #ff9800;
            margin: 1.8rem 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            border-radius: 10px;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            text-align: center;
            border-top: 5px solid #3949ab;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.1);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1a237e;
            display: block;
            line-height: 1;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
            border: 8px solid white;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #ffd700;
            padding-left: 1.5rem;
            margin: 2rem 0;
            background: #fffde7;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid #e0e0e0;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .star-rating .star:hover,
        .star-rating .star:hover ~ .star { color: #ffd700; }
        .star-rating .star.active { color: #ff9800; }
        .form-group { display: flex; flex-direction: column; gap: 8px; }
        label { font-weight: 600; color: #444; }
        input, textarea, select {
            padding: 14px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            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);
        }
        .submit-btn {
            background: linear-gradient(to right, #1a237e, #3949ab);
            color: white;
            border: none;
            padding: 16px 28px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #283593, #5c6bc0);
            transform: scale(1.03);
        }
        .site-footer {
            background: #1a237e;
            color: #e3f2fd;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            color: #ffd700;
            border-bottom: 2px solid #3949ab;
            padding-bottom: 10px;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            padding: 8px 0;
            color: #bbdefb;
            border-bottom: 1px dashed #3949ab;
        }
        friend-link:last-child { border-bottom: none; }
        friend-link:hover { color: #ffd700; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            color: #9fa8da;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .header-content { flex-direction: column; align-items: flex-start; }
            .nav-toggle { display: block; }
            .main-nav { width: 100%; max-height: 0; overflow: hidden; transition: max-height 0.5s ease; }
            .main-nav.active { max-height: 500px; margin-top: 1rem; }
            .main-nav ul { flex-direction: column; gap: 0; }
            .main-nav li { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .main-nav a { padding: 15px; justify-content: center; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1.1rem; }
            .article-content, .sidebar { padding: 1.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .main-content { gap: 1.5rem; }
        }