* {
            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: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            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;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(45deg, #3498db, #9b59b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo a:hover {
            opacity: 0.9;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #3498db;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #16213e;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: #ecf0f1;
            padding: 1rem;
            border-bottom: 1px solid #2c3e50;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: #fff;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
        }
        .sidebar h3 {
            color: #2c3e50;
            border-left: 5px solid #e74c3c;
            padding-left: 12px;
            margin-bottom: 1.5rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            padding: 0.8rem 0;
            border-bottom: 1px dashed #eee;
        }
        .sidebar li:last-child {
            border-bottom: none;
        }
        h1 {
            color: #2c3e50;
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #3498db;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            color: #34495e;
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #9b59b6;
        }
        h3 {
            color: #2c3e50;
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.25rem;
            color: #5a6268;
            font-weight: 300;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-left: 5px solid #f39c12;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .key-term {
            font-weight: 700;
            color: #c0392b;
        }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            border: 5px solid #fff;
            outline: 1px solid #eee;
        }
        .search-module, .comment-module, .rating-module {
            background: #f8f9fa;
            padding: 1.8rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border: 1px solid #e9ecef;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #2c3e50;
            margin-bottom: 1.2rem;
            font-size: 1.5rem;
        }
        .module-title i {
            color: #3498db;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(45deg, #3498db, #2980b9);
            color: white;
            padding: 0.9rem 2rem;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11);
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1);
            background: linear-gradient(45deg, #2980b9, #3498db);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f39c12;
        }
        .footer-links {
            background: #2c3e50;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            display: inline-block;
            background: #34495e;
            color: #ecf0f1;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: #3498db;
            color: white;
            transform: scale(1.05);
        }
        .links-container {
            text-align: center;
        }
        .copyright {
            background: #1a1a2e;
            color: #95a5a6;
            text-align: center;
            padding: 2rem 0;
            font-size: 0.9rem;
        }
        .copyright a {
            color: #3498db;
        }