* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a6bc2;
            --secondary-color: #ffcc00;
            --dark-bg: #0f1a2e;
            --light-bg: #f5f7fa;
            --text-primary: #2c3e50;
            --text-secondary: #7f8c8d;
            --accent-color: #e74c3c;
            --border-color: #dce1e6;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary-color), #2a80d6);
            color: white;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(135deg, #155a9f, var(--primary-color));
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            color: white;
        }
        .section {
            padding: 60px 0;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
        }
        .nav-desktop li {
            margin-left: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary-color);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary-color);
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            background-color: white;
            padding: 20px;
            box-shadow: inset 0 5px 10px rgba(0,0,0,0.05);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
        }
        .nav-mobile li {
            margin-bottom: 15px;
        }
        .nav-mobile a {
            display: block;
            padding: 12px 15px;
            background-color: var(--light-bg);
            border-radius: 8px;
            font-weight: 600;
        }
        .breadcrumb {
            background-color: #e8eff7;
            padding: 15px 0;
            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: var(--text-secondary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            max-width: 600px;
            margin: 30px auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex-grow: 1;
            padding: 16px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #155a9f;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 30px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background-color: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .article-header {
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 25px;
            margin-bottom: 35px;
        }
        .article-title {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--dark-bg);
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
        }
        .article-meta i {
            margin-right: 8px;
        }
        .article-content h2 {
            font-size: 1.8rem;
            margin: 45px 0 20px;
            color: var(--primary-color);
            padding-bottom: 10px;
            border-bottom: 1px dashed var(--border-color);
        }
        .article-content h3 {
            font-size: 1.4rem;
            margin: 35px 0 15px;
            color: var(--text-primary);
        }
        .article-content p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.05rem;
        }
        .article-content strong {
            color: var(--accent-color);
            font-weight: 700;
        }
        .article-content em {
            background-color: #fff9e6;
            font-style: italic;
            padding: 0 3px;
        }
        .article-content ul, .article-content ol {
            margin-left: 25px;
            margin-bottom: 1.5em;
        }
        .article-content li {
            margin-bottom: 0.7em;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e8f4ff, #d4e7ff);
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .inline-img {
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 800px;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-secondary);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .related-links {
            margin: 40px 0;
            padding: 25px;
            background-color: #f8fafc;
            border-radius: 10px;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 10px;
            padding-left: 20px;
            position: relative;
        }
        .related-links li::before {
            content: '🔗';
            position: absolute;
            left: 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary-color);
            color: var(--dark-bg);
        }
        .popular-list, .guide-list {
            list-style: none;
        }
        .popular-list li, .guide-list li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        .popular-list a, .guide-list a {
            display: block;
            font-weight: 600;
        }
        .popular-list a:hover, .guide-list a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .interaction-section {
            margin-top: 50px;
            background-color: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .section-title {
            font-size: 1.8rem;
            margin-bottom: 30px;
            color: var(--primary-color);
        }
        .rating-widget {
            text-align: center;
            margin-bottom: 40px;
        }
        .stars {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: #ddd;
            cursor: pointer;
        }
        .stars .star {
            display: inline-block;
            transition: var(--transition);
        }
        .stars .star:hover,
        .stars .star.active {
            color: var(--secondary-color);
        }
        .rating-text {
            font-size: 1.2rem;
            margin-top: 10px;
        }
        .comment-form, .rating-form {
            margin-top: 20px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 107, 194, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .form-row {
                flex-direction: column;
                gap: 0;
            }
        }
        .footer-links {
            background-color: var(--dark-bg);
            padding: 50px 0;
            margin-top: 60px;
        }
        .web-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.05);
            margin: 10px;
            padding: 12px 25px;
            border-radius: 30px;
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        .web-link a {
            color: #ecf0f1;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }
        .links-container {
            text-align: center;
        }
        .site-footer {
            background-color: #0a1423;
            color: #bdc3c7;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .copyright {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            width: 100%;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .article {
                padding: 25px;
            }
            .article-title {
                font-size: 1.8rem;
            }
            .interaction-section {
                padding: 25px;
            }
            .section {
                padding: 40px 0;
            }
        }