* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8fafc;
            color: #334155;
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #3b82f6;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4ed8;
        }
        ul, ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #3b82f6, #1d4ed8);
            color: white;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(59, 130, 246, 0.25);
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 8px rgba(59, 130, 246, 0.35);
            background: linear-gradient(to right, #1d4ed8, #1e40af);
        }
        .site-header {
            background-color: #1e293b;
            color: white;
            padding: 1rem 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;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: #60a5fa;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #cbd5e1;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: #60a5fa;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #60a5fa;
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background-color: #1e293b;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            color: #cbd5e1;
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
        }
        .mobile-nav a:hover {
            background-color: #334155;
            color: #60a5fa;
        }
        .breadcrumb {
            background-color: #f1f5f9;
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            padding-left: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #64748b;
        }
        .breadcrumb a {
            color: #64748b;
        }
        .breadcrumb a:hover {
            color: #3b82f6;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.05);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: #1e293b;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            gap: 1.5rem;
            color: #64748b;
            font-size: 0.9rem;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .article-body h2 {
            font-size: 1.8rem;
            color: #1e293b;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3b82f6;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #334155;
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #475569;
            margin: 1.5rem 0 0.75rem;
        }
        .article-body p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .article-body blockquote {
            border-left: 4px solid #3b82f6;
            background-color: #f0f9ff;
            padding: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        .article-body .highlight {
            background-color: #fef3c7;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            border-left: 4px solid #f59e0b;
        }
        .article-body .highlight strong {
            color: #92400e;
        }
        .feature-img {
            margin: 2rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .feature-img figcaption {
            text-align: center;
            font-style: italic;
            color: #64748b;
            padding: 0.5rem;
            background-color: #f8fafc;
        }
        .related-links {
            background-color: #f8fafc;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 10px;
        }
        .related-links li {
            margin: 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.05);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: #1e293b;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #10b981;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px;
            border: 1px solid #cbd5e1;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #10b981;
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #0da271;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
        }
        .stars .selected {
            color: #fbbf24;
        }
        .rating-widget textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            resize: vertical;
            min-height: 100px;
        }
        .comment-list .comment {
            border-bottom: 1px solid #e2e8f0;
            padding: 1rem 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: bold;
            color: #1e293b;
        }
        .comment-date {
            font-size: 0.85rem;
            color: #64748b;
        }
        .site-footer {
            background-color: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3b82f6;
            display: inline-block;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #cbd5e1;
        }
        .footer-links a:hover {
            color: #60a5fa;
            padding-left: 5px;
            transition: all 0.3s;
        }
        friend-link {
            display: block;
            background-color: #0f172a;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1rem;
        }
        friend-link h4 {
            color: #60a5fa;
            margin-bottom: 1rem;
        }
        friend-link ul {
            list-style: none;
            padding-left: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 10px;
        }
        friend-link a {
            color: #cbd5e1;
            display: block;
            padding: 8px;
            border-radius: 5px;
            background-color: #1e293b;
        }
        friend-link a:hover {
            background-color: #334155;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .main-content {
                gap: 1.5rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.5rem;
            }
        }