:root {
            --primary: #FF6B00;
            --primary-dark: #E05A00;
            --secondary: #1A1A2E;
            --accent: #00A8FF;
            --light: #F8F9FA;
            --dark: #212529;
            --gray: #6C757D;
            --gray-light: #CED4DA;
            --success: #28A745;
            --warning: #FFC107;
            --danger: #DC3545;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            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: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background-color: var(--secondary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--primary);
        }
        .logo i {
            color: var(--accent);
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            background-color: var(--primary);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            background-color: var(--secondary);
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 12px;
            display: block;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background-color: var(--primary);
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--gray-light);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--gray);
            font-size: 0.8rem;
        }
        .search-container {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            padding: 30px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .search-box {
            max-width: 700px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .search-box h2 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #000;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .article-header {
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.5rem;
            line-height: 1.3;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--secondary);
            margin-top: 40px;
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .article-content h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: var(--primary-dark);
        }
        .article-content h4 {
            font-size: 1.2rem;
            color: var(--accent);
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 30px;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .article-content strong {
            color: var(--primary-dark);
        }
        .highlight-box {
            background-color: var(--light);
            border-left: 5px solid var(--accent);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-box h3 {
            margin-top: 0;
            color: var(--accent);
        }
        .tip {
            background-color: #FFF9E6;
            border-left: 5px solid var(--warning);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip h4 {
            margin-top: 0;
            color: #856404;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 25px 0;
        }
        .link-item {
            background-color: var(--light);
            padding: 12px 20px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .link-item a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .link-item:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
        }
        .link-item:hover a {
            color: white;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        .popular-posts ul {
            list-style: none;
        }
        .popular-posts li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed var(--gray-light);
        }
        .popular-posts a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            display: block;
        }
        .popular-posts a:hover {
            color: var(--primary);
        }
        .popular-posts span {
            display: block;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 5px;
        }
        .rating-section,
        .comment-section {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 30px;
            margin-top: 40px;
            box-shadow: var(--shadow);
        }
        .rating-section h2,
        .comment-section h2 {
            color: var(--secondary);
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 30px;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: var(--gray-light);
            cursor: pointer;
        }
        .rating-stars .star.active {
            color: var(--warning);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--secondary);
        }
        .form-control {
            padding: 15px;
            border: 1px solid var(--gray-light);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            background-color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .comments-list {
            display: flex;
            flex-direction: column;
            gap: 25px;
            margin-top: 30px;
        }
        .comment {
            padding: 20px;
            background-color: var(--light);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: 700;
            color: var(--secondary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: var(--warning);
            margin-bottom: 10px;
        }
        .footer {
            background-color: var(--secondary);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .footer-widget h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-widget h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background-color: var(--primary);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--gray-light);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 20px 0;
        }
        friend-link h4 {
            color: white;
            margin-bottom: 15px;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        friend-link li {
            background-color: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 50px;
            transition: var(--transition);
        }
        friend-link li:hover {
            background-color: var(--primary);
        }
        friend-link a {
            color: white;
            text-decoration: none;
            font-size: 0.9rem;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray-light);
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .emoji { font-size: 1.2em; }
        .fa-solid, .fa-regular, .fa-brands { min-width: 20px; }
        @media (max-width: 992px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .article-header h1 { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .search-form { flex-direction: column; border-radius: var(--border-radius); }
            .search-input, .search-button { border-radius: 0; width: 100%; }
            .article-meta { flex-direction: column; gap: 10px; }
            .footer-content { grid-template-columns: 1fr; }
        }