:root {
            --primary: #FF6600;
            --secondary: #0099CC;
            --dark: #1A2B3C;
            --light: #F5F9FC;
            --gray: #6C757D;
            --success: #28A745;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: var(--primary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        .my-logo span {
            color: var(--dark);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            flex-grow: 1;
            margin: 0 30px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 20px;
            border: 2px solid #ddd;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: var(--primary);
        }
        .nav-desktop {
            display: flex;
            background: var(--dark);
            border-radius: var(--radius);
            overflow: hidden;
        }
        .nav-desktop a {
            color: white;
            padding: 15px 25px;
            flex: 1;
            text-align: center;
            font-weight: 600;
            border-right: 1px solid rgba(255,255,255,0.1);
        }
        .nav-desktop a:last-child {
            border-right: none;
        }
        .nav-desktop a:hover {
            background: var(--primary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: var(--dark);
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--dark);
            border-radius: var(--radius);
            margin-top: 10px;
            overflow: hidden;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            text-align: center;
        }
        .nav-mobile a:hover {
            background: var(--primary);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 20px;
            margin-bottom: 30px;
            border-bottom: 2px dashed #eee;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .last-updated {
            font-style: italic;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--primary);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(0,153,204,0.05);
            padding: 20px;
            border-left: 5px solid var(--secondary);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-bottom: 30px;
        }
        .highlight {
            background: #FFF9E6;
            padding: 25px;
            border-radius: var(--radius);
            border: 2px solid #FFE066;
            margin: 25px 0;
        }
        .highlight p:last-child {
            margin-bottom: 0;
        }
        .quote {
            font-style: italic;
            padding: 25px;
            border-left: 5px solid var(--primary);
            background: rgba(255,102,0,0.05);
            margin: 25px 0;
            color: #555;
        }
        .quote-author {
            text-align: right;
            font-weight: bold;
            color: var(--dark);
            margin-top: 10px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 30px auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -20px;
            margin-bottom: 30px;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 10px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: var(--light);
            padding: 25px;
            border-radius: var(--radius);
            text-align: center;
            border-top: 5px solid var(--secondary);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .stat-label {
            font-size: 1.1rem;
            color: var(--dark);
            margin-top: 10px;
        }
        .link-box {
            background: rgba(0,153,204,0.08);
            padding: 20px;
            border-radius: var(--radius);
            margin: 25px 0;
        }
        .link-box h4 {
            margin-top: 0;
            color: var(--secondary);
        }
        .link-box ul {
            margin-left: 0;
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .link-box li {
            margin: 0;
        }
        .link-box a {
            display: inline-block;
            background: white;
            padding: 8px 16px;
            border-radius: 50px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            font-size: 0.9rem;
        }
        .link-box a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            color: #ddd;
            margin: 10px 0;
        }
        .stars i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover,
        .stars i.active {
            color: #FFCC00;
        }
        .rating-widget input,
        .rating-widget textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .rating-widget button,
        .comment-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 14px;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .rating-widget button:hover,
        .comment-form button:hover {
            background: #E55A00;
        }
        .comment {
            border-bottom: 1px solid #eee;
            padding: 20px 0;
        }
        .comment:first-child {
            padding-top: 0;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: bold;
            color: var(--dark);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
        }
        .footer-logo span {
            color: var(--primary);
        }
        .footer-links h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        .footer-links ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--radius);
            margin: 10px 0;
            text-align: center;
        }
        friend-link a {
            color: #fff;
            font-weight: 600;
        }
        friend-link a:hover {
            color: var(--primary);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                margin: 15px 0 0;
                max-width: 100%;
            }
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile {
                order: 4;
                width: 100%;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 25px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-content {
                padding: 20px;
            }
            h1 {
                font-size: 1.9rem;
            }
            .link-box ul {
                flex-direction: column;
                align-items: flex-start;
            }
        }