:root {
            --primary: #0033a0;
            --secondary: #d52b1e;
            --accent: #009639;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            color: white;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .search-box {
            display: flex;
            flex: 0 1 400px;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 20px;
            border: 2px solid #eaeaea;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary);
        }
        nav ul {
            display: flex;
            list-style: none;
            background-color: var(--primary);
            border-radius: 8px;
            overflow: hidden;
        }
        nav ul li {
            flex: 1;
        }
        nav ul li a {
            display: block;
            color: white;
            padding: 18px 24px;
            text-align: center;
            font-weight: 600;
        }
        nav ul li a:hover {
            background-color: var(--secondary);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            margin: 0 5px;
        }
        .breadcrumb a:first-child {
            margin-left: 0;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary);
            font-size: 2.5rem;
            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 solid #f0f0f0;
            flex-wrap: wrap;
            gap: 10px;
        }
        .author, .date, .read-time {
            color: var(--gray);
            font-size: 0.95rem;
        }
        .author i, .date i, .read-time i {
            margin-right: 8px;
            color: var(--accent);
        }
        h2 {
            color: var(--secondary);
            font-size: 1.8rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #eaeaea;
        }
        h3 {
            color: var(--primary);
            font-size: 1.4rem;
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--accent);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: 600;
            color: var(--dark);
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 30px 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        .related-links {
            background-color: #f8f9ff;
            border-radius: 12px;
            padding: 25px;
            margin: 40px 0;
            border: 1px solid #e0e7ff;
        }
        .related-links h3 {
            margin-top: 0;
            color: var(--primary);
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            list-style: none;
            margin-left: 0;
        }
        .related-links li a {
            display: block;
            padding: 12px 18px;
            background-color: white;
            border-radius: 8px;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .related-links li a:hover {
            border-color: var(--primary);
            transform: translateX(5px);
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .stat {
            text-align: center;
            padding: 25px 15px;
            background: linear-gradient(135deg, #f5f7ff 0%, #e3e9ff 100%);
            border-radius: 12px;
        }
        .stat i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .stat h4 {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 5px;
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: var(--primary);
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f0f0;
        }
        .ticket-alert form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .ticket-alert input, .ticket-alert select {
            padding: 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .quick-links ul {
            list-style: none;
            margin-left: 0;
        }
        .quick-links li {
            margin-bottom: 12px;
        }
        .quick-links a {
            display: flex;
            align-items: center;
            padding: 12px 15px;
            background-color: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }
        .quick-links a:hover {
            background-color: #e9ecef;
            border-left-color: var(--secondary);
        }
        .quick-links i {
            margin-right: 12px;
            color: var(--gray);
        }
        .comment-section, .rating-section {
            background: white;
            border-radius: 12px;
            padding: 30px;
            margin-top: 40px;
            box-shadow: var(--shadow);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 25px;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 15px;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 51, 160, 0.1);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .comments-list {
            margin-top: 40px;
        }
        .comment {
            padding: 25px;
            border: 1px solid #eee;
            border-radius: 12px;
            margin-bottom: 25px;
            background-color: #fcfcfc;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: #ffc107;
            margin: 10px 0;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--secondary);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #444;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                flex: 1 1 100%;
                margin-top: 20px;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 20px;
                border-radius: 12px;
            }
            nav ul.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
        }