:root {
            --primary-color: #FF6B35;
            --secondary-color: #004E89;
            --accent-color: #00A6A6;
            --dark-color: #1A1A2E;
            --light-color: #F8F9FA;
            --gray-color: #6C757D;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--secondary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-color);
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: 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: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--primary-color);
        }
        .search-bar {
            display: flex;
            max-width: 400px;
            flex-grow: 1;
            margin: 0 30px;
        }
        .search-bar input {
            flex-grow: 1;
            padding: 12px 20px;
            border: 2px solid #e9ecef;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-bar input:focus {
            border-color: var(--primary-color);
        }
        .search-bar button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-bar button:hover {
            background-color: var(--secondary-color);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--dark-color);
            cursor: pointer;
        }
        nav {
            background-color: var(--dark-color);
            border-top: 3px solid var(--primary-color);
        }
        .nav-links {
            display: flex;
            justify-content: center;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            display: block;
            padding: 18px 25px;
            color: white;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray-color);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: var(--gray-color);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 40px;
            overflow: hidden;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 25px;
        }
        .sidebar-widget h3 {
            color: var(--secondary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e9ecef;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--gray-color);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        strong {
            color: var(--dark-color);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #e9ecef;
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .update-time {
            background-color: #fff3cd;
            padding: 10px 15px;
            border-radius: var(--border-radius);
            border-left: 4px solid #ffc107;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .insider-tip {
            background-color: #e8f4fd;
            border-left: 4px solid var(--accent-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .insider-tip h4 {
            color: var(--accent-color);
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
        }
        .link-list a {
            display: block;
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--primary-color);
            transition: var(--transition);
        }
        .link-list a:hover {
            background-color: #e9ecef;
            transform: translateY(-3px);
        }
        .comment-form, .rating-form {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #e9ecef;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 14px 30px;
            border: none;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 20px 0;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: var(--primary-color);
        }
        friend-link a {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-bar {
                order: 3;
                margin: 20px 0 0;
                max-width: 100%;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links a {
                padding: 15px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .article-content {
                padding: 25px;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }
        .tab-container {
            margin: 30px 0;
        }
        .tab-buttons {
            display: flex;
            border-bottom: 2px solid #e9ecef;
        }
        .tab-btn {
            padding: 15px 25px;
            background: none;
            border: none;
            font-weight: 600;
            color: var(--gray-color);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }
        .tab-btn.active {
            color: var(--primary-color);
        }
        .tab-btn.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary-color);
        }
        .tab-content {
            padding: 25px;
            background-color: #f8f9fa;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .tab-pane {
            display: none;
        }
        .tab-pane.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .stat-box {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin: 30px 0;
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            flex: 1;
            min-width: 150px;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--gray-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255, 107, 53, 0.1) 0%, rgba(0, 78, 137, 0.1) 100%);
            padding: 25px;
            border-radius: var(--border-radius);
            margin: 25px 0;
            border-left: 4px solid var(--primary-color);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }