*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #ff6600;
            --primary-dark: #cc5200;
            --secondary: #0a0a23;
            --accent: #ffcc00;
            --bg: #f4f4f9;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-light: #4a4a6a;
            --border: #e0e0e8;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        .header {
            background: var(--secondary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 70px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            text-transform: uppercase;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .my-logo::before {
            content: "🏎️";
            -webkit-text-fill-color: initial;
            font-size: 1.6rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .navbar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .navbar a {
            color: #ddd;
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }
        .navbar a:hover,
        .navbar a.active {
            color: #fff;
            background: rgba(255, 102, 0, 0.25);
        }
        .navbar a.active {
            background: var(--primary);
            color: #fff;
        }
        .breadcrumb-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 10px 20px 0;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
            padding: 6px 0;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 24px 20px 40px;
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 32px;
            margin-bottom: 28px;
            transition: box-shadow var(--transition);
        }
        .card:hover {
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 12px;
            color: var(--secondary);
        }
        h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-top: 40px;
            margin-bottom: 16px;
            color: var(--secondary);
            border-left: 6px solid var(--primary);
            padding-left: 16px;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 20px;
            margin-bottom: 8px;
            color: var(--text-light);
        }
        p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .lead {
            font-size: 1.15rem;
            color: var(--text-light);
            font-weight: 400;
        }
        strong {
            color: var(--secondary);
            font-weight: 700;
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .featured-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 20px 0 24px;
            box-shadow: var(--shadow);
            object-fit: cover;
            height: auto;
            max-height: 480px;
            background: var(--border);
        }
        figure {
            margin: 20px 0;
        }
        figure img {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 8px;
            font-style: italic;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .data-item {
            background: var(--bg);
            padding: 18px 16px;
            border-radius: 12px;
            text-align: center;
            border-left: 4px solid var(--primary);
            transition: transform var(--transition);
        }
        .data-item:hover {
            transform: translateY(-4px);
        }
        .data-item .num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            display: block;
        }
        .data-item .label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .testimonial {
            background: linear-gradient(135deg, #fef9f0, #fff4e6);
            border-left: 6px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            font-style: italic;
            position: relative;
        }
        .testimonial::before {
            content: "💬";
            font-size: 2rem;
            position: absolute;
            top: -12px;
            left: -12px;
            background: var(--card-bg);
            border-radius: 50%;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
        }
        .testimonial .author {
            font-style: normal;
            font-weight: 700;
            margin-top: 8px;
            display: block;
            color: var(--secondary);
        }
        ul,
        ol {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        li {
            margin-bottom: 6px;
        }
        .styled-list {
            list-style: none;
            padding-left: 0;
        }
        .styled-list li {
            padding: 8px 0 8px 32px;
            position: relative;
            border-bottom: 1px solid var(--border);
        }
        .styled-list li::before {
            content: "🔥";
            position: absolute;
            left: 0;
            top: 8px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 1px;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin: 16px 0;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border var(--transition);
            background: var(--bg);
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--secondary);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 1rem;
            font-family: var(--font);
            outline: none;
            transition: border var(--transition);
            background: var(--bg);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-primary {
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 102, 0, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            color: #ccc;
            transition: color var(--transition);
            cursor: pointer;
        }
        .rating-stars input:checked~label,
        .rating-stars label:hover,
        .rating-stars label:hover~label {
            color: var(--accent);
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px 24px;
            margin-bottom: 20px;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 8px;
            margin-bottom: 12px;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            padding: 6px 0;
            border-bottom: 1px solid var(--border);
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
        }
        .link-list a::before {
            content: "🎮";
            font-size: 1rem;
        }
        friend-link {
            display: block;
            padding: 16px 0;
        }
        .friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-top: 8px;
        }
        .friend-links-wrap a {
            color: var(--primary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .friend-links-wrap a:hover {
            color: var(--primary-dark);
            transform: translateX(4px);
            text-decoration: underline;
        }
        .footer {
            background: var(--secondary);
            color: #bbb;
            padding: 32px 20px 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 6px;
            display: inline-block;
        }
        .footer a {
            color: #ddd;
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 16px;
            font-size: 0.9rem;
            color: #888;
        }
        .footer .copyright strong {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-content {
                order: 1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
                min-height: 60px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 12px 0 16px;
                gap: 4px;
                background: var(--secondary);
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                width: 100%;
                padding: 10px 16px;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .card {
                padding: 20px 18px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .breadcrumb-wrap {
                padding: 6px 16px 0;
                font-size: 0.75rem;
            }
            .container {
                padding: 16px 16px 30px;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .card {
            animation: fadeUp 0.6s ease forwards;
        }
        .card:nth-child(2) {
            animation-delay: 0.1s;
        }
        .card:nth-child(3) {
            animation-delay: 0.2s;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #e8f5e9;
            color: #2e7d32;
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .update-badge i {
            font-size: 1rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
            font-size: 0.95rem;
        }
        .data-table th,
        .data-table td {
            padding: 10px 14px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .data-table th {
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
        }
        .data-table tr:nth-child(even) {
            background: var(--bg);
        }
        .data-table tr:hover {
            background: #f0f0f8;
        }
        .sticky-sidebar {
            position: sticky;
            top: 90px;
        }
        .toc-list {
            list-style: none;
            padding: 0;
            font-size: 0.9rem;
        }
        .toc-list li {
            padding: 4px 0;
        }
        .toc-list a {
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .toc-list a::before {
            content: "📌";
            font-size: 0.8rem;
        }
        .toc-list a:hover {
            color: var(--primary);
        }
        .comment-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item .name {
            font-weight: 700;
            color: var(--secondary);
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #999;
            margin-left: 8px;
        }
        .comment-item .text {
            margin-top: 4px;
            color: var(--text);
        }
        .fa-icon {
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
        }