*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #e10600;
            --primary-dark: #b00500;
            --secondary: #1e1e1e;
            --accent: #ffd700;
            --bg: #f4f4f4;
            --card-bg: #ffffff;
            --text: #1a1a1a;
            --text-light: #555;
            --border: #ddd;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --font: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --header-h: 70px;
        }
        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;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            height: var(--header-h);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo span {
            color: var(--primary);
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #aaa;
            display: block;
            line-height: 1;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-menu a {
            color: #ddd;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            list-style: none;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #aaa;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .main-wrap {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            color: var(--secondary);
        }
        .article-body h1 .highlight {
            color: var(--primary);
        }
        .article-body .subhead {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }
        .article-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
        }
        .meta i {
            margin-right: 6px;
            color: var(--primary);
        }
        .featured-image {
            margin: 1.5rem 0 2.5rem;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            font-size: 0.85rem;
            color: var(--text-light);
            padding: 10px 16px;
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: var(--secondary);
            border-bottom: 2px solid var(--primary);
            padding-bottom: 6px;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #222;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #333;
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .article-body ul,
        .article-body ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        .article-body li {
            margin-bottom: 0.4rem;
        }
        .article-body strong {
            color: var(--secondary);
        }
        .article-body .emoji-big {
            font-size: 1.3rem;
        }
        .info-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 1.8rem 0;
            box-shadow: var(--shadow);
            border-left: 5px solid var(--primary);
        }
        .info-card.amber {
            border-left-color: var(--accent);
        }
        .info-card.green {
            border-left-color: #2e7d32;
        }
        .info-card h4 {
            margin-top: 0;
        }
        .specs-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
            margin: 1rem 0 1.5rem;
        }
        .specs-grid .label {
            font-weight: 600;
            color: var(--secondary);
        }
        .specs-grid .value {
            color: var(--text-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: 0.25s;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(225, 6, 0, 0.35);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .link-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 20px;
            margin: 1rem 0 1.5rem;
            padding: 0;
            list-style: none;
        }
        .link-list li::before {
            content: "🏎️ ";
            font-size: 0.9rem;
        }
        .link-list a {
            font-weight: 500;
        }
        .sidebar {
            position: sticky;
            top: calc(var(--header-h) + 20px);
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 22px 20px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 6px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 8px;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            border-bottom: 1px solid #f0f0f0;
            font-size: 0.9rem;
        }
        .sidebar-card li a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .sidebar-card li a i {
            width: 20px;
            color: var(--primary);
            font-size: 0.85rem;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin: 1rem 0;
        }
        .search-box input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            background: var(--secondary);
            color: #fff;
            border: none;
            padding: 0 20px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            transition: 0.2s;
        }
        .search-box button:hover {
            background: #000;
        }
        .interaction-area {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid var(--border);
        }
        .interaction-area h2 {
            margin-top: 0;
        }
        .comment-form,
        .rating-form {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 28px;
            box-shadow: var(--shadow);
            margin: 1.5rem 0 2rem;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 0.95rem;
            resize: vertical;
            outline: none;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin: 12px 0;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
        }
        .comment-form .form-row input:focus {
            border-color: var(--primary);
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            margin: 10px 0 16px;
        }
        .rating-stars i.active {
            color: var(--accent);
        }
        .rating-stars i:hover {
            color: var(--accent);
        }
        .site-footer {
            background: var(--secondary);
            color: #bbb;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .footer-grid a {
            color: #aaa;
            display: block;
            margin-bottom: 6px;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid #333;
            border-bottom: 1px solid #333;
            margin-bottom: 20px;
        }
        friend-link a {
            color: #aaa;
            margin-right: 24px;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            font-size: 0.85rem;
            color: #888;
            border-top: 1px solid #333;
        }
        .copyright strong {
            color: #ccc;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 60px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--secondary);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                border-top: 1px solid #333;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 0;
                border-bottom: 1px solid #333;
                width: 100%;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .specs-grid {
                grid-template-columns: 1fr;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar-card {
                padding: 16px;
            }
            .comment-form,
            .rating-form {
                padding: 16px;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                min-width: unset;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .header-inner {
                padding: 0 12px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .breadcrumb ol {
                padding: 0 12px;
                font-size: 0.75rem;
            }
            .info-card {
                padding: 16px;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }