*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --bg-primary: #0a0e17;
            --bg-secondary: #111927;
            --bg-card: #1a2332;
            --bg-card-hover: #1f2a3d;
            --accent: #f0a500;
            --accent-glow: #ff6b35;
            --text-primary: #e8edf5;
            --text-secondary: #9aa8b9;
            --text-muted: #6a7a8a;
            --border-color: #2a3548;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            --radius: 12px;
            --radius-sm: 6px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-glow);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--bg-secondary);
            border-bottom: 2px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            max-width: 1200px;
            margin: 0 auto;
            flex-wrap: wrap;
            gap: 10px;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            font-size: 1.8rem;
            -webkit-text-fill-color: var(--accent);
            color: var(--accent);
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-card);
        }
        .main-nav {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: var(--bg-card);
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a.active {
            border-bottom: 2px solid var(--accent);
        }
        .breadcrumb-wrap {
            background: var(--bg-secondary);
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            list-style: none;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .article-body {
            background: var(--bg-secondary);
            border-radius: var(--radius);
            padding: 30px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 40px 0 16px 0;
            color: var(--accent);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 8px;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin: 28px 0 12px 0;
            color: var(--text-primary);
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 20px 0 8px 0;
            color: var(--text-secondary);
        }
        p {
            margin-bottom: 16px;
            color: var(--text-secondary);
        }
        .last-updated {
            display: inline-block;
            background: var(--bg-card);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            border: 1px solid var(--border-color);
        }
        .last-updated i {
            margin-right: 6px;
            color: var(--accent);
        }
        .featured-image {
            margin: 24px 0 28px 0;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            padding: 8px;
        }
        .featured-image img {
            width: 100%;
            border-radius: 4px;
        }
        .featured-image figcaption {
            padding: 10px 8px 4px;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            font-style: italic;
        }
        .highlight-box {
            background: var(--bg-card);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            margin: 16px 0;
            padding: 0;
            list-style: none;
        }
        .link-list-inline li a {
            background: var(--bg-card);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .link-list-inline li a:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent);
            text-decoration: none;
        }
        .search-section {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 32px 0;
            border: 1px solid var(--border-color);
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            background: var(--bg-primary);
            color: var(--text-primary);
            font-size: 1rem;
            transition: border var(--transition);
        }
        .search-form input[type="text"]:focus {
            outline: none;
            border-color: var(--accent);
        }
        .search-form button {
            padding: 12px 28px;
            border: none;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            color: #0a0e17;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: opacity var(--transition);
        }
        .search-form button:hover {
            opacity: 0.9;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 32px 0;
        }
        .feedback-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 28px;
            border: 1px solid var(--border-color);
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            background: var(--bg-primary);
            color: var(--text-primary);
            font-size: 0.95rem;
            font-family: inherit;
            transition: border var(--transition);
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            outline: none;
            border-color: var(--accent);
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card button {
            align-self: flex-start;
            padding: 10px 28px;
            border: none;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: #0a0e17;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: opacity var(--transition);
        }
        .feedback-card button:hover {
            opacity: 0.9;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: color var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 2px solid var(--border-color);
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .footer-inner h4 {
            color: var(--accent);
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        friend-link {
            display: block;
            background: var(--bg-card);
            padding: 16px 20px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        friend-link a {
            display: inline-block;
            margin: 4px 0;
            padding: 4px 0;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            margin-top: 10px;
        }
        .copyright strong {
            color: var(--text-secondary);
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 900px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .article-body {
                padding: 20px 16px;
            }
        }
        @media (max-width: 700px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--bg-secondary);
                padding: 12px 0;
                border-top: 1px solid var(--border-color);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 20px;
                width: 100%;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .feedback-card {
                padding: 18px 16px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .article-body {
                padding: 16px 12px;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .text-accent {
            color: var(--accent);
        }
        .fw-bold {
            font-weight: 700;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }