:root {
            --bg: #060f0a;
            --surface: #0d2015;
            --surface-hover: #132f1f;
            --surface-border: #1a402a;
            --accent: #fbbf24;
            --accent-hover: #f59e0b;
            --accent2: #34d399;
            --text: #f0fdf4;
            --muted: #8fa898;
            --font-display: 'Oswald', sans-serif;
            --font-body: 'Fira Sans', sans-serif;
            --container-width: 1024px;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Reset & Base */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }

        /* Typography */
        h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
        h1 { font-size: clamp(2rem, 5vw, 3rem); text-transform: uppercase; letter-spacing: 1px; color: var(--accent); }
        h2 { font-size: clamp(1.5rem, 4vw, 2rem); color: var(--accent); margin-bottom: 1rem; }
        h3 { font-size: 1.25rem; color: var(--text); }
        p { margin-bottom: 1rem; color: var(--text); font-size: 1rem; }
        p:last-child { margin-bottom: 0; }

        /* Header (Matching layout for verbatim HTML) */
        header {
            background: rgba(6, 15, 10, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--surface-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 1rem 0;
        }
        header .flex { display: flex; }
        header .justify-between { justify-content: space-between; }
        header .items-center { align-items: center; }
        .logo {
            font-family: var(--font-display);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .nav-links { display: none; gap: 1.5rem; }
        .nav-links a { font-weight: 500; font-size: 0.95rem; }
        .nav-links a:hover { color: var(--accent); }
        .menu-toggle {
            background: transparent;
            border: none;
            color: var(--accent);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--surface);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            border-bottom: 2px solid var(--accent);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .mobile-menu.active { display: flex; }
        .mobile-menu a {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--surface-border);
            font-weight: 500;
        }
        .mobile-menu a:hover { background: var(--surface-hover); color: var(--accent); }

        @media (min-width: 1024px) {
            .nav-links { display: flex; }
            .menu-toggle { display: none; }
            .mobile-menu.active { display: none; }
        }

        /* Hero Banner */
        .hero {
            position: relative;
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, var(--bg) 0%, var(--surface) 100%);
            border-bottom: 2px solid var(--surface-border);
            overflow: hidden;
            text-align: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: repeating-linear-gradient(
                45deg,
                transparent,
                transparent 10px,
                rgba(251, 191, 36, 0.03) 10px,
                rgba(251, 191, 36, 0.03) 20px
            );
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            position: relative;
            z-index: 2;
        }
        .breadcrumb a { color: var(--accent2); }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: var(--text); }
        .hero h1 { position: relative; z-index: 2; margin-bottom: 1.5rem; text-shadow: 0 4px 12px rgba(0,0,0,0.5); }
        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .chip {
            background: var(--surface-hover);
            border: 1px solid var(--surface-border);
            padding: 0.25rem 0.75rem;
            border-radius: 50px;
            font-size: 0.875rem;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .chip::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        /* Main Article Area */
        .page-content { padding: 4rem 0; }

        .intro-block {
            background: var(--surface);
            border-left: 4px solid var(--accent);
            padding: 2rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 4rem;
            font-size: 1.125rem;
            line-height: 1.8;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            position: relative;
        }
        .intro-block::after {
            content: '"';
            position: absolute;
            top: -1rem;
            right: 1rem;
            font-family: var(--font-display);
            font-size: 6rem;
            color: rgba(251, 191, 36, 0.1);
            line-height: 1;
        }

        .content-grid {
            display: grid;
            gap: 4rem;
        }

        @media (min-width: 1024px) {
            .content-grid { grid-template-columns: 1fr 1fr; }
            .content-section:nth-child(3) { grid-column: 1 / -1; }
            .content-section:nth-child(4) { grid-column: 1 / -1; }
        }

        .content-section p a {
            color: var(--accent2);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(52, 211, 153, 0.4);
        }
        .content-section p a:hover {
            text-decoration-color: var(--accent2);
            color: var(--accent);
        }

        .styled-list {
            list-style: none;
            margin-top: 1.5rem;
            background: var(--surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--surface-border);
        }
        .styled-list li {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 1rem;
            color: var(--text);
        }
        .styled-list li:last-child { margin-bottom: 0; }
        .styled-list li::before {
            content: '♦';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--accent);
            font-size: 1.2rem;
            line-height: 1.2;
        }

        /* FAQ Section */
        .faq-section {
            margin-top: 4rem;
            padding-top: 4rem;
            border-top: 1px solid var(--surface-border);
        }
        .faq-section h2 { text-align: center; margin-bottom: 2.5rem; }
        .faq-wrapper {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }
        details {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        details[open] { border-color: var(--accent); box-shadow: 0 4px 12px rgba(251, 191, 36, 0.1); }
        summary {
            padding: 1.25rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.125rem;
            font-weight: 500;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            transition: transform 0.3s ease;
        }
        details[open] summary::after { transform: rotate(45deg); }
        details p {
            padding: 0 1.5rem 1.25rem;
            color: var(--muted);
            border-top: 1px solid transparent;
        }
        details[open] p { border-top-color: var(--surface-border); padding-top: 1.25rem; }

        /* Related Pages Nav */
        .related-nav {
            margin-top: 4rem;
            background: var(--surface);
            padding: 3rem 0;
            border-top: 1px solid var(--surface-border);
            border-bottom: 1px solid var(--surface-border);
        }
        .related-nav h2 { text-align: center; margin-bottom: 2rem; color: var(--text); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .related-link {
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg);
            border: 1px solid var(--surface-border);
            padding: 1.5rem 1rem;
            border-radius: var(--radius-md);
            font-family: var(--font-display);
            font-weight: 500;
            color: var(--accent2);
            text-transform: capitalize;
            min-height: 80px;
            position: relative;
            overflow: hidden;
        }
        .related-link::before {
            content: '';
            position: absolute;
            bottom: 0; left: 0; width: 100%; height: 3px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.3s ease;
        }
        .related-link:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
        }
        .related-link:hover::before {
            transform: scaleX(1);
            transform-origin: left;
        }

        /* CTA Section */
        .cta-section { padding: 5rem 0; }
        .cta-box {
            background: linear-gradient(45deg, var(--surface), var(--surface-hover));
            border: 1px solid var(--accent);
            border-radius: var(--radius-lg);
            padding: 4rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(251,191,36,0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box h2 { font-size: clamp(2rem, 4vw, 2.5rem); margin-bottom: 1rem; position: relative; z-index: 2; }
        .cta-box p { color: var(--muted); margin-bottom: 2.5rem; font-size: 1.125rem; max-width: 600px; margin-left: auto; margin-right: auto; position: relative; z-index: 2; }
        .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2rem;
            font-family: var(--font-display);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-radius: var(--radius-sm);
            min-width: 160px;
            min-height: 48px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--bg);
            border: 2px solid var(--accent);
        }
        .btn-primary:hover {
            background: transparent;
            color: var(--accent);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text);
            border: 2px solid var(--surface-border);
        }
        .btn-secondary:hover {
            border-color: var(--accent2);
            color: var(--accent2);
        }

        /* Footer (Matching layout for verbatim HTML) */
        footer {
            background: var(--bg);
            border-top: 2px solid var(--surface-border);
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (min-width: 1024px) {
            .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
        }
        .footer-brand .logo { margin-bottom: 1rem; display: inline-block; }
        .footer-tagline { color: var(--muted); font-size: 0.95rem; }
        .footer-links h4 {
            color: var(--text);
            margin-bottom: 1.25rem;
            font-size: 1.125rem;
            border-bottom: 1px solid var(--surface-border);
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.75rem; }
        .footer-links a { color: var(--muted); font-size: 0.95rem; }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--surface-border);
            padding: 1.5rem 0;
            text-align: center;
            color: var(--muted);
            font-size: 0.875rem;
            background: #040a07;
        }


/* pipeline image & layout guards */
html, body { overflow-x: clip; }
img { max-width: 100%; height: auto; }
img.site-logo { height: 40px; width: auto; max-width: 240px; object-fit: contain; flex: none; }
header .logo a { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
img.hero-visual { width: 100%; max-width: 560px; height: auto; object-fit: cover; border-radius: 16px; display: block; margin-inline: auto; }
img[class^="strip-"], img[class*=" strip-"] { width: 100%; height: auto; display: block; border-radius: 12px; object-fit: cover; }
/* 合规声明块（zb-disclaimer，全站 footer） */
.zb-disclaimer { margin-top: 18px !important; padding: 14px 0 0 0 !important; border-top: 1px solid rgba(128,128,128,.25) !important; font-size: .72rem !important; line-height: 1.7 !important; opacity: .85 !important; display: block !important; text-align: left !important; width: 100% !important; clear: both !important; }
.zb-disclaimer .zb-18 { display: inline-block !important; padding: 2px 10px !important; border: 1.5px solid currentColor !important; border-radius: 6px !important; font-weight: 800 !important; letter-spacing: 1px !important; margin: 0 0 10px 0 !important; font-size: .78rem !important; }
.zb-disclaimer p { display: block !important; margin: 5px 0 !important; padding: 0 !important; color: inherit !important; font-size: .72rem !important; line-height: 1.7 !important; }
.zb-disclaimer p:last-child { margin-bottom: 0 !important; }