:root {
            /* Palette */
            --bg: #12100a;
            --surface: #232012;
            --surface-hover: #2d2918;
            --accent: #f5c542;
            --accent-dark: #d4a72c;
            --accent2: #84cc16;
            --text: #fdfaf0;
            --muted: #b8b28f;

            /* Typography */
            --font-display: 'Teko', sans-serif;
            --font-body: 'Nunito', sans-serif;

            /* Structural */
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --container: 1200px;
            --transition: all 0.3s ease;
        }

        /* 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;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-dark);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            font-weight: 500;
            line-height: 1.1;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.6rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.25rem;
            text-transform: uppercase;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            min-height: 44px;
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background-color: var(--accent);
            color: #000;
            font-weight: 600;
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }

        .btn-secondary:hover {
            background-color: rgba(245, 197, 66, 0.1);
        }

        /* Header (Verbatim styling context) */
        header {
            background-color: rgba(18, 16, 10, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(245, 197, 66, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-family: var(--font-display);
            font-size: 2.5rem;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-desktop ul {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-desktop a {
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .nav-desktop a:hover {
            color: var(--accent);
        }

        .header-ctas {
            display: flex;
            gap: 1rem;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--accent);
            font-size: 2rem;
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
        }

        .mobile-nav {
            display: none;
            background-color: var(--surface);
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(245, 197, 66, 0.2);
        }

        .mobile-nav.active {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            margin-bottom: 1rem;
        }

        .mobile-nav li {
            margin-bottom: 0.5rem;
        }

        .mobile-nav a {
            display: block;
            padding: 0.5rem 0;
            color: var(--text);
            font-size: 1.1rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        .mobile-nav .header-ctas {
            flex-direction: column;
        }

        /* Page Specific: Hero Banner */
        .faq-hero {
            padding: 4rem 0 3rem;
            background: linear-gradient(180deg, rgba(35, 32, 18, 0.8) 0%, var(--bg) 100%);
            border-bottom: 1px solid rgba(245, 197, 66, 0.1);
            position: relative;
            overflow: hidden;
        }

        /* Decorative Coin Stack Motif in Background */
        .faq-hero::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            border: 20px solid rgba(245, 197, 66, 0.03);
            box-shadow: inset 0 0 0 20px rgba(245, 197, 66, 0.02),
                        inset 0 0 0 40px rgba(245, 197, 66, 0.01);
            z-index: 0;
        }

        .faq-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: inline-block;
            background: rgba(0,0,0,0.3);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            border: 1px solid rgba(184, 178, 143, 0.2);
        }

        .faq-hero h1 {
            font-size: 4rem;
            color: var(--accent);
            margin-bottom: 1rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }

        .meta-chips {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .chip {
            background-color: var(--surface);
            color: var(--muted);
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            border-left: 3px solid var(--accent);
            display: flex;
            align-items: center;
        }

        .intro-blockquote {
            font-size: 1.1rem;
            color: var(--text);
            max-width: 900px;
            border-left: 4px solid var(--accent2);
            padding-left: 1.5rem;
            background: rgba(35, 32, 18, 0.5);
            padding: 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        /* Main Content Area */
        .content-area {
            padding: 4rem 0;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
        }

        /* Guide Cards (Body Sections) */
        .guide-section {
            background-color: var(--surface);
            border-radius: var(--radius-md);
            padding: 2.5rem;
            border: 1px solid rgba(245, 197, 66, 0.1);
            position: relative;
            transition: var(--transition);
        }

        .guide-section:hover {
            border-color: rgba(245, 197, 66, 0.3);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        /* Coin Stack Motif Decorator */
        .coin-decorator {
            position: absolute;
            top: 2.5rem;
            right: 2.5rem;
            width: 24px;
            height: 4px;
            background-color: var(--accent);
            border-radius: 2px;
            box-shadow: 0 -8px 0 var(--accent), 0 -16px 0 var(--accent);
            opacity: 0.2;
        }

        .guide-section h2 {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 1.5rem;
            padding-right: 3rem; /* space for decorator */
        }

        .guide-section p {
            margin-bottom: 1.2rem;
            color: var(--muted);
            font-size: 1.05rem;
        }

        .guide-section p:last-child {
            margin-bottom: 0;
        }

        .guide-section a {
            text-decoration: underline;
            text-decoration-color: rgba(245, 197, 66, 0.4);
            text-underline-offset: 4px;
        }

        .guide-section a:hover {
            text-decoration-color: var(--accent);
        }

        .custom-checklist {
            list-style: none;
            margin-top: 1.5rem;
            background: rgba(18, 16, 10, 0.5);
            padding: 1.5rem;
            border-radius: var(--radius-sm);
            border: 1px dashed rgba(184, 178, 143, 0.2);
        }

        .custom-checklist li {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 0.8rem;
            color: var(--text);
        }

        .custom-checklist li:last-child {
            margin-bottom: 0;
        }

        .custom-checklist li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 18px;
            height: 18px;
            background-color: rgba(132, 204, 22, 0.1);
            border: 1px solid var(--accent2);
            border-radius: 50%;
        }

        .custom-checklist li::after {
            content: '✓';
            position: absolute;
            left: 5px;
            top: 2px;
            color: var(--accent2);
            font-size: 0.8rem;
            font-weight: bold;
        }

        /* FAQ Accordion */
        .faq-wrapper {
            margin-top: 4rem;
        }

        .section-title {
            font-size: 2.8rem;
            color: var(--text);
            margin-bottom: 2rem;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
        }

        .section-title::before,
        .section-title::after {
            content: '';
            height: 2px;
            width: 60px;
            background: linear-gradient(90deg, transparent, var(--accent));
        }
        .section-title::after {
            background: linear-gradient(270deg, transparent, var(--accent));
        }

        .faq-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        details.faq-item {
            background-color: var(--surface);
            border: 1px solid rgba(245, 197, 66, 0.15);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        details.faq-item:hover {
            border-color: var(--accent);
        }

        details.faq-item summary {
            font-family: var(--font-display);
            font-size: 1.6rem;
            color: var(--text);
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            list-style: none;
            position: relative;
            padding-right: 3rem;
            background: linear-gradient(90deg, rgba(245, 197, 66, 0.05) 0%, transparent 100%);
        }

        details.faq-item summary::-webkit-details-marker {
            display: none;
        }

        details.faq-item summary::after {
            content: '+';
            position: absolute;
            right: 1.5rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 2rem;
            font-weight: 400;
            line-height: 1;
        }

        details.faq-item[open] summary::after {
            content: '−';
        }

        details.faq-item[open] summary {
            color: var(--accent);
            border-bottom: 1px dashed rgba(245, 197, 66, 0.2);
        }

        details.faq-item p {
            padding: 1.5rem;
            color: var(--muted);
            margin: 0;
            background-color: rgba(18, 16, 10, 0.3);
        }

        /* Related Pages Block */
        .related-block {
            margin-top: 5rem;
            padding: 3rem;
            background-color: var(--surface);
            border-radius: var(--radius-lg);
            text-align: center;
            border-top: 4px solid var(--accent);
        }

        .related-block h3 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: var(--text);
        }

        .related-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        .related-link {
            display: inline-block;
            padding: 0.8rem 1.5rem;
            background-color: var(--bg);
            border: 1px solid rgba(184, 178, 143, 0.2);
            border-radius: 30px;
            color: var(--muted);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .related-link:hover {
            background-color: var(--accent);
            color: #000;
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* Final CTA */
        .final-cta {
            margin: 4rem 0;
            padding: 4rem 2rem;
            background: linear-gradient(135deg, #2d2918 0%, var(--surface) 100%);
            border-radius: var(--radius-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(245, 197, 66, 0.2);
        }

        /* Ledger pattern overlay */
        .final-cta::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: linear-gradient(rgba(245, 197, 66, 0.03) 1px, transparent 1px);
            background-size: 100% 20px;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .final-cta h2 {
            font-size: 3rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }

        .final-cta p {
            font-size: 1.2rem;
            color: var(--text);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
        }

        /* Footer (Verbatim styling context) */
        footer {
            background-color: #0a0906;
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(245, 197, 66, 0.2);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand .logo {
            margin-bottom: 1rem;
        }

        .footer-tagline {
            color: var(--muted);
            font-size: 0.95rem;
        }

        .footer-links h4 {
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 1.5rem;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.95rem;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(184, 178, 143, 0.1);
            color: rgba(184, 178, 143, 0.6);
            font-size: 0.9rem;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-hero h1 {
                font-size: 3.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop, .header-ctas {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .faq-hero {
                padding: 3rem 0 2rem;
            }
            .faq-hero h1 {
                font-size: 2.8rem;
            }
            .guide-section {
                padding: 1.5rem;
            }
            .guide-section h2 {
                font-size: 1.8rem;
            }
            .coin-decorator {
                top: 1.5rem;
                right: 1.5rem;
            }
            .section-title {
                font-size: 2.2rem;
            }
            .section-title::before, .section-title::after {
                width: 30px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .related-block {
                padding: 2rem 1.5rem;
            }
        }

        @media (max-width: 390px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .faq-hero h1 {
                font-size: 2.2rem;
            }
            .meta-chips {
                flex-direction: column;
                gap: 0.5rem;
                align-items: flex-start;
            }
            details.faq-item summary {
                font-size: 1.3rem;
                padding: 1rem;
                padding-right: 2.5rem;
            }
            .final-cta h2 {
                font-size: 2.2rem;
            }
        }


/* 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; }