:root {
            --bg: #12100a;
            --surface: #232012;
            --surface-light: #332f1a;
            --accent: #f5c542;
            --accent-hover: #e0b030;
            --accent2: #84cc16;
            --text: #fdfaf0;
            --muted: #b8b28f;
            --font-display: 'Teko', sans-serif;
            --font-body: 'Nunito', sans-serif;
            --radius: 4px;
            --transition: all 0.3s ease;
            --container-w: 1024px;
            --shadow-stack: 4px 4px 0px 0px var(--accent);
            --shadow-stack-hover: 6px 6px 0px 0px var(--accent);
        }

        /* 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;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 500; line-height: 1.1; margin-bottom: 1rem; }
        p { margin-bottom: 1.25rem; }
        .container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 1.25rem; }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.25rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none !important;
            border: 2px solid transparent;
            min-height: 44px;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            font-weight: 600;
            box-shadow: 3px 3px 0px 0px var(--surface-light);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translate(-1px, -1px);
            box-shadow: 4px 4px 0px 0px var(--surface-light);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-secondary:hover {
            background-color: rgba(245, 197, 66, 0.1);
        }

        /* --- Header Styles (Part A1 compliance) --- */
        header { background-color: var(--surface); border-bottom: 2px solid var(--accent); position: sticky; top: 0; z-index: 100; }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-family: var(--font-display); font-size: 2.25rem; color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; display: flex; align-items: center; text-decoration: none !important; }
        .nav-desktop { display: none; }
        .nav-desktop ul { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; }
        .nav-desktop a { color: var(--text); font-family: var(--font-display); font-size: 1.35rem; text-transform: uppercase; text-decoration: none !important; }
        .nav-desktop a:hover { color: var(--accent); }
        .header-ctas { display: none; gap: 0.75rem; }
        .header-ctas .btn { padding: 0.4rem 1rem; font-size: 1.1rem; }
        .mobile-menu-btn { background: none; border: none; color: var(--accent); font-size: 2rem; cursor: pointer; padding: 0.5rem; display: block; }
        .mobile-nav { display: none; background-color: var(--surface); border-bottom: 1px solid var(--surface-light); padding: 1rem 1.25rem; position: absolute; top: 70px; left: 0; width: 100%; box-shadow: 0 10px 20px rgba(0,0,0,0.5); }
        .mobile-nav.active { display: block; }
        .mobile-nav ul { list-style: none; margin-bottom: 1.5rem; }
        .mobile-nav li { border-bottom: 1px solid var(--surface-light); }
        .mobile-nav a { display: block; padding: 1rem 0; color: var(--text); font-family: var(--font-display); font-size: 1.5rem; text-transform: uppercase; text-decoration: none !important; }
        .mobile-nav .header-ctas { display: flex !important; flex-direction: column; width: 100%; }

        @media (min-width: 1024px) {
            .mobile-menu-btn { display: none; }
            .nav-desktop { display: block; }
            .header-ctas { display: flex; }
            .mobile-nav { display: none !important; }
        }

        /* --- Page Specific Styles --- */

        /* Hero Banner */
        .hero-banner {
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            padding: 3rem 0;
            border-bottom: 1px dashed var(--surface-light);
            position: relative;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; height: 4px;
            background: repeating-linear-gradient(90deg, var(--accent), var(--accent) 10px, transparent 10px, transparent 20px);
            opacity: 0.5;
        }
        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            font-family: var(--font-body);
        }
        .breadcrumb span { color: var(--accent); margin: 0 0.5rem; }
        .hero-title {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 0px rgba(0,0,0,0.5);
        }
        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }
        .chip {
            background-color: rgba(245, 197, 66, 0.1);
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-family: var(--font-body);
            display: inline-flex;
            align-items: center;
        }
        .chip::before {
            content: '•';
            margin-right: 0.5rem;
        }
        .intro-box {
            background-color: var(--surface);
            padding: 1.5rem;
            border-left: 4px solid var(--accent);
            box-shadow: 4px 4px 0px 0px rgba(0,0,0,0.3);
            font-size: 1.1rem;
            color: var(--text);
            line-height: 1.7;
        }

        /* Content Sections */
        .content-wrapper {
            padding: 4rem 0;
            display: flex;
            flex-direction: column;
            gap: 4rem;
        }
        .section-header h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            color: var(--text);
            position: relative;
            display: inline-block;
            margin-bottom: 1.5rem;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            left: 0; bottom: -5px;
            width: 60%; height: 3px;
            background-color: var(--accent);
        }

        /* Grid Layouts for specific sections */
        .text-grid {
            display: grid;
            gap: 1.5rem;
        }

        .card-panel {
            background-color: var(--surface);
            border: 1px solid var(--surface-light);
            padding: 2rem;
            box-shadow: var(--shadow-stack);
            transition: var(--transition);
            height: 100%;
        }
        .card-panel:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-stack-hover);
        }
        .card-panel h3 { color: var(--accent); font-size: 2rem; margin-bottom: 1rem; }

        /* Specific Section Styling */
        .feature-split { display: grid; gap: 2rem; }
        .highlight-green h2::after { background-color: var(--accent2); }
        .highlight-green a { color: var(--accent2); }
        .highlight-green a:hover { color: #9cf01b; }

        /* Custom List */
        .ledger-list {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
        }
        .ledger-list li {
            position: relative;
            padding-left: 2.5rem;
            margin-bottom: 1rem;
            background-color: var(--surface);
            padding-top: 1rem;
            padding-bottom: 1rem;
            padding-right: 1rem;
            border-radius: var(--radius);
            border-left: 3px solid var(--accent);
        }
        .ledger-list li::before {
            content: '✓';
            position: absolute;
            left: 0.75rem;
            top: 1rem;
            color: var(--accent2);
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* Tips Section (Receipt style) */
        .receipt-box {
            background-color: var(--surface-light);
            padding: 2rem;
            border: 2px dashed var(--muted);
            position: relative;
        }
        .receipt-box::before, .receipt-box::after {
            content: '';
            position: absolute;
            left: 0; right: 0;
            height: 10px;
            background-size: 20px 20px;
        }
        .receipt-box::before {
            top: -5px;
            background-image: radial-gradient(circle at 10px 0, transparent 10px, var(--surface-light) 11px);
        }
        .receipt-box::after {
            bottom: -5px;
            background-image: radial-gradient(circle at 10px 10px, transparent 10px, var(--surface-light) 11px);
        }

        /* FAQ Section */
        .faq-section {
            background-color: var(--surface);
            padding: 3rem 2rem;
            border-radius: var(--radius);
            box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
        }
        .faq-title { text-align: center; color: var(--accent); font-size: 3rem; margin-bottom: 2rem; }
        details {
            background-color: var(--bg);
            border: 1px solid var(--surface-light);
            margin-bottom: 1rem;
            border-radius: var(--radius);
            overflow: hidden;
        }
        summary {
            padding: 1.25rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.5rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: rgba(255,255,255,0.02);
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            transition: transform 0.3s;
        }
        details[open] summary::after { transform: rotate(45deg); }
        details p { padding: 0 1.5rem 1.25rem; color: var(--muted); margin: 0; }

        /* Related Pages */
        .related-nav {
            background: linear-gradient(45deg, var(--surface), var(--bg));
            padding: 2.5rem;
            border: 1px solid var(--accent);
            box-shadow: var(--shadow-stack);
        }
        .related-nav h3 { color: var(--text); font-size: 2rem; margin-bottom: 1.5rem; text-align: center; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .related-grid a {
            display: block;
            padding: 1rem;
            background-color: rgba(245, 197, 66, 0.05);
            border: 1px solid rgba(245, 197, 66, 0.2);
            text-align: center;
            font-family: var(--font-display);
            font-size: 1.25rem;
            text-transform: uppercase;
            border-radius: var(--radius);
        }
        .related-grid a:hover {
            background-color: var(--accent);
            color: var(--bg);
            text-decoration: none;
        }

        /* CTA Section */
        .final-cta {
            text-align: center;
            padding: 4rem 0;
            border-top: 1px solid var(--surface-light);
        }
        .final-cta h2 { font-size: 3rem; color: var(--accent); margin-bottom: 1rem; }
        .final-cta p { color: var(--muted); margin-bottom: 2rem; font-size: 1.1rem; }
        .cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

        /* --- Footer Styles (Part A2 compliance) --- */
        footer { background-color: var(--surface); padding: 4rem 0 2rem; border-top: 2px solid var(--accent); margin-top: 4rem; }
        .footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-bottom: 3rem; }
        .footer-brand .logo { margin-bottom: 1rem; }
        .footer-tagline { color: var(--muted); font-size: 0.95rem; }
        .footer-links h4 { color: var(--accent); font-size: 1.5rem; margin-bottom: 1rem; text-transform: uppercase; }
        .footer-links ul { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 0.5rem; }
        .footer-links a { color: var(--text); text-decoration: none; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; color: var(--muted); font-size: 0.875rem; border-top: 1px solid var(--surface-light); padding-top: 2rem; }

        @media (min-width: 768px) {
            .text-grid { grid-template-columns: 1fr 1fr; }
            .feature-split { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .content-wrapper { gap: 5rem; }
        }
        @media (min-width: 1024px) {
            .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
        }


/* 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; }