:root {
            /* Palette */
            --bg: #170812;
            --surface: #2b1030;
            --surface-hover: #3a1642;
            --accent: #f0c419;
            --accent-hover: #ffd740;
            --accent2: #b565d8;
            --text: #fdf4ff;
            --muted: #b895b0;

            /* Typography */
            --font-display: 'Playfair Display', serif;
            --font-body: 'Inter', sans-serif;

            /* Spacing & Layout */
            --container-w: 1200px;
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 4rem;
            --space-xl: 6rem;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;

            /* Effects */
            --shadow-subtle: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-glow: 0 0 15px rgba(240, 196, 25, 0.2);
            --transition: all 0.3s ease;
        }

        /* 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;
            background-image:
                radial-gradient(circle at top center, rgba(43, 16, 48, 0.5) 0%, transparent 60%),
                linear-gradient(to bottom, #170812, #11050d);
            background-attachment: fixed;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        .container { max-width: var(--container-w); margin: 0 auto; padding: 0 var(--space-sm); }

        /* Typography Elements */
        h1, h2, h3, .brand-logo { font-family: var(--font-display); font-weight: 600; line-height: 1.2; }
        p { margin-bottom: 1.5rem; color: var(--text); font-weight: 300; }

        /* Buttons */
        .btn {
            display: inline-flex; justify-content: center; align-items: center;
            padding: 0.75rem 1.5rem; border-radius: var(--radius-sm);
            font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
            cursor: pointer; transition: var(--transition);
            min-height: 44px; /* Touch target */
        }
        .btn-primary {
            background-color: var(--accent); color: var(--bg);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover { background-color: var(--accent-hover); transform: translateY(-2px); }
        .btn-secondary {
            background-color: transparent; color: var(--accent);
            border: 1px solid var(--accent);
        }
        .btn-secondary:hover { background-color: rgba(240, 196, 25, 0.1); }

        /* HEADER (A1) */
        header {
            background-color: rgba(23, 8, 18, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(181, 101, 216, 0.2);
            position: sticky; top: 0; z-index: 100;
        }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .brand-logo { font-size: 1.75rem; color: var(--accent); letter-spacing: 1px; }
        .nav-links { display: none; gap: 1.5rem; }
        .nav-links a { color: var(--text); font-size: 0.9rem; font-weight: 500; }
        .nav-links a:hover { color: var(--accent2); }
        .header-actions { display: none; gap: 1rem; }
        .mobile-menu-btn {
            background: none; border: none; color: var(--accent); font-size: 1.5rem;
            cursor: pointer; padding: 0.5rem; display: block; min-height: 44px; min-width: 44px;
        }
        .mobile-nav {
            display: none; flex-direction: column; background-color: var(--surface);
            position: absolute; top: 70px; left: 0; right: 0; padding: 1rem;
            border-bottom: 1px solid var(--accent2);
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a { padding: 0.75rem 0; color: var(--text); border-bottom: 1px solid rgba(255,255,255,0.05); }
        .header-actions-mobile { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }

        /* HERO BANNER */
        .page-hero {
            padding: var(--space-xl) 0 var(--space-md);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
            width: 150%; height: 100%;
            background: radial-gradient(ellipse at top, rgba(181, 101, 216, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 0.85rem; color: var(--muted); margin-bottom: 1.5rem;
            display: flex; justify-content: center; gap: 0.5rem; flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--muted); }
        .breadcrumb a:hover { color: var(--accent); }
        .page-hero h1 {
            font-size: 2.5rem; color: var(--text); margin-bottom: 1rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .meta-chips { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; margin-top: 1.5rem; }
        .chip {
            background-color: var(--surface); border: 1px solid rgba(181, 101, 216, 0.3);
            color: var(--accent2); font-size: 0.8rem; padding: 0.25rem 0.75rem;
            border-radius: 20px; font-weight: 500; letter-spacing: 0.5px; text-transform: uppercase;
        }

        /* PAGE LAYOUT (Main Content + Sidebar) */
        .page-layout {
            display: grid; grid-template-columns: 1fr; gap: var(--space-lg);
            padding: var(--space-md) var(--space-sm) var(--space-xl);
        }

        /* CONTENT AREA */
        .content-area {
            background: rgba(43, 16, 48, 0.4);
            border-radius: var(--radius-lg);
            padding: var(--space-md);
            border: 1px solid rgba(255,255,255,0.05);
            box-shadow: var(--shadow-subtle);
        }

        .intro-block {
            background: linear-gradient(135deg, var(--surface) 0%, rgba(43, 16, 48, 0) 100%);
            border-left: 4px solid var(--accent);
            padding: 2rem; border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: var(--space-lg);
        }
        .intro-block p {
            font-family: var(--font-display); font-size: 1.15rem; font-style: italic;
            color: var(--text); margin-bottom: 0; line-height: 1.8;
        }

        .content-section { margin-bottom: var(--space-lg); }
        .content-section h2 {
            font-size: 1.75rem; color: var(--accent); margin-bottom: 1.5rem;
            display: flex; align-items: center; gap: 1rem;
        }
        .content-section h2::after {
            content: ''; flex: 1; height: 1px;
            background: linear-gradient(to right, rgba(181, 101, 216, 0.5), transparent);
        }
        .content-section p a {
            color: var(--accent2); border-bottom: 1px dashed var(--accent2); font-weight: 500;
        }
        .content-section p a:hover { color: var(--accent); border-bottom-color: var(--accent); }

        /* Lists */
        .curtain-list {
            list-style: none; padding-left: 0; margin-bottom: 1.5rem;
        }
        .curtain-list li {
            position: relative; padding-left: 2rem; margin-bottom: 1rem; color: var(--text);
        }
        .curtain-list li::before {
            content: '✦'; position: absolute; left: 0; top: 0;
            color: var(--accent); font-size: 1.2rem; line-height: 1.4;
        }

        /* FAQ Section */
        .faq-section h2 {
            font-size: 1.75rem; color: var(--accent); margin-bottom: 1.5rem; text-align: center;
        }
        .faq-wrapper { display: flex; flex-direction: column; gap: 1rem; }
        details {
            background-color: var(--surface); border: 1px solid rgba(181, 101, 216, 0.2);
            border-radius: var(--radius-md); overflow: hidden; transition: var(--transition);
        }
        details[open] { border-color: var(--accent); box-shadow: 0 0 10px rgba(240, 196, 25, 0.1); }
        summary {
            padding: 1.25rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between;
            align-items: center; list-style: none; font-family: var(--font-display); font-size: 1.1rem;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+'; color: var(--accent); font-size: 1.5rem; font-weight: 300; transition: transform 0.3s;
        }
        details[open] summary::after { transform: rotate(45deg); }
        details p { padding: 0 1.25rem 1.25rem; margin-bottom: 0; color: var(--muted); border-top: 1px solid rgba(255,255,255,0.05); padding-top: 1rem; }

        /* SIDEBAR (Related Links) */
        .sidebar { display: flex; flex-direction: column; gap: var(--space-md); }
        .nav-card {
            background-color: var(--surface); border-radius: var(--radius-md);
            padding: 2rem; border-top: 3px solid var(--accent2);
            box-shadow: var(--shadow-subtle); position: sticky; top: 100px;
        }
        .nav-card h3 {
            color: var(--text); font-size: 1.25rem; margin-bottom: 1.5rem; text-align: center;
            text-transform: uppercase; letter-spacing: 1px; font-family: var(--font-body); font-weight: 600;
        }
        .nav-card-links { display: flex; flex-direction: column; gap: 0.75rem; }
        .nav-card-links a {
            display: block; padding: 1rem; background-color: rgba(23, 8, 18, 0.5);
            border-radius: var(--radius-sm); color: var(--muted); font-weight: 500;
            border-left: 2px solid transparent; transition: var(--transition);
        }
        .nav-card-links a:hover {
            background-color: rgba(181, 101, 216, 0.1); color: var(--text);
            border-left-color: var(--accent); transform: translateX(5px);
        }

        /* GRAND CTA */
        .grand-cta {
            background: linear-gradient(45deg, #2b1030 0%, #170812 100%);
            border-top: 1px solid rgba(240, 196, 25, 0.3);
            border-bottom: 1px solid rgba(240, 196, 25, 0.3);
            padding: var(--space-xl) 0; text-align: center; position: relative;
        }
        .grand-cta::before, .grand-cta::after {
            content: '✧'; position: absolute; color: var(--accent); font-size: 2rem; opacity: 0.5; top: 50%; transform: translateY(-50%);
        }
        .grand-cta::before { left: 10%; }
        .grand-cta::after { right: 10%; }
        .grand-cta h2 { font-size: 2.25rem; color: var(--accent); margin-bottom: 1rem; }
        .grand-cta p { font-size: 1.1rem; color: var(--muted); max-width: 600px; margin: 0 auto 2rem; }
        .cta-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

        /* FOOTER (A2) */
        footer { background-color: #0f050b; padding: var(--space-xl) 0 var(--space-md); border-top: 1px solid rgba(255,255,255,0.05); }
        .footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-bottom: 3rem; }
        .footer-brand h2 { color: var(--accent); font-size: 2rem; margin-bottom: 1rem; }
        .footer-brand p { color: var(--muted); font-size: 0.9rem; max-width: 300px; }
        .footer-links-group { display: flex; flex-direction: column; gap: 0.75rem; }
        .footer-links-group a { color: var(--muted); font-size: 0.9rem; }
        .footer-links-group a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; color: var(--muted); font-size: 0.8rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.05); }

        /* Media Queries */
        @media (min-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
            .page-hero h1 { font-size: 3rem; }
            .content-area { padding: var(--space-lg); }
        }
        @media (min-width: 1024px) {
            .nav-links, .header-actions { display: flex; }
            .mobile-menu-btn { display: none; }
            .page-layout { grid-template-columns: 2fr 1fr; }
            .grand-cta::before { left: 20%; }
            .grand-cta::after { right: 20%; }
        }
        @media (max-width: 390px) {
            .page-hero h1 { font-size: 2rem; }
            .intro-block { padding: 1.5rem 1rem; }
            .content-area { padding: 1.5rem 1rem; }
            .cta-actions { flex-direction: column; width: 100%; padding: 0 1rem; }
            .cta-actions .btn { width: 100%; }
        }


/* 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; }