:root {
            --bg: #0c0614;
            --surface: #1a0f28;
            --surface-alt: #231536;
            --accent: #c084fc;
            --accent2: #f472b6;
            --text: #faf5ff;
            --muted: #ab93b0;
            --border: rgba(192, 132, 252, 0.2);
            --font-display: 'Bebas Neue', sans-serif;
            --font-body: 'Sora', sans-serif;
            --shadow-orchid: 0 8px 32px rgba(192, 132, 252, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent2);
        }

        h1, h2, h3, .brand-logo, .footer-brand h2 {
            font-family: var(--font-display);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* HEADER */
        header {
            background: rgba(12, 6, 20, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 15px 0;
        }

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

        .brand-logo {
            font-size: 2rem;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .nav-links {
            display: flex;
            gap: 25px;
        }

        .nav-links a {
            color: var(--text);
            font-size: 0.9rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

        .header-ctas {
            display: flex;
            gap: 15px;
        }

        .btn {
            padding: 10px 24px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            text-align: center;
            display: inline-block;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent2));
            color: var(--bg);
            border: none;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--accent2), var(--accent));
            color: var(--bg);
            box-shadow: var(--shadow-orchid);
        }

        .btn-secondary {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
        }

        .btn-secondary:hover {
            background: rgba(192, 132, 252, 0.1);
            color: var(--text);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* HERO SECTION */
        .hero {
            padding: 80px 0 60px;
            background: radial-gradient(circle at top center, rgba(192, 132, 252, 0.1) 0%, var(--bg) 70%);
            text-align: center;
            border-bottom: 1px solid rgba(192, 132, 252, 0.05);
        }

        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 20px;
            display: block;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            background: linear-gradient(to right, var(--text), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }

        .chip {
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .chip::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent2);
        }

        /* MAIN CONTENT AREA */
        .content-area {
            padding: 60px 0;
            max-width: 800px;
            margin: 0 auto;
        }

        .intro-block {
            background: var(--surface);
            padding: 40px;
            border-radius: 12px;
            border-left: 4px solid var(--accent);
            margin-bottom: 60px;
            font-size: 1.1rem;
            color: var(--text);
            box-shadow: var(--shadow-orchid);
        }

        .topic-section {
            margin-bottom: 50px;
            position: relative;
        }

        .topic-section h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .topic-section h2::before {
            content: '';
            display: block;
            width: 30px;
            height: 2px;
            background: var(--accent2);
        }

        .topic-section p {
            color: var(--muted);
            margin-bottom: 15px;
            font-size: 1rem;
        }

        .topic-section a {
            color: var(--accent2);
            font-weight: 600;
            border-bottom: 1px dashed var(--accent2);
        }

        .topic-section a:hover {
            color: var(--text);
            border-bottom-color: var(--text);
        }

        .custom-list {
            list-style: none;
            margin: 20px 0;
            padding: 0;
        }

        .custom-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 12px;
            color: var(--muted);
        }

        .custom-list li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 1.2rem;
            line-height: 1;
        }

        /* FAQ ACCORDION */
        .faq-wrapper {
            margin-top: 80px;
        }

        .faq-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 40px;
            color: var(--text);
        }

        details {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        summary {
            padding: 20px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            font-family: var(--font-body);
        }

        summary::-webkit-details-marker {
            display: none;
        }

        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            font-weight: 300;
            transition: var(--transition);
        }

        details[open] summary::after {
            content: '−';
            color: var(--accent2);
        }

        details p {
            padding: 0 20px 20px;
            color: var(--muted);
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 15px;
        }

        /* RELATED LINKS */
        .related-links {
            margin: 80px 0;
            padding: 40px;
            background: var(--surface-alt);
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .related-links h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: var(--accent);
            text-align: center;
        }

        .links-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }

        .links-grid a {
            background: var(--bg);
            padding: 10px 20px;
            border-radius: 30px;
            border: 1px solid var(--border);
            font-size: 0.9rem;
            color: var(--muted);
            text-transform: capitalize;
        }

        .links-grid a:hover {
            background: var(--accent);
            color: var(--bg);
            border-color: var(--accent);
        }

        /* GRAND CTA */
        .grand-cta {
            background: linear-gradient(135deg, var(--surface), #2a1b3d);
            padding: 60px 20px;
            text-align: center;
            border-radius: 16px;
            margin-bottom: 80px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-orchid);
        }

        .grand-cta::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(244, 114, 182, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        .grand-cta h2 {
            font-size: 3rem;
            margin-bottom: 15px;
            color: var(--text);
        }

        .grand-cta p {
            color: var(--muted);
            margin-bottom: 30px;
            font-size: 1.1rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }

        /* FOOTER */
        footer {
            background: var(--surface);
            padding: 60px 0 20px;
            border-top: 1px solid var(--border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h2 {
            font-size: 2.5rem;
            color: var(--text);
            margin-bottom: 15px;
            text-transform: uppercase;
        }

        .footer-brand p {
            color: var(--muted);
            font-size: 0.9rem;
            max-width: 300px;
        }

        .footer-links h3 {
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.85rem;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            color: var(--muted);
            font-size: 0.8rem;
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .footer-links ul { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .mobile-toggle { display: block; }

            .nav-links, .header-ctas {
                display: none;
                width: 100%;
                flex-direction: column;
                text-align: center;
                padding: 15px 0;
            }

            .nav-links.active, .header-ctas.active {
                display: flex;
            }

            .header-inner {
                flex-wrap: wrap;
            }

            .hero h1 { font-size: 2.5rem; }
            .topic-section h2 { font-size: 1.5rem; }
            .grand-cta h2 { font-size: 2rem; }

            .footer-grid { grid-template-columns: 1fr; }
            .footer-links ul { grid-template-columns: 1fr; }

            .cta-buttons { flex-direction: column; }
            .btn { min-height: 44px; display: flex; align-items: center; justify-content: center; }
        }

        @media (max-width: 390px) {
            .intro-block { padding: 20px; font-size: 1rem; }
            .meta-chips { flex-direction: column; align-items: center; }
            .hero { padding: 40px 0; }
        }


/* 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; }