:root {
            --bg: #061218;
            --surface: #0d2230;
            --surface-hover: #132f42;
            --accent: #22d3ee;
            --accent-glow: rgba(34, 211, 238, 0.3);
            --accent2: #a3e635;
            --text: #f0faff;
            --muted: #8fadb8;
            --border: #1a3a4f;

            --font-display: 'Chakra Petch', sans-serif;
            --font-body: 'Manrope', sans-serif;

            --container-w: 1200px;
            --radius: 12px;
            --radius-fluid: 24px 8px 24px 8px;
            --transition: all 0.3s ease;
        }

        * { 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;
            overflow-x: hidden;
            background-image:
                radial-gradient(circle at 15% 50%, rgba(34, 211, 238, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 85% 30%, rgba(163, 230, 53, 0.02) 0%, transparent 50%);
        }

        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent2); text-shadow: 0 0 8px var(--accent-glow); }

        h1, h2, h3, .logo { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* --- HEADER (Verbatim styling) --- */
        header {
            background: rgba(6, 18, 24, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span { color: var(--accent); }
        .nav-links {
            display: flex;
            gap: 24px;
        }
        .nav-links a {
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
        }
        .nav-links a:hover { color: var(--accent); }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* --- HERO BANNER --- */
        .hero {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, rgba(13, 34, 48, 0.5) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0.5;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 4px 20px rgba(34, 211, 238, 0.1);
        }
        .meta-chips {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .chip {
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.2);
            color: var(--accent);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .chip::before {
            content: '';
            display: inline-block;
            width: 6px; height: 6px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent);
        }

        /* --- MAIN CONTENT --- */
        .main-layout {
            padding: 60px 0;
            display: grid;
            gap: 60px;
        }

        .intro-block {
            background: var(--surface);
            padding: 30px;
            border-radius: var(--radius-fluid);
            border-left: 4px solid var(--accent);
            font-size: 1.1rem;
            color: #e0f2fe;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            position: relative;
        }
        .intro-block::after {
            content: '"';
            position: absolute;
            top: -10px; right: 20px;
            font-family: var(--font-display);
            font-size: 6rem;
            color: rgba(34, 211, 238, 0.05);
            line-height: 1;
        }

        .content-section h2 {
            font-size: 2rem;
            margin-bottom: 24px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .content-section h2::before {
            content: '';
            display: block;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .content-section p {
            margin-bottom: 20px;
            color: var(--muted);
            font-size: 1.05rem;
        }
        .content-section p a {
            font-weight: 600;
            border-bottom: 1px dashed var(--accent);
        }
        .content-section p a:hover {
            border-bottom-style: solid;
        }

        .feature-box {
            background: rgba(13, 34, 48, 0.6);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            margin: 30px 0;
        }
        .feature-list {
            list-style: none;
            display: grid;
            gap: 16px;
        }
        .feature-list li {
            position: relative;
            padding-left: 36px;
            color: #e0f2fe;
        }
        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0; top: 0;
            width: 24px; height: 24px;
            background: rgba(163, 230, 53, 0.1);
            color: var(--accent2);
            border: 1px solid rgba(163, 230, 53, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: bold;
        }

        /* --- FAQ SECTION --- */
        .faq-container {
            display: grid;
            gap: 16px;
        }
        details {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        details[open] {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
        }
        summary {
            padding: 20px;
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            font-weight: 400;
            transition: transform 0.3s ease;
        }
        details[open] summary::after {
            transform: rotate(45deg);
        }
        details p {
            padding: 0 20px 20px;
            margin: 0;
            color: var(--muted);
        }

        /* --- RELATED PAGES --- */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 16px;
            margin-top: 20px;
        }
        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-family: var(--font-display);
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .related-card::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0; width: 4px;
            background: var(--accent);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }
        .related-card:hover {
            background: var(--surface-hover);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .related-card:hover::before {
            transform: scaleY(1);
        }
        .related-card svg {
            width: 20px; height: 20px;
            stroke: var(--muted);
            transition: var(--transition);
        }
        .related-card:hover svg {
            stroke: var(--accent);
            transform: translateX(4px);
        }

        /* --- CTA SECTION --- */
        .cta-box {
            background: linear-gradient(135deg, var(--surface) 0%, #0a1f2e 100%);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: 24px;
            padding: 50px 30px;
            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(34,211,238,0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 2.2rem;
            margin-bottom: 16px;
            color: #fff;
        }
        .cta-box p {
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto 30px;
            font-size: 1.1rem;
        }
        .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 8px;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            min-height: 48px;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--accent);
            color: #000;
            box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
        }
        .btn-primary:hover {
            background: #fff;
            color: #000;
            box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 2px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* --- FOOTER (Verbatim styling) --- */
        footer {
            background: #040b10;
            border-top: 1px solid var(--border);
            padding: 60px 0 20px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: var(--muted);
            margin-top: 16px;
            font-size: 0.9rem;
            max-width: 300px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .footer-links div {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 0.9rem;
        }
        .footer-links a:hover { color: var(--accent); }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            color: var(--muted);
            font-size: 0.85rem;
        }

        /* --- RESPONSIVE --- */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-links { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px; left: 0; right: 0;
                background: var(--surface);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .nav-links.active { display: flex; }
            .mobile-toggle { display: block; }

            .footer-links { grid-template-columns: 1fr 1fr; }
            .hero h1 { font-size: 2rem; }
            .content-section h2 { font-size: 1.6rem; }
            .main-layout { gap: 40px; padding: 40px 0; }
            .cta-box { padding: 40px 20px; }
            .btn { width: 100%; }
        }
        @media (max-width: 390px) {
            .footer-links { grid-template-columns: 1fr; }
            .meta-chips { flex-direction: column; align-items: flex-start; }
            .intro-block { padding: 20px; }
        }


/* 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; }