:root {
            --bg: #0a0a1c;
            --surface: #161638;
            --surface-alt: #1a1a42;
            --accent: #c084fc;
            --accent2: #818cf8;
            --text: #f2f0ff;
            --muted: #a5a1c9;
            --font-display: 'Teko', sans-serif;
            --font-body: 'Nunito', sans-serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s ease;
        }

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

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* Typography */
        h1, h2, h3, .logo, .footer-brand, .section-number {
            font-family: var(--font-display);
            text-transform: uppercase;
            line-height: 1.1;
        }

        h1 {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            background: linear-gradient(135deg, var(--accent), var(--accent2));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }

        h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            color: var(--accent2);
            margin-bottom: 1.5rem;
            border-bottom: 2px solid rgba(129, 140, 248, 0.2);
            padding-bottom: 0.5rem;
            display: inline-block;
        }

        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }

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

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.8rem 2rem;
            font-family: var(--font-body);
            font-weight: 800;
            text-transform: uppercase;
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            min-height: 44px;
            min-width: 120px;
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background: linear-gradient(90deg, var(--accent), var(--accent2));
            color: var(--bg);
        }

        .btn-primary:hover {
            box-shadow: 0 0 20px rgba(192, 132, 252, 0.4);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--accent2);
            border: 2px solid var(--accent2);
        }

        .btn-secondary:hover {
            background: rgba(129, 140, 248, 0.1);
            color: var(--text);
            border-color: var(--text);
        }

        /* HEADER (From Part A) */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(10, 10, 28, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            font-size: 2.2rem;
            color: var(--text);
            font-weight: 700;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-links {
            display: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: var(--text);
            font-weight: 600;
            font-size: 0.95rem;
        }
        .nav-links a:hover {
            color: var(--accent);
        }
        .header-actions {
            display: none;
            gap: 1rem;
        }
        .mobile-toggle {
            display: block;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            min-height: 44px;
            min-width: 44px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--surface);
            padding: 1rem;
            position: absolute;
            top: 70px;
            left: 0;
            right: 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu .nav-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .mobile-menu .header-actions {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        @media (min-width: 1024px) {
            .nav-links, .header-actions { display: flex; align-items: center; }
            .mobile-toggle { display: none; }
            .mobile-menu { display: none !important; }
        }

        /* HERO BANNER */
        .hero {
            padding: 10rem 1rem 5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background:
                radial-gradient(circle at 15% 30%, rgba(192, 132, 252, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 85% 80%, rgba(129, 140, 248, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(22, 22, 56, 0.8) 0%, var(--bg) 100%);
            z-index: -1;
        }

        .breadcrumb {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            font-weight: 600;
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }

        .chip {
            background: rgba(22, 22, 56, 0.6);
            backdrop-filter: blur(4px);
            padding: 0.6rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            border: 1px solid rgba(192, 132, 252, 0.3);
            color: var(--text);
            font-weight: 700;
            display: inline-flex;
            align-items: center;
        }

        /* MAIN CONTENT */
        .content-area {
            max-width: 900px;
            padding: 4rem 1rem;
            display: flex;
            flex-direction: column;
            gap: 5rem;
        }

        .intro-block {
            font-size: 1.15rem;
            padding: 2.5rem;
            background: var(--surface);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--text);
            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: 8rem;
            color: rgba(192, 132, 252, 0.05);
            line-height: 1;
            font-style: normal;
        }

        .section-wrapper {
            position: relative;
        }

        .section-number {
            position: absolute;
            top: -3.5rem;
            left: -1rem;
            font-size: 7rem;
            color: rgba(255,255,255,0.02);
            z-index: -1;
            user-select: none;
        }

        .text-content a {
            font-weight: 700;
            border-bottom: 1px dashed var(--accent);
        }
        .text-content a:hover {
            color: var(--text);
            border-bottom-color: var(--text);
        }

        /* Features List Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .feature-card {
            background: var(--surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid rgba(129, 140, 248, 0.15);
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }

        .feature-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: rgba(192, 132, 252, 0.1);
            color: var(--accent);
            border-radius: 50%;
            font-size: 1rem;
            flex-shrink: 0;
        }

        /* Security Box Special Styling */
        .security-box {
            background: linear-gradient(145deg, var(--surface), var(--surface-alt));
            padding: 3rem;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(192, 132, 252, 0.3);
            position: relative;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(0,0,0,0.25);
        }

        .security-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(192, 132, 252, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        /* FAQ Styling */
        .faq-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 2rem;
        }

        details {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.05);
            overflow: hidden;
        }

        summary {
            padding: 1.5rem;
            font-family: var(--font-body);
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--accent2);
            transition: var(--transition);
        }

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

        summary::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 400;
            transition: transform 0.3s;
            color: var(--muted);
        }

        details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent);
        }

        details[open] summary {
            border-bottom: 1px solid rgba(255,255,255,0.05);
            color: var(--accent);
            background: rgba(255,255,255,0.02);
        }

        details p {
            padding: 1.5rem;
            margin: 0;
            color: var(--muted);
            background: rgba(0,0,0,0.1);
        }

        /* Related Pages */
        .related-section {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px dashed rgba(255,255,255,0.1);
        }

        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
            justify-content: center;
        }

        .related-link {
            display: inline-flex;
            padding: 0.75rem 1.5rem;
            background: rgba(129, 140, 248, 0.05);
            border: 1px solid rgba(129, 140, 248, 0.3);
            border-radius: 50px;
            color: var(--text);
            text-decoration: none;
            font-weight: 700;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .related-link:hover {
            background: var(--accent2);
            color: var(--bg);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(129, 140, 248, 0.3);
        }

        /* Grand CTA */
        .cta-grand {
            text-align: center;
            padding: 5rem 2rem;
            background:
                linear-gradient(to right, rgba(22, 22, 56, 0.95), rgba(26, 26, 66, 0.95)),
                repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(192, 132, 252, 0.03) 10px, rgba(192, 132, 252, 0.03) 20px);
            border-radius: var(--radius-lg);
            border: 2px solid rgba(129, 140, 248, 0.3);
            margin-top: 2rem;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            position: relative;
            overflow: hidden;
        }

        .cta-grand::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent2));
        }

        .cta-grand h2 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            border: none;
            margin-bottom: 1rem;
            color: var(--text);
        }

        .cta-grand p {
            font-size: 1.15rem;
            color: var(--muted);
            margin-bottom: 2.5rem;
            max-width: 600px;
            margin-inline: auto;
        }

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

        /* FOOTER (From Part A) */
        footer {
            background: var(--surface);
            padding: 5rem 0 2rem;
            border-top: 1px solid rgba(255,255,255,0.05);
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
        }
        .footer-brand {
            font-size: 3rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .footer-info p {
            color: var(--muted);
            font-size: 1rem;
            max-width: 350px;
        }
        .footer-links-group h4 {
            font-family: var(--font-body);
            color: var(--text);
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            font-weight: 800;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .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;
            color: var(--muted);
            font-size: 0.9rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .content-area { gap: 4rem; padding: 3rem 1rem; }
            .security-box { padding: 2rem; }
            .cta-grand { padding: 3rem 1.5rem; }
            .section-number { font-size: 5rem; top: -2.5rem; left: 0; }
        }
        @media (max-width: 390px) {
            .meta-chips { flex-direction: column; align-items: center; }
            .chip { width: 100%; justify-content: center; }
            .cta-actions { flex-direction: column; }
            .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; }