:root {
            --bg: #050e16;
            --surface: #0c1e2e;
            --surface-hover: #132a40;
            --accent: #ffc857;
            --accent-hover: #ffda85;
            --accent2: #22d3ee;
            --text: #f0faff;
            --muted: #8fadc2;
            --font-head: 'Montserrat', sans-serif;
            --font-body: 'Lora', serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 999px;
            --transition: all 0.3s ease;
        }

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

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4, .font-head {
            font-family: var(--font-head);
            line-height: 1.3;
            color: var(--text);
        }

        a {
            color: var(--accent2);
            text-decoration: none;
            transition: var(--transition);
        }

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

        p {
            margin-bottom: 1.25rem;
        }

        p:last-child {
            margin-bottom: 0;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            font-family: var(--font-head);
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            text-align: center;
            border: none;
            min-height: 44px;
            min-width: 44px;
            transition: var(--transition);
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 200, 87, 0.3);
        }

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

        .btn-secondary:hover {
            background-color: var(--accent2);
            color: var(--bg);
            transform: translateY(-2px);
        }

        /* Header (Part A1 styling) */
        header {
            background-color: rgba(5, 14, 22, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(143, 173, 194, 0.1);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo {
            font-family: var(--font-head);
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .logo span {
            color: var(--accent);
        }

        .nav-links {
            display: none;
            gap: 24px;
        }

        .nav-links a {
            font-family: var(--font-head);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

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

        .nav-actions {
            display: none;
            gap: 12px;
        }

        .mobile-toggle {
            display: block;
            background: none;
            border: none;
            color: var(--text);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }

        /* Mobile Menu Active State */
        @media (max-width: 1023px) {
            header.nav-active .nav-links {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--surface);
                padding: 20px;
                border-bottom: 1px solid rgba(143, 173, 194, 0.1);
            }
            header.nav-active .nav-actions {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: calc(70px + 240px);
                left: 0;
                right: 0;
                background-color: var(--surface);
                padding: 0 20px 20px;
                border-bottom: 1px solid rgba(143, 173, 194, 0.2);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
        }

        /* Hero Banner */
        .hero-banner {
            padding: 140px 0 80px;
            position: relative;
            text-align: center;
            background: radial-gradient(circle at 50% 0%, var(--surface) 0%, var(--bg) 80%);
            overflow: hidden;
        }

        /* Carnival/Bay Decorations */
        .hero-banner::before, .hero-banner::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            z-index: 0;
        }
        .hero-banner::before {
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            top: -50px;
            left: -100px;
        }
        .hero-banner::after {
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 200, 87, 0.1) 0%, transparent 70%);
            bottom: -100px;
            right: -150px;
        }

        .banner-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .breadcrumb {
            font-family: var(--font-head);
            font-size: 12px;
            color: var(--muted);
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: inline-block;
            background: rgba(12, 30, 46, 0.6);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(143, 173, 194, 0.2);
        }

        .hero-banner h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 24px;
            text-shadow: 0 4px 12px rgba(0,0,0,0.3);
        }

        .meta-chips {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .chip {
            font-family: var(--font-head);
            font-size: 12px;
            font-weight: 600;
            background-color: var(--surface);
            color: var(--accent2);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(34, 211, 238, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Main Article Content */
        .main-article {
            padding: 0 0 80px;
            max-width: 900px;
        }

        /* Intro Box */
        .intro-box {
            background: linear-gradient(135deg, var(--surface) 0%, rgba(12, 30, 46, 0.5) 100%);
            border-left: 4px solid var(--accent);
            padding: 32px;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            margin-bottom: 48px;
            position: relative;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .intro-box p {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text);
        }

        /* Content Sections (Cards) */
        .content-grid {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .content-card {
            background-color: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            border: 1px solid rgba(143, 173, 194, 0.05);
            transition: var(--transition);
        }

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.25);
            border-color: rgba(34, 211, 238, 0.2);
        }

        .card-badge {
            position: absolute;
            top: -20px;
            left: 32px;
            background: linear-gradient(135deg, var(--accent2) 0%, #0ea5e9 100%);
            color: var(--bg);
            font-family: var(--font-head);
            font-weight: 800;
            font-size: 20px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(34, 211, 238, 0.4);
            border: 4px solid var(--bg);
        }

        .content-card h2 {
            font-size: 22px;
            margin-bottom: 20px;
            color: var(--text);
            padding-top: 12px;
        }

        .content-card a {
            color: var(--accent);
            font-weight: 600;
            border-bottom: 1px dashed var(--accent);
        }
        .content-card a:hover {
            color: var(--accent2);
            border-bottom-color: var(--accent2);
        }

        /* Custom List in Section 5 */
        .custom-list {
            list-style: none;
            margin-top: 20px;
            background: rgba(5, 14, 22, 0.4);
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .custom-list li {
            position: relative;
            padding-left: 32px;
            margin-bottom: 12px;
            color: var(--text);
        }

        .custom-list li:last-child {
            margin-bottom: 0;
        }

        .custom-list li::before {
            content: '★';
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent);
            font-size: 14px;
        }

        /* FAQ Section */
        .faq-section {
            margin-top: 64px;
        }

        .faq-section h2 {
            font-size: 28px;
            text-align: center;
            margin-bottom: 32px;
            color: var(--accent2);
        }

        details {
            background-color: var(--surface);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            border: 1px solid rgba(143, 173, 194, 0.1);
        }

        summary {
            padding: 20px 24px;
            font-family: var(--font-head);
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

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

        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 24px;
            font-weight: 400;
            transition: transform 0.3s ease;
        }

        details[open] summary {
            background-color: rgba(34, 211, 238, 0.05);
            color: var(--accent2);
        }

        details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent2);
        }

        details p {
            padding: 0 24px 24px;
            color: var(--muted);
            margin: 0;
            border-top: 1px solid rgba(143, 173, 194, 0.1);
            padding-top: 16px;
        }

        /* Related Pages Creative Block */
        .related-nav {
            margin-top: 64px;
            padding: 48px 32px;
            background: linear-gradient(to right, var(--surface), rgba(12, 30, 46, 0.4), var(--surface));
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px dashed rgba(255, 200, 87, 0.2);
        }

        .related-nav h2 {
            font-size: 24px;
            margin-bottom: 32px;
            color: var(--text);
        }

        .nav-cards-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .nav-card-item {
            background-color: var(--bg);
            border: 1px solid rgba(143, 173, 194, 0.15);
            padding: 16px 24px;
            border-radius: var(--radius-sm);
            font-family: var(--font-head);
            font-weight: 700;
            color: var(--muted);
            text-transform: lowercase;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 200px;
        }

        .nav-card-item:hover {
            background-color: var(--accent2);
            color: var(--bg);
            border-color: var(--accent2);
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(34, 211, 238, 0.2);
        }

        /* Final CTA */
        .final-cta {
            margin-top: 80px;
            padding: 64px 20px;
            background: radial-gradient(circle at center, var(--surface) 0%, var(--bg) 100%);
            text-align: center;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
            position: relative;
        }

        .final-cta::before {
            content: '';
            position: absolute;
            top: 0; left: 50%;
            transform: translateX(-50%);
            width: 100px; height: 4px;
            background: var(--accent);
            border-radius: 0 0 4px 4px;
        }

        .final-cta h2 {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .final-cta p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer (Part A2 styling) */
        footer {
            background-color: #03080c;
            padding: 60px 0 20px;
            border-top: 1px solid rgba(143, 173, 194, 0.1);
        }

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

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-tagline {
            color: var(--muted);
            font-size: 14px;
            max-width: 300px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 24px;
        }

        .footer-links div {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 14px;
            font-family: var(--font-head);
            font-weight: 600;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(143, 173, 194, 0.1);
            color: var(--muted);
            font-size: 14px;
        }

        /* Breakpoints */
        @media (min-width: 768px) {
            .hero-banner h1 { font-size: 42px; }
            .intro-box p { font-size: 20px; }
            .footer-grid { grid-template-columns: 300px 1fr; }
        }

        @media (min-width: 1024px) {
            .nav-toggle { display: none; }
            .mobile-toggle { display: none; }
            .nav-links { display: flex; }
            .nav-actions { display: flex; }
            .hero-banner h1 { font-size: 52px; }
            .content-card { padding: 40px; }
        }


/* 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; }