:root {
            --bg: #04140f;
            --surface: #0a241b;
            --surface-hover: #0e3025;
            --accent: #f0b429;
            --accent-hover: #d9a124;
            --accent2: #2dd4a7;
            --text: #eefbf5;
            --muted: #8fb3a5;
            --border: rgba(143, 179, 165, 0.15);
            --font-display: 'Teko', sans-serif;
            --font-body: 'Nunito', sans-serif;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        h1, h2, h3, h4, .logo, .footer-brand {
            font-family: var(--font-display);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        h1 { font-size: 2.5rem; color: var(--accent); margin-bottom: 1rem; }
        h2 { font-size: 2rem; color: var(--text); margin-bottom: 1.25rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
        h3 { font-size: 1.5rem; color: var(--accent2); margin-bottom: 0.75rem; }

        p { margin-bottom: 1.25rem; }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* --- HEADER STYLES --- */
        header {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow);
        }

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

        .logo {
            font-size: 2.25rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 1px;
        }

        .menu-toggle {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            width: 30px;
            height: 21px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0;
            z-index: 101;
        }

        .menu-toggle span {
            width: 100%;
            height: 3px;
            background-color: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        #main-nav {
            display: none;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        #main-nav.active {
            display: block;
        }

        #main-nav ul {
            list-style: none;
            padding: 1rem 0;
        }

        #main-nav li {
            text-align: center;
        }

        #main-nav a {
            display: block;
            padding: 0.75rem 1.25rem;
            color: var(--text);
            font-weight: 600;
            font-size: 1.1rem;
        }

        #main-nav a:hover {
            color: var(--accent);
            background-color: var(--surface-hover);
        }

        /* --- HERO & BREADCRUMB --- */
        .hero {
            padding: 3rem 0;
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }

        .chip {
            background-color: rgba(45, 212, 167, 0.1);
            color: var(--accent2);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            border: 1px solid rgba(45, 212, 167, 0.2);
            display: inline-flex;
            align-items: center;
        }

        .intro-quote {
            font-size: 1.1rem;
            color: var(--text);
            background-color: var(--surface);
            padding: 1.5rem;
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow);
            line-height: 1.7;
        }

        /* --- MAIN CONTENT --- */
        .content-area {
            padding: 3rem 0;
        }

        .section-block {
            margin-bottom: 3.5rem;
        }

        /* Data List / Definition Cards */
        .data-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            margin: 1.5rem 0;
        }

        .data-card {
            background-color: var(--surface);
            padding: 1.25rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }

        .data-card::before {
            content: '';
            display: block;
            width: 8px;
            height: 8px;
            background-color: var(--accent);
            border-radius: 50%;
            margin-top: 0.4rem;
            flex-shrink: 0;
        }

        .data-card p {
            margin: 0;
            font-size: 0.95rem;
        }

        /* Checklist Style */
        .checklist-group {
            list-style: none;
            margin: 1.5rem 0;
            background-color: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .checklist-group li {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .checklist-group li:last-child {
            border-bottom: none;
        }

        .checklist-group li::before {
            content: '✓';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background-color: rgba(45, 212, 167, 0.15);
            color: var(--accent2);
            border-radius: 50%;
            font-weight: bold;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        /* Alert/Notice Box */
        .notice-box {
            background-color: rgba(240, 180, 41, 0.05);
            border: 1px solid rgba(240, 180, 41, 0.2);
            padding: 1.25rem;
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
        }

        .notice-box p:last-child {
            margin-bottom: 0;
        }

        /* --- RELATED LINKS --- */
        .related-nav {
            background-color: var(--surface);
            padding: 2rem;
            border-radius: var(--radius-md);
            border: 1px dashed var(--muted);
            margin: 4rem 0;
            text-align: center;
        }

        .related-nav h3 {
            color: var(--text);
            margin-bottom: 1.5rem;
        }

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

        .related-links-grid a {
            background-color: var(--bg);
            color: var(--text);
            padding: 0.75rem 1.5rem;
            border-radius: 30px;
            border: 1px solid var(--border);
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .related-links-grid a::after {
            content: '→';
            color: var(--accent);
            transition: transform 0.2s ease;
        }

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

        .related-links-grid a:hover::after {
            transform: translateX(4px);
        }

        /* --- FAQ SECTION --- */
        .faq-section {
            padding: 3rem 0;
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-section h2 {
            text-align: center;
            border-bottom: none;
            margin-bottom: 2rem;
        }

        details {
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }

        summary {
            padding: 1.25rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--accent);
            font-size: 1.05rem;
        }

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

        summary::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--muted);
            line-height: 1;
            transition: transform 0.3s ease;
        }

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

        details p {
            padding: 0 1.25rem 1.25rem;
            margin: 0;
            color: var(--muted);
        }

        /* --- CTA SECTION --- */
        .cta-section {
            padding: 4rem 0;
            text-align: center;
            background: radial-gradient(circle at center, var(--surface) 0%, var(--bg) 100%);
        }

        .cta-box {
            max-width: 800px;
            margin: 0 auto;
            padding: 3rem 2rem;
            background: linear-gradient(135deg, rgba(240, 180, 41, 0.1) 0%, rgba(10, 36, 27, 0.8) 100%);
            border: 1px solid rgba(240, 180, 41, 0.2);
            border-radius: var(--radius-lg);
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }

        .cta-box h2 {
            border: none;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--accent);
        }

        .cta-box p {
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 2rem;
        }

        .btn-group {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            border-radius: var(--radius-sm);
            font-family: var(--font-display);
            font-size: 1.25rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            min-width: 160px;
            min-height: 44px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            border: 2px solid var(--accent);
        }

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

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

        .btn-secondary:hover {
            border-color: var(--accent2);
            color: var(--accent2);
        }

        /* --- FOOTER STYLES --- */
        footer {
            background-color: var(--surface);
            padding: 4rem 0 2rem;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .footer-brand {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }

        .footer-tagline {
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 0.95rem;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem 1.5rem;
            margin-bottom: 2rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .footer-links a {
            color: var(--text);
            font-size: 0.9rem;
        }

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

        .copyright {
            color: var(--muted);
            font-size: 0.875rem;
            border-top: 1px solid var(--border);
            padding-top: 2rem;
            margin-bottom: 0;
        }

        /* --- MEDIA QUERIES --- */
        @media (min-width: 768px) {
            h1 { font-size: 3rem; }

            .menu-toggle { display: none; }

            #main-nav {
                display: block;
                position: static;
                width: auto;
                background: transparent;
                border: none;
                box-shadow: none;
            }

            #main-nav ul {
                display: flex;
                gap: 1.5rem;
                padding: 0;
            }

            #main-nav a {
                padding: 0.5rem 0;
                font-size: 1.1rem;
            }

            #main-nav a:hover {
                background: transparent;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            h1 { font-size: 3.5rem; }
            .intro-quote { font-size: 1.25rem; padding: 2rem; }
        }


/* 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; }