:root {
            --bg: #04140f;
            --surface: #0a241b;
            --surface-alt: #0d2e23;
            --surface-hover: #123d2f;
            --accent: #f0b429;
            --accent-hover: #f5c754;
            --accent2: #2dd4a7;
            --accent2-hover: #4de0b8;
            --text: #eefbf5;
            --muted: #8fb3a5;
            --border: rgba(143, 179, 165, 0.15);
            --border-highlight: rgba(240, 180, 41, 0.3);

            --font-display: 'Teko', sans-serif;
            --font-body: 'Nunito', sans-serif;

            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;

            --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: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        h1, h2, h3, .logo, .footer-brand, .display-font {
            font-family: var(--font-display);
            font-weight: 500;
            line-height: 1.1;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

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

        /* --- HEADER (Part A1 Match) --- */
        header {
            background-color: rgba(4, 20, 15, 0.95);
            backdrop-filter: blur(10px);
            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 {
            font-size: 2.2rem;
            color: var(--accent);
            letter-spacing: 1px;
        }
        #main-nav ul {
            list-style: none;
            display: flex;
            gap: 24px;
        }
        #main-nav a {
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
        }
        #main-nav a:hover { color: var(--accent); }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 44px;
            height: 44px;
            position: relative;
            z-index: 101;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text);
            margin: 5px auto;
            transition: var(--transition);
        }

        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            #main-nav {
                position: fixed;
                top: 70px;
                left: 100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--surface);
                transition: transform 0.3s ease-in-out;
                overflow-y: auto;
            }
            #main-nav.active { transform: translateX(-100%); }
            #main-nav ul {
                flex-direction: column;
                padding: 24px;
                gap: 16px;
            }
            #main-nav a {
                display: block;
                padding: 12px;
                background: var(--surface-alt);
                border-radius: var(--radius-sm);
                text-align: center;
            }
            .menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
            .menu-toggle.active span:nth-child(2) { opacity: 0; }
            .menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
        }

        /* --- HERO BANNER --- */
        .hero {
            position: relative;
            padding: 60px 0 40px;
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image:
                linear-gradient(var(--border) 1px, transparent 1px),
                linear-gradient(90deg, var(--border) 1px, transparent 1px);
            background-size: 40px 40px;
            opacity: 0.2;
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; }

        .breadcrumb {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--accent2); }
        .breadcrumb span { color: var(--text); }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            color: var(--accent);
            margin-bottom: 20px;
            text-shadow: 0 4px 20px rgba(240, 180, 41, 0.2);
            max-width: 900px;
        }

        .meta-chips {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(45, 212, 167, 0.1);
            border: 1px solid rgba(45, 212, 167, 0.2);
            color: var(--accent2);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .chip svg { width: 14px; height: 14px; fill: currentColor; }

        /* --- MAIN CONTENT --- */
        .page-content {
            padding: 40px 20px 80px;
            display: grid;
            gap: 40px;
        }

        .intro-box {
            background: var(--surface);
            border-left: 4px solid var(--accent);
            padding: 24px 32px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 1.1rem;
            color: var(--text);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .content-section h2 {
            font-size: 2.2rem;
            color: var(--text);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .content-section h2::before {
            content: '';
            display: block;
            width: 12px;
            height: 12px;
            background: var(--accent2);
            border-radius: 2px;
            transform: rotate(45deg);
        }

        .content-section p {
            color: var(--muted);
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .content-section p:last-child { margin-bottom: 0; }

        .feature-list {
            list-style: none;
            margin: 24px 0;
            display: grid;
            gap: 16px;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        }
        .feature-list li {
            background: var(--surface-alt);
            border: 1px solid var(--border);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text);
            font-weight: 600;
        }
        .feature-list li::before {
            content: '✓';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background: rgba(45, 212, 167, 0.15);
            color: var(--accent2);
            border-radius: 50%;
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* --- RELATED LINKS WIDGET --- */
        .related-widget {
            background: var(--surface);
            border: 1px solid var(--border-highlight);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .related-widget::after {
            content: '';
            position: absolute;
            top: 0; right: 0;
            width: 150px; height: 150px;
            background: radial-gradient(circle, rgba(240,180,41,0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .related-widget h3 {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 24px;
        }
        .related-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .related-link-card {
            background: var(--surface-alt);
            border: 1px solid var(--border);
            padding: 16px 24px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
        }
        .related-link-card:hover {
            background: var(--surface-hover);
            border-color: var(--accent2);
            transform: translateY(-2px);
            text-decoration: none;
            color: var(--accent2);
        }

        /* --- FAQ SECTION --- */
        .faq-container {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        details {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        summary {
            padding: 20px;
            font-family: var(--font-display);
            font-size: 1.4rem;
            color: var(--accent);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--surface);
            transition: var(--transition);
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            font-family: var(--font-body);
            font-size: 1.5rem;
            color: var(--muted);
            transition: transform 0.3s ease;
        }
        details[open] summary {
            background: var(--surface-hover);
            border-bottom: 1px solid var(--border);
        }
        details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent2);
        }
        details p {
            padding: 20px;
            color: var(--muted);
            margin: 0;
        }

        /* --- CTA BLOCK --- */
        .cta-block {
            background: linear-gradient(135deg, var(--surface-alt) 0%, var(--surface) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
            margin-top: 20px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .cta-block h2 {
            font-size: 2.8rem;
            color: var(--text);
            margin-bottom: 16px;
            border: none;
            justify-content: center;
        }
        .cta-block h2::before { display: none; }
        .cta-block p {
            color: var(--muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-family: var(--font-display);
            font-size: 1.4rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            text-decoration: none;
            min-width: 180px;
            min-height: 48px;
        }
        .btn-primary {
            background: var(--accent);
            color: #000;
            border: none;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(240, 180, 41, 0.3);
            text-decoration: none;
        }
        .btn-secondary {
            background: transparent;
            color: var(--accent2);
            border: 2px solid var(--accent2);
        }
        .btn-secondary:hover {
            background: rgba(45, 212, 167, 0.1);
            text-decoration: none;
        }

        /* --- FOOTER (Part A2 Match) --- */
        footer {
            background-color: var(--bg);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
            text-align: center;
        }
        .footer-brand {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .footer-tagline {
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto 30px;
            font-size: 0.95rem;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: 40px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-links a {
            color: var(--text);
            font-size: 0.9rem;
            padding: 4px 8px;
        }
        .footer-links a:hover { color: var(--accent); }
        .copyright {
            color: var(--muted);
            font-size: 0.85rem;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            margin-top: 20px;
        }

        @media (max-width: 768px) {
            .page-content { padding: 30px 20px 60px; gap: 32px; }
            .intro-box { padding: 20px; border-radius: var(--radius-sm); border-left-width: 3px; }
            .content-section h2 { font-size: 1.8rem; }
            .cta-block { padding: 32px 20px; }
            .cta-block h2 { font-size: 2.2rem; }
            .btn { width: 100%; }
            .related-link-card { width: 100%; justify-content: center; }
        }


/* 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; }