:root {
            --bg: #060f0a;
            --surface: #0d2015;
            --surface-light: #163322;
            --accent: #fbbf24;
            --accent-hover: #f59e0b;
            --accent2: #34d399;
            --text: #f0fdf4;
            --muted: #8fa898;
            --border: #1e402d;

            --font-body: 'Fira Sans', sans-serif;
            --font-display: 'Oswald', sans-serif;
        }

        /* Reset & Base */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--accent2); text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: var(--accent); }
        ul, ol { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }

        .container {
            width: 100%;
            max-width: 1024px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* --- HEADER STYLES (Matching Part A1 HTML) --- */
        header {
            background-color: rgba(6, 15, 10, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 15px 0;
        }
        .flex { display: flex; }
        .justify-between { justify-content: space-between; }
        .items-center { align-items: center; }

        .logo {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo:hover { color: var(--text); }

        .nav-links { display: none; gap: 24px; }
        .nav-links a {
            color: var(--text);
            font-weight: 500;
            font-size: 15px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover { color: var(--accent); }

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

        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 10px 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
        }
        .mobile-menu.active { display: flex; }
        .mobile-menu a {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            color: var(--text);
            font-weight: 500;
        }
        .mobile-menu a:last-child { border-bottom: none; }

        @media (min-width: 768px) {
            .nav-links { display: flex; }
            .menu-toggle { display: none; }
            .mobile-menu { display: none !important; }
        }

        /* --- INNER PAGE SPECIFIC STYLES --- */
        /* Hero Banner */
        .hero-banner {
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .hero-banner::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: 13px;
            color: var(--muted);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb a { color: var(--muted); }
        .breadcrumb a:hover { color: var(--accent); }

        h1 {
            font-family: var(--font-display);
            font-size: 36px;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        h1::after {
            content: '.';
            color: var(--accent);
        }

        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 10px;
        }
        .chip {
            background-color: var(--surface-light);
            color: var(--muted);
            font-size: 12px;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            font-weight: 500;
        }
        .chip::before {
            content: '';
            display: inline-block;
            width: 6px; height: 6px;
            border-radius: 50%;
            background-color: var(--accent);
            margin-right: 8px;
        }

        /* Main Content Area */
        .content-area {
            padding: 40px 20px 80px;
            max-width: 800px; /* Narrower for reading */
        }

        h2 {
            font-family: var(--font-display);
            font-size: 26px;
            color: var(--accent);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        p { margin-bottom: 20px; font-size: 16px; color: #d1e0d7; }

        .content-area a {
            color: var(--accent2);
            font-weight: 500;
            text-decoration: underline;
            text-decoration-color: rgba(52, 211, 153, 0.3);
            text-underline-offset: 3px;
        }
        .content-area a:hover {
            color: var(--accent);
            text-decoration-color: var(--accent);
        }

        /* Intro Block */
        .intro-block {
            font-size: 18px;
            font-style: italic;
            color: var(--text);
            padding: 24px;
            background-color: var(--surface);
            border-left: 4px solid var(--accent);
            border-radius: 0 8px 8px 0;
            margin-bottom: 40px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }

        /* Custom List */
        .feature-list {
            margin: 20px 0 30px;
            display: grid;
            gap: 12px;
        }
        .feature-list li {
            position: relative;
            padding-left: 32px;
            color: #d1e0d7;
            font-size: 16px;
            background: var(--surface);
            padding: 16px 16px 16px 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }
        .feature-list li::before {
            content: '✦';
            position: absolute;
            left: 16px;
            top: 16px;
            color: var(--accent);
            font-size: 14px;
        }

        /* Surface Cards for Sections */
        .content-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            position: relative;
        }
        .content-card::before {
            content: '';
            position: absolute;
            top: -1px; left: 20px;
            width: 40px; height: 2px;
            background-color: var(--accent2);
        }
        .content-card h2 {
            margin-top: 0;
            border-bottom: none;
            padding-bottom: 0;
        }

        /* FAQ Section */
        .faq-wrapper { margin-top: 30px; }
        details {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        details[open] {
            border-color: var(--accent);
            box-shadow: 0 0 15px rgba(251, 191, 36, 0.05);
        }
        summary {
            padding: 18px 20px;
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 500;
            cursor: pointer;
            list-style: none;
            position: relative;
            color: var(--text);
            padding-right: 40px;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 24px;
            font-weight: 300;
            transition: transform 0.3s;
        }
        details[open] summary::after {
            content: '−';
            transform: translateY(-50%) rotate(180deg);
        }
        details p {
            padding: 0 20px 20px;
            margin: 0;
            color: var(--muted);
            font-size: 15px;
        }

        /* Related Links Grid */
        .related-nav {
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px dashed var(--border);
        }
        .related-nav h2 {
            text-align: center;
            border: none;
            margin-top: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 24px;
        }
        .related-link-card {
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-color: var(--surface);
            border: 1px solid var(--border);
            padding: 16px;
            border-radius: 8px;
            font-family: var(--font-display);
            text-transform: uppercase;
            font-size: 15px;
            color: var(--text);
            text-decoration: none !important;
            transition: all 0.3s ease;
        }
        .related-link-card:hover {
            background-color: var(--surface-light);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.4);
        }

        /* CTA Block */
        .cta-grand {
            background: linear-gradient(135deg, var(--surface) 0%, #112a1c 100%);
            border: 1px solid var(--accent);
            border-radius: 16px;
            padding: 40px 20px;
            text-align: center;
            margin-top: 60px;
            position: relative;
            overflow: hidden;
        }
        .cta-grand::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle at center, rgba(251,191,36,0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-grand h3 {
            font-family: var(--font-display);
            font-size: 28px;
            color: var(--text);
            margin-bottom: 15px;
            text-transform: uppercase;
        }
        .cta-grand p {
            color: var(--muted);
            margin-bottom: 30px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-family: var(--font-display);
            font-size: 16px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-radius: 4px;
            text-decoration: none !important;
            min-width: 200px;
            min-height: 44px; /* Touch target */
            transition: all 0.3s ease;
        }
        .btn-primary {
            background-color: var(--accent);
            color: #000;
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--text);
            border: 1px solid var(--text);
        }
        .btn-outline:hover {
            background-color: var(--surface-light);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* --- FOOTER STYLES (Matching Part A2 HTML) --- */
        footer {
            background-color: #040a07;
            border-top: 1px solid var(--border);
            padding: 60px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 15px; display: inline-block; }
        .footer-tagline { color: var(--muted); font-size: 14px; max-width: 300px; }

        .footer-links h4 {
            font-family: var(--font-display);
            color: var(--text);
            font-size: 18px;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .footer-links ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: var(--muted); font-size: 14px; }
        .footer-links a:hover { color: var(--accent); padding-left: 5px; }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            text-align: center;
            color: var(--muted);
            font-size: 13px;
        }

        /* Responsive Breakpoints */
        @media (min-width: 768px) {
            h1 { font-size: 42px; }
            .btn-group { flex-direction: row; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .intro-block { font-size: 20px; padding: 32px; }
        }
        @media (min-width: 1024px) {
            h1 { font-size: 48px; }
            .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
        }


/* 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; }