:root {
            /* Palette */
            --bg: #06140a;
            --surface: #0d2414;
            --surface-light: #16361f;
            --accent: #4ade80;
            --accent-hover: #22c55e;
            --accent2: #fbbf24;
            --text: #f0fff4;
            --muted: #8fb598;

            /* Typography */
            --font-display: 'Montserrat', sans-serif;
            --font-body: 'Lora', serif;

            /* UI Elements */
            --radius: 8px;
            --radius-lg: 16px;
            --transition: all 0.3s ease;
            --container-w: 1024px;
            --header-h: 70px;
        }

        /* Reset & Base */
        * { 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;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #ffffff;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-secondary:hover {
            background-color: rgba(74, 222, 128, 0.1);
        }

        /* Header (A1 Styles) */
        header {
            background-color: rgba(6, 20, 10, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0; left: 0; right: 0;
            height: var(--header-h);
            z-index: 100;
            border-bottom: 1px solid var(--surface-light);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .brand span { color: var(--accent); }
        .nav-menu {
            display: none;
            gap: 20px;
        }
        .nav-link {
            font-family: var(--font-display);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
        }
        .nav-link:hover { color: var(--accent); }
        .header-ctas { display: none; gap: 10px; }
        .menu-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Mobile Menu Active State */
        .nav-menu.active {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: var(--header-h);
            left: 0;
            right: 0;
            background-color: var(--surface);
            padding: 20px;
            border-bottom: 1px solid var(--surface-light);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .header-ctas.active {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: calc(var(--header-h) + 240px); /* Adjust based on nav items */
            left: 0; right: 0;
            background-color: var(--surface);
            padding: 0 20px 20px;
            border-bottom: 1px solid var(--surface-light);
        }

        /* Inner Page Hero (Creative Area) */
        .hero-banner {
            margin-top: var(--header-h);
            padding: 60px 0 40px;
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            position: relative;
            text-align: center;
            border-bottom: 1px solid var(--surface-light);
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(circle at 50% 0%, rgba(74, 222, 128, 0.08) 0%, transparent 60%);
            background-size: 100% 100%;
            pointer-events: none;
        }
        /* Pitch-wave motif subtle lines */
        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0; height: 4px;
            background: repeating-linear-gradient(
                90deg,
                var(--accent),
                var(--accent) 20px,
                var(--surface-light) 20px,
                var(--surface-light) 40px
            );
            opacity: 0.5;
        }
        .breadcrumb {
            font-family: var(--font-display);
            font-size: 0.8rem;
            color: var(--muted);
            margin-bottom: 20px;
            display: inline-block;
            background: rgba(22, 54, 31, 0.5);
            padding: 5px 15px;
            border-radius: 20px;
        }
        .hero-banner h1 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .meta-chips {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .chip {
            font-family: var(--font-display);
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent2);
            background: rgba(251, 191, 36, 0.1);
            border: 1px solid rgba(251, 191, 36, 0.2);
            padding: 4px 12px;
            border-radius: 12px;
        }
        .intro-blockquote {
            font-size: 1.1rem;
            color: var(--text);
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            padding: 0 20px;
            font-style: italic;
        }

        /* Main Content Area */
        .main-article {
            padding: 50px 0;
            max-width: 800px;
            margin: 0 auto;
        }

        .content-section {
            margin-bottom: 50px;
            background: var(--surface);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--surface-light);
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            position: relative;
            overflow: hidden;
        }
        .content-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background: var(--accent);
        }

        /* Stylized H2 */
        .content-section h2 {
            font-size: 1.5rem;
            color: var(--accent);
            border-bottom: 1px solid var(--surface-light);
            padding-bottom: 15px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .content-section p {
            margin-bottom: 15px;
            color: #d1e8d8;
        }
        .content-section p:last-child { margin-bottom: 0; }

        .content-section a {
            font-weight: 600;
            text-decoration: underline;
            text-decoration-color: rgba(74, 222, 128, 0.3);
            text-underline-offset: 4px;
        }
        .content-section a:hover {
            text-decoration-color: var(--accent);
        }

        /* Visual Checklist */
        .feature-list {
            list-style: none;
            margin: 20px 0;
            padding: 0;
            background: rgba(6, 20, 10, 0.5);
            border-radius: var(--radius);
            padding: 20px;
        }
        .feature-list li {
            position: relative;
            padding-left: 35px;
            margin-bottom: 15px;
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feature-list li:last-child { margin-bottom: 0; }
        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0; top: -2px;
            width: 24px; height: 24px;
            background: var(--accent);
            color: var(--bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        /* FAQ Section */
        .faq-wrapper {
            margin-top: 60px;
        }
        .faq-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 30px;
        }
        details {
            background: var(--surface);
            border: 1px solid var(--surface-light);
            border-radius: var(--radius);
            margin-bottom: 15px;
            transition: var(--transition);
        }
        details[open] {
            border-color: var(--accent);
            box-shadow: 0 0 15px rgba(74, 222, 128, 0.1);
        }
        summary {
            padding: 18px 20px;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #ffffff;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            font-weight: 400;
            transition: transform 0.3s ease;
        }
        details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        details p {
            padding: 0 20px 20px;
            margin: 0;
            color: var(--muted);
            border-top: 1px solid var(--surface-light);
            padding-top: 15px;
        }

        /* Related Pages Block */
        .related-pages {
            margin-top: 60px;
            background: rgba(22, 54, 31, 0.3);
            border: 1px dashed var(--muted);
            border-radius: var(--radius-lg);
            padding: 30px;
            text-align: center;
        }
        .related-pages h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--accent2);
        }
        .nav-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .nav-pills a {
            background: var(--surface);
            border: 1px solid var(--surface-light);
            padding: 8px 16px;
            border-radius: 30px;
            font-family: var(--font-display);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
        }
        .nav-pills a:hover {
            background: var(--accent);
            color: var(--bg);
            border-color: var(--accent);
        }

        /* Grand CTA */
        .cta-grand {
            margin-top: 60px;
            background: linear-gradient(135deg, var(--surface) 0%, #112d1a 100%);
            border: 2px solid var(--accent);
            border-radius: var(--radius-lg);
            padding: 40px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(74, 222, 128, 0.15);
        }
        .cta-grand::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.1) 0%, transparent 50%);
            animation: pulse-glow 8s infinite linear;
            pointer-events: none;
        }
        @keyframes pulse-glow {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .cta-grand h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-grand p {
            color: var(--muted);
            margin-bottom: 25px;
            position: relative;
            z-index: 1;
        }
        .cta-actions {
            display: flex;
            gap: 15px;
            justify-content: center;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .cta-actions .btn { min-width: 160px; }

        /* Footer (A2 Styles) */
        footer {
            background-color: #040d06;
            padding: 60px 0 20px;
            margin-top: 60px;
            border-top: 1px solid var(--surface-light);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffffff;
            text-transform: uppercase;
            margin-bottom: 15px;
        }
        .footer-brand span { color: var(--accent); }
        .footer-tagline {
            color: var(--muted);
            font-size: 0.9rem;
        }
        .footer-title {
            font-size: 1.1rem;
            color: var(--accent2);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0; bottom: 0;
            width: 30px; height: 2px;
            background-color: var(--accent);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: var(--muted);
            font-size: 0.9rem;
            font-family: var(--font-display);
        }
        .footer-links a:hover { color: var(--accent); padding-left: 5px; }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--surface-light);
            color: var(--muted);
            font-size: 0.8rem;
            font-family: var(--font-display);
        }

        /* Responsive Breakpoints */
        @media (min-width: 768px) {
            .hero-banner h1 { font-size: 2.8rem; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .header-inner .menu-toggle { display: none; }
            .header-inner .nav-menu { display: flex; }
            .header-inner .header-ctas { display: flex; }
            .nav-menu.active, .header-ctas.active { position: static; display: flex; flex-direction: row; background: none; padding: 0; border: none; box-shadow: none; }
        }

        @media (min-width: 1024px) {
            .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
            .hero-banner { padding: 80px 0 60px; }
            .main-article { padding: 80px 0; }
        }


/* 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; }