:root {
            /* Palette */
            --bg: #0a120c;
            --surface: #122018;
            --surface-alt: #1a2f23;
            --accent: #4ade80;
            --accent2: #a3e635;
            --text: #f0fdf4;
            --muted: #8fb89f;
            --border: #2a4734;

            /* Typography */
            --font-display: 'Anton', sans-serif;
            --font-body: 'Barlow', sans-serif;

            /* Motif */
            --shadow-step: 4px 4px 0px 0px rgba(74, 222, 128, 0.15);
            --shadow-step-hover: 6px 6px 0px 0px rgba(163, 230, 53, 0.3);
            --shadow-step-solid: 4px 4px 0px 0px var(--accent);

            /* Layout */
            --container-w: 1024px;
            --transition: all 0.3s ease;
        }

        /* Base Reset */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent2); }
        .container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }

        /* Typography */
        h1, h2, h3, h4 { font-family: var(--font-display); font-weight: normal; letter-spacing: 0.05em; text-transform: uppercase; line-height: 1.2; margin-bottom: 1rem; }
        h1 { font-size: 2.5rem; color: var(--accent2); }
        h2 { font-size: 2rem; color: var(--accent); border-bottom: 2px solid var(--surface-alt); padding-bottom: 0.5rem; margin-top: 2.5rem; }
        h3 { font-size: 1.5rem; }
        p { margin-bottom: 1.2rem; }

        /* HEADER (A1 Styles) */
        header { background-color: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-family: var(--font-display); font-size: 2rem; color: var(--accent); text-transform: uppercase; letter-spacing: 2px; }
        .nav-links { display: flex; gap: 20px; }
        .nav-links a { color: var(--text); font-weight: 600; text-transform: uppercase; font-size: 0.9rem; padding: 10px 0; }
        .nav-links a:hover { color: var(--accent); }
        .menu-toggle { display: none; background: none; border: none; color: var(--accent); font-size: 1.8rem; cursor: pointer; }

        /* HERO SECTION */
        .hero-banner {
            background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
            padding: 3rem 0;
            border-bottom: 1px dashed var(--border);
            position: relative;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -50px; right: -50px;
            width: 200px; height: 200px;
            background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(74,222,128,0.03) 10px, rgba(74,222,128,0.03) 20px);
            border-radius: 50%;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: inline-block;
            background: var(--surface-alt);
            padding: 4px 12px;
            border-radius: 4px;
        }
        .meta-chips { display: flex; gap: 10px; margin-top: 1rem; flex-wrap: wrap; }
        .chip {
            font-size: 0.8rem;
            font-weight: 600;
            background-color: var(--surface-alt);
            color: var(--accent2);
            padding: 4px 10px;
            border: 1px solid var(--border);
            border-radius: 2px;
            text-transform: uppercase;
        }

        /* MAIN CONTENT */
        .article-content { padding: 3rem 0; }
        .lead-intro {
            font-size: 1.15rem;
            color: var(--text);
            background: var(--surface);
            padding: 1.5rem;
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-step);
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        /* Content Blocks & Lists */
        .content-section { margin-bottom: 3rem; }
        .styled-list {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
            display: grid;
            gap: 1rem;
        }
        .styled-list li {
            background: var(--surface);
            padding: 1rem 1rem 1rem 3rem;
            position: relative;
            border: 1px solid var(--border);
            border-radius: 4px;
            transition: var(--transition);
        }
        .styled-list li:hover { border-color: var(--accent); transform: translateX(5px); }
        .styled-list li::before {
            content: '►';
            position: absolute;
            left: 1rem;
            top: 1rem;
            color: var(--accent);
            font-size: 0.9rem;
        }

        /* Pro Tip Box */
        .pro-tip-box {
            background: linear-gradient(to right, var(--surface), var(--surface-alt));
            border: 1px solid var(--accent);
            padding: 2rem;
            margin: 2rem 0;
            position: relative;
            box-shadow: var(--shadow-step-solid);
        }
        .pro-tip-box h2 { border-bottom: none; margin-top: 0; padding-bottom: 0; }

        /* FAQ Section */
        .faq-section { margin: 4rem 0; }
        .faq-item {
            background: var(--surface);
            margin-bottom: 1rem;
            border: 1px solid var(--border);
            border-radius: 4px;
        }
        .faq-item summary {
            padding: 1.2rem;
            font-family: var(--font-display);
            font-size: 1.2rem;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '+';
            color: var(--accent);
            font-size: 1.5rem;
            transition: transform 0.3s;
        }
        .faq-item[open] summary { border-bottom: 1px dashed var(--border); color: var(--accent2); }
        .faq-item[open] summary::after { transform: rotate(45deg); }
        .faq-item p { padding: 1.2rem; margin: 0; color: var(--muted); }

        /* Related Pages Grid */
        .related-nav {
            background: var(--surface);
            padding: 2rem;
            border-top: 3px solid var(--accent);
            margin: 4rem 0;
        }
        .related-nav h3 { text-align: center; color: var(--muted); margin-bottom: 1.5rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .related-card {
            display: block;
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 1rem;
            text-align: center;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 0.9rem;
            box-shadow: var(--shadow-step);
        }
        .related-card:hover {
            background: var(--surface-alt);
            border-color: var(--accent);
            box-shadow: var(--shadow-step-hover);
            transform: translateY(-2px);
        }

        /* Grand CTA */
        .grand-cta {
            background: var(--accent);
            color: var(--bg);
            text-align: center;
            padding: 4rem 2rem;
            margin: 4rem 0 0 0;
            position: relative;
            overflow: hidden;
        }
        .grand-cta::after {
            content: '';
            position: absolute;
            bottom: 0; right: 0;
            width: 100%; height: 100%;
            background: repeating-linear-gradient(-45deg, transparent, transparent 20px, rgba(10,18,12,0.05) 20px, rgba(10,18,12,0.05) 40px);
            pointer-events: none;
        }
        .grand-cta h2 { color: var(--bg); border: none; margin-top: 0; font-size: 2.5rem; }
        .grand-cta p { font-size: 1.2rem; font-weight: 500; margin-bottom: 2rem; }
        .cta-buttons { display: flex; justify-content: center; gap: 1rem; position: relative; z-index: 2; flex-wrap: wrap; }
        .btn {
            display: inline-block;
            padding: 12px 30px;
            font-family: var(--font-display);
            font-size: 1.2rem;
            text-transform: uppercase;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            min-width: 160px;
            text-align: center;
        }
        .btn-primary { background: var(--bg); color: var(--accent); box-shadow: 4px 4px 0px 0px rgba(10,18,12,0.5); }
        .btn-primary:hover { background: var(--surface); color: var(--accent2); transform: translate(-2px, -2px); box-shadow: 6px 6px 0px 0px rgba(10,18,12,0.5); }
        .btn-secondary { background: transparent; color: var(--bg); border: 2px solid var(--bg); }
        .btn-secondary:hover { background: var(--bg); color: var(--accent); }

        /* FOOTER (A2 Styles) */
        footer { background-color: var(--bg); border-top: 2px solid var(--surface); padding: 3rem 0 1rem; color: var(--muted); }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
        .footer-brand { font-family: var(--font-display); font-size: 2rem; color: var(--accent); text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 1rem; }
        .footer-tagline { font-size: 0.9rem; }
        .footer-links h4 { color: var(--text); font-size: 1.2rem; margin-bottom: 1rem; border-bottom: 1px solid var(--surface); padding-bottom: 0.5rem; }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.5rem; }
        .footer-links a { color: var(--muted); font-size: 0.9rem; }
        .footer-links a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; padding-top: 1.5rem; border-top: 1px solid var(--surface); font-size: 0.8rem; }

        /* Responsive */
        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            .nav-links {
                display: none; width: 100%; position: absolute; top: 70px; left: 0;
                background: var(--surface); flex-direction: column; padding: 1rem 0;
                border-bottom: 1px solid var(--border); box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .nav-links.active { display: flex; }
            .nav-links a { padding: 12px 20px; border-bottom: 1px solid var(--surface-alt); }
            .footer-grid { grid-template-columns: 1fr; }
            h1 { font-size: 2rem; }
            .grand-cta h2 { font-size: 2rem; }
            .pro-tip-box { padding: 1.5rem; }
        }
        @media (max-width: 390px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .lead-intro { font-size: 1rem; padding: 1rem; }
            .cta-buttons { flex-direction: column; width: 100%; }
            .btn { width: 100%; }
            .related-grid { grid-template-columns: 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; }