:root {
            --bg: #0a120c;
            --surface: #122018;
            --surface-alt: #1a2f23;
            --accent: #4ade80;
            --accent-hover: #22c55e;
            --accent2: #a3e635;
            --text: #f0fdf4;
            --muted: #8fb89f;
            --border: rgba(74, 222, 128, 0.15);
            --font-display: 'Anton', sans-serif;
            --font-body: 'Barlow', sans-serif;
            --shadow-step: 4px 4px 0px rgba(74, 222, 128, 0.15);
            --shadow-step-hover: 6px 6px 0px rgba(163, 230, 53, 0.25);
            --radius: 4px; /* Slightly sharp for ninja feel */
            --transition: all 0.3s ease;
        }

        * {
            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;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        h1, h2, h3, h4, .font-display {
            font-family: var(--font-display);
            font-weight: normal;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

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

        /* HEADER (Provided Structure Styling) */
        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: 28px;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 0px rgba(0,0,0,0.5);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 28px;
            cursor: pointer;
            padding: 5px;
        }

        .nav-links {
            display: flex;
            gap: 24px;
        }

        .nav-links a {
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        /* HERO SECTION */
        .hero-rtp {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .hero-rtp::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: radial-gradient(var(--border) 1px, transparent 1px);
            background-size: 20px 20px;
            opacity: 0.3;
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
            font-weight: 500;
        }

        .hero-rtp h1 {
            font-size: clamp(36px, 5vw, 56px);
            color: var(--text);
            margin-bottom: 24px;
            line-height: 1.1;
            text-shadow: var(--shadow-step);
        }

        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .chip {
            background-color: var(--surface-alt);
            border: 1px solid var(--border);
            color: var(--accent2);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
            box-shadow: 2px 2px 0px rgba(0,0,0,0.3);
        }

        /* MAIN CONTENT */
        .content-area {
            padding: 50px 20px;
            display: grid;
            gap: 40px;
        }

        /* INTRO BLOCK */
        .intro-block {
            background-color: var(--surface);
            padding: 30px;
            border-left: 4px solid var(--accent);
            border-radius: var(--radius);
            box-shadow: var(--shadow-step);
            font-size: 17px;
            color: var(--text);
        }

        .intro-block p {
            margin: 0;
        }

        /* CONTENT SECTIONS */
        .section-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px;
            position: relative;
            transition: var(--transition);
        }

        .section-card:hover {
            box-shadow: var(--shadow-step-hover);
            border-color: rgba(163, 230, 53, 0.3);
        }

        .section-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 30px;
            height: 30px;
            border-top: 2px solid var(--accent);
            border-left: 2px solid var(--accent);
            opacity: 0.5;
        }

        .section-card h2 {
            font-size: 28px;
            color: var(--accent2);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-card p {
            margin-bottom: 16px;
            color: #d1e8db;
        }

        .section-card p:last-child {
            margin-bottom: 0;
        }

        .section-card a {
            font-weight: 600;
            border-bottom: 1px dashed var(--accent);
        }

        .section-card a:hover {
            border-bottom-style: solid;
        }

        /* LIST STYLING */
        .ninja-list {
            list-style: none;
            margin-top: 24px;
            display: grid;
            gap: 12px;
        }

        .ninja-list li {
            padding-left: 32px;
            position: relative;
            background-color: var(--surface-alt);
            padding: 16px 16px 16px 44px;
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.05);
            font-weight: 500;
        }

        .ninja-list li::before {
            content: '»';
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-family: var(--font-display);
            color: var(--accent);
            font-size: 20px;
        }

        /* FAQ SECTION */
        .faq-wrapper {
            margin-top: 20px;
        }

        .faq-header {
            font-size: 32px;
            margin-bottom: 24px;
            color: var(--text);
            text-align: center;
        }

        .faq-grid {
            display: grid;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

        details {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        details[open] {
            border-color: var(--accent);
            box-shadow: var(--shadow-step);
        }

        summary {
            padding: 20px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
        }

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

        summary::after {
            content: '+';
            font-family: var(--font-display);
            font-size: 24px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        details[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent2);
        }

        details p {
            padding: 0 20px 20px;
            color: var(--muted);
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 16px;
        }

        /* RELATED PAGES */
        .related-section {
            background-color: var(--surface-alt);
            padding: 40px;
            border-radius: var(--radius);
            text-align: center;
            border: 1px solid var(--border);
        }

        .related-section h3 {
            font-size: 24px;
            margin-bottom: 24px;
            color: var(--accent);
        }

        .related-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .related-link {
            background-color: var(--bg);
            color: var(--text);
            border: 1px solid var(--border);
            padding: 12px 24px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 3px 3px 0px rgba(0,0,0,0.4);
        }

        .related-link:hover {
            background-color: var(--accent);
            color: var(--bg);
            border-color: var(--accent);
            box-shadow: 3px 3px 0px var(--accent2);
            transform: translateY(-2px);
        }

        /* CTA BLOCK */
        .cta-block {
            background: linear-gradient(135deg, var(--surface) 0%, var(--surface-alt) 100%);
            padding: 60px 40px;
            text-align: center;
            border-radius: var(--radius);
            border: 2px solid var(--accent);
            box-shadow: var(--shadow-step-hover);
            margin-top: 20px;
            position: relative;
            overflow: hidden;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
            opacity: 0.1;
        }

        .cta-block h2 {
            font-size: 36px;
            color: var(--text);
            margin-bottom: 16px;
        }

        .cta-block p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-family: var(--font-display);
            font-size: 18px;
            border-radius: var(--radius);
            min-height: 48px;
            min-width: 160px;
            cursor: pointer;
            box-shadow: var(--shadow-step);
        }

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

        .btn-primary:hover {
            background-color: var(--accent-hover);
            color: var(--bg);
            box-shadow: var(--shadow-step-hover);
            transform: translateY(-2px);
        }

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

        .btn-secondary:hover {
            background-color: rgba(74, 222, 128, 0.1);
            color: var(--accent2);
            border-color: var(--accent2);
            box-shadow: var(--shadow-step-hover);
            transform: translateY(-2px);
        }

        /* FOOTER (Provided Structure Styling) */
        footer {
            background-color: #050906;
            border-top: 1px solid var(--border);
            padding: 60px 0 20px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 32px;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 16px;
        }

        .footer-tagline {
            color: var(--muted);
            font-size: 14px;
            max-width: 300px;
        }

        .footer-links h4 {
            color: var(--text);
            font-size: 18px;
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            color: var(--muted);
            font-size: 13px;
        }

        /* RESPONSIVE DESIGN */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--surface);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border);
                gap: 16px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }

            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            .hero-rtp {
                padding: 40px 0 30px;
            }

            .content-area {
                padding: 30px 20px;
                gap: 30px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .cta-block {
                padding: 40px 20px;
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

            .btn {
                width: 100%;
            }
        }

        @media (max-width: 390px) {
            .section-card {
                padding: 20px;
            }

            .section-card h2 {
                font-size: 24px;
            }

            .related-section {
                padding: 24px 16px;
            }

            .related-link {
                width: 100%;
                text-align: 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; }