:root {
            --bg: #0a120c;
            --surface: #122018;
            --surface-alt: #172a1f;
            --accent: #4ade80;
            --accent-hover: #22c55e;
            --accent2: #a3e635;
            --text: #f0fdf4;
            --muted: #8fb89f;
            --border: #1f382a;

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

            --shadow-step: 4px 4px 0px 0px var(--accent);
            --shadow-step-alt: 4px 4px 0px 0px var(--surface-alt);
            --shadow-step-hover: 6px 6px 0px 0px var(--accent2);

            --clip-ninja: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
            --clip-ninja-rev: polygon(20px 0, 100% 0, 100% 100%, 0 100%, 0 20px);
        }

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

        a { color: var(--accent); text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: var(--accent2); }
        ul, ol { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }

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

        /* typography */
        h1, h2, h3, h4, .brand-font {
            font-family: var(--font-display);
            text-transform: uppercase;
            font-weight: normal;
            letter-spacing: 0.05em;
            line-height: 1.1;
        }

        h1 { font-size: clamp(2.5rem, 5vw, 4rem); color: var(--accent); text-shadow: 2px 2px 0px rgba(0,0,0,0.5); }
        h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); color: var(--text); margin-bottom: 1rem; }
        h3 { font-size: clamp(1.3rem, 2vw, 1.8rem); color: var(--accent2); }
        p { margin-bottom: 1.2rem; font-size: 1.125rem; }

        /* HEADER (VERBATIM 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);
            letter-spacing: 2px;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
        }
        .nav-links a {
            color: var(--text);
            font-weight: 600;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1px;
        }
        .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 BANNER */
        .hero-login {
            background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
            padding: 4rem 0 3rem;
            position: relative;
            border-bottom: 2px solid var(--border);
        }
        .hero-login::before {
            content: '';
            position: absolute;
            top: 0; right: 0; bottom: 0; left: 0;
            background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(74, 222, 128, 0.03) 10px, rgba(74, 222, 128, 0.03) 20px);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .meta-chips {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }
        .chip {
            background-color: var(--surface-alt);
            color: var(--muted);
            padding: 0.4rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            border-left: 3px solid var(--accent);
            box-shadow: 2px 2px 0px rgba(0,0,0,0.3);
        }

        /* MAIN CONTENT AREA */
        .page-layout {
            padding: 4rem 0;
            display: flex;
            flex-direction: column;
            gap: 4rem;
        }

        /* INTRO & LOGIN GATEWAY */
        .intro-section {
            background-color: var(--surface);
            padding: 2.5rem;
            border: 1px solid var(--border);
            clip-path: var(--clip-ninja);
            box-shadow: var(--shadow-step-alt);
            position: relative;
        }
        .intro-section::after {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background-color: var(--accent);
        }
        .intro-text {
            font-size: 1.25rem;
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 0;
        }

        .login-gateway {
            display: flex;
            justify-content: center;
            margin-top: -2rem; /* Pull up to overlap slightly */
            position: relative;
            z-index: 10;
        }
        .btn-massive {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--accent);
            color: var(--bg);
            font-family: var(--font-display);
            font-size: 1.8rem;
            padding: 1rem 3rem;
            clip-path: var(--clip-ninja-rev);
            box-shadow: var(--shadow-step-hover);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-massive:hover {
            transform: translate(-2px, -2px);
            box-shadow: 8px 8px 0px 0px var(--accent2);
            color: var(--bg);
        }

        /* ARTICLE BODY */
        .content-body {
            max-width: 900px;
            margin: 0 auto;
        }
        .content-section {
            margin-bottom: 4rem;
        }
        .content-section h2 {
            display: inline-block;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 0.3rem;
            margin-bottom: 1.5rem;
            position: relative;
        }
        .content-section h2::after {
            content: '';
            position: absolute;
            right: -15px; bottom: -2px;
            width: 10px; height: 2px;
            background-color: var(--accent2);
        }

        /* Custom List Styling */
        .step-list {
            margin-top: 2rem;
            display: grid;
            gap: 1rem;
        }
        .step-list li {
            background-color: var(--surface-alt);
            padding: 1.2rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1.5rem;
            border: 1px solid var(--border);
            box-shadow: 3px 3px 0px 0px rgba(0,0,0,0.5);
            transition: transform 0.3s;
        }
        .step-list li:hover {
            transform: translateX(5px);
            border-color: var(--accent);
        }
        .step-number {
            font-family: var(--font-display);
            font-size: 2rem;
            color: var(--bg);
            background-color: var(--accent);
            min-width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
        }

        /* Inline link styling inside paragraphs */
        .content-section p a {
            color: var(--accent2);
            font-weight: 600;
            border-bottom: 1px dashed var(--accent2);
        }
        .content-section p a:hover {
            color: var(--text);
            border-bottom-style: solid;
            background-color: rgba(163, 230, 53, 0.1);
        }

        /* FAQ SECTION */
        .faq-wrapper {
            background-color: var(--surface);
            padding: 3rem;
            border-top: 3px solid var(--accent);
            box-shadow: var(--shadow-step-alt);
        }
        .faq-wrapper h2 { text-align: center; margin-bottom: 2.5rem; }
        details {
            background-color: var(--surface-alt);
            margin-bottom: 1rem;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }
        details[open] { border-color: var(--accent); box-shadow: -4px 4px 0px 0px rgba(74,222,128,0.1); }
        summary {
            padding: 1.2rem 1.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            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: 1.5rem;
            color: var(--accent);
            transition: transform 0.3s;
        }
        details[open] summary::after { transform: rotate(45deg); color: var(--accent2); }
        details p {
            padding: 0 1.5rem 1.5rem;
            margin: 0;
            color: var(--muted);
        }

        /* RELATED PAGES */
        .related-nav-block {
            margin-top: 2rem;
            padding-top: 3rem;
            border-top: 1px dashed var(--border);
        }
        .related-nav-block h3 { margin-bottom: 1.5rem; text-align: center; }
        .related-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .related-grid a {
            background-color: var(--bg);
            border: 1px solid var(--accent);
            color: var(--text);
            padding: 0.8rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 2px 2px 0px 0px var(--accent);
            transition: all 0.2s;
        }
        .related-grid a:hover {
            background-color: var(--accent);
            color: var(--bg);
            transform: translate(-2px, -2px);
            box-shadow: 4px 4px 0px 0px var(--accent2);
        }

        /* FINAL CTA */
        .final-cta {
            background: linear-gradient(45deg, var(--surface-alt), var(--surface));
            padding: 4rem 2rem;
            text-align: center;
            border: 1px solid var(--border);
            clip-path: var(--clip-ninja);
            margin-top: 2rem;
            position: relative;
            overflow: hidden;
        }
        .final-cta::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(74,222,128,0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .final-cta h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; color: var(--accent); }
        .final-cta p { font-size: 1.2rem; color: var(--muted); margin-bottom: 2.5rem; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-group {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2.5rem;
            font-family: var(--font-display);
            font-size: 1.2rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            min-width: 200px;
            min-height: 44px;
            transition: all 0.3s;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            box-shadow: var(--shadow-step);
        }
        .btn-primary:hover {
            background-color: var(--accent2);
            transform: translate(-2px, -2px);
            box-shadow: var(--shadow-step-hover);
            color: var(--bg);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            box-shadow: 4px 4px 0px 0px rgba(74,222,128,0.2);
        }
        .btn-outline:hover {
            background-color: var(--surface-alt);
            color: var(--accent2);
            border-color: var(--accent2);
            transform: translate(-2px, -2px);
            box-shadow: var(--shadow-step-hover);
        }

        /* FOOTER (VERBATIM STYLES) */
        footer {
            background-color: #050a06;
            padding: 4rem 0 2rem;
            border-top: 2px solid var(--accent);
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 2.5rem;
            color: var(--accent);
            display: block;
            margin-bottom: 1rem;
            letter-spacing: 2px;
        }
        .footer-tagline { color: var(--muted); font-size: 1rem; max-width: 300px; }
        .footer-links h4 { color: var(--text); margin-bottom: 1.5rem; font-size: 1.2rem; }
        .footer-links ul { display: flex; flex-direction: column; gap: 0.8rem; }
        .footer-links a { color: var(--muted); font-weight: 500; }
        .footer-links a:hover { color: var(--accent); padding-left: 5px; }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border);
            color: var(--muted);
            font-size: 0.9rem;
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--surface);
                flex-direction: column;
                padding: 1.5rem 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .nav-links.active { display: flex; }
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .hero-login { padding: 3rem 0 2rem; }
            .page-layout { gap: 3rem; padding: 2rem 0; }
            .intro-section { padding: 1.5rem; clip-path: none; border-radius: 8px; }
            .btn-massive { font-size: 1.4rem; padding: 0.8rem 2rem; clip-path: none; border-radius: 4px; }
            .faq-wrapper { padding: 2rem 1.5rem; }
        }
        @media (max-width: 390px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2.2rem; }
            .meta-chips { flex-direction: column; gap: 0.5rem; }
            .chip { width: fit-content; }
            .step-list li { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
            .cta-group { flex-direction: column; width: 100%; }
            .btn { width: 100%; }
        }


/* 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; }