:root {
            --bg: #0e0a14;
            --surface: #1d1530;
            --accent: #ff6b9d;
            --accent2: #4dd0ff;
            --text: #f5f0ff;
            --muted: #a795c2;
            --font-display: 'Orbitron', sans-serif;
            --font-body: 'Exo 2', sans-serif;
            --container-width: 1200px;
            --content-width: 840px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--accent2);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            font-weight: 700;
            line-height: 1.3;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

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

        .content-container {
            width: 100%;
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* --- HEADER STYLES (Matching Part A1 HTML) --- */
        .header {
            background-color: #050308;
            border-bottom: 2px solid var(--surface);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 900;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .brand span {
            color: var(--accent);
        }

        .nav {
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #050308;
            flex-direction: column;
            padding: 20px;
            border-bottom: 2px solid var(--surface);
        }

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

        .nav-links a {
            color: var(--text);
            padding: 12px 0;
            font-family: var(--font-display);
            font-size: 14px;
            text-transform: uppercase;
            border-bottom: 1px solid var(--surface);
        }

        .nav-links a:last-child {
            border-bottom: none;
        }

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

        .header-ctas {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 15px;
        }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            text-align: center;
            cursor: pointer;
            border: none;
            position: relative;
            z-index: 1;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 4px;
            left: 4px;
            right: -4px;
            bottom: -4px;
            z-index: -1;
            transition: all 0.2s ease;
        }

        .btn:hover {
            transform: translate(-2px, -2px);
        }

        .btn:hover::before {
            transform: translate(2px, 2px);
        }

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

        .btn-primary::before {
            background-color: var(--accent2);
            border: 2px solid var(--surface);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent2);
            border: 2px solid var(--accent2);
        }

        .btn-secondary::before {
            background-color: var(--surface);
        }

        .btn-secondary:hover {
            background-color: var(--surface);
            color: var(--text);
        }

        .menu-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 28px;
            cursor: pointer;
            display: block;
            min-width: 44px;
            min-height: 44px;
        }

        @media (min-width: 1024px) {
            .menu-toggle {
                display: none;
            }
            .nav-links {
                display: flex;
                position: static;
                flex-direction: row;
                align-items: center;
                background: none;
                padding: 0;
                border: none;
                width: auto;
            }
            .nav-links a {
                padding: 0 15px;
                border: none;
                font-size: 13px;
            }
            .header-ctas {
                flex-direction: row;
                margin-top: 0;
                margin-left: 20px;
            }
        }

        /* --- HERO SECTION --- */
        .hero {
            padding: 60px 0 50px;
            background: linear-gradient(180deg, #130d1d 0%, var(--bg) 100%);
            border-bottom: 4px dashed var(--surface);
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image:
                linear-gradient(rgba(29, 21, 48, 0.3) 1px, transparent 1px),
                linear-gradient(90deg, rgba(29, 21, 48, 0.3) 1px, transparent 1px);
            background-size: 20px 20px;
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            font-size: 12px;
            color: var(--muted);
            margin-bottom: 20px;
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 32px;
            color: var(--text);
            margin-bottom: 25px;
            text-shadow: 3px 3px 0px var(--surface), 5px 5px 0px var(--accent);
        }

        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .chip {
            background-color: var(--surface);
            color: var(--accent2);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(77, 208, 255, 0.3);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .chip::before {
            content: '■';
            font-size: 10px;
            color: var(--accent);
        }

        @media (min-width: 768px) {
            .hero h1 { font-size: 48px; }
        }

        /* --- MAIN CONTENT --- */
        .main-article {
            padding: 50px 0;
        }

        .intro-box {
            background-color: var(--surface);
            border-left: 4px solid var(--accent);
            padding: 25px;
            margin-bottom: 50px;
            font-size: 18px;
            line-height: 1.8;
            position: relative;
            box-shadow: 6px 6px 0px rgba(0,0,0,0.5);
        }

        .intro-box::after {
            content: '';
            position: absolute;
            top: -2px; right: -2px;
            width: 10px; height: 10px;
            background-color: var(--accent2);
        }

        .content-section {
            margin-bottom: 60px;
        }

        .content-section h2 {
            font-size: 24px;
            color: var(--accent2);
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--surface);
        }

        .content-section h2::before {
            content: '';
            display: block;
            width: 16px;
            height: 16px;
            background-color: var(--accent);
            box-shadow: 4px 4px 0px var(--surface);
        }

        .content-section p {
            margin-bottom: 20px;
            font-size: 16px;
            color: #d8cde8;
        }

        /* Pixel List Style */
        .pixel-list {
            list-style: none;
            margin: 25px 0;
            padding: 0;
        }

        .pixel-list li {
            position: relative;
            padding-left: 35px;
            margin-bottom: 15px;
            font-size: 16px;
            color: var(--text);
        }

        .pixel-list li::before {
            content: '►';
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent);
            font-family: var(--font-display);
            font-size: 14px;
        }

        /* Steps Style (For Section 2) */
        .steps-grid {
            display: grid;
            gap: 20px;
            margin: 30px 0;
            counter-reset: step-counter;
        }

        .step-card {
            background-color: rgba(29, 21, 48, 0.5);
            border: 1px solid var(--surface);
            padding: 20px;
            position: relative;
            transition: transform 0.3s ease;
        }

        .step-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent2);
        }

        .step-card::before {
            counter-increment: step-counter;
            content: "0" counter(step-counter);
            position: absolute;
            top: -15px;
            right: -10px;
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 900;
            color: var(--bg);
            text-shadow:
                -1px -1px 0 var(--accent2),
                 1px -1px 0 var(--accent2),
                -1px  1px 0 var(--accent2),
                 1px  1px 0 var(--accent2),
                 3px  3px 0 var(--accent);
            z-index: 1;
        }

        @media (min-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Alert Box (For Section 4) */
        .alert-box {
            background: repeating-linear-gradient(
                45deg,
                rgba(29, 21, 48, 0.8),
                rgba(29, 21, 48, 0.8) 10px,
                rgba(14, 10, 20, 0.8) 10px,
                rgba(14, 10, 20, 0.8) 20px
            );
            border: 2px solid var(--accent);
            padding: 30px;
            margin: 30px 0;
        }

        .alert-box .pixel-list li::before {
            color: var(--accent2);
            content: '■';
        }

        /* Prep Grid (For Section 3) */
        .prep-grid {
            display: grid;
            gap: 15px;
            margin: 30px 0;
        }

        .prep-item {
            display: flex;
            align-items: center;
            background-color: var(--surface);
            padding: 15px 20px;
            border-left: 4px solid var(--accent2);
        }

        .prep-item::before {
            content: '✓';
            font-family: var(--font-display);
            color: var(--accent);
            font-size: 20px;
            margin-right: 15px;
        }

        @media (min-width: 768px) {
            .prep-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* --- FAQ SECTION --- */
        .faq-section {
            background-color: var(--surface);
            padding: 60px 0;
            border-top: 4px solid var(--bg);
            border-bottom: 4px solid var(--bg);
        }

        .faq-section h2 {
            text-align: center;
            font-size: 28px;
            color: var(--text);
            margin-bottom: 40px;
            text-shadow: 2px 2px 0px var(--accent);
        }

        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        details {
            background-color: var(--bg);
            border: 1px solid rgba(167, 149, 194, 0.2);
            transition: all 0.3s ease;
        }

        details[open] {
            border-color: var(--accent2);
            box-shadow: 4px 4px 0px rgba(77, 208, 255, 0.2);
        }

        summary {
            padding: 20px;
            font-family: var(--font-display);
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            position: relative;
            padding-right: 50px;
        }

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

        summary::after {
            content: '+';
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 24px;
        }

        details[open] summary::after {
            content: '−';
            color: var(--accent2);
        }

        details p {
            padding: 0 20px 20px;
            color: #d8cde8;
            margin: 0;
        }

        /* --- RELATED PAGES --- */
        .related-section {
            padding: 60px 0;
            text-align: center;
        }

        .related-section h3 {
            font-size: 20px;
            color: var(--muted);
            margin-bottom: 30px;
        }

        .related-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .related-link {
            display: inline-block;
            background-color: var(--surface);
            padding: 12px 20px;
            border: 1px solid rgba(255, 107, 157, 0.3);
            font-family: var(--font-display);
            font-size: 14px;
            color: var(--text);
            text-transform: uppercase;
            transition: all 0.3s ease;
        }

        .related-link:hover {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: scale(1.05);
            box-shadow: 0 0 15px rgba(255, 107, 157, 0.5);
        }

        /* --- MEGA CTA --- */
        .mega-cta {
            padding: 60px 20px;
            margin: 40px auto 80px;
            max-width: 1000px;
            background: linear-gradient(135deg, var(--surface) 0%, #2a1f45 100%);
            border: 4px solid var(--accent2);
            text-align: center;
            position: relative;
            box-shadow: 10px 10px 0px rgba(0,0,0,0.6);
        }

        .mega-cta::before, .mega-cta::after {
            content: '';
            position: absolute;
            width: 20px; height: 20px;
            background-color: var(--bg);
        }
        .mega-cta::before { top: -4px; left: -4px; }
        .mega-cta::after { bottom: -4px; right: -4px; }

        .mega-cta h2 {
            font-size: 32px;
            color: var(--text);
            margin-bottom: 15px;
            text-shadow: 2px 2px 0px var(--accent);
        }

        .mega-cta p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            flex-direction: column;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }

        @media (min-width: 480px) {
            .cta-buttons {
                flex-direction: row;
            }
        }

        /* --- FOOTER (Matching Part A2 HTML) --- */
        .testimoni-author {
            background-color: #050308;
            padding: 20px;
            text-align: center;
            font-family: var(--font-display);
            font-size: 14px;
            color: var(--text);
            border-top: 2px solid var(--surface);
        }
        .testimoni-author span {
            color: var(--muted);
        }


/* 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; }