:root {
            --bg: #081018;
            --surface: #122030;
            --surface-light: #1a2d42;
            --accent: #60a5fa;
            --accent-hover: #3b82f6;
            --accent2: #fbbf24;
            --accent2-hover: #f59e0b;
            --text: #f0f6ff;
            --muted: #8fa0b8;
            --border: #2a3d52;
            --font-display: 'Anton', sans-serif;
            --font-body: 'Barlow', sans-serif;
            --container-width: 1024px;
            --container-content: 800px;
        }

        * { 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: all 0.3s ease; }
        a:hover { color: var(--accent-hover); }

        h1, h2, h3, h4 {
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            line-height: 1.2;
            font-weight: 400;
        }

        p { margin-bottom: 1.5rem; color: var(--text); font-size: 1.05rem; }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-family: var(--font-display);
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            border: none;
            min-height: 44px;
        }

        .btn-primary {
            background-color: var(--accent2);
            color: #000;
        }
        .btn-primary:hover {
            background-color: var(--accent2-hover);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }
        .btn-secondary:hover {
            background-color: var(--accent);
            color: #000;
        }

        /* HEADER STYLES (Targeting Part A1 HTML) */
        header {
            background-color: rgba(8, 16, 24, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            font-family: var(--font-display);
            font-size: 1.8rem;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-links { display: none; }
        .nav-links a {
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .nav-links a:hover { color: var(--accent); }
        .header-ctas { display: none; gap: 10px; }
        .mobile-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.8rem;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 10px 20px;
        }
        .mobile-menu.active { display: flex; }
        .mobile-menu a {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            color: var(--text);
            font-weight: 500;
            text-transform: uppercase;
        }
        .mobile-menu a:last-child { border-bottom: none; }

        @media (min-width: 1024px) {
            .nav-links { display: flex; gap: 24px; }
            .header-ctas { display: flex; }
            .mobile-toggle { display: none; }
            .mobile-menu { display: none !important; }
        }

        /* FOOTER STYLES (Targeting Part A2 HTML) */
        footer {
            background-color: #050a0f;
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 15px;
            text-transform: uppercase;
        }
        .footer-tagline {
            color: var(--muted);
            max-width: 400px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 40px;
            border-top: 1px solid var(--border);
            padding-top: 30px;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 0.9rem;
        }
        .footer-links a:hover { color: var(--accent); }
        .footer-copy {
            color: #4a5d73;
            font-size: 0.85rem;
            text-align: center;
            border-top: 1px solid var(--border);
            padding-top: 20px;
        }
        @media (min-width: 768px) {
            .footer-links { grid-template-columns: repeat(4, 1fr); }
        }

        /* HERO BANNER - Custom Design */
        .hero {
            position: relative;
            background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border);
            text-align: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: repeating-linear-gradient(45deg, rgba(96, 165, 250, 0.02) 0px, rgba(96, 165, 250, 0.02) 2px, transparent 2px, transparent 10px);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--accent);
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            position: relative;
            z-index: 2;
        }
        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            color: var(--text);
            margin-bottom: 20px;
            text-shadow: 0 4px 12px rgba(0,0,0,0.5);
            position: relative;
            z-index: 2;
        }
        .meta-chips {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }
        .chip {
            background-color: var(--surface-light);
            border: 1px solid var(--border);
            color: var(--muted);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
        }
        .hero-intro {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.15rem;
            color: #c0d0e0;
            position: relative;
            z-index: 2;
        }

        /* MAIN CONTENT AREA */
        .content-main {
            max-width: var(--container-content);
            margin: 40px auto 0;
            padding: 0 20px;
        }

        .content-section {
            margin-bottom: 50px;
        }

        .content-section h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--surface-light);
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .content-section h2::before {
            content: '';
            display: block;
            width: 12px;
            height: 24px;
            background-color: var(--accent2);
            transform: skewX(-15deg);
        }

        /* Content specific styling */
        .content-section a {
            text-decoration: underline;
            text-underline-offset: 4px;
            font-weight: 500;
        }

        .surface-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-left: 4px solid var(--accent);
            padding: 30px;
            border-radius: 8px;
            margin-top: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .surface-card h2 {
            border-bottom: none;
            padding-bottom: 0;
            margin-bottom: 20px;
        }
        .surface-card h2::before { display: none; }

        .feature-list {
            list-style: none;
            margin-top: 20px;
        }

        .feature-list li {
            position: relative;
            padding-left: 35px;
            margin-bottom: 15px;
            color: var(--text);
            font-size: 1.05rem;
        }

        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 2px;
            width: 24px;
            height: 24px;
            background-color: rgba(251, 191, 36, 0.1);
            color: var(--accent2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
            border: 1px solid rgba(251, 191, 36, 0.3);
        }

        .blockquote-style {
            padding: 20px 20px 20px 30px;
            border-left: 4px solid var(--accent2);
            background-color: var(--surface);
            font-style: italic;
            margin-bottom: 25px;
            border-radius: 0 8px 8px 0;
        }
        .blockquote-style p { margin-bottom: 0; }

        /* FAQ SECTION */
        .faq-section { margin-top: 60px; }
        details {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: 6px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        details[open] {
            border-color: var(--accent);
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }
        summary {
            padding: 18px 20px;
            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;
            letter-spacing: 0.02em;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            color: var(--accent2);
            font-size: 1.5rem;
            font-weight: bold;
            transition: transform 0.3s ease;
        }
        details[open] summary::after {
            content: '-';
            transform: rotate(180deg);
        }
        details p {
            padding: 0 20px 20px;
            color: var(--muted);
            margin-bottom: 0;
        }

        /* RELATED PAGES BLOCK */
        .related-block {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
        }
        .related-block h2 {
            font-size: 1.8rem;
            text-align: center;
            margin-bottom: 30px;
            justify-content: center;
        }
        .related-block h2::before { display: none; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 15px;
        }
        .related-link-card {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 15px 20px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: 6px;
            color: var(--text);
            font-family: var(--font-display);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            text-decoration: none !important;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .related-link-card::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0;
            width: 4px;
            background-color: var(--accent);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }
        .related-link-card:hover {
            background-color: var(--surface-light);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .related-link-card:hover::before {
            transform: scaleY(1);
        }

        /* GRAND CTA */
        .grand-cta {
            margin-top: 60px;
            background: linear-gradient(135deg, var(--surface) 0%, #0c1a29 100%);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 50px 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .grand-cta::after {
            content: '';
            position: absolute;
            right: -50px; bottom: -50px;
            width: 200px; height: 200px;
            border: 20px solid rgba(251, 191, 36, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .grand-cta h2 {
            font-size: 2.5rem;
            color: var(--text);
            margin-bottom: 15px;
            justify-content: center;
            border: none;
            padding: 0;
        }
        .grand-cta h2::before { display: none; }
        .grand-cta p {
            color: var(--muted);
            max-width: 600px;
            margin: 0 auto 30px;
        }
        .cta-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-buttons .btn { min-width: 180px; }

        @media (max-width: 768px) {
            .hero { padding: 40px 0 30px; }
            .hero h1 { font-size: 2.2rem; }
            .content-section h2 { font-size: 1.6rem; }
            .grand-cta { padding: 40px 20px; }
            .grand-cta h2 { font-size: 2rem; }
            .surface-card { padding: 20px; }
        }


/* 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; }