:root {
            --bg: #0c0c0e;
            --surface: #1a1a20;
            --surface-hover: #23232c;
            --accent: #ffd700;
            --accent-hover: #ffea00;
            --accent2: #ff4d00;
            --text: #f8f8fa;
            --muted: #9a9aa5;
            --font-display: 'Bebas Neue', sans-serif;
            --font-body: 'Sora', sans-serif;
            --speed-gradient: linear-gradient(135deg, var(--accent2) 0%, var(--accent) 100%);
            --carbon-pattern: repeating-linear-gradient(45deg, #111 0, #111 2px, transparent 2px, transparent 4px);
        }

        /* Reset & Base */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--accent-hover); }
        h1, h2, h3, h4, .logo { font-family: var(--font-display); font-weight: normal; letter-spacing: 1px; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* Typography */
        h1 { font-size: 2.5rem; line-height: 1.1; margin-bottom: 1rem; color: var(--text); text-transform: uppercase; }
        h2 { font-size: 2rem; color: var(--accent); margin-bottom: 1rem; text-transform: uppercase; position: relative; padding-left: 15px; }
        h2::before { content: ''; position: absolute; left: 0; top: 10%; height: 80%; width: 4px; background: var(--speed-gradient); transform: skewX(-15deg); }
        h3 { font-size: 1.5rem; margin-bottom: 0.5rem; text-transform: uppercase; }
        p { margin-bottom: 1.2rem; color: #d0d0d5; font-size: 0.95rem; }
        strong { color: var(--text); font-weight: 600; }

        /* Buttons */
        .btn {
            display: inline-flex; justify-content: center; align-items: center;
            padding: 12px 24px; font-family: var(--font-display); font-size: 1.2rem;
            text-transform: uppercase; letter-spacing: 1px; border-radius: 4px;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            cursor: pointer; min-height: 44px; min-width: 44px; text-align: center;
        }
        .btn-primary { background: var(--speed-gradient); color: var(--bg); border: none; font-weight: bold; }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3); color: var(--bg); }
        .btn-secondary { background: transparent; color: var(--text); border: 2px solid var(--muted); }
        .btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

        /* Header (Verbatim styling context) */
        header { background: rgba(12, 12, 14, 0.95); border-bottom: 1px solid rgba(255, 215, 0, 0.1); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-size: 2rem; color: var(--text); text-transform: uppercase; }
        .logo span { color: var(--accent); }
        .nav-links { display: none; }
        .nav-links a { margin-left: 20px; color: var(--text); font-size: 0.9rem; font-family: var(--font-display); letter-spacing: 1px; text-transform: uppercase; }
        .nav-links a:hover { color: var(--accent); }
        .menu-toggle { background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; display: block; min-width: 44px; min-height: 44px; }

        @media (min-width: 1024px) {
            .nav-links { display: flex; align-items: center; }
            .menu-toggle { display: none; }
        }
        /* Mobile Menu Active State */
        .nav-links.active {
            display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0;
            background: var(--surface); padding: 20px; border-bottom: 2px solid var(--accent);
        }
        .nav-links.active a { margin: 10px 0; font-size: 1.2rem; }

        /* Hero Banner */
        .hero {
            position: relative; padding: 60px 0; overflow: hidden;
            background-color: var(--surface);
            background-image: var(--carbon-pattern);
            border-bottom: 2px solid var(--accent2);
        }
        .hero::after {
            content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 50%;
            background: linear-gradient(90deg, transparent, rgba(255,215,0,0.05));
            transform: skewX(-30deg); transform-origin: top right; pointer-events: none;
        }
        .breadcrumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 15px; font-family: var(--font-body); }
        .meta-chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 15px; }
        .chip {
            background: rgba(255, 215, 0, 0.1); color: var(--accent); border: 1px solid rgba(255, 215, 0, 0.3);
            padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; display: inline-flex; align-items: center;
        }

        /* Main Content Area */
        .content-area { padding: 40px 0; }

        /* Intro Blockquote */
        .intro-block {
            background: var(--surface); padding: 25px; border-left: 4px solid var(--accent);
            margin-bottom: 40px; border-radius: 0 8px 8px 0; position: relative;
        }
        .intro-block p { margin-bottom: 0; font-size: 1.05rem; color: var(--text); line-height: 1.7; }

        /* Content Sections */
        .section-block { margin-bottom: 40px; }
        .section-block a { border-bottom: 1px dashed var(--accent); padding-bottom: 1px; }
        .section-block a:hover { border-bottom-style: solid; }

        /* Custom List Styling */
        .feature-card {
            background: var(--surface); padding: 25px; border-radius: 8px; margin-top: 20px;
            border: 1px solid rgba(255, 255, 255, 0.05); position: relative; overflow: hidden;
        }
        .feature-card::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: var(--speed-gradient);
        }
        .feature-list { list-style: none; margin-top: 15px; }
        .feature-list li {
            position: relative; padding-left: 30px; margin-bottom: 15px; font-size: 0.95rem; color: #d0d0d5;
        }
        .feature-list li::before {
            content: '►'; position: absolute; left: 0; top: 2px; color: var(--accent2); font-size: 0.8rem; font-family: system-ui;
        }
        .feature-list li:last-child { margin-bottom: 0; }

        /* FAQ Section */
        .faq-wrapper { margin-top: 50px; }
        details {
            background: var(--surface); margin-bottom: 15px; border-radius: 6px;
            border: 1px solid rgba(255,255,255,0.05); overflow: hidden;
            transition: background 0.3s ease;
        }
        details:hover { background: var(--surface-hover); }
        summary {
            padding: 18px 20px; font-family: var(--font-display); font-size: 1.2rem;
            cursor: pointer; list-style: none; display: flex; justify-content: space-between;
            align-items: center; color: var(--text); letter-spacing: 0.5px;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+'; color: var(--accent); font-size: 1.5rem; line-height: 1; transition: transform 0.3s ease;
        }
        details[open] summary::after { transform: rotate(45deg); color: var(--accent2); }
        details p { padding: 0 20px 20px; margin: 0; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 15px; }

        /* Related Links */
        .related-links { margin: 50px 0; padding: 30px; background: #131318; border-radius: 8px; text-align: center; border: 1px solid rgba(154, 154, 165, 0.1); }
        .related-links h3 { color: var(--muted); margin-bottom: 20px; }
        .related-grid { display: flex; flex-wrap: wrap; gap: 15px; justify-content: center; }
        .related-grid a {
            background: var(--surface); color: var(--text); padding: 10px 20px; border-radius: 4px;
            font-size: 0.9rem; border: 1px solid rgba(255,215,0,0.2); transition: all 0.3s ease;
            text-transform: capitalize;
        }
        .related-grid a:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); transform: scale(1.05); }

        /* CTA Block */
        .cta-block {
            margin: 60px 0; padding: 50px 30px; border-radius: 12px; text-align: center;
            background: linear-gradient(45deg, var(--surface) 0%, #1a1a24 100%);
            border: 2px solid var(--accent); position: relative; overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .cta-block::before {
            content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
            background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,215,0,0.03) 10px, rgba(255,215,0,0.03) 20px);
            animation: moveStripes 20s linear infinite; pointer-events: none;
        }
        @keyframes moveStripes { 100% { transform: translate(50px, 50px); } }
        .cta-block h2 { font-size: 2.5rem; margin-bottom: 10px; color: var(--text); text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
        .cta-block h2::before { display: none; } /* Remove side line for center align */
        .cta-block p { font-size: 1.1rem; margin-bottom: 30px; color: var(--text); position: relative; z-index: 2; }
        .cta-actions { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }

        /* Footer (Verbatim styling context) */
        footer { background: #08080a; padding: 50px 0 20px; border-top: 1px solid rgba(154, 154, 165, 0.1); margin-top: auto; }
        .footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-tagline { color: var(--muted); margin-top: 15px; font-size: 0.9rem; max-width: 300px; }
        .footer-links-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .footer-links-grid a { color: var(--muted); font-size: 0.9rem; }
        .footer-links-grid a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; color: var(--muted); font-size: 0.8rem; }

        /* Breakpoints */
        @media (min-width: 768px) {
            h1 { font-size: 3.5rem; }
            .footer-grid { grid-template-columns: 1fr 2fr; }
            .footer-links-grid { grid-template-columns: repeat(3, 1fr); }
            .intro-block { padding: 35px; }
        }
        @media (min-width: 1024px) {
            .footer-links-grid { grid-template-columns: repeat(4, 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; }