:root {
            --bg: #0b0a08;
            --surface: #1c1913;
            --surface-alt: #2a261d;
            --accent: #d98e32;
            --accent-hover: #e8a24a;
            --accent2: #6cb4ee;
            --text: #faf7f0;
            --muted: #a89f91;
            --font-display: 'Anton', sans-serif;
            --font-body: 'Barlow', sans-serif;
            --container-w: 1200px;
            --border-radius: 4px; /* Sharp, aggressive edges for arena 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(--accent-hover);
        }

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

        /* Typography */
        h1, h2, h3, .brand {
            font-family: var(--font-display);
            text-transform: uppercase;
            font-weight: 400;
            letter-spacing: 1px;
            line-height: 1.1;
        }

        /* Header Styles (Matching Homepage constraints) */
        header {
            background-color: rgba(11, 10, 8, 0.95);
            border-bottom: 2px solid var(--accent);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .brand {
            font-size: 2rem;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
        }

        .nav-links {
            display: flex;
            gap: 20px;
        }

        .nav-links a {
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 5px 0;
            position: relative;
        }

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

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

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent);
            font-size: 1.8rem;
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
        }

        /* Hero Banner */
        .hero {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, rgba(28, 25, 19, 0) 0%, var(--surface) 100%);
            position: relative;
            border-bottom: 1px solid rgba(217, 142, 50, 0.2);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at top, rgba(217, 142, 50, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-weight: 600;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            color: var(--text);
            margin-bottom: 20px;
            text-shadow: 2px 2px 0px rgba(0,0,0,0.8), -1px -1px 0px var(--accent);
            max-width: 900px;
        }

        .meta-chips {
            display: flex;
            gap: 12px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .chip {
            background-color: var(--bg);
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-radius: 20px;
            box-shadow: 0 0 10px rgba(217, 142, 50, 0.1);
        }

        .intro-block {
            background-color: rgba(28, 25, 19, 0.8);
            border-left: 4px solid var(--accent);
            padding: 24px;
            font-size: 1.1rem;
            color: var(--text);
            max-width: 1000px;
            box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
        }

        /* Main Content Arena */
        .arena-content {
            padding: 60px 0;
            display: grid;
            gap: 40px;
        }

        .section-card {
            background-color: var(--surface);
            border: 1px solid rgba(168, 159, 145, 0.1);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .section-card::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, transparent 50%, rgba(217, 142, 50, 0.05) 50%);
        }

        .section-card h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .section-card h2::before {
            content: '';
            display: block;
            width: 30px;
            height: 4px;
            background-color: var(--accent2);
        }

        .section-card p {
            margin-bottom: 16px;
            color: var(--muted);
            font-size: 1.05rem;
        }

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

        .section-card a {
            font-weight: 700;
            text-decoration: underline;
            text-decoration-color: rgba(217, 142, 50, 0.5);
            text-underline-offset: 4px;
        }

        .section-card a:hover {
            text-decoration-color: var(--accent);
        }

        /* Specific Layouts within Cards */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        /* Custom List */
        .benefit-list {
            list-style: none;
            margin-top: 24px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 16px;
        }

        .benefit-list li {
            background-color: var(--bg);
            padding: 16px 20px;
            border-left: 3px solid var(--accent2);
            color: var(--text);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .benefit-list li::before {
            content: '✓';
            color: var(--accent);
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* FAQ Section */
        .faq-section {
            margin-top: 20px;
        }

        .faq-section h2 {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 30px;
            color: var(--text);
        }

        details {
            background-color: var(--surface);
            border: 1px solid rgba(217, 142, 50, 0.2);
            margin-bottom: 12px;
            transition: var(--transition);
        }

        details[open] {
            border-color: var(--accent);
            box-shadow: 0 0 15px rgba(217, 142, 50, 0.05);
        }

        summary {
            padding: 20px;
            font-family: var(--font-display);
            font-size: 1.2rem;
            letter-spacing: 0.5px;
            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: '+';
            color: var(--accent);
            font-size: 1.5rem;
            transition: transform 0.3s;
        }

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

        details p {
            padding: 0 20px 20px;
            color: var(--muted);
        }

        /* Related Pages Navigation */
        .related-nav {
            background-color: var(--surface-alt);
            padding: 40px;
            text-align: center;
            border-top: 1px solid #333;
            border-bottom: 1px solid #333;
        }

        .related-nav h3 {
            font-size: 1.8rem;
            margin-bottom: 24px;
            color: var(--muted);
        }

        .related-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .related-links a {
            background-color: var(--bg);
            border: 2px solid var(--accent);
            color: var(--text);
            padding: 12px 24px;
            font-family: var(--font-display);
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: var(--transition);
            clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
        }

        .related-links a:hover {
            background-color: var(--accent);
            color: var(--bg);
            transform: translateY(-3px);
        }

        /* Grand CTA */
        .cta-grand {
            padding: 80px 0;
            text-align: center;
            background: radial-gradient(circle at center, var(--surface) 0%, var(--bg) 100%);
            position: relative;
        }

        .cta-grand::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .cta-grand h2 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            margin-bottom: 15px;
            color: var(--text);
        }

        .cta-grand p {
            color: var(--muted);
            font-size: 1.2rem;
            margin-bottom: 30px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 15px 40px;
            font-family: var(--font-display);
            font-size: 1.2rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            min-height: 50px;
            cursor: pointer;
            transition: var(--transition);
            clip-path: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px);
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            color: var(--bg);
            transform: scale(1.05);
            box-shadow: 0 0 20px rgba(217, 142, 50, 0.4);
        }

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

        .btn-secondary:hover {
            background-color: rgba(217, 142, 50, 0.1);
            color: var(--text);
        }

        /* Footer Styles (Matching Homepage constraints) */
        footer {
            background-color: #050403;
            padding: 60px 0 30px;
            border-top: 1px solid #1a1a1a;
            text-align: center;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 2.5rem;
            color: var(--text);
            margin-bottom: 15px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .footer-tagline {
            color: var(--muted);
            margin-bottom: 30px;
            font-size: 1.1rem;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px 25px;
            margin-bottom: 40px;
        }

        .footer-links a {
            color: var(--muted);
            text-transform: uppercase;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 1px;
        }

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

        .copyright {
            color: #555;
            font-size: 0.9rem;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .grid-2col {
                grid-template-columns: 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: 2px solid var(--accent);
                text-align: center;
            }

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

            .menu-toggle {
                display: block;
            }

            .section-card {
                padding: 25px;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .btn {
                width: 100%;
            }
        }

        @media (max-width: 390px) {
            .meta-chips {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .related-links a {
                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; }