/* CSS Variables - Midnight Jungle & Tiger Eye Palette */
        :root {
            --bg-color: #060f0a;
            --surface-color: #0d2015;
            --surface-light: #163322;
            --accent-color: #fbbf24; /* Tiger Eye Gold */
            --accent-hover: #f59e0b;
            --accent2-color: #34d399; /* Jungle Green */
            --text-main: #f0fdf4;
            --text-muted: #8fa898;

            --font-display: 'Oswald', sans-serif;
            --font-body: 'Fira Sans', sans-serif;

            --container-width: 1024px;
            --transition: all 0.3s ease;
        }

        /* Base Reset */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

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

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            font-weight: 600;
            line-height: 1.2;
            color: var(--text-main);
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Global Header (Part A1 Match) */
        header {
            background-color: rgba(6, 15, 10, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--surface-light);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 1rem 0;
        }

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

        .logo {
            font-family: var(--font-display);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .logo:hover {
            color: var(--text-main);
        }

        .nav-links {
            display: none;
            gap: 1.5rem;
        }

        .nav-links a {
            font-family: var(--font-display);
            color: var(--text-main);
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

        .menu-toggle {
            display: block;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            min-width: 44px;
            min-height: 44px;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--surface-color);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            border-bottom: 1px solid var(--surface-light);
            padding: 1rem 0;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            padding: 0.75rem 1.5rem;
            font-family: var(--font-display);
            color: var(--text-main);
            text-transform: uppercase;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        /* Hero / Banner Section */
        .hero {
            position: relative;
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, var(--bg-color) 0%, var(--surface-color) 50%, #1a1608 100%);
            border-bottom: 1px solid var(--surface-light);
            overflow: hidden;
        }

        /* Subtle Tiger Eye Motif Background Element */
        .hero::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(251, 191, 36, 0.05) 0%, rgba(6, 15, 10, 0) 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-body);
        }

        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            margin-bottom: 1.5rem;
            color: var(--accent-color);
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
            max-width: 800px;
        }

        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .chip {
            background-color: var(--surface-light);
            color: var(--text-main);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            border: 1px solid rgba(251, 191, 36, 0.2);
            display: inline-flex;
            align-items: center;
        }

        /* Main Content Area */
        .content-area {
            padding: 3rem 0;
            counter-reset: section-counter;
        }

        .intro-block {
            font-size: 1.125rem;
            color: var(--text-main);
            border-left: 4px solid var(--accent2-color);
            padding-left: 1.5rem;
            margin-bottom: 3rem;
            background: linear-gradient(90deg, rgba(52, 211, 153, 0.05) 0%, transparent 100%);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }

        .article-section {
            margin-bottom: 3.5rem;
            position: relative;
        }

        /* Distinctive H2 with counter for Guide feel */
        .article-section h2 {
            font-size: 1.75rem;
            margin-bottom: 1.25rem;
            display: flex;
            align-items: baseline;
            gap: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--surface-light);
        }

        .article-section h2::before {
            counter-increment: section-counter;
            content: "0" counter(section-counter);
            font-size: 1.25rem;
            color: var(--accent-color);
            font-weight: 700;
            opacity: 0.8;
        }

        .article-section p {
            margin-bottom: 1.25rem;
            color: var(--text-muted);
            font-size: 1.05rem;
        }

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

        /* Surface Cards for alternating sections */
        .card-section {
            background-color: var(--surface-color);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--surface-light);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .card-section h2 {
            border-bottom: none;
            padding-bottom: 0;
        }

        .card-section h2::before {
            color: var(--accent2-color);
        }

        /* Custom List Styling */
        .custom-list {
            list-style: none;
            margin-top: 1.5rem;
            display: grid;
            gap: 1rem;
        }

        .custom-list li {
            position: relative;
            padding-left: 2rem;
            color: var(--text-main);
            font-size: 1.05rem;
            background: rgba(22, 51, 34, 0.3);
            padding: 1rem 1rem 1rem 2.5rem;
            border-radius: 6px;
            border-left: 2px solid var(--accent-color);
        }

        .custom-list li::before {
            content: '✓';
            position: absolute;
            left: 1rem;
            top: 1rem;
            color: var(--accent-color);
            font-weight: bold;
        }

        /* Links within text */
        .article-section a {
            color: var(--accent2-color);
            font-weight: 500;
            border-bottom: 1px dashed var(--accent2-color);
        }

        .article-section a:hover {
            color: var(--accent-color);
            border-bottom-style: solid;
        }

        /* FAQ Section */
        .faq-wrapper {
            background-color: var(--surface-color);
            padding: 4rem 0;
            border-top: 1px solid var(--surface-light);
        }

        .faq-wrapper h2 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 2.5rem;
            color: var(--accent-color);
        }

        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }

        details {
            background-color: var(--bg-color);
            border: 1px solid var(--surface-light);
            border-radius: 8px;
            overflow: hidden;
        }

        summary {
            padding: 1.25rem 1.5rem;
            font-family: var(--font-display);
            font-size: 1.125rem;
            font-weight: 500;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-main);
        }

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

        summary::after {
            content: '+';
            color: var(--accent-color);
            font-size: 1.5rem;
            font-weight: 400;
            transition: transform 0.3s;
        }

        details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }

        details p {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 1rem;
        }

        /* Related Pages Nav Block */
        .related-nav {
            padding: 4rem 0;
            background: linear-gradient(to bottom, var(--bg-color), var(--surface-color));
        }

        .related-nav h3 {
            text-align: center;
            font-size: 1.5rem;
            margin-bottom: 2rem;
            color: var(--text-main);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .link-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        .link-grid a {
            background-color: var(--surface-light);
            color: var(--text-main);
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            font-family: var(--font-display);
            font-size: 1rem;
            border: 1px solid transparent;
            text-transform: capitalize;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }

        .link-grid a:hover {
            border-color: var(--accent2-color);
            background-color: rgba(52, 211, 153, 0.1);
            color: var(--accent2-color);
        }

        /* Grand CTA Section */
        .grand-cta {
            padding: 5rem 0;
            background: linear-gradient(135deg, #163322 0%, #0d2015 100%);
            text-align: center;
            border-top: 2px solid var(--accent-color);
            position: relative;
        }

        .grand-cta h2 {
            font-size: clamp(2rem, 4vw, 2.5rem);
            margin-bottom: 1rem;
            color: var(--accent-color);
        }

        .grand-cta p {
            font-size: 1.125rem;
            color: var(--text-main);
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .btn-group {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            font-family: var(--font-display);
            font-size: 1.125rem;
            font-weight: 600;
            text-transform: uppercase;
            border-radius: 4px;
            min-height: 44px;
            min-width: 160px;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--accent-color);
            color: #000;
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
            color: #000;
        }

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

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

        /* Global Footer (Part A2 Match) */
        footer {
            background-color: #040a07;
            padding: 4rem 0 0;
            border-top: 1px solid var(--surface-light);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-brand .logo {
            display: inline-block;
            margin-bottom: 1rem;
        }

        .footer-tagline {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 300px;
        }

        .footer-links h4 {
            color: var(--text-main);
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
            font-family: var(--font-display);
            text-transform: uppercase;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.95rem;
            min-height: 44px;
            display: inline-block;
        }

        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .footer-bottom {
            text-align: center;
            padding: 1.5rem 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        /* Media Queries */
        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
            .menu-toggle {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
            }
            .content-area {
                padding: 4rem 0;
            }
            .intro-block {
                font-size: 1.25rem;
            }
        }


/* 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; }