:root {
            /* Palette */
            --bg: #04140e;
            --surface: #0a2420;
            --surface-light: #113630;
            --accent: #34d399;
            --accent-hover: #10b981;
            --accent2: #fbbf24;
            --text: #effdf5;
            --muted: #8fb3a3;

            /* Typography */
            --font-display: 'Montserrat', sans-serif;
            --font-body: 'Lora', serif;

            /* Layout */
            --container-w: 1200px;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;

            /* Transitions */
            --transition: all 0.3s ease;
        }

        /* 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: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 1rem;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; display: block; }

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

        /* Header Styles (Matching Homepage constraint) */
        header {
            background-color: rgba(4, 20, 14, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--surface-light);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo { display: flex; align-items: center; }
        .nav-links { display: none; }
        .header-ctas { display: none; gap: 10px; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: var(--transition);
            min-height: 44px; /* Touch target */
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg);
            border: 2px solid var(--accent);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 0 15px rgba(52, 211, 153, 0.4);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }
        .btn-secondary:hover {
            background-color: rgba(52, 211, 153, 0.1);
        }
        .mobile-toggle {
            background: none;
            border: none;
            color: var(--text);
            font-size: 24px;
            cursor: pointer;
            padding: 10px;
        }

        /* Mobile Menu Active State */
        .nav-active .nav-links {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--surface);
            padding: var(--spacing-md);
            border-bottom: 1px solid var(--surface-light);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .nav-active .nav-links a {
            padding: 12px 0;
            font-family: var(--font-display);
            font-weight: 600;
            border-bottom: 1px solid rgba(143, 179, 163, 0.1);
            color: var(--text);
        }
        .nav-active .header-ctas {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: calc(70px + 280px); /* Approx below nav links */
            left: 0;
            width: 100%;
            background-color: var(--surface);
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

        /* Hero / Banner Section */
        .hero-banner {
            position: relative;
            padding: var(--spacing-lg) 0 var(--spacing-md);
            background: radial-gradient(circle at center top, var(--surface-light) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--surface);
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -50%; left: 50%;
            transform: translateX(-50%);
            width: 800px; height: 800px;
            background: radial-gradient(circle, rgba(52, 211, 153, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            font-family: var(--font-display);
            font-size: 12px;
            color: var(--muted);
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-banner h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            margin-bottom: 1rem;
            color: var(--text);
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
            max-width: 800px;
        }
        .meta-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 1.5rem;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background-color: rgba(10, 36, 32, 0.8);
            border: 1px solid var(--surface-light);
            border-radius: 50px;
            font-family: var(--font-display);
            font-size: 12px;
            font-weight: 600;
            color: var(--accent2);
            letter-spacing: 0.5px;
        }

        /* Main Content Layout */
        .main-content {
            padding: var(--spacing-lg) 0;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
            max-width: 900px;
            margin: 0 auto;
        }

        /* Content Styling */
        .intro-block {
            font-size: 1.125rem;
            color: var(--text);
            padding: 24px 32px;
            background-color: var(--surface);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: var(--spacing-md);
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
        }

        .content-section {
            margin-bottom: var(--spacing-md);
        }
        .content-section h2 {
            font-size: 1.75rem;
            color: var(--accent);
            border-bottom: 1px solid var(--surface-light);
            padding-bottom: 12px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .content-section p {
            margin-bottom: 1.25rem;
            color: #d1e8df;
        }
        .content-section p a {
            font-weight: 600;
            border-bottom: 1px dashed var(--accent);
        }
        .content-section p a:hover {
            border-bottom-style: solid;
        }

        /* Custom List Styling */
        .step-list {
            list-style: none;
            margin: 24px 0;
            counter-reset: toto-step;
            background: var(--surface);
            padding: 32px;
            border-radius: var(--radius-md);
            border: 1px solid var(--surface-light);
        }
        .step-list li {
            position: relative;
            padding-left: 56px;
            margin-bottom: 24px;
            font-size: 1.05rem;
            color: #d1e8df;
        }
        .step-list li:last-child { margin-bottom: 0; }
        .step-list li::before {
            counter-increment: toto-step;
            content: counter(toto-step);
            position: absolute;
            left: 0;
            top: -4px;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #10b981);
            color: var(--bg);
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            box-shadow: 0 4px 10px rgba(52, 211, 153, 0.3);
        }

        /* Tips Section Special Styling */
        .tips-section {
            background: linear-gradient(to right, rgba(251, 191, 36, 0.05), transparent);
            border-left: 4px solid var(--accent2);
            padding: 24px 32px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .tips-section h2 {
            color: var(--accent2);
            border-bottom-color: rgba(251, 191, 36, 0.2);
        }

        /* FAQ Section */
        .faq-wrapper {
            margin-top: var(--spacing-lg);
        }
        .faq-wrapper h2 {
            text-align: center;
            border: none;
            font-size: 2rem;
            margin-bottom: 2rem;
        }
        details {
            background-color: var(--surface);
            border: 1px solid var(--surface-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        details:hover {
            border-color: var(--accent);
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }
        summary {
            padding: 20px 24px;
            font-family: var(--font-display);
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            list-style: none;
            position: relative;
            padding-right: 50px;
            color: var(--text);
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: '+';
            position: absolute;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 24px;
            color: var(--accent);
            font-weight: 400;
            transition: transform 0.3s ease;
        }
        details[open] summary::after {
            content: '−';
            transform: translateY(-50%) rotate(180deg);
        }
        details p {
            padding: 0 24px 24px;
            color: #d1e8df;
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 16px;
        }

        /* Related Pages Nav */
        .related-nav {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--surface-light);
        }
        .related-nav h3 {
            font-size: 1.25rem;
            color: var(--muted);
            text-align: center;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .related-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .rel-link {
            display: inline-block;
            padding: 10px 20px;
            background-color: var(--surface);
            border: 1px solid var(--surface-light);
            border-radius: 50px;
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }
        .rel-link:hover {
            background-color: var(--accent);
            color: var(--bg);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* Grand CTA */
        .grand-cta {
            margin-top: var(--spacing-lg);
            background: linear-gradient(145deg, var(--surface), var(--bg));
            border: 1px solid var(--surface-light);
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }
        .grand-cta::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent2));
        }
        .grand-cta h2 {
            font-size: 2.25rem;
            margin-bottom: 16px;
        }
        .grand-cta p {
            font-size: 1.125rem;
            color: var(--muted);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons-wrap {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer Styles (Matching Homepage constraint) */
        footer {
            background-color: #020a07;
            border-top: 1px solid var(--surface-light);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
            font-family: var(--font-display);
        }
        .footer-top {
            text-align: center;
            margin-bottom: var(--spacing-md);
        }
        .footer-brand {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .footer-tagline {
            color: var(--muted);
            font-size: 14px;
            max-width: 500px;
            margin: 0 auto;
            font-family: var(--font-body);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px 24px;
            margin-bottom: var(--spacing-lg);
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 14px;
            font-weight: 600;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            text-align: center;
            color: #4a6358;
            font-size: 12px;
            border-top: 1px solid rgba(143, 179, 163, 0.1);
            padding-top: var(--spacing-md);
        }

        /* Media Queries */
        @media (min-width: 768px) {
            .header-ctas { display: flex; }
            .mobile-toggle { display: none; }
            .nav-links { display: flex; gap: 24px; }
            .nav-links a {
                color: var(--text);
                font-family: var(--font-display);
                font-weight: 600;
                font-size: 14px;
                text-transform: uppercase;
            }
            .nav-links a:hover { color: var(--accent); }
            .grand-cta { padding: 64px 48px; }
        }
        @media (min-width: 1024px) {
            .article-layout { grid-template-columns: 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; }